1
|
Nakamura K, Yaguchi T, Murata M, Ota Y, Mikoshiba A, Kiniwa Y, Okuyama R, Kawakami Y. Tumor eradication by triplet therapy with BRAF inhibitor, TLR 7 agonist, and PD-1 antibody for BRAF-mutated melanoma. Cancer Sci 2024. [PMID: 38894534 DOI: 10.1111/cas.16251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 05/14/2024] [Accepted: 06/02/2024] [Indexed: 06/21/2024] Open
Abstract
Programmed death 1 (PD-1)/programmed death-ligand 1 inhibitors are commonly used to treat various cancers, including melanoma. However, their efficacy as monotherapy is limited, and combination immunotherapies are being explored to improve outcomes. In this study, we investigated a combination immunotherapy involving an anti-PD-1 antibody that blocks the major adaptive immune-resistant mechanisms, a BRAF inhibitor that inhibits melanoma cell proliferation, and multiple primary immune-resistant mechanisms, such as cancer cell-derived immunosuppressive cytokines, and a Toll-like receptor 7 agonist that enhances innate immune responses that promote antitumor T-cell induction and functions. Using a xenogeneic nude mouse model implanted with human BRAF-mutated melanoma, a BRAF inhibitor vemurafenib was found to restore T-cell-stimulatory activity in conventional dendritic cells by reducing immunosuppressive cytokines, including interleukin 6, produced by human melanoma. Additionally, intravenous administration of the Toll-like receptor 7 agonist DSR6434 enhanced tumor growth inhibition by vemurafenib through stimulating the plasmacytoid dendritic cells/interferon-α/natural killer cell pathways and augmenting the T-cell-stimulatory activity of conventional dendritic cells. In a syngeneic mouse model implanted with murine BRAF-mutated melanoma, the vemurafenib and DSR6434 combination synergistically augmented the induction of melanoma antigen gp100-specific T cells and inhibited tumor growth. Notably, only triplet therapy with vemurafenib, DSR6434, and the anti-PD-1 antibody resulted in complete regression of SIY antigen-transduced BRAF-mutated melanoma in a CD8 T-cell-dependent manner. These findings indicate that a triple-combination strategy targeting adaptive and primary resistant mechanisms while enhancing innate immune responses that promote tumor-specific T cells may be crucial for effective tumor eradication.
Collapse
Affiliation(s)
- Kenta Nakamura
- Division of Cellular Signaling, Institute for Advanced Medical Research, School of Medicine, Keio University, Tokyo, Japan
- Department of Dermatology, Shinshu University School of Medicine, Nagano, Japan
| | - Tomonori Yaguchi
- Division of Cellular Signaling, Institute for Advanced Medical Research, School of Medicine, Keio University, Tokyo, Japan
- Department of Immunology and Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masashi Murata
- Cancer Research Unit, Sumitomo Pharma Co. Ltd., Osaka, Japan
| | - Yosuke Ota
- Cancer Research Unit, Sumitomo Pharma Co. Ltd., Osaka, Japan
| | - Asuka Mikoshiba
- Department of Dermatology, Shinshu University School of Medicine, Nagano, Japan
| | - Yukiko Kiniwa
- Department of Dermatology, Shinshu University School of Medicine, Nagano, Japan
| | - Ryuhei Okuyama
- Department of Dermatology, Shinshu University School of Medicine, Nagano, Japan
| | - Yutaka Kawakami
- Division of Cellular Signaling, Institute for Advanced Medical Research, School of Medicine, Keio University, Tokyo, Japan
- Department of Immunology, School of Medicine, International University of Health and Welfare, Chiba, Japan
| |
Collapse
|
2
|
Peng JM, Su YL. Lymph node metastasis and tumor-educated immune tolerance: Potential therapeutic targets against distant metastasis. Biochem Pharmacol 2023; 215:115731. [PMID: 37541450 DOI: 10.1016/j.bcp.2023.115731] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 07/30/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
Lymph node metastasis has been shown to positively associated with the prognosis of many cancers. However, in clinical treatment, lymphadenectomy is not always successful, suggesting that immune cells in the tumor and sentinel lymph nodes still play a pivotal role in tumor immunosuppression. Recent studies had shown that tumors can tolerate immune cells through multiple strategies, including tumor-induced macrophage reprogramming, T cells inactivation, production of B cells pathogenic antibodies and activation of regulatory T cells to promote tumor colonization, growth, and metastasis in lymph nodes. We reviewed the bidirectional effect of immune cells on anti-tumor or promotion of cancer cell metastasis during lymph node metastasis, and the mechanisms by which malignant cancer cells modify immune cells to create a more favorable environment for the growth and survival of cancer cells. Research and treatment strategies focusing on the immune system in lymph nodes and potential immune targets in lymph node metastasis were also be discussed.
Collapse
Affiliation(s)
- Jei-Ming Peng
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, No. 123, Dapi Rd., Niaosong Dist., Kaohsiung, 83301, Taiwan.
| | - Yu-Li Su
- Division of Hematology Oncology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, No. 123, Dapi Rd., Niaosong Dist., Kaohsiung, 83301, Taiwan.
| |
Collapse
|
3
|
T Cell Immunoglobulin and Mucin Domain 3 (TIM-3) in Cutaneous Melanoma: A Narrative Review. Cancers (Basel) 2023; 15:cancers15061697. [PMID: 36980583 PMCID: PMC10046653 DOI: 10.3390/cancers15061697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/06/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023] Open
Abstract
T cell immunoglobulin and mucin domain 3 (TIM-3) is an inhibitory immunocheckpoint that belongs to the TIM gene family. Monney et al. first discovered it about 20 years ago and linked it to some autoimmune diseases; subsequent studies have revealed that some tumours, including melanoma, have the capacity to produce inhibitory ligands that bind to these receptor checkpoints on tumour-specific immune cells. We conducted a literature search using PubMed, Web of Science (WoS), Scopus, Google Scholar, and Cochrane, searching for the following keywords: “T cell immunoglobulin and mucin-domain containing-3”, “TIM-3” and/or “Immunocheckpoint inhibitors” in combination with “malignant melanoma” or “human malignant melanoma” or “cutaneous melanoma”. The literature search initially turned up 117 documents, 23 of which were duplicates. After verifying eligibility and inclusion criteria, 17 publications were ultimately included. A growing body of scientific evidence considers TIM-3 a valid inhibitory immuno-checkpoint with a very interesting potential in the field of melanoma. However, other recent studies have discovered new roles for TIM-3 that seem almost to contradict previous findings in this regard. All this demonstrates how common and valid the concept of ‘pleiotropism’ is in the TME field, in that the same molecule can behave completely or partially differently depending on the cell type considered or on temporary conditions. Further studies, large case series, and a special focus on the immunophenotype of TIM-3 are absolutely necessary in order to explore this highly promising topic in the near future.
Collapse
|
4
|
Inozume T, Fukushima S. Clues for developing next-generation cancer immunotherapy. Exp Dermatol 2023; 32:238-239. [PMID: 36707074 DOI: 10.1111/exd.14751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/29/2023]
Affiliation(s)
- Takashi Inozume
- Department of Dermatology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Satoshi Fukushima
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| |
Collapse
|