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Joining chain-expre...
Joining chain-expressing and -nonexpressing B cell populations in the mouse
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Erlandsson, Lena (författare)
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Akerblad, Peter (författare)
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Vingsbo-Lundberg, C (författare)
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- Källberg, Eva (författare)
- Lund University,Lunds universitet,Immunologi,Forskargrupper vid Lunds universitet,Immunology,Lund University Research Groups
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Lycke, Nils (författare)
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Leanderson, Tomas (författare)
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(creator_code:org_t)
- 2001-08-27
- 2001
- Engelska.
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Ingår i: Journal of Experimental Medicine. - : Rockefeller University Press. - 1540-9538 .- 0022-1007. ; 194:5, s. 557-570
- Relaterad länk:
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http://dx.doi.org/10...
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http://jem.rupress.o...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The diphtheria toxin A chain (DTA) was gene targeted into the Joining chain (J chain) locus to create a mouse strain selecting against J chain-expressing cells, JDTA mice. Serum immunoglobulin (Ig)M and serum IgG were reduced six to eightfold, while serum IgA was elevated 14-fold in these mice. JDTA mice were immune competent although the serum Ig response compared with wild-type mice was reduced sixfold at day 14 but only fourfold at day 45 after immunization. Exchanging the DTA gene with a cDNA for c-myc resulted in mice with a distinct phenotype with increased Ig production and enhanced humoral immune responses. Analysis of single B cells stimulated by lipopolysaccharide in vitro using reverse transcription-polymerase chain reaction showed that J chain-nonexpressing B cells could be detected that had a secretory phenotype as determined by an abundance of transcript for secretory IgM. Finally, limiting dilution analysis of peripheral B cells showed that J chain expression was a clonal property already established in naive, peripheral B lymphocytes.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Immunologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Immunology in the medical area (hsv//eng)
Nyckelord
- B cells
- plasma cells
- mice
- ES cells
- J chain
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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