1
|
Tang MY, Shen X, Yuan RS, Li HY, Li XW, Jing YM, Zhang Y, Shen HH, Wang ZS, Zhou L, Yang YC, Wen HX, Su F. Plexin domain-containing 1 may be a biomarker of poor prognosis in hepatocellular carcinoma patients, may mediate immune evasion. World J Gastrointest Oncol 2024; 16:2091-2112. [PMID: 38764846 PMCID: PMC11099457 DOI: 10.4251/wjgo.v16.i5.2091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/17/2024] [Accepted: 02/22/2024] [Indexed: 05/09/2024] Open
Abstract
BACKGROUND For the first time, we investigated the oncological role of plexin domain-containing 1 (PLXDC1), also known as tumor endothelial marker 7 (TEM7), in hepatocellular carcinoma (HCC). AIM To investigate the oncological profile of PLXDC1 in HCC. METHODS Based on The Cancer Genome Atlas database, we analyzed the expression of PLXDC1 in HCC. Using immunohistochemistry, quantitative real-time polymerase chain reaction (qRT-PCR), and Western blotting, we validated our results. The prognostic value of PLXDC1 in HCC was analyzed by assessing its correlation with clinicopathological features, such as patient survival, methylation level, tumor immune microenvironment features, and immune cell surface checkpoint expression. Finally, to assess the immune evasion potential of PLXDC1 in HCC, we used the tumor immune dysfunction and exclusion (TIDE) website and immunohistochemical staining assays. RESULTS Based on immunohistochemistry, qRT-PCR, and Western blot assays, overexpression of PLXDC1 in HCC was associated with poor prognosis. Univariate and multivariate Cox analyses indicated that PLXDC1 might be an independent prognostic factor. In HCC patients with high methylation levels, the prognosis was worse than in patients with low methylation levels. Pathway enrichment analysis of HCC tissues indicated that genes upregulated in the high-PLXDC1 subgroup were enriched in mesenchymal and immune activation signaling, and TIDE assessment showed that the risk of immune evasion was significantly higher in the high-PLXDC1 subgroup compared to the low-PLXDC1 subgroup. The high-risk group had a significantly lower immune evasion rate as well as a poor prognosis, and PLXDC1-related risk scores were also associated with a poor prognosis. CONCLUSION As a result of this study analyzing PLXDC1 from multiple biological perspectives, it was revealed that it is a biomarker of poor prognosis for HCC patients, and that it plays a role in determining immune evasion status.
Collapse
Affiliation(s)
- Ming-Yue Tang
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Xue Shen
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Run-Sheng Yuan
- Otolaryngology and Head and Neck Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Hui-Yuan Li
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Xin-Wei Li
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Yi-Ming Jing
- Department of Neurology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Yue Zhang
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Hong-Hong Shen
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Zi-Shu Wang
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Lei Zhou
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Yun-Chuan Yang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - He-Xin Wen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Fang Su
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| |
Collapse
|
2
|
He M, Zhang M, Xu T, Xue S, Li D, Zhao Y, Zhi F, Ding D. Enhancing photodynamic immunotherapy by reprograming the immunosuppressive tumor microenvironment with hypoxia relief. J Control Release 2024; 368:233-250. [PMID: 38395154 DOI: 10.1016/j.jconrel.2024.02.030] [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: 11/01/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
Tumor hypoxia impairs the generation of reactive oxygen species and the induction of immunogenic cell death (ICD) for photodynamic therapy (PDT), thus impeding its efficacy and the subsequent immunotherapy. In addition, hypoxia plays a critical role in forming immunosuppressive tumor microenvironments (TME) by regulating the infiltration of immunosuppressive tumor-associated macrophages (TAMs) and the expression of programmed death ligand 1 (PD-L1). To simultaneously tackle these issues, a MnO2-containing albumin nanoplatform co-delivering IR780, NLG919, and a paclitaxel (PTX) dimer is designed to boost photodynamic immunotherapy. The MnO2-catalyzed oxygen supply bolsters the efficacy of PDT and PTX-mediated chemotherapy, collectively amplifying the induction of ICD and the expansion of tumor-specific cytotoxic T lymphocytes (CTLs). More importantly, hypoxia releif reshapes the immunosuppressive TME via down-regulating the intratumoral infiltration of M2-type TAMs and the PD-L1 expression of tumor cells to enhance the infiltration and efficacy of CTLs in combination with immune checkpoint blockade (ICB) by NLG919, consequently eradicating primary tumors and almost completely preventing tumor relapse and metastasis. This study sets an example of enhanced immunotherapy for breast cancers through dual ICD induction and simultaneous immunosuppression modulation via both hypoxia relief and ICB, providing a strategy for the treatment of other hypoxic and immunosuppressive cancers.
Collapse
Affiliation(s)
- Mengying He
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Mengyao Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Tao Xu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China; School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland (RCSI), Dublin D02 NY74, Ireland
| | - Shujuan Xue
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Dazhao Li
- Department of Neurosurgery, The First People's Hospital of Changzhou, Changzhou 213003, China; Clinical Medical Research Center, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Yanan Zhao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Feng Zhi
- Department of Neurosurgery, The First People's Hospital of Changzhou, Changzhou 213003, China; Clinical Medical Research Center, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China.
| | - Dawei Ding
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China.
| |
Collapse
|
3
|
Sun Q, Jin C. Cell signaling and epigenetic regulation of nicotine-induced carcinogenesis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123426. [PMID: 38295934 PMCID: PMC10939829 DOI: 10.1016/j.envpol.2024.123426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 11/22/2023] [Accepted: 01/21/2024] [Indexed: 02/05/2024]
Abstract
Nicotine, a naturally occurring tobacco alkaloid responsible for tobacco addiction, has long been considered non-carcinogenic. However, emerging evidence suggests that nicotine may possess carcinogenic properties in mice and could be a potential carcinogen in humans. This review aims to summarize the potential molecular mechanisms underlying nicotine-induced carcinogenesis, with a specific focus on epigenetic regulation and the activation of nicotinic acetylcholine receptors (nAChRs) in addition to genotoxicity and excess reactive oxygen species (ROS). Additionally, we explore a novel hypothesis regarding nicotine's carcinogenicity involving the downregulation of stem-loop binding protein (SLBP), a critical regulator of canonical histone mRNA, and the polyadenylation of canonical histone mRNA. By shedding light on these mechanisms, this review underscores the need for further research to elucidate the carcinogenic potential of nicotine and its implications for human health.
