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Table 6 Genes from downregulated network

From: Exposure to ionizing radiation induced persistent gene expression changes in mouse mammary gland

Gene

Full name

Role in cancer quoted from literature

CELSR2

cadherin, EGF LAG seven-pass G-type receptor 2

“Celsr2 was down-regulated in one cell line and in 7% of breast cancers”[38].

PRKCB

protein kinase C, beta

PRKCB has been observed to be downregulated in estrogen receptor negative breast cancer[39].

KIT

v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog. Also known as C-Kit; CD117

Loss of c-kit expression has been reported in 80-90% of breast cancer specimens, suggesting a possible role in the development of tumors[40].

MAP2

microtubule-associated protein 2

“Elevation of MAP2 in breast cancer cell lines led to increased paclitaxel sensitivity” [41].

TDGF1

teratocarcinoma-derived growth factor 1. Also known as CR; CRGF; CRIPTO

“Overexpression of human Cripto-1 in transgenic mice delays mammary gland development and differentiation and induces mammary tumorigenesis”[42].

ELF1

E74-like factor 1

“All of the mouse and most human mammary tumors also displayed decreased expression of genes known to inhibit cell proliferation, including NFKBIA (IKBalpha), GADD45B, and CDKN1A (p21); transcription-related genes such as CEBP, JUN, JUNB, and ELF1;….”[43].

RUNX1

runt-related transcription factor 1

“Furthermore, we found that RUNX1 expression was reduced in high-grade primary breast tumors compared to low/mid-grade tumors”[44].

TYMS

thymidylate synthetase

“Gene polymorphisms in TYMS, MTHFR, p53 and MDR1 as risk factors for breast cancer: a case–control study”[45].

  1. A number of genes identified with the downregulated networks are associated with breast cancer.