PMID- 19482026 OWN - NLM STAT- MEDLINE DCOM- 20090915 LR - 20181201 IS - 1528-0012 (Electronic) IS - 0016-5085 (Linking) VI - 137 IP - 3 DP - 2009 Sep TI - Glucagon-like peptide-2 increases intestinal lipid absorption and chylomicron production via CD36. PG - 997-1005, 1005.e1-4 LID - 10.1053/j.gastro.2009.05.051 [doi] AB - BACKGROUND & AIMS: Excessive postprandial lipemia is a prevalent condition that results from intestinal oversecretion of apolipoprotein B48 (apoB48)-containing lipoproteins. Glucagon-like peptide-2 (GLP-2) is a gastrointestinal-derived intestinotropic hormone that links nutrient absorption to intestinal structure and function. We investigated the effects of GLP-2 on intestinal lipid absorption and lipoprotein production. METHODS: Intestinal lipid absorption and chylomicron production were quantified in hamsters, wild-type mice, and Cd36(-/-) mice infused with exogenous GLP-2. Newly synthesized apoB48 was metabolically labelled in primary hamster jejunal fragments. Fatty acid absorption was measured, and putative fatty acid transporters were assessed by immunoblotting. RESULTS: Human GLP-2 increased secretion of the triglyceride (TG)-rich lipoprotein (TRL)-apoB48 following oral administration of olive oil to hamsters; TRL and cholesterol mass each increased 3-fold. Fast protein liquid chromatography profiling indicated that GLP-2 stimulated secretion of chylomicron/very low-density lipoprotein-sized particles. Moreover, GLP-2 directly stimulated apoB48 secretion in jejunal fragments cultured ex vivo, increased expression of fully glycosylated cluster of differentiation 36/fatty acid translocase (CD36), and induced intestinal absorption of [(3)H]triolein. The ability of GLP-2 to increase intestinal lipoprotein production was lost in Cd36(-/-) mice. CONCLUSIONS: GLP-2 stimulates intestinal apoB48-containing lipoprotein secretion, possibly through increased lipid uptake, via a pathway that requires CD36. These findings suggest that GLP-2 represents a nutrient-dependent signal that regulates intestinal lipid absorption and the assembly and secretion of TRLs from intestinal enterocytes. FAU - Hsieh, Joanne AU - Hsieh J AD - Molecular Structure and Function, Hospital for Sick Children, Toronto, Ontario, Canada. FAU - Longuet, Christine AU - Longuet C FAU - Maida, Adriano AU - Maida A FAU - Bahrami, Jasmine AU - Bahrami J FAU - Xu, Elaine AU - Xu E FAU - Baker, Christopher L AU - Baker CL FAU - Brubaker, Patricia L AU - Brubaker PL FAU - Drucker, Daniel J AU - Drucker DJ FAU - Adeli, Khosrow AU - Adeli K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090529 PL - United States TA - Gastroenterology JT - Gastroenterology JID - 0374630 RN - 0 (Apolipoprotein B-48) RN - 0 (CD36 Antigens) RN - 0 (Chylomicrons) RN - 0 (Dietary Fats, Unsaturated) RN - 0 (Fatty Acid Transport Proteins) RN - 0 (Fatty Acids) RN - 0 (Glucagon-Like Peptide 2) RN - 0 (Lipoproteins) RN - 0 (Triglycerides) RN - 0 (lipoprotein triglyceride) RN - 122-32-7 (Triolein) SB - IM CIN - Gastroenterology. 2009 Sep;137(3):775-8. PMID: 19643192 MH - Animals MH - Apolipoprotein B-48/blood/metabolism MH - CD36 Antigens/metabolism MH - Chylomicrons/*metabolism MH - Cricetinae MH - Dietary Fats, Unsaturated/administration & dosage MH - Fatty Acid Transport Proteins/metabolism MH - Fatty Acids/metabolism MH - Glucagon-Like Peptide 2/pharmacology/*physiology MH - Intestinal Absorption/drug effects/*physiology MH - Jejunum/*metabolism MH - *Lipid Metabolism MH - Lipoproteins/chemistry/*metabolism MH - Male MH - Mesocricetus MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Triglycerides/chemistry/*metabolism MH - Triolein/metabolism EDAT- 2009/06/02 09:00 MHDA- 2009/09/16 06:00 CRDT- 2009/06/02 09:00 PHST- 2008/09/17 00:00 [received] PHST- 2009/05/13 00:00 [revised] PHST- 2009/05/20 00:00 [accepted] PHST- 2009/06/02 09:00 [entrez] PHST- 2009/06/02 09:00 [pubmed] PHST- 2009/09/16 06:00 [medline] AID - S0016-5085(09)00868-3 [pii] AID - 10.1053/j.gastro.2009.05.051 [doi] PST - ppublish SO - Gastroenterology. 2009 Sep;137(3):997-1005, 1005.e1-4. doi: 10.1053/j.gastro.2009.05.051. Epub 2009 May 29.