نتایج جستجو برای: 7r α
تعداد نتایج: 165985 فیلتر نتایج به سال:
Results are given of a reanalysis of some data from a Bevatron experiment on the decay modes Kl i-++ +-? +-r 7r, rp v, 7~ e v, andp ~1.
Combination therapy with α-CTLA-4 and α-PD-1 has shown significant clinical responses in different types of cancer. However, the underlying mechanisms remain elusive. Here, combining detailed analysis of human tumour samples with preclinical tumour models, we report that concomitant blockade of CTLA-4 and PD-1 improves anti-tumour immune responses and synergistically eradicates tumour. Mechanis...
Notch signaling is critical for T cell development of multipotent hemopoietic progenitors. Yet, how Notch regulates T cell fate specification during early thymopoiesis remains unclear. In this study, we have identified an early subset of CD34high c-kit+ flt3+ IL-7Ralpha+ cells in the human postnatal thymus, which includes primitive progenitors with combined lymphomyeloid potential. To assess th...
IL-17-producing CD4(+) T (Th17) cells, along with IFN-γ-expressing Th1 cells, represent two major pathogenic T cell subsets in experimental autoimmune encephalomyelitis (EAE), the animal model of multiple sclerosis (MS). The cytokines and transcription factors involved in the development and effector functions of Th1 and Th17 cells have been largely characterized. Among them, IL-23 is essential...
Multi-drug resistance (MDR), an unfavorable factor compromising treatment efficacy of anticancer drugs, involves upregulated ATP binding cassette (ABC) transporters and activated Sonic hedgehog (Shh) signaling. By preparing human breast cancer MCF-7 cells resistant to doxorubicin (DOX), we examined the effect and mechanism of norcantharidin (NCTD), a small-molecule synthetic compound, on revers...
The purposes of this study were to examine the biologic effects of the engagement of the interleukin-7 receptor (IL-7R) with recombinant human interleukin-7 (rhIL-7) in immunophenotypically distinct T-lineage acute lymphoblastic leukemia (ALL) blasts and to elucidate the biochemical nature of the IL-7R-linked transmembrane signal in rhIL-7-responsive T-lineage ALL blast populations. In the abse...
Defects in the interleukin (IL)-7 signal transduction pathway lead to severe immunodeficiency in humans and in mice. In IL-7 receptor-deficient (IL-7R-/-) mice, lymphoid precursors show a reduced survival rate and variable/diversity/joining region V(D)J recombination is variously affected in different loci, being arrested in the T cell receptor (TCR)-gamma locus, aberrant in the immunoglobulin ...
به نظر می رسد که فاکتور های ژنتیکی مستعد کننده به بیماری بهجت در پیشرفت بیماری نقش مهمی دارند. سطح سرمی فاکتور نکروز کننده¬ی توموری (tnf) در بیماران مبتلا به بهجت بالا می¬رود و پاسخ مثبت افراد بیمار به درمان آنتی بادی tnf-α نشان دهنده¬ی نقش tnf در بیماری بهجت است. در این مطالعه توزیع دو تا از پلی¬مورفیسم¬های ناحیه¬ی پروموتوری ژن tnf-α (tnf-α -1031t/c & tnf-α -308g/a) در 53 فرد بیمار و 79 فرد ک...
The title compound, C(38)H(50)O(5) {systematic name: 10-(3-hy-droxy-benzo-yl)-2,2,7,7-tetra-methyl-3,6,8-tris-(3-methyl-but-2-en-yl)-3,4,4a,5,6,7-hexa-hydro-4a,8-methano-2H-cyclo-octa-[b]pyran-9,11(8H)-dione}, is a polyisoprenylated benzophenone, isolated for the first time from the fruits of Garcinia indica during our investigation of bioactive compounds from this plant and their large-scale e...
If this is the case, the two VO-particles which decay according to (I)' and (2)' turn out to be the same kind of particles. We assume that the latter possibility is right and further we propose a possible model in which a VO-particle is nothing but an excited state of a 1zucleon, Tllis excited state, we assume, is a consequence if a new kind if quantization oj a n.ucleon which is surrounded by ...
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