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Govindarajan B, Sbrissa D, Pressprich M, Kim S, Rishi AK, Vaishampayan U, Cher ML, Chinni SR. Adaptor proteins mediate CXCR4 and PI4KA crosstalk in prostate cancer cells and the significance of PI4KA in bone tumor growth. Sci Rep 2023; 13:20634. [PMID: 37996444 PMCID: PMC10667255 DOI: 10.1038/s41598-023-47633-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023] Open
Abstract
The chemokine receptor, CXCR4 signaling regulates cell growth, invasion, and metastasis to the bone-marrow niche in prostate cancer (PCa). Previously, we established that CXCR4 interacts with phosphatidylinositol 4-kinase IIIα (PI4KIIIα encoded by PI4KA) through its adaptor proteins and PI4KA overexpressed in the PCa metastasis. To further characterize how the CXCR4-PI4KIIIα axis promotes PCa metastasis, here we identify CXCR4 binds to PI4KIIIα adaptor proteins TTC7 and this interaction induce plasma membrane PI4P production in prostate cancer cells. Inhibiting PI4KIIIα or TTC7 reduces plasma membrane PI4P production, cellular invasion, and bone tumor growth. Using metastatic biopsy sequencing, we found PI4KA expression in tumors correlated with overall survival and contributes to immunosuppressive bone tumor microenvironment through preferentially enriching non-activated and immunosuppressive macrophage populations. Altogether we have characterized the chemokine signaling axis through CXCR4-PI4KIIIα interaction contributing to the growth of prostate cancer bone metastasis.
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Affiliation(s)
- Barani Govindarajan
- Department of Pathology, Wayne State University, School of Medicine, 9245 Scott Hall, 540 E. Canfield Avenue, Detroit, MI, 48201, USA
| | - Diego Sbrissa
- Department of Urology, Wayne State University, School of Medicine, Detroit, MI, 48201, USA
| | - Mark Pressprich
- Department of Urology, Wayne State University, School of Medicine, Detroit, MI, 48201, USA
| | - Seongho Kim
- Department of Oncology, Wayne State University, School of Medicine, Detroit, MI, 48201, USA
- Biostatistics and Bioinformatics Core, Wayne State University, School of Medicine, Detroit, MI, 48201, USA
| | - Arun K Rishi
- Department of Oncology, Wayne State University, School of Medicine, Detroit, MI, 48201, USA
| | - Ulka Vaishampayan
- Department of Oncology, University of Michigan, 7217 Rogel Cancer Center, Ann Arbor, MI, USA
| | - Michael L Cher
- Department of Pathology, Wayne State University, School of Medicine, 9245 Scott Hall, 540 E. Canfield Avenue, Detroit, MI, 48201, USA
- Department of Urology, Wayne State University, School of Medicine, Detroit, MI, 48201, USA
- Department of Oncology, Wayne State University, School of Medicine, Detroit, MI, 48201, USA
| | - Sreenivasa R Chinni
- Department of Pathology, Wayne State University, School of Medicine, 9245 Scott Hall, 540 E. Canfield Avenue, Detroit, MI, 48201, USA.
- Department of Urology, Wayne State University, School of Medicine, Detroit, MI, 48201, USA.
- Department of Oncology, Wayne State University, School of Medicine, Detroit, MI, 48201, USA.
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2
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Bao S, Darvishi M, H Amin A, Al-Haideri MT, Patra I, Kashikova K, Ahmad I, Alsaikhan F, Al-Qaim ZH, Al-Gazally ME, Kiasari BA, Tavakoli-Far B, Sidikov AA, Mustafa YF, Akhavan-Sigari R. CXC chemokine receptor 4 (CXCR4) blockade in cancer treatment. J Cancer Res Clin Oncol 2023; 149:7945-7968. [PMID: 36905421 DOI: 10.1007/s00432-022-04444-w] [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: 05/25/2022] [Accepted: 10/19/2022] [Indexed: 03/12/2023]
Abstract
CXC chemokine receptor type 4 (CXCR4) is a member of the G protein-coupled receptors (GPCRs) superfamily and is specific for CXC chemokine ligand 12 (CXCL12, also known as SDF-1), which makes CXCL12/CXCR4 axis. CXCR4 interacts with its ligand, triggering downstream signaling pathways that influence cell proliferation chemotaxis, migration, and gene expression. The interaction also regulates physiological processes, including hematopoiesis, organogenesis, and tissue repair. Multiple evidence revealed that CXCL12/CXCR4 axis is implicated in several pathways involved in carcinogenesis and plays a key role in tumor growth, survival, angiogenesis, metastasis, and therapeutic resistance. Several CXCR4-targeting compounds have been discovered and used for preclinical and clinical cancer therapy, most of which have shown promising anti-tumor activity. In this review, we summarized the physiological signaling of the CXCL12/CXCR4 axis and described the role of this axis in tumor progression, and focused on the potential therapeutic options and strategies to block CXCR4.
