Publications by authors named "B V Klimovich"

Article Synopsis
  • Breast cancer is the most prevalent cancer in women, and while immunotherapy has shown promise, many patients, especially those with triple-negative breast cancer, either aren't eligible for current treatments or don't respond effectively.
  • A study examined tumor samples from 25 breast cancer patients, revealing high levels of CD276, a potential target for new immunotherapies, especially using a novel antibody called CC-3.
  • CC-3 demonstrated significant abilities to activate T cells, promote their growth, and kill tumor cells in lab settings, supporting its potential for further clinical trials in breast cancer patients.
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Despite the advances in cancer treatment achieved, for example, by the CD20 antibody rituximab, an urgent medical need remains to optimize the capacity of such antibodies to induce antibody-dependent cellular cytotoxicity (ADCC) that determines therapeutic efficacy. The cytokine IL-15 stimulates proliferation, activation, and cytolytic capacity of NK cells, but broad clinical use is prevented by short half-life, poor accumulation at the tumor site, and severe toxicity due to unspecific immune activation. We here report modified immunocytokines consisting of Fc-optimized CD19 and CD20 antibodies fused to an IL-15 moiety comprising an L45E-E46K double mutation (MIC format).

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Article Synopsis
  • Relapse and graft-versus-host disease (GVHD) are major causes of death after hematopoietic cell transplantation (HCT), and invariant natural killer T (iNKT) cells may help prevent GVHD while fighting malignancies.
  • This study aimed to enhance the effectiveness of iNKT cells by creating CD19-CAR-iNKT cells that target lymphoma while maintaining their immune-regulatory properties.
  • Results showed that while CD19-CAR-iNKT cells can induce target cell death, they also face exhaustion; however, using checkpoint inhibitors like nivolumab boosted their effectiveness and reduced the risk of GVHD.
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Immunotherapies targeting cancer-specific neoantigens have revolutionized the treatment of cancer patients. Recent evidence suggests that epigenetic therapies synergize with immunotherapies, mediated by the de-repression of endogenous retroviral element (ERV)-encoded promoters, and the initiation of transcription. Here, we use deep RNA sequencing from cancer cell lines treated with DNA methyltransferase inhibitor (DNMTi) and/or Histone deacetylase inhibitor (HDACi), to assemble a de novo transcriptome and identify several thousand ERV-derived, treatment-induced novel polyadenylated transcripts (TINPATs).

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T-cell immunity is central for control of COVID-19, particularly in patients incapable of mounting antibody responses. CoVac-1 is a peptide-based T-cell activator composed of SARS-CoV-2 epitopes with documented favorable safety profile and efficacy in terms of SARS-CoV-2-specific T-cell response. We here report a Phase I/II open-label trial (NCT04954469) in 54 patients with congenital or acquired B-cell deficiency receiving one subcutaneous CoVac-1 dose.

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