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Yu Q, Tang R, Mo W, Zhao L, Li L. Baicalein Enhances Radiosensitivity in Colorectal Cancer via JAK2/STAT3 Pathway Inhibition. Chem Biol Drug Des 2024; 104:e14611. [PMID: 39152534 DOI: 10.1111/cbdd.14611] [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: 03/31/2024] [Revised: 07/21/2024] [Accepted: 08/05/2024] [Indexed: 08/19/2024]
Abstract
Radiation resistance is a crucial factor influencing therapeutic outcomes in colorectal cancer (CRC). Baicalein (BE), primarily derived from Scutellaria baicalensis, has demonstrated anti-CRC properties. However, the impact of BE on the radiosensitivity of CRC remains unclear. This study aimed to evaluate the radiosensitization effects of BE and elucidate its mechanism in CRC radiotherapy. We established an in vitro radioresistant cell model (CT26-R) using parental CRC cells (CT26) subjected to ionizing radiation (IR). CT26-R cells were pretreated with or without BE, followed by transfection with pcDNA-NC and pcDNA-JAK2. The proliferation of CT26-R cells treated with BE and IR was assessed using a colony formation assay. A CRC animal model was developed in BALB/c mice via CT26-R cell transplantation. The radiosensitizing effect of BE on CRC was evaluated in vivo. TUNEL assay was conducted to detect apoptosis in tumor tissue. The expression levels of p-STAT3, JAK2, PD-L1, and SOCS3 in vitro and in vivo were measured by western blotting. Our results demonstrated that BE significantly increased radiosensitivity in vitro and in vivo and enhanced apoptosis in tumor tissues. Additionally, BE significantly downregulated the expression of p-STAT3, JAK2, and PD-L1, and significantly upregulated SOCS3 expression. These in vivo effects were reversed by pcDNA-JAK2. In summary, our data suggest that BE enhances CRC radiosensitivity by inhibiting the JAK2/STAT3 pathway.
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Affiliation(s)
- Qingqing Yu
- Department of Radiation Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang, China
| | - Rongjun Tang
- Hyperthermia Center, Hangzhou Cancer Hospital, Hangzhou, Zhejiang, China
| | - Weixing Mo
- Department of Radiology, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Linfang Zhao
- Department of Ultrasonography, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Lingdi Li
- Department of Medical Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang, China
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Kazakova AN, Lukina MM, Anufrieva KS, Bekbaeva IV, Ivanova OM, Shnaider PV, Slonov A, Arapidi GP, Shender VO. Exploring the diversity of cancer-associated fibroblasts: insights into mechanisms of drug resistance. Front Cell Dev Biol 2024; 12:1403122. [PMID: 38818409 PMCID: PMC11137237 DOI: 10.3389/fcell.2024.1403122] [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: 03/18/2024] [Accepted: 04/22/2024] [Indexed: 06/01/2024] Open
Abstract
Introduction: Among the various stromal cell types within the tumor microenvironment, cancer-associated fibroblasts (CAFs) emerge as the predominant constituent, exhibiting a diverse array of oncogenic functions not intrinsic to normal fibroblasts. Their involvement spans across all stages of tumorigenesis, encompassing initiation, progression, and metastasis. Current understanding posits the coexistence of distinct subpopulations of CAFs within the tumor microenvironment across a spectrum of solid tumors, showcasing both pro- and antitumor activities. Recent advancements in single-cell transcriptomics have revolutionized our ability to meticulously dissect the heterogeneity inherent to CAF populations. Furthermore, accumulating evidence underscores the pivotal role of CAFs in conferring therapeutic resistance to tumors against various drug modalities. Consequently, efforts are underway to develop pharmacological agents specifically targeting CAFs. Methods: This review embarks on a comprehensive analysis, consolidating data from 36 independent single-cell RNA sequencing investigations spanning 17 distinct human malignant tumor types. Results: Our exploration centers on elucidating CAF population markers, discerning their prognostic relevance, delineating their functional contributions, and elucidating the underlying mechanisms orchestrating chemoresistance. Discussion: Finally, we deliberate on the therapeutic potential of harnessing CAFs as promising targets for intervention strategies in clinical oncology.
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Affiliation(s)
- Anastasia N. Kazakova
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Maria M. Lukina
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Institute of Experimental Oncology and Biomedical Technologies, Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - Ksenia S. Anufrieva
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Irina V. Bekbaeva
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia
| | - Olga M. Ivanova
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
| | - Polina V. Shnaider
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Andrey Slonov
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Georgij P. Arapidi
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Victoria O. Shender
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
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Liao J, Qing X, Li X, Gan Y, Wang R, Han S, Li W, Song W. TRAF4 regulates ubiquitination-modulated survivin turnover and confers radioresistance. Int J Biol Sci 2024; 20:182-199. [PMID: 38164179 PMCID: PMC10750280 DOI: 10.7150/ijbs.87180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/09/2023] [Indexed: 01/03/2024] Open
Abstract
Nasopharyngeal carcinoma (NPC) is the most common cancer originating in the nasopharynx. Despite continuous improvement in treatment strategies, recurrence or persistence of cancer after radiotherapy is still inevitable, highlighting the need to identify therapeutic resistance factors and develop effective methods for NPC treatment. Herein, we found that TRAF4 is overexpressed in NPC cells and tissues. Knockdown TRAF4 significantly increased the radiosensitivity of NPC cells, possibly by inhibiting the Akt/Wee1/CDK1 axis, thereby suppressing survivin phosphorylation and promoting its degradation by FBXL7. TRAF4 is positively correlated with p-Akt and survivin in NPC tissues. High protein levels of TRAF4 were observed in acquired radioresistant NPC cells, and knockdown of TRAF4 overcomes radioresistant in vitro and the xenograft mouse model. Altogether, our study highlights the TRAF4-survivin axis as a potential therapeutic target for radiosensitization in NPC.
