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231223s2005 xx ||||| 00| ||eng c |
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|a pubmed24n0522.xml
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|a (DE-627)NLM156560453
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|a (NLM)16019263
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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100 |
1 |
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|a Yan, Sen Rong
|e verfasserin
|4 aut
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245 |
1 |
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|a Increased chemoattractant induced neutrophil oxidative burst, accelerated apoptosis, and dysregulated tyrosine phosphorylation associated with lifelong bacterial infections
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 27.10.2005
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a A boy with lifelong recurrent bacterial infection at cutaneous and mucosal sites was investigated. PMN oxidative burst to phorbol myristate acetate (PMA) and zymosan was normal but was increased 20- to 50-fold upon C5a or formyl-met-leu-phe (fMLP) chemoattractant stimulation, accompanied by accelerated PMN apoptosis. His PMNs showed increased constitutive tyrosine phosphorylation of 21-, 25-, and 44-kDa proteins, and of src-family kinases (p59(hck), p58(fgr), and p53/56(lyn)). Phosphorylation was abnormally enhanced following fMLP stimulation. Expression and activity of the major PMN tyrosine phosphatases, i.e., CD45, CD148, and SHP-1 and -2, was normal. However, dephosphorylation of phospho-p58(fgr) and phospho-p53/56(lyn) by lysates of patient's PMNs was enhanced. Thus, another phosphatase may be overactive, perhaps dephosphorylating a regulatory (inhibitory) site on a protein tyrosine kinase, accounting for the abnormal PMN tyrosine phosphorylation and function. With age (now 13 years), T-cell lymphopenia and loss of T-cell responses developed. This appears to be a unique primary immunodeficiency with abnormal PMN oxidative and apoptotic responses to chemoattractants, dysregulated protein tyrosine phosphorylation, serious bacterial infection, and T-lymphocyte attrition
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|a Case Reports
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Chemotactic Factors
|2 NLM
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|a Tyrosine
|2 NLM
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|a 42HK56048U
|2 NLM
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1 |
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|a Bortolussi, Robert
|e verfasserin
|4 aut
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1 |
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|a Issekutz, Thomas B
|e verfasserin
|4 aut
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1 |
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|a Issekutz, Andrew C
|e verfasserin
|4 aut
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773 |
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8 |
|i Enthalten in
|t Clinical immunology (Orlando, Fla.)
|d 1999
|g 117(2005), 1 vom: 15. Okt., Seite 36-47
|w (DE-627)NLM098196855
|x 1521-7035
|7 nnns
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773 |
1 |
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|g volume:117
|g year:2005
|g number:1
|g day:15
|g month:10
|g pages:36-47
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|a GBV_USEFLAG_A
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|a SYSFLAG_A
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|a GBV_NLM
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|a GBV_ILN_11
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|a GBV_ILN_24
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|a GBV_ILN_350
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|a AR
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|d 117
|j 2005
|e 1
|b 15
|c 10
|h 36-47
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