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Shen L, Chen Z, Zhang Z, Wu Y, Ren Y, Li Y, Li Y, Yin X, Han F, Chen Y. Clinical Efficacy of Taxol Plus Platinum (TP) Chemotherapy Combined with Delayed Administration of PD-1 Inhibitors in Patients with Locally Advanced, Recurrent or Metastatic Esophageal Squamous Cell Carcinoma: A Retrospective Study. Drug Des Devel Ther 2024; 18:2761-2773. [PMID: 38979399 PMCID: PMC11230125 DOI: 10.2147/dddt.s455248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 06/19/2024] [Indexed: 07/10/2024] Open
Abstract
Purpose Immune checkpoint inhibitors (ICIs) combined with chemotherapy have become the first-line standard treatment for locally advanced or metastatic esophageal squamous cell carcinoma (ESCC). The evidence also demonstrates improved synergistic effects of chemotherapy when combined with delayed administration of ICIs. In this study, we conducted a retrospective investigation into the treatment efficacy of taxol plus platinum (TP) chemotherapy combined with delayed administration of PD-1 inhibitors for ESCC patients. Patients and Methods Clinical data of ESCC patients who received PD-1 inhibitors 3-5 days after TP chemotherapy as first-line treatment was retrospectively reviewed between January 2019 and April 2023. Clinical outcomes and treatment safety were analyzed. The potential roles of neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), monocyte-to-lymphocyte ratio (MLR), and pan-immune-inflammation value (PIV) were investigated. Results A total of 34 locally advanced, recurrent or metastatic ESCC patients received PD-1 inhibitors 3-5 days following TP chemotherapy were included. The objective response rate (ORR) and disease control rate (DCR) were 85.3% and 97.1% respectively. The median progression-free survival (PFS) and overall survival (OS) were 13.2 and 19.1 month respectively. Seven patients received radical surgery, 1 patient achieved pathologic complete response (pCR) and 3 patients achieved major pathologic response (MPR). Among the 27 patients without surgery, the median PFS and OS were 9.7 and 19.1 month respectively. A more favorable prognosis was correlated with NLR less than 3 at the 3rd and 4th cycle of immunochemotherapy. No significant correlations between other parameters (PLR, MLR and PIV) and prognosis were observed. A total of 22 patients developed grade 3-4 toxicity events. Conclusion The optimized sequence of PD-1 inhibitors administered 3-5 days after TP chemotherapy as the first-line treatment of ESCC demonstrated favorable treatment efficacy. Pretreatment NLR of less than 3 at the 3rd and 4th cycle of immunochemotherapy is associated with a better prognosis.
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Affiliation(s)
- Lin Shen
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
| | - Zixuan Chen
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
| | - Zhi Zhang
- Department of Medical Oncology, Baoying Clinical College, Medical College of Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
| | - Yunjiang Wu
- Department of Thoracic Surgery, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
| | - Yue Ren
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
| | - Ying Li
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
| | - Yue Li
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
| | - Xudong Yin
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
| | - Fang Han
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
| | - Yong Chen
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou City, Jiangsu Province, People's Republic of China
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Chen B, Vijayakumar A, Park C, Choi U, Nah SY, Kim JH. Gintonin upregulates cytokine production and expression of NKp30, NKp44 and NKp44 related to natural killer cell activity on immunosuppressive rat. J Ginseng Res 2024; 48:341-345. [PMID: 38707639 PMCID: PMC11068941 DOI: 10.1016/j.jgr.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/06/2023] [Accepted: 12/06/2023] [Indexed: 05/07/2024] Open
Abstract
The objective of the study is to estimate the potential of gintonin, as an immune enhancing agent through natural killer cell (NK cell) activity in cyclophosphamide (CY)-induced immunosuppressive animals. Accumulated results reveals that, gintonin attenuated CY-induced immunosuppression and it might modulate NK cell activity to boost the immunity.
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Affiliation(s)
- BaiCheng Chen
- College of Veterinary Medicine, Biosafety Research Institute, Chonbuk National University, Iksan-city, Jeollabuk-Do, Republic of Korea
| | - Ajay Vijayakumar
- College of Veterinary Medicine, Biosafety Research Institute, Chonbuk National University, Iksan-city, Jeollabuk-Do, Republic of Korea
| | - Chul Park
- College of Veterinary Medicine, Biosafety Research Institute, Chonbuk National University, Iksan-city, Jeollabuk-Do, Republic of Korea
| | - Ulsoo Choi
- College of Veterinary Medicine, Biosafety Research Institute, Chonbuk National University, Iksan-city, Jeollabuk-Do, Republic of Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Jong-Hoon Kim
- College of Veterinary Medicine, Biosafety Research Institute, Chonbuk National University, Iksan-city, Jeollabuk-Do, Republic of Korea
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3
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Harada M, Kotani H, Iida Y, Tanino R, Minami T, Komohara Y, Yoshikawa K, Uemura H. Hypoxia-related carbonic anhydrase 9 induces serpinB9 expression in cancer cells and apoptosis in T cells via acidosis. Cancer Sci 2024; 115:1405-1416. [PMID: 38413363 PMCID: PMC11093193 DOI: 10.1111/cas.16133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 02/15/2024] [Accepted: 02/18/2024] [Indexed: 02/29/2024] Open
Abstract
Hypoxia is a common feature of solid tumors. However, the impact of hypoxia on immune cells within tumor environments remains underexplored. Carbonic anhydrase 9 (CA9) is a hypoxia-responsive tumor-associated enzyme. We previously noted that regardless of human CA9 (hCA9) expression, hCA9-expressing mouse renal cell carcinoma RENCA (RENCA/hCA9) presented as a "cold" tumor in syngeneic aged mice. This study delves into the mechanisms behind this observation. Gene microarray analyses showed that RENCA/hCA9 cells exhibited elevated mouse serpinB9, an inhibitor of granzyme B, relative to RENCA cells. Corroborating this, RENCA/hCA9 cells displayed heightened resistance to antigen-specific cytotoxic T cells compared with RENCA cells. Notably, siRNA-mediated serpinB9 knockdown reclaimed this sensitivity. In vivo tests showed that serpinB9 inhibitor administration slowed RENCA tumor growth, but this effect was reduced in RENCA/hCA9 tumors, even with adjunctive immune checkpoint blockade therapy. Further, inducing hypoxia or introducing the mouse CA9 gene upregulated serpinB9 expression, and siRNA-mediated knockdown of the mouse CA9 gene inhibited the hypoxia-induced induction of serpinB9 in the original RENCA cells. Supernatants from RENCA/hCA9 cultures had lower pH than those from RENCA, suggesting acidosis. This acidity enhanced serpinB9 expression and T cell apoptosis. Moreover, coculturing with RENCA/hCA9 cells more actively prompted T cell apoptosis than with RENCA cells. Collectively, these findings suggest hypoxia-associated CA9 not only boosts serpinB9 in cancer cells but also synergistically intensifies T cell apoptosis via acidosis, characterizing RENCA/hCA9 tumors as "cold."
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Affiliation(s)
- Mamoru Harada
- Department of ImmunologyShimane University Faculty of MedicineShimaneJapan
| | - Hitoshi Kotani
- Department of ImmunologyShimane University Faculty of MedicineShimaneJapan
| | - Yuichi Iida
- Department of ImmunologyShimane University Faculty of MedicineShimaneJapan
| | - Ryosuke Tanino
- Division of Medical Oncology & Respiratory Medicine, Department of Internal MedicineShimane University Faculty of MedicineShimaneJapan
| | - Takafumi Minami
- Department of UrologyKindai University Faculty of MedicineOsakaJapan
| | - Yoshihiro Komohara
- Department of Cell Pathology, Graduate School of Medical ScienceKumamoto UniversityKumamotoJapan
| | | | - Hirotsugu Uemura
- Department of UrologyKindai University Faculty of MedicineOsakaJapan
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4
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Yao S, Han Y, Yang M, Jin K, Lan H. It's high-time to re-evaluate the value of induced-chemotherapy for reinforcing immunotherapy in colorectal cancer. Front Immunol 2023; 14:1241208. [PMID: 37920463 PMCID: PMC10619163 DOI: 10.3389/fimmu.2023.1241208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/09/2023] [Indexed: 11/04/2023] Open
Abstract
Immunotherapy has made significant advances in the treatment of colorectal cancer (CRC), revolutionizing the therapeutic landscape and highlighting the indispensable role of the tumor immune microenvironment. However, some CRCs have shown poor response to immunotherapy, prompting investigation into the underlying reasons. It has been discovered that certain chemotherapeutic agents possess immune-stimulatory properties, including the induction of immunogenic cell death (ICD), the generation and processing of non-mutated neoantigens (NM-neoAgs), and the B cell follicle-driven T cell response. Based on these findings, the concept of inducing chemotherapy has been introduced, and the combination of inducing chemotherapy and immunotherapy has become a standard treatment option for certain cancers. Clinical trials have confirmed the feasibility and safety of this approach in CRC, offering a promising method for improving the efficacy of immunotherapy. Nevertheless, there are still many challenges and difficulties ahead, and further research is required to optimize its use.