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Affiliation(s)
- Jinzhuang Liao
- Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Xiang Qing
- Department of Otolaryngology Head and Neck Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Xiaoying Li
- Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Yu Gan
- Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Ruirui Wang
- Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Shuangze Han
- Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Wei Li
- Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Wei Song
- Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, 410005, China
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Lin Y, Wang W, Wang Y, Fu K. MiR -223 -3p increases resistance of colorectal cancer cells to 5 -fluorouracil via targeting SORBS1. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2023; 48:356-368. [PMID: 37164919 PMCID: PMC10930083 DOI: 10.11817/j.issn.1672-7347.2023.220345] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
OBJECTIVES 5-Fluorouracil (5-FU) is the first-line drug for treating colorectal cancer (CRC), and the resistance of tumor cells to 5-FU is the main cause of chemotherapeutic failure. However, the resistant mechanism is still unclear. This study aims to explore the tumor suppressor genes involved in 5-FU resistance in CRC, and to find the microRNA (miRNA) that regulates these genes. METHODS CRC data sets GSE28702 and GSE69657 were downloaded from Gene Expression Omnibus (GEO) database, and gene expression profiles of patients in the FOLFOX chemotherapeutic response group and the non-response group were analyzed, and differential expression genes were identified between the 2 groups. Target gene was then selected. Online bioinformatics databases TargetScan, miRwalk, and miRDB were used to predict miRNA targeting the interested gene sorbin and SH3 domain containing 1 (SORBS1). siSORBS1, HA-SORBS1, miR-223-3p mimic, anti-miR-223-3p, and their corresponding negative controls (siNC, HA, miR-NC, and anti-miR-NC) were transfected into CRC cell lines of HCT116 and SW620 by transient transfection technique, respectively. Co-transfection was done with miRNA and plasmid (miR-NC+HA, miR-223-3p mimic+HA, or miR-223-3p mimic+HA-SORBS1) or anti-miRNA and siRNA (anti-miR-NC+siNC, anti-miR-223-3p+siNC, or anti-miR-223-3p+siSORBS1) in HCT116 cells. Real-time reverse transcription PCR (real-time RT-PCR) and/or Western blotting were used to detect the expression levels of SORBS1 and miR-223-3p in cells. After transfection, the cells were treated with different concentrations of 5-FU, and the cell viability was detected by methyl thiazolyl tetrazolium (MTT) method. The targeting relationship between miR-223-3p and SORBS1 was comfirmed by dual luciferase reporter gene assay. RESULTS There were 409 and 528 highly expressed genes in the FOLFOX chemotherapeutic response group of GSE69657 and GSE28702, respectively. There were 22 overlapping genes in the response group, among which exist 3 tumor suppressor genes might be involved in chemosensitivity in CRC, and SORBS1 was selected as the target gene for further study. Three online bioinformatics databases predicted miRNAs targeting SORBS1 and obtained an intersection molecule miR-223-3p. After treatment with 5-FU (25 µmol/L) for 12-36 h, the levels of miR-223-3p in HCT116 and SW620 cells were significantly down-regulated (all P<0.05). After transfection with siSORBS1 or miR-223-3p mimic, the expression levels of SORBS1 in HCT116 and SW620 cells were down-regulated, and the cell viability was increased (all P<0.05). After transfection with HA-SORBS1 or anti-miR-223-3p, the expression levels of SORBS1 in HCT116 and SW620 cells were up-regulated, and the cell viability was decreased (all P<0.05). The result of dual luciferase reporter gene assay showed that the luciferase activity of cells co-transfected with SORBS1 3'-UTR wild plasmid and miR-223-3p mimic was significantly lower than that of the 3'-UTR wild plasmid and miR-NC cells (P<0.05). Compared with co-transfection with miR-223-3p mimic and HA, the cell viability of cells co-transfected with miR-223-3p mimic and HA-SORBS1 was decreased significantly (P<0.01). Compared with the co-transfected anti-miR-223-3p and siNC, the cell viability of the co-transfected anti-miR-223-3p and siSORBS1 was significantly increased (P<0.05). CONCLUSIONS MiR-223-3p increases 5-FU resistance in CRC cells by targeting SORBS1,and miR-223-3p is expected to become a new target for clinical treatment of CRC.
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Affiliation(s)
- Yilin Lin
- Institute of Molecular Precision Medicine, Xiangya Hospital, Central South University, Changsha 410008.
| | - Wenbo Wang
- Institute of Molecular Precision Medicine, Xiangya Hospital, Central South University, Changsha 410008
| | - Ya Wang
- Institute of Molecular Precision Medicine, Xiangya Hospital, Central South University, Changsha 410008
| | - Kai Fu
- Institute of Molecular Precision Medicine, Xiangya Hospital, Central South University, Changsha 410008.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008, China.
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α-Hederin Saponin Augments the Chemopreventive Effect of Cisplatin against Ehrlich Tumors and Bioinformatic Approach Identifying the Role of SDF1/CXCR4/p-AKT-1/NFκB Signaling. Pharmaceuticals (Basel) 2023; 16:ph16030405. [PMID: 36986504 PMCID: PMC10056433 DOI: 10.3390/ph16030405] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 03/10/2023] Open
Abstract
Stromal cell-derived factor-1 (SDF1) and its C-X-C chemokine receptor type 4 receptor (CXCR4) are significant mediators for cancer cells’ proliferation, and we studied their expression in Ehrlich solid tumors (ESTs) grown in mice. α-Hederin is a pentacyclic triterpenoid saponin found in Hedera or Nigella species with biological activity that involves suppression of growth of breast cancer cell lines. The aim of this study was to explore the chemopreventive activity of α-hederin with/without cisplatin; this was achieved by measuring the reduction in tumor masses and the downregulation in SDF1/CXCR4/pAKT signaling proteins and nuclear factor kappa B (NFκB). Ehrlich carcinoma cells were injected in four groups of Swiss albino female mice (Group1: EST control group, Group2: EST + α-hederin group, Group3: EST + cisplatin group, and Group4: EST+α-hederin/cisplatin treated group). Tumors were dissected and weighed, one EST was processed for histopathological staining with hematoxylin and eosin (HE), and the second MC was frozen and processed for estimation of signaling proteins. Computational analysis for these target proteins interactions showed direct-ordered interactions. The dissected solid tumors revealed decreases in tumor masses (~21%) and diminished viable tumor regions with significant necrotic surrounds, particularly with the combination regimens. Immunohistochemistry showed reductions (~50%) in intratumoral NFκβ in the mouse group that received the combination therapy. The combination treatment lowered the SDF1/CXCR4/p-AKT proteins in ESTs compared to the control. In conclusion, α-hederin augmented the chemotherapeutic potential of cisplatin against ESTs; this effect was at least partly mediated through suppressing the chemokine SDF1/CXCR4/p-AKT/NFκB signaling. Further studies are recommended to verify the chemotherapeutic potential of α-hederin in other breast cancer models.
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Tessmann JW, Rocha MR, Morgado-Díaz JA. Mechanisms of radioresistance and the underlying signaling pathways in colorectal cancer cells. J Cell Biochem 2023; 124:31-45. [PMID: 36565460 DOI: 10.1002/jcb.30361] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/23/2022] [Accepted: 12/13/2022] [Indexed: 12/25/2022]
Abstract
Radiotherapy is one of the most common modalities for the treatment of a wide range of tumors, including colorectal cancer (CRC); however, radioresistance of cancer cells remains a major limitation for this treatment. Following radiotherapy, the activities of various cellular mechanisms and cell signaling pathways are altered, resulting in the development of radioresistance, which leads to therapeutic failure and poor prognosis in patients with cancer. Furthermore, even though several inhibitors have been developed to target tumor resistance, these molecules can induce side effects in nontumor cells due to low specificity and efficiency. However, the role of these mechanisms in CRC has not been extensively studied. This review discusses recent studies regarding the relationship between radioresistance and the alterations in a series of cellular mechanisms and cell signaling pathways that lead to therapeutic failure and tumor recurrence. Our review also presents recent advances in the in vitro/in vivo study models aimed at investigating the radioresistance mechanism in CRC. Furthermore, it provides a relevant biochemical basis in theory, which can be useful to improve radiotherapy sensitivity and prolong patient survival.