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Affiliation(s)
- Shunshun Bao
- The First Clinical Medical College, Xuzhou Medical University, 221000, Xuzhou, China
| | - Mohammad Darvishi
- Infectious Diseases and Tropical Medicine Research Center (IDTMRC), Department of Aerospace and Subaquatic Medicine, AJA University of Medicinal Sciences, Tehran, Iran
| | - Ali H Amin
- Deanship of Scientific Research, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
- Zoology Department, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt
| | - Maysoon T Al-Haideri
- Department of Physiotherapy, Cihan University-Erbil, Erbil, Kurdistan Region, Iraq
| | - Indrajit Patra
- An Independent Researcher, National Institute of Technology Durgapur, Durgapur, West Bengal, India
| | | | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Fahad Alsaikhan
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
| | | | | | - Bahman Abedi Kiasari
- Virology Department, Faculty of Veterinary Medicine, The University of Tehran, Tehran, Iran.
| | - Bahareh Tavakoli-Far
- Dietary Supplements and Probiotic Research Center, Alborz University of Medical Sciences, Karaj, Iran.
- Department of Physiology and Pharmacology, Faculty of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
| | - Akmal A Sidikov
- Rector, Ferghana Medical Institute of Public Health, Ferghana, Uzbekistan
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, 41001, Iraq
| | - Reza Akhavan-Sigari
- Department of Neurosurgery, University Medical Center Tuebingen, Tübingen, Germany
- Department of Health Care Management and Clinical Research, Collegium Humanum Warsaw Management University, Warsaw, Poland
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Govindarajan B, Sbrissa D, Pressprich M, Kim S, Vaishampayan U, Cher ML, Chinni S. Adaptor proteins mediate CXCR4 and PI4KA crosstalk in prostate cancer cells and the significance of PI4KA in bone tumor growth. RESEARCH SQUARE 2023:rs.3.rs-2590830. [PMID: 36865146 PMCID: PMC9980273 DOI: 10.21203/rs.3.rs-2590830/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
The chemokine receptor, CXCR4 signaling regulates cell growth, invasion, and metastasis to the bone-marrow niche in prostate cancer (PCa). Previously, we established that CXCR4 interacts with phosphatidylinositol 4-kinase IIIα (PI4KIIIα encoded by PI4KA) through its adaptor proteins and PI4KA overexpressed in the PCa metastasis. To further characterize how the CXCR4-PI4KIIIα axis promotes PCa metastasis, here we identify CXCR4 binds to PI4KIIIα adaptor proteins TTC7 and this interaction induce plasma membrane PI4P production in prostate cancer cells. Inhibiting PI4KIIIα or TTC7 reduces plasma membrane PI4P production, cellular invasion, and bone tumor growth. Using metastatic biopsy sequencing, we found PI4KA expression in tumors correlated with overall survival and contributes to immunosuppressive bone tumor microenvironment through preferentially enriching non-activated and immunosuppressive macrophage populations. Altogether we have characterized the chemokine signaling axis through CXCR4-PI4KIIIα interaction contributing to the growth of prostate cancer bone metastasis.
