Clinical and Immunological Responses to Combined JAK Inhibition and PD-1 immunotherapy for Lung Cancer Patients
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1106397 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR28875900.fastq.gz | Fastqsanger.gz | |||
| SRR28876000.fastq.gz | Fastqsanger.gz | |||
| SRR28876100.fastq.gz | Fastqsanger.gz | |||
| SRR28875901.fastq.gz | Fastqsanger.gz | |||
| SRR28876001.fastq.gz | Fastqsanger.gz |
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Project description:Persistent inflammation driven by cytokines like type-one interferon (IFN-I) can cause immunosuppression. We show that administration of the JAK1 inhibitor itacitinib after anti-PD1 immunotherapy improves immune function and anti-tumor responses in mice, and results in high response rates (67%) in a phase-2 clinical trial for metastatic non-small cell lung cancer. Patients who failed to respond to initial anti-PD1 immunotherapy but responded after addition of itacitinib had multiple features of poor immune function to anti-PD1 alone that improved after JAK inhibition. Itacitinib promoted CD8 T cell plasticity and therapeutic responses of exhausted- and effector-memory-like T cell clonotypes. Patients with persistent inflammation refractory to itacitinib showed progressive CD8 T cell terminal differentiation and progressive disease. Thus, JAK inhibition may improve the efficacy of anti-PD1 immunotherapy by pivoting T cell differentiation dynamics.
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2017-12-20 | E-MTAB-6214 | biostudies-arrayexpress
Project description:Whereas some cancer types (e.g. melanoma) can be efficiently treated with immunotherapy, others lack measurable positive effects (e.g. PDAC ). Moreover, stratification of responders/non-responders is only possible in some cancer types (e.g. melanoma). Hepatocellular carcinoma (HCC) has a dismal prognosis, limited treatment options and survival benefit, and represents a potential cancer entity for successful immunotherapy. Here, we investigated NASH -triggered HCC in the context PD-1-targeted immunotherapy. Using flow cytometry, single cell RNA sequencing, immunohistochemistry and mass spectrometric analyses, we found a progressive increase of CD8+PD-1+ effector T-cells with a unique profile of exhaustion and activation markers rising with murine and human NASH severity. Notably, late-stage HCC treatment with PD-1-targeted immunotherapy enhanced hepatic carcinogenesis in mice. To dissect potential mechanisms of action during tumor-initiation and -progression we analyzed the effects of PD-1-targeted immunotherapy at HCC initiation. Anti-PD-1 treatment induced a pro-tumorigenic environment, enhanced necro-inflammation and increased NAFLD -activation score (NAS), leading to increased liver cancer incidence, tumor number and nodule size. In contrast, anti-CD8 treatment reduced NAS and abrogated the development of liver cancer, thus identifying CD8+PD-1+ T-cells as drivers of liver cancer in NASH-triggered HCC. Increased apoptotic signaling, STAT3 phosphorylation and hepatic proliferation were detected in intra-tumoral liver tissue upon PD-1-targeted immunotherapy. In line, PD-1-/- mice challenged with a NASH diet displayed early onset of hepatocarcinogenesis, corroborating the pro-tumorigenic role of absent or reduced PD-1. Mechanistically PD-1-targeted immunotherapy increased hepatic abundance of CD8+PD-1+Tox+CXCR6+CD8+PD-1+TNF+CD39+Gzmb+ T cells found in NASH livers, creating a pro-tumorigenic liver environment .
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Project description:The ability to modulate immune-inhibitory pathways using checkpoint blockade antibodies such as PD-1, PD-L1, and CTLA-4 represents a significant breakthrough in cancer therapy in recent years. This has driven interest in identifying small-molecule-immunotherapy combinations to increase the proportion of responses. Murine syngeneic models, which have a functional immune system, represent an essential tool for pre-clinical evaluation of new immunotherapies. However, immune response varies widely between models and the translational relevance of each model is not fully understood, making selection of an appropriate pre-clinical model for drug target validation challenging. Utilizing RNAseq transcriptomic profiling, we have characterised the changes in gene regulatory pathways and immune populations in CT26 mice after treatment with the combination of anti-PD-L1 and anti-CTLA-4 antibodies. At day 7 post tumor implant, the pathways analysis of differentially expressed genes indicated an enrichment for migration of leukocytes in response to inflammation and communication between innate and adaptive immune cells. Similarly, analysis of upstream regulators suggested that lipopolysaccharide, IL-1B, TNF, IFNG, and NFKB1A pathways associated with inflammation were activated. At day 14, pathways related T-helper cell signalling pathways were upregulated. In addition, upstream regulators of the lipopolysaccharide and IFNG pathway, as well STAT1 and IL21 pathway were enriched, indicative of innate and adaptive immune response to inflammation.
2020-04-16 | E-MTAB-7777 | biostudies-arrayexpress
Project description:Pre-treatment tumor expression of PD-L1 has been shown to correlate with favorable clinical outcomes following PD-1 blocking therapies. However, the majority of patients with PD-L1+ tumors do not respond to treatment. With the goal of obtaining insights into the mechanisms underlying the response to anti-PD-1 targeted therapies in patients with renal cell carcinoma (RCC) with positive tumor expression of PD-L1, microarray expression data was obtained for pre-treatment tumors from patients with RCC who did or did not have a positive response to anti-PD-1 (nivolumab) therapy. Insight into these mechanisms may lead to improved rationally designed therapies, and biomarkers for selecting patients who are more likely to benefit from these treatments. Gene expression profiling was performed on total RNA extracted from 11 formalin-fixed paraffin-embedded (FFPE) RCC specimens, 4 of which were from patients who had a positive response (objective tumor regression) to the anti-PD-1 (nivolumab) immunotherapy, and 7 of which were from patients who did not have a response. Details of the design, and the gene signatures found are given in the paper associated with this GEO Series: Maria Libera Ascierto, Tracee L. McMiller, Alan E. Berger, Ludmila Danilova, Robert A. Anders, George J. Netto, Haiying Xu, Theresa S. Pritchard, Jinshui Fan, Chris Cheadle, Leslie Cope, Charles G. Drake, Drew M. Pardoll, Janis M. Taube, and Suzanne L. Topalian, The Intratumoral Balance between Metabolic and Immunologic Gene Expression Is Associated with Antiâ??PD-1 Response in Patients with Renal Cell Carcinoma, published online in Cancer Immunology Research on 4 August 2016, doi: 10.1158/2326-6066.CIR-16-0072 http://cancerimmunolres.aacrjournals.org/content/early/2016/07/28/2326-6066.CIR-16-0072.full.pdf+html
2016-08-04 | E-GEOD-67501 | biostudies-arrayexpress