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Affiliation(s)
- Josiane W Tessmann
- Cellular and Molecular Oncobiology Program, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Murilo R Rocha
- Cellular and Molecular Oncobiology Program, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Jose A Morgado-Díaz
- Cellular and Molecular Oncobiology Program, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil
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Roberto M, Arrivi G, Di Civita MA, Barchiesi G, Pilozzi E, Marchetti P, Santini D, Mazzuca F, Tomao S. The role of CXCL12 axis in pancreatic cancer: New biomarkers and potential targets. Front Oncol 2023; 13:1154581. [PMID: 37035150 PMCID: PMC10076769 DOI: 10.3389/fonc.2023.1154581] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/09/2023] [Indexed: 04/11/2023] Open
Abstract
Introduction Chemokines are small, secreted peptides involved in the mediation of the immune cell recruitment. Chemokines have been implicated in several diseases including autoimmune diseases, viral infections and also played a critical role in the genesis and development of several malignant tumors. CXCL12 is a homeostatic CXC chemokine involved in the process of proliferation, and tumor spread. Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive tumors, that is still lacking effective therapies and with a dramatically poor prognosis. Method We conducted a scientific literature search on Pubmed and Google Scholar including retrospective, prospective studies and reviews focused on the current research elucidating the emerging role of CXCL12 and its receptors CXCR4 - CXCR7 in the pathogenesis of pancreatic cancer. Results Considering the mechanism of immunomodulation of the CXCL12-CXCR4-CXCR7 axis, as well as the potential interaction with the microenvironment in the PDAC, several combined therapeutic approaches have been studied and developed, to overcome the "cold" immunological setting of PDAC, like combining CXCL12 axis inhibitors with anti PD-1/PDL1 drugs. Conclusion Understanding the role of this chemokine's axis in disease initiation and progression may provide the basis for developing new potential biomarkers as well as therapeutic targets for related pancreatic cancers.
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Affiliation(s)
- Michela Roberto
- Oncology Unit (UOC) Oncologia A, Department of Radiological, Oncological and Anathomo-patological Science, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Giulia Arrivi
- Oncology Unit, Department of Clinical and Molecular Medicine, Sant’ Andrea University Hospital, Sapienza University of Rome, Rome, Italy
| | - Mattia Alberto Di Civita
- Oncology Unit (UOC) Oncologia A, Department of Radiological, Oncological and Anathomo-patological Science, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
- *Correspondence: Mattia Alberto Di Civita,
| | - Giacomo Barchiesi
- Oncology Unit (UOC) Oncologia A, Department of Radiological, Oncological and Anathomo-patological Science, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Emanuela Pilozzi
- Department of Clinical and Molecular Medicine, Anatomia Patologica Unit, Sant’ Andrea University Hospital, Sapienza University of Rome, Rome, Italy
| | - Paolo Marchetti
- Scientific Direction, Istituto Dermopatico dell’Immacolata (IDI-IRCCS), Rome, Italy
| | - Daniele Santini
- Oncology Unit (UOC) Oncologia A, Department of Radiological, Oncological and Anathomo-patological Science, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Federica Mazzuca
- Oncology Unit, Department of Clinical and Molecular Medicine, Sant’ Andrea University Hospital, Sapienza University of Rome, Rome, Italy
| | - Silverio Tomao
- Oncology Unit (UOC) Oncologia A, Department of Radiological, Oncological and Anathomo-patological Science, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
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Wang Y, Liang H, Zheng J. Exosomal microRNAs mediating crosstalk between cancer cells and cancer-associated fibroblasts in the tumor microenvironment. Pathol Res Pract 2022; 239:154159. [DOI: 10.1016/j.prp.2022.154159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/17/2022] [Accepted: 10/05/2022] [Indexed: 11/26/2022]
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Kato T, Matsuo Y, Ueda G, Murase H, Aoyama Y, Omi K, Hayashi Y, Imafuji H, Saito K, Morimoto M, Ogawa R, Takahashi H, Takiguchi S. Enhanced CXCL12/CXCR4 signaling increases tumor progression in radiation‑resistant pancreatic cancer. Oncol Rep 2022; 47:68. [PMID: 35119076 PMCID: PMC8848476 DOI: 10.3892/or.2022.8279] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/20/2022] [Indexed: 11/17/2022] Open
Abstract
Pancreatic cancer (PaCa) exhibits one of the poorest prognoses among all gastrointestinal cancers due to the rapid development of treatment resistance, which renders chemotherapy and radiotherapy no longer effective. However, the mechanisms through which PaCa becomes resistant to radiotherapy are unknown. Here, we established radiation‑resistant PaCa cell lines to investigate the factors involved in radiation resistance. The role of the C‑X‑C motif chemokine ligand 12 (CXCL12)/C‑X‑C chemokine receptor type 4 (CXCR4) axis in radiation resistance in PaCa and the effects of a CXCR4 antagonist on radiation‑resistant PaCa cell lines were investigated. As confirmed by immunofluorescence staining, reverse transcription quantitative polymerase chain reaction, and western blotting, the expression of CXCR4 was higher in radiation‑resistant PaCa cell lines than that noted in normal PaCa cell lines. The invasion ability of radiation‑resistant PaCa cell lines was greater than that of normal cell lines and was enhanced by CXCL12 treatment and coculture with fibroblasts; this enhanced invasion ability was suppressed by the CXCR4 antagonist AMD070. Irradiation after treatment with the CXCR4 antagonist suppressed the colonization of radiation‑resistant PaCa cell lines. In conclusion, the CXCL12/CXCR4 axis may be involved in the radiation resistance of PaCa. These findings may facilitate the development of novel treatments for PaCa.
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Affiliation(s)
- Tomokatsu Kato
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yoichi Matsuo
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Goro Ueda
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Hiromichi Murase
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yoshinaga Aoyama
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Kan Omi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yuichi Hayashi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Hiroyuki Imafuji
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Kenta Saito
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Mamoru Morimoto
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Ryo Ogawa
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Hiroki Takahashi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Shuji Takiguchi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
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Wang G, Wang F, Meng Z, Wang N, Zhou C, Zhang J, Zhao L, Wang G, Shan B. Uncovering potential genes in colorectal cancer based on integrated and DNA methylation analysis in the gene expression omnibus database. BMC Cancer 2022; 22:138. [PMID: 35114976 PMCID: PMC8815138 DOI: 10.1186/s12885-022-09185-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 01/10/2022] [Indexed: 12/19/2022] Open
Abstract
Background Colorectal cancer (CRC) is major cancer-related death. The aim of this study was to identify differentially expressed and differentially methylated genes, contributing to explore the molecular mechanism of CRC. Methods Firstly, the data of gene transcriptome and genome-wide DNA methylation expression were downloaded from the Gene Expression Omnibus database. Secondly, functional analysis of differentially expressed and differentially methylated genes was performed, followed by protein-protein interaction (PPI) analysis. Thirdly, the Cancer Genome Atlas (TCGA) dataset and in vitro experiment was used to validate the expression of selected differentially expressed and differentially methylated genes. Finally, diagnosis and prognosis analysis of selected differentially expressed and differentially methylated genes was performed. Results Up to 1958 differentially expressed (1025 up-regulated and 993 down-regulated) genes and 858 differentially methylated (800 hypermethylated and 58 hypomethylated) genes were identified. Interestingly, some genes, such as GFRA2 and MDFI, were differentially expressed-methylated genes. Purine metabolism (involved IMPDH1), cell adhesion molecules and PI3K-Akt signaling pathway were significantly enriched signaling pathways. GFRA2, FOXQ1, CDH3, CLDN1, SCGN, BEST4, CXCL12, CA7, SHMT2, TRIP13, MDFI and IMPDH1 had a diagnostic value for CRC. In addition, BEST4, SHMT2 and TRIP13 were significantly associated with patients’ survival. Conclusions The identified altered genes may be involved in tumorigenesis of CRC. In addition, BEST4, SHMT2 and TRIP13 may be considered as diagnosis and prognostic biomarkers for CRC patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09185-0.
