Availability of Grant Funds for the Support of Cooperative Agreement Award to Georgetown University Entitled: Genome Wide Methylation Arrays for Detecting Markers of Increased Susceptibility to Mammary Cancer Caused by In-Utero Exposures to Endocrine Disruptors (U01), 48572-48574 [E9-22848]
Download as PDF
mstockstill on DSKH9S0YB1PROD with NOTICES
48572
Federal Register / Vol. 74, No. 183 / Wednesday, September 23, 2009 / Notices
Philippine and is currently being
commercialized in the US by Epeius
Biotechnologies.
Inventor: Bruce A. Shapiro (NCI).
Publications:
1. E Bindewald, C Grunewald, B
Boyle, M O’Connor, BA Shapiro.
Computational strategies for the
automated design of RNA nanoscale
structures from building blocks using
NanoTiler. J Mol Graph Model. 2008
Oct;27(3):299–308.
2. B Shapiro, E Bindewald, W
Kasprzak, Y Yingling. (E Gazit, F
Nussinov, eds.) Protocols for the In
silico Design of RNA Nanostructures. In:
Nanostructure Design Methods and
Protocols. Totowa, NJ: Humana Press;
2008. p. 93–115.
3. HM Martinez, JV Maizel Jr, BA
Shapiro. RNA2D3D: a program for
generating, viewing, and comparing 3dimensional models of RNA. J Biomol
Struct Dyn. 2008 Jun;25(6):669–683.
4. I Severcan, C Geary, L Jaeger, E
Bindewald, W Kasprzak, B Shapiro. (G
Alterovitz, M Ramoni, R Benson, eds.)
Computational and Experimental RNA
Nanoparticle Design. In: Automation in
Genomics and Proteomics: An
Engineering Case-Based Approach.
Hoboken: Wiley Publishing; 2009.
5. E Bindewald, R Hayes, YG
Yingling, W Kasprzak, BA Shapiro.
RNAJunction: a database of RNA
junctions and kissing loops for threedimensional structural analysis and
nanodesign. Nucleic Acids Res. 2008
Jan;36:D392–397.
6. YG Yingling and BA Shapiro.
Computational design of an RNA
hexagonal nanoring and an RNA
nanotube. Nano Lett. 2007
Aug;7(8):2328–2334.
7. BA Shapiro and YG Yingling. PCT
Application No. PCT/US2007/13027
filed 31 May 2007, which published as
WO 2008/039254 on 03 Apr 2008, and
U.S. Patent Application No. 12/227,955
filed 02 Dec 2008; both entitled ‘‘RNA
Hexagonal Ring and RNA Nanotube.’’
Patent Status: U.S. Provisional
Application No. 61,187,495 filed 16 Jun
2009 (HHS Reference No. E–059–2009/
0–US–01).
Licensing Status: Available for
licensing.
Licensing Contacts: Uri Reichman,
Ph.D., MBA; 301–435–4616;
UR7a@nih.gov; John Stansberry, Ph.D.;
301–435–5236; js852e@nih.gov
Collaborative Research Opportunity:
The National Cancer Institute’s
Nanobiology Program is seeking
statements of capability or interest from
parties interested in collaborative
research to further develop, evaluate, or
commercialize RNA nanostructures.
Please contact John D. Hewes, Ph.D. at
VerDate Nov<24>2008
17:06 Sep 22, 2009
Jkt 217001
301–435–3121 or hewesj@mail.nih.gov
for more information.
wronnenberg@niaid.nih.gov for more
information.
Bactericidal Peptides From Avian
Leukocyte Ribonuclease A–2
Dated: September 17, 2009.
Richard U. Rodriguez,
Director, Division of Technology Development
and Transfer, Office of Technology Transfer,
National Institutes of Health.
[FR Doc. E9–22975 Filed 9–22–09; 8:45 am]
Description of Invention: These
bactericidal polypeptides offer a novel
alternative to conventional antibiotics
that are used to treat and prevent
bacterial infections. As infectioncausing bacteria continue to develop
antibiotic resistance to first line
antibiotics there will always be a need
for new antibiotic alternatives.
