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GENE:

MSI (Microsatellite instability)

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Other names: MSI | Microsatellite instability
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Testing Immunotherapy (Atezolizumab) With or Without Chemotherapy in Locoregional MSI-H/dMMR Gastric and Gastroesophageal Junction (GEJ) Cancer (clinicaltrials.gov)
P2, N=2, Active, not recruiting, National Cancer Institute (NCI) | N=240 --> 2 | Trial completion date: Oct 2027 --> Jun 2027 | Trial primary completion date: Oct 2027 --> Jan 2026
Enrollment change • Trial completion date • Trial primary completion date • MSI-H • dMMR
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MSI (Microsatellite instability) • MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2)
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MSI-H/dMMR
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Tecentriq (atezolizumab) • docetaxel • capecitabine • oxaliplatin • leucovorin calcium • fluorouracil topical
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Artificial intelligence for biomarker prediction in gastric cancer: from histopathology to multimodal integration. (PubMed, Front Oncol)
Future directions include prospective multicenter validation in clinical workflows, standardization of evaluation frameworks, and implementation of uncertainty estimation to support clinical decision-making. Overall, AI-enabled digital pathology represents a promising approach for advancing precision oncology in GC by improving biomarker assessment and providing insights into tumor biology.
Review • Journal
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MSI (Microsatellite instability)
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NT5E promotes colorectal cancer progression and correlates with PD-L1 expression: evidence from multi-omics analysis, clinical samples, and cellular functional assays. (PubMed, BMC Cancer)
NT5E accelerates disease progression by promoting malignant biological behaviors in colorectal cancer and synergistically shaping an immunosuppressive microenvironment with PD-L1. Its overexpression constitutes an independent adverse prognostic factor. This discovery offers novel insights for anti-PD-1/PD-L1 combination immunotherapy.
Journal • MSi-H Biomarker • PD(L)-1 Biomarker • IO biomarker
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PD-L1 (Programmed death ligand 1) • MSI (Microsatellite instability) • CD73 (5'-Nucleotidase Ecto) • HAVCR2 (Hepatitis A Virus Cellular Receptor 2) • TIGIT (T Cell Immunoreceptor With Ig And ITIM Domains 2) • NT5E (5'-Nucleotidase Ecto)
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PD-L1 expression • MSI-H/dMMR • PD-L1 overexpression
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IL-17-driven tumor cell-intrinsic inflammatory programming creates an immunotherapy-permissive microenvironment. (PubMed, Mol Cancer)
IL-17-responsive, tumor cell-intrinsic inflammatory programming remodels the tumor immune microenvironment toward an immunotherapy-permissive state. These findings establish IL-17-responsive tumor cell inflammatory programming as a mechanistic axis shaping immune checkpoint sensitivity and provide a rationale for biomarker-guided immunotherapy strategies.
Journal • Tumor mutational burden • PD(L)-1 Biomarker • IO biomarker
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TMB (Tumor Mutational Burden) • MSI (Microsatellite instability) • CD8 (cluster of differentiation 8) • CD4 (CD4 Molecule) • IL17A (Interleukin 17A) • RORC (RAR Related Orphan Receptor C)
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Mitochondrial genome alterations in cancer: From mutations and epigenetics to targeted therapiesack. (PubMed, Biochem Biophys Res Commun)
We also discuss how MEG alterations contribute to the Warburg effect, chemoresistance, and tumor metastasis, which are critical barriers to effective cancer treatment. This synthesis highlights the pivotal role of mitochondrial genetics in cancer biology and positions MEGs as promising targets for innovative anticancer therapies.
Review • Journal
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MSI (Microsatellite instability)
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Metastatic Unfunctional Pancreatic Neuroendocrine Tumor in Lynch Syndrome. (PubMed, Clin Case Rep)
Liver lesions shrank after treatment with octreotide and Lutetium-177 vipivotide tetraxetan...The role of microsatellite instability (MSI) as a screening marker, and personalized treatment approaches like immunotherapy for dMMR tumors. Understanding these correlations may assist in early discovery, surveillance, and customized treatment for patients dealing with LS-associated malignancies.
Journal • IO biomarker
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MSI (Microsatellite instability)
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MSI-H/dMMR
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Pluvicto (lutetium Lu 177 vipivotide tetraxetan)
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Neoadjuvant toripalimab plus celecoxib versus toripalimab monotherapy for mismatch repair-deficient or microsatellite instability-high, locally advanced colorectal cancer (PICC-2): an open-label, multicentre, randomised, phase 2 trial. (PubMed, Lancet Oncol)
In patients with dMMR or MSI-H locally advanced colorectal cancer, neoadjuvant toripalimab plus celecoxib significantly increased the proportion of patients attaining pathological complete response compared with toripalimab monotherapy, with a similar safety profile. These findings support further investigation of this combination strategy in larger phase 3 trials.
P2 data • Journal • Mismatch repair • Microsatellite instability • MSI-H • dMMR
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MSI (Microsatellite instability)
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MSI-H/dMMR
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Loqtorzi (toripalimab-tpzi) • celecoxib oral
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Trial completion date
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MSI (Microsatellite instability)
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Avastin (bevacizumab) • pumitamig (BNT327)
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Prognostic Significance of Cellular Cannibalism in Colorectal Tumors. (PubMed, Int J Surg Pathol)
CC was associated with poor colorectal cancer outcomes in our study. Therefore, we believe that it is important to identify and quantify cannibal cells during routine histopathology examinations to demonstrate their morphological predictive value.
Journal
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KRAS (KRAS proto-oncogene GTPase) • MSI (Microsatellite instability)
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KRAS mutation
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Circulating Tumor DNA (ctDNA) as a Predictive Biomarker for Immunotherapy in Advanced or Locally Advanced dMMR/MSI-H Colorectal Patients (clinicaltrials.gov)
P=N/A, N=60, Recruiting, Geneplus-Beijing Co. Ltd. | Trial completion date: Dec 2025 --> Dec 2026 | Trial primary completion date: Dec 2025 --> Dec 2026
Trial completion date • Trial primary completion date • Circulating tumor DNA • MSI-H • dMMR
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MSI (Microsatellite instability)
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MSI-H/dMMR
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Spatial immune archetypes in gastric and colorectal cancer: a proposed conceptual framework for immunotherapy resistance and therapeutic remodeling. (PubMed, Front Immunol)
pylori in the stomach, F. nucleatum in the colon) shape the prevalence of each archetype. By elucidating the molecular circuits and environmental dependencies underlying these spatially encoded resistance programs, we articulate a translational imperative: archetype-guided spatial biomarkers and targeted microenvironment-remodeling strategies provide the most viable framework to extend durable immunotherapeutic benefit to the historically refractory MSS/pMMR gastrointestinal cancer population.
Review • Journal • MSi-H Biomarker • IO biomarker
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MSI (Microsatellite instability)
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MSI-H/dMMR