480,535 results match your criteria t-cell responsemethods

CD4CD25CD127 regulatory T cells associated with the effect of CD19 CAR-T therapy for relapsed/refractory B-cell acute lymphoblastic leukemia.

Int Immunopharmacol 2021 May 11;96:107742. Epub 2021 May 11.

Hematology Department, the Second Hospital of Anhui Medical University (SHAMU), Hefei, Anhui Province, China; Hematologic Diseases Research Center of Anhui Medical University, Hefei, Anhui Province, China. Electronic address:

Background: CD19-specific chimeric antigen receptor T-cell (CAR-T) therapy has shown promising clinical outcomes in relapsed/refractory acute B-cell lymphoblastic leukemia (R/R B-ALL) patients. However, some patients did not respond to this therapy or relapsed after remission. Regulatory T cells (Tregs) have shown great importance in promoting tumor escape, but little is known about their role in R/R B-ALL patients with CAR-T therapy. Read More

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FGFR1 overexpression in non-small cell lung cancer is mediated by genetic and epigenetic mechanisms and is a determinant of FGFR1 inhibitor response.

Eur J Cancer 2021 May 10;151:136-149. Epub 2021 May 10.

Dept. of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden. Electronic address:

Amplification of fibroblast growth factor receptor 1 (FGFR1) in non-small cell lung cancer (NSCLC) has been considered as an actionable drug target. However, pan-FGFR tyrosine kinase inhibitors did not demonstrate convincing clinical efficacy in FGFR1-amplified NSCLC patients. This study aimed to characterise the molecular context of FGFR1 expression and to define biomarkers predictive of FGFR1 inhibitor response. Read More

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Dual mitigation of immunosuppression combined with photothermal inhibition for highly effective primary tumor and metastases therapy.

Biomaterials 2021 May 7;274:120856. Epub 2021 May 7.

Department of Ultrasound, The Third Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, PR China. Electronic address:

T-cell based immune response can attack cancer cells formidably when certain immune checkpoint (e.g., PD-1/PD-L1) is blocked. Read More

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Canine mast cell tumour cells regulate tryptophan catabolism via the expression of indoleamine 2,3-dioxygenase.

Res Vet Sci 2021 Apr 30;137:159-162. Epub 2021 Apr 30.

Laboratory of Comparative Animal Medicine, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan.

Indoleamine 2,3-deoxygenase (IDO) produced by cancer cells catabolizes tryptophan (TRP) to kynurenine (KYN) in the environment, resulting induction of cancer immune escape through induction of T cell anergy and enhancement of regulatory T cells. Recently, inhibition of IDO has been recognized as one of therapeutic strategies for human neoplastic diseases. However, there have been few reports about IDO-expressing cancers in dogs. Read More

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Lipophilic recombinant-protein insertion endows lymphocytes with enhanced targeting-infiltration ability in EGFR positive cancer.

Cell Immunol 2021 May 5;365:104376. Epub 2021 May 5.

The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, China. Electronic address:

Adoptive T cell transfer is one of the most promising ways to combat solid tumors. However, the weak infiltration of T cells into tumor sites has restricted their antitumor efficacy. To overcome this obstacle, we used the lipophilic protein painting strategy to improve tumor targeting and penetrating capacity of lymphocytes for the first time. Read More

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PTTG1 knockdown enhances radiation-induced antitumour immunity in lung adenocarcinoma.

Life Sci 2021 May 10:119594. Epub 2021 May 10.

Department of Radiation Oncology, The Third Affiliated Hospital of Kunming Medical University/Yunnan Cancer Hospital, PR China. Electronic address:

Aim: Ionizing radiation (IR) can induce local and systemic antitumour immune responses to some degree and augment immunotherapeutic efficacy. IR may also increase residual tumour cell invasion and elicit immunosuppression in the tumour microenvironment (TME). It remains poorly understand, whether IR leads to immune negative response or invasive capacity increases in lung adenocarcinoma (LAC). Read More

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Resistance Mechanisms to Programmed Cell Death Protein 1 and Programmed Death Ligand 1 inhibitors.