Additionally, a greater understanding of
the specific cytoxic activity of RNase A
ribonucleases, their functional domains,
and their roles in promoting antipathogen host defense may provide
insight into new therapeutic agents.
This invention includes a novel
RNase A ribonuclease from chicken
leukocytes and polypeptides that have
bactericidal activities against both gram
positive and gram negative bacteria,
including such pathogens as Escherichia
coli, Salmonella spp., and
Staphylococcus.
Applications:
• Polypeptides exhibiting
bactericidal, bacteriostatic, and
ribonuclease activity.
• Pharmaceutical compositions
comprising the bactericidal
polypeptides.
• Methods for treating bacterial
infections.
Development Status: Early stage.
Market: With the increase in
antibiotic and antibacterial drug
resistance, the market for alternatives is
growing.
Inventors: Helene F. Rosenberg et al.
(NIAID).
Related Publication: T Nitto, KD Dyer,
M Czapiga, HF Rosenberg. Evolution
and function of leukocyte RNase A
ribonucleases of the avian species,
Gallus gallus. J Biol Chem. 2006 Sep
1;281(35):25622–25634.
Patent Status: U.S. Patent Application
No. 12/438,700 filed 24 Feb 2009,
claiming priority to 24 Aug 2006 (HHS
Reference No. E–281–2006/0–US–03)
Licensing Status: Available for
licensing.
Licensing Contact: RC Tang JD LLM;
301–435–5031; tangrc@mail.nih.gov.
Collaborative Research Opportunity:
The NIAID Laboratory of Allergic
Diseases is seeking statements of
capability or interest from parties
interested in collaborative research to
further develop, evaluate, or
commercialize this technology. Please
contact William Ronnenberg, NIAID
Office of Technology Development, at
301–451–3522 or
PO 00000
Frm 00055
Fmt 4703
Sfmt 4703
BILLING CODE 4140–01–P
DEPARTMENT OF HEALTH AND
HUMAN SERVICES
Food and Drug Administration
[Docket No. FDA–2009–N–0440]
Availability of Grant Funds for the
Support of Cooperative Agreement
Award to Georgetown University
Entitled: Genome Wide Methylation
Arrays for Detecting Markers of
Increased Susceptibility to Mammary
Cancer Caused by In-Utero Exposures
to Endocrine Disruptors (U01)
AGENCY:
Food and Drug Administration,
HHS.
ACTION:
Notice.
SUMMARY: The Food and Drug
Administration (FDA), Center for
Veterinary Medicine (CVM), and Office
of New Animal Drugs (ONADE) is
announcing the availability of grant
funds for the support of a sole source,
cooperative agreement award to
Georgetown University, Lombardi
Cancer Research Center and Department
of Oncology entitled: ‘‘Genome Wide
Methylation Arrays for Detection
Markers of Increased Susceptibility to
Mammary Cancer Caused by In-Utero
Exposures to Endocrine Disruptors
(U01).’’ The main purpose of this study
is to help gain an understanding of the
extent to which exposures to endocrine
disruptors early in life increase later
susceptibility to developing breast
cancer by inducing heritable epigenetic
changes in transcription factors, which
are linked to increased breast cancer
risk. The study is subject to the
requirements of the Federal Food, Drug,
and Cosmetic Act (the act) (21 U.S.C.
331, et seq.) regulations issued under it
and applicable Department of Health
and Human Services statutes and
regulations.
Important dates are as follows:
1. The application due date is 30 days
from the publication in the Federal
Register.
2. The anticipated start date is
September 2009.
FOR FURTHER INFORMATION CONTACT:
Peer Review/Administrative Contact:
Michelle Fuller, Center for
DATES:
E:\FR\FM\23SEN1.SGM
23SEN1
Federal Register / Vol. 74, No. 183 / Wednesday, September 23, 2009 / Notices
Veterinary Medicine (HFV–10),
Food and Drug Administration,
7519 Standish Pl., Rockville, MD
20855, 240–276–9736, FAX: 240–
276–9744, email:michelle.fuller@fda.hhs.gov.