Collapse
Affiliation(s)
- Qi Sun
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, 10010, USA; Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang, Liaoning, 110013, China; Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education, China Medical University, Shenyang, Liaoning, 110122, China
| | - Chunyuan Jin
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, 10010, USA; Perlmutter Cancer Center, NYU Langone Health, New York, NY, 10016, USA.
| |
Collapse
|
4
|
Chen P, Xiao Q, Guo Z, Liang W, Liu O, Lin L, Huang Y, Zhu K, Ye G. Synthesis and characterization of 3-in-1 multifunctional lipiodol-doped Fe 3O 4@Poly (diallyl isophthalate) microspheres for arterial embolization, chemotherapy, and imaging. Biomed Mater 2024; 19:035011. [PMID: 38387046 DOI: 10.1088/1748-605x/ad2c1a] [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: 09/07/2023] [Accepted: 02/22/2024] [Indexed: 02/24/2024]
Abstract
Transcatheter arterial embolization plays a pivotal role in treating various diseases. However, the efficacy of embolization therapy in cancer treatment can be limited by several factors, such as inevitable incomplete or non-target embolization, and the tumor recurrence and metastasis caused by the hypoxic microenvironment. Moreover, it is essential to explore simpler, more economical, and efficient methods for microsphere synthesis. Herein, we achieved one-step photocatalytic synthesis of lipiodol-doped Fe3O4@Poly (diallyliso-phthalate) multifunctional microspheres (IFeD MS) for arterial embolization, chemotherapy, and imaging. The prepared microspheres are in the shape of dried plums, with a particle size of 100-300 μm. Lipiodol demonstrates a certain degree of chemotherapeutic activity, and the incorporation of Fe3O4enables the microspheres to exhibit magnetothermal response and magnetic resonance imaging capabilities. Furthermore, the radiopaque characteristics of both agents provide the microspheres with promising potential for computed tomography and digital radiography imaging. The renal embolization experiment in rabbits demonstrated that IFeD MS achieved significant embolization and chemotherapeutic effects. Biocompatibility experiments revealed that this embolic agent did not induce tissue damage or inflammation beyond the treatment area. Additionally, IFeD MS exhibited promising imaging potential. The results of this study imply that the developed multifunctional embolic agent IFeD MS may have significant potential in transforming tumors previously only suitable for palliative cares into resectable radical treatments.
Collapse
Affiliation(s)
- Piaoyi Chen
- The Fifth Affiliated Hospital, Guangdong Province NMPA and State Key Laboratory, The School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Qinglin Xiao
- The Fifth Affiliated Hospital, Guangdong Province NMPA and State Key Laboratory, The School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Zhaoxiong Guo
- Laboratory of Interventional Radiology, Department of Minimally Invasive Interventional Radiology and Department of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, 250 East Changgang Road, Guangzhou 510260, Guangdong Province, People's Republic of China
| | - Wei Liang
- Laboratory of Interventional Radiology, Department of Minimally Invasive Interventional Radiology and Department of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, 250 East Changgang Road, Guangzhou 510260, Guangdong Province, People's Republic of China
| | - Ou Liu
- Laboratory of Interventional Radiology, Department of Minimally Invasive Interventional Radiology and Department of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, 250 East Changgang Road, Guangzhou 510260, Guangdong Province, People's Republic of China
| | - Liteng Lin
- Laboratory of Interventional Radiology, Department of Minimally Invasive Interventional Radiology and Department of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, 250 East Changgang Road, Guangzhou 510260, Guangdong Province, People's Republic of China
| | - Yugang Huang
- The Fifth Affiliated Hospital, Guangdong Province NMPA and State Key Laboratory, The School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Kangshun Zhu
- Laboratory of Interventional Radiology, Department of Minimally Invasive Interventional Radiology and Department of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, 250 East Changgang Road, Guangzhou 510260, Guangdong Province, People's Republic of China
| | - Guodong Ye
- The Fifth Affiliated Hospital, Guangdong Province NMPA and State Key Laboratory, The School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
- Laboratory of Interventional Radiology, Department of Minimally Invasive Interventional Radiology and Department of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, 250 East Changgang Road, Guangzhou 510260, Guangdong Province, People's Republic of China
| |
Collapse
|
5
|
Hutchenreuther J, Nguyen J, Quesnel K, Vincent KM, Petitjean L, Bourgeois S, Boyd M, Bou-Gharios G, Postovit LM, Leask A. Cancer-associated Fibroblast-specific Expression of the Matricellular Protein CCN1 Coordinates Neovascularization and Stroma Deposition in Melanoma Metastasis. CANCER RESEARCH COMMUNICATIONS 2024; 4:556-570. [PMID: 38363129 PMCID: PMC10898341 DOI: 10.1158/2767-9764.crc-23-0571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/19/2024] [Accepted: 02/09/2024] [Indexed: 02/17/2024]
Abstract
Melanoma is the leading cause of skin cancer-related death. As prognosis of patients with melanoma remains problematic, identification of new therapeutic targets remains essential. Matricellular proteins are nonstructural extracellular matrix proteins. They are secreted into the tumor microenvironment to coordinate behavior among different cell types, yet their contribution to melanoma is underinvestigated. Examples of matricellular proteins include those comprising the CCN family. The CCN family member, CCN1, is highly proangiogenic. Herein, we show that, in human patients with melanoma, although found in several tumor cell types, CCN1 is highly expressed by a subset of cancer-associated fibroblasts (CAF) in patients with melanoma and this expression correlates positively with expression of proangiogenic genes and progressive disease/resistance to anti-PD1 checkpoint inhibitors. Consistent with these observations, in a syngeneic C57BL6 mouse model of melanoma, loss of CCN1 expression from Col1A2-Cre-, herein identified as "universal," fibroblasts, impaired metastasis of subcutaneously injected B16F10 tumor cells to lung, concomitant with disrupted neovascularization and collagen organization. Disruption of the extracellular matrix in the loss of CCN1 was validated using a novel artificial intelligence-based image analysis platform that revealed significantly decreased phenotypic fibrosis and composite morphometric collagen scores. As drug resistance is linked to matrix deposition and neoangiogenesis, these data suggest that CCN1, due to its multifaceted role, may represent a novel therapeutic target for drug-resistant melanoma. Our data further emphasize the essential role that cancer-associated, (universal) Col1A2-Cre-fibroblasts and extracellular matrix remodeling play in coordinating behavior among different cell types within the tumor microenvironment. SIGNIFICANCE In human patients, the expression of proangiogenic matricellular protein CCN1 in CAFs correlates positively with expression of stroma and angiogenic markers and progressive disease/resistance to checkpoint inhibitor therapy. In an animal model, loss of CCN1 from CAFs impaired metastasis of melanoma cells, neovascularization, and collagen deposition, emphasizing that CAFs coordinate cellular behavior in a tumor microenvironment and that CCN1 may be a novel target.
Collapse
Affiliation(s)
- James Hutchenreuther
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada
| | - John Nguyen
- College of Dentistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Katherine Quesnel
- Department of Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Krista M. Vincent
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
- Department of Medical Genetics, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | | | - Sophia Bourgeois
- Department of Biology, University of Western Ontario, London, Ontario, Canada
| | - Mark Boyd
- Office of the Vice President of Research, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - George Bou-Gharios
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Lynne-Marie Postovit
- Department of Biomedical and Molecular Sciences, Queens University, Kingston, Ontario, Canada
| | - Andrew Leask
- College of Dentistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| |
Collapse
|
6
|
Schito L, Rey-Keim S. Hypoxia signaling and metastatic progression. Semin Cancer Biol 2023; 97:42-49. [PMID: 37926346 DOI: 10.1016/j.semcancer.2023.11.001] [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: 08/27/2023] [Revised: 10/30/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
Disruption of oxygen homeostasis, resulting from an imbalance between O2 supply and demand during malignant proliferation, leads to the development of hypoxic tumor microenvironments that promote the acquisition of aggressive cancer cell phenotypes linked to metastasis and patient mortality. In this review, the mechanistic links between tumor hypoxia and metastatic progression are presented. Current status and perspectives of targeting hypoxia signaling pathways as a strategy to halt cancer cell metastatic activities are emphasized.
