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 >  Protein>TIGIT >TIT-H52H5

Human TIGIT Protein, His Tag, active dimer (MALS verified)

分子别名(Synonym)

TIGIT,VSIG9,VSTM3

表达区间及表达系统(Source)

Human TIGIT, His Tag (TIT-H52H5) is expressed from human 293 cells (HEK293). It contains AA Met 22 - Pro 141 (Accession # Q495A1-1).

Predicted N-terminus: Met 22

蛋白结构(Molecular Characterization)

This protein carries a polyhistidine tag at the C-terminus.

The protein has a calculated MW of 28.8 kDa. The protein migrates as 30-45 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>90% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法(Reconstitution)

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

存储(Storage)

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.

质量管理控制体系(QMS)

  1. 质量管理体系(ISO, GMP)
  2. 质量优势
  3. 质控流程
 

电泳(SDS-PAGE)

TIGIT SDS-PAGE

Human TIGIT, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.

SEC-MALS

TIGIT SEC-MALS

The purity of Human TIGIT, His Tag (Cat. No. TIT-H52H5) is more than 85% and the molecular weight of this protein is around 30-40 kDa verified by SEC-MALS.

Report

 

活性(Bioactivity)-ELISA

TIGIT ELISA

Immobilized Human TIGIT, His Tag (Cat. No. TIT-H52H5) at 2 μg/mL (100 μL/well) can bind Human CD155, Fc Tag (Cat. No. CD5-H5251) with a linear range of 0.3-10 ng/mL (QC tested).

Protocol

TIGIT ELISA

Immobilized Human TIGIT, His Tag (Cat. No. TIT-H52H5) at 1 μg/mL (100 μL/well) can bind Human Nectin-3, Fc Tag (Cat. No. PV3-H5255) with a linear range of 0.078-5 μg/mL (Routinely tested).

Protocol

 

活性(Bioactivity)-SPR

TIGIT SPR

Anti-hTIGIT antibody captured on CM5 chip via Anti-mouse antibodies surface can bind Human TIGIT, His Tag (Cat. No. TIT-H52H5) with an affinity constant of 1.28 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).

Protocol

 
评论(7)
  1. 183XXXXXXX2
  2. 2人赞
  3. 该蛋白主要用于抗Tigit抗体结合活性的检测,在实验中,使用该蛋白进行Elisa活性方法开发取得了不错的进展,蛋白稳定,与Tigit抗体结合活性好,平行性好,故用于做方法验证以及放行实验。
  4. 2022-1-7
  1. 138XXXXXXX1
  2. 0人赞
  3. 一直以来都是优先选择acro家的蛋白,质量稳定,售后服务也好,得出的结果也很漂亮,合作愉快,一直很信赖!
  4. >
  5. 2022-6-16
  1. 156XXXXXXX8
  2. 0人赞
  3. 购买该蛋白用于开展动物免疫,制备抗体的工作,该蛋白纯度在90%以上,能够满足动物免疫的需求,且在前期的验证阶段,该蛋白在ELISA上能够与Tiragolumab结合,EC50值为25.93ng/ml。
  4. 2021-8-19
 
ACRO质量管理体系
 
 

背景(Background)

T-cell immunoreceptor with Ig and ITIM domains (TIGIT) is also known as V-set and immunoglobulin domain-containing protein 9 (VSIG9), V-set and transmembrane domain-containing protein 3 (VSTM3),which belongs to single-pass type I membrane protein containing an immunoglobulin variable domain, a transmembrane domain and an immunoreceptor tyrosine-based inhibitory motif (ITIM). TIGIT is expressed at low levels on peripheral memory and regulatory CD4+ T-cells and NK cells and is up-regulated following activation of these cells (at protein level). TIGIT binds with high affinity to the poliovirus receptor (PVR) which causes increased secretion of IL10 and decreased secretion of IL12B and suppresses T-cell activation by promoting the generation of mature immunoregulatory dendritic cells.

