کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6161986 | 1249381 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ribonucleases 6 and 7 have antimicrobial function in the human and murine urinary tract
ترجمه فارسی عنوان
ریبونوکلئاز 6 و 7 عملکرد ضد میکروبی در دستگاه ادراری انسان و چربی دارند
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کلمات کلیدی
پپتید ضد میکروبی سیستیت، پیلونفریت، ریبونوکلئاز، عفونت مجاری ادراری،
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
بیماریهای کلیوی
چکیده انگلیسی
Recent evidence suggests antimicrobial peptides protect the urinary tract from infection. Ribonuclease 7 (RNase 7), a member of the RNase A superfamily, is a potent epithelial-derived protein that maintains human urinary tract sterility. RNase 7 expression is restricted to primates, limiting evaluation of its antimicrobial activity in vivo. Here we identified ribonuclease 6 (RNase 6) as the RNase A superfamily member present in humans and mice that is most conserved at the amino acid level relative to RNase 7. Like RNase 7, recombinant human and murine RNase 6 has potent antimicrobial activity against uropathogens. Quantitative real-time PCR and immunoblot analysis indicate that RNase 6 mRNA and protein are upregulated in the human and murine urinary tract during infection. Immunostaining located RNase 6 to resident and infiltrating monocytes, macrophages, and neutrophils. Uropathogenic E. coli induces RNase 6 peptide expression in human CD14+ monocytes and murine bone marrow-derived macrophages. Thus, RNase 6 is an inducible, myeloid-derived protein with markedly different expression from the epithelial-derived RNase 7 but with equally potent antimicrobial activity. Our studies suggest RNase 6 serves as an evolutionarily conserved antimicrobial peptide that participates in the maintenance of urinary tract sterility.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Kidney International - Volume 87, Issue 1, January 2015, Pages 151-161
Journal: Kidney International - Volume 87, Issue 1, January 2015, Pages 151-161
نویسندگان
Brian Becknell, Tad E. Eichler, Susana Beceiro, Birong Li, Robert S. Easterling, Ashley R. Carpenter, Cindy L. James, Kirk M. McHugh, David S. Hains, Santiago Partida-Sanchez, John D. Spencer,