Treating ICB-resistant glioma with anti-CD40 and mitotic spindle checkpoint controller BAL101553 (lisavanbulin)
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE186302 | GEO | 2021/10/23
REPOSITORIES: GEO
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Project description:Glioblastoma is a highly malignant brain tumor with no curative treatment options, and immune checkpoint blockade has not yet shown major impact. We hypothesized that drugs targeting mitosis might affect the tumor microenvironment and sensitize cancer cells to immunotherapy. We used 2 glioblastoma mouse models with different immunogenicity profiles, GL261 and SB28, to test the efficacy of antineoplastic and immunotherapy combinations. The spindle assembly checkpoint activator BAL101553 (lisavanbulin), agonistic anti-CD40 antibody, and double immune checkpoint blockade (anti-programmed cell death 1 and anti-cytotoxic T lymphocyte-associated protein 4; anti-PD-1 and anti-CTLA-4) were evaluated individually or in combination for treating orthotopic GL261 and SB28 tumors. Genomic and immunological analyses were used to predict and interpret therapy responsiveness. BAL101553 monotherapy increased survival in immune checkpoint blockade-resistant SB28 glioblastoma tumors and synergized with anti-CD40 antibody, in a T cell-independent manner. In contrast, the more immunogenic and highly mutated GL261 model responded best to anti-PD-1 and anti-CTLA-4 therapy and more modestly to BAL101553 and anti-CD40 combination. Our results show that BAL101553 is a promising therapeutic agent for glioblastoma and could synergize with innate immune stimulation. Overall, these data strongly support immune profiling of glioblastoma patients and preclinical testing of combination therapies with appropriate models for particular patient groups.
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Project description:Treating ICB-resistant glioma with anti-CD40 and mitotic spindle checkpoint controller BAL101553 (lisavanbulin)
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Project description:Goal: determine how transcriptome of immune cells within the tumor microenvironment changes as a function of CD40 agonist and/or immune checkpoint blockade (anti-PD-1 AND anti-CTLA-4; "ICB") therapy
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Project description:Temporal analysis (60, 180, 360 min) of B cells treated with either: CD40 Anti-IgM ELC IL4 Lipopolysaccharide Terbutaline CD40 and IL4 CD40 and Lipopolysaccharide CD40 and Anti-IgM Anti-IgM and ELC Anti-IgM and Terbutaline ELC and Lipopolysaccharide This SuperSeries is composed of the following subset Series: GSE1019: B cell response to Anti-IgM and CD40 treatment GSE1020: B cell response to Anti-IgM and ELC treatment GSE1021: B cell response to Anti-IgM and terbutaline treatment GSE1022: B cell response to CD40 and lipopolysaccharide treatment GSE1023: B cell response to CD40 and IL4 treatment GSE1024: B cell response to ELC and lipopolysaccharide treatment Refer to individual Series
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Project description:Immune checkpoint blockade (ICB) is the current first-line treatment for metastatic melanoma. However, ICB fails in many patients and has dangerous side effects. Rigosertib (RGS), a non-ATP-competitive small molecule RAS mimetic, has the potential to block oncogenic RAS-RAF-MEK-ERK and/or PI3K-AKT-mTOR signaling pathways. RGS treatment (300mg/kg) of melanoma tumor-bearing mice is well tolerated and results in ~50% inhibition of tumor growth as monotherapy and ~70% inhibition in combination with ICB. RGS-induced tumor inhibition depends on the induction of CD40 expression on melanoma cells, followed by immunogenic cell death, leading to an inflamed tumor microenvironment with enrichment of dendritic cells and activated CD8+ T cells. Highlights • RGS impairs melanoma tumor growth via direct killing and immunogenic cell death that promotes an inflamed tumor microenvironment. • RGS-induced tumor inhibition depends on the induction of CD40 expression on melanoma cells. • Combining RGS with αPD1+αCTLA4 improves tumor response. • Tumor CD40 levels are prognostic for therapeutic response to RGS and BRAF inhibitor. Significance: A high CD40 expression level correlates with CD80, ICOS-L, beneficial type I T cell responses, and better survival in melanoma patients (cBioPortal database). Tumor CD40 levels are prognostic for therapeutic response to RGS and BRAF inhibitor (DepMap and Oncomine databases), and RGS induces CD40 expression in melanoma tumor cells. Our preclinical data support the therapeutic use of RGS plus αPD1+αCTLA4 in RAS/RAF/MEK and/or PI3K pathway-activated melanoma tumors and point to the need for clinical trials to determine the clinical benefit of RGS plus ICB for metastatic melanoma patients who do not respond to ICB alone.
