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Peng S, Huang H, Zhu X, Chen J, Ding X, Wang F, Chen L, Lu Z. Anlotinib plus tislelizumab for recurrent metastatic pancreas ductal adenocarcinoma with germline BRCA2 mutation: A case report. Exp Ther Med 2024; 27:178. [PMID: 38515651 PMCID: PMC10952340 DOI: 10.3892/etm.2024.12466] [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: 11/28/2023] [Accepted: 02/09/2024] [Indexed: 03/23/2024] Open
Abstract
While combined immunotherapy and anti-angiogenic therapy have demonstrated efficacy in renal cell carcinoma, non-small cell lung cancer and hepatocellular carcinoma, the efficacy of first-line treatment for pancreatic ductal adenocarcinoma (PDAC) with germline BRCA2 mutation remains unproven. We described a BRCA2-mutated patient with PDAC who presented with posterior cardiac metastasis 8 months after surgery. After receiving four cycles of anlotinib combined with tislelizumab, abdominal CT scans indicated a complete response. The patient sustained this response for over 14 months on the combination regimen, with no reported adverse events. In conclusion, the combination of tislelizumab and anlotinib may offer a viable therapeutic option for recurrent metastatic BRCA2-mutated PDAC.
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Affiliation(s)
- Sujuan Peng
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Hongxiang Huang
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Xie Zhu
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Jinhong Chen
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Xinjing Ding
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Fen Wang
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Li Chen
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Zhihui Lu
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
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2
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Balar PC, Apostolopoulos V, Chavda VP. A new era of immune therapeutics for pancreatic cancer: Monoclonal antibodies paving the way. Eur J Pharmacol 2024; 969:176451. [PMID: 38408598 DOI: 10.1016/j.ejphar.2024.176451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/06/2024] [Accepted: 02/20/2024] [Indexed: 02/28/2024]
Abstract
Pancreatic cancer, particularly pancreatic ductal adenocarcinoma, remains a devastating disease with a dismal prognosis and limited survival rates. Despite various drug treatments and regimens showing promise in managing the disease, the clinical outcomes have not significantly improved. Immunotherapy however, has become a forefront area in pancreatic cancer treatment. This approach comprises a range of agents, including small molecule drugs, antibodies, combination therapies, and vaccines. In the last 5-8 years, there has been an upsurge of research into the use of monoclonal antibodies to block receptors on cancer or immune cells, revolutionising cancer treatment and management. Several targets have been identified and studied, with the most encouraging noted in relation to checkpoint markers, namely, antibodies targeting anti-programmed cell death 1 (PD-1) and its receptor PD-L1. Herein, we present the clinical developments in immunotherapy in the last 5 years especially those which have been tested in humans against pancreatic cancer.
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Affiliation(s)
- Pankti C Balar
- Pharmacy Section, L.M. College of Pharmacy, Ahmedabad, India
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Werribee Campus, Melbourne, VIC, 3030, Australia
| | - Vivek P Chavda
- Department of Pharmaceutics and Pharmaceutical Technology, L.M. College of Pharmacy, Ahmedabad, India.
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Olaoba OT, Yang M, Adelusi TI, Maidens T, Kimchi ET, Staveley-O’Carroll KF, Li G. Targeted Therapy for Highly Desmoplastic and Immunosuppressive Tumor Microenvironment of Pancreatic Ductal Adenocarcinoma. Cancers (Basel) 2024; 16:1470. [PMID: 38672552 PMCID: PMC11048089 DOI: 10.3390/cancers16081470] [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: 02/17/2024] [Revised: 04/05/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly lethal malignancy with a very poor prognosis. Despite advancements in treatment strategies, PDAC remains recalcitrant to therapies because patients are often diagnosed at an advanced stage. The advanced stage of PDAC is characterized by metastasis, which typically renders it unresectable by surgery or untreatable by chemotherapy. The tumor microenvironment (TME) of PDAC comprises highly proliferative myofibroblast-like cells and hosts the intense deposition of a extracellular matrix component that forms dense fibrous connective tissue, a process called the desmoplastic reaction. In desmoplastic TMEs, the incessant aberration of signaling pathways contributes to immunosuppression by suppressing antitumor immunity. This feature offers a protective barrier that impedes the targeted delivery of drugs. In addition, the efficacy of immunotherapy is compromised because of the immune cold TME of PDAC. Targeted therapy approaches towards stromal and immunosuppressive TMEs are challenging. In this review, we discuss cellular and non-cellular TME components that contain actionable targets for drug development. We also highlight findings from preclinical studies and provide updates about the efficacies of new investigational drugs in clinical trials.
