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Neoadjuvant anlotinib combined with PD-1 blockade therapy remodeling the microenvironment in advanced non-small cell lung cancer

ABSTRACT: Neoadjuvant anlotinib combined with PD-1 blockade therapy can prolong the survival of patients, but the underlying mechanisms for the failure of patients to benefit from combination therapy remain to be explored. To explore the mechanism of drug resistance and predict patient response, we performed scRNA-seq from 6 NSCLC patients, including 3 post-treatment patients with major pathological response (MPR), and 3 Non-MPR patients to observe and analyze the dynamic changes of immune cells, stromal cells and cancer cells from the NSCLC patients who received neoadjuvant anlotinib combined with PD-1 blockade therapy and verified in an independent cohort.

ORGANISM(S): Homo sapiens

PROVIDER: GSE291670 | GEO | 2025/03/31

REPOSITORIES: GEO

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Role of Anlotinib-induced CCL2 decrease in anti-angiogensis and response prediction for Non-Small Cell Lung Cancer therapy

Project description:Purpose: Our previous clinical trials have been demonstrated that Anlotinib can inhibit tumor growth upon refractory advanced non-small cell lung cancer (NSCLC) patients with the possibility mechanism of anti-angiogenesis. The present study sought to reveal the underlying molecular mechanism of Anlotinib-induced anti-angiogenesis in advanced NSCLC. Experimental Design: Computed tomography (CT) was used to evaluate the treatment effect of Anlotinib upon refractory advanced NSCLC patients. Transcriptome profiling was performed to identify the key gene expression alteration in NCI-H1975 cells before and after Anlotinib treatment. NCI-H1975 derived xenograft model was applied to investigate treatment effect and verify anti-angiogenesis mechanism of Anlotinib. Results: Anlotinib induces tumor cytotoxicity on refractory advanced NSCLC patients, NCI-H1975 derived xenograft models and lung adenocarcinoma cell lines. Transcriptome profiling revealed CCL2 blockade could be responsible for Anlotinib-induced anti-angiogenesis. NCI-H1975 derived xenograft model demonstrated Anlotinib-induced CCL2 blockade play an important role in anti-angiogenesis. Conclusions: This study not only offered the first evidence that Anlotinib inhibits angiogenesis via blocking CCL2 expression, but also provided a novel theoretical basis for the application of Anlotinib in advanced NSCLC patients.

2018-11-30 | E-MTAB-5997 | biostudies-arrayexpress

Neoadjuvant anlotinib combined with PD-1 blockade therapy remodeling the microenvironment in advanced non-small cell lung cancer

Project description:Neoadjuvant anlotinib combined with PD-1 blockade therapy remodeling the microenvironment in advanced non-small cell lung cancer

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Transcriptome profiling of Anlotinib-resistant NCI-H1975 and Anlotinib-treated Anlotinib-resistant NCI-H1975

Project description:Further to our previous study (E-MTAB-5997), here we performed transcriptome profiling on Anlotinib-resistant NCI-H1975 and Anlotinib-treated Anlotinib-resistant NCI-H1975, and would like to understand the effects of Anlotinib on Anlotinib-resistant NCI-H1975 cell, compare the different transcriptome profiling on NCI-H1975 cells and Anlotinib-resistant NCI-H1975 cells, sought to find the biomarker for explaining Anlotinib resistance.

2019-07-01 | E-MTAB-7068 | biostudies-arrayexpress

Enhancing Tumor Targeting of Antitumor Drugs through Anlotinib-Mediated Modulation of Extracellular Matrix and RhoA/ROCK Signaling Pathway

Project description:In this study, our research focused on investigating the impact of Anlotinib in enhancing the tumor targeting of antitumor drugs in vivo. Through RNA-sequencing and Label-free quantitative proteomics analysis, we discovered that Anlotinib effectively regulated the expression of extracellular matrix (ECM) genes and proteins, leading to a significant reduction in ECM stiffness. Our bioinformatic analysis indicated a potential positive relationship between the ECM pathways and gefitinib resistance, poor PD-1 treatment outcomes, as well as unfavorable prognosis in lung cancer patients following chemotherapy. To evaluate the efficacy of Anlotinib, we administered it in combination with anti-PD-1/PD-L1 agents, chemotherapeutic drugs, and gefitinib, and visualized their distribution using fluorescent labeling in various tumor types. Notably, our results demonstrated that Anlotinib substantially improved the drug targeting process by prolonging the retention time of antitumor drugs at the tumor site. Moreover, the combination therapy induced a notable loosening of the tumor tissue structure compared to the control group. This reduction in stiffness was further associated with decreased interstitial fluid pressures and tumor solid pressure. Additionally, we observed that Anlotinib effectively suppressed the RhoA/ROCK signaling pathway, inhibiting the formation of stress fibers. These findings strongly suggest that Anlotinib enhances the distribution and retention of antitumor drugs in tumors by modulating ECM expression and physical properties through the RhoA/ROCK signaling pathway. These valuable insights contribute to the development of combination therapies aimed at improving tumor targeting in cancer treatment.