Expert Opin Biol Ther 2021 May 13. Epub 2021 May 13.

Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.

Introduction: In the past few years, administrating monoclonal humanized antibodies, namely checkpoint inhibitors, against programmed cell death protein 1 (PD-1), and its ligand (PD-L1), has yielded reassuring tumor regression rates. Anti-PD-1/PD-L1 checkpoint inhibitors disrupt the engagement of PD-1 on T-cells and their ligands on tumor or other target cells and reactivate the tumor-specific T infiltrating lymphocytes (TILs), which are mostly in a state of anergy before the PD-1/PD-L1 blockade. However, a limited number of patients initially respond, and the others show a primary (innate) resistance. Read More

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Compartmentalization of cerebrospinal fluid inflammation across the spectrum of untreated HIV-1 infection, central nervous system injury and viral suppression.

PLoS One 2021 13;16(5):e0250987. Epub 2021 May 13.

Department of Neurology, University of California San Francisco, San Francisco, CA, United States of America.

Objective: To characterize the evolution of central nervous system (CNS) inflammation in HIV-1 infection applying a panel of cerebrospinal fluid (CSF) inflammatory biomarkers to grouped subjects representing a broad spectrum of systemic HIV-1 immune suppression, CNS injury and viral control.

Methods: This is a cross-sectional analysis of archived CSF and blood samples, assessing concentrations of 10 functionally diverse soluble inflammatory biomarkers by immunoassays in 143 HIV-1-infected subjects divided into 8 groups: untreated primary HIV-1 infection (PHI); four untreated groups defined by their blood CD4+ T lymphocyte counts; untreated patients presenting with subacute HIV-associated dementia (HAD); antiretroviral-treated subjects with ≥1 years of plasma viral suppression; and untreated elite controllers. Twenty HIV-1-uninfected controls were included for comparison. Read More

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Selective Nonmethylated CpG DNA Recognition Mechanism of Cysteine Clamp Domains.

J Am Chem Soc 2021 May 13. Epub 2021 May 13.

Beijing Nuclear Magnetic Resonance Center, College of Chemistry and Molecular Engineering, and School of Life Sciences, Peking University, Beijing 100871, China.

Methylation of DNA at CpG sites is a major mark for epigenetic regulation, but how transcription factors are influenced by CpG methylation is not well understood. Here, we report the molecular mechanisms of how the TCF (T-cell factor) and GEF (glucose transporter 4 enhancer factor) families of proteins selectively target unmethylated DNA sequences with a C-clamp type zinc finger domain. The structure of the C-clamp domain from human GEF family protein HDBP1 (C-clamp) in complex with DNA was determined using NMR spectroscopy, which adopts a unique zinc finger fold and selectively binds RCCGG (R = A/G) DNA sequences with an "Arg···Trp-Lys-Lys" DNA recognition motif inserted in the major groove. Read More

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Robust Antibody and T Cell Responses to SARS-CoV-2 in Patients with Antibody Deficiency.

J Clin Immunol 2021 May 13. Epub 2021 May 13.

Center for Cancer and Immunology Research, Children's Research Institute, Children's National Hospital, Washington, DC, USA.

Immunocompromised patients, including those with inborn errors of immunity (IEI), may be at increased risk for severe or prolonged infections with SARS-CoV-2 (Zhu et al. N Engl J Med. 382:727-33, 2020; Guan et al. Read More

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The role of infiltrating lymphocytes in the neo-adjuvant treatment of women with HER2-positive breast cancer.

Breast Cancer Res Treat 2021 May 13. Epub 2021 May 13.

Cancer Trials Ireland, Dublin, Ireland.

Background: Pre-treatment tumour-associated lymphocytes (TILs) and stromal lymphocytes (SLs) are independent predictive markers of future pathological complete response (pCR) in HER2-positive breast cancer. Whilst studies have correlated baseline lymphocyte levels with subsequent pCR, few have studied the impact of neoadjuvant therapy on the immune environment.

