Genomics

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Paternal obesity and epigenetic inheritance of breast cancer: The role of systemic effects and transmission to the second generation


ABSTRACT: Mammary gland from F1 CO female offspring exhibited enhanced development when transplanted into OID females [OID(CO-MG)], as shown by higher mammary gland area, epithelial branching and epithelial elongation, compared to CO females that received a CO mammary gland [CO(CO-MG)]. Similarly, mammary tumors from F1 CO female offspring transplanted into OID females [OID(CO.T)] displayed improved growth with higher proliferation index and lower apoptotic rates. We also found that granddaughters (F2) from the OID grand-paternal germline showed accelerated tumor growth compared to COxCO granddaughters (F2). Transmission of breast cancer predisposition to the F2 generation through OID male germline was associated with alterations in sperm tRNA fragments (tRF) in both F0 and F1 males.

ORGANISM(S): Mus musculus

PROVIDER: GSE161831 | GEO | 2020/11/20

REPOSITORIES: GEO

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