Scientific Contact: M. Cecilia Aguila,
Center for Veterinary Medicine
(HFV–153), Food and Drug
Administration, 7500 Standish Pl.
(rm. E478), Rockville, MD 20855,
240–276–8125, FAX: 240–276–
8116, e-mail:
Cecilia.aguila@fda.hhs.gov.
For more information on this funding
opportunity announcement (FOA), and
to obtain detailed requirements, please
refer to the full FOA located at https://
www.fda.gov/cvm.
SUPPLEMENTARY INFORMATION:
mstockstill on DSKH9S0YB1PROD with NOTICES
I. Funding Opportunity Description
Request for Application: RFA FD09–020
Catalog of Federal Domestic Assistance
Number: 93.103
A. Background
More than 80,000 chemicals are
registered for use in commerce in the
United States and an estimated 2,000
new chemicals are introduced annually.
These chemicals are used or present as
contaminants in everyday items such as:
Foods, personal care products,
prescription drugs, household cleaners,
and lawn care products (National
Toxicology Program, 2002). Scientists
are continually learning more about
how these compounds interact with the
body and the long-term impact of these
interactions on our health. For example,
many synthetic chemicals have been
identified as known or suspected EDCs
(endocrine disruptors), including DES
(diethylstilbesterol), BPA (bisphenol A),
and GEN (genistein). The long-term
impact of these chemicals on human
health is still largely unknown,
particularly when the exposure levels
are relatively low and do not cause any
apparent toxic effects. EDCs may have
estrogenic, antiestrogenic, androgenic,
and/or anti-androgenic actions and /or
they may disrupt adrenal and/or thyroid
functions, too.
The endocrine system participates in
many important functions of an
organism, such as sexual differentiation
before birth, sexual maturation during
puberty, reproduction in adulthood,
growth, metabolism, digestion,
cardiovascular and immune functions,
and excretion. Hormones are implicated
in the etiology of certain cancers of
hormone-dependent tissues, such as
those of the breast, uterus, and prostate
gland. Environmentally released manmade chemicals are suspected of being
VerDate Nov<24>2008
17:06 Sep 22, 2009
Jkt 217001
responsible for numerous adverse
effects on the endocrine function in
wildlife species as well as in humans.
EDCs may be harmful to human
health following fetal exposure. This
likely relates to epigenetic changes in
gene methylation patterns occurring
during gametogenesis and embryonic
development. During these periods,
most of our genes are demethylated,
followed by remethylation; the timing
and pattern of remethylation depends
on the tissue lineage, intrauterine
environment, and maternal nutrition
and other exposures. Several genes have
been identified whose expression is
epigenetically altered in adult tissues in
animals that have been exposed in utero
to environmental contaminants with
endocrine disrupting activity. Therefore,
we hypothesize that in utero EDC
exposures increase hypomethylation of
genes, including those that regulate
mammary stem cell behavior.
It is increasingly evident that many
diseases, including breast cancer, may
originate during fetal life. Experimental
findings and limited human data show
that maternal exposures during
pregnancy to synthetic estrogens such as
DES or endocrine disruptors present in
food may precipitate mammary gland
development and increase breast cancer
risk. To date, traditional toxicity tests
such as the 2-year rodent bioassay have
been the bases for most regulatory
decisions regarding the carcinogenic
potential of chemicals in the food. The
agency recommends an in utero
exposure in these bioassays for direct
food and color additives. Therefore,
only a limited number of chemicals
have been studied by this approach.
Additionally, these in vivo toxicology
studies are not routinely used to predict
the effects of in utero exposures on later
susceptibility to various diseases.
B. Research Objectives
The main purpose of the this study is
to help gain an understanding of the
extent to which exposures to endocrine
disruptors early in life increase later
susceptibility to developing breast
cancer by inducing heritable epigenetic
changes in transcription factors, which
are linked to increased breast cancer
risk. This will be accomplished, first, by
exposing pregnant rodents to estrogen
and estrogen-like endocrine disruptors
at doses previously found to increase
mammary cancer among offspring.