Collapse
Affiliation(s)
- Luana Schito
- UCD School of Medicine, Belfield, Dublin D04 C7X2, Ireland; UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin D04 C7X2, Ireland.
| | - Sergio Rey-Keim
- UCD School of Medicine, Belfield, Dublin D04 C7X2, Ireland; UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin D04 C7X2, Ireland.
| |
Collapse
|
7
|
Li X, Zhou J, Wang X, Li C, Ma Z, Wan Q, Peng F. New advances in the research of clinical treatment and novel anticancer agents in tumor angiogenesis. Biomed Pharmacother 2023; 163:114806. [PMID: 37163782 DOI: 10.1016/j.biopha.2023.114806] [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: 02/10/2023] [Revised: 04/24/2023] [Accepted: 04/30/2023] [Indexed: 05/12/2023] Open
Abstract
In 1971, Folkman proposed that tumors could be limited to very small sizes by blocking angiogenesis. Angiogenesis is the generation of new blood vessels from pre-existing vessels, considered to be one of the important processes in tumor growth and metastasis. Angiogenesis is a complex process regulated by various factors and involves many secreted factors and signaling pathways. Angiogenesis is important in the transport of oxygen and nutrients to the tumor during tumor development. Therefore, inhibition of angiogenesis has become an important strategy in the clinical management of many solid tumors. Combination therapies of angiogenesis inhibitors with radiotherapy and chemotherapy are often used in clinical practice. In this article, we will review common targets against angiogenesis, the most common and up-to-date anti-angiogenic drugs and clinical treatments in recent years, including active ingredients from chemical and herbal medicines.
Collapse
Affiliation(s)
- Xin Li
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Jianbo Zhou
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xue Wang
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chunxi Li
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zifan Ma
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Qiaoling Wan
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Fu Peng
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| |
Collapse
|
8
|
Torres Quintas S, Canha-Borges A, Oliveira MJ, Sarmento B, Castro F. Special Issue: Nanotherapeutics in Women's Health Emerging Nanotechnologies for Triple-Negative Breast Cancer Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300666. [PMID: 36978237 DOI: 10.1002/smll.202300666] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Breast cancer appears as the major cause of cancer-related deaths in women, with more than 2 260 000 cases reported worldwide in 2020, resulting in 684 996 deaths. Triple-negative breast cancer (TNBC), characterized by the absence of estrogen, progesterone, and human epidermal growth factor type 2 receptors, represents ≈20% of all breast cancers. TNBC has a highly aggressive clinical course and is more prevalent in younger women. The standard therapy for advanced TNBC is chemotherapy, but responses are often short-lived, with high rate of relapse. The lack of therapeutic targets and the limited therapeutic options confer to individuals suffering from TNBC the poorest prognosis among breast cancer patients, remaining a major clinical challenge. In recent years, advances in cancer nanomedicine provided innovative therapeutic options, as nanoformulations play an important role in overcoming the shortcomings left by conventional therapies: payload degradation and its low solubility, stability, and circulating half-life, and difficulties regarding biodistribution due to physiological and biological barriers. In this integrative review, the recent advances in the nanomedicine field for TNBC treatment, including the novel nanoparticle-, exosome-, and hybrid-based therapeutic formulations are summarized and their drawbacks and challenges are discussed for future clinical applications.
Collapse
Affiliation(s)
- Sofia Torres Quintas
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Rua Jorge de Viterbo Ferreira 228, Porto, 4050-313, Portugal
| | - Ana Canha-Borges
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Rua Jorge de Viterbo Ferreira 228, Porto, 4050-313, Portugal
| | - Maria José Oliveira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Rua Jorge de Viterbo Ferreira 228, Porto, 4050-313, Portugal
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- IUCS-CESPU - Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra 1317, 4585-116, Gandra, Portugal
| | - Flávia Castro
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
| |
Collapse
|
9
|
Circulating Biomarkers in Patients With Locally Advanced or Metastatic Renal Cell Carcinoma Treated With Everolimus in the Pre-nephrectomy Setting. Clin Oncol (R Coll Radiol) 2023; 35:e245-e255. [PMID: 36526521 DOI: 10.1016/j.clon.2022.11.012] [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: 05/05/2022] [Revised: 09/28/2022] [Accepted: 11/18/2022] [Indexed: 12/23/2022]
Abstract
Many drugs are available in renal cell carcinoma (RCC), yet clinicians are still looking for predictive biomarkers of disease recurrence or progression supporting more personalised treatments. An assessment of circulating biomarkers over time was carried out in this French, open-label, single-arm, multicentre trial conducted in 25 patients with either locally advanced (n = 14) or metastatic RCC (n = 11) who received everolimus (10 mg daily) for 6 weeks prior to nephrectomy (NEORAD, NCT01715935). Circulating biomarkers, including circulating tumour cells, haematopoietic and endothelial cells, plasma angiogenesis and inflammatory markers were quantified at baseline, upon everolimus and post-nephrectomy. We assessed tumour burden, objective response rate upon RECIST1.1, disease-free survival (DFS) and progression-free survival (PFS). The correlation between circulating biomarkers was evaluated with multiple factor analysis and biomarker association with DFS/PFS by Cox regression. No objective response rate was obtained before nephrectomy. Upon everolimus, neutrophils, platelets and sVEGFR2 significantly decreased. We did not find any association between circulating biomarkers and DFS/PFS, but patients with the highest tumour burden at baseline had significantly higher plasma levels of interleukin-6, an inflammatory circulating biomarker, and lower levels of sVEGFR2, related to angiogenesis. Further understanding of the link between these circulating biomarkers could help to optimise drug combinations in RCC.
Collapse
|
10
|
Li X, Fan Y, Tang M, Li H, Zhang Y, Mi J, Wang Y, Zhao M, Wang Z, Su F. PLXDC1 Can Be a Biomarker for Poor Prognosis and Immune Evasion in Gastric Cancer. J Inflamm Res 2022; 15:5439-5455. [PMID: 36147688 PMCID: PMC9488617 DOI: 10.2147/jir.s383191] [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: 07/21/2022] [Accepted: 09/07/2022] [Indexed: 11/23/2022] Open
Abstract
Background Research has revealed that Plexin domain containing 1 (PLXDC1) is correlated with the prognosis of a variety of tumors, but its role in the tumor microenvironment (TME) of gastric cancer has not been reported. Methods In this study, we analyzed PLXDC1 expression in gastric cancer using the Oncomine and the Cancer Genome Atlas (TCGA) databases and immunohistochemical staining experiments, and performed prognostic assessment with data from the TCGA and Kaplan–Meier Plotter databases. The immunomodulatory role of PLXDC1 in the gastric cancer TME was analyzed by signaling pathway enrichment, immune cell correlation analysis, immunomodulator risk model construction and immunohistochemical staining experiments of immune cells. Results The results indicated that PLXDC1 was overexpressed in gastric cancer and that its overexpression was associated with poor prognosis. Multivariate Cox analysis revealed that PLXDC1 could be an independent biomarker of the risk of gastric cancer. Signaling pathway enrichment revealed that high PLXDC1 expression was involved in signaling pathways related to immune activation and stromal activation, and Tumor Immune Dysfunction and Exclusion (TIDE) assessment indicated that high PLXDC1 expression was associated with a significantly higher risk of immune evasion than low PLXDC1 expression. A Cox risk model based on PLXDC1-associated immunomodulators also presented poor prognosis, and immune evasion was significantly higher in the high-risk group than in the low-risk group. In addition, immunohistochemical staining of CD8/CD3/CD4+ T cells in the high and low PLXDC1 expression groups also observed immune cell distribution characteristics of immune evasion. Conclusion This study analyzed PLXDC1 from multiple biological perspectives and revealed that PLXDC1 can be a biomarker for poor prognosis and immune evasion in gastric cancer.
