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Lung Cancer Immunotherapy: Beyond Common Immune Checkpoints Inhibitors.

ABSTRACT: Immunotherapy is an ever-expanding field in lung cancer treatment research. Over the past two decades, there has been significant progress in identifying immunotherapy targets and creating specific therapeutic agents, leading to a major paradigm shift in lung cancer treatment. However, despite the great success achieved with programmed death protein 1/ligand 1 (PD-1/PD-L1) monoclonal antibodies and with anti-PD-1/PD-L1 plus anti-cytotoxic T-lymphocyte antigen 4 (CTLA-4), only a minority of lung cancer patients respond to treatment, and of these many subsequently experience disease progression. In addition, immune-related adverse events sometimes can be life-threatening, especially when anti-CTLA-4 and anti-PD-1 are used in combination. All of this prompted researchers to identify novel immune checkpoints targets to overcome these limitations. Lymphocyte activation gene-3 (LAG-3), T cell immunoglobulin (Ig) and Immunoreceptor Tyrosine-Based Inhibitory Motif (ITIM) domain (TIGIT), T cell immunoglobulin and mucin-domain containing-3 (TIM-3) are promising molecules now under investigation. This review aims to outline the current role of immunotherapy in lung cancer and to examine efficacy and future applications of the new immune regulating molecules.

SUBMITTER: Catalano M

PROVIDER: S-EPMC9777293 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature

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Lung Cancer Immunotherapy: Beyond Common Immune Checkpoints Inhibitors.

Catalano Martina M Shabani Sonia S Venturini Jacopo J Ottanelli Carlotta C Voltolini Luca L Roviello Giandomenico G

Cancers 20221213 24

Immunotherapy is an ever-expanding field in lung cancer treatment research. Over the past two decades, there has been significant progress in identifying immunotherapy targets and creating specific therapeutic agents, leading to a major paradigm shift in lung cancer treatment. However, despite the great success achieved with programmed death protein 1/ligand 1 (PD-1/PD-L1) monoclonal antibodies and with anti-PD-1/PD-L1 plus anti-cytotoxic T-lymphocyte antigen 4 (CTLA-4), only a minority of lung ...[more]

PMID: 36551630

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Project description:Malignant cells have the capacity to rapidly grow exponentially and spread in part by suppressing, evading, and exploiting the host immune system. Immunotherapy is a form of oncologic treatment directed towards enhancing the host immune system against cancer. In recent years, manipulation of immune checkpoints or pathways has emerged as an important and effective form of immunotherapy. Agents that target cytotoxic T lymphocyte-associated molecule-4 (CTLA-4), programmed cell death receptor-1 (PD-1), and programmed cell death ligand-1 (PD-L1) are the most widely studied and recognized. Immunotherapy, however, extends beyond immune checkpoint therapy by using new molecules such as chimeric monoclonal antibodies and antibody drug conjugates that target malignant cells and promote their destruction. Genetically modified T cells expressing chimeric antigen receptors are able to recognize specific antigens on cancer cells and subsequently activate the immune system. Native or genetically modified viruses with oncolytic activity are of great interest as, besides destroying malignant cells, they can increase anti-tumor activity in response to the release of new antigens and danger signals as a result of infection and tumor cell lysis. Vaccines are also being explored, either in the form of autologous or allogenic tumor peptide antigens, genetically modified dendritic cells that express tumor peptides, or even in the use of RNA, DNA, bacteria, or virus as vectors of specific tumor markers. Most of these agents are yet under development, but they promise to be important options to boost the host immune system to control and eliminate malignancy. In this review, we have provided detailed discussion of different forms of immunotherapy agents other than checkpoint-modifying drugs. The specific focus of this manuscript is to include first-in-human phase I and phase I/II clinical trials intended to allow the identification of those drugs that most likely will continue to develop and possibly join the immunotherapeutic arsenal in a near future.