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Affiliation(s)
- Shiya Yao
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Yuejun Han
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Mengxiang Yang
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Ketao Jin
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Huanrong Lan
- Department of Surgical Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang, China
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5
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Han X, Guo J, Tang X, Zhu H, Zhu D, Zhang X, Meng X, Hua Y, Wang Z, Zhang Y, Huang W, Wang L, Yuan S, Zhang P, Gong H, Sun Y, Zhang Y, Liu Z, Wang Z. Efficacy and safety of sintilimab plus docetaxel in patients with previously treated advanced non-small cell lung cancer: a prospective, single-arm, phase II study in China. J Cancer Res Clin Oncol 2023; 149:1443-1451. [PMID: 35482078 PMCID: PMC9047475 DOI: 10.1007/s00432-022-04023-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/12/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE Although immune checkpoint inhibitor monotherapy has been used as a second-line treatment in advanced non-small cell lung cancer (NSCLC), the improvement in progression-free survival (PFS) remains unsatisfactory. We investigated the feasibility of sintilimab plus chemotherapy as a second-line treatment in advanced NSCLC. METHODS This was a phase II, single-arm, prospective study in advanced NSCLC patients who had failed standard platinum-based chemotherapy (ChiCTR1900027634, Registered 22 November 2019). Eligible patients received docetaxel 75 mg/m2 (day 1) plus sintilimab 200 mg (day 3) Q3W. Those did not progress after 4-6 cycles received sintilimab 200 mg Q3W as maintenance treatment. The primary endpoint was PFS. RESULTS Forty patients were enrolled between October 2019 and October 2020. With a median follow-up of 12.2 months, the median PFS was 5.8 months, and the PFS rates at 6 and 12 months were 48% and 30%, respectively. The median overall survival (OS) was 12.6 months, with a 12-month OS rate of 62.0%. The overall response rate was 32.4%, and the disease control rate was 89.2%. The incidence of all and ≥ grade 3 treatment-related adverse events (TRAEs) were 65% (26/40) and 17.5% (7/40), respectively. No TRAEs-related permanent treatment discontinuation or death occurred. bTMB reduction at 6 weeks was associated with a longer PFS (NR vs 3.0 months, P < 0.0001). CONCLUSION This prospective phase II study in China suggested that sintilimab plus docetaxel might improve PFS and tumor response with good tolerability for Chinese patients with previously treated advanced NSCLC. bTMB reduction at 6 weeks could serve as a potential predictive biomarker for this regimen.
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Affiliation(s)
- Xiao Han
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Jun Guo
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaoyong Tang
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Hui Zhu
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Dongyuan Zhu
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiqin Zhang
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiangjiao Meng
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Ying Hua
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Zhongtang Wang
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Yan Zhang
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Wei Huang
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Linlin Wang
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Shuanghu Yuan
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Pingliang Zhang
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Heyi Gong
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Yulan Sun
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Yingjie Zhang
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Zengjun Liu
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Zhehai Wang
- Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China.
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6
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Shi MY, Liu HG, Chen XH, Tian Y, Chen ZN, Wang K. The application basis of immuno-checkpoint inhibitors combined with chemotherapy in cancer treatment. Front Immunol 2023; 13:1088886. [PMID: 36703971 PMCID: PMC9871553 DOI: 10.3389/fimmu.2022.1088886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/20/2022] [Indexed: 01/12/2023] Open
Abstract
Immuno-checkpoint inhibitors (ICIs) bring a promising prospect for patients with cancers, which restrains the growth of tumor cells by enhancing anti-tumor activity. Nevertheless, not all patients benefit from the administration of ICIs monotherapy. The partial response or resistance to ICIs is mainly due to the complex and heterogenous tumor microenvironment (TME). The combined therapy is necessary for improving the efficacy of tumor treatment. Chemotherapy is reported not only to kill tumor cells directly, but also to stimulate effective anti-tumor immune responses. Several combined therapies of ICIs and chemotherapeutic agents have been approved for the first-line treatment of cancers, including PD-1/PD-L1 inhibitors. This review summarizes the potential mechanisms of the combined therapy of ICIs and chemotherapeutic agents in inducing immunogenic cell death (ICD) and reprogramming TME, and elucidates the possible anti-tumor effects of combined therapy from the perspective of metabolic reprogramming and microbiome reprogramming.
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Affiliation(s)
| | | | | | | | | | - Ke Wang
- *Correspondence: Ke Wang, ; Zhi-Nan Chen,
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7
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Zhang L, Zhou C, Zhang S, Chen X, Liu J, Xu F, Liang W. Chemotherapy reinforces anti-tumor immune response and enhances clinical efficacy of immune checkpoint inhibitors. Front Oncol 2022; 12:939249. [PMID: 36003765 PMCID: PMC9393416 DOI: 10.3389/fonc.2022.939249] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 07/04/2022] [Indexed: 12/03/2022] Open
Abstract
New evidence suggests that the clinical success of chemotherapy is not merely due to tumor cell toxicity but also arises from the restoration of immunosurveillance, which has been immensely neglected in previous preclinical and clinical researches. There is an urgent need for novel insights into molecular mechanisms and regimens that uplift the efficacy of immunotherapy since only a minority of cancer patients are responsive to immune checkpoint inhibitors (ICIs). Recent findings on combination therapy of chemotherapy and ICIs have shown promising results. This strategy increases tumor recognition and elimination by the host immune system while reducing immunosuppression by the tumor microenvironment. Currently, several preclinical studies are investigating molecular mechanisms that give rise to the immunomodulation by chemotherapeutic agents and exploit them in combination therapy with ICIs in order to achieve a synergistic clinical activity. In this review, we summarize studies that exhibit the capacity of conventional chemotherapeutics to elicit anti-tumor immune responses, thereby facilitating anti-tumor activities of the ICIs. In conclusion, combining chemotherapeutics with ICIs appears to be a promising approach for improving cancer treatment outcomes.
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Affiliation(s)
- Lin Zhang
- Department of Pharmacy, Shaoxing People’s Hospital, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, China
| | - Chao Zhou
- Department of Orthopedics, Zhoushan Guanghua Hospital, Zhoushan, China
| | - Songou Zhang
- College of Medicine, Shaoxing University, Shaoxing, China
| | - Xiaozhen Chen
- College of Medicine, Shaoxing University, Shaoxing, China
| | - Jian Liu
- Department of Hepatobiliary Surgery, Shanghai Oriental Hepatobiliary Hospital, Shanghai, China
| | - Fangming Xu
- Department of Gastroenterology, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Wenqing Liang
- Medical Research Center, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
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8
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Principe N, Aston WJ, Hope DE, Tilsed CM, Fisher SA, Boon L, Dick IM, Chin WL, McDonnell AM, Nowak AK, Lake RA, Chee J, Lesterhuis WJ. Comprehensive Testing of Chemotherapy and Immune Checkpoint Blockade in Preclinical Cancer Models Identifies Additive Combinations. Front Immunol 2022; 13:872295. [PMID: 35634282 PMCID: PMC9132586 DOI: 10.3389/fimmu.2022.872295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/19/2022] [Indexed: 11/13/2022] Open
Abstract
Antibodies that target immune checkpoints such as cytotoxic T lymphocyte antigen 4 (CTLA‐4) and the programmed cell death protein 1/ligand 1 (PD-1/PD-L1) are now a treatment option for multiple cancer types. However, as a monotherapy, objective responses only occur in a minority of patients. Chemotherapy is widely used in combination with immune checkpoint blockade (ICB). Although a variety of isolated immunostimulatory effects have been reported for several classes of chemotherapeutics, it is unclear which chemotherapeutics provide the most benefit when combined with ICB. We investigated 10 chemotherapies from the main canonical classes dosed at the clinically relevant maximum tolerated dose in combination with anti‐CTLA-4/anti-PD-L1 ICB. We screened these chemo-immunotherapy combinations in two murine mesothelioma models from two different genetic backgrounds, and identified chemotherapies that produced additive, neutral or antagonistic effects when combined with ICB. Using flow cytometry and bulk RNAseq, we characterized the tumor immune milieu in additive chemo-immunotherapy combinations. 5-fluorouracil (5-FU) or cisplatin were additive when combined with ICB while vinorelbine and etoposide provided no additional benefit when combined with ICB. The combination of 5-FU with ICB augmented an inflammatory tumor microenvironment with markedly increased CD8+ T cell activation and upregulation of IFNγ, TNFα and IL-1β signaling. The effective anti‐tumor immune response of 5-FU chemo-immunotherapy was dependent on CD8+ T cells but was unaffected when TNFα or IL-1β cytokine signaling pathways were blocked. Our study identified additive and non-additive chemotherapy/ICB combinations and suggests a possible role for increased inflammation in the tumor microenvironment as a basis for effective combination therapy.
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Affiliation(s)
- Nicola Principe
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia.,School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia.,Institute for Respiratory Health, Perth, WA, Australia
| | - Wayne J Aston
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia
| | - Danika E Hope
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia
| | - Caitlin M Tilsed
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia.,School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia.,Institute for Respiratory Health, Perth, WA, Australia
| | - Scott A Fisher
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia.,School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia.,Institute for Respiratory Health, Perth, WA, Australia
| | | | - Ian M Dick
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia.,Institute for Respiratory Health, Perth, WA, Australia
| | - Wee Loong Chin
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia.,Telethon Kids Institute, Perth, WA, Australia.,Medical School, University of Western Australia, Crawley, WA, Australia
| | | | - Anna K Nowak
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia.,Institute for Respiratory Health, Perth, WA, Australia.,Medical School, University of Western Australia, Crawley, WA, Australia
| | - Richard A Lake
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia.,School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia.,Institute for Respiratory Health, Perth, WA, Australia
| | - Jonathan Chee
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia.,School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia.,Institute for Respiratory Health, Perth, WA, Australia
| | - Willem Joost Lesterhuis
- National Centre for Asbestos Related Diseases, University of Western Australia, Perth, WA, Australia.,School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia.,Institute for Respiratory Health, Perth, WA, Australia.,Telethon Kids Institute, Perth, WA, Australia
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9
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Naimi A, Mohammed RN, Raji A, Chupradit S, Yumashev AV, Suksatan W, Shalaby MN, Thangavelu L, Kamrava S, Shomali N, Sohrabi AD, Adili A, Noroozi-Aghideh A, Razeghian E. Tumor immunotherapies by immune checkpoint inhibitors (ICIs); the pros and cons. Cell Commun Signal 2022; 20:44. [PMID: 35392976 PMCID: PMC8991803 DOI: 10.1186/s12964-022-00854-y] [Citation(s) in RCA: 130] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
The main breakthrough in tumor immunotherapy was the discovery of immune checkpoint (IC) proteins, which act as a potent suppressor of the immune system by a myriad of mechanisms. After that, scientists focused on the immune checkpoint molecules mainly. Thereby, much effort was spent to progress novel strategies for suppressing these inhibitory axes, resulting in the evolution of immune checkpoint inhibitors (ICIs). Then, ICIs have become a promising approach and shaped a paradigm shift in tumor immunotherapies. CTLA-4 plays an influential role in attenuation of the induction of naïve and memory T cells by engagement with its responding ligands like B7-1 (CD80) and B7-2 (CD86). Besides, PD-1 is predominantly implicated in adjusting T cell function in peripheral tissues through its interaction with programmed death-ligand 1 (PD-L1) and PD-L2. Given their suppressive effects on anti-tumor immunity, it has firmly been documented that ICIs based therapies can be practical and rational therapeutic approaches to treat cancer patients. Nonetheless, tumor inherent or acquired resistance to ICI and some treatment-related toxicities restrict their application in the clinic. The current review will deliver a comprehensive overview of the ICI application to treat human tumors alone or in combination with other modalities to support more desired outcomes and lower toxicities in cancer patients. Video Abstract.
