Estrogen receptor (ER)-positive breast cancer is among the most prevalent subtypes and is the cause of most of the mortality among breast cancer patients. Endocrine therapy is effective in these cases, but the development of resistance is a fact in many cases.
Researchers from Bright Peak Therapeutics AG presented the discovery and preclinical characterization of a novel first-in-class PD-1/interleukin-18 (IL-18) immunocytokine, BPT-567.
Checkpoint kinase 1 (CHK1) is involved in cell cycle arrest by activation of DNA damage response pathways. The aim of researchers from Shanghai Fosun Pharmaceutical (Group) Co. Ltd. was to develop a potent oral CHK1 inhibitor, XS-02, for the treatment of solid tumors.
Thetis Pharmaceuticals LLC and Harvard Medical School have presented data on the stable salt chelate of Resolvin E1, TP-317, for the potential treatment of immune checkpoint inhibitor (ICI)-resistant and sensitive tumors. TP-315 is an activator of ChemR23, a receptor expressed on immune cells in the tumor microenvironment. In vivo murine models of lung, melanoma (B16F10) and pancreatic (Panc2-H7) tumors were used to investigate TP-317 monotherapy and in combination with ICI.
New and updated clinical data presented by biopharma firms at the American Association for Cancer Research annual meeting, including: 23andme, Affimed, Astrazeneca, Genentech, Harbour Biomed, Humanigen, Immune-Onc, Innovent, Mina, Morphosys, Pieris, Quanta, Renovorx, Tempest.
Combining the personalized cancer vaccine mRNA-4157 (V-940, Moderna Inc.) with Keytruda (pembrolizumab, Merck & Co. Inc.) significantly extended recurrence-free survival in patients with stage III/IV resected high-risk melanoma in the randomized phase II KEYNOTE-942/mRNA-4157-P201 trial. Compared to Keytruda alone, adding the vaccine cut the risk of recurrence or death by 44% 18 months after treatment, lead investigator Jeffrey Weber reported at the opening clinical trials plenary of the 2023 annual meeting of the American Association for Cancer Research (AACR).
Among over 100 members of the PTP family, protein-tyrosine phosphatase 1B (PTP-1B) and T-cell protein-tyrosine phosphatase (PTPN2, TCPTP) have the most closely related homology (72%), sharing identical catalytic subunits. Significantly, together they serve nonredundant functions suppressing CD8+ T-cell activation and negatively impacting on tumor cells antigen presentation. Agents that can simultaneously target both PTP-1B and TCPTP have the potential to provide therapeutic benefits in the context of cancer and/or diabetes by increasing T-cell activation and reversing suppression of tumor cell MHC1 expression.
Expression of the tyrosine-protein phosphatase non-receptor type 22 (PTPN22) is restricted to hematopoietic cells where it serves critical functions in regulating T-cell signaling that have made PTPN22 the focus of potential future cancer immunotherapy.
Researchers from Astrazeneca plc described the development and preclinical evaluation of AZD-5335, a novel antibody-drug conjugate (ADC) consisting of folate receptor α (FR-α)-targeting antibody conjugated to a proprietary topoisomerase 1 inhibitor (TOP1i), being developed as a potential new therapeutic against ovarian cancer.
Chronic inflammatory and neuropathic pain are among the most common chronic conditions, but their treatment options present significant limitations both in efficacy and safety. Researchers from Purdue University presented data on their work aimed to develop adenyl cyclase type 1 (AC1, ADCY1) inhibitors as a new treatment for chronic pain.
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