title: Expression and localization of paxillin in rat pancreas during development.
abstract: OBJECTIVE
  To investigate the expression and localization of paxillin in rat pancreas during development.
  
  
  METHODS
  Pancreata from Sprague Dawley rat fetuses, embryos, young animals, and adult animals were used in this study. Expression levels of paxillin in pancreata of different development stages were detected by reverse transcription polymerase chain reaction and Western blotting. To identify the cell location of paxillin in the developing rat pancreas, immunohistochemistry and double-immunofluorescent staining were performed using antibodies for specific cell markers and paxillin, respectively.
  
  
  RESULTS
  The highest paxillin mRNA level was detected at E15.5 (embryo day 15.5) following a decrease in the later developmental periods (P < 0.05 vs E18.5, P0 and adult, respectively), and a progressively increased paxillin protein expression through the transition from E15.5 to adult was detected. The paxillin positive staining was mainly localized in rat islets of Langerhans at each stage tested during pancreas development.
  
  
  CONCLUSIONS
  The dynamic expression of paxillin in rat pancreas from different stages indicates that paxillin might be involved in some aspects of pancreatic development.
authors: Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China.
authors: Jing
authors: J
authors: Guo
authors: Li-Jie
authors: LJ
authors: Liu
authors: Li
authors: L
authors: Yuan
authors: Ning
authors: N
authors: Wang
authors: Wei
authors: W
authors: De
mesh_terms: D000818:Animals; D005260:Female; D018507:Gene Expression Regulation, Developmental; D008297:Male; D046228:Microarray Analysis; D038081:Organogenesis / Q000502:physiology; D010179:Pancreas / Q000196:embryology* / Q000254:growth & development* / Q000378:metabolism*; D051419:Paxillin / Q000235:genetics / Q000378:metabolism*; D012333:RNA, Messenger / Q000378:metabolism; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D051419:Paxillin; D012333:RNA, Messenger