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Affiliation(s)
- Adel Naimi
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Rebar N. Mohammed
- Medical Laboratory Analysis Department, Cihan University Sulaimaniya, Sulaymaniyah, 46001 Kurdistan Region Iraq
- College of Veterinary Medicine, University of Sulaimani, Suleimanyah, Iraq
| | - Ahmed Raji
- College of Medicine, University of Babylon, Department of Pathology, Babylon, Iraq
| | - Supat Chupradit
- Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200 Thailand
| | | | - Wanich Suksatan
- Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, 10210 Thailand
| | - Mohammed Nader Shalaby
- Associate Professor of Biological Sciences and Sports Health Department, Faculty of Physical Education, Suez Canal University, Ismailia, Egypt
| | - Lakshmi Thangavelu
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Saveetha University, Chennai, India
| | - Siavash Kamrava
- Department of Surgery, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Navid Shomali
- Immunology Research Center (IRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Armin D. Sohrabi
- Immunology Research Center (IRC), Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Adili
- Department of Oncology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Noroozi-Aghideh
- Department of Hematology, Faculty of Paramedicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Razeghian
- Human Genetics Division, Medical Biotechnology Department, National Institute of Genetics Engineering and Biotechnology (NIGEB), Tehran, Iran
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10
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Fucikova J, Palova-Jelinkova L, Klapp V, Holicek P, Lanickova T, Kasikova L, Drozenova J, Cibula D, Álvarez-Abril B, García-Martínez E, Spisek R, Galluzzi L. Immunological control of ovarian carcinoma by chemotherapy and targeted anticancer agents. Trends Cancer 2022; 8:426-444. [PMID: 35181272 DOI: 10.1016/j.trecan.2022.01.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/05/2022] [Accepted: 01/19/2022] [Indexed: 12/24/2022]
Abstract
At odds with other solid tumors, epithelial ovarian cancer (EOC) is poorly sensitive to immune checkpoint inhibitors (ICIs), largely reflecting active immunosuppression despite CD8+ T cell infiltration at baseline. Accumulating evidence indicates that both conventional chemotherapeutics and targeted anticancer agents commonly used in the clinical management of EOC not only mediate a cytostatic and cytotoxic activity against malignant cells, but also drive therapeutically relevant immunostimulatory or immunosuppressive effects. Here, we discuss such an immunomodulatory activity, with a specific focus on molecular and cellular pathways that can be harnessed to develop superior combinatorial regimens for clinical EOC care.
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Affiliation(s)
- Jitka Fucikova
- Sotio, Prague, Czech Republic; Department of Immunology, Charles University, Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic.
| | - Lenka Palova-Jelinkova
- Department of Immunology, Charles University, Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Vanessa Klapp
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
| | - Peter Holicek
- Sotio, Prague, Czech Republic; Department of Immunology, Charles University, Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Tereza Lanickova
- Sotio, Prague, Czech Republic; Department of Immunology, Charles University, Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | | | - Jana Drozenova
- Department of Pathology, Third Faculty of Medicine and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - David Cibula
- Gynecologic Oncology Center, Department of Obstetrics and Gynecology, Charles University, First Faculty of Medicine and General University Hospital, Prague, Czech Republic
| | - Beatriz Álvarez-Abril
- Department of Hematology and Oncology, Hospital Universitario Morales Meseguer, Murcia, Spain
| | - Elena García-Martínez
- Department of Hematology and Oncology, Hospital Universitario Morales Meseguer, Murcia, Spain; Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), Murcia, Spain; Universidad Católica San Antonio de Murcia, Guadalupe, Spain
| | - Radek Spisek
- Sotio, Prague, Czech Republic; Department of Immunology, Charles University, Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA; Sandra and Edward Meyer Cancer Centre, New York, NY, USA; Caryl and Israel Englander Institute for Precision Medicine, New York, NY, USA.
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11
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He N, Jiang J. Contribution of immune cells to bone metastasis pathogenesis. Front Endocrinol (Lausanne) 2022; 13:1019864. [PMID: 36246916 PMCID: PMC9556850 DOI: 10.3389/fendo.2022.1019864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 09/13/2022] [Indexed: 11/13/2022] Open
Abstract
Bone metastasis is closely related to the survival rate of cancer patients and reduces their quality of life. The bone marrow microenvironment contains a complex immune cell component with a local microenvironment that is conducive to tumor formation and growth. In this unique immune environment, a variety of immune cells, including T cells, natural killer cells, macrophages, dendritic cells, and myeloid-derived suppressor cells, participate in the process of bone metastasis. In this review, we will introduce the interactions between immune cells and cancer cells in the bone microenvironment, obtain the details of their contributions to the implications of bone metastasis, and discuss immunotherapeutic strategies targeting immune cells in cancer patients with bone metastasis.
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Affiliation(s)
- Ningning He
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, China
- Department of Oncology, Yangzhou University, Yangzhou, China
- Department of Oncology, First People’s Hospital of Changzhou, Changzhou, China
| | - Jingting Jiang
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, China
- Department of Oncology, First People’s Hospital of Changzhou, Changzhou, China
- *Correspondence: Jingting Jiang,
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12
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Li X, Yang Y, Huang Q, Deng Y, Guo F, Wang G, Liu M. Crosstalk Between the Tumor Microenvironment and Cancer Cells: A Promising Predictive Biomarker for Immune Checkpoint Inhibitors. Front Cell Dev Biol 2021; 9:738373. [PMID: 34692696 PMCID: PMC8529050 DOI: 10.3389/fcell.2021.738373] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/20/2021] [Indexed: 02/05/2023] Open
Abstract
Immune checkpoint inhibitors (ICIs) have changed the landscape of cancer treatment and are emerging as promising curative treatments in different type of cancers. However, only a small proportion of patients have benefited from ICIs and there is an urgent need to find robust biomarkers for individualized immunotherapy and to explore the causes of immunotherapy resistance. In this article, we review the roles of immune cells in the tumor microenvironment (TME) and discuss the effects of ICIs on these cell populations. We discuss the potential of the functional interaction between the TME and cancer cells as a predictive biomarker for ICIs. Furthermore, we outline the potential personalized strategies to improve the effectiveness of ICIs with precision.
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Affiliation(s)
- Xiaoying Li
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, China
| | - Yueyao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Qian Huang
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Deng
- School of Basic Medical Science, Chengdu University, Chengdu, China
| | - Fukun Guo
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Gang Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Ming Liu
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, China
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13
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Iida Y, Yoshikawa R, Murata A, Kotani H, Kazuki Y, Oshimura M, Matsuzaki Y, Harada M. Local injection of CCL19-expressing mesenchymal stem cells augments the therapeutic efficacy of anti-PD-L1 antibody by promoting infiltration of immune cells. J Immunother Cancer 2021; 8:jitc-2020-000582. [PMID: 32675195 PMCID: PMC7368496 DOI: 10.1136/jitc-2020-000582] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2020] [Indexed: 12/12/2022] Open
Abstract
Background Mesenchymal stem/stromal cells (MSC) accumulate and reside in tumor sites. Methods Taking advantage of this feature in anticancer therapy, immortalized murine MSC (iMSC) were genetically altered to produce chemokine (C-C motif) ligand 19 (iMSC/CCL19), which attracts dendritic cells (DC) and T lymphocytes. Thereafter, iMSC/CCL19 were examined for their therapeutic efficacy using a syngeneic CT26 colon carcinoma cell line. Results Co-injection of iMSC/CCL19 into mice significantly suppressed the in vivo growth of CT26 cells compared with that of CCL19-expressing immortalized fibroblasts (iFib/CCL19). This anticancer effect was not observed when injected in CT26-bearing nude mice. Co-injected iMSC/CCL19 survived longer than iFib/CCL19 in the tumor sites. In a therapeutic model, local injection of iMSC/CCL19 suppressed the tumor growth, and increased IFN (interferon)-γ+ CD8+ T cells and CCR7+ DC infiltration in tumor site was observed when treated with iMSC/CCL19, but not with iMSC. This antitumor effect was completely negated by depletion of CD4+ cells and partially negated by depletion of CD8+ cells. Furthermore, the antitumor effects induced by local injection of iMSC/CCL19 were augmented by additional therapy with anti-programmed death (PD)-ligand 1 (PD-L1) antibody, but not with anti-PD-1 antibody. This combination therapy cured most of the tumors in CT26-bearing mice. Conclusion These results suggest that local therapy with iMSC/CCL19 can suppress tumor growth via effective recruitment of CCR7+ DC into tumor sites and increase IFN-γ+ CD8+ T cells, and that combination with anti-PD-L1 antibody therapy can be a powerful anticancer therapy.