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Affiliation(s)
- Guanglin Wang
- The Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Feifei Wang
- The Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zesong Meng
- The Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Na Wang
- Institute of Tumor, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Chaoxi Zhou
- The Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Juan Zhang
- The Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lianmei Zhao
- Scientific Research Center, The Fourth Hospital of Hebei Medical University, No. 12, Jiankang Road, Chang'an District, Shijiazhuang, 050010, Hebei Province, China
| | - Guiying Wang
- The Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.,Department of General Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Baoen Shan
- Scientific Research Center, The Fourth Hospital of Hebei Medical University, No. 12, Jiankang Road, Chang'an District, Shijiazhuang, 050010, Hebei Province, China.
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Pan-Cancer Analysis of Prognostic and Immune Infiltrates for CXCs. Cancers (Basel) 2021; 13:cancers13164153. [PMID: 34439306 PMCID: PMC8392715 DOI: 10.3390/cancers13164153] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 11/17/2022] Open
Abstract
Simple Summary CXCs are important genes that regulate inflammation and tumor metastasis. While there are many studies with a focus on individual CXCs, few present a pan-cancer analysis of the whole CXC family. Our results indicate that CXCs are a potential therapeutic target in a variety of tumors and a potential prognostic marker that could improve the survival of cancer patients and the accuracy of prognosis. Meanwhile, we found that CXCs may be involved in diseases caused by intestinal flora. Abstract Background: CXCs are important genes that regulate inflammation and tumor metastasis. However, the expression level, prognosis value, and immune infiltration of CXCs in cancers are not clear. Methods: Multiple online datasets were used to analyze the expression, prognosis, and immune regulation of CXCs in this study. Network analysis of the Amadis database and GEO dataset was used to analyze the regulation of intestinal flora on the expression of CXCs. A mouse model was used to verify the fact that intestinal bacterial dysregulation can affect the expression of CXCs. Results: In the three cancers, multiple datasets verified the fact that the mRNA expression of this family was significantly different; the mRNA levels of CXCL3, 8, 9, 10, 14, and 17 were significantly correlated with the prognosis of three cancers. CXCs were correlated with six types of immuno-infiltrating cells in three cancers. Immunohistochemistry of clinical samples confirmed that the expression of CXCL8 and 10 was higher in three cancer tissues. Animal experiments have shown that intestinal flora dysregulation can affect CXCL8 and 10 expressions. Conclusion: Our results further elucidate the function of CXCs in cancers and provide new insights into the prognosis and immune infiltration of breast, colon, and pancreatic cancers, and they suggest that intestinal flora may influence disease progression through CXCs.
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12
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Wang N, Wang S, Wang X, Zheng Y, Yang B, Zhang J, Pan B, Gao J, Wang Z. Research trends in pharmacological modulation of tumor-associated macrophages. Clin Transl Med 2021; 11:e288. [PMID: 33463063 PMCID: PMC7805405 DOI: 10.1002/ctm2.288] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 12/27/2020] [Accepted: 12/29/2020] [Indexed: 02/06/2023] Open
Abstract
As one of the most abundant immune cell populations in the tumor microenvironment (TME), tumor-associated macrophages (TAMs) play important roles in multiple solid malignancies, including breast cancer, prostate cancer, liver cancer, lung cancer, ovarian cancer, gastric cancer, pancreatic cancer, and colorectal cancer. TAMs could contribute to carcinogenesis, neoangiogenesis, immune-suppressive TME remodeling, cancer chemoresistance, recurrence, and metastasis. Therefore, reprogramming of the immune-suppressive TAMs by pharmacological approaches has attracted considerable research attention in recent years. In this review, the promising pharmaceutical targets, as well as the existing modulatory strategies of TAMs were summarized. The chemokine-chemokine receptor signaling, tyrosine kinase receptor signaling, metabolic signaling, and exosomal signaling have been highlighted in determining the biological functions of TAMs. Besides, both preclinical research and clinical trials have suggested the chemokine-chemokine receptor blockers, tyrosine kinase inhibitors, bisphosphonates, as well as the exosomal or nanoparticle-based targeting delivery systems as the promising pharmacological approaches for TAMs deletion or reprogramming. Lastly, the combined therapies of TAMs-targeting strategies with traditional treatments or immunotherapies as well as the exosome-like nanovesicles for cancer therapy are prospected.
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Affiliation(s)
- Neng Wang
- The Research Center for Integrative MedicineSchool of Basic Medical SciencesGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
- The Research Center of Integrative Cancer MedicineDiscipline of Integrated Chinese and Western MedicineThe Second Clinical College of Guangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong‐Hong Kong‐Macau Joint Lab on Chinese Medicine and Immune Disease ResearchGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
| | - Shengqi Wang
- The Research Center of Integrative Cancer MedicineDiscipline of Integrated Chinese and Western MedicineThe Second Clinical College of Guangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong‐Hong Kong‐Macau Joint Lab on Chinese Medicine and Immune Disease ResearchGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine SyndromeGuangdong Provincial Hospital of Chinese MedicineGuangdong Provincial Academy of Chinese Medical SciencesGuangzhouGuangdongChina
| | - Xuan Wang
- The Research Center of Integrative Cancer MedicineDiscipline of Integrated Chinese and Western MedicineThe Second Clinical College of Guangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong‐Hong Kong‐Macau Joint Lab on Chinese Medicine and Immune Disease ResearchGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine SyndromeGuangdong Provincial Hospital of Chinese MedicineGuangdong Provincial Academy of Chinese Medical SciencesGuangzhouGuangdongChina
| | - Yifeng Zheng
- The Research Center of Integrative Cancer MedicineDiscipline of Integrated Chinese and Western MedicineThe Second Clinical College of Guangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong‐Hong Kong‐Macau Joint Lab on Chinese Medicine and Immune Disease ResearchGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine SyndromeGuangdong Provincial Hospital of Chinese MedicineGuangdong Provincial Academy of Chinese Medical SciencesGuangzhouGuangdongChina
| | - Bowen Yang
- The Research Center of Integrative Cancer MedicineDiscipline of Integrated Chinese and Western MedicineThe Second Clinical College of Guangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong‐Hong Kong‐Macau Joint Lab on Chinese Medicine and Immune Disease ResearchGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine SyndromeGuangdong Provincial Hospital of Chinese MedicineGuangdong Provincial Academy of Chinese Medical SciencesGuangzhouGuangdongChina
