{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T02:27:19Z","timestamp":1790130439529,"version":"4.0.1"},"reference-count":46,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ATVB"],"published-print":{"date-parts":[[1999,1]]},"abstract":"<jats:p><jats:italic>Abstract<\/jats:italic>\u2014Modification of low density lipoprotein (LDL), eg, by oxidation, has been proposed as being important for the formation of foam cells and therefore for the development of atherosclerotic plaques. There are a number of reports showing that macrophage-derived foam cells can proliferate in both human and animal lesions, particularly in the early phase of the disease and possibly involving macrophage-colony stimulating factor (M-CSF, or CSF-1). We studied the in vitro effects of oxidized LDL (ox-LDL) on murine bone marrow\u2013derived macrophages (BMMs), a cell population with a high proliferative capacity in vitro in response to CSF-1 and a dependence for survival on the presence of this growth factor. We report here that treatment of BMMs with low doses of ox-LDL, but not with native LDL, led to cell survival, DNA synthesis, and an enhanced response to the proliferative actions of CSF-1 and granulocyte macrophage-CSF (GM-CSF); the effects were dependent on the degree of LDL oxidation. For CSF-1, a synergistic effect was noticeable at suboptimal doses. The effect of ox-LDL occurred even in the absence of endogenous CSF-1 or GM-CSF. Our findings suggest that ox-LDL, and possibly other modified forms of LDL, could maintain macrophage (and foam cell) survival and therefore lengthen their tenure in a plaque; the modified LDL could also cause local macrophage proliferation or \u201cprime\u201d them so that they could proliferate better in response to CSF-1 (and GM-CSF) concentrations that may be present in the atheroma.<\/jats:p>","DOI":"10.1161\/01.atv.19.1.98","type":"journal-article","created":{"date-parts":[[2011,6,17]],"date-time":"2011-06-17T19:44:19Z","timestamp":1308339859000},"page":"98-105","source":"Crossref","is-referenced-by-count":104,"title":["Oxidized LDL Can Induce Macrophage Survival, DNA Synthesis, and Enhanced Proliferative Response to CSF-1 and GM-CSF"],"prefix":"10.1161","volume":"19","author":[{"given":"John A.","family":"Hamilton","sequence":"first","affiliation":[{"name":"From the Inflammation Research Centre, University of Melbourne, The Royal Melbourne Hospital, Parkville (J.A.H., D.M., F.C., R.B., G.W., S.M.), and the Heart Research Institute, Camperdown (W.J.), Australia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Damian","family":"Myers","sequence":"additional","affiliation":[{"name":"From the Inflammation Research Centre, University of Melbourne, The Royal Melbourne Hospital, Parkville (J.A.H., D.M., F.C., R.B., G.W., S.M.), and the Heart Research Institute, Camperdown (W.J.), Australia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wendy","family":"Jessup","sequence":"additional","affiliation":[{"name":"From the Inflammation Research Centre, University of Melbourne, The Royal Melbourne Hospital, Parkville (J.A.H., D.M., F.C., R.B., G.W., S.M.), and the Heart Research Institute, Camperdown (W.J.), Australia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fiona","family":"Cochrane","sequence":"additional","affiliation":[{"name":"From the Inflammation Research Centre, University of Melbourne, The Royal Melbourne Hospital, Parkville (J.A.H., D.M., F.C., R.B., G.W., S.M.), and the Heart Research Institute, Camperdown (W.J.), Australia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert","family":"Byrne","sequence":"additional","affiliation":[{"name":"From the Inflammation Research Centre, University of Melbourne, The Royal Melbourne Hospital, Parkville (J.A.H., D.M., F.C., R.B., G.W., S.M.), and the Heart Research Institute, Camperdown (W.J.), Australia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Genevieve","family":"Whitty","sequence":"additional","affiliation":[{"name":"From the Inflammation Research Centre, University of Melbourne, The Royal Melbourne Hospital, Parkville (J.A.H., D.M., F.C., R.B., G.W., S.M.), and the Heart Research Institute, Camperdown (W.J.), Australia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suzanne","family":"Moss","sequence":"additional","affiliation":[{"name":"From the Inflammation Research 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