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Affiliation(s)
- Yuichi Iida
- Immunology, Shimane University Faculty of Medicine Graduate School of Medicine, Izumo, Japan
| | - Rintaro Yoshikawa
- Life Science, Shimane University Faculty of Medicine Graduate School of Medicine, Izumo, Shimane, Japan
| | - Akihiko Murata
- Molecular and Cellular Biology, Tottori University Faculty of Medicine, Yonago, Tottori, Japan
| | - Hitoshi Kotani
- Immunology, Shimane University Faculty of Medicine Graduate School of Medicine, Izumo, Japan
| | - Yasuhiro Kazuki
- Biomedical Science, Tottori University Faculty of Medicine, Yonago, Tottori, Japan
| | - Mitsuo Oshimura
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
| | - Yumi Matsuzaki
- Life Science, Shimane University Faculty of Medicine Graduate School of Medicine, Izumo, Shimane, Japan
| | - Mamoru Harada
- Immunology, Shimane University Faculty of Medicine Graduate School of Medicine, Izumo, Japan
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14
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Hu X, Zhu H, Zhang X, He X, Xu X. Comprehensive analysis of pan-cancer reveals potential of ASF1B as a prognostic and immunological biomarker. Cancer Med 2021; 10:6897-6916. [PMID: 34472711 PMCID: PMC8495294 DOI: 10.1002/cam4.4203] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 12/16/2022] Open
Abstract
Background Anti‐silencing function 1 (ASF1) is a conserved histone H3–H4 chaperone protein. ASF1B, a paralog of ASF1, acts by promoting cell proliferation and influencing cell cycle progression. Although there is some evidence demonstrating that ASF1B plays a key role in the development, progression, and prognosis of certain cancers, there are no pan‐cancer analyses of ASF1B. Methods We used a range of bioinformatics approaches to investigate the predictive role of ASF1B, including its correlation with prognosis, tumor mutational burden (TMB), microsatellite instability (MSI), tumor microenvironment (TME), and immune cell infiltration, in diverse cancer types. Results We found that ASF1B was highly expressed in 22 cancers and was negatively correlated with the prognosis of multiple major cancer types. Furthermore, ASF1B expression was correlated with TMB in 21 cancers and with MSI in 7 cancers. We found that ASF1B was coexpressed with genes encoding immune activators, immune suppressors, major histocompatibility complexes, chemokines, and chemokine receptors. We further found that the role of ASF1B in the infiltration of different types of immune cells varied across tumor types. ASF1B may potentially affect several key immune‐related pathways, such as those involved in antigen processing and presentation, natural killer cell‐mediated cytotoxicity, and autoimmune thyroid disease. Conclusions Our findings show that ASF1B may serve as a prognostic marker and potential immunotherapeutic target for several malignancies due to its role in tumorigenesis and immune infiltration.
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Affiliation(s)
- Xinyao Hu
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China.,Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hua Zhu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaoyu Zhang
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaoqin He
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China.,Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ximing Xu
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China.,Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
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15
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Harada M, Iida Y, Kotani H, Minami T, Komohara Y, Eto M, Yoshikawa K, Uemura H. T-cell responses and combined immunotherapy against human carbonic anhydrase 9-expressing mouse renal cell carcinoma. Cancer Immunol Immunother 2021; 71:339-352. [PMID: 34160685 DOI: 10.1007/s00262-021-02992-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 06/16/2021] [Indexed: 10/21/2022]
Abstract
Renal cell carcinoma (RCC) is known to respond to immune checkpoint blockade (ICB) therapy, whereas there has been limited analysis of T-cell responses to RCC. In this study, we utilized human carbonic anhydrase 9 (hCA9) as a model neoantigen of mouse RENCA RCC. hCA9-expressing RENCA RCC (RENCA/hCA9) cells were rejected in young mice but grew in aged mice. CD8+ T cells were the primary effector cells involved in rejection in young mice, whereas CD4+ T cells participated at the early stage. Screening of a panel of hCA9-derived peptides revealed that mouse CD8+ T cells responded to hCA9288-296 peptide. Mouse CD4+ T cells responded to lysates of RENCA/hCA9, but not RENCA cells, and showed reactivity to hCA9 276-290, which shares three amino acids with hCA9 288-296 peptide. Immunohistochemistry analysis revealed that few T cells infiltrated RENCA/hCA9 tissues in aged mice. ICB therapy of anti-PD-1/anti-CTLA-4 antibodies promoted T-cell infiltration into tumor tissues, whereas no definite antitumor effect was observed. However, additional combination with cyclophosphamide or axitinib, a vascular endothelial growth factor receptor inhibitor, induced complete regression in half of the RENCA/hCA9-bearing aged mice with increased expression of PD-L1 in tumor tissues. These results indicate that hCA9 can be a useful model neoantigen to investigate antitumor T-cell responses in mice with RCC, and that RENCA/hCA9 in aged mice can serve as a non-inflamed 'cold' tumor model facilitating the development of effective combined immunotherapies for RCC.
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Affiliation(s)
- Mamoru Harada
- Department of Immunology, Shimane University Faculty of Medicine, Izumo, Shimane, 693-8501, Japan.
| | - Yuichi Iida
- Department of Immunology, Shimane University Faculty of Medicine, Izumo, Shimane, 693-8501, Japan
| | - Hitoshi Kotani
- Department of Immunology, Shimane University Faculty of Medicine, Izumo, Shimane, 693-8501, Japan
| | - Takafumi Minami
- Department of Urology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Yoshihiro Komohara
- Department of Cell Pathology, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Masatoshi Eto
- Department of Urology, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Kazuhiro Yoshikawa
- Division of Research Creation and Biobank, Research Creation Support Center, Aichi Medical University, Aichi, Japan
| | - Hirotsugu Uemura
- Department of Urology, Kindai University Faculty of Medicine, Osaka, Japan
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16
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Prognostic value of immune checkpoint molecules in breast cancer. Biosci Rep 2021; 40:225643. [PMID: 32602545 PMCID: PMC7340863 DOI: 10.1042/bsr20201054] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 06/24/2020] [Accepted: 06/29/2020] [Indexed: 02/07/2023] Open
Abstract
Immune checkpoint blockade treatments bring remarkable clinical benefits to fighting several solid malignancies. However, the efficacy of immune checkpoint blockade in breast cancer remains controversial. Several clinical trials of immune checkpoint blockades focused on the effect of CTLA4 and PD1/PDL1 checkpoint inhibitors on breast cancer. Only a small portion of patients benefited from these therapies. Here we systematically investigated the expression of 50 immune checkpoint genes, including ADORA2A, LAG-3, TIM-3, PD1, PDL1, PDL2, CTLA-4, IDO1, B7-H3, B7-H4, CD244, BTLA, TIGIT, CD80, CD86, VISTA, CD28, ICOS, ICOSLG, HVEM, CD160, LIGHT, CD137, CD137L, OX40, CD70, CD27, CD40, CD40LG, LGALS9, GITRL, CEACAM1, CD47, SIRPA, DNAM1, CD155, 2B4, CD48, TMIGD2, HHLA2, BTN2A1, DC-SIGN, BTN2A2, BTN3A1, BTNL3, BTNL9, CD96, TDO, CD200 and CD200R, in different subtypes of breast cancer and assessed their prognostic value. The results showed that the expression patterns of these 50 immune checkpoint genes were distinct in breast cancer. High expression of B7-H3 mRNA was significantly associated with worse overall survival (OS), especially in patients with luminal A and luminal B breast cancer. The mRNA expression levels of TIM-3, ADORA2A, LAG3, CD86, CD80, PD1 and IDO1 had no relationship with OS in breast cancer. High expression levels of CTLA-4 and TIGIT were correlated with favorable prognosis in breast cancer. Interestingly, we observed that B7-H3 expression was negatively correlated with the efficacy of cyclophosphamide (CTX). In summary, our study suggested that B7-H3 has potential prognostic value in breast cancer and is a promising target for immune therapy.
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17
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Yao W, Zhao X, Gong Y, Zhang M, Zhang L, Wu Q, Wu L, Fan Z, Yan X, Jiao S. Impact of the combined timing of PD-1/PD-L1 inhibitors and chemotherapy on the outcomes in patients with refractory lung cancer. ESMO Open 2021; 6:100094. [PMID: 33780892 PMCID: PMC8041717 DOI: 10.1016/j.esmoop.2021.100094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/21/2021] [Accepted: 02/23/2021] [Indexed: 12/02/2022] Open
Abstract
Background PD-1/PD-L1 inhibitors in combination with chemotherapy are widely used in clinical practice. However, the ideal combined timing of them has not been fully explored. Methods In this study, simulation experiments to explore the impacts of the combination of anti-PD-1 antibody (anti-PD-1 Ab) on the cytotoxic effects of chemotherapeutic drugs in peripheral blood mononuclear cells were performed. In addition, the effects of the combined timing of PD-1/PD-L1 inhibitors and chemotherapy on efficacy and safety were retrospectively analysed in patients with refractory lung cancer. Results Experiments in vitro showed that administering the anti-PD-1 Ab 3 days after chemotherapy (represented by dicycloplatin) resulted in significantly weaker cytotoxic effects on lymphocytes, compared with administering the anti-PD-1 Ab before or concurrent with chemotherapy. Moreover, data from 64 lung cancer patients treated with PD-1/PD-L1 inhibitors plus chemotherapy as a second- or higher-line therapy were retrospectively analysed. The results showed that administering PD-1/PD-L1 inhibitors 1-10 days (especially 3-5 days) after chemotherapy was associated with longer overall survival [17.3 months versus 12.7 months; hazard ratio (HR) = 0.58, 95% confidence interval (CI) 0.28-1.19, P = 0.137 in univariate analysis; HR = 0.36, 95% CI 0.16-0.80, P = 0.012 in multivariate analysis] and a trend of improved progression-free survival (5.1 months versus 4.2 months; HR = 0.81, 95% CI 0.42-1.54, P = 0.512) compared with administering PD-1/PD-L1 inhibitors before or concurrent with chemotherapy. Conclusion Our findings suggest that administering PD-1/PD-L1 inhibitors 1-10 days (especially 3-5 days) after chemotherapy is superior to administering PD-1/PD-L1 inhibitors before or concurrent with chemotherapy in patients with refractory lung cancer, but this result needs to be further explored by prospective studies. The cytotoxic effects of chemotherapeutic drugs were positively correlated with the activation states of PBMCs. Administering the anti-PD-1 Ab 3 days after chemotherapy resulted in weaker cytotoxic effects on lymphocytes in vitro. Administering PD-1/PD-L1 inhibitors a few days after chemotherapy resulted in better survival in lung cancer patients.