Focus will be on the resulting
hypomethylated genes that express high
levels of transcription factors, which
regulate proliferation, apoptosis, and
differentiation of mammary epithelial
cells. Second, humans will be exposed
to maternal diet containing plant-
PO 00000
Frm 00056
Fmt 4703
Sfmt 4703
48573
derived compounds with hormonal
activity during pregnancy to determine
if the diet induces epigenetic changes
among daughters in the same
transcription factors identified in
rodents. Third, the study will utilize
genetically modified animal models to
determine if the epigenetic changes
identified in global methylation arrays
are causally linked to an increased
susceptibility to developing mammary
cancer in vivo.
The data from this study will be used
to develop the Prenatal Endocrine
Disruption and Mammary Tumor
Susceptibility assay (PEDMATS), which
will provide a novel approach for
predicting the safety of chemicals with
endocrine activity. Consequently, the
agency will benefit from the proposed
study, which combines mechanismfocused toxicology studies and modern
molecular biology tools, and addresses
the question of the cellular target of
breast cancer initiation; i.e., mammary
stem and progenitor cells. PEDMATS
would help the agency to predict the
potential breast cancer risk for
chemicals that have been identified as
having, or that may have, endocrine
activity, and for which there are no
valid rodent carcinogenicity bioassays.
Another valuable feature of this
approach is the potential that the
PEDMATS studies can be integrated
into the current reproductive and
developmental toxicity assessment
battery used to evaluate the safety of
new drugs.
C. Eligibility Information
Georgetown University is uniquely
qualified to conduct this research. It has
the expertise to study genetic markers in
breast cancer in animal models and
humans. Importantly, Georgetown
University has expertise and proven
ability in identifying genes affected in
breast cancer. The data analysis is a
critical component of the hybridization
array experiments and poses a number
of challenges due to the large amount of
data generated even in a single
experiment. Sophisticated, statistically
principled data mining tools should be
used. These state-of-the-art clustering
pattern analyses use standard Finite
Normal Mixture models and
probabilistic component subspaces,
multimodal clusters being automatically
identified using Akaide information
criterion and minimal information
analysis. Georgetown University,
Lombardi Cancer Center recently
developed a simple approach for the
exploration of limited gene expression
data sets. To reduce dimensionality, a
simple univariate statistical analysis (ttest) to compare gene expression data is
E:\FR\FM\23SEN1.SGM
23SEN1
48574
Federal Register / Vol. 74, No. 183 / Wednesday, September 23, 2009 / Notices
used. The reduced dimensional data set
is visualized in three dimensions using
these novel algorithms. These visualized
algorithms derive the first three
principal components from Fisher’s
matrix and project the multidimensional
data into three dimensional gene
expression data space. Exploration of
the reduced dimensional data set allows
for the identification of discriminant
genes that are either assembled into a
predictive neural network, and/ or
selected for functional studies. These
approaches have proved useful in recent
studies conducted by Dr. HilakiviClarke (Georgetown University,
Lombardi Cancer Center) in identifying
genes affected by timing of dietary
exposures on breast cancer risk and are
the preferred approaches for this study.
Georgetown University, Lombardi
Cancer Research Center Animal Core
Facility has an AAALAC (Association
for Assessment and Accreditation of
Laboratory Animal Care) accredited
animal facility where the animals can be
housed. Georgetown can provide the
software, hardware, and sophisticated,
statistically principled data mining
tools. In addition, Georgetown
University is already collaborating in an
on-going women study in Finland
measuring hormone and adipokine
levels from blood samples.
This is a sole source award to
Lombardi Comprehensive Cancer Center
and Department of Oncology,
Georgetown University, Washington,
DC.
II. Award Information/Funds Available
Awards are made under the
authorization of section 301 of the
Public Health Service Act (PHS Act) (42
U.S.C. 241), as amended, and under
Federal regulations at 42 CFR part 52
and 45 CFR parts 74 and 92.
mstockstill on DSKH9S0YB1PROD with NOTICES
A. Award Amount
The total amount CVM expects to
award is $100,400 in the first year and
$104,400 in the second year for a total
award of $204,800; total award amount
includes direct and indirect costs.
