Sökning: onr:"swepub:oai:DiVA.org:mau-5371" >
TAP1-Deficiency Doe...
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Kolbus, DanielLund University,Lunds universitet,Kardiovaskulär forskning - immunitet och ateroskleros,Forskargrupper vid Lunds universitet,Cardiovascular Research - Immunity and Atherosclerosis,Lund University Research Groups
(författare)
TAP1-Deficiency Does Not Alter Atherosclerosis Development in Apoe−/− Mice
- Artikel/kapitelEngelska2012
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2012-03-30
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Public Library of Science,2012
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electronicrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:mau-5371
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https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-5371URI
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https://doi.org/10.1371/journal.pone.0033932DOI
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https://lup.lub.lu.se/record/2519755URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Antigen presenting cells (APC) have the ability to present both extra-cellular and intra-cellular antigens via MHC class I molecules to CD8+ T cells. The cross presentation of extra-cellular antigens is reduced in mice with deficient Antigen Peptide Transporter 1 (TAP1)-dependent MHC class I antigen presentation, and these mice are characterized by a diminished CD8+ T cell population. We have recently reported an increased activation of CD8+ T cells in hypercholesterolemic Apoe−/− mice. Therefore, this study included TAP1-deficient Apoe−/− mice (Apoe−/−Tap1−/−) to test the atherogenicity of CD8+ T cells and TAP1-dependent cross presentation in a hypercholesterolemic environment. As expected the CD8+ T cell numbers were low in Apoe−/−Tap1−/− mice in comparison to Apoe−/− mice, constituting ~1% of the lymphocyte population. In spite of this there were no differences in the extent of atherosclerosis as assessed by en face Oil Red O staining of the aorta and cross-sections of the aortic root between Apoe−/−Tap1−/− and Apoe−/− mice. Moreover, no differences were detected in lesion infiltration of macrophages or CD3+ T cells in Apoe−/−Tap1−/− compared to Apoe−/− mice. The CD3+CD4+ T cell fraction was increased in Apoe−/−Tap1−/− mice, suggesting a compensation for the decreased CD8+ T cell population. Interestingly, the fraction of CD8+ effector memory T cells was increased but this appeared to have little impact on the atherosclerosis development. In conclusion, Apoe−/−Tap1−/− mice develop atherosclerosis equal to Apoe−/− mice, indicating a minor role for CD8+ T cells and TAP1-dependent antigen presentation in the disease process.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Ljungcrantz, IrenaLund University,Lunds universitet,Kardiovaskulär forskning - immunitet och ateroskleros,Forskargrupper vid Lunds universitet,Cardiovascular Research - Immunity and Atherosclerosis,Lund University Research Groups(Swepub:lu)kirp-ilj
(författare)
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Söderberg, IngridLund University,Lunds universitet,Kardiovaskulär forskning - immunitet och ateroskleros,Forskargrupper vid Lunds universitet,Cardiovascular Research - Immunity and Atherosclerosis,Lund University Research Groups(Swepub:lu)medf-iso
(författare)
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Alm, RagnarLund University,Lunds universitet,Kardiovaskulär forskning - immunitet och ateroskleros,Forskargrupper vid Lunds universitet,Cardiovascular Research - Immunity and Atherosclerosis,Lund University Research Groups(Swepub:lu)medf-ral
(författare)
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Björkbacka, HarryLund University,Lunds universitet,Kardiovaskulär forskning - immunitet och ateroskleros,Forskargrupper vid Lunds universitet,Cardiovascular Research - Immunity and Atherosclerosis,Lund University Research Groups(Swepub:lu)medf-hbj
(författare)
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Nilsson, JanLund University,Lunds universitet,Kardiovaskulär forskning - immunitet och ateroskleros,Forskargrupper vid Lunds universitet,Cardiovascular Research - Immunity and Atherosclerosis,Lund University Research Groups(Swepub:lu)medf-jni
(författare)
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Nordin Fredrikson, GunillaLund University,Lunds universitet,Malmö högskola,Institutionen för biomedicinsk vetenskap (BMV),Kardiovaskulär forskning - immunitet och ateroskleros,Forskargrupper vid Lunds universitet,Cardiovascular Research - Immunity and Atherosclerosis,Lund University Research Groups(Swepub:lu)medf-gno
(författare)
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Kardiovaskulär forskning - immunitet och aterosklerosForskargrupper vid Lunds universitet
(creator_code:org_t)
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Ingår i:PLOS ONE: Public Library of Science3:71932-6203
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