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Deprecated: Implicit conversion from float 284.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Clin+Immunol 2015 ; 158 (1): 8-18 Nephropedia Template TP
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Transforming growth factor-?1 regulated phosphorylated AKT and interferon gamma expressions are associated with epithelial cell survival in rhesus macaque colon explants #MMPMID25769244
Pahar B; Pan D; Lala W; Kenway-Lynch CS; Das A
Clin Immunol 2015[May]; 158 (1): 8-18 PMID25769244show ga
Transforming growth factor-?1 (TGF-?1) is an important immunoregulatory cytokine that plays an obligate role in regulating T-cell functions. Here, we demonstrated the role of TGF-?1 in regulating the survival of intestinal epithelial cells (ECs) in rhesus colon explant cultures using either anti-TGF-?1 antibody or recombinant TGF-?1 proteins. Neutralization of endogenous TGF-?1 using anti-TGF-?1 antibodies induced apoptosis of both intestinal ECs and lamina propria (LP) cells. Additionally, endogenous TGF-?1 blocking significantly increased expression of IFN?, TNF?, CD107a and Perforin in LP cells compared to media and isotype controls. A significant decrease in pAKT expression was detected in anti-TGF-?1 MAbs treated explants compared to isotype and rTGF-?1 protein treated explants. Our results demonstrated TGF-?1 regulated pAKT and IFN? expressions were associated with epithelial cell survival in rhesus macaque colon explants and suggest a potential role of mucosal TGF-?1 in regulating intestinal homeostasis and EC integrity.