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Affiliation(s)
- Olamide T. Olaoba
- Department of Surgery, University of Missouri, Columbia, MO 65212, USA; (O.T.O.); (M.Y.); (T.I.A.); (T.M.); (E.T.K.)
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, MO 65212, USA
| | - Ming Yang
- Department of Surgery, University of Missouri, Columbia, MO 65212, USA; (O.T.O.); (M.Y.); (T.I.A.); (T.M.); (E.T.K.)
| | - Temitope I. Adelusi
- Department of Surgery, University of Missouri, Columbia, MO 65212, USA; (O.T.O.); (M.Y.); (T.I.A.); (T.M.); (E.T.K.)
- Roy Blunt NextGen Precision Health Institute, University of Missouri, Columbia, MO 65212, USA
| | - Tessa Maidens
- Department of Surgery, University of Missouri, Columbia, MO 65212, USA; (O.T.O.); (M.Y.); (T.I.A.); (T.M.); (E.T.K.)
| | - Eric T. Kimchi
- Department of Surgery, University of Missouri, Columbia, MO 65212, USA; (O.T.O.); (M.Y.); (T.I.A.); (T.M.); (E.T.K.)
- Roy Blunt NextGen Precision Health Institute, University of Missouri, Columbia, MO 65212, USA
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO 65201, USA
- Ellis Fischel Cancer Center, University of Missouri, Columbia, MO 65212, USA
| | - Kevin F. Staveley-O’Carroll
- Department of Surgery, University of Missouri, Columbia, MO 65212, USA; (O.T.O.); (M.Y.); (T.I.A.); (T.M.); (E.T.K.)
- Roy Blunt NextGen Precision Health Institute, University of Missouri, Columbia, MO 65212, USA
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO 65201, USA
- Ellis Fischel Cancer Center, University of Missouri, Columbia, MO 65212, USA
| | - Guangfu Li
- Department of Surgery, University of Missouri, Columbia, MO 65212, USA; (O.T.O.); (M.Y.); (T.I.A.); (T.M.); (E.T.K.)
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, MO 65212, USA
- Roy Blunt NextGen Precision Health Institute, University of Missouri, Columbia, MO 65212, USA
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO 65201, USA
- Ellis Fischel Cancer Center, University of Missouri, Columbia, MO 65212, USA
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He J, Chen X, Cheng K, Lv W, Cao D, Li Z. Stuttering as a signal of encephalopathy associated with toripalimab in a pancreatic ductal adenocarcinoma patient: a case report. BMC Neurol 2023; 23:96. [PMID: 36870985 PMCID: PMC9985276 DOI: 10.1186/s12883-023-03140-7] [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: 09/12/2022] [Accepted: 02/24/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Immune checkpoint inhibitor (ICI) combined with chemotherapy has exhibited promising results in small sample studies of pancreatic cancer patients. The efficacy of toripalimab, a programmed cell death protein 1 (PD-1) monoclonal antibody has been explored in the previous studies and it was established that immune-related adverse events (irAEs) associated with administration of this drug deserve proper attention and adequate management. CASE PRESENTATION A 43-year-old female patient with advanced pancreatic ductal adenocarcinoma (PDAC) was treated with toripalimab in combination with gemcitabine and nab-paclitaxel (T-GA) as the first-line treatment. She developed immune-related encephalopathy with stuttering as the main clinical symptom and Magnetic resonance imaging (MRI) showed multiple cerebral white matter demyelination changes, concomitant with asymptomatic cardiac enzyme elevation and hypothyroidism. The symptoms resolved after the discontinuation of toripalimab and corticosteroid treatment. CONCLUSIONS Stuttering might be an early sign of neurotoxicity which can be easily neglected during the treatment. These findings provide guidance for the identification of these rare and occult neurological irAEs (n-irAEs) in the clinical practice.