| | - Juping Zhang
- The Research Center of Integrative Cancer MedicineDiscipline of Integrated Chinese and Western MedicineThe Second Clinical College of Guangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong‐Hong Kong‐Macau Joint Lab on Chinese Medicine and Immune Disease ResearchGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine SyndromeGuangdong Provincial Hospital of Chinese MedicineGuangdong Provincial Academy of Chinese Medical SciencesGuangzhouGuangdongChina
| | - Bo Pan
- The Research Center of Integrative Cancer MedicineDiscipline of Integrated Chinese and Western MedicineThe Second Clinical College of Guangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong‐Hong Kong‐Macau Joint Lab on Chinese Medicine and Immune Disease ResearchGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine SyndromeGuangdong Provincial Hospital of Chinese MedicineGuangdong Provincial Academy of Chinese Medical SciencesGuangzhouGuangdongChina
| | - Jianli Gao
- Academy of Traditional Chinese MedicineZhejiang Chinese Medical UniversityHangzhouZhejiangChina
| | - Zhiyu Wang
- The Research Center for Integrative MedicineSchool of Basic Medical SciencesGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
- The Research Center of Integrative Cancer MedicineDiscipline of Integrated Chinese and Western MedicineThe Second Clinical College of Guangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong‐Hong Kong‐Macau Joint Lab on Chinese Medicine and Immune Disease ResearchGuangzhou University of Chinese MedicineGuangzhouGuangdongChina
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine SyndromeGuangdong Provincial Hospital of Chinese MedicineGuangdong Provincial Academy of Chinese Medical SciencesGuangzhouGuangdongChina
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Chen X, Liu J, Zhang Q, Liu B, Cheng Y, Zhang Y, Sun Y, Ge H, Liu Y. Exosome-mediated transfer of miR-93-5p from cancer-associated fibroblasts confer radioresistance in colorectal cancer cells by downregulating FOXA1 and upregulating TGFB3. J Exp Clin Cancer Res 2020; 39:65. [PMID: 32293494 PMCID: PMC7158087 DOI: 10.1186/s13046-019-1507-2] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 12/12/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Cancer-associated fibroblasts (CAFs) have been intensively studied in recent studies with aims of finding more concrete evidence on their mechanism of involvement in tumor progression, which is currently unknown. CAFs can secrete exosomes which are loaded with proteins, lipids and RNAs, all of which affect tumor microenvironment. The present study identified microRNA-93-5p (miR-93-5p) as a novel exosomal cargo responsible for the pro-tumorigenic effects of CAFs on colorectal cancer (CRC). METHODS CAFs and normal fibroblasts (NFs) were isolated from cancerous tissues and matched with paracancerous tissues that had been surgically resected from CRC patients. The interaction among miR-93-5p, forkhead box A1 (FOXA1) and TGFB3 was identified through ChIP and dual luciferase reporter assays. The proliferation and apoptosis of SW480 cells co-cultured with CAFs-derived exosomes under irradiation were evaluated by CCK-8, colony formation, and flow cytometric assays. Tumorigenesis of SW480 cells in nude mice was assessed under the irradiation. RESULTS FOXA1 was found to be associated with reduced radioresistance in CRC cells and was verified as a target of miR-93-5p. CAFs-derived exosomes contained higher miR-93-5p than those from NFs, which augmented SW480 cell proliferation and rescued them from radiation-induced apoptosis. miR-93-5p was identified as a mediator of the exosomal effects of CAFs on SW480 cells, possibly through downregulating FOXA1 and upregulating TGFB3. FOXA1 could bind to the promoter of TGFB3, thereby inhibiting nuclear accumulation of TGFB3. Also, CAFs-derived exosomes containing miR-93-5p increased the tumor growth of SW480 cells in irradiated nude mice. CONCLUSION The present study identifies miR-93-5p as a specific exosomal cargo that rescues CRC cells against radiation-induced apoptosis.
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Affiliation(s)
- Xijuan Chen
- Department of Radiation Oncology, the Affiliated Tumor Hospital of Zhengzhou University, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Junqi Liu
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 People’s Republic of China
| | - Qinglan Zhang
- Department of Hematology, the Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou, 450008 People’s Republic of China
| | - Baoxing Liu
- Department of Chest Surgery, the Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou, 450008 People’s Republic of China
| | - Yan Cheng
- Department of Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 People’s Republic of China
| | - Yonglei Zhang
- Department of General Surgery, the Affiliated Tumor Hospital of Zhengzhou University, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Yanan Sun
- Department of Radiation Oncology, the Affiliated Tumor Hospital of Zhengzhou University, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Hong Ge
- Department of Radiation Oncology, the Affiliated Tumor Hospital of Zhengzhou University, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Yingqiang Liu
- Department of General Surgery, the Affiliated Tumor Hospital of Zhengzhou University, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
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14
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Wang S, Chen C, Li J, Xu X, Chen W, Li F. The CXCL12/CXCR4 axis confers temozolomide resistance to human glioblastoma cells via up-regulation of FOXM1. J Neurol Sci 2020; 414:116837. [PMID: 32334273 DOI: 10.1016/j.jns.2020.116837] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 11/18/2022]
Abstract
Glioblastoma multiforme (GBM) is the most common primary malignancy in the adult central nervous, and is characterized by high aggressiveness and a high mortality rate. The high mortality rate is largely due to the development of drug resistance. Temozolomide (TMZ) resistance is considered to be one of the major reasons responsible for GBM therapy failure. CXCL12/CXCR4 has been demonstrated to be involved in cell proliferation, migration, invasion, angiogenesis, and radioresistance in GBM. However, its role in TMZ resistance in GBM is unknown. In this study, we aimed to evaluate the role of CXCL12/CXCR4 in mediating the TMZ resistance to GBM cells and explore the underlying mechanisms. We found that the CXCL12/CXCR4 axis enhanced TMZ resistance in GBM cells. Further study showed that CXCL12/CXCR4 conferred TMZ resistance and promoted the migration and invasion of GBM cells by up-regulating FOXM1. This resistance was partially reversed by suppressing CXCL12/CXCR4 and FOXM1 silencing. Our study revealed the vital role of CXCL12/CXCR4 in mediating the resistance of GBM cells to TMZ, and suggested that targeting CXCL12/CXCR4 axis may attenuate the resistance to TMZ in GBM.
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Affiliation(s)
- Shengwen Wang
- Department of Neurosurgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Cheng Chen
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Junliang Li
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Xinke Xu
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Wei Chen
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Fangcheng Li
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China.