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4
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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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Wu S, Yuan W, Luo W, Nie K, Wu X, Meng X, Shen Z, Wang X. MiR-126 downregulates CXCL12 expression in intestinal epithelial cells to suppress the recruitment and function of macrophages and tumorigenesis in a murine model of colitis-associated colorectal cancer. Mol Oncol 2022; 16:3465-3489. [PMID: 35363937 PMCID: PMC9533691 DOI: 10.1002/1878-0261.13218] [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: 11/10/2021] [Revised: 02/23/2022] [Accepted: 03/30/2022] [Indexed: 12/02/2022] Open
Abstract
Inflammatory bowel disease, characterised by chronic relapsing‐remitting colitis, is a significant risk factor for colorectal cancer (CRC). Previously, we showed that miR‐126 functions as a tumour suppressor in CRC and is inversely correlated with tumour proliferation, metastasis and patient prognosis. In the current study, we documented a protective role for miR‐126 in colitis‐associated CRC (CAC) and its underlying mechanism. We detected downregulated miR‐126 expression during colorectal tumorigenesis in the mouse CAC model and in specimens from patients with CRC. The deficiency of miR‐126 in intestinal epithelial cells (IECs) exacerbated tumorigenesis in mice. We identified CXCL12 as a direct target of miR‐126 in inhibiting the development of colitis and CAC. Moreover, miR‐126 regulated the recruitment of macrophages via CXCL12 and decreased the levels of proinflammatory cytokines (IL‐6, IL‐12 and IL‐23). In addition, IL‐6 secreted by macrophages, which were regulated by cocultured transfected CRC cells, altered the proliferation and migration of colon cells. Our data suggest that miR‐126 exerts an antitumour effect on CAC by regulating the crosstalk between IECs and macrophages via CXCL12‐IL‐6 signalling. Our study contributes to the understanding of cancer progression and suggests miR‐126 as a potential therapy for CRC.
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Affiliation(s)
- Shuai Wu
- Department of Gastroenterology, The Central South University, Changsha, Hunan, China.,Key Laboratory of Non-resolving Inflammation and Cancer of the Hunan Province, The Third Xiangya Hospital, The Central South University, Changsha, Hunan, China
| | - Wei Yuan
- Department of Gastroenterology, The Central South University, Changsha, Hunan, China.,Key Laboratory of Non-resolving Inflammation and Cancer of the Hunan Province, The Third Xiangya Hospital, The Central South University, Changsha, Hunan, China.,Department of Hepatology, The First Affiliated Hospital, The Hunan University of Chinese Medicine, Changsha, Hunan, P.R. China
| | - Weiwei Luo
- Department of Gastroenterology, The Central South University, Changsha, Hunan, China.,Key Laboratory of Non-resolving Inflammation and Cancer of the Hunan Province, The Third Xiangya Hospital, The Central South University, Changsha, Hunan, China
| | - Kai Nie
- Department of Gastroenterology, The Central South University, Changsha, Hunan, China.,Key Laboratory of Non-resolving Inflammation and Cancer of the Hunan Province, The Third Xiangya Hospital, The Central South University, Changsha, Hunan, China
| | - Xing Wu
- Department of Gastroenterology, The Central South University, Changsha, Hunan, China.,Key Laboratory of Non-resolving Inflammation and Cancer of the Hunan Province, The Third Xiangya Hospital, The Central South University, Changsha, Hunan, China
| | - Xiangrui Meng
- Department of Gastroenterology, The Central South University, Changsha, Hunan, China.,Key Laboratory of Non-resolving Inflammation and Cancer of the Hunan Province, The Third Xiangya Hospital, The Central South University, Changsha, Hunan, China
| | - Zhaohua Shen
- Department of Gastroenterology, The Central South University, Changsha, Hunan, China.,Key Laboratory of Non-resolving Inflammation and Cancer of the Hunan Province, The Third Xiangya Hospital, The Central South University, Changsha, Hunan, China
| | - Xiaoyan Wang
- Department of Gastroenterology, The Central South University, Changsha, Hunan, China.,Key Laboratory of Non-resolving Inflammation and Cancer of the Hunan Province, The Third Xiangya Hospital, The Central South University, Changsha, Hunan, China
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Braga M, Leow CH, Gil JH, Teh JH, Carroll L, Long NJ, Tang MX, Aboagye EO. Investigating CXCR4 expression of tumor cells and the vascular compartment: A multimodal approach. PLoS One 2021; 16:e0260186. [PMID: 34793563 PMCID: PMC8601444 DOI: 10.1371/journal.pone.0260186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/03/2021] [Indexed: 11/19/2022] Open
Abstract