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Affiliation(s)
- W Yao
- Medical School of Chinese PLA, Haidian, Beijing, China
| | - X Zhao
- Department of Oncology, Chinese PLA General Hospital, Beijing, China
| | - Y Gong
- Beijing DCTY® Biotech CO., LTD, Beijing, China
| | - M Zhang
- Beijing DCTY® Biotech CO., LTD, Beijing, China
| | - L Zhang
- Department of Oncology, Chinese PLA General Hospital, Beijing, China
| | - Q Wu
- Department of Oncology, Chinese PLA General Hospital, Beijing, China
| | - L Wu
- Department of Oncology, Chinese PLA General Hospital, Beijing, China
| | - Z Fan
- Department of Oncology and Hematology, Shenzhen Third People's Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - X Yan
- Department of Oncology, Chinese PLA General Hospital, Beijing, China.
| | - S Jiao
- Medical School of Chinese PLA, Haidian, Beijing, China.
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18
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Alicea-Torres K, Sanseviero E, Gui J, Chen J, Veglia F, Yu Q, Donthireddy L, Kossenkov A, Lin C, Fu S, Mulligan C, Nam B, Masters G, Denstman F, Bennett J, Hockstein N, Rynda-Apple A, Nefedova Y, Fuchs SY, Gabrilovich DI. Immune suppressive activity of myeloid-derived suppressor cells in cancer requires inactivation of the type I interferon pathway. Nat Commun 2021; 12:1717. [PMID: 33741967 PMCID: PMC7979850 DOI: 10.1038/s41467-021-22033-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 02/24/2021] [Indexed: 02/07/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSC) are pathologically activated neutrophils and monocytes with potent immune suppressive activity. These cells play an important role in accelerating tumor progression and undermining the efficacy of anti-cancer therapies. The natural mechanisms limiting MDSC activity are not well understood. Here, we present evidence that type I interferons (IFN1) receptor signaling serves as a universal mechanism that restricts acquisition of suppressive activity by these cells. Downregulation of the IFNAR1 chain of this receptor is found in MDSC from cancer patients and mouse tumor models. The decrease in IFNAR1 depends on the activation of the p38 protein kinase and is required for activation of the immune suppressive phenotype. Whereas deletion of IFNAR1 is not sufficient to convert neutrophils and monocytes to MDSC, genetic stabilization of IFNAR1 in tumor bearing mice undermines suppressive activity of MDSC and has potent antitumor effect. Stabilizing IFNAR1 using inhibitor of p38 combined with the interferon induction therapy elicits a robust anti-tumor effect. Thus, negative regulatory mechanisms of MDSC function can be exploited therapeutically.
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Affiliation(s)
| | - Emilio Sanseviero
- The Wistar Institute, Philadelphia, PA, USA
- AstraZeneca, Gaithersburg, MD, USA
| | - Jun Gui
- Department of Biomedical Sciences, School of Veterinary Medicine University of Pennsylvania, Philadelphia, PA, USA
- State Key Laboratory of Oncogenes and Related Genes, Stem Cell Research Center, Renji Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China
| | - Jinyun Chen
- Department of Biomedical Sciences, School of Veterinary Medicine University of Pennsylvania, Philadelphia, PA, USA
| | - Filippo Veglia
- The Wistar Institute, Philadelphia, PA, USA
- H. Lee Moffitt Cancer Center, Tampa, FL, USA
| | - Qiujin Yu
- Department of Biomedical Sciences, School of Veterinary Medicine University of Pennsylvania, Philadelphia, PA, USA
| | | | | | - Cindy Lin
- The Wistar Institute, Philadelphia, PA, USA
| | - Shuyu Fu
- The Wistar Institute, Philadelphia, PA, USA
| | - Charles Mulligan
- Helen F. Graham Cancer Center and Research Institute, Newark, DE, USA
| | - Brian Nam
- Helen F. Graham Cancer Center and Research Institute, Newark, DE, USA
| | - Gregory Masters
- Helen F. Graham Cancer Center and Research Institute, Newark, DE, USA
| | - Fred Denstman
- Helen F. Graham Cancer Center and Research Institute, Newark, DE, USA
| | - Joseph Bennett
- Helen F. Graham Cancer Center and Research Institute, Newark, DE, USA
| | - Neil Hockstein
- Helen F. Graham Cancer Center and Research Institute, Newark, DE, USA
| | - Agnieszka Rynda-Apple
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, USA
| | | | - Serge Y Fuchs
- Department of Biomedical Sciences, School of Veterinary Medicine University of Pennsylvania, Philadelphia, PA, USA
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19
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Li JY, Chen YP, Li YQ, Liu N, Ma J. Chemotherapeutic and targeted agents can modulate the tumor microenvironment and increase the efficacy of immune checkpoint blockades. Mol Cancer 2021; 20:27. [PMID: 33541368 PMCID: PMC7863268 DOI: 10.1186/s12943-021-01317-7] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 01/19/2021] [Indexed: 02/06/2023] Open
Abstract
The development of immune checkpoint blockade (ICB)-based immunotherapy has dramatically changed methods of cancer treatment. This approach triggers a durable treatment response and prolongs patients' survival; however, not all patients can benefit. Accumulating evidence demonstrated that the efficacy of ICB is dependent on a robust antitumor immune response that is usually damaged in most tumors. Conventional chemotherapy and targeted therapy promote the antitumor immune response by increasing the immunogenicity of tumor cells, improving CD8+ T cell infiltration, or inhibiting immunosuppressive cells in the tumor microenvironment. Such immunomodulation provides a convincing rationale for the combination therapy of chemotherapeutics and ICBs, and both preclinical and clinical investigations have shown encouraging results. However, the optimal drug combinations, doses, timing, and sequence of administration, all of which affect the immunomodulatory effect of chemotherapeutics, as well as the benefit of combination therapy, are not yet determined. Future studies should focus on these issues and help to develop the optimal combination regimen for each cancer.
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Affiliation(s)
- Jun-Yan Li
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China
| | - Yu-Pei Chen
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China
| | - Ying-Qin Li
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China
| | - Na Liu
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China
| | - Jun Ma
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China.
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20
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Kim SI, Cassella CR, Byrne KT. Tumor Burden and Immunotherapy: Impact on Immune Infiltration and Therapeutic Outcomes. Front Immunol 2021; 11:629722. [PMID: 33597954 PMCID: PMC7882695 DOI: 10.3389/fimmu.2020.629722] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 12/18/2020] [Indexed: 12/20/2022] Open
Abstract
Cancer immunotherapy has revolutionized the treatment landscape in medical oncology, but its efficacy has been variable across patients. Biomarkers to predict such differential response to immunotherapy include cytotoxic T lymphocyte infiltration, tumor mutational burden, and microsatellite instability. A growing number of studies also suggest that baseline tumor burden, or tumor size, predicts response to immunotherapy. In this review, we discuss the changes in immune profile and therapeutic responses that occur with increasing tumor size. We also overview therapeutic approaches to reduce tumor burden and favorably modulate the immune microenvironment of larger tumors.
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Affiliation(s)
- Samuel I Kim
- Program in Biochemistry, College of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, United States
| | - Christopher R Cassella
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Katelyn T Byrne
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Parker Institute for Cancer Immunotherapy, University of Pennsylvania, Philadelphia, PA, United States
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Morganti S, Curigliano G. Combinations using checkpoint blockade to overcome resistance. Ecancermedicalscience 2020; 14:1148. [PMID: 33574893 PMCID: PMC7864692 DOI: 10.3332/ecancer.2020.1148] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Indexed: 12/11/2022] Open
Abstract
The advent of immunotherapy for cancer represented a paradigm shift in the treatment approach of neoplasia. Immune-checkpoint inhibitors (ICIs) were demonstrated to significantly improve outcomes, including overall survival across several cancer types, with yearly-durable responses. Nevertheless, many patients derive minor or no benefit with immune checkpoint (IC)-blockade, including patients with cancer types traditionally considered immunogenic. Combination strategies of ICIs with chemotherapy, radiotherapy, targeted therapies or other immunotherapy compounds have been conceived in order to boost the immune-responses and potentially overcome resistance to ICIs. This review focuses on mechanisms underlying resistance to IC-blockade and provides an overview of potential advantages and limitations of combination strategies currently under investigation.
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Affiliation(s)
- Stefania Morganti
- Division of Early Drug Development for Innovative Therapies, European Institute of Oncology (IEO), IRCCS, Via Ripamonti n.435, 20141, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Via Festa del Perdono n. 7, 20122 Milan, Italy
| | - Giuseppe Curigliano
- Division of Early Drug Development for Innovative Therapies, European Institute of Oncology (IEO), IRCCS, Via Ripamonti n.435, 20141, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Via Festa del Perdono n. 7, 20122 Milan, Italy
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22
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The Role of Chemokine Receptor CXCR3 and Its Ligands in Renal Cell Carcinoma. Int J Mol Sci 2020; 21:ijms21228582. [PMID: 33202536 PMCID: PMC7696621 DOI: 10.3390/ijms21228582] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 11/08/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
The major invasive subtype of kidney cancer is renal cell carcinoma (RCC). The essential components of cancer development are chronic inflammation and neoangiogenesis. It has been suggested that the chemokine ligand 9, -10, –11 (CXCL9–11) and chemokine receptor 3 (CXCR3) chemokines receptor expressed on monocytes, T and NK cells may be involved in the inhibition of angiogenesis. However, to date, little is known about the potential clinical significance of these chemokines and their receptor in renal cell carcinoma. Therefore, in this review, we described the role of CXCR3 and its ligands in pathogenesis of RCC. We performed an extensive search of the current literature in our investigation, using the MEDLINE/PubMed database. The changes of chemokines and their specific receptor in renal cell carcinoma were observed. Published studies revealed an increased expression of CXCR3 and elevated concentration of its ligands in RCC. The association between treatment of RCC and CXCL9–11/CXCR3 concentration and expression was also observed. Moreover, CXCR3 and its ligands levels were related to patient’s prognosis, risk of metastasis and tumor growth. This review describes the potential role of CXCR3 and its ligands in pathogenesis of RCC, as well as their potential immune-therapeutic significance. However, future studies should aim to confirm the clinical and prognostic role of CXCL9–11/CXCR3 in renal cell carcinoma.