 

前沿进展

Identification of new immune target and signaling for cancer immunotherapy
Narote, Desai, Patel et al
Cancer Genet (2025) 294-295, 57-75
Abstract: Immunotherapy has become one of the innovative treatments in malignancy as it activates the immune system to find and eliminate malignant cells. The tumor immunology interface has become increasingly intricate, making the identification of new immune targets and signalling pathways on which to base improved therapeutic strategies an ongoing process. This review, we goal to clarify the contacts between cancer and immune system with a focus on immune surveillance as well as immune evasion mechanisms. Comprehensive immunotherapeutic therapies are overviewed with ICI (CTLA-4, PD-1, PD-L1), CAR-T cell therapy, and cancer vaccines whereas, advanced therapies targeting new immune checkpoints are also elucidated including TIM-3, LAG-3, and TIGIT. The JAK/STAT, MAPK and PI3K-AKT-mTOR pathways are reviewed with regards to cancer progression and immunotherapeutic resistance. The dysregulation of these pathways gives hope for the identification of fresh targets for therapy. Genomics, proteomics, immunopeptidomics, single cell mass spectrometry, CRISPR-based functional genomics and bioinformatics are described as essential for immune target identification and for mapping of cancer relevant signaling pathways. This review also considers some emerging issues in the subject area like the tumor heterogeneity, immune-related adverse events (irAEs), and personalized treatment. These barriers are described to facilitate the understanding of ways to overcome them and increase the efficacy of immunotherapies through combination therapies. This means that by developing new knowledge of immunological targets and pathways, immunoprecision medicine for cancer could greatly enhance outcomes.Copyright © 2025 Elsevier Inc. All rights reserved.
Recent developments on checkpoint inhibitors, CAR T cells, and beyond for T cell-based immunotherapeutic strategies against cancer
Ali, Arshad, Summer et al
J Oncol Pharm Pract (2025)
Abstract: ObjectiveThere was a dire need to construct a review of the recent developments on Immune checkpoint inhibitors (ICIs), CAR T Cells, and other approaches for T cell-based immunotherapeutic strategies against cancer as cancer has become one of the most fatal diseases that is responsible for causing several deaths per annum.Data sourcesMultiple published data was acquired from the high-impact factor journal articles.Data summaryMultiple clinical strategies have been in use today such as radiotherapy, chemotherapy and immunotherapy to treat cancer of different types. Among novel cancer management strategies, the role of cancer immunotherapy by T cells has become immensely important. Cancer immunotherapy has revolutionized treatment approaches and it basically utilizes the body's immune system to treat cancer. At the forefront of this revolution, T cells are considered as the fundamental components of immune system.ConclusionsThe current review explores the therapeutic potential of T cells in the fight against cancer by applying strategies such as various ICIs (PD-1/PD-L1, CTLA-4, TIGIT, BTLA, TIM3, LAG3) and adoptive cell therapy. ICIs stimulate the body's existing anti-tumor T-cell response by the way of removing immune system inhibitors. On the other hand, in adoptive cell therapy (ACT) patient's T cells are modified to identify and attack tumor cells. Furthermore, this review also highlights significant successes that are observed with these therapies, notably PD-1 blockade and CAR T-cell therapy for various tumors. Moreover, this review also explores the potential of therapeutic vaccination, bispecific antibodies and cytokine therapy to enhance the antitumor activity. Therapeutic vaccines expose immune system to various tumor-associated antigens and training it to identify and then attack cancer cells, showing promising results in different types of cancers such as prostate cancer and melanoma. While, cytokine therapy is accompanied by the use of cytokines such as interleukin-2 (IL-2) to stimulate immune cell activity and proliferation, thereby boosting the overall anti-tumor immune response. Lastly, the current review explores the promising future of T cell-based immunotherapy, envisioning advancements in CAR design and gene editing techniques that can enhance efficacy across a broader spectrum of cancers.
VPS25 Promotes an Immunosuppressive Microenvironment in Head and Neck Squamous Cell Carcinoma
Chen, Fang, Wang et al
Biomolecules (2025) 15 (3)