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Project description:The interaction between the transmembrane glycoprotein surface receptor CD40 expressed by skin keratinocytes (KCs) and its T cell-expressed ligand CD154 was suggested to exacerbate inflammatory skin diseases. However, the full spectrum of CD40-mediated effects by KCs underlying this observation is unknown. Therefore, changes in gene expression after CD40 ligation of KCs were studied by microarrays. CD40-mediated activation for 2 hours stimulated the expression of a coordinated network of immune-involved genes strongly interconnected by IL8 and TNF, while after 24 hours anti-proliferative and anti-apoptotic genes were upregulated. CD40 ligation stimulated the production of chemokines that attracted lymphocytes and myeloid cells from peripheral blood mononuclear cells (PBMCs). Thus, CD40-mediated activation of KCs resulted in a highly coordinated response of genes required for the local development and sustainment of adaptive immune responses. The importance of this process was confirmed by a study on the effects of human papilloma virus (HPV) infection to the KCâs response to CD40 ligation. HPV infection clearly attenuated the magnitude of the response to CD40 ligation and consequently the KCâs capacity to attract PBMCs. The fact that HPV attenuates CD40 signalling in KCs indicates the importance of the CD40-CD154 immune pathway in boosting cellular immunity within epithelia. Total RNA from eight 72 hours 50 IU/ml IFNgamma pre-stimulated primary undifferentiated keratinocyte cultures, four uninfected and four HPV-positive, that were either left unstimulated, or stimulated for 2 hours with IFNgamma and Control- or CD40L-expressing L-cells (mouse fibroblasts), or stimulated for 24 hours with IFNgamma and Control- or CD40L-expressing L-cells. The stimulated samples were generated in duplo. 72 samples were generated in total.
2015-10-26 | E-GEOD-54181 | biostudies-arrayexpress
Project description:The CD40-CD40L dyad seems to play a prominent role fostering the immune-inflammatory response triggered by endothelial cell (EC)-T cell interaction. To comprehensively delineate the involvement of CD40 (TNFRSF5) in EC activation, we combined RNAi-mediated CD40 knock-down with comparative genome-wide transcriptional profiling of EC in response to T cell. We report the initiation of a profound stress response in ECs upon CD40-CD40L engagement through early up-regulation, among others, of the major pro-inflammatory NFkB and MAPK/SAPK pathways and their associated transcription factors. Moreover, we have identified novel genes regulated through the CD40-CD40L interaction, and pathways previously unrecognized to be induced by CD40 signaling in ECs. Thus, we document a strong down-regulation of endothelial APLN by CD40-CD40L interaction, which could lead to vascular tone dysfunction in atherosclerotic lesions. Conversely, CD40-mediated up-regulation of the viral immune surveillance system, notably TLR3, IFIH1, RIG-I, and RNASEL, establishes a reverse link from adaptive to innate immunity in ECs. Moreover, systematic enrichment analysis substantiates endothelial CD40 involvement in the transcriptional regulation of gene networks associated with adhesion and motility, immunity, cell fate control, hemostasis and metabolism. Our study also highlights the potency and specificity of CD40 siRNA mediated inhibition, and the relevance of CD40 signaling pathways for anti-inflammatory therapeutic intervention. Experiment Overall Design: Time course experiment comparing endothelial gene expression profiling of CD40-silenced versus non-silenced cultured cells using RNA interference. Two independent experiments were performed where HUVECs were siRNA-transfected and co-cultured with Jurkat D1.1 for 4, 10, 16 h and harvested for RNA extraction. Technical dye swap duplicates were performed for each of the two biological replicates in all three time points.
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Project description:Treating samples with anti-CD40, and antibiotics to establish what transcriptional impact antibiotics is having. Anti-CD40 was found to induce a strong inflammatory signature. Antibiotics in combination with anti-CD40 attenuated this resulting in a much improved phenotype. However the detectable transcriptional differences were somewhat modest.
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