ACIR
@ACIR_org
Accelerating Cancer Immunotherapy Research. A free weekly digest of the latest findings in the field. We also make cool images :) Listen to @ImmunoTalks.
Revach et al. recently showed that CD38 drives T cell exhaustion under chronic antigen stimulation and IFN signaling in the TME bit.ly/4mapb0q @MGHCancerCenter @oryamush

Sek and Chen et al. demonstrated that overexpression of the adenosine receptor A1R in CAR T cells reduced cAMP levels, and enhanced baseline and antigen-induced cytokine production and effector differentiation. bit.ly/44PEHYr @PeterMacRes @paulbeavis4

Humblin et al. showed that sustained ICOS signaling impaired CD8+ T cell survival and function during chronic antigen exposure. bit.ly/46bvdsX @SinaiImmunol

To overcome the poor persistence and progressive loss of functionality of TCR-engineered T cells, in vivo, Nowicki et al. evaluated tandem treatment with autologous blood-derived T cells and hematopoietic stem cells [...] bit.ly/3GFCHtS @UCLAstemcell @parkerici
![ACIR_org's tweet image. To overcome the poor persistence and progressive loss of functionality of TCR-engineered T cells, in vivo, Nowicki et al. evaluated tandem treatment with autologous blood-derived T cells and hematopoietic stem cells [...] bit.ly/3GFCHtS @UCLAstemcell @parkerici](https://pbs.twimg.com/media/GwJf8_kW8AATfnx.jpg)
Kao et al. showed that at steady state, primary human T cells and T cells from FcγR-humanized mouse strains lacked FcγR expression, except for a small fraction of CD8+ T cells that expressed FcγRIIIa. bit.ly/4kCqsw5 @RockefellerUniv

Phelps et al. investigated mechanisms underlying the positive benefits of exercise on ICI efficacy. In preclinical melanoma, adenocarcinoma, and lymphoma models, exercise promoted functional changes in the gut microbiome[...] bit.ly/4nUyC5S @UPMCHillmanCC @PLRC_PittLiver
![ACIR_org's tweet image. Phelps et al. investigated mechanisms underlying the positive benefits of exercise on ICI efficacy. In preclinical melanoma, adenocarcinoma, and lymphoma models, exercise promoted functional changes in the gut microbiome[...] bit.ly/4nUyC5S @UPMCHillmanCC @PLRC_PittLiver](https://pbs.twimg.com/media/GwEdNdlWoAAseOp.jpg)
Using the MC38 tumor model, Damei et al. showed that CD103+CD8 TRM cells are involved in responses to anti-PD-1 treatment, but not CTLA-4 blockade. bit.ly/4mgbDR9 @inserm

Empowering personalized neoantigen vaccines @danafarber. Read our digest here 👉 bit.ly/3TIc3U6

Dijkstra et al. generated patient-derived organoid sublines from spatially distinct tumor regions and separate clones within individual regions of 3 NSCLC samples, and also expanded tumor-reactive autologous [...] bit.ly/4nEgwVw @NKI_nl
![ACIR_org's tweet image. Dijkstra et al. generated patient-derived organoid sublines from spatially distinct tumor regions and separate clones within individual regions of 3 NSCLC samples, and also expanded tumor-reactive autologous [...] bit.ly/4nEgwVw @NKI_nl](https://pbs.twimg.com/media/Gv5gzrzW4AAurbQ.jpg)
Cao et al. demonstrated that the LRRC8A/C volume-regulated anion channel (VRAC) transfers cGAMP from irradiated cancer cells into immune cells within the tumor, and enhances their effector function. bit.ly/40CiNGD