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MEK Inhibitor Trametinib combined with RTK Inhibitor Anlotinib in KRAS-Mutant Lung Cancer

Project description:Oncogenic KRAS mutations frequently detected in non-small cell lung cancer (NSCLC) have been considered undruggable until recent development of inhibitors, e.g., sortorasib, adagrasib or divarasib, specifically targeting KRASG12C. However, it still remains as a big challenge to target all the KRAS mutants besides KRASG12C. We here found that MEK inhibitor trametinib treatment results in the feedback activation of multiple receptor tyrosine kinases (RTKs) in NSCLC, and combined treatments with trametinib and anlotinib, a pan-RTK inhibitor, effectively inhibited KRAS-mutant lung cancer progression.

2024-12-08 | GSE283634 | GEO

Chromatin accessibility analysis uncovers TFAP2A as a regulator on pro-angiogenesis of acquired resistance to anlotinib

Project description:Anlotinib, a multitarget agent a multi-target agent that inhibits tumor proliferation and angiogenesis, has been demonstrated to be effective for non-small cell lung cancer (NSCLC) at third-line or over third-line. However, the underlying mechanisms of anlotinib acquired-resistance is still unclear. Here we performed chromatin accessibility profiling on anlotinib-resistant NCI-H1975 and wild-type NCI-H1975. By integrating with transcriptome analysis, we found that anlotinib resistance was due to increased angiogenic capacity, and revealed that TFAP2A was involved in anlotinib resistance. Next, TFAP2A was knock-down in anlotinib-resistant cells and RNAseq was performed to see down-regulated genes with TFAP2A KD.

2020-11-09 | GSE142031 | GEO

Soluble immune-checkpoint factors as a complementary biomarker for PD-1 blockade reflect exhaustion of antitumor immunity

Project description:BACKGROUND. Precise stratification of patients with non–small cell lung cancer (NSCLC) is needed for appropriate application of PD-1/PD-L1 blockade therapy. METHODS. We measured soluble (s) forms of the PD-L1, PD-1, and CTLA-4 in plasma of patients with advanced NSCLC before PD-1/PD-L1 blockade. Prospective biomarker finding trial (cohort A), 50 patients with pretreated NSCLC received nivolumab. In cohort B to E, retrospective observational study, soluble immune checkpoint molecules were evaluated for patients with advanced NSCLC treated with any PD-1/PD-L1 blockade (cohort B and C), cytotoxic chemotherapy (D) or targeted therapy (E). Blood samples were obtained from all patients and soluble immune checkpoint molecules were evaluated using a highly sensitive chemiluminescence-based assay. RESULTS. Nonresponsiveness to PD-1/PD-L1 blockade therapy was associated with higher concentrations of these soluble immune factors among patients with immune-reactive (hot) tumors. Such correlation was not observed in patients treated with cytotoxic chemotherapy or targeted therapies. Integrative analysis of tumor size, PD-L1 expression in tumor tissue (tPD-L1), and gene expression in tumor tissue and peripheral CD8+ T cells revealed that high concentrations of the three soluble immune factors were associated with hyper or terminal exhaustion of antitumor immunity. The combination of sPD-L1 and sCTLA-4 efficiently discriminated responsiveness among patients with immune-reactive tumors. CONCLUSION. Combinations of soluble immune factors might be able to identify patients unlikely to respond to PD-1/PD-L1 blockade as a result of terminal exhaustion of antitumor immunity. Our data suggest such a combination might provide a biomarker complementary to tPD-L1 for NSCLC patients.