Methods: We performed TIL analysis and T-cell analysis by IHC on the pretreatment and 'On-treatment' samples from patients recruited on the Phase-II TCHL (NCT01485926) clinical trial. Read More

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Rapid T cell receptor interaction grouping with ting.

Bioinformatics 2021 May 13. Epub 2021 May 13.

Genome Informatics, Institute of Human Genetics, University of Duisburg-Essen, 45147 Essen, Germany.

Motivation: Clustering T cell receptor repertoire (TCRR) sequences according to antigen specificity is challenging. The previously published tool GLIPH needs several days to weeks for clustering large repertoires, making its use impractical in larger studies. In addition, the methodology used in GLIPH suffers from shortcomings, including non-determinism, potential loss of significant antigen-specific sequences or inclusion of too many unspecific sequences. Read More

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Immunogenicity of COVID-19 mRNA Vaccines in Pregnant and Lactating Women.

JAMA 2021 May 13. Epub 2021 May 13.

Harvard Medical School, Boston, Massachusetts.

Importance: Pregnant women are at increased risk of morbidity and mortality from COVID-19 but have been excluded from the phase 3 COVID-19 vaccine trials. Data on vaccine safety and immunogenicity in these populations are therefore limited.

Objective: To evaluate the immunogenicity of COVID-19 messenger RNA (mRNA) vaccines in pregnant and lactating women, including against emerging SARS-CoV-2 variants of concern. Read More

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Estrogen-induced hsa-miR-10b-5p is elevated in T cells from patients with systemic lupus erythematosus and downregulates splicing factor SRSF1.

Arthritis Rheumatol 2021 May 13. Epub 2021 May 13.

Division of Rheumatology and Clinical Immunology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.

Objective: Autoimmune diseases afflict women disproportionately more than men. Estrogen is implicated in immune cell dysfunction, yet its precise molecular roles are not fully known. We recently uncovered new roles for serine/arginine-rich splicing factor (SRSF)1 in T cell function and autoimmunity. Read More

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Hydroa vacciniforme-like lymphoproliferative disorder: A clinicopathological, immunohistochemical, and prognostic study of 24 cases in China.

J Dermatol 2021 May 13. Epub 2021 May 13.

Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.

Hydroa vacciniforme-like lymphoproliferative disorder (HV-LPD) is a rare cutaneous disease associated with Epstein-Barr virus infection. We retrospectively analyzed the clinical presentation, histopathological characteristics, and prognostic study of HV-LPD in 24 Chinese patients. All patients presented with recurrent papulovesicular and necrotic eruptions on the face, neck, and extremities, with 11 showing systemic symptoms. Read More

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3,4,5‑Trihydroxycinnamic acid exerts anti‑inflammatory effects on TNF‑α/IFN‑γ‑stimulated HaCaT cells.

Mol Med Rep 2021 Jul 13;24(1). Epub 2021 May 13.

Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Chungcheongbuk‑do 28116, Republic of Korea.

3,4,5‑Trihydroxycinnamic acid (THCA) exhibits anti‑inflammatory activity in acute or chronic inflammatory disorders, such as acute lung injury and asthma. The present study investigated the anti‑inflammatory activity of THCA in a tumor necrosis factor‑α/interferon‑γ (TI) mixture‑stimulated human keratinocyte cell line. The results of ELISA and reverse transcription‑quantitative PCR revealed that THCA reduced the secretion and mRNA expression levels of interleukin (IL)‑6; IL‑8; thymus and activation‑regulated chemokine; macrophage‑derived chemokine; regulated upon activation, normal T cell expressed and secreted; and monocyte chemoattractant protein‑1 in TI mixture‑stimulated HaCaT cells. Read More

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Macrophage activation syndrome in systemic juvenile idiopathic arthritis.

Masaki Shimizu

Immunol Med 2021 May 13:1-9. Epub 2021 May 13.

Department of Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.

