It is now widely accepted that lysophospholipids (LPLs), a product of the phospholipase A reaction, function as mediators through G-protein-coupled receptors. Notably, recent studies of lysophosphatidic acid (LPA) and sphingosine 1-phosphate (S1P) have revealed their essential roles in vivo. On the other hand, other LPLs such as lysophosphatidylserine (LPS), lysophosphatidylthreonine (LPT), lysophosphatidylethanolamine (LPE), lysophosphatidylinositol (LPI) and lysophosphatidylglycerol (LPG) have been reported to show lipid mediator-like responses both in vivo (LPS and LPT) and in vitro (LPS, LPT, LPE and LPG), while very little is known about their receptor, synthetic enzyme and patho-physiological roles. In this review, we summarize the actions of these LPLs as lipid mediators including LPS, LPT, LPE and LPG.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.prostaglandins.2009.04.009 | DOI Listing |
Int J Surg
December 2024
The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China.
Background: This study aims to assess the comparative effectiveness and safety of robotic-assisted surgery (RAS), laparoscopy (LPS), and laparotomy (LPT) in improving perioperative indicators, lymph node dissection, and tumor survival outcomes in patients with Endometrial carcinoma (EC) through a systematic review and network meta-analysis.
Materials And Methods: We searched China National Knowledge Infrastructure, Wanfang, WeiPu, China Biology Medicine Disc, Embase, PubMed, Web of Science, and the Cochrane Library for randomized controlled trials (RCTs) and Cohort studies (CSs) involving RAS, LPS and LPT in individuals with EC. The network meta-analysis employed a Bayesian framework to integrate direct and indirect evidence, calculating Odds Ratios (OR) and Mean Difference (MD).
Elife
October 2024
Department of Physics, Freie Universität Berlin, Berlin, Germany.
Lipopolysaccharides (LPS) confer resistance against harsh conditions, including antibiotics, in Gram-negative bacteria. The lipopolysaccharide transport (Lpt) complex, consisting of seven proteins (A-G), exports LPS across the cellular envelope. LptBFG forms an ATP-binding cassette transporter that transfers LPS to LptC.
View Article and Find Full Text PDFAnnu Rev Microbiol
November 2024
Department of Chemistry and Singapore Center for Environmental Life Sciences Engineering, National University of Singapore, Singapore; email:
Biochemistry
October 2024
Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States.
Nonvesicular lipid trafficking pathways are an important process in every domain of life. The mechanisms of these processes are poorly understood in part due to the difficulty in kinetic characterization. One important class of glycolipids, lipopolysaccharides (LPS), are the primary lipidic component of the outer membrane of Gram-negative bacteria.
View Article and Find Full Text PDFJ Microbiol
April 2024
Infectious Diseases Therapeutic Research Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, Republic of Korea.
Lipopolysaccharide (LPS) is a critical component of the extracellular leaflet within the bacterial outer membrane, forming an effective physical barrier against environmental threats in Gram-negative bacteria. After LPS is synthesized and matured in the bacterial cytoplasm and the inner membrane (IM), LPS is inserted into the outer membrane (OM) through the ATP-driven LPS transport (Lpt) pathway, which is an energy-intensive process. A trans-envelope complex that contains seven Lpt proteins (LptA-LptG) is crucial for extracting LPS from the IM and transporting it across the periplasm to the OM.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!