2024-03-30 | GSE242860 | GEO

High efficacy of combined MEK Inhibitor Trametinib and RTK Inhibitor Anlotinib Therapy in KRAS-Mutant Lung Cancer

Project description:Oncogenic KRAS mutations frequently detected in non-small cell lung cancer (NSCLC)1,2, have been considered undruggable until recent development of inhibitors, e.g., sortorasib, adagrasib or divarasib, specifically targeting KRASG12C 3-6. However, it still remains as a big challenge to target all the KRAS mutants besides KRASG12C 2,7,8. We here found that MEK inhibitor trametinib treatment results in the feedback activation of multiple receptor tyrosine kinases (RTKs) in NSCLC, and combined treatments with trametinib and anlotinib, a pan-RTK inhibitor, effectively inhibited KRAS-mutant lung cancer progression.

2024-11-11 | GSE247512 | GEO

PD-1 blockade potentiates neoadjuvant chemotherapy in NSCLC via increasing CD127+ and KLRG1+ CD8 T cells

Project description:The combination of PD-1 blockade with neoadjuvant chemotherapy (NAC) has achieved unprecedented clinical success in non-small-cell lung cancer (NSCLC) compared to NAC alone, but the underlying mechanisms by which PD-1 blockade augments the effects of chemotherapy remain incompletely elucidated. Single-cell RNA sequencing was performed on CD45+ immune cells isolated from surgically resected fresh tumor tissues of seven NSCLC patients receiving NAC or neoadjuvant pembrolizumab and chemotherapy (NAPC). Multiplex fluorescent immunohistochemistry was performed on paired FFPE tissues before and after NAC or NAPC from 65 resectable NSCLC patients, and results were validated with GEO dataset. NAC resulted in an increase only of CD20+ B cells, whereas NAPC increased the infiltration of CD20+ B cells, CD4+ T cells, CD4+CD127+ T cells, CD8+ T cells, CD8+CD127+ and CD8+KLRG1+ T cells. Synergistic increase in B and T cells promotes favorable therapeutic response after NAPC. Spatial distribution analysis discovered that CD8+ T cells and their CD127+ and KLRG1+ subsets were in closer proximity to CD4+ T/CD20+ B cells in NAPC versus NAC. GEO dataset validated that B-cell, CD4, memory and effector CD8 signatures correlated with therapeutic responses and clinical outcomes. The adding of PD-1 blockade to NAC promoted anti-tumor immunity through T and B cells recruitment in the tumor microenvironment and induced tumor-infiltrating CD8+ T cells skewed toward CD127+ and KLRG1+ phenotypes，which may be assisted by CD4+ T cells and B cells. Our comprehensive study identified key immune cell subsets exerting anti-tumor responses during PD-1 blockade therapy and that may be therapeutically targeted to improve upon existing immunotherapies for NSCLC.

2023-05-16 | GSE229353 | GEO

Neoadjuvant anti-PD-1 immunotherapy promotes a survival benefit with intratumoral and systemic immune responses in recurrent glioblastoma

Project description:Glioblastoma is the most common primary malignant brain tumor in adults and associated with poor survival. Standard-of-care chemotherapy and radiation confer a median overall survival of under two years. The Ivy Foundation Early Phase Clinical Trials Consortium conducted a randomized, multi institution clinical trial to evaluate immune responses and survival following neoadjuvant and/or adjuvant therapy with pembrolizumab, a programmed cell death protein 1 (PD-1) monoclonal antibody, in 35 patients with recurrent, surgically resectable glioblastoma. Patients who were randomized to receive neoadjuvant pembrolizumab, with continued adjuvant therapy following surgery, had significantly extended overall survival compared to patients that were randomized to receive adjuvant, post-surgical PD-1 blockade alone (hazard ratio = 0.39; P = 0.04, log-rank test). Neoadjuvant PD-1 blockade was associated with upregulation of T cell and interferon-γ-related genes, but downregulation of cell cycle related genes within the tumor, which was not seen in patients that received adjuvant therapy alone. Focal induction of programmed death-ligand 1 (PD-L1) in the tumor microenvironment was observed more frequently in the neoadjuvant group than in tumors obtained from patients treated only in the adjuvant setting. Similarly, neoadjuvant pembrolizumab was associated with clonal T cell expansion and the overlap of T cell receptors between tumor and blood, decreased PD-1 expression in T cells and a decreasing peripheral monocytic population. These findings suggest that the neoadjuvant administration of PD-1 blockade enhances the local and systemic anti-tumor immune response and may represent a more efficacious approach to the treatment of this uniformly lethal brain tumor. This trial was registered with ClinicalTrials.gov under the identifier NCT02852655 (https://clinicaltrials.gov/ct2/show/NCT02852655).

2018-12-05 | GSE121810 | GEO

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