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Affiliation(s)
- Jianping He
- Abdominal Oncology Ward, West China Hospital, Sichuan University, Cancer Center, Chengdu, China
| | - Xi Chen
- Division of Radiotherapy, West China Hospital, Sichuan University, Cancer Center, Chengdu, China
| | - Ke Cheng
- Abdominal Oncology Ward, West China Hospital, Sichuan University, Cancer Center, Chengdu, China
| | - Wanrui Lv
- Abdominal Oncology Ward, West China Hospital, Sichuan University, Cancer Center, Chengdu, China
| | - Dan Cao
- Abdominal Oncology Ward, West China Hospital, Sichuan University, Cancer Center, Chengdu, China.
| | - Zhiping Li
- Abdominal Oncology Ward, West China Hospital, Sichuan University, Cancer Center, Chengdu, China. .,Division of Radiotherapy, West China Hospital, Sichuan University, Cancer Center, Chengdu, China.
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Yang L, Su J, Wang W, Zhou F. The efficacy and safety of Nab-paclitaxel plus gemcitabine versus mFOLFIRINOX in the first-line treatment of metastatic pancreatic cancer: a retrospective study. World J Surg Oncol 2023; 21:19. [PMID: 36691032 PMCID: PMC9869579 DOI: 10.1186/s12957-023-02896-z] [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: 08/17/2022] [Accepted: 01/10/2023] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Nab-paclitaxel plus gemcitabine (AG) and modified FOLFIRINOX (FFX) are two systemic therapies that have been widely used as standard first-line chemotherapy regimens in metastatic pancreatic cancer. However, since there is no clinical trial to directly compare the efficacy and safety of the two regimens, it is not clear which regimen is more effective. In this study, we aim to examine and compare the efficacy and safety of AG and FFX as first-line chemotherapy regimens in Chinese patients with metastatic pancreatic cancer in a real-world setting. METHODS We retrospectively evaluated the outcomes of 44 patients who were diagnosed with metastatic pancreatic cancer and were treated with either AG (n = 24) or FFX (n = 20) as first-line chemotherapy between March 2017 and February 2022 at Zhongnan Hospital of Wuhan University. Prognostic nutrition index (PNI) was calculated based on the serum albumin level and peripheral lymphocyte count. According to the optimal cutoff value of PNI, patients were divided into low PNI group (PNI < 43.70) and high PNI group (PNI ≥ 43.70). RESULTS Of 44 patients in this study, 24 were treated with AG, and 20 were treated with FFX as first-line chemotherapy. No significant differences in baseline characteristics were found between the two groups. The objective response rate (ORR) was 16.7% in the AG group and 20.0% in the FFX group. The disease control rate (DCR) was 70.8% in the AG group and 60.0% in the FFX group. There was no significant difference in PFS or OS between the AG group and the FFX group. The median progression-free survival (PFS) was 4.67 months (95% confidence interval [CI], 2.91-6.42) in the AG group and 3.33 months (95% CI, 1.87-4.79, p = 0.106) in the FFX group. The median overall survival (OS) was 9.00 months (95% CI, 7.86-12.19) in the AG group and 10.00 months (95% CI, 7.70-12.27, p = 0.608) in the FFX group. The second-line treatment rate was 62.5% in the AG group and 55.0% in the FFX group. Immune checkpoint inhibitors (ICIs) based regimens are common second-line treatment options whether in AG or FFX group. Significantly more grade 3-4 peripheral neuropathy occurred in the AG than FFX groups (4 (20.8%) vs 0 (0.0%), p = 0.030*). The patients in the PNI (Prognostic nutrition index) ≥ 43.7 group had a significant longer median OS (PNI ≥ 43.7 vs PNI < 43.7: 10.33 vs 8.00 months, p = 0.019). CONCLUSION AG and FFX showed comparable efficacy outcomes in patients with metastatic pancreatic cancer. Pancreatic cancer patients receiving first-line chemotherapy with good nutritional status are likely to have a better prognosis.
