Gene interactions and pathways from curated databases and text-mining
J Korean Med Sci 2007, PMID: 18162703

Mechanisms of epithelial-mesenchymal transition of peritoneal mesothelial cells during peritoneal dialysis.

Lee, Hi Bahl; Ha, Hunjoo

A growing body of evidence indicates that epithelial-mesenchymal transition (EMT) of human peritoneal mesothelial cells (HPMC) may play an important role in the development and progression of peritoneal fibrosis during long-term peritoneal dialysis (PD) leading to failure of peritoneal membrane function. Here, we review our own observations and those of others on the mechanisms of EMT of HPMC and suggest potential therapeutic strategies to prevent EMT and peritoneal fibrosis during long-term PD. We found that high glucose and H2O2 as well as transforming growth factor-beta1 (TGF-beta1) induced EMT in HPMC and that high glucoseinduced EMT was blocked not only by inhibition of TGF-beta1 but also by antioxidants or inhibitors of mitogen-activated protein kinases (MAPK). Since MAPKs are downstream target molecules of reactive oxygen species (ROS), these data suggest that high glucose-induced generation of ROS and subsequent MAPK activation mediate high glucose-induced EMT in HPMC. We and others also observed that bone morphogenetic protein-7 (BMP-7) prevented EMT in HPMC. Glucose degradation products (GDP) were shown to play a role in inducing EMT. Involvement of a mammalian target of rapamycin (mTOR) in TGF-beta1-induced EMT has also been proposed in cultured HPMC. A better understanding of the precise mechanisms involved in EMT of HPMC may provide new therapeutic strategies for inhibiting peritoneal fibrosis in long-term PD patients.

Diseases/Pathways annotated by Medline MESH: Fibrosis
Document information provided by NCBI PubMed

Text Mining Data

EMT ⊣ transforming growth factor-beta1: " We found that high glucose and H2O2 as well as transforming growth factor-beta1 ( TGF-beta1 ) induced EMT in HPMC and that high glucoseinduced EMT was blocked not only by inhibition of TGF-beta1 but also by antioxidants or inhibitors of mitogen activated protein kinases ( MAPK ) "

EMT → MAPK: " We found that high glucose and H2O2 as well as transforming growth factor-beta1 ( TGF-beta1 ) induced EMT in HPMC and that high glucoseinduced EMT was blocked not only by inhibition of TGF-beta1 but also by antioxidants or inhibitors of mitogen activated protein kinases ( MAPK ) "

EMT → MAPK: " Since MAPKs are downstream target molecules of reactive oxygen species ( ROS ), these data suggest that high glucose induced generation of ROS and subsequent MAPK activation mediate high glucose induced EMT in HPMC "

EMT ⊣ bone morphogenetic protein-7 (BMP-7): " We and others also observed that bone morphogenetic protein-7 (BMP-7) prevented EMT in HPMC "

EMT → TGF-beta1: " Involvement of a mammalian target of rapamycin (mTOR) in TGF-beta1 induced EMT has also been proposed in cultured HPMC "

EMT — mammalian target of rapamycin (mTOR): " Involvement of a mammalian target of rapamycin (mTOR) in TGF-beta1 induced EMT has also been proposed in cultured HPMC "

Manually curated Databases

No curated data.