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15
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Mitchell A, Hasanali SL, Morera DS, Baskar R, Wang X, Khan R, Talukder A, Li CS, Manoharan M, Jordan AR, Wang J, Bollag RJ, Singh N, Albo D, Ghosh S, Lokeshwar VB. A chemokine/chemokine receptor signature potentially predicts clinical outcome in colorectal cancer patients. Cancer Biomark 2020; 26:291-301. [PMID: 31524146 DOI: 10.3233/cbm-190210] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Differential expression of chemokines/chemokine receptors in colorectal cancer (CRC) may enable molecular characterization of patients' tumors for predicting clinical outcome. OBJECTIVE To evaluate the prognostic ability of these molecules in a CRC cohort and the CRC TCGA-dataset. METHODS Chemokine (CXCL-12α, CXCL-12β, IL-17A, CXCL-8, GM-CSF) and chemokine receptor (CXCR-4, CXCR-7) transcripts were analyzed by RT-qPCR in 76 CRC specimens (normal: 27, tumor: 49; clinical cohort). RNA-Seq data was analyzed from the TCGA-dataset (n= 375). Transcript levels were correlated with outcome; analyses: univariate, multivariable, Kaplan-Meier. RESULTS In the clinical cohort, chemokine/chemokine receptor levels were elevated 3-10-fold in CRC specimens (P⩽ 0.004) and were higher in patients who developed metastasis (P= 0.03 - < 0.0001). CXCR-4, CXCR-7, CXCL-12α, CXCL-8, IL-17 and GM-CSF levels predicted metastasis (P⩽ 0.0421) and/or overall survival (OS; P⩽ 0.0373). The CXCR-4+CXCR-7+CXCL-12 marker (CXCR-4/7+CXCL-12 (α/b) signature) stratified patients into risk for metastasis (P= 0.0014; OR, 2.72) and OS (P= 0.0442; OR, 2.7); sensitivity: 86.67%, specificity: 97.06%. In the TCGA-dataset, the CXCR-4/7+CXCL-12 signature predicted metastasis (P= 0.011; OR, 2.72) and OS (P= 0.0006; OR: 4.04). In both datasets, the signature was an independent predictor of clinical outcome. CONCLUSIONS Results of 451 specimens from both cohorts reveal that the CXCR-4/7+CXCL-12 signature potentially predicts outcome in CRC patients and may allow earlier intervention.
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Affiliation(s)
- Andrew Mitchell
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA.,Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Sarrah L Hasanali
- Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA.,Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Daley S Morera
- Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Rohitha Baskar
- Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Xin Wang
- Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Rahil Khan
- Bio-Repository Alliance of Georgia for Oncology at Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Asif Talukder
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Charles S Li
- Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | | | - Andre R Jordan
- Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA.,Sheila and David Fuente Graduate Program in Cancer Biology, Sylvester Comprehensive Cancer Center, University of Miami-Miller School of Medicine, Miami, FL, USA
| | - Jiaojiao Wang
- Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Roni J Bollag
- Bio-Repository Alliance of Georgia for Oncology at Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, USA.,Department of Pathology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Nagendra Singh
- Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Daniel Albo
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Santu Ghosh
- Department of Population Health Sciences, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Vinata B Lokeshwar
- Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
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16
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Singh P, Mohammad KS, Pelus LM. CXCR4 expression in the bone marrow microenvironment is required for hematopoietic stem and progenitor cell maintenance and early hematopoietic regeneration after myeloablation. Stem Cells 2020; 38:849-859. [PMID: 32159901 DOI: 10.1002/stem.3174] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 02/14/2020] [Accepted: 02/28/2020] [Indexed: 11/10/2022]
Abstract
The bone marrow (BM) microenvironment/niche plays a key role in regulating hematopoietic stem and progenitor cell (HSPC) activities; however, mechanisms regulating niche cell function are not well understood. In this study, we show that niche intrinsic expression of the CXCR4 chemokine receptor critically regulates HSPC maintenance during steady state, and promotes early hematopoietic regeneration after myeloablative irradiation. At steady state, chimeric mice with wild-type (WT) HSPC and marrow stroma that lack CXCR4 show decreased HSPC quiescence, and their repopulation capacity was markedly reduced. Mesenchymal stromal cells (MSC) were significantly reduced in the BM of CXCR4 deficient mice, which was accompanied by decreased levels of the HSPC supporting factors stromal cell-derived factor-1 (SDF-1) and stem cell factor (SCF). CXCR4 also plays a crucial role in survival and restoration of BM stromal cells after myeloablative irradiation, where the loss of BM stromal cells was more severe in CXCR4-deficient mice compared to WT mice. In addition, transplantation of WT donor HSPC into CXCR4-deficient recipient mice demonstrated reduced HSPC homing and early hematopoietic reconstitution. We found that CXCR4 signaling attenuates irradiation-induced BM stromal cell loss by upregulating the expression of the antiapoptotic protein Survivin via the PI3K pathway. Our study suggests that SDF-1-CXCR4 signaling in the stromal microenvironment cells plays a crucial role in maintenance of HSPCs during homeostasis, and promotes niche regeneration and early hematopoietic reconstitution after transplantation. Modulation of CXCR4 signaling in the HSPC microenvironment could be a means to enhance hematopoietic recovery after clinical hematopoietic cell transplantation.
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Affiliation(s)
- Pratibha Singh
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA.,Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Khalid S Mohammad
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Louis M Pelus
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA.,Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
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17
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Shen Y, Zhang W, Lee L, Hong M, Lee M, Chou G, Yu L, Sui Y, Chou B. RETRACTED: Down-regulated microRNA-195-5p and up-regulated CXCR4 attenuates the heart function injury of heart failure mice via inactivating JAK/STAT pathway. Int Immunopharmacol 2020; 82:106225. [PMID: 32155465 DOI: 10.1016/j.intimp.2020.106225] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/16/2020] [Accepted: 01/16/2020] [Indexed: 12/15/2022]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. Concern was raised about the integrity of the images in Figure 6, which appear to contain suspected image duplications, as detailed here: https://pubpeer.com/publications/A31DE9EEF13ED6B88BCC86A9CAC8D9 and here: https://docs.google.com/spreadsheets/d/1r0MyIYpagBc58BRF9c3luWNlCX8VUvUuPyYYXzxWvgY/edit#gid=262337249. Most of these image duplications involve either pasting portions of one image into another, or rotating/flipping the image. Numerous additional suspected image duplications were detected within Figures 2A and 7A. The journal requested the corresponding author comment on these concerns and provide the raw data. The authors did not respond to this request and therefore the Editor-in-Chief decided to retract the article.
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Affiliation(s)
- Yuhua Shen
- Department of Cardiology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518106, Guangdong, China
| | - Wen Zhang
- Department of Cardiology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518106, Guangdong, China
| | - Lijun Lee
- Nanhai Hospital, Southern Medical University Carvascular Medicine, Foshan 528244, Guangdong, China
| | - Mianming Hong
- Nanhai Hospital, Southern Medical University Carvascular Medicine, Foshan 528244, Guangdong, China
| | - Minfei Lee
- Nanhai Hospital, Southern Medical University Carvascular Medicine, Foshan 528244, Guangdong, China
| | - Guohui Chou
- Nanhai Hospital, Southern Medical University Carvascular Medicine, Foshan 528244, Guangdong, China
| | - Li Yu
- Nanhai Hospital, Southern Medical University Carvascular Medicine, Foshan 528244, Guangdong, China
| | - Yuqing Sui
- Nanhai Hospital, Southern Medical University Carvascular Medicine, Foshan 528244, Guangdong, China
| | - Baihua Chou
- Nanhai Hospital, Southern Medical University Carvascular Medicine, Foshan 528244, Guangdong, China.
