Pharmacological and structural characterization of vibostolimab, a novel anti-TIGIT blocking antibody for cancer immunotherapy

Background
Vibostolimab is a humanized anti-T cell immunoreceptor with immunoglobulin (Ig) and ITIM domains (TIGIT) antibody was recently investigated in late-stage clinical trials. Vibostolimab was developed based on its specific binding property to …

Temporal optimization of CD25-biased IL-2 agonists and immune checkpoint blockade leads to synergistic anticancer activity despite robust regulatory T cell expansion

Background
Interleukin-2 (IL-2) immunotherapy can induce durable tumor remissions, but its clinical performance has been limited by significant drawbacks such as short serum half-life and high toxicity. Administration of IL-2 in complex with certain a…

Dexmedetomidine induces immunogenic cancer cell death and sensitizes tumors to PD-1 blockade

Background
Local anesthetics promote anticancer immune responses. A machine learning-based algorithm trained with information on the biological effects and molecular descriptors of analgesics, anesthetics, hypnotics and opioids predicted antitumor eff…

Memory-promoting function of miR-379-5p attenuates CD8+ T cell exhaustion by targeting immune checkpoints

Background
MicroRNAs (miRNAs) are epigenetic regulators of T cell maturation and exhaustion. However, the mechanisms by which miRNAs influence T cell function in tumor environments remain unclear. This study focuses on miR-379-5p, which counteracts T …

Neural crest-associated gene FOXD1 induces an immunosuppressive microenvironment by regulating myeloid-derived suppressor cells in melanoma

Background
Neural crest-associated genes play pivotal roles in tumor initiation, progression, and the intricate dynamics of the tumor microenvironment (TME). Myeloid-derived suppressor cells (MDSC) within the TME are important in dampening T cell acti…

MHC class II-mediated spontaneous rejection of breast carcinomas expressing model neoantigens

Background
Cancers persist despite expression of immunogenic neoantigens and ongoing antitumor immune responses. While some occult tumors likely are cleared by effective antitumor immune responses, the targeted antigens are not easily identifiable as …

Genome-wide CRISPR/Cas9 screen reveals factors that influence the susceptibility of tumor cells to NK cell-mediated killing

Background
Natural killer (NK) cells exhibit potent cytotoxic activity against various cancer cell types. Over the past five decades, numerous methodologies have been employed to elucidate the intricate molecular mechanisms underlying NK cell-mediated…

Orlistat facilitates immunotherapy via AKT-FOXO3a-FOXM1-mediated PD-L1 suppression

Background
The immunotherapy targeting cytotoxic T lymphocyte-associated antigen-4 (CTLA-4) and programmed cell death ligand-1 (PD-L1) has achieved significant breakthroughs, but further improvements are still needed in cancer treatment.

Methods
We i…

Differential regulation of calcium-NFAT signaling pathway by Akt isoforms: unraveling effector dynamics and exhaustion of cytotoxic T lymphocytes in tumor microenvironment

Background
Impairment of Akt signaling has been observed in antigen-specific cytotoxic T lymphocytes (CTLs) during chronic viral infections or tumor progression. Despite numerous studies emphasizing Akt’s role in driving CTL effector functions, …

PLS-{alpha}-GalCer: a novel targeted glycolipid therapy for solid tumors

Background
The prototypical type I natural killer T (NKT) cell agonist, α-galactosylceramide (α-GalCer), has shown only minimal effects against solid tumors in the clinic. The most promising clinical application of α-GalCer currently…

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