Collapse
Affiliation(s)
- Xinwei Li
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, People's Republic of China
| | - Yongfei Fan
- Department of Thoracic Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, People's Republic of China
| | - Mingyue Tang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, People's Republic of China
| | - Huiyuan Li
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, People's Republic of China
| | - Yue Zhang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, People's Republic of China
| | - Jiaqi Mi
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, People's Republic of China
| | - Yanyan Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, People's Republic of China
| | - Menglin Zhao
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, People's Republic of China
| | - Zishu Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, People's Republic of China
| | - Fang Su
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, People's Republic of China
| |
Collapse
|
11
|
Zhang J, Zhou X, Hao H. Macrophage phenotype-switching in cancer. Eur J Pharmacol 2022; 931:175229. [PMID: 36002039 DOI: 10.1016/j.ejphar.2022.175229] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 08/10/2022] [Accepted: 08/17/2022] [Indexed: 12/20/2022]
Abstract
Tumour-associated macrophages (TAMs) have been found to be of great importance in tumorigenesis and in promoting malignant progression, including tumour angiogenesis and metastasis. Moreover, the TAM phenotype is more likely to be an M2 type. Transforming TAMs by M2-polarization into the tumour-suppressive M1-phenotype is an important approach for tumour therapy. In this review, we analysed the effects of the tumour microenvironment on macrophage phenotype-switching, including hypoxia and cytokines, and the mechanisms of drugs targeting TAMs. Furthermore, we analysed the effects of exosomes on macrophage polarization, phenotype switching of macrophages, and the mechanisms of lipid mediators targeting TAMs.
Collapse
Affiliation(s)
- Jiamin Zhang
- Department of Pathophysiology, Medical College of Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Xiaoyan Zhou
- Department of Pathophysiology, Medical College of Nanchang University, Nanchang, Jiangxi, 330006, PR China.
| | - Hua Hao
- Department of Pathology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, 200090, PR China.
| |
Collapse
|
12
|
Hypoxia orchestrates the lymphovascular–immune ensemble in cancer. Trends Cancer 2022; 8:771-784. [DOI: 10.1016/j.trecan.2022.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/31/2022] [Accepted: 04/25/2022] [Indexed: 11/18/2022]
|
13
|
Discovering the Triad between Nav1.5, Breast Cancer, and the Immune System: A Fundamental Review and Future Perspectives. Biomolecules 2022; 12:biom12020310. [PMID: 35204811 PMCID: PMC8869595 DOI: 10.3390/biom12020310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/12/2022] [Accepted: 02/13/2022] [Indexed: 02/05/2023] Open
Abstract
Nav1.5 is one of the nine voltage-gated sodium channel-alpha subunit (VGSC-α) family members. The Nav1.5 channel typically carries an inward sodium ion current that depolarises the membrane potential during the upstroke of the cardiac action potential. The neonatal isoform of Nav1.5, nNav1.5, is produced via VGSC-α alternative splicing. nNav1.5 is known to potentiate breast cancer metastasis. Despite their well-known biological functions, the immunological perspectives of these channels are poorly explored. The current review has attempted to summarise the triad between Nav1.5 (nNav1.5), breast cancer, and the immune system. To date, there is no such review available that encompasses these three components as most reviews focus on the molecular and pharmacological prospects of Nav1.5. This review is divided into three major subsections: (1) the review highlights the roles of Nav1.5 and nNav1.5 in potentiating the progression of breast cancer, (2) focuses on the general connection between breast cancer and the immune system, and finally (3) the review emphasises the involvements of Nav1.5 and nNav1.5 in the functionality of the immune system and the immunogenicity. Compared to the other subsections, section three is pretty unexploited; it would be interesting to study this subsection as it completes the triad.
Collapse
|
14
|
Ray SK, Mukherjee S. Directing hypoxic tumor microenvironment and HIF to illuminate cancer immunotherapy's existing prospects and challenges in drug targets. Curr Drug Targets 2022; 23:471-485. [PMID: 35021970 DOI: 10.2174/1389450123666220111114649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 11/22/2022]
Abstract
Cancer is now also reflected as a disease of the tumor microenvironment, primarily supposed to be a decontrolled genetic and cellular expression disease. Over the past two decades, significant and rapid progress has been made in recognizing the dynamics of the tumor's microenvironment and its contribution to influencing the response to various anti-cancer therapies and drugs. Modulations in the tumor microenvironment and immune checkpoint blockade are interesting in cancer immunotherapy and drug targets. Simultaneously, the immunotherapeutic strategy can be done by modulating the immune regulatory pathway; however, the tumor microenvironment plays an essential role in suppressing the antitumor's immunity by its substantial heterogeneity. Hypoxia inducible factor (HIF) is a significant contributor to solid tumor heterogeneity and a key stressor in the tumor microenvironment to drive adaptations to prevent immune surveillance. Checkpoint inhibitors here halt the ability of cancer cells to stop the immune system from activating, and in turn, amplify your body's immune system to help destroy cancer cells. Common checkpoints that these inhibitors affect are the PD-1/PD-L1 and CTLA-4 pathways and important drugs involved are Ipilimumab and Nivolumab, mainly along with other drugs in this group. Targeting the hypoxic tumor microenvironment may provide a novel immunotherapy strategy, break down traditional cancer therapy resistance, and build the framework for personalized precision medicine and cancer drug targets. We hope that this knowledge can provide insight into the therapeutic potential of targeting Hypoxia and help to develop novel combination approaches of cancer drugs to increase the effectiveness of existing cancer therapies, including immunotherapy.
Collapse
Affiliation(s)
| | - Sukhes Mukherjee
- Department of Biochemistry. All India Institute of Medical Sciences. Bhopal, Madhya pradesh-462020. India
| |
Collapse
|
15
|
Newport EL, Pedrosa AR, Njegic A, Hodivala-Dilke KM, Muñoz-Félix JM. Improved Immunotherapy Efficacy by Vascular Modulation. Cancers (Basel) 2021; 13:5207. [PMID: 34680355 PMCID: PMC8533721 DOI: 10.3390/cancers13205207] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 12/26/2022] Open
Abstract
Several strategies have been developed to modulate the tumour vasculature for cancer therapy including anti-angiogenesis and vascular normalisation. Vasculature modulation results in changes to the tumour microenvironment including oxygenation and immune cell infiltration, therefore lending itself to combination with cancer therapy. The development of immunotherapies has led to significant improvements in cancer treatment. Particularly promising are immune checkpoint blockade and CAR T cell therapies, which use antibodies against negative regulators of T cell activation and T cells reprogrammed to better target tumour antigens, respectively. However, while immunotherapy is successful in some patients, including those with advanced or metastatic cancers, only a subset of patients respond. Therefore, better predictors of patient response and methods to overcome resistance warrant investigation. Poor, or periphery-limited, T cell infiltration in the tumour is associated with poor responses to immunotherapy. Given that (1) lymphocyte recruitment requires leucocyte-endothelial cell adhesion and (2) the vasculature controls tumour oxygenation and plays a pivotal role in T cell infiltration and activation, vessel targeting strategies including anti-angiogenesis and vascular normalisation in combination with immunotherapy are providing possible new strategies to enhance therapy. Here, we review the progress of vessel modulation in enhancing immunotherapy efficacy.
