نتایج جستجو برای: cr3

تعداد نتایج: 1222  

Journal: :حفاظت گیاهان 0
بشارت بشارت ذکایی ذکایی

abstract in the present research the effect of different concentrations of cr3+ on growth and uptake of chromium by mycelium of agaricus bisporus was investigated. chromium playes an important role in improvment of insulin action in diabetic patients. the aim of this research was to investingate tolerance threshold of the fungus to cr3+ concentrations. mycelium of a. bisporus was cultured in so...

1999
Gordon D. Ross Yu Xia Václav Vetvicka Jun Yan Margareta Hanikýrová Václav Větvička Margareta Hanikýřová Tanya Mayadas

Mouse leukocyte CR3 (Mac-1, aMb2 integrin) was shown to function as a receptor for b-glucans in the same way as human CR3. Soluble zymosan polysaccharide (SZP) or pure b-glucans labeled with FITC or I bound in a saturable and reversible manner to neutrophils, macrophages, and NK cells. This lectin activity was blocked by anti-CD11b mAb M1/70 or 5C6 and did not occur with leukocytes from CR3 (CD...

Journal: :Journal of immunology 2010
Sarika Agarwal Sanjay Ram Jutamas Ngampasutadol Sunita Gulati Peter F Zipfel Peter A Rice

Neisseria gonorrhoeae can engage human complement receptor 3 (CR3) directly or through surface-bound iC3b. Factor H (fH) that binds to bacteria facilitates conversion of C3b to iC3b. fH also binds directly to CR3 on professional phagocytes. Certain nonprofessional phagocytes, such as primary cervical epithelial cells, also express CR3. We hypothesized that fH could bridge bacteria to CR3 and fa...

Journal: :Optics express 2010
Lei Wang Xia Zhang Zhendong Hao Yongshi Luo Xiao-jun Wang Jiahua Zhang

Triply doped Y3Al5O12: Ce3+, Pr3+, Cr3+ phosphors are prepared by solid state reaction. The emission spectra are enriched in the red region with the luminescence of both Pr3+ and Cr3+ through Ce3+ → Cr3+ and Ce3+ → Pr3+ → Cr3+ energy transfers. The properties of photoluminescence and fluorescence decay indicates larger macroscopic Ce3+ → Cr3+ transfer rates in the triply doped phosphors in comp...

Journal: :The Journal of Cell Biology 1987
P A Detmers S D Wright E Olsen B Kimball Z A Cohn

C3bi receptors (CR3) on human polymorphonuclear leukocytes (PMN) bind ligand-coated particles and promote their ingestion. The binding activity of CR3 is not constitutive but is transiently enabled by phorbol esters (Wright, S. D., and B. D. Meyer, 1986, J. Immunol. 136:1759-1764). Our observations indicate that the capacity of CR3 to bind ligand is tightly correlated with the degree of ligand-...

Journal: :Arteriosclerosis, thrombosis, and vascular biology 2011
Whitney Sealls Brent A Penque Jeffrey S Elmendorf

OBJECTIVE Trivalent chromium (Cr3+) is an essential micronutrient. Findings since the 1950s suggest that Cr3+ might benefit cholesterol homeostasis. Here we present mechanistic evidence in support of this role of Cr3+. METHODS AND RESULTS High-density lipoprotein cholesterol generation in 3T3-L1 adipocytes, which are rendered ineffective by the hyperinsulinemia that is known to accompany diso...

Journal: :The Journal of Experimental Medicine 1989
S D Wright S M Levin M T Jong Z Chad L G Kabbash

Polymorphonuclear leukocytes (PMN) from three patients deficient in the CD18 family of receptors (LFA-1, CR3, and p150,95) exhibited an inability to bind erythrocytes coated with C3bi or bacterial LPS. These observations confirm that the CD18 family, and CR3 in particular, can bind the structurally dissimilar molecules C3bi and LPS. Further studies showed that LPS and C3bi bind to CR3 at distin...

Journal: :Journal of medical microbiology 2008
Helena Bujdáková Ema Paulovicová Silvia Borecká-Melkusová Juraj Gasperík Sona Kucharíková Anna Kolecka Claudia Lell Dorthe B Jensen Reinhard Würzner Dusan Chorvát Iva Pichová

The Candida antigen CR3-RP (complement receptor 3-related protein) is supposed to be a 'mimicry' protein because of its ability to bind antibody directed against the alpha subunit of the mammalian CR3 (CD11b/CD18). This study aimed to (i) investigate the specific humoral isotypic response to immunization with CR3-RP in vivo in a rabbit animal model, and (ii) determine the role of CR3-RP in the ...

2013
Kelly L. Hawley Itziar Martín-Ruiz Juan M. Iglesias-Pedraz Brent Berwin Juan Anguita

Phagocytosis of Borrelia burgdorferi, the causative agent of Lyme disease, is mediated partly by the interaction of the spirochete with Complement Receptor (CR) 3. CR3 requires the GPI-anchored protein, CD14, in order to efficiently internalize CR3-B. burgdorferi complexes. GPI-anchored proteins reside in cholesterol-rich membrane microdomains, and through its interaction with partner proteins,...

Journal: :Journal of virology 1998
A C Ström P Ohlsson G Akusjärvi

We have previously shown that the nonconserved carboxy-terminal exon of the adenovirus type 2 E1A-289R protein contains two interchangeable sequence elements, auxiliary region (AR) 1 and AR2, that are required for efficient CR3-mediated transcriptional activation of the viral E4 promoter (M. Bondesson, C. Svensson, S. Linder, and G. Akusjärvi, EMBO J. 11:3347-3354, 1992). Here we show that CR3-...

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