Transforming growth factor {beta} induced as a novel secreted immune checkpoint counterinhibiting human tumor-associated T cells

Background
We investigated the hypothesis that transforming growth factor β induced (TGFBI), an extracellular matrix protein secreted in the microenvironment of several tumors, can act as a secreted immune checkpoint (sIC) that contributes to the…

Epigenetic remodeling in sarcoma promotes T-cell infiltration via modulation of the Hippo pathway

Background
Insufficient T-cell infiltration limits the effectiveness of immunotherapy in sarcoma, yet the tumor-intrinsic mechanisms that govern immune exclusion remain poorly defined.

Methods
By integrating patient-derived ex vivo sarcoma spheroids …

Influence of USP15 and its derived-peptide on non-small cell lung cancer immune evasion via regulating PD-L1 stability

Background
Immune checkpoint inhibitors (ICIs) therapy targeting programmed cell death protein 1 (PD-1)/programmed cell death-ligand 1 (PD-L1) shows promising clinical benefits in non-small cell lung cancer (NSCLC). However, the relatively low respons…

HFB301001, an OX40-based immunotherapy, drives Treg clearance and CTL activation through optimized OX40 receptor clustering

Background
OX40, a key co-stimulatory receptor that amplifies T cell-mediated anti-tumor immunity, is a promising immunotherapeutic target. Despite most reported OX40 agonists in clinical trials having high affinity, the relationship between affinity …

Pharmacologic targeting of the dopamine D2 receptor impacts the efficacy of immune checkpoint blockade in melanoma

Background
Immune checkpoint inhibitors (ICIs) have been successful in treating advanced melanoma, yet, the 10-year melanoma-specific survival is only 52%. Our prior work using genetic linkage analysis revealed that the murine prolactin (PRL) locus as…

Telmisartan increases olaparib efficacy in homologous recombination proficient tumors by augmenting type I interferon production

Background
Poly-ADP ribose polymerase inhibitors (PARPi) are well-known to treat tumors that are deficient in homologous recombination (HR) DNA repair. However, PARPi can treat breast cancer gene (BRCA) wild-type tumors, the mechanisms behind which ar…

Targeted inhibition of Nrf2 potentiates antitumor immunity and enhances the efficacy of immunotherapy in hepatocellular carcinoma

Background
Immune checkpoint inhibitors (ICIs) and chimeric antigen receptor T-cell (CAR-T) immunotherapies have revolutionized the treatment of hepatocellular carcinoma (HCC). However, the frequent emergence of treatment resistance significantly limi…

Single-cell-based identification of drug synergy with immunotherapy via tumor microenvironment remodeling

Background
Identifying effective therapeutic drugs in the intricate tumor microenvironment (TME) is challenging, further complicated by the lack of a systematic framework for analyzing TME perturbations in response to therapeutic interventions.

Metho…

Dual regulation of CXCR6+CD8+ T cells modulates cytotoxic and exhaustion-associated programs during prostate cancer progression

Background
Prostate cancer (PCa) is widely recognized as an immunologically “cold” tumor, characterized by a paucity of effector T cells and a limited response to immune checkpoint blockade therapy. Although the chemokine receptor CXCR6 has been ident…

Fluorination augments tumor engagement and antitumor immunity of a D-peptide-based radiotheranostic agent for combinatorial immune checkpoint blockade therapy

Background
Programmed death-ligand 1 (PD-L1)-targeted radiopharmaceutical therapy (RPT) combined with immune checkpoint blockade (ICB) represents a promising combinatorial treatment because of the “magic” bystander and abscopal effects of RPT. However…

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