Collapse
Affiliation(s)
- Emma L. Newport
- Centre for Tumour Microenvironment, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK; (E.L.N.); (A.R.P.); (A.N.); (K.M.H.-D.)
| | - Ana Rita Pedrosa
- Centre for Tumour Microenvironment, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK; (E.L.N.); (A.R.P.); (A.N.); (K.M.H.-D.)
| | - Alexandra Njegic
- Centre for Tumour Microenvironment, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK; (E.L.N.); (A.R.P.); (A.N.); (K.M.H.-D.)
| | - Kairbaan M. Hodivala-Dilke
- Centre for Tumour Microenvironment, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK; (E.L.N.); (A.R.P.); (A.N.); (K.M.H.-D.)
| | - José M. Muñoz-Félix
- Centre for Tumour Microenvironment, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK; (E.L.N.); (A.R.P.); (A.N.); (K.M.H.-D.)
- Department of Biochemistry and Molecular Biology, Institute of Biomedical Research of Salamanca (IBSAL), Universidad de Salamanca Spain, 37007 Salamanca, Spain
| |
Collapse
|
16
|
Genome-wide analysis of the hypoxia-related DNA methylation-driven genes in lung adenocarcinoma progression. Biosci Rep 2021; 40:222062. [PMID: 32031203 PMCID: PMC7033312 DOI: 10.1042/bsr20194200] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/01/2020] [Accepted: 02/04/2020] [Indexed: 12/15/2022] Open
Abstract
Lung adenocarcinoma (LUAD) is a common type of lung cancer with high incidence and poor prognosis. Hypoxia and DNA methylation play important regulatory roles in cancer progression. The purpose of the present study was to explore the relationship between hypoxia and DNA methylation, and to identify key genes for hypoxia-regulated LUAD progression. Hypoxia score (HS) was calculated using the GSVA algorithm. Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment and protein-protein interaction (PPI) analysis were performed using clusterProfile package, STRING database and Cytoscape software. Kaplan-Meier curves of overall survival (OS) and disease-free survival (DFS) were drawn using R software. Smoking status and cancer stages were significantly associated with LUAD hypoxia, and hypoxia is a poor prognostic factor for LUAD. Compared with HS-low group, 1803 aberrantly methylated DEGs were identified in HS-high group. KEGG analysis showed that the 1803 genes were enriched in the metabolic pathways associated with hypoxia stress, angiogenesis and cancer progression. FAM20C, MYLIP and COL7A1 were identified as the hypoxia-related key genes in LUAD progression, which were regulated by DNA methylation. Hypoxia in LUAD tumor cells led to changes in DNA methylation patterns. In-depth study of the relationship between hypoxia and DNA methylation is helpful to elucidate the mechanism of tumorigenesis, and provides new ideas for LUAD treatment.
Collapse
|
17
|
Li Z, Liu Y, Fang X, Shu Z. Nanomaterials Enhance the Immunomodulatory Effect of Molecular Targeted Therapy. Int J Nanomedicine 2021; 16:1631-1661. [PMID: 33688183 PMCID: PMC7935456 DOI: 10.2147/ijn.s290346] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/23/2021] [Indexed: 01/22/2023] Open
Abstract
Molecular targeted therapy, a tumor therapy strategy that inhibits specific oncogenic targets, has been shown to modulate the immune response. In addition to directly inhibiting the proliferation and metastasis of tumor cells, molecular targeted drugs can activate the immune system through a variety of mechanisms, including by promoting tumor antigen processing and presentation, increasing intratumoral T cell infiltration, enhancing T cell activation and function, and attenuating the immunosuppressive effect of the tumor microenvironment. However, poor water solubility, insufficient accumulation at the tumor site, and nonspecific targeting of immune cells limit their application. To this end, a variety of nanomaterials have been developed to overcome these obstacles and amplify the immunomodulatory effects of molecular targeted drugs. In this review, we summarize the impact of molecular targeted drugs on the antitumor immune response according to their mechanisms, highlight the advantages of nanomaterials in enhancing the immunomodulatory effect of molecular targeted therapy, and discuss the current challenges and future prospects.
Collapse
Affiliation(s)
- Zhongmin Li
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, People's Republic of China
| | - Yilun Liu
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, People's Republic of China
| | - Xuedong Fang
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, People's Republic of China
| | - Zhenbo Shu
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, People's Republic of China
| |
Collapse
|
18
|
Antitumor potential of the protein phosphatase inhibitor, cantharidin, and selected derivatives. Bioorg Med Chem 2021; 32:116012. [PMID: 33454654 DOI: 10.1016/j.bmc.2021.116012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 12/21/2022]
Abstract
Cantharidin is a potent natural protein phosphatase monoterpene anhydride inhibitor secreted by several species of blister beetle, with its demethylated anhydride analogue, (S)-palasonin, occurring as a constituent of the higher plant Butea frondosa. Cantharidin shows both potent protein phosphatase inhibitory and cancer cell cytotoxic activities, but possible preclinical development of this anhydride has been limited thus far by its toxicity. Thus, several synthetic derivatives of cantharidin have been prepared, of which some compounds exhibit improved antitumor potential and may have use as lead compounds. In the present review, the potential antitumor activity, structure-activity relationships, and development of cantharidin-based anticancer drug conjugates are summarized, with protein phosphatase-related and other types of mechanisms of action discussed. Protein phosphatases play a key role in the tumor microenvironment, and thus described herein is also the potential for developing new tumor microenvironment-targeted cancer chemotherapeutic agents, based on cantharidin and its naturally occurring analogues and synthetic derivatives.
Collapse
|
19
|
He J, Wang J, Li S, Li T, Chen K, Zhang S. Hypoxia-inhibited miR-338-3p suppresses breast cancer progression by directly targeting ZEB2. Cancer Sci 2020; 111:3550-3563. [PMID: 32726486 PMCID: PMC7540984 DOI: 10.1111/cas.14589] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 06/11/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023] Open
Abstract
Hypoxia plays an essential role in the development of various cancers. The biological function and underlying mechanism of microRNA-338-3p (miR-338-3p) under hypoxia remain unclarified in breast cancer (BC). Herein, we performed bioinformatics, gain and loss of function of miR-338-3p, a luciferase reporter assay, and chromatin immunoprecipitation (ChIP) in vitro and in a tumor xenograft model. We also explored the potential signaling pathways of miR-338-3p in BC. We detected the expression levels and prognostic significance of miR-338-3p in BC by qRT-PCR and in situ hybridization. MiR-338-3p was lowly expressed in BC tissues and cell lines, and BC patients with underexpression of miR-338-3p tend to have a dismal overall survival. Functional experiments showed that miR-338-3p overexpression inhibited BC cell proliferation, invasion, migration, and epithelial-mesenchymal transition (EMT) process, whereas miR-338-3p silencing abolished these biological behaviors. Zinc finger E-box-binding homeobox 2 (ZEB2) was validated as a direct target of miR-338-3p. ZEB2 overexpression promoted while ZEB2 knockdown abolished the promoted effects of miR-338-3p knockdown on cell biological behaviors through the NF-ĸB and PI3K/Akt signal pathways. HIF1A can transcriptionally downregulate miR-338-3p under hypoxia. In total, miR-338-3p counteracts hypoxia-induced BC cells growth, migration, invasion, and EMT via the ZEB2 and NF-ĸB/PI3K signal pathways, implicating miR-338-3p may be a promising target to treat patients with BC.