B. Length of Support
The project period will be from
September 2009 to August 31, 2011. The
first budget period will be from
September 2009 to August 31, 2010.
The second year award will depend
on the availability of funds and
recipient approved performance.
III. Paper Application, Registration,
and Submission Information
To submit a paper application in
response to this FOA, applicants should
first review the full announcement
VerDate Nov<24>2008
17:06 Sep 22, 2009
Jkt 217001
located at https://www.fda.gpo/cvm.
Persons interested in applying for a
grant may obtain application forms and
instructions at https://grants.nih.gov/
grants/forms.htm. For all paper
application submissions, the following
steps are required:
• Step 1: Obtain a Dun and Bradstreet
(DUNS) Number
• Step 2: Register With Central
Contractor Registration (CCR)
• Step 3: Register With Electronic
Research Administration (eRA)
Commons
Steps 1 (DUNS Number) and 2 (CCR),
in detail, can be found at https://
www07.grants.gov/applicants/
organization_registration.jsp. Step 3
(eRA Commons), in detail, can be found
at https://commons.era.nih.gov/
commons/registration/registration
Instructions.jsp.
After you have followed these steps,
submit paper applications to the Grants
Management Contact at the following
address:
Gladys M. Bohler, Division of
Acquisition Support and Grants (HFA–
500), Food and Drug Administration,
5630 Fishers Lane, rm. 2105, Rockville,
MD 20857, 301–827–7168, FAX: 301–
827–7101, e-mail:
gladys.bohler@fda.hhs.gov.
Dated: September 17, 2009.
David Horowitz,
Assistant Commissioner for Policy.
[FR Doc. E9–22848 Filed 9–22–09; 8:45 am]
BILLING CODE 4160–01–S
DEPARTMENT OF HEALTH AND
HUMAN SERVICES
National Institutes of Health
National Institute of Dental &
Craniofacial Research; Notice of
Closed Meeting
Pursuant to section 10(d) of the
Federal Advisory Committee Act, as
amended (5 U.S.C. App.), notice is
hereby given of the following meeting.
The meeting will be closed to the
public in accordance with the
provisions set forth in sections
552b(c)(4) and 552b(c)(6), Title 5 U.S.C.,
as amended. The grant applications and
the discussions could disclose
confidential trade secrets or commercial
property such as patentable material,
and personal information concerning
individuals associated with the grant
applications, the disclosure of which
would constitute a clearly unwarranted
invasion of personal privacy.
Name of Committee: National Institute of
Dental and Craniofacial Research Special
Emphasis Panel; Review of R34 Clinical Trial
PO 00000
Frm 00057
Fmt 4703
Sfmt 4703
Pilot Applications PAR–08–195 and R01 PA–
07–070 Applications.
Date: October 30, 2009.
Time: 10:30 a.m. to 1:30 p.m.
Agenda: To review and evaluate grant
applications.
Place: National Institutes of Health, One
Democracy Plaza, 6701 Democracy
Boulevard, Bethesda, MD 20892, (Telephone
Conference Call).
Contact Person: Rebecca Wagenaar Miller,
PhD, Scientific Review Officer, Scientific
Review Branch, National Inst of Dental &
Craniofacial Research, National Institutes of
Health, 6701 Democracy, Rm 666, Bethesda,
MD 20892, 301–594–0652,
rwagenaa@mail.nih.gov.
Catalogue of Federal Domestic Assistance
Program Nos. 93.121, Oral Diseases and
Disorders Research, National Institutes of
Health, HHS)
Dated: September 16, 2009.
Jennifer Spaeth,
Director, Office of Federal Advisory
Committee Policy.
[FR Doc. E9–22969 Filed 9–22–09; 8:45 am]
BILLING CODE 4140–01–P
DEPARTMENT OF HEALTH AND
HUMAN SERVICES
National Institutes of Health
National Institute of Allergy and
Infectious Diseases; Notice of Closed
Meeting
Pursuant to section 10(d) of the
Federal Advisory Committee Act, as
amended (5 U.S.C. App.), notice is
hereby given of the following meeting.