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Bauché D, Mauze S, Kochel C, Grein J, Sawant A, Zybina Y, Blumenschein W, Yang P, Annamalai L, Yearley JH, Punnonen J, Bowman EP, Chackerian A, Laface D. Antitumor efficacy of combined CTLA4/PD-1 blockade without intestinal inflammation is achieved by elimination of FcγR interactions. J Immunother Cancer 2020; 8:jitc-2020-001584. [PMID: 33127658 PMCID: PMC7604872 DOI: 10.1136/jitc-2020-001584] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2020] [Indexed: 12/14/2022] Open
Abstract
Background Programmed cell death protein 1 (PD-1) and CTLA4 combination blockade enhances clinical efficacy in melanoma compared with targeting either checkpoint alone; however, clinical response improvement is coupled with increased risk of developing immune-related adverse events (irAE). Delineating the mechanisms of checkpoint blockade-mediated irAE has been hampered by the lack of animal models that replicate these clinical events. Methods We have developed a mouse model of checkpoint blockade-mediated enterocolitis via prolonged administration of an Fc-competent anti-CTLA4 antibody. Results Sustained treatment with Fc-effector, but not Fc-mutant or Fc-null, anti-CTLA4 antagonist for 7 weeks resulted in enterocolitis. Moreover, combining Fc-null or Fc-mutant CTLA4 antagonists with PD-1 blockade results in potent antitumor combination efficacy indicating that Fc-effector function is not required for combination benefit. Conclusion These data suggest that using CTLA4 antagonists with no Fc-effector function can mitigate gut inflammation associated with anti-CTLA4 antibody therapy yet retain potent antitumor activity in combination with PD-1 blockade.
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Affiliation(s)
- David Bauché
- Discovery Oncology, Merck & Co. Inc, South San Francisco, California, USA
| | - Smita Mauze
- Discovery Oncology, Merck & Co. Inc, South San Francisco, California, USA
| | - Christina Kochel
- Discovery Oncology, Merck & Co. Inc, South San Francisco, California, USA
| | - Jeff Grein
- Molecular Discovery, Merck & Co. Inc, South San Francisco, California, USA
| | - Anandi Sawant
- Discovery Oncology, Merck & Co. Inc, South San Francisco, California, USA
| | - Yulia Zybina
- Molecular Discovery, Merck & Co. Inc, South San Francisco, California, USA
| | - Wendy Blumenschein
- Molecular Discovery, Merck & Co. Inc, South San Francisco, California, USA
| | - Peng Yang
- Anatomic Pathology, Merck & Co. Inc, South San Francisco, California, USA
| | | | - Jennifer H Yearley
- Anatomic Pathology, Merck & Co. Inc, South San Francisco, California, USA
| | - Juha Punnonen
- Discovery Oncology, Merck & Co. Inc, South San Francisco, California, USA
| | - Edward P Bowman
- Discovery Oncology, Merck & Co. Inc, South San Francisco, California, USA
| | - Alissa Chackerian
- Discovery Oncology, Merck & Co. Inc, South San Francisco, California, USA
| | - Drake Laface
- Discovery Oncology, Merck & Co. Inc, South San Francisco, California, USA
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24
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Turbitt WJ, Orlandella RM, Gibson JT, Peterson CM, Norian LA. Therapeutic Time-restricted Feeding Reduces Renal Tumor Bioluminescence in Mice but Fails to Improve Anti-CTLA-4 Efficacy. Anticancer Res 2020; 40:5445-5456. [PMID: 32988866 PMCID: PMC7957951 DOI: 10.21873/anticanres.14555] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND/AIM Dietary interventions like time-restricted feeding (TRF) show promising anti-cancer properties. We examined whether therapeutic TRF alone or combined with immunotherapy would diminish renal tumor growth in mice of varying body weights. MATERIALS AND METHODS Young (7 week) chow-fed or older (27 week) high-fat diet (HFD)-fed BALB/c mice were orthotopically injected with renal tumor cells expressing luciferase. After tumor establishment, mice were randomized to ad libitum feeding or TRF +/- anti-CTLA-4. Body composition, tumor viability and growth, and immune responses were quantified. RESULTS TRF alone reduced renal tumor bioluminescence in older HFD-fed, but not young chow-fed mice. In the latter, TRF mitigated tumor-induced loss of lean- and fat-mass. However, TRF did not alter excised renal tumor weights or intratumoral immune responses and failed to improve anti-CTLA-4 outcomes in any mice. CONCLUSION Therapeutic TRF exhibits modest anti-cancer properties but fails to improve anti-CTLA-4 immune checkpoint blockade in murine renal cancer.
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Affiliation(s)
- William J Turbitt
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL, U.S.A
| | - Rachael M Orlandella
- Graduate Biomedical Sciences, University of Alabama at Birmingham, Birmingham, AL, U.S.A
| | - Justin T Gibson
- Graduate Biomedical Sciences, University of Alabama at Birmingham, Birmingham, AL, U.S.A
| | - Courtney M Peterson
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL, U.S.A
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL, U.S.A
| | - Lyse A Norian
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL, U.S.A.
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL, U.S.A
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, U.S.A
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25
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Taniura T, Iida Y, Kotani H, Ishitobi K, Tajima Y, Harada M. Immunogenic chemotherapy in two mouse colon cancer models. Cancer Sci 2020; 111:3527-3539. [PMID: 32816355 PMCID: PMC7541014 DOI: 10.1111/cas.14624] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/12/2020] [Accepted: 08/17/2020] [Indexed: 01/18/2023] Open
Abstract
Aside from the induction of cell death, some anticancer chemotherapeutic drugs can modulate antitumor immune responses. In this study, we examined the anticancer effects of 5‐fluorouracil (5‐FU) and oxaliplatin (L‐OHP), which are standard chemotherapeutic drugs for colon cancer, combined with cyclophosphamide (CP) in two mouse colon cancer models (CT26 and MC38 colon adenocarcinoma models). In the CT26 model, two injections of 5‐FU/L‐OHP and CP significantly suppressed the growth of subcutaneously established CT26 tumors compared with either 5‐FU/L‐OHP or CP, without a significant loss of body weight. The anticancer effect was weakened in nude mice. Cured mice acquired protective immunity against CT26, and CT26‐specific cytotoxic T cells (CTLs) were induced from their spleen cells. Analysis of tumor‐infiltrating immune cells revealed that 5‐FU/L‐OHP treatment with or without CP increased the proportion of CD8+ T cells at tumor sites. The 5‐FU/L‐OHP treatment decreased the proportion of granulocytic myeloid‐derived suppressor cells (MDSCs) and increased monocytic MDSCs in tumor sites, whereas the addition of CP treatment reversed these changes. In the MC38 model, although significant anticancer effects of the triple combination therapy were seen, additional treatment with anti‐PD‐1 antibody increased the number of cured mice. These mice exhibited protective immunity against MC38, and MC38‐specific CTLs were generated from their spleen cells. Together, these results indicate that the antitumor effects of the combination of 5‐FU/L‐OHP and CP mainly depend on host T cells; moreover, the therapeutic efficacy can be effectively boosted by immune checkpoint blockade.
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Affiliation(s)
- Takahito Taniura
- Department of Digestive and General Surgery, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Yuichi Iida
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Hitoshi Kotani
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Kazunari Ishitobi
- Department of Digestive and General Surgery, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Yoshitsugu Tajima
- Department of Digestive and General Surgery, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Mamoru Harada
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan
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Immunostimulation with chemotherapy in the era of immune checkpoint inhibitors. Nat Rev Clin Oncol 2020; 17:725-741. [PMID: 32760014 DOI: 10.1038/s41571-020-0413-z] [Citation(s) in RCA: 684] [Impact Index Per Article: 171.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2020] [Indexed: 02/08/2023]
Abstract
Conventional chemotherapeutics have been developed into clinically useful agents based on their ability to preferentially kill malignant cells, generally owing to their elevated proliferation rate. Nonetheless, the clinical activity of various chemotherapies is now known to involve the stimulation of anticancer immunity either by initiating the release of immunostimulatory molecules from dying cancer cells or by mediating off-target effects on immune cell populations. Understanding the precise immunological mechanisms that underlie the efficacy of chemotherapy has the potential not only to enable the identification of superior biomarkers of response but also to accelerate the development of synergistic combination regimens that enhance the clinical effectiveness of immune checkpoint inhibitors (ICIs) relative to their effectiveness as monotherapies. Indeed, accumulating evidence supports the clinical value of combining appropriately dosed chemotherapies with ICIs. In this Review, we discuss preclinical and clinical data on the immunostimulatory effects of conventional chemotherapeutics in the context of ICI-based immunotherapy.