Collapse
Affiliation(s)
- Juanjuan He
- Department of Breast Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Jing Wang
- Department of Breast Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Songchao Li
- Department of Urology Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Teng Li
- Department of Urology Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Kunlun Chen
- Department of Hepatobiliary and Pancreatic Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Shaojin Zhang
- Department of Urology Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| |
Collapse
|
20
|
Ben Q, An W, Sun Y, Qian A, Liu J, Zou D, Yuan Y. A nicotine-induced positive feedback loop between HIF1A and YAP1 contributes to epithelial-to-mesenchymal transition in pancreatic ductal adenocarcinoma. J Exp Clin Cancer Res 2020; 39:181. [PMID: 32894161 PMCID: PMC7487530 DOI: 10.1186/s13046-020-01689-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/25/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Nicotine, an active ingredient in tobacco, can promote epithelial-to-mesenchymal transition (EMT) processes that enhance the aggressiveness of a number of human cancers. In the present study, we investigated whether cigarette smoke/nicotine drives EMT in pancreatic ductal adenocarcinoma (PDAC). METHODS Quantitative real-time PCR, western blot, immunohistochemistry, and immunofluorescence assays were used to evaluate Yes-associated protein 1 (YAP1) expression associated with cigarette smoking in human PDAC tissue samples and with nicotine exposure in PDAC cell lines. Bioinformatics, loss- and gain- of- function experiments, luciferase reporter assays, chromatin immunoprecipitation (ChIP), and murine tumor xenograft models were performed to examine the function of YAP1 in PDAC and to identify potential mechanisms of action. RESULTS Exposure to smoking or nicotine promoted EMT and tumor growth in PDAC cells and in xenograft tumors. Functional studies revealed that YAP1 might drive nicotine-stimulated EMT and oncogenic activity in vitro and in vivo. In human PDAC tissues, upregulation of YAP1 was associated with "ever smoking" status and poor overall survival. In term of mechanism, hypoxia inducible factor (HIF)1A promoted YAP1 nuclear localization and YAP1 transactivation by directly binding to the hypoxia responsive elements of the YAP1 promoter upon nicotine treatment. Nicotine stimulated HIF1A and YAP1 expression by activating cholinergic receptor nicotinic alpha7 (CHRNA7). In addition, YAP1 increased and sustained the protein stability of HIF1A. CONCLUSIONS These data demonstrate that YAP1 enhances nicotine-stimulated EMT and tumor progression of PDAC through a HIF1A/YAP1 positive feedback loop. Developing inhibitors that specifically target YAP1 may provide a novel therapeutic approach to suppress PDAC growth, especially in PDAC patients who have a history of smoking.
Collapse
MESH Headings
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- Apoptosis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Pancreatic Ductal/drug therapy
- Carcinoma, Pancreatic Ductal/metabolism
- Carcinoma, Pancreatic Ductal/pathology
- Cell Movement
- Cell Proliferation
- Epithelial-Mesenchymal Transition
- Feedback, Physiological
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Nicotine/pharmacology
- Nicotinic Agonists/pharmacology
- Pancreatic Neoplasms/drug therapy
- Pancreatic Neoplasms/metabolism
- Pancreatic Neoplasms/pathology
- Prognosis
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
- YAP-Signaling Proteins
- Pancreatic Neoplasms
Collapse
Affiliation(s)
- Qiwen Ben
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, PR China
| | - Wei An
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Yunwei Sun
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, PR China
| | - Aihua Qian
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, PR China
| | - Jun Liu
- Department of Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Duowu Zou
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, PR China.
| | - Yaozong Yuan
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, PR China.
| |
Collapse
|
21
|
Yosten GLC. AJP-Regulatory, Integrative and Comparative Physiology: Looking Toward the Future. Am J Physiol Regul Integr Comp Physiol 2020; 319:R82-R86. [DOI: 10.1152/ajpregu.00104.2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
22
|
Hypoxia: Turning vessels into vassals of cancer immunotolerance. Cancer Lett 2020; 487:74-84. [PMID: 32470491 DOI: 10.1016/j.canlet.2020.05.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/27/2020] [Accepted: 05/12/2020] [Indexed: 12/12/2022]
Abstract
Hypoxia is a universal feature of solid cancers caused by a mismatch between cellular oxygen supply and consumption. To meet the increased demand for oxygen, hypoxic cancer cells (CCs) induce a multifaceted process known as angiogenesis, wherein new vessels are formed by the sprouting of pre-existing ones. In addition to providing oxygen for growth and an exit route for dissemination, angiogenic vessels and factors are co-opted by CCs to enable the generation of an immunotolerant, hypoxic tumor microenvironment, leading to therapeutic failure and mortality. In this review, we discuss how hypoxia-inducible factors (HIFs), the mechanistic target of rapamycin (mTOR), and the unfolded protein response (UPR) control angiogenic factors serving both vascular and immunomodulatory functions in the tumor microenvironment. Possible therapeutic strategies, wherein targeting oxygen sensing might enhance anti-angiogenic and immunologically-mediated anti-cancer responses, are suggested.
Collapse
|
23
|
Samson WK. Looking Back on Seven Years of Regulatory, Integrative and Comparative Physiology. Am J Physiol Regul Integr Comp Physiol 2020; 318:R565-R566. [PMID: 32048873 DOI: 10.1152/ajpregu.00017.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Willis K Samson
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri
| |
Collapse
|
24
|
Samson WK, Carter JR, Yosten GLC. The 2019 New Investigator Review Award Announcement. Am J Physiol Regul Integr Comp Physiol 2020; 318:R189-R190. [PMID: 31899670 DOI: 10.1152/ajpregu.00362.2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Willis K Samson
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri
| | - Jason R Carter
- Office of Research, Economic Development and Graduate Education, Montana State University, Bozeman, Montana
| | - Gina L C Yosten
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri
| |
Collapse
|
25
|
Nardi F, Fitchev P, Brooks KM, Franco OE, Cheng K, Hayward SW, Welte MA, Crawford SE. Lipid droplet velocity is a microenvironmental sensor of aggressive tumors regulated by V-ATPase and PEDF. J Transl Med 2019; 99:1822-1834. [PMID: 31409893 PMCID: PMC7289525 DOI: 10.1038/s41374-019-0296-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 12/19/2022] Open
Abstract
Lipid droplets (LDs) utilize microtubules (MTs) to participate in intracellular trafficking of cargo proteins. Cancer cells accumulate LDs and acidify their tumor microenvironment (TME) by increasing the proton pump V-ATPase. However, it is not known whether these two metabolic changes are mechanistically related or influence LD movement. We postulated that LD density and velocity are progressively increased with tumor aggressiveness and are dependent on V-ATPase and the lipolysis regulator pigment epithelium-derived factor (PEDF). LD density was assessed in human prostate cancer (PCa) specimens across Gleason scores (GS) 6-8. LD distribution and velocity were analyzed in low and highly aggressive tumors using live-cell imaging and in cells exposed to low pH and/or treated with V-ATPase inhibitors. The MT network was disrupted and analyzed by α-tubulin staining. LD density positively correlated with advancing GS in human tumors. Acidification promoted peripheral localization and clustering of LDs. Highly aggressive prostate, breast, and pancreatic cell lines had significantly higher maximum LD velocity (LDVmax) than less aggressive and benign cells. LDVmax was MT-dependent and suppressed by blocking V-ATPase directly or indirectly with PEDF. Upon lowering pH, LDs moved to the cell periphery and carried metalloproteinases. These results suggest that acidification of the TME can alter intracellular LD movement and augment velocity in cancer. Restoration of PEDF or blockade of V-ATPase can normalize LD distribution and decrease velocity. This study identifies V-ATPase and PEDF as new modulators of LD trafficking in the cancer microenvironment.
