Résumé
Periostin (POSTN), an evolutionary conserved and secreted extracellular matrix protein, can be easily detected by humoral samples such as blood, urine, interstitial fluid etc., which was firstly found in bone tissues.POSTN is expressed in various tissues and its expression level is closely related to oc¬currence and development of various diseases, which will be a potential molecular marker in early diagnosis of diseases.'Hie paper systematically summarizes the relationship of the expres¬ sion level of POSTN and some diseases including myocardial in¬farction, vascular calcification, diseases related to bone metabo¬lism, chronic nephrosis and various cancers, and explores its function as well as mechanism, which provides scientific basis for the early diagnostic kits or new drug development of diseases based on POSTN.
Résumé
Apolipoprotein A-I (ApoA-I), the main protein component of high density lipoprotein (HDL) , which plays a key role in the process of reverse cholesterol transport (RCT) , is considered as an important anti-atherosclerosis (As) drug target. ApoA- I mimic peptides developed based on its a-helix, and HDL mimic peptides that developed by recombinant ApoA- I have entered clinical trials, exhibiting favorable RCT promotion and anli-As activity. The paper reviewed the advances in the structure and function of ApoA- I , the molecular interaction mechanism between ApoA-1 and ABCA1 ( ATP-binding cassette transporter Al) , LCAT (lecithin cholesterol acyl transferase) and SR-B1 (scavenger receptor class B type 1) , and anti- As activity of ApoA- I mimic peptides, which would provide references for anli-As new drug development based on ApoA- I mimic peptides.