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18
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Daniel SK, Seo YD, Pillarisetty VG. The CXCL12-CXCR4/CXCR7 axis as a mechanism of immune resistance in gastrointestinal malignancies. Semin Cancer Biol 2019; 65:176-188. [PMID: 31874281 DOI: 10.1016/j.semcancer.2019.12.007] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 12/03/2019] [Accepted: 12/11/2019] [Indexed: 02/07/2023]
Abstract
Single agent checkpoint inhibitor therapy has not been effective for most gastrointestinal solid tumors, but combination therapy with drugs targeting additional immunosuppressive pathways is being attempted. One such pathway, the CXCL12-CXCR4/CXCR7 chemokine axis, has attracted attention due to its effects on tumor cell survival and metastasis as well as immune cell migration. CXCL12 is a small protein that functions in normal hematopoietic stem cell homing in addition to repair of damaged tissue. Binding of CXCL12 to CXCR4 leads to activation of G protein signaling kinases such as P13K/mTOR and MEK/ERK while binding to CXCR7 leads to β-arrestin mediated signaling. While some gastric and colorectal carcinoma cells have been shown to make CXCL12, the primary source in pancreatic cancer and peritoneal metastases is cancer-associated fibroblasts. Binding of CXCL12 to CXCR4 and CXCR7 on tumor cells leads to anti-apoptotic signaling through Bcl-2 and survivin upregulation, as well as promotion of the epithelial-to-mesechymal transition through the Rho-ROCK pathway and alterations in cell adhesion molecules. High levels of CXCL12 seen in the bone marrow, liver, and spleen could partially explain why these are popular sites of metastases for many tumors. CXCL12 is a chemoattractant for lymphocytes at lower levels, but becomes chemorepellant at higher levels; it is unclear exactly what gradient exists in the tumor microenvironment and how this influences tumor-infiltrating lymphocytes. AMD3100 (Plerixafor or Mozobil) is a small molecule CXCR4 antagonist and is the most frequently used drug targeting the CXCL12-CXCR4/CXCR7 axis in clinical trials for gastrointestinal solid tumors currently. Other small molecules and monoclonal antibodies against CXCR4 are being trialed. Further understanding of the CXCL12- CXCR4/CXCR7 chemokine axis in the tumor microenvironment will allow more effective targeting of this pathway in combination immunotherapy.
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Affiliation(s)
- Sara K Daniel
- University of Washington, Dept. of Surgery, Seattle, WA, USA
| | - Y David Seo
- University of Washington, Dept. of Surgery, Seattle, WA, USA
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Chen R, Sugiyama A, Seno H, Sugimoto M. Identification of modules and functional analysis in CRC subtypes by integrated bioinformatics analysis. PLoS One 2019; 14:e0221772. [PMID: 31469863 PMCID: PMC6716647 DOI: 10.1371/journal.pone.0221772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 08/14/2019] [Indexed: 01/27/2023] Open
Abstract
Colorectal cancer is one of the top three causes of cancer-related mortality globally, but no predictive molecular biomarkers are currently available for identifying the disease stage of colorectal cancer patients. Common molecular patterns in the disease, beyond superficial manifestations, can be significant in determining treatment choices. In this study, we used microarray data from colorectal cancer and adjacent normal tissue from the GEO database. These data were categorized into four consensus molecular subtypes based on distinct gene expression signatures. Weighted gene-based protein-protein interaction network analysis was performed for each subtype. NUSAP1, CD44, and COL4A1 modules were found to be statistically significant and present among all the subtypes and displayed though similar but not identical functional enrichment results. Reference of the characteristics of the subtypes to functional modules is necessary since the latter can stay resistant to platform changes and technique noise when compared with other analyses. The CMS4-mesenchymal group, which currently has a poor prognosis, was examined in the study. It is composed mainly of genes involved in immune and stromal expression, with modules focused on ECM dysregulation and chemokine biological processes. Hub genes detection and its' mapping into the protein-protein interaction network can be indicative of possible targets against specific modules. This approach identified subtypes using enrichment-oriented analysis in functional modules. Proper annotation of functional analysis of modules from different subtypes of CRC might be directive for finding extra options for treatment targets and guiding clinical routines.
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Affiliation(s)
- Ru Chen
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Aiko Sugiyama
- DSK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masahiro Sugimoto
- Research and Development Center for Minimally Invasive Therapies Health Promotion and Preemptive Medicine, Tokyo Medical University, Tokyo, Japan
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The Emerging Role of Checkpoint Inhibition in Microsatellite Stable Colorectal Cancer. J Pers Med 2019; 9:jpm9010005. [PMID: 30654522 PMCID: PMC6463010 DOI: 10.3390/jpm9010005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/05/2019] [Accepted: 01/11/2019] [Indexed: 12/22/2022] Open
Abstract
Checkpoint inhibitor therapy has introduced a revolution in contemporary anticancer therapy. It has led to dramatic improvements in patient outcomes and has spawned tremendous research into novel immunomodulatory agents and combination therapy that has changed the trajectory of cancer care. However, clinical benefit in patients with colorectal cancer has been generally limited to tumors with loss of mismatch repair function and those with specific germline mutations in the DNA polymerase gene. Unfortunately, tumors with these specific mutator phenotypes are in the minority. Recent pre-clinical and clinical studies have begun to reveal encouraging results suggesting that checkpoint inhibitor therapy can be expanded to an increasing number of colorectal tumors with microsatellite stability and the absence of traditional predictive biomarkers of checkpoint inhibitor response. These studies generally rely on combinations of checkpoint inhibitors with chemotherapy, molecular targeted therapy, radiation therapy, or other novel immunomodulatory agents. This article will review the most current data in microsatellite stable colorectal cancer.
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Wang X, Ghareeb WM, Lu X, Huang Y, Huang S, Chi P. Coexpression network analysis linked H2AFJ to chemoradiation resistance in colorectal cancer. J Cell Biochem 2018; 120:10351-10362. [PMID: 30565747 DOI: 10.1002/jcb.28319] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 11/28/2018] [Indexed: 12/27/2022]
Abstract
Neoadjuvant chemoradiotherapy (CRT) resistance is a complex phenomenon and it remains a major problem for patients with a priori resistant tumor. Therefore, there is a strong need to investigate molecular biomarkers which may guide for treatment decision-making. In our study, weighted gene coexpression network analysis was applied to identify CRT-resistance hub modules in 12 colorectal cancer (CRC) cell lines with different CRT sensitivities from GSE20298 data set. The green module and purple module had the highest correlations with CRT resistance. Gene ontology enrichment analysis indicated that the function of these two modules focused on interferon-mediated signaling pathway, immune response, chromatin modulation, Rho GTPases activities, and regulation of apoptotic process. Then, 15 hub genes in both the coexpression and protein-protein interaction networks were selected. Among these hub genes, higher H2A histone family member J (H2AFJ) expression was independently validated in patient cohorts from two testing data sets of GSE46862 and GSE68204 to be related to CRT resistance. The receiver operating characteristic curve showed that H2AFJ could efficiently distinguish CRT-resistance cases from CRT-sensitive cases in another two testing data sets. Furthermore, meta-analysis of 12 Gene Expression Omnibus-sourced data sets showed that H2AFJ messenger RNA levels were significantly higher in CRC tissues than in normal colon tissues. High H2AFJ expression was correlated with a significant worse event- and relapse-free survival by analyzing the data from the R2: Genomics Analysis and Visualization Platform. Gene set enrichment analysis determined that the mechanism of H2AFJ-mediated CRT resistance might involve the ERK5 (MAPK7), human immunodeficiency virus Nef (HIV Nef), and inflammatory pathways. This study is the first, to the best of our knowledge, to implicate and verify H2AFJ as an effective new marker for CRT response prediction.