Project description:Immune checkpoints are small molecules expressed by immune cells that play critical roles in maintaining immune homeostasis. Targeting the immune checkpoints cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and programmed death 1 (PD-1) with inhibitory antibodies has demonstrated effective and durable antitumor activity in subgroups of patients with cancer. The US Food and Drug Administration has approved several immune checkpoint inhibitors (ICPis) for the treatment of a broad spectrum of malignancies. Endocrinopathies have emerged as one of the most common immune-related adverse events (irAEs) of ICPi therapy. Hypophysitis, thyroid dysfunction, insulin-deficient diabetes mellitus, and primary adrenal insufficiency have been reported as irAEs due to ICPi therapy. Hypophysitis is particularly associated with anti-CTLA-4 therapy, whereas thyroid dysfunction is particularly associated with anti-PD-1 therapy. Diabetes mellitus and primary adrenal insufficiency are rare endocrine toxicities associated with ICPi therapy but can be life-threatening if not promptly recognized and treated. Notably, combination anti-CTLA-4 and anti-PD-1 therapy is associated with the highest incidence of ICPi-related endocrinopathies. The precise mechanisms underlying these endocrine irAEs remain to be elucidated. Most ICPi-related endocrinopathies occur within 12 weeks after the initiation of ICPi therapy, but several have been reported to develop several months to years after ICPi initiation. Some ICPi-related endocrinopathies may resolve spontaneously, but others, such as central adrenal insufficiency and primary hypothyroidism, appear to be persistent in most cases. The mainstay of management of ICPi-related endocrinopathies is hormone replacement and symptom control. Further studies are needed to determine (i) whether high-dose corticosteroids in the treatment of ICPi-related endocrinopathies preserves endocrine function (especially in hypophysitis), and (ii) whether the development of ICPi-related endocrinopathies correlates with tumor response to ICPi therapy.

Project description:BackgroundImmunotherapy, monotherapy, and immunotherapy plus platinum-based chemotherapy are the standard treatments for advanced non-small cell lung cancer (NSCLC) patients with negative driver genes. However, the impact of similar continuing immunotherapy beyond progression (IBP) of first-line immunotherapy for advanced NSCLC has not yet been shown. This study aimed to estimate the impact of immunotherapy beyond first-line progression (IBF) and evaluate the factors associated with second-line efficacity.MethodsNinety-four cases of advanced NSCLC patients with progressive disease (PD) post first-line treatment with platinum-based chemotherapy plus immunotherapy and administrated prior immune checkpoint inhibitors (ICIs) between November 2017 and July 2021 were retrospectively analyzed. Survival curves were plotted using the Kaplan-Meier method. Cox proportional hazards regression analyses were applied to determine predictive factors independently associated with second-line efficacity.ResultsA total of 94 patients were incorporated in this study. Patients who continued the original ICIs after initial PD were defined as IBF (n=42), whereas those who discontinued immunotherapy were defined as non-IBF (n=52). The second-line objective response rates (ORR, ORR = CR + PR) of patients in the IBF and non-IBF groups were 13.5% vs. 28.6%, respectively (P=0.070). No significant survival difference was found between patients in the IBF and non-IBF groups in first-line median progression-free survival (PFS) (mPFS1, 6.2 vs. 5.1 months, P=0.490), second-line median PFS (mPFS2, 4.5 vs. 2.6 months, P=0.216), or median overall survival (OS) (mOS, 14.4 vs. 8.3 months, P=0.188). However, the benefits inPFS2 were observed in individuals performed PFS1 >6 months (group A) than those of PFS1 ≤6 months (group B) (median PFS2, 4.6 vs. 3.2 months, P=0.038). Multivariate analyses did not reveal any independent prognostic factors for efficacy.ConclusionsThe benefits of continuing prior ICIs administration beyond first-line immunotherapy progression might not be obvious in patients with advanced NSCLC, but those first line treatment showed a longer period may receive efficacy benefits.

Dataset Information

Lung Cancer Immunotherapy: Beyond Common Immune Checkpoints Inhibitors.

Publications

Lung Cancer Immunotherapy: Beyond Common Immune Checkpoints Inhibitors.

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