Macrophage activation syndrome (MAS) is a severe, potentially life-threatening complication of systemic juvenile idiopathic arthritis (s-JIA). An immunological feature is the excessive activation and proliferation of T lymphocytes and macrophages. Massive hypercytokinemia is strongly associated with its pathogenesis, particularly the overproduction of interleukin (IL)-1, IL-6 and IL-18; interferon (IFN)-γ; and tumor necrosis factor (TNF)-α. Read More

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[Preventive and therapeutic effects and mechanism of Xiaoer Feike Granules on chronic bronchitis induced by lipopolysaccharide in rats].

Zhongguo Zhong Yao Za Zhi 2021 Apr;46(8):2112-2118

College of Traditional Chinese Medicine, Chongqing Medical University Chongqing 400016, China.

The aim of this paper was to investigate the preventive and therapeutic effects of Xiaoer Feike Granules(XEFK) on chronic bronchitis in rats and its mechanism. Except for 10 rats in the blank group, the remaining 50 of the 60 SD rats were used to establish a model of chronic bronchitis induced by LPS. On the 22 nd day, the model rats were randomly divided into 5 groups according to their body weight, and administrated with purified water, Keteling Capsules 0. Read More

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NMD inhibition by 5-azacytidine augments presentation of immunogenic frameshift-derived neoepitopes.

iScience 2021 Apr 1;24(4):102389. Epub 2021 Apr 1.

Molecular Medicine Partnership Unit (MMPU), Heidelberg University, 69120 Heidelberg, Germany.

Frameshifted protein sequences elicit tumor-specific T cell-mediated immune responses in microsatellite-unstable (MSI) cancers if presented by HLA class I molecules. However, their expression and presentation are limited by nonsense-mediated RNA decay (NMD). We employed an unbiased immunopeptidomics workflow to analyze MSI HCT-116 cells and identified >10,000 HLA class I-presented peptides including five frameshift-derived InDel neoepitopes. Read More

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Real-world evidence of cytomegalovirus reactivation in non-Hodgkin lymphomas treated with bendamustine-containing regimens.

Open Med (Wars) 2021 21;16(1):672-682. Epub 2021 Apr 21.

Hematology and Transplant Center, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", Salerno, 84131, Italy.

Cytomegalovirus (CMV) reactivation during chemotherapy or after organ or hematopoietic stem cell transplantation is a major cause of morbidity and mortality, and the risk of reactivation increases with patients' age. Bendamustine, an alkylating agent currently used for treatment of indolent and aggressive non-Hodgkin lymphomas, can augment the risk of secondary infections including CMV reactivation. In this real-world study, we described an increased incidence of CMV reactivation in older adults (age >60 years old) with newly diagnosed and relapsed/refractory indolent and aggressive diseases treated with bendamustine-containing regimens. Read More

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Effects of extract on learning and memory ability, brain tissue morphology, and immune function of aging mice.

Open Life Sci 2021 23;16(1):399-407. Epub 2021 Apr 23.

Department of Pharmacy, Luohe Medical College, Luohe 462000, China.

In this study, we aimed to observe the effects of (LC) extract on learning and memory ability, brain tissue morphology, and immune function of aging mice. Kunming mice were selected and randomly divided into a control group, a positive control group, an aging group, and three dose groups. Three dose groups were administered 187. Read More

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Addition of BTK inhibitor orelabrutinib to rituximab improved anti-tumor effects in B cell lymphoma.

Mol Ther Oncolytics 2021 Jun 3;21:158-170. Epub 2021 Apr 3.

Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing, China.

Bruton tyrosine kinase (BTK) inhibitor ibrutinib has been validated as an effective drug to treat B cell malignancies. Combined therapies comprising ibrutinib and anti-CD20 antibodies like rituximab were designed as a backbone in many clinical trials. However, the off-target inhibition of ibrutinib on interleukin-2 (IL-2)-inducible T cell kinase (ITK) may reduce rituximab's antibody-dependent cellular cytotoxicity (ADCC) efficacy. Read More

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Secretion of bispecific protein of anti-PD-1 fused with TGF-β trap enhances antitumor efficacy of CAR-T cell therapy.

Mol Ther Oncolytics 2021 Jun 2;21:144-157. Epub 2021 Apr 2.

Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, USA.