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Affiliation(s)
- Lei Yang
- grid.413247.70000 0004 1808 0969Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China ,grid.49470.3e0000 0001 2331 6153Department of Radiation Oncology & Medical Oncology, Zhongnan Hospital, Wuhan University, No 169 Donghu Road, Wuchang District, Hubei, Wuhan 430071 China
| | - Jing Su
- grid.413247.70000 0004 1808 0969Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China ,grid.49470.3e0000 0001 2331 6153Department of Radiation Oncology & Medical Oncology, Zhongnan Hospital, Wuhan University, No 169 Donghu Road, Wuchang District, Hubei, Wuhan 430071 China
| | - Wenbo Wang
- grid.413247.70000 0004 1808 0969Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China ,grid.49470.3e0000 0001 2331 6153Department of Radiation Oncology & Medical Oncology, Zhongnan Hospital, Wuhan University, No 169 Donghu Road, Wuchang District, Hubei, Wuhan 430071 China
| | - Fuxiang Zhou
- grid.413247.70000 0004 1808 0969Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China ,grid.49470.3e0000 0001 2331 6153Department of Radiation Oncology & Medical Oncology, Zhongnan Hospital, Wuhan University, No 169 Donghu Road, Wuchang District, Hubei, Wuhan 430071 China
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Hsu FT, Tsai CL, Chiang IT, Lan KH, Yueh PF, Liang WY, Lin CS, Chao Y, Lan KL. Synergistic effect of Abraxane that combines human IL15 fused with an albumin-binding domain on murine models of pancreatic ductal adenocarcinoma. J Cell Mol Med 2022; 26:1955-1968. [PMID: 35174623 PMCID: PMC8980892 DOI: 10.1111/jcmm.17220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/17/2021] [Accepted: 01/17/2022] [Indexed: 11/29/2022] Open
Abstract
Nab‐paclitaxel (Abraxane), which is a nanoparticle form of albumin‐bound paclitaxel, is one of the standard chemotherapies for pancreatic ductal adenocarcinoma (PDAC). This study determined the effect of Abraxane in combination with a fusion protein, hIL15‐ABD, on subcutaneous Panc02 and orthotopic KPC C57BL/6 murine PDAC models. Abraxane combined with hIL15‐ABD best suppressed tumour growth and produced a 40%–60% reduction in the tumour size for Panc02 and KPC, compared to the vehicle group. In the combination group, the active form of interferon‐γ (IFN‐γ)‐secreting CD8+ T cells and CD11b+CD86+ M1 macrophages in tumour infiltrating lymphocytes (TILs) were increased. In the tumour drainage lymph nodes (TDLNs) of the combination group, there was a 18% reduction in CD8+IFN‐γ+ T cells and a 0.47% reduction in CD4+CD25+FOXP3+ regulatory T cells, as opposed to 5.0% and 5.1% reductions, respectively, for the control group. Superior suppression of CD11b+GR‐1+ myeloid‐derived suppressor cells (MDSCs) and the induction of M1 macrophages in the spleen and bone marrow of mice were found in the combination group. Abraxane and hIL15‐ABD effectively suppressed NF‐κB‐mediated immune suppressive markers, including indoleamine 2,3‐dioxygenase (IDO), Foxp3 and VEGF. In conclusion, Abraxane combined with hIL15‐ABD stimulates the anticancer activity of effector cells, inhibits immunosuppressive cells within the tumour microenvironment (TME) of PDAC, and produces a greater inhibitory effect than individual monotherapies.
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Affiliation(s)
- Fei-Ting Hsu
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chang Liang Tsai
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - I-Tsang Chiang
- Medical administrative center, Show Chwan Memorial Hospital, Changhua, Taiwan.,Department of Radiation Oncology, Show Chwan Memorial Hospital, Changhua, Taiwan.,Department of Radiation Oncology, Chang Bing Show Chwan Memorial Hospital, Lukang, Taiwan.,Department of Medical Imaging and Radiological Sciences, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Keng-Hsueh Lan
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan.,Cancer Research Center, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Po-Fu Yueh
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan.,Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wen-Yi Liang
- Department of Pathology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chi-Shuo Lin
- Department of Radiation Oncology, National Yang Ming Chiao Tung University Hospital, Yilan, Taiwan
| | - Yee Chao
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Keng-Li Lan
- Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
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Liu L, Huang X, Shi F, Song J, Guo C, Yang J, Liang T, Bai X. Combination therapy for pancreatic cancer: anti-PD-(L)1-based strategy. J Exp Clin Cancer Res 2022; 41:56. [PMID: 35139879 PMCID: PMC8827285 DOI: 10.1186/s13046-022-02273-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 01/24/2022] [Indexed: 12/24/2022] Open
Abstract
Mortality associated with pancreatic cancer is among the highest of all malignancies, with a 5-year overall survival of 5-10%. Immunotherapy, represented by the blocking antibodies against programmed cell death protein 1 or its ligand 1 (anti-PD-(L)1), has achieved remarkable success in a number of malignancies. However, due to the immune-suppressive tumor microenvironment, the therapeutic efficacy of anti-PD-(L)1 in pancreatic cancer is far from expectation. To address such a fundamental issue, chemotherapy, radiotherapy, targeted therapy and even immunotherapy itself, have individually been attempted to combine with anti-PD-(L)1 in preclinical and clinical investigation. This review, with a particular focus on pancreatic cancer therapy, collects current anti-PD-(L)1-based combination strategy, highlights potential adverse effects of accumulative combination, and further points out future direction in optimization of combination, including targeting post-translational modification of PD-(L)1 and improving precision of treatment.
