Abstract:
:The association between breast cancer risk and genetic variants of fibroblast growth factor receptor 2 (FGFR2) has been identified and repeatedly confirmed; however, the mechanism underlying FGFR2 in breast tumorigenesis remains obscure. Given that breast tumorigenesis is particularly related to DNA double-strand-break-repair (DSBR), we examined the hypothesis that FGFR2 is involved in DSBR. Our results show that expression of Mre11, a vital exonuclease in DSBR, is downregulated by FGFR2, which is further linked to decreased DSBR. Analysis of the Mre11 promoter revealed that POU1F1 mediates FGFR2-induced Mre11 downregulation. Furthermore, ERK, downstream of FGFR2, directly interacts with and phosphorylates POU1F1, increasing POU1F1 binding capacity to the Mre11 promoter and repressing Mre11 expression, which consequently affects DSBR and sensitizes breast cancer cells to chemotherapeutic treatments. The importance of the FGFR2-Mre11-DSBR link in cancer progression is suggested by the finding that genotypes of FGFR2 and Mre11 are associated with survival of breast cancer patients and that FGFR2 expression correlates with cancer prognosis specifically in patients receiving chemotherapy. This study yields important insight into the role of FGFR2 in breast tumorigenesis and may facilitate development of a useful therapeutic approach for breast cancer.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Huang YL,Chou WC,Hsiung CN,Hu LY,Chu HW,Shen CYdoi
10.1093/hmg/ddv102subject
Has Abstractpub_date
2015-06-15 00:00:00pages
3506-17issue
12eissn
0964-6906issn
1460-2083pii
ddv102journal_volume
24pub_type
杂志文章abstract::Mutations in the survival motor neuron (SMN1) gene lead to the neuromuscular disease spinal muscular atrophy (SMA). Although SMA is primarily considered as a motor neuron disease, the importance of muscle defects in its pathogenesis has not been fully examined. We use both primary cell culture and two different SMA mo...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu142
更新日期:2014-08-15 00:00:00
abstract::Spinal muscular atrophy (SMA) is a genetic disorder characterized by loss of motor neurons in the spinal cord leading to muscle atrophy and death. Although motor neurons (MNs) are the most obviously affected cells in SMA, recent evidence suggest dysfunction in multiple cell types. Astrocytes are a crucial component of...
journal_title:Human molecular genetics
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journal_title:Human molecular genetics
pub_type: 杂志文章
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journal_title:Human molecular genetics
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更新日期:2007-04-15 00:00:00
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doi:10.1093/hmg/7.1.27
更新日期:1998-01-01 00:00:00
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journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/10.3.221
更新日期:2001-02-01 00:00:00
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journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt523
更新日期:2014-03-01 00:00:00
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journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddy358
更新日期:2019-02-15 00:00:00
abstract::Fragile X syndrome (FXS), a common inherited form of intellectual disability with learning deficits, results from a loss of fragile X mental retardation protein (FMRP). Despite extensive research, treatment options for FXS remain limited. Since FMRP is known to play an important role in adult hippocampal neurogenesis ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddr501
更新日期:2012-02-01 00:00:00
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journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddy182
更新日期:2018-08-01 00:00:00
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journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/8.5.899
更新日期:1999-05-01 00:00:00
abstract::Genomic data offer a goldmine of information for understanding the contribution of genetic variation makes to health and disease. The potential of genomic medicine, to predict, diagnose, manage and treat genetic disease, is underpinned by accurate variant interpretation. This in itself hinges on the ability to access ...
journal_title:Human molecular genetics
pub_type: 杂志文章,评审
doi:10.1093/hmg/ddy084
更新日期:2018-05-01 00:00:00
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journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/dds021
更新日期:2012-05-01 00:00:00
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journal_title:Human molecular genetics
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doi:10.1093/hmg/ddt365
更新日期:2013-12-20 00:00:00
abstract::The identification of multiple signals at individual loci could explain additional phenotypic variance ('missing heritability') of common traits, and help identify causal genes. We examined gene expression levels as a model trait because of the large number of strong genetic effects acting in cis. Using expression pro...
journal_title:Human molecular genetics
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更新日期:2011-10-15 00:00:00
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journal_title:Human molecular genetics
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doi:10.1093/hmg/ddt435
更新日期:2014-01-15 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2007-10-15 00:00:00
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journal_title:Human molecular genetics
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journal_title:Human molecular genetics
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更新日期:2008-12-15 00:00:00
abstract::Spastic paraplegia 35 (SPG35) (OMIM: 612319) or fatty acid hydroxylase-associated neurodegeneration (FAHN) is caused by deficiency of fatty acid 2-hydroxylase (FA2H). This enzyme synthesizes sphingolipids containing 2-hydroxylated fatty acids, which are particularly abundant in myelin. Fa2h-deficient (Fa2h-/-) mice de...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddaa246
更新日期:2021-01-21 00:00:00
abstract::Fragile X syndrome, a common form of inherited mental retardation, is caused by loss of the fragile X mental retardation protein (FMRP). As a selective RNA-binding protein, FMRP is localized predominately in cytoplasm, where it regulates translational control. However, there is a small portion of FMRP present in the n...
journal_title:Human molecular genetics
pub_type: 杂志文章
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journal_title:Human molecular genetics
pub_type: 杂志文章
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abstract::In the normal diploid mouse embryo, active demethylation of the paternal genome but not of the maternal genome occurs within only a few hours and in a highly coordinated fashion as the zygote proceeds through the first G1 phase. This zygotic demethylation may be necessary to reprogram the sperm genome for somatic deve...
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journal_title:Human molecular genetics
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journal_title:Human molecular genetics
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更新日期:2005-10-01 00:00:00