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Khan KA, Ponce de Léon JL, Benguigui M, Xu P, Chow A, Cruz-Muñoz W, Man S, Shaked Y, Kerbel RS. Immunostimulatory and anti-tumor metronomic cyclophosphamide regimens assessed in primary orthotopic and metastatic murine breast cancer. NPJ Breast Cancer 2020; 6:29. [PMID: 32704531 PMCID: PMC7371860 DOI: 10.1038/s41523-020-0171-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 06/05/2020] [Indexed: 12/29/2022] Open
Abstract
The impressive successes of immune checkpoint blockade antibodies to treat various types of cancer are limited to minor subsets of patients. Combination therapy strategies, including with chemotherapy, are being explored to possibly improve the efficacy of immunotherapies. Here we report results regarding the use of an immunostimulatory regimen of metronomic cyclophosphamide (CTX). We show that in orthotopic models of syngeneic murine triple-negative breast cancer (EMT6), CTX administered at 140 mg/kg every 6 days (CTX140 1q6d) is superior at inhibiting primary tumor growth when compared to maximum tolerated dose or daily oral (continuous) low-dose CTX. In SCID or SCID beige mice, anti-tumor effects of CTX140 1q6d are reduced, reinforcing the therapeutic contribution of the adaptive and innate immune systems. In a second breast cancer model (SP1-AC2M2), CTX140 1q6d again showed clear superiority in anti-tumor effects, causing complete tumor regressions; however, these mice were not protected from subsequent tumor re-challenge, suggesting absence of immune memory. We also show that in an aggressive and metastatic cisplatin-resistant variant (EMT6-CDDP), CTX140 1q6d is superior and invokes an influx of intra-tumoral CD4+ and CD8+ T cells. CTX increases expression of tumor cell PD-L1; however, when combined with concomitant PD-L1 antibody therapy none of the CTX regimens showed increased benefit. This work sheds light on the potential use of metronomic CTX for the treatment of breast cancer, in particular using the quasi-weekly regimen, but also underscores the complexity of the anti-tumor mechanisms and potential to improve immune checkpoint therapy efficacy.
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Affiliation(s)
- Kabir A. Khan
- Biological Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | | | - Madeleine Benguigui
- Cell Biology and Cancer Science, Rappaport Faculty of Medicine, Technion, Haifa Israel
| | - Ping Xu
- Biological Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
| | - Annabelle Chow
- Biological Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
| | - William Cruz-Muñoz
- Biological Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
| | - Shan Man
- Biological Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
| | - Yuval Shaked
- Cell Biology and Cancer Science, Rappaport Faculty of Medicine, Technion, Haifa Israel
| | - Robert S. Kerbel
- Biological Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
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Garritson J, Krynski L, Haverbeck L, Haughian JM, Pullen NA, Hayward R. Physical activity delays accumulation of immunosuppressive myeloid-derived suppressor cells. PLoS One 2020; 15:e0234548. [PMID: 32542046 PMCID: PMC7295224 DOI: 10.1371/journal.pone.0234548] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 05/28/2020] [Indexed: 12/18/2022] Open
Abstract
Background Myeloid-derived suppressor cells (MDSCs) are potent suppressors of immune function and may play a key role in the development and progression of metastatic cancers. Aerobic exercise has been shown to have anticancer effects, yet the mechanisms behind this protection are largely unknown. Therefore, we examined the effects of physical activity on MDSC accumulation and function. Methods Female BALB/c mice were assigned to one of two primary groups: sedentary tumor (SED+TUM) or wheel run tumor (WR+TUM). After 6 weeks of voluntary wheel running, all animals were randomly subdivided into 4 different timepoint groups; 16, 20, 24, and 28 days post-tumor injection. All mice were inoculated with 4T1 mammary carcinoma cells in the mammary fat pad and WR groups continued to run for the specified time post-injection. Spleen, blood, and tumor samples were analyzed using flow cytometry to assess proportions of MDSCs. Results Cells expressing MDSC biomarkers were detected in the spleen, blood, and tumor beginning at d16. However, since there was no evidence of immunosuppressive function until d28, we refer to them as immature myeloid cells (IMCs). Compared to SED+TUM, levels of IMCs in the spleen were significantly lower (p < 0.05) in WR+TUM at day 16 (33.0 ± 5.2%; 23.1 ± 10.2% of total cells, respectively) and day 20 (33.9 ± 8.1%; 24.3 ± 5.1% of total cells, respectively). Additionally, there were fewer circulating IMCs in WR+TUM at day 16 and MDSC levels were significantly lower (p < 0.05) in the tumor at day 28 in WR+TUM. Additionally, a non-significant 62% and 26% reduction in metastatic lung nodules was observed at days 24 and 28, respectively. At day 28, MDSCs harvested from SED+TUM significantly suppressed CD3+CD4+ T cell proliferation (3.2 ± 1.3 proliferation index) while proliferation in WR+TUM MDSC co-cultures (5.1 ± 1.7 proliferation index) was not different from controls. Conclusions These findings suggest that physical activity may delay the accumulation of immunosuppressive MDSCs providing a broader window of opportunity for interventions with immunotherapies.
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Affiliation(s)
- Jacob Garritson
- School of Sport and Exercise Science and the University of Northern Colorado Cancer Rehabilitation Institute, University of Northern Colorado, Greeley, CO, United States of America
| | - Luke Krynski
- School of Sport and Exercise Science and the University of Northern Colorado Cancer Rehabilitation Institute, University of Northern Colorado, Greeley, CO, United States of America
| | - Lea Haverbeck
- School of Sport and Exercise Science and the University of Northern Colorado Cancer Rehabilitation Institute, University of Northern Colorado, Greeley, CO, United States of America
| | - James M. Haughian
- School of Biological Sciences, University of Northern Colorado, Greeley, CO, United States of America
| | - Nicholas A. Pullen
- School of Biological Sciences, University of Northern Colorado, Greeley, CO, United States of America
| | - Reid Hayward
- School of Sport and Exercise Science and the University of Northern Colorado Cancer Rehabilitation Institute, University of Northern Colorado, Greeley, CO, United States of America
- * E-mail:
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Satoh Y, Kotani H, Iida Y, Taniura T, Notsu Y, Harada M. Supplementation of l-arginine boosts the therapeutic efficacy of anticancer chemoimmunotherapy. Cancer Sci 2020; 111:2248-2258. [PMID: 32426941 PMCID: PMC7484823 DOI: 10.1111/cas.14490] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/20/2020] [Accepted: 05/14/2020] [Indexed: 12/16/2022] Open
Abstract
Myeloid‐derived suppressor cells (MDSCs) play a crucial role in immunosuppression in tumor‐bearing hosts. MDSCs express arginase‐I and indoleamine 2,3‐dioxygenase; they suppress T‐cell function by reducing the levels of l‐arginine and l‐tryptophan, respectively. We examined the anticancer effects of supplementation of these amino acids in CT26 colon carcinoma‐bearing mice. Oral supplementation of l‐arginine or l‐tryptophan (30 mg/mouse) did not affect tumor growth, whereas oral supplementation of d‐arginine was lethal. Supplementation of l‐arginine showed a tendency to augment the efficacy of cyclophosphamide (CP). CP reduced the proportions of granulocytic MDSCs and increased the proportions of monocytic MDSCs in the spleen and tumor tissues of CT26‐bearing mice. l‐Arginine supplementation alone did not affect the MDSC subsets. CP treatment tended to reduce the plasma levels of l‐arginine in CT26‐bearing mice and significantly increased the number of tumor‐infiltrating CD8+ T cells. In addition, l‐arginine supplementation significantly increased the proportions of tumor peptide‐specific CD8+ T cells in draining lymph nodes. Importantly, additional supplementation of l‐arginine significantly increased the number of cured mice that were treated with CP and anti‐PD‐1 antibody. Totally, l‐arginine supplementation shows promise for boosting the therapeutic efficacy of chemoimmunotherapy.
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Affiliation(s)
- Yusuke Satoh
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Hitoshi Kotani
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Yuichi Iida
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Takahito Taniura
- Department of Digestive and General Surgery, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Yoshitomo Notsu
- Department of Laboratory Medicine, Shimane University Hospital, Shimane, Japan
| | - Mamoru Harada
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan
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30
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Law AMK, Valdes-Mora F, Gallego-Ortega D. Myeloid-Derived Suppressor Cells as a Therapeutic Target for Cancer. Cells 2020; 9:cells9030561. [PMID: 32121014 PMCID: PMC7140518 DOI: 10.3390/cells9030561] [Citation(s) in RCA: 252] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/22/2020] [Accepted: 02/24/2020] [Indexed: 12/15/2022] Open
Abstract
The emergence of immunotherapy has been an astounding breakthrough in cancer treatments. In particular, immune checkpoint inhibitors, targeting PD-1 and CTLA-4, have shown remarkable therapeutic outcomes. However, response rates from immunotherapy have been reported to be varied, with some having pronounced success and others with minimal to no clinical benefit. An important aspect associated with this discrepancy in patient response is the immune-suppressive effects elicited by the tumour microenvironment (TME). Immune suppression plays a pivotal role in regulating cancer progression, metastasis, and reducing immunotherapy success. Most notably, myeloid-derived suppressor cells (MDSC), a heterogeneous population of immature myeloid cells, have potent mechanisms to inhibit T-cell and NK-cell activity to promote tumour growth, development of the pre-metastatic niche, and contribute to resistance to immunotherapy. Accumulating research indicates that MDSC can be a therapeutic target to alleviate their pro-tumourigenic functions and immunosuppressive activities to bolster the efficacy of checkpoint inhibitors. In this review, we provide an overview of the general immunotherapeutic approaches and discuss the characterisation, expansion, and activities of MDSCs with the current treatments used to target them either as a single therapeutic target or synergistically in combination with immunotherapy.
