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CyclosporineA augments endoplasmic reticulum stress markers and expression of matrix protein mRNA
S R Rao1, R Subbarayan2, D M Girija3
1Department of Periodontology and Implantology, Faculty of Dental Sciences & Centre for Regenerative Medicine and Stem Cell Research, Sri Ramachandra University, Chennai, India.
Abstract:
Cyclosporine-A induces gingival overgrowth with disturbance in the homeostasis of cells and connective tissue proteins. Human gingival fibroblasts were cultured with cyclosporine A, and the expression of two vital endoplasmic stress markers and two prime matrix proteins (connective tissue growth factor (CTGF and periostin) were assessed by RT-PCR. We found that expression of Glucose-Regulated Protein 78 (GRP78/BIP) and CCAAT/enhancer binding protein, C/EBP homologous protein (CHOP) were significantly increased, along with CTGF and periostin, suggesting a role for these factors in gingival overgrowth.