The meeting will be closed to the
public in accordance with the
provisions set forth in sections
552b(c)(4) and 552b(c)(6), Title 5 U.S.C.,
as amended. The grant applications and
the discussions could disclose
confidential trade secrets or commercial
property such as patentable material,
and personal information concerning
individuals associated with the grant
applications, the disclosure of which
would constitute a clearly unwarranted
invasion of personal privacy.
Name of Committee: Microbiology,
Infectious Diseases and AIDS Initial Review
Group; Microbiology and Infectious Diseases
Research Committee.
Date: October 6, 2009.
Time: 8 a.m. to 5 p.m.
Agenda: To review and evaluate grant
applications.
Place: The Legacy, 1775 Rockville Pike,
Rockville, MD 20852.
Contact Person: Michelle M. Timmerman,
PhD, Scientific Review Officer, Scientific
Review Program, DEA/NIAID/NIH/DHHS,
Room 2217, 6700B Rockledge Drive, MSC–
7616, Bethesda, MD 20892–7616. 301–451–
4573. timmermanm@niaid.nih.gov.
This notice is being published less than 15
days prior to the meeting due to the timing
E:\FR\FM\23SEN1.SGM
23SEN1
Agencies
[Federal Register Volume 74, Number 183 (Wednesday, September 23, 2009)]
[Notices]
[Pages 48572-48574]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-22848]
-----------------------------------------------------------------------
DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration
[Docket No. FDA-2009-N-0440]
Availability of Grant Funds for the Support of Cooperative
Agreement Award to Georgetown University Entitled: Genome Wide
Methylation Arrays for Detecting Markers of Increased Susceptibility to
Mammary Cancer Caused by In-Utero Exposures to Endocrine Disruptors
(U01)
AGENCY: Food and Drug Administration, HHS.
ACTION: Notice.
-----------------------------------------------------------------------
SUMMARY: The Food and Drug Administration (FDA), Center for Veterinary
Medicine (CVM), and Office of New Animal Drugs (ONADE) is announcing
the availability of grant funds for the support of a sole source,
cooperative agreement award to Georgetown University, Lombardi Cancer
Research Center and Department of Oncology entitled: ``Genome Wide
Methylation Arrays for Detection Markers of Increased Susceptibility to
Mammary Cancer Caused by In-Utero Exposures to Endocrine Disruptors
(U01).'' The main purpose of this study is to help gain an
understanding of the extent to which exposures to endocrine disruptors
early in life increase later susceptibility to developing breast cancer
by inducing heritable epigenetic changes in transcription factors,
which are linked to increased breast cancer risk. The study is subject
to the requirements of the Federal Food, Drug, and Cosmetic Act (the
act) (21 U.S.C. 331, et seq.) regulations issued under it and
applicable Department of Health and Human Services statutes and
regulations.
DATES: Important dates are as follows:
1. The application due date is 30 days from the publication in the
Federal Register.
2. The anticipated start date is September 2009.
FOR FURTHER INFORMATION CONTACT:
Peer Review/Administrative Contact: Michelle Fuller, Center for
[[Page 48573]]
Veterinary Medicine (HFV-10), Food and Drug Administration, 7519
Standish Pl., Rockville, MD 20855, 240-276-9736, FAX: 240-276-9744, e-
mail:michelle.fuller@fda.hhs.gov.
Scientific Contact: M. Cecilia Aguila, Center for Veterinary
Medicine (HFV-153), Food and Drug Administration, 7500 Standish Pl.
(rm. E478), Rockville, MD 20855, 240-276-8125, FAX: 240-276-8116, e-
mail: Cecilia.aguila@fda.hhs.gov.
For more information on this funding opportunity announcement
(FOA), and to obtain detailed requirements, please refer to the full
FOA located at https://www.fda.gov/cvm.
