T-lymphocyte


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T-lymphocyte

n
(Biochemistry) a type of lymphocyte that matures in the thymus gland and has an important role in the immune response. There are several subclasses: killer T-cells are responsible for killing cells that are infected by a virus; helper T-cells induce other cells (B-lymphocytes) to produce antibodies. Also called: T-cell
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The Phase 1 study is a dose finding study of BI 765063, a myeloid checkpoint inhibitor, administered as a single agent and in combination with Boehringer Ingelheim's monoclonal antibody PD-1 antagonist BI 754091, a T-lymphocyte checkpoint inhibitor.
For this project to be feasible, we have established an HLA genotyped cell bank containing blood mononuclear cells from 1000 healthy donors and the culture conditions needed to study the origin of drug- and drug metabolite-specific T-lymphocyte responses.
Adenosine deaminase levels (ADA) are used as marker of cell mediated immunity, especially the ADA levels are markers of T-lymphocyte activation.
In particular, the tumor-infiltrating T-lymphocyte sub-types have a key role in cellular proliferation and metastases, in particular, in the tissue undergoing malignant transformation by playing a role in cellular viability and cytokine production (21).
To the Editor: Regulatory T-cells (Tregs), a subset of CD4+ T-cells, have the capacity to actively suppress immune responses and play a pivotal role in sepsis-induced immunosuppression.[1] B- and T-lymphocyte attenuator (BTLA) is a co-inhibitory receptor that is known to potently inhibit CD4+ T-cell function and to block prosurvival signaling in CD4+ T-cells.[2] Tregs constitutively express BTLA.
Analyses of breeds and litter effect on routine blood traits and T-lymphocyte subpopulation traits in piglets.
Specifically, rheumatic and musculoskeletal adverse events were far less common with the cytotoxic T-lymphocyte antigen 4 checkpoint inhibitor ipilimumab (Yervoy) relative to programmed cell death protein 1 inhibitors, particularly nivolumab (Opdivo).
Serum sCTLA-4 levels in patients with AS and RA and in the control group Ankylosing spondylitis Rheumatoid arthritis sCTLA-4 Median 0.22 0.04 IQR (*) 0.09 0.01 p(AS-RA)<0.001; p(AS-Control)<0.001; p (RA-Control)>0.05 Control group p sCTLA-4 0.04 <0.001 0.03 p(AS-RA)<0.001; p(AS-Control)<0.001; p (RA-Control)>0.05 Kruskal-Wallis test (post-hoc test: Bonferonni-corrected Mann-Whitney U Test, [alpha] = 0.017) sCTLA-4: soluble Cytotoxic T-Lymphocyte Associated Antigen-4; AS: ankylosing spondylitis; RA: rheumatoid arthritis; IQR: interquartile rang Table 3.
Immunohistochemical stain for CD3, a T-lymphocyte marker, was performed on sections of the cervical mass, proventricular serosal masses, and spleen.
(22-24) Although a minimum dose of 15 Gy causes DNA breakage and prevents T-lymphocyte proliferation, in the United States the recommendation for transfusion practice is that the center of a component bag should receive 25 Gy (versus 50 Gy in some countries), and any other area outside the bag center should receive a minimum of 15 Gy (versus 25 Gy in some countries).
A fibrobronchoscopy was also performed revealing small and round leveduriform structures with morphological characteristics consistent with Histoplasma in a patient with CD4 T-lymphocyte count of 77/m[m.sup.3].
Monoclonal antibodies targeting the cytotoxic T-lymphocyte antigen 4 (CTLA4) and programmed death-1 (PD-1) pathways inhibit downregulation of the immune system, thereby allowing an enhanced T-cell immune response.