Abstract: The ESCRT (endosomal sorting complex required for transport) machinery is essential for various cellular processes, yet its role in head and neck squamous cell carcinoma (HNSCC) is poorly understood. We utilized The Cancer Genome Atlas (TCGA) datasets to analyze the expression of ESCRT genes. Bulk RNA-sequencing data and HNSCC tissue microarrays (TMAs) were used to evaluate VPS25 expression and its clinical significance. Single-cell RNA sequencing of tumor tissues and VPS25 knockdown experiments in CAL27 cells were used to investigate its biological functions. Immunohistochemistry, spatial transcriptomics, and immunotherapy datasets highlighted the involvement of VPS25 in immune suppression and its potential as a predictive biomarker. The results demonstrated significant VPS25 overexpression in HNSCC tissues, which correlated with poor clinical outcomes. It promoted tumor cell proliferation and migration while reducing immune cell infiltration in the tumor microenvironment (TME). Additionally, by upregulating PVR expression in tumor cells, VPS25 activated the immunosuppressive PVR-TIGIT signaling axis, thereby facilitating immune evasion. Furthermore, VPS25 emerged as a potential biomarker for predicting immunotherapy response. These findings highlight VPS25 as a pivotal regulator of tumor progression and immune evasion in HNSCC and a promising target for therapeutic strategies.
NeoTRACK trial: Neoadjuvant TiRagolumab, Atezolizumab and Chemotherapy - dissection of IO- efficacy in NSCLC by longitudinal tracKing - protocol of a non-randomised, open-label, single-arm, phase II study
Roesch, Schnorbach, Klotz et al
BMJ Open (2025) 15 (3), e096617
Abstract: Immunotherapies targeting the programmed death receptor-1/programmed death ligand-1(PD-1/PD-L1) checkpoint have a major impact on the treatment of both resectable and advanced non-small cell lung cancer (NSCLC). Additional blockade of the T-cell immunoreceptor with immunoglobulin and immunoreceptor tyrosine-based inhibition motif domain (TIGIT)-receptor may synergistically foster the immune-related response. Several trials are currently investigating the combination of neoadjuvant platinum-based chemotherapy and dual checkpoint inhibition prior to curative surgery. The investigator-initiated NeoTRACK trial (EU CT number: 2022-501322-38-00; ClinicalTrials.gov identifier: NCT05825625; IKF056) aims to evaluate the feasibility and safety of perioperative anti-PD-L1 (by atezolizumab) and anti-TIGIT (by tiragolumab) treatment in combination with chemotherapy in patients with early stage NSCLC.NeoTRACK is an open-label, single-arm, prospective, bicentric phase II trial. Patients with NSCLC in clinical stages II, IIIA and IIIB (only T3N2) will receive two cycles of standard platinum-based chemotherapy in combination with the anti-TIGIT antibody tiragolumab and the anti-PD-L1 antibody atezolizumab, followed by curative surgery. After surgery, patients without pathological complete response (pCR) will receive another two cycles of chemotherapy in combination with tiragolumab and atezolizumab, followed by tiragolumab/atezolizumab maintenance for up to 1 year (maximum 16 cycles). Patients with pCR will only receive dual immunotherapy. All patients will be followed-up for 30 months after the last study treatment. The clinical study will be aligned with a translational research programme to investigate treatment-naïve tumour tissues, surgical specimens and longitudinally collected blood samples. 35 patients are planned for enrolment. Patient recruitment started in August 2023, and treatment of the last patient is estimated to start 2.5 years thereafter.The NeoTRACK trial aims to assess the feasibility and efficacy of combining tiragolumab and atezolizumab as both neoadjuvant and adjuvant therapies in patients with resectable NSCLC. The concept of treatment personalisation based on postoperative pCR is of great clinical interest.The trial obtained ethical and regulatory approval in Germany through the Clinical Trials Information System (CTIS, ID: 2022-501322-38-00) and the Paul Ehrlich Institute (PEI, competent authority for approval of clinical trials using medicinal products for human use in Germany, process number: PB00148) on 30 March 2023. A data safety and monitoring board will meet regularly to review ongoing treatment in terms of safety.Study results will be published in peer-reviewed journals, presented at conferences and in the public registry of CTIS, following trial completion.NCT05825625.© Author(s) (or their employer(s)) 2025. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ Group.
Showing 1-4 of 1808 papers.
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TIGIT靶点信息
英文全称:T cell immunoglobulin and ITIM domains
中文全称:T细胞免疫球蛋白ITIM结构域
种类:Homo sapiens
上市药物数量:0详情
临床药物数量:38详情
最高研发阶段:临床三期
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