Bone marrow-derived HL mitigates bone marrow-derived CETP-mediated decreases in HDL in mice globally deficient in HL and the LDLr
The objective of this study was to determine the combined effects of HL and cholesteryl ester transfer protein (CETP), derived exclusively from bone marrow (BM), on plasma lipids and atherosclerosis in high-fat-fed, atherosclerosis-prone mice. We transferred BM expressing these proteins into male an...
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| Format: | Article |
| Language: | English |
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Elsevier
2014-09-01
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| Series: | Journal of Lipid Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0022227520356625 |
| _version_ | 1818386370422374400 |
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| author | Neil J. Hime Audrey S. Black David J. Bonnet Linda K. Curtiss |
| author_facet | Neil J. Hime Audrey S. Black David J. Bonnet Linda K. Curtiss |
| author_sort | Neil J. Hime |
| collection | DOAJ |
| description | The objective of this study was to determine the combined effects of HL and cholesteryl ester transfer protein (CETP), derived exclusively from bone marrow (BM), on plasma lipids and atherosclerosis in high-fat-fed, atherosclerosis-prone mice. We transferred BM expressing these proteins into male and female double-knockout HL-deficient, LDL receptor-deficient mice (HL−/−LDLr−/−). Four BM chimeras were generated, where BM-derived cells expressed 1) HL but not CETP, 2) CETP and HL, 3) CETP but not HL, or 4) neither CETP nor HL. After high-fat feeding, plasma HDL-cholesterol (HDL-C) was decreased in mice with BM expressing CETP but not HL (17 ± 4 and 19 ± 3 mg/dl, female and male mice, respectively) compared with mice with BM expressing neither CETP nor HL (87 ± 3 and 95 ± 4 mg/dl, female and male mice, respectively, P < 0.001 for both sexes). In female mice, the presence of BM-derived HL mitigated this CETP-mediated decrease in HDL-C. BM-derived CETP decreased the cholesterol component of HDL particles and increased plasma cholesterol. BM-derived HL mitigated these effects of CETP. Atherosclerosis was not significantly different between BM chimeras. These results suggest that BM-derived HL mitigates the HDL-lowering, HDL-modulating, and cholesterol-raising effects of BM-derived CETP and warrant further studies to characterize the functional properties of these protein interactions. |
| first_indexed | 2024-12-14T03:52:58Z |
| format | Article |
| id | doaj.art-794706e1be84431182df5df0ed202300 |
| institution | Directory Open Access Journal |
| issn | 0022-2275 |
| language | English |
| last_indexed | 2024-12-14T03:52:58Z |
| publishDate | 2014-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Lipid Research |
| spelling | doaj.art-794706e1be84431182df5df0ed2023002022-12-21T23:18:09ZengElsevierJournal of Lipid Research0022-22752014-09-0155918641875Bone marrow-derived HL mitigates bone marrow-derived CETP-mediated decreases in HDL in mice globally deficient in HL and the LDLrNeil J. Hime0Audrey S. Black1David J. Bonnet2Linda K. Curtiss3To whom correspondence should be addressed; Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037The objective of this study was to determine the combined effects of HL and cholesteryl ester transfer protein (CETP), derived exclusively from bone marrow (BM), on plasma lipids and atherosclerosis in high-fat-fed, atherosclerosis-prone mice. We transferred BM expressing these proteins into male and female double-knockout HL-deficient, LDL receptor-deficient mice (HL−/−LDLr−/−). Four BM chimeras were generated, where BM-derived cells expressed 1) HL but not CETP, 2) CETP and HL, 3) CETP but not HL, or 4) neither CETP nor HL. After high-fat feeding, plasma HDL-cholesterol (HDL-C) was decreased in mice with BM expressing CETP but not HL (17 ± 4 and 19 ± 3 mg/dl, female and male mice, respectively) compared with mice with BM expressing neither CETP nor HL (87 ± 3 and 95 ± 4 mg/dl, female and male mice, respectively, P < 0.001 for both sexes). In female mice, the presence of BM-derived HL mitigated this CETP-mediated decrease in HDL-C. BM-derived CETP decreased the cholesterol component of HDL particles and increased plasma cholesterol. BM-derived HL mitigated these effects of CETP. Atherosclerosis was not significantly different between BM chimeras. These results suggest that BM-derived HL mitigates the HDL-lowering, HDL-modulating, and cholesterol-raising effects of BM-derived CETP and warrant further studies to characterize the functional properties of these protein interactions.http://www.sciencedirect.com/science/article/pii/S0022227520356625cholesteryl ester transfer proteinhepatic lipasehigh density lipoproteinatherosclerosischolesterollow density lipoprotein receptor |
| spellingShingle | Neil J. Hime Audrey S. Black David J. Bonnet Linda K. Curtiss Bone marrow-derived HL mitigates bone marrow-derived CETP-mediated decreases in HDL in mice globally deficient in HL and the LDLr Journal of Lipid Research cholesteryl ester transfer protein hepatic lipase high density lipoprotein atherosclerosis cholesterol low density lipoprotein receptor |
| title | Bone marrow-derived HL mitigates bone marrow-derived CETP-mediated decreases in HDL in mice globally deficient in HL and the LDLr |
| title_full | Bone marrow-derived HL mitigates bone marrow-derived CETP-mediated decreases in HDL in mice globally deficient in HL and the LDLr |
| title_fullStr | Bone marrow-derived HL mitigates bone marrow-derived CETP-mediated decreases in HDL in mice globally deficient in HL and the LDLr |
| title_full_unstemmed | Bone marrow-derived HL mitigates bone marrow-derived CETP-mediated decreases in HDL in mice globally deficient in HL and the LDLr |
| title_short | Bone marrow-derived HL mitigates bone marrow-derived CETP-mediated decreases in HDL in mice globally deficient in HL and the LDLr |
| title_sort | bone marrow derived hl mitigates bone marrow derived cetp mediated decreases in hdl in mice globally deficient in hl and the ldlr |
| topic | cholesteryl ester transfer protein hepatic lipase high density lipoprotein atherosclerosis cholesterol low density lipoprotein receptor |
| url | http://www.sciencedirect.com/science/article/pii/S0022227520356625 |
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