PMID- 18452227 OWN - NLM STAT- MEDLINE DCOM- 20080909 LR - 20131121 IS - 1615-9861 (Electronic) IS - 1615-9853 (Linking) VI - 8 IP - 11 DP - 2008 Jun TI - Proteomic and transcriptomic analysis for streptozotocin-induced diabetic rat pancreas in response to fungal polysaccharide treatments. PG - 2344-61 LID - 10.1002/pmic.200700779 [doi] AB - In an attempt to search for novel biomarkers for monitoring diabetes prognosis, we examined the influence of the hypoglycemic fungal extracellular polysaccharides (EPS) on the differential change in pancreatic proteome and transcriptome in streptozotocin (STZ)-induced diabetic rats using 2-DE-based protein mapping and oligonucleotide microarray analysis. The 2-DE system separated more than 2000 individual spots, demonstrating that 34 proteins out of about 500 matched spots were differentially expressed. A total of 22 overexpressed and 12 underexpressed proteins in 2-DE map were observed (p<0.05) between the healthy and diabetic rats, of which 26 spots were identified by PMF analysis. Of these, significant down regulation of carbonyl reductase (Cbr), hydroxymethylglutaryl-CoA synthase (HMGCS), and putative human mitogen-activated protein kinase activator with WD repeats-binding protein (MAWDBP) in diabetic pancreas were reported for the first time in this study. When treated with EPS, all these four proteins were reverted to normal levels. The microarray analysis revealed that 96 out of 1272 genes were down- or up-regulated in the diabetic rats and the altered transcript levels of many of these genes were reversed after EPS treatment. In particular, ROS generation in rat islets was significantly increased after STZ treatment, thereafter EPS treatment was likely to play a preventive role in beta-cell destruction mediated by STZ. Taken together, EPS may act as a potent regulator of gene expression for a wide variety of genes in diabetic rats, particularly in antioxidative stress, insulin biosynthesis, and cell proliferation. FAU - Kim, Sang Woo AU - Kim SW AD - Department of Biotechnology, Daegu University, Kyungsan, Kyungbuk, Korea. FAU - Hwang, Hye Jin AU - Hwang HJ FAU - Baek, Yu Mi AU - Baek YM FAU - Lee, Sung Hak AU - Lee SH FAU - Hwang, Hee Sun AU - Hwang HS FAU - Yun, Jong Won AU - Yun JW LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Germany TA - Proteomics JT - Proteomics JID - 101092707 RN - 0 (Antioxidants) RN - 0 (Polysaccharides) RN - 0 (Reactive Oxygen Species) RN - 5W494URQ81 (Streptozocin) SB - IM MH - Animals MH - Antioxidants/metabolism MH - Diabetes Mellitus, Experimental/*metabolism MH - *Gene Expression Regulation MH - Islets of Langerhans/cytology MH - MAP Kinase Signaling System MH - Male MH - Pancreas/*metabolism MH - Polysaccharides/*chemistry MH - Proteomics/*methods MH - Rats MH - Rats, Sprague-Dawley MH - Reactive Oxygen Species MH - Streptozocin/pharmacology MH - *Transcription, Genetic EDAT- 2008/05/03 09:00 MHDA- 2008/09/10 09:00 CRDT- 2008/05/03 09:00 PHST- 2008/05/03 09:00 [pubmed] PHST- 2008/09/10 09:00 [medline] PHST- 2008/05/03 09:00 [entrez] AID - 10.1002/pmic.200700779 [doi] PST - ppublish SO - Proteomics. 2008 Jun;8(11):2344-61. doi: 10.1002/pmic.200700779.