SUPPLEMENTARY INFORMATION:
I. Funding Opportunity Description
Request for Application: RFA FD09-020
Catalog of Federal Domestic Assistance Number: 93.103
A. Background
More than 80,000 chemicals are registered for use in commerce in
the United States and an estimated 2,000 new chemicals are introduced
annually. These chemicals are used or present as contaminants in
everyday items such as: Foods, personal care products, prescription
drugs, household cleaners, and lawn care products (National Toxicology
Program, 2002). Scientists are continually learning more about how
these compounds interact with the body and the long-term impact of
these interactions on our health. For example, many synthetic chemicals
have been identified as known or suspected EDCs (endocrine disruptors),
including DES (diethylstilbesterol), BPA (bisphenol A), and GEN
(genistein). The long-term impact of these chemicals on human health is
still largely unknown, particularly when the exposure levels are
relatively low and do not cause any apparent toxic effects. EDCs may
have estrogenic, antiestrogenic, androgenic, and/or anti-androgenic
actions and /or they may disrupt adrenal and/or thyroid functions, too.
The endocrine system participates in many important functions of an
organism, such as sexual differentiation before birth, sexual
maturation during puberty, reproduction in adulthood, growth,
metabolism, digestion, cardiovascular and immune functions, and
excretion. Hormones are implicated in the etiology of certain cancers
of hormone-dependent tissues, such as those of the breast, uterus, and
prostate gland. Environmentally released man-made chemicals are
suspected of being responsible for numerous adverse effects on the
endocrine function in wildlife species as well as in humans.
EDCs may be harmful to human health following fetal exposure. This
likely relates to epigenetic changes in gene methylation patterns
occurring during gametogenesis and embryonic development. During these
periods, most of our genes are demethylated, followed by remethylation;
the timing and pattern of remethylation depends on the tissue lineage,
intrauterine environment, and maternal nutrition and other exposures.
Several genes have been identified whose expression is epigenetically
altered in adult tissues in animals that have been exposed in utero to
environmental contaminants with endocrine disrupting activity.
Therefore, we hypothesize that in utero EDC exposures increase
hypomethylation of genes, including those that regulate mammary stem
cell behavior.
It is increasingly evident that many diseases, including breast
cancer, may originate during fetal life. Experimental findings and
limited human data show that maternal exposures during pregnancy to
synthetic estrogens such as DES or endocrine disruptors present in food
may precipitate mammary gland development and increase breast cancer
risk. To date, traditional toxicity tests such as the 2-year rodent
bioassay have been the bases for most regulatory decisions regarding
the carcinogenic potential of chemicals in the food. The agency
recommends an in utero exposure in these bioassays for direct food and
color additives. Therefore, only a limited number of chemicals have
been studied by this approach. Additionally, these in vivo toxicology
studies are not routinely used to predict the effects of in utero
exposures on later susceptibility to various diseases.
B. Research Objectives
The main purpose of the this study is to help gain an understanding
of the extent to which exposures to endocrine disruptors early in life
increase later susceptibility to developing breast cancer by inducing
heritable epigenetic changes in transcription factors, which are linked
to increased breast cancer risk. This will be accomplished, first, by
exposing pregnant rodents to estrogen and estrogen-like endocrine
disruptors at doses previously found to increase mammary cancer among
offspring. Focus will be on the resulting hypomethylated genes that
express high levels of transcription factors, which regulate
proliferation, apoptosis, and differentiation of mammary epithelial
cells. Second, humans will be exposed to maternal diet containing
plant-derived compounds with hormonal activity during pregnancy to
determine if the diet induces epigenetic changes among daughters in the
same transcription factors identified in rodents. Third, the study will
utilize genetically modified animal models to determine if the
epigenetic changes identified in global methylation arrays are causally
linked to an increased susceptibility to developing mammary cancer in
vivo.
The data from this study will be used to develop the Prenatal
Endocrine Disruption and Mammary Tumor Susceptibility assay (PEDMATS),
which will provide a novel approach for predicting the safety of
chemicals with endocrine activity. Consequently, the agency will
benefit from the proposed study, which combines mechanism-focused
toxicology studies and modern molecular biology tools, and addresses
the question of the cellular target of breast cancer initiation; i.e.,
mammary stem and progenitor cells. PEDMATS would help the agency to
predict the potential breast cancer risk for chemicals that have been
identified as having, or that may have, endocrine activity, and for
which there are no valid rodent carcinogenicity bioassays. Another
valuable feature of this approach is the potential that the PEDMATS
studies can be integrated into the current reproductive and
developmental toxicity assessment battery used to evaluate the safety
of new drugs.