Collapse
Affiliation(s)
- Francesca Nardi
- Department of Surgery, NorthShore University Research Institute, Affiliate of University of Chicago Pritzker School of Medicine, Evanston, IL 60201
| | - Philip Fitchev
- Department of Surgery, NorthShore University Research Institute, Affiliate of University of Chicago Pritzker School of Medicine, Evanston, IL 60201
| | - Kyrsten M. Brooks
- Department of Pathology, Saint Louis University School of Medicine, 1402 South Grand Blvd., Saint Louis, MO 63104
| | - Omar E. Franco
- Department of Surgery, NorthShore University Research Institute, Affiliate of University of Chicago Pritzker School of Medicine, Evanston, IL 60201
| | - Kevin Cheng
- Department of Pathology, Saint Louis University School of Medicine, 1402 South Grand Blvd., Saint Louis, MO 63104
| | - Simon W. Hayward
- Department of Surgery, NorthShore University Research Institute, Affiliate of University of Chicago Pritzker School of Medicine, Evanston, IL 60201
| | - Michael A. Welte
- Department of Biology, University of Rochester, RC Box 270211, Rochester, NY 14627
| | - Susan E. Crawford
- Department of Surgery, NorthShore University Research Institute, Affiliate of University of Chicago Pritzker School of Medicine, Evanston, IL 60201,Department of Pathology, Saint Louis University School of Medicine, 1402 South Grand Blvd., Saint Louis, MO 63104
| |
Collapse
|
26
|
Pullan JE, Confeld MI, Osborn JK, Kim J, Sarkar K, Mallik S. Exosomes as Drug Carriers for Cancer Therapy. Mol Pharm 2019; 16:1789-1798. [PMID: 30951627 DOI: 10.1021/acs.molpharmaceut.9b00104] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Exosomes, biological extracellular vesicles, have recently begun to find use in targeted drug delivery in solid tumor research. Ranging from 30-120 nm in size, exosomes are secreted from cells and isolated from bodily fluids. Exosomes provide a unique material platform due to their characteristics, including physical properties such as stability, biocompatibility, permeability, low toxicity, and low immunogenicity-all critical to the success of any nanoparticle drug delivery system. In addition to traditional chemotherapeutics, natural products and RNA have been encapsulated for the treatment of breast, pancreatic, lung, prostate cancers, and glioblastoma. This review discusses current research on exosomes for drug delivery to solid tumors.
Collapse
Affiliation(s)
- Jessica E Pullan
- Department of Pharmaceutical Sciences , North Dakota State University , Fargo , North Dakota 58105 , United States
| | - Matthew I Confeld
- Department of Pharmaceutical Sciences , North Dakota State University , Fargo , North Dakota 58105 , United States
| | - Jenna K Osborn
- Department of Mechanical and Aerospace Engineering , George Washington University , Washington , D.C. 20052 , United States
| | - Jiha Kim
- Department of Biological Sciences , North Dakota State University , Fargo , North Dakota 58105 , United States
| | - Kausik Sarkar
- Department of Mechanical and Aerospace Engineering , George Washington University , Washington , D.C. 20052 , United States
| | - Sanku Mallik
- Department of Pharmaceutical Sciences , North Dakota State University , Fargo , North Dakota 58105 , United States
| |
Collapse
|
27
|
Eble JA, Niland S. The extracellular matrix in tumor progression and metastasis. Clin Exp Metastasis 2019; 36:171-198. [PMID: 30972526 DOI: 10.1007/s10585-019-09966-1] [Citation(s) in RCA: 322] [Impact Index Per Article: 64.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 04/05/2019] [Indexed: 02/06/2023]
Abstract
The extracellular matrix (ECM) constitutes the scaffold of tissues and organs. It is a complex network of extracellular proteins, proteoglycans and glycoproteins, which form supramolecular aggregates, such as fibrils and sheet-like networks. In addition to its biochemical composition, including the covalent intermolecular cross-linkages, the ECM is also characterized by its biophysical parameters, such as topography, molecular density, stiffness/rigidity and tension. Taking these biochemical and biophysical parameters into consideration, the ECM is very versatile and undergoes constant remodeling. This review focusses on this remodeling of the ECM under the influence of a primary solid tumor mass. Within this tumor stroma, not only the cancer cells but also the resident fibroblasts, which differentiate into cancer-associated fibroblasts (CAFs), modify the ECM. Growth factors and chemokines, which are tethered to and released from the ECM, as well as metabolic changes of the cells within the tumor bulk, add to the tumor-supporting tumor microenvironment. Metastasizing cancer cells from a primary tumor mass infiltrate into the ECM, which variably may facilitate cancer cell migration or act as barrier, which has to be proteolytically breached by the infiltrating tumor cell. The biochemical and biophysical properties therefore determine the rates and routes of metastatic dissemination. Moreover, primed by soluble factors of the primary tumor, the ECM of distant organs may be remodeled in a way to facilitate the engraftment of metastasizing cancer cells. Such premetastatic niches are responsible for the organotropic preference of certain cancer entities to colonize at certain sites in distant organs and to establish a metastasis. Translational application of our knowledge about the cancer-primed ECM is sparse with respect to therapeutic approaches, whereas tumor-induced ECM alterations such as increased tissue stiffness and desmoplasia, as well as breaching the basement membrane are hallmark of malignancy and diagnostically and histologically harnessed.
Collapse
Affiliation(s)
- Johannes A Eble
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Waldeyerstr. 15, 48149, Münster, Germany.
| | - Stephan Niland
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Waldeyerstr. 15, 48149, Münster, Germany
| |
Collapse
|
28
|
Ali M, Kowkuntla S, Delloro DJ, Galambos C, Hathi D, Janz S, Shokeen M, Tripathi C, Xu H, Yuk J, Zhan F, Tomasson MH, Bates ML. Chronic intermittent hypoxia enhances disease progression in myeloma-resistant mice. Am J Physiol Regul Integr Comp Physiol 2019; 316:R678-R686. [PMID: 30892915 DOI: 10.1152/ajpregu.00388.2018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Obesity is the only known modifiable risk factor for multiple myeloma (MM), an incurable cancer of bone marrow plasma cells. The mechanism linking the two is unknown. Obesity is associated with an increased risk of sleep apnea, which results in chronic intermittent hypoxia (CIH), and drives solid tumor aggressiveness. Given the link between CIH and solid tumor progression, we tested the hypothesis that CIH drives the proliferation of MM cells in culture and their engraftment and progression in vivo. Malignant mouse 5TGM1 cells were cultured in CIH, static hypoxia, or normoxia as a control in custom, gas-permeable plates. Typically MM-resistant C57BL/6J mice were exposed to 10 h/day CIH (AHI = 12/h), static hypoxia, or normoxia for 7 days, followed by injection with 5TGM1 cells and an additional 28 days of exposure. CIH and static hypoxia slowed the growth of 5TGM1 cells in culture. CIH-exposed mice developed significantly more MM than controls (67 vs. 12%, P = 0.005), evidenced by hindlimb paralysis, gammopathy, bone lesions, and bone tumor formation. Static hypoxia was not a significant driver of MM progression and did not reduce survival (P = 0.117). Interestingly, 5TGM1 cells preferentially engrafted in the bone marrow and promoted terminal disease in CIH mice, despite a lower tumor burden, compared with the positive controls. These first experiments in the context of hematological cancer demonstrate that CIH promotes MM through mechanisms distinct from solid tumors and that sleep apnea may be a targetable risk factor in patients with or at risk for blood cancer.
