Tumor antigen escape and T cell dysfunction limit the effectiveness of chimeric antigen receptor (CAR) T cell therapies. To overcome these challenges, Gardner et al. engineered synthetic enzyme-armed killer (SEAKER) cells to coexpress a CAR and a prodrug-activating enzyme to orchestrate a dual immunologic and pharmacologic attack at the tumor site.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9883698 | PMC |
http://dx.doi.org/10.1016/j.tips.2022.04.001 | DOI Listing |
Clin Oral Investig
May 2024
Clinical Research Unit of the Antonio Pedro Hospital, Fluminense Federal University, RJ, Niterói, Brazil.
Objectives: The aim of the present study was to assess the cytocompatibility of epoxy resin-based AH Plus Jet (Dentsply De Trey, Konstanz, Germany), Sealer Plus (MK Life, Porto Alegre, Brazil), calcium silicate-based Bio-C Sealer (Angelus, Londrina, PR, Brazil), Sealer Plus BC (MK Life) and AH Plus BC (Dentsply) through a tridimensional (3D) culture model of human osteoblast-like cells.
Methods: Spheroids of MG-63 cells were produced and exposed to fresh root canal sealers extracts by 24 h, and the cytotoxicity was assessed by the Lactate Dehydrogenase assay (LDH). The distribution of dead cells within the microtissue was assessed by fluorescence microscopy, and morphological effects were investigated by histological analysis.
Biomed Pharmacother
October 2023
Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran; Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. Electronic address:
Patients receiving high-dose methotrexate (HDMTX) for malignancies are exposed to diverse complications, including nephrotoxicity, hepatotoxicity, mucositis, myelotoxicity, neurological symptoms, and death. Glucarpidase is a recombinant carboxypeptidase G2 (CPG2) that converts MTX into nontoxic metabolites. In this study, the role of vector type, gene optimization, orientation, and host on the expression of CPG2 is investigated.
View Article and Find Full Text PDFCancer Immunol Res
September 2023
Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, New York.
Genetically engineered, cytotoxic, adoptively transferred T cells localize to antigen-positive cancer cells inside patients, but tumor heterogeneity and multiple immune escape mechanisms have prevented the eradication of most solid tumor types. More effective, multifunctional engineered T cells are in development to overcome the barriers to the treatment of solid tumors, but the interactions of these highly modified cells with the host are poorly understood. We previously engineered prodrug-activating enzymatic functions into chimeric antigen receptor (CAR) T cells, endowing them with a killing mechanism orthogonal to conventional T-cell cytotoxicity.
View Article and Find Full Text PDFbioRxiv
May 2023
Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA 10065.
Genetically engineered, cytotoxic, adoptive T cells localize to antigen positive cancer cells inside patients, but tumor heterogeneity and multiple immune escape mechanisms have prevented the eradication of most solid tumor types. More effective, multifunctional engineered T cells are in development to overcome the barriers to the treatment of solid tumors, but the interactions of these highly modified cells with the host are poorly understood. We previously engineered prodrug-activating enzymatic functions into chimeric antigen receptor (CAR) T cells, endowing them with an orthogonal killing mechanism to conventional T-cell cytotoxicity.
View Article and Find Full Text PDFTrends Pharmacol Sci
October 2022
Massachusetts General Hospital Center for Cancer Research, Boston, MA, USA; Massachusetts General Hospital Department of Pathology, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, USA. Electronic address:
Tumor antigen escape and T cell dysfunction limit the effectiveness of chimeric antigen receptor (CAR) T cell therapies. To overcome these challenges, Gardner et al. engineered synthetic enzyme-armed killer (SEAKER) cells to coexpress a CAR and a prodrug-activating enzyme to orchestrate a dual immunologic and pharmacologic attack at the tumor site.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!