C. Eligibility Information
Georgetown University is uniquely qualified to conduct this
research. It has the expertise to study genetic markers in breast
cancer in animal models and humans. Importantly, Georgetown University
has expertise and proven ability in identifying genes affected in
breast cancer. The data analysis is a critical component of the
hybridization array experiments and poses a number of challenges due to
the large amount of data generated even in a single experiment.
Sophisticated, statistically principled data mining tools should be
used. These state-of-the-art clustering pattern analyses use standard
Finite Normal Mixture models and probabilistic component subspaces,
multimodal clusters being automatically identified using Akaide
information criterion and minimal information analysis. Georgetown
University, Lombardi Cancer Center recently developed a simple approach
for the exploration of limited gene expression data sets. To reduce
dimensionality, a simple univariate statistical analysis (t-test) to
compare gene expression data is
[[Page 48574]]
used. The reduced dimensional data set is visualized in three
dimensions using these novel algorithms. These visualized algorithms
derive the first three principal components from Fisher's matrix and
project the multidimensional data into three dimensional gene
expression data space. Exploration of the reduced dimensional data set
allows for the identification of discriminant genes that are either
assembled into a predictive neural network, and/ or selected for
functional studies. These approaches have proved useful in recent
studies conducted by Dr. Hilakivi-Clarke (Georgetown University,
Lombardi Cancer Center) in identifying genes affected by timing of
dietary exposures on breast cancer risk and are the preferred
approaches for this study.
Georgetown University, Lombardi Cancer Research Center Animal Core
Facility has an AAALAC (Association for Assessment and Accreditation of
Laboratory Animal Care) accredited animal facility where the animals
can be housed. Georgetown can provide the software, hardware, and
sophisticated, statistically principled data mining tools. In addition,
Georgetown University is already collaborating in an on-going women
study in Finland measuring hormone and adipokine levels from blood
samples.
This is a sole source award to Lombardi Comprehensive Cancer Center
and Department of Oncology, Georgetown University, Washington, DC.
II. Award Information/Funds Available
Awards are made under the authorization of section 301 of the
Public Health Service Act (PHS Act) (42 U.S.C. 241), as amended, and
under Federal regulations at 42 CFR part 52 and 45 CFR parts 74 and 92.
A. Award Amount
The total amount CVM expects to award is $100,400 in the first year
and $104,400 in the second year for a total award of $204,800; total
award amount includes direct and indirect costs.
B. Length of Support
The project period will be from September 2009 to August 31, 2011.
The first budget period will be from September 2009 to August 31, 2010.
The second year award will depend on the availability of funds and
recipient approved performance.
III. Paper Application, Registration, and Submission Information
To submit a paper application in response to this FOA, applicants
should first review the full announcement located at https://www.fda.gpo/cvm. Persons interested in applying for a grant may obtain
application forms and instructions at https://grants.nih.gov/grants/forms.htm. For all paper application submissions, the following steps
are required:
Step 1: Obtain a Dun and Bradstreet (DUNS) Number
Step 2: Register With Central Contractor Registration
(CCR)
Step 3: Register With Electronic Research Administration
(eRA) Commons
Steps 1 (DUNS Number) and 2 (CCR), in detail, can be found at
https://www07.grants.gov/applicants/organization_registration.jsp. Step
3 (eRA Commons), in detail, can be found at https://commons.era.nih.gov/commons/registration/registrationInstructions.jsp.
After you have followed these steps, submit paper applications to
the Grants Management Contact at the following address:
Gladys M. Bohler, Division of Acquisition Support and Grants (HFA-
500), Food and Drug Administration, 5630 Fishers Lane, rm. 2105,
Rockville, MD 20857, 301-827-7168, FAX: 301-827-7101, e-mail:
gladys.bohler@fda.hhs.gov.
Dated: September 17, 2009.
David Horowitz,
Assistant Commissioner for Policy.
[FR Doc. E9-22848 Filed 9-22-09; 8:45 am]
BILLING CODE 4160-01-S