Du, Chen, and You et al. explored mechanisms of LAG3-mediated T cell suppression. Optimal LAG3 inhibitory function required spatial proximity of LAG3 to TCRs (but not the CD4 co-receptor), and was facilitated [...] bit.ly/4eK3CBq @nyugrossman
![ACIR_org's tweet image. Du, Chen, and You et al. explored mechanisms of LAG3-mediated T cell suppression. Optimal LAG3 inhibitory function required spatial proximity of LAG3 to TCRs (but not the CD4 co-receptor), and was facilitated [...] bit.ly/4eK3CBq @nyugrossman](https://pbs.twimg.com/media/Gvljpo2XUAAAHuc.jpg)
Lakshmipathi et al. showed that β2-microglobulin (B2M)-KO (MHC-I non-expressing) melanoma and CRC mouse tumor lines grew rapidly and were anti-PD-L1-resistant when engrafted into immune-competent syngeneic mice. bit.ly/4eK3stO @YaleMed

Okada et al. engineered and evaluated the efficacy of GPC2-CAR T cells with constitutive production of soluble IL-15/IL-21, membrane-tethered IL-15 and IL-21, or NFAT-inducible expression of membrane-tethered [...] bit.ly/460udI6 @theNCI @okadar_in_usa
![ACIR_org's tweet image. Okada et al. engineered and evaluated the efficacy of GPC2-CAR T cells with constitutive production of soluble IL-15/IL-21, membrane-tethered IL-15 and IL-21, or NFAT-inducible expression of membrane-tethered [...] bit.ly/460udI6 @theNCI @okadar_in_usa](https://pbs.twimg.com/media/GvgaGBjXkAEmChw.jpg)
Saillard et al. demonstrated the clinical potential of TCR-engineered CD4+ T cells targeting a broad range of NY-ESO-1–expressing tumors in HLA-DRB3*02:02-positive cancers. bit.ly/3IjvtMs @OncoUNILCHUV

Mutant p53 doesn’t just lose functionality as a tumor suppressor - it gains new functions that promote an immunosuppressive microenvironment bit.ly/40HZR9s @kochinstitute @MGHImaging

Labiano et al. showed that in mice with diffuse midline glioma (DMG), intratumoral co-administration of the Delta-24-RGD oncolytic virus and agonist CD40 antibodies extended survival and induced complete responses in 40% of [...] bit.ly/3Gt1EZa @sara_labiano @Alonso_Lab
![ACIR_org's tweet image. Labiano et al. showed that in mice with diffuse midline glioma (DMG), intratumoral co-administration of the Delta-24-RGD oncolytic virus and agonist CD40 antibodies extended survival and induced complete responses in 40% of [...] bit.ly/3Gt1EZa @sara_labiano @Alonso_Lab](https://pbs.twimg.com/media/GvVW4P6WsAAisBZ.jpg)
Mi et al. developed an attenuated Salmonella typhimurium strain that harbored a quorum-sensing synchronized lysis circuit (SLC) and overexpressed LIGHT. bit.ly/4l5cN1q

Mohsen et al. showed that a low-affinity LCMV p33-derived A4Y peptide linked to a bacteriophage Qβ virus-like particle induced a robust and specific T cell response, but showed limited cross-reactivity to p33 and failed to protect [...] bit.ly/4kkhtze @MedFacultyUniBE
![ACIR_org's tweet image. Mohsen et al. showed that a low-affinity LCMV p33-derived A4Y peptide linked to a bacteriophage Qβ virus-like particle induced a robust and specific T cell response, but showed limited cross-reactivity to p33 and failed to protect [...] bit.ly/4kkhtze @MedFacultyUniBE](https://pbs.twimg.com/media/GvP_kj-XQAAtdQM.jpg)
Zhang and Zhong et al. focused on the role of glycosaminoglycans (GAGs) in regulating T cell responses in the TME. bit.ly/44lg1qk

Hunter et al. developed LNPs for in vivo i.v. CAR delivery, with reduced liver tropism and superior tolerability in rats and non-human primates (NHP) compared to Pfizer’s COVID vaccine formulation. bit.ly/44cJ68J @Haig_Ag