Despite the remarkable success of chimeric antigen receptor-modified T (CAR-T) cell therapy for blood malignancies, the clinical efficacy of this novel therapy in solid tumor treatment is largely limited by the immunosuppressive tumor microenvironment (TME). For instance, immune checkpoints (e.g. Read More

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IL-6 Promotes the Proliferation and Immunosuppressive Function of Myeloid-Derived Suppressor Cells via the MAPK Signaling Pathway in Bladder Cancer.

Biomed Res Int 2021 23;2021:5535578. Epub 2021 Apr 23.

Department of Urology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.

Muscle-invasive bladder cancer (MIBC) is characterized by a highly complex immune environment, which is not well understood. Interleukin-6 (IL-6) is generated and secreted by multifarious types of cells, including tumor cells. This study was aimed at demonstrating that the levels of IL-6 and the number of myeloid-derived suppressor cells (MDSCs), with a positive correlation between them, increased in MIBC tissues, promoting MIBC cell proliferation, especially in patients with recurrence. Read More

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Clinical Use of Propranolol Reduces Biomarkers of Proliferation in Gastric Cancer.

Front Oncol 2021 26;11:628613. Epub 2021 Apr 26.

Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.

Gastric cancer has one of the highest mortality rate in the world, but the treatment is still limited. Building on previous studies, mechanistic studies on propranolol in gastric cancer mice models and gastric cancer patients were performed. Propranolol inhibited the proliferation of gastric cancer cells in a time- and concentration-dependent manner. Read More

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Comprehensive co-expression analysis reveals TMC8 as a prognostic immune-associated gene in head and neck squamous cancer.

Oncol Lett 2021 Jul 27;22(1):498. Epub 2021 Apr 27.

Department of Oral and Maxillofacial Surgery, Stomatological Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.

The occurrence and prognosis of head and neck squamous cell cancer (HNSC) is closely associated with human papillomavirus (HPV) infection. Transmembrane channel-like 8 (TMC8) is a key gene affecting the susceptibility of HPV and that plays an important role in T cell regulation. However, the mechanism by which TMC8 affects T cells and whether it further affects the prognosis of patients with HNSC remains unclear. Read More

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Peptides-Based Vaccine MP3RT Induced Protective Immunity Against Infection in a Humanized Mouse Model.

Front Immunol 2021 26;12:666290. Epub 2021 Apr 26.

Tuberculosis Prevention and Control Key Laboratory/Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Institute for Tuberculosis Research, 8th Medical Center, Chinese People's Liberation Army General Hospital, Beijing, China.

Background: Tuberculosis (TB) is still a global infectious disease that seriously threatens human beings. The only licensed TB vaccine Bacille Calmette-Guérin (BCG)'s protective efficacy varies significantly among populations and regions. It is very urgent to develop more effective vaccines. Read More

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Contribution of T Cell Receptor Alpha and Beta CDR3, MHC Typing, V and J Genes to Peptide Binding Prediction.

Front Immunol 2021 26;12:664514. Epub 2021 Apr 26.

Department of Mathematics, Bar-Ilan University, Ramat Gan, Israel.

Introduction: Predicting the binding specificity of T Cell Receptors (TCR) to MHC-peptide complexes (pMHCs) is essential for the development of repertoire-based biomarkers. This affinity may be affected by different components of the TCR, the peptide, and the MHC allele. Historically, the main element used in TCR-peptide binding prediction was the Complementarity Determining Region 3 (CDR3) of the beta chain. Read More

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Optimization of T Cell Redirecting Strategies: Obtaining Inspirations From Natural Process of T Cell Activation.

Front Immunol 2021 26;12:664329. Epub 2021 Apr 26.

Institutes of Biomedical Sciences, and Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China.

Chimeric antigen receptors (CARs) or bispecific antibodies (bsAbs) redirected T cell against tumors is one of the most promising immunotherapy approaches. However, insufficient clinical outcomes are still observed in treatments of both solid and non-solid tumors. Limited efficacy and poor persistence are two major challenges in redirected T cell therapies. Read More

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