Collapse
Affiliation(s)
- Mahmoud Ali
- Department of Internal Medicine, Hematology and Oncology Division, University of Iowa , Iowa City, Iowa
| | - Sandeep Kowkuntla
- Department of Health and Human Physiology, University of Iowa , Iowa City, Iowa
| | - Derick J Delloro
- Department of Health and Human Physiology, University of Iowa , Iowa City, Iowa
| | - Csaba Galambos
- Department of Pathology and Laboratory Medicine, University of Colorado School of Medicine and Children's Hospital Colorado , Aurora, Colorado
| | - Deep Hathi
- Department of Radiology, Washington University , St. Louis, Missouri
| | - Siegfried Janz
- Department of Pathology, University of Iowa , Iowa City, Iowa
| | - Monica Shokeen
- Department of Radiology, Washington University , St. Louis, Missouri
| | - Chakrapani Tripathi
- Department of Internal Medicine, Hematology and Oncology Division, University of Iowa , Iowa City, Iowa
| | - Hongwei Xu
- Department of Internal Medicine, Hematology and Oncology Division, University of Iowa , Iowa City, Iowa
| | - Jisung Yuk
- Department of Health and Human Physiology, University of Iowa , Iowa City, Iowa
| | - Fenghuang Zhan
- Department of Internal Medicine, Hematology and Oncology Division, University of Iowa , Iowa City, Iowa
| | - Michael H Tomasson
- Department of Internal Medicine, Hematology and Oncology Division, University of Iowa , Iowa City, Iowa
| | - Melissa L Bates
- Department of Internal Medicine, Hematology and Oncology Division, University of Iowa , Iowa City, Iowa.,Stead Family Department of Pediatrics, University of Iowa , Iowa City, Iowa
| |
Collapse
|
29
|
Abstract
INTRODUCTION Small cell lung cancer (SCLC) is a highly malignant disease with a dismal prognosis that is currently being tested for theclinical activity of checkpoint inhibitors. SCLC is associated with smoking and exhibits a high mutational burden. However, low expression of PD-L1 and MHC antigens, as well low levels of immune cell infiltration and rapid tumor progress seems to limit the efficacy of anticancer immunity. Nevertheless, long-term survival was reported from studies using anti-PD-1/PD-L1 and CTLA-4 agents. AREAS COVERED Data of clinical trials of checkpoint inhibitors in SCLC show lower success rates compared to NSCLC. The mechanisms of resistance to immunotherapy are discussed for their relevance to SCLC patients. EXPERT OPINION Although some factors, such as a high mutation rate, favor immunotherapy for SCLC patients, downregulation of MHC class I, low expression of PD-L1, poor tumor infiltration by effector T cells, presence of myeloid-derived suppressor cells as well as regulatory T lymphocytes counteract the immune system activation by checkpoint inhibitors. Furthermore, this tumor develops avascular regions which have immunosuppressive effects and restrict access of lymphocytes and antibodies. In conclusion, immunotherapy in SCLC is effective in highly selected patients with good performance status and special and unknown preconditions contributing to long-lasting responses.
Collapse
Affiliation(s)
- Gerhard Hamilton
- a Department of Surgery , Medical University of Vienna , Vienna , Austria
| | - Barbara Rath
- a Department of Surgery , Medical University of Vienna , Vienna , Austria
| |
Collapse
|
30
|
Affiliation(s)
- Willis K Samson
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine , St. Louis, Missouri
| |
Collapse
|
31
|
Schito L. Hypoxia-Dependent Angiogenesis and Lymphangiogenesis in Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1136:71-85. [PMID: 31201717 DOI: 10.1007/978-3-030-12734-3_5] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hypoxia (low O2) is a ubiquitous feature of solid cancers, arising as a mismatch between cellular O2 supply and consumption. Hypoxia is associated to metastatic disease and mortality owing to its ability to stimulate the formation of blood (angiogenesis) and lymphatic vessels (lymphangiogenesis), thereby allowing cancer cells to escape the unfavorable tumor microenvironment and disseminate into secondary sites. This review outlines molecular mechanisms by which intratumoral hypoxia regulates the expression of motogenic and mitogenic factors that induce angiogenesis and lymphangiogenesis, whilst discussing their implications for metastatic cancers.
Collapse
Affiliation(s)
- Luana Schito
- Biological Sciences Platform, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
32
|
Samson WK. New Investigator Review Awardees 2018. Am J Physiol Regul Integr Comp Physiol 2018; 315:R1061. [PMID: 30207753 DOI: 10.1152/ajpregu.00273.2018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Willis K Samson
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine , St. Louis, Missouri
| |
Collapse
|
33
|
Lin S, Zhu B, Huang G, Zeng Q, Wang C. Microvesicles derived from human bone marrow mesenchymal stem cells promote U2OS cell growth under hypoxia: the role of PI3K/AKT and HIF-1α. Hum Cell 2018; 32:64-74. [PMID: 30506278 DOI: 10.1007/s13577-018-0224-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/18/2018] [Indexed: 02/05/2023]
Abstract
Studies have demonstrated that mesenchymal stem cells (MSCs) can promote tumor growth, and MSC microvesicles (MVs) are very important in the tumor microenvironment and information transfer between cells during tumorigenesis and development. However, the potential effects and mechanisms of MSC-MVs on tumor growth are still controversial. Here in this study, we investigated the roles and effects of human bone marrow MSC-MVs (hBMSC-MVs) on human osteosarcoma (U2OS) cell growth under hypoxia in vitro and in vivo. BMSC-MVs were harvested and purified by ultracentrifugation. U2OS cells were treated with different concentrations of hBMSC-MVs under hypoxia. Cell viability and migration was measured by MTT test, transwell invasion assay and scratch migration assay. The expression of the signaling molecules of AKT, VEGF, GLUT1 and Bax, cleaved-caspase3 in U2OS cells cultured with MVs under hypoxia was determined by western blot. U2OS/siHIF-1α or U2OS/NC cells mixed with/without MVs were subcutaneously injected into nude mice; the tumor size and weight were detected. We found that hBMSC-MVs promoted U2OS cell proliferation and migration under hypoxia in vitro, and that was partially associated with the PI3K/AKT and HIF-1α pathways. MVs co-injected with U2OS cells promoted tumor growth in a mouse xenograft model. siHIF-1α transfection reversed these changes to some extent. The function of hBMSC-MVs on U2OS cell progression and tumor growth was associated with PI3K/AKT and HIF-1α pathway under hypoxia. These findings support a new mechanism suggesting the contribution of MSC-MVs to tumor growth.
Collapse
Affiliation(s)
- Shanshan Lin
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bo Zhu
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Guozhi Huang
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Qing Zeng
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Chuhuai Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
| |
Collapse
|