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Affiliation(s)
- Xiaojie Wang
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Waleed M Ghareeb
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, Fuzhou, People's Republic of China.,Department of General and Gastrointestinal Surgery, Suez Canal University, Ismailia, Egypt
| | - Xingrong Lu
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Ying Huang
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Shenghui Huang
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Pan Chi
- Department of Colorectal Surgery, Union Hospital, Fujian Medical University, Fuzhou, People's Republic of China
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Fu Z, Zhang P, Luo H, Huang H, Wang F. CXCL12 modulates the radiosensitivity of cervical cancer by regulating CD44. Mol Med Rep 2018; 18:5101-5108. [PMID: 30320394 DOI: 10.3892/mmr.2018.9554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 07/13/2018] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to investigate the regulation of stromal cell‑derived factor 1 (CXCL12) in the radioresistance of cervical cancer, which was upregulated in tumors in our previous study. A CCK‑8 assay was used to detect cell viability. Flow cytometry was used to measure cell apoptosis and the expression levels of CD44 and CXCR4. ELISA was performed to measure the expression level of CXCL12 protein and CXCL12 mRNA was detected by reverse transcription‑quantitative polymerase chain reaction assays. Cell viability and apoptosis were determined with or without treatment with CXCL12 small interfering (si)RNA to examine the function of CXCL12 in Hela cells. The expression level of CD44 antigen (CD44) and C‑X‑C chemokine receptor type 4 (CXCR4) were measured using flow cytometry in the presence of CXCL12 and irradiation. In the present study, it was demonstrated that inhibition of CXCL12 reduced cell viability and increased cellular apoptosis in Hela cells treated with irradiation. Following treatment with CXCL12 siRNA, the expression level of CD44 was downregulated and the expression level of CXCR4 was upregulated. This effect of regulation additionally occurred in the presence of irradiation. In conclusion, the present data demonstrated that CXCL12 served an important role in the radioresistance of cervical cancer, suggestinh a novel therapeutic target.
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Affiliation(s)
- Zhichao Fu
- Department of Radiation Oncology, Dongfang Hospital, Xiamen University, Fuzhou, Fujian 350025, P.R. China
| | - Pei Zhang
- Department of Radiation Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, P.R. China
| | - Huachun Luo
- Department of Radiation Oncology, Fuzhou General Hospital of Nanjing Military Command, Fuzhou, Fujian 350025, P.R. China
| | - Huijuan Huang
- Department of Gynaecology and Obstetrics, Dongfang Hospital, Xiamen University, Fuzhou, Fujian 350025, P.R. China
| | - Fengmei Wang
- Department of Gynaecology and Obstetrics, Dongfang Hospital, Xiamen University, Fuzhou, Fujian 350025, P.R. China
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23
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Rafiei S, Gui B, Wu J, Liu XS, Kibel AS, Jia L. Targeting the MIF/CXCR7/AKT Signaling Pathway in Castration-Resistant Prostate Cancer. Mol Cancer Res 2018; 17:263-276. [PMID: 30224544 DOI: 10.1158/1541-7786.mcr-18-0412] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/31/2018] [Accepted: 09/06/2018] [Indexed: 11/16/2022]
Abstract
Although androgen deprivation therapy (ADT) is an effective treatment for metastatic prostate cancer, incurable castration-resistant prostate cancer (CRPC) inevitably develops. Importantly, androgen receptor (AR) continues to be critical for prostate cancer growth and progression after ADT. One of the underlying molecular mechanisms is derepression of AR-repressed genes involved in cell cycle and proliferation after ADT. Here, the data demonstrate that C-X-C chemokine receptor type 7 (CXCR7), a seven-transmembrane G-protein-coupled chemokine receptor, is an AR-repressed gene and is upregulated after ADT. AR directly regulates CXCR7 using clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 (CRISPR/Cas9) gene editing. Macrophage migration inhibitory factor (MIF) was identified as a ligand for CXCR7, which induces expression of cell-cycle genes through activating AKT signaling pathway. Previous studies have been focused on chemokine CXCL12 and its receptor CXCR4 in mediating metastasis of various cancer types, including prostate cancer. The critical roles of CXCL12/CXCR4 axis in the interaction between cancer cells and their microenvironment render it a promising therapeutic target in cancer treatment. The data suggest that the MIF/CXCR7/AKT pathway drives CRPC growth and metastasis independent of the CXCL12/CXCR4 axis. Furthermore, CXCR7 blockade in combination with anti-androgen enzalutamide inhibits CRPC tumor growth and potentially prevents metastasis. Notably, both MIF and CXCR7 are overexpressed in CRPC patient specimens and therefore are attractive therapeutic targets for these patients. IMPLICATIONS: This work suggests that CXCR7 plays more important roles than CXCR4 in CRPC progression; thus, targeting CXCR7 in combination with anti-androgen is a promising therapeutic approach for metastatic CRPC.
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Affiliation(s)
- Shahrzad Rafiei
- Division of Urology, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Bin Gui
- Division of Urology, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jiaxin Wu
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - X Shirley Liu
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Adam S Kibel
- Division of Urology, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Li Jia
- Division of Urology, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
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Martinez-Zubiaurre I, Chalmers AJ, Hellevik T. Radiation-Induced Transformation of Immunoregulatory Networks in the Tumor Stroma. Front Immunol 2018; 9:1679. [PMID: 30105016 PMCID: PMC6077256 DOI: 10.3389/fimmu.2018.01679] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 07/09/2018] [Indexed: 12/27/2022] Open
Abstract
The implementation of novel cancer immunotherapies in the form of immune checkpoint blockers represents a major advancement in the treatment of cancer, and has renewed enthusiasm for identifying new ways to induce antitumor immune responses in patients. Despite the proven efficacy of neutralizing antibodies that target immune checkpoints in some refractory cancers, many patients do not experience therapeutic benefit, possibly owing to a lack of antitumor immune recognition, or to the presence of dominant immunosuppressive mechanisms in the tumor microenvironment (TME). Recent developments in this field have revealed that local radiotherapy (RT) can transform tumors into in situ vaccines, and may help to overcome some of the barriers to tumor-specific immune rejection. RT has the potential to ignite tumor immune recognition by generating immunogenic signals and releasing neoantigens, but the multiple immunosuppressive forces in the TME continue to represent important barriers to successful tumor rejection. In this article, we review the radiation-induced changes in the stromal compartments of tumors that could have an impact on tumor immune attack. Since different RT regimens are known to mediate strikingly different effects on the multifarious elements of the tumor stroma, special emphasis is given to different RT schedules, and the time after treatment at which the effects are measured. A better understanding of TME remodeling following specific RT regimens and the window of opportunity offered by RT will enable optimization of the design of novel treatment combinations.
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Affiliation(s)
- Inigo Martinez-Zubiaurre
- Department of Clinical Medicine, Faculty of Health Sciences, UiT the Arctic University of Norway, Tromsø, Norway
| | - Anthony J Chalmers
- Institute of Cancer Sciences, Beatson West of Scotland Cancer Centre, University of Glasgow, Glasgow, United Kingdom
| | - Turid Hellevik
- Department of Radiation Oncology, University Hospital of Northern Norway, Tromsø, Norway
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