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Affiliation(s)
- Lingyue Liu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 79# Qingchun Road, Hangzhou, 310003, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Xing Huang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 79# Qingchun Road, Hangzhou, 310003, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
- Cancer Center, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Fukang Shi
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 79# Qingchun Road, Hangzhou, 310003, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Jinyuan Song
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 79# Qingchun Road, Hangzhou, 310003, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Chengxiang Guo
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 79# Qingchun Road, Hangzhou, 310003, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Jiaqi Yang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 79# Qingchun Road, Hangzhou, 310003, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
- Cancer Center, Zhejiang University, Hangzhou, 310058, Zhejiang, China
- The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Hangzhou, 310009, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, 310003, Zhejiang, China
| | - Tingbo Liang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 79# Qingchun Road, Hangzhou, 310003, Zhejiang, China.
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
- Cancer Center, Zhejiang University, Hangzhou, 310058, Zhejiang, China.
- The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Hangzhou, 310009, Zhejiang, China.
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, 310003, Zhejiang, China.
| | - Xueli Bai
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 79# Qingchun Road, Hangzhou, 310003, Zhejiang, China.
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
- Cancer Center, Zhejiang University, Hangzhou, 310058, Zhejiang, China.
- The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Hangzhou, 310009, Zhejiang, China.
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, 310003, Zhejiang, China.
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8
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Qin X, He L, Feng C, Fan D, Liang W, Wang Q, Fang J. Injectable Micelle-Incorporated Hydrogels for the Localized Chemo-Immunotherapy of Breast Tumors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:46270-46281. [PMID: 34550685 DOI: 10.1021/acsami.1c11563] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Although immune checkpoint blockade (ICB) holds potential for the treatment of various tumors, a considerable proportion of patients show a limited response to ICB therapy due to the low immunogenicity of a variety of tumors. It has been shown that some chemotherapeutics can turn low-immunogenic tumors into immunogenic phenotypes by inducing a cascade of immune responses. In this paper, we synthesized an injectable micelle-incorporated hydrogel, which was able to sequentially release the chemotherapeutic gemcitabine (GEM) and the hydrophobic indoleamine 2, 3-dioxygenase inhibitor, d-1-methyltryptophan (d-1MT) at tumor sites. The hydrogel was formed via the thiol-ene click reaction between the thiolated chondroitin sulfate and the micelle formed by amphiphilic methacrylated Pluronic F127, in which hydrophobic d-1MT was encapsulated in the core of the F127 micelles and the hydrophilic GEM was dispersed in the hydrogel network. The successive release of chemotherapeutics and immune checkpoint inhibitors at tumor tissues will first promote the infiltration of cytotoxic T lymphocytes and subsequently induce a robust antitumor immune response, ultimately exerting a synergetic therapeutic efficacy. In a 4T1 tumor-bearing mice model, our results showed that the combination of chemotherapy and immunotherapy through the micelle-incorporated hydrogel triggered an effective antitumor immune response and inhibited tumor metastasis to the lung. Our results highlight the potential of the injectable micelle-incorporated hydrogel for the localized chemo-immunotherapy in the treatment of breast tumors.
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Affiliation(s)
- Xianyan Qin
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Liming He
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Chenglan Feng
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Donghao Fan
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Wenlang Liang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Qin Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education and School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Jiyu Fang
- Advanced Materials Processing and Analysis and Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32816, United States
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