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01000naa a22002652 4500 |
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NLM122665236 |
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DE-627 |
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20231222195659.0 |
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231222s2002 xx ||||| 00| ||eng c |
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|a pubmed24n0409.xml
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|a (DE-627)NLM122665236
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|a (NLM)12482395
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|a DE-627
|b ger
|c DE-627
|e rakwb
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041 |
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|a eng
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100 |
1 |
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|a Nance, Christina L
|e verfasserin
|4 aut
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245 |
1 |
0 |
|a SDF-1alpha regulates HIV-1-gp120-induced changes in CD79b surface expression and Ig production in activated human B cells
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264 |
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1 |
|c 2002
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336 |
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|a Text
|b txt
|2 rdacontent
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337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
|
338 |
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|a Band
|b nc
|2 rdacarrier
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500 |
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|a Date Completed 15.01.2003
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500 |
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|a Date Revised 06.11.2019
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500 |
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|a published: Print
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500 |
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|a Citation Status MEDLINE
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520 |
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|a Binding of HIV-1 glycoprotein (gp120) to activated B cells of HIV-infected and HIV-uninfected subjects induces increased cell proliferation, cAMP generation, immunoglobulin (Ig) production and downregulation of the invariant chain, CD79b, of the B-cell receptor. We present evidence that the stromal cell-derived factor-1alpha (SDF-1alpha), itself a B-cell stimulant, reversed gp120-driven downregulation of CD79b in CD40- and IL-4-activated purified HIV-1 seronegative human peripheral blood B cells. SDF-1alpha augmented gp120-induced Ig production, downregulated CXCR4 receptor expression, and alone, exerted no effect on CD79b surface expression, reversed the gp120-induced downregulation of CD79b. These SDF-1alpha-modulated B-cell responses were specifically abrogated by an anti-SDF-1alpha antibody. These data suggest that SDF-1alpha plays an important regulatory role in the altered B-cell responses seen in HIV-1 infection. Further, these findings may enhance the understanding of the pathophysiology of HIV-1 infection and suggest a strategy utilizing SDF-1alpha or related molecules as an anti-HIV therapy
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650 |
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4 |
|a Journal Article
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650 |
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4 |
|a Research Support, Non-U.S. Gov't
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650 |
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4 |
|a Research Support, U.S. Gov't, P.H.S.
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650 |
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4 |
|a Non-programmatic
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650 |
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7 |
|a Anti-HIV Agents
|2 NLM
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650 |
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7 |
|a Antigens, CD
|2 NLM
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650 |
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7 |
|a CD79 Antigens
|2 NLM
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650 |
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7 |
|a CD79B protein, human
|2 NLM
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650 |
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7 |
|a CXCL12 protein, human
|2 NLM
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650 |
|
7 |
|a Chemokine CXCL12
|2 NLM
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650 |
|
7 |
|a Chemokines, CXC
|2 NLM
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650 |
|
7 |
|a HIV Envelope Protein gp120
|2 NLM
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650 |
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7 |
|a Immunoglobulins
|2 NLM
|
650 |
|
7 |
|a Receptors, CXCR4
|2 NLM
|
700 |
1 |
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|a Shearer, William T
|e verfasserin
|4 aut
|
773 |
0 |
8 |
|i Enthalten in
|t Clinical immunology (Orlando, Fla.)
|d 1999
|g 105(2002), 2 vom: 01. Nov., Seite 208-14
|w (DE-627)NLM098196855
|x 1521-7035
|7 nnns
|
773 |
1 |
8 |
|g volume:105
|g year:2002
|g number:2
|g day:01
|g month:11
|g pages:208-14
|
912 |
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|a GBV_USEFLAG_A
|
912 |
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|a SYSFLAG_A
|
912 |
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|a GBV_NLM
|
912 |
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|a GBV_ILN_11
|
912 |
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|a GBV_ILN_24
|
912 |
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|a GBV_ILN_350
|
951 |
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|a AR
|
952 |
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|d 105
|j 2002
|e 2
|b 01
|c 11
|h 208-14
|