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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
5
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pubmed:dateCreated |
2005-3-8
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pubmed:abstractText |
Clinical trials have indicated that autologous hematopoietic stem cell transplantation (HSCT) can persistently suppress inflammatory disease activity in a subset of patients with severe multiple sclerosis (MS), but the mechanism has remained unclear. To understand whether the beneficial effects on the course of disease are mediated by lympho-depletive effects alone or are sustained by a regeneration of the immune repertoire, we examined the long-term immune reconstitution in patients with MS who received HSCT. After numeric recovery of leukocytes, at 2-yr follow-up there was on average a doubling of the frequency of naive CD4(+) T cells at the expense of memory T cells. Phenotypic and T cell receptor excision circle (TREC) analysis confirmed a recent thymic origin of the expanded naive T cell subset. Analysis of the T cell receptor repertoire showed the reconstitution of an overall broader clonal diversity and an extensive renewal of clonal specificities compared with pretherapy. These data are the first to demonstrate that long-term suppression of inflammatory activity in MS patients who received HSCT does not depend on persisting lymphopenia and is associated with profound qualitative immunological changes that demonstrate a de novo regeneration of the T cell compartment.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-10397252,
http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-10626895,
http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-10866444,
http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-10925249,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-11445629,
http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-11806976,
http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-11880642,
http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-11901204,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-11994456,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-8176227,
http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-8483950,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/15738052-9872319
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
|
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0022-1007
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pubmed:author |
pubmed-author:BurtRichard KRK,
pubmed-author:CampbellCatherineC,
pubmed-author:Cassiani-IngoniRiccardoR,
pubmed-author:ChungKatherineK,
pubmed-author:DouekDaniel CDC,
pubmed-author:GressRonald ERE,
pubmed-author:GuenagaFrancisco JFJ,
pubmed-author:HakimFrances TFT,
pubmed-author:MartinRolandR,
pubmed-author:McFarlandHenry FHF,
pubmed-author:MemonSarfrazS,
pubmed-author:MuraroPaolo APA,
pubmed-author:NagleJames WJW,
pubmed-author:PackerAmyA
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pubmed:issnType |
Print
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pubmed:day |
7
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pubmed:volume |
201
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
805-16
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
pubmed-meshheading:15738052-Humans,
pubmed-meshheading:15738052-Follow-Up Studies,
pubmed-meshheading:15738052-Leukocytes,
pubmed-meshheading:15738052-Multiple Sclerosis,
pubmed-meshheading:15738052-Thymus Gland,
pubmed-meshheading:15738052-Female,
pubmed-meshheading:15738052-Male,
pubmed-meshheading:15738052-Treatment Outcome,
pubmed-meshheading:15738052-Adult,
pubmed-meshheading:15738052-Middle Aged,
pubmed-meshheading:15738052-Amino Acid Sequence,
pubmed-meshheading:15738052-Transplantation, Autologous
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