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Affiliation(s)
- Andrew M. K. Law
- Tumour Development Group, The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- Correspondence: (A.M.K.L.); (F.V.-M.); (D.G.-O.); Tel.: +61-(0)2-9355-5894 (A.M.K.L); +61-(0)2-9385-0143 (F.V.-M); +61-(0)2-9355-5776 (D.G.-O)
| | - Fatima Valdes-Mora
- Histone Variants Group, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- St. Vincent’s Clinical School, Faculty of Medicine, University of New South Wales Sydney, Sydney, NSW 2052, Australia
- Correspondence: (A.M.K.L.); (F.V.-M.); (D.G.-O.); Tel.: +61-(0)2-9355-5894 (A.M.K.L); +61-(0)2-9385-0143 (F.V.-M); +61-(0)2-9355-5776 (D.G.-O)
| | - David Gallego-Ortega
- Tumour Development Group, The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- St. Vincent’s Clinical School, Faculty of Medicine, University of New South Wales Sydney, Sydney, NSW 2052, Australia
- Correspondence: (A.M.K.L.); (F.V.-M.); (D.G.-O.); Tel.: +61-(0)2-9355-5894 (A.M.K.L); +61-(0)2-9385-0143 (F.V.-M); +61-(0)2-9355-5776 (D.G.-O)
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Seliger B. Combinatorial Approaches With Checkpoint Inhibitors to Enhance Anti-tumor Immunity. Front Immunol 2019; 10:999. [PMID: 31178856 PMCID: PMC6538766 DOI: 10.3389/fimmu.2019.00999] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 04/18/2019] [Indexed: 12/13/2022] Open
Abstract
Treatment of cancer patients has been recently revolutionized by the application of various immunotherapeutics. However, the response rates are still limited ranging between approximately 20 and 40% suggesting that combinations of immunotherapy with conventional treatment, like chemotherapy, radiation, epigenetic modulators, targeted therapies using small molecules as well as other (immuno) therapeutics, might be an option to increase systemic anti-tumor immunity. It is postulated that different non-immune based therapies in combination with immunotherapies could reprogram the immune suppressive tumor microenvironment and enhance the immunogenicity of tumor cells leading to an improved therapeutic efficacy and a better patients' outcome. Despite there exist various examples of increased objective responses achieved by adding these different therapies to immunotherapies, strategies for rational and evidence-based design of checkpoint inhibitor combinations to maximize the clinical benefit for patients are urgently required. Therefore, the main purpose of this review is to summarize recent results obtained from experimental models and clinical trials to enhance tumor immunogenicity by combining immunotherapy with other therapeutic options to maximize patients' outcome and minimize adverse events.
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Affiliation(s)
- Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
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32
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Monmai C, You S, Park WJ. Immune-enhancing effects of anionic macromolecules extracted from Codium fragile on cyclophosphamide-treated mice. PLoS One 2019; 14:e0211570. [PMID: 30779763 PMCID: PMC6380620 DOI: 10.1371/journal.pone.0211570] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 01/16/2019] [Indexed: 12/22/2022] Open
Abstract
Immune-regulation and homeostasis are critical in cancer therapy and immunomodulatory biomaterials have been used to decrease side effects of immunosuppressant drugs. Anionic macromolecules (CFAMs) were isolated from the seaweed Codium fragile, and its immune-enhancing biological activities were examined in CY-induced immunosuppressed mice. CFAMs improved the splenic lymphocyte proliferation, NK cell activity, and spleen index. The expression of immune-associated genes was highly upregulated in splenic lymphocytes, and gene expression was differently regulated according to mitogens such as T-cell (Con A) and B-cell (LPS) mitogens. Additionally, CFAMs boosted the proliferation, NO production, and phagocytosis of peritoneal macrophages. CFAMs also considerably stimulated immune-associated gene expression in peritoneal macrophages. Moreover, our results showed CFAMs mediated its immune-enhancing effects via the MAPK pathway. These suggested CFAMs can be used as a potent immunomodulatory material under immune-suppressive condition. Furthermore, CFAMs may also be used as a bio-functional and pharmaceutical material for improving human health and immunity.
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Affiliation(s)
- Chaiwat Monmai
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung, Gangwon, Korea
| | - SangGuan You
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung, Gangwon, Korea
| | - Woo Jung Park
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung, Gangwon, Korea
- * E-mail:
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Heinhuis KM, Ros W, Kok M, Steeghs N, Beijnen JH, Schellens JHM. Enhancing antitumor response by combining immune checkpoint inhibitors with chemotherapy in solid tumors. Ann Oncol 2019; 30:219-235. [PMID: 30608567 DOI: 10.1093/annonc/mdy551] [Citation(s) in RCA: 315] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND Cancer immunotherapy has changed the standard of care for a subgroup of patients with advanced disease. Immune checkpoint blockade (ICB) in particular has shown improved survival compared with previous standards of care for several tumor types. Although proven to be successful in more immunogenic tumors, ICB is still largely ineffective in patients with tumors that are not infiltrated by immune cells, the so-called cold tumors. PATIENTS AND METHODS This review describes the effects of different chemotherapeutic agents on the immune system and the potential value of these different types of chemotherapy as combination partners with ICB in patients with solid tumors. Both preclinical data and currently ongoing clinical trials were evaluated. In addition, we reviewed findings regarding different dosing schedules, including the effects of an induction phase and applying metronomic doses of chemotherapy. RESULTS Combining ICB with other treatment modalities may lead to improved immunological conditions in the tumor microenvironment and could thereby enhance the antitumor immune response, even in tumor types that are so far unresponsive to ICB monotherapy. Chemotherapy, that was originally thought to be solely immunosuppressive, can exert immunomodulatory effects which may be beneficial in combination with immunotherapy. Each chemotherapeutic drug impacts the tumor microenvironment differently, and in order to determine the most suitable combination partners for ICB it is crucial to understand these mechanisms. CONCLUSION Preclinical studies demonstrate that the majority of chemotherapeutic drugs has been shown to exert immunostimulatory effects, either by inhibiting immunosuppressive cells and/or activating effector cells, or by increasing immunogenicity and increasing T-cell infiltration. However, for certain chemotherapeutic agents timing, dose and sequence of administration of chemotherapeutic agents and ICB is important. Further studies should focus on determining the optimal drug combinations, sequence effects and optimal concentration-time profiles in representative preclinical models.
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Affiliation(s)
- K M Heinhuis
- Divisions of Pharmacology, Utrecht University, Utrecht, The Netherlands
| | - W Ros
- Divisions of Pharmacology, Utrecht University, Utrecht, The Netherlands
| | - M Kok
- Medical Oncology and Molecular Oncology & Immunology, Utrecht University, Utrecht, The Netherlands
| | - N Steeghs
- Medical Oncology, Department of Clinical Pharmacology, Utrecht University, Utrecht, The Netherlands
| | - J H Beijnen
- Divisions of Pharmacology, Utrecht University, Utrecht, The Netherlands; Department of Pharmacy, The Netherlands Cancer Institute, Amsterdam, The Netherlands; MC Slotervaart, Amsterdam, The Netherlands; Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - J H M Schellens
- Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.
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Myeloid-derived suppressor cells coming of age. Nat Immunol 2018; 19:108-119. [PMID: 29348500 DOI: 10.1038/s41590-017-0022-x] [Citation(s) in RCA: 1188] [Impact Index Per Article: 198.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 11/07/2017] [Indexed: 02/07/2023]
Abstract
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of cells generated during a large array of pathologic conditions ranging from cancer to obesity. These cells represent a pathologic state of activation of monocytes and relatively immature neutrophils. MDSCs are characterized by a distinct set of genomic and biochemical features, and can, on the basis of recent findings, be distinguished by specific surface molecules. The salient feature of these cells is their ability to inhibit T cell function and thus contribute to the pathogenesis of various diseases. In this Review, we discuss the origin and nature of these cells; their distinctive features; and their biological roles in cancer, infectious diseases, autoimmunity, obesity and pregnancy.
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Iida Y, Harashima N, Motoshima T, Komohara Y, Eto M, Harada M. Contrasting effects of cyclophosphamide on anti-CTL-associated protein 4 blockade therapy in two mouse tumor models. Cancer Sci 2017; 108:1974-1984. [PMID: 28787548 PMCID: PMC5623733 DOI: 10.1111/cas.13337] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 07/27/2017] [Accepted: 07/29/2017] [Indexed: 12/29/2022] Open
Abstract
Immune checkpoint blockade is a promising anticancer therapy, but must be used in combination with other anticancer therapies to increase its therapeutic efficacy. Cyclophosphamide (CP) is a chemotherapeutic drug that shows immune‐modulating effects. In this study, we examined the effect of CP on anti‐CTL‐associated protein 4 (CTLA‐4) blockade therapy in two mouse tumor models. Drastic tumor regression was observed in the CT26 colon carcinoma model after i.p. injection of CP (100 mg/kg) followed by anti‐CTLA‐4 antibody. However, administration in the reverse order increased apoptosis in tumor‐specific CD8+ T cells. In the RENCA renal carcinoma model, the antitumor effect of combination therapy was marginal and the tumor‐bearing state reduced body weight with an increased serum level of interleukin‐6. Interestingly, although CP monotherapy increased myeloid‐derived suppressor cells (MDSCs) in the spleens of both models, subsequent anti‐CTLA‐4 therapy increased MDSCs only in RENCA‐bearing mice. Additionally, the serum levels of chemokine ligand 2 and C‐X‐C motif chemokine 10 were increased by the combination therapy only in RENCA‐bearing mice and in vivo depletion of Gr‐1+ cells augmented the antitumor effect to some degree. These results reveal a contrasting effect of CP on anti‐CTLA‐4 therapy between the two mouse tumor models. Cyclophosphamide augments the antitumor effect of anti‐CTLA‐4 therapy in CT26‐bearing hosts, whereas CP after anti‐CTLA‐4 therapy attenuates this effect through induction of apoptosis in tumor‐reactive T cells. Alternatively, CP‐induced MDSCs can be increased by anti‐CTLA‐4 therapy only in RENCA‐bearing hosts with an elevated level of interleukin‐6.
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Affiliation(s)
- Yuichi Iida
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Nanae Harashima
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan.,Laboratory of Biometabolic Chemistry, Faculty of Medicine, School of Health Sciences, University of Ryukyus, Okinawa, Japan
| | - Takanobu Motoshima
- Department of Urology, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Yoshihiro Komohara
- Department of Cell Pathology, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Masatoshi Eto
- Department of Urology, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Mamoru Harada
- Department of Immunology, Faculty of Medicine, Shimane University, Shimane, Japan
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