The C-X-C chemokine receptor 4 (CXCR4) is G protein-coupled receptor that upon binding to its cognate ligand, can lead to tumor progression. Several CXCR4-targeted therapies are currently under investigation, and with it comes the need for imaging agents capable of accurate depiction of CXCR4 for therapeutic stratification and monitoring. PET agents enjoy the most success, but more cost-effective and radiation-free approaches such as ultrasound (US) imaging could represent an attractive alternative. In this work, we developed a targeted microbubble (MB) for imaging of vascular CXCR4 expression in cancer. A CXCR4-targeted MB was developed through incorporation of the T140 peptide into the MB shell. Binding properties of the T140-MB and control, non-targeted MB (NT-MB) were evaluated in MDA-MB-231 cells where CXCR4 expression was knocked-down (via shRNA) through optical imaging, and in the lymphoma tumor models U2932 and SuDHL8 (high and low CXCR4 expression, respectively) by US imaging. PET imaging of [18F]MCFB, a tumor-penetrating CXCR4-targeted small molecule, was used to provide whole-tumor CXCR4 readouts. CXCR4 expression and microvessel density were performed by immunohistochemistry analysis and western blot. T140-MB were formed with similar properties to NT-MB and accumulated sensitively and specifically in cells according to their CXCR4 expression. In NOD SCID mice, T140-MB persisted longer in tumors than NT-MB, indicative of target interaction, but showed no difference between U2932 and SuDHL8. In contrast, PET imaging with [18F]MCFB showed a marked difference in tumor uptake at 40-60 min post-injection between the two tumor models (p<0.05). Ex vivo analysis revealed that the large differences in CXCR4 expression between the two models are not reflected in the vascular compartment, where the MB are restricted; in fact, microvessel density and CXCR4 expression in the vasculature was comparable between U2932 and SuDHL8 tumors. In conclusion, we successfully developed a T140-MB that can be used for imaging CXCR4 expression in the tumor vasculature.
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Affiliation(s)
- Marta Braga
- Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Chee Hau Leow
- Department of Bioengineering, Faculty of Engineering, Imperial College London, London, United Kingdom
| | - Javier Hernandez Gil
- Department of Chemistry, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Jin H. Teh
- Department of Chemistry, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Laurence Carroll
- Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Nicholas J. Long
- Department of Chemistry, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Meng-Xing Tang
- Department of Bioengineering, Faculty of Engineering, Imperial College London, London, United Kingdom
| | - Eric O. Aboagye
- Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, United Kingdom
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Villani R, Murigneux V, Alexis J, Sim SL, Wagels M, Saunders N, Soyer HP, Parmentier L, Nikolaev S, Fink JL, Roy E, Khosrotehrani K. Subtype-Specific Analyses Reveal Infiltrative Basal Cell Carcinomas Are Highly Interactive with their Environment. J Invest Dermatol 2021; 141:2380-2390. [PMID: 33865912 DOI: 10.1016/j.jid.2021.02.760] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 02/11/2021] [Accepted: 02/16/2021] [Indexed: 12/13/2022]
Abstract
Little is known regarding the molecular differences between basal cell carcinoma (BCC) subtypes, despite clearly distinct phenotypes and clinical outcomes. In particular, infiltrative BCCs have poorer clinical outcomes in terms of response to therapy and propensity for dissemination. In this project, we aimed to use exome sequencing and RNA sequencing to identify somatic mutations and molecular pathways leading to infiltrative BCCs. Using whole-exome sequencing of 36 BCC samples (eight infiltrative) combined with previously reported exome data (58 samples), we determine that infiltrative BCCs do not contain a distinct somatic variant profile and carry classical UV-induced mutational signatures. RNA sequencing on both datasets revealed key differentially expressed genes, such as POSTN and WISP1, suggesting increased integrin and Wnt signaling. Immunostaining for periostin and WISP1 clearly distinguished infiltrative BCCs, and nuclear β-catenin staining patterns further validated the resulting increase in Wnt signaling in infiltrative BCCs. Of significant interest, in BCCs with mixed morphology, infiltrative areas expressed WISP1, whereas nodular areas did not, supporting a continuum between subtypes. In conclusion, infiltrative BCCs do not differ in their genomic alteration in terms of initiating mutations. They display a specific type of interaction with the extracellular matrix environment regulating Wnt signaling.
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Affiliation(s)
- Rehan Villani
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia
| | - Valentine Murigneux
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia; QCIF Facility for Advanced Bioinformatics, Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Josue Alexis
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia; Department of Plastic Surgery, Princess Alexandra Hospital, Metro South Health, Brisbane, Australia
| | - Seen-Ling Sim
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia
| | - Michael Wagels
- Department of Plastic Surgery, Princess Alexandra Hospital, Metro South Health, Brisbane, Australia
| | - Nicholas Saunders
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia
| | - H Peter Soyer
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia; Department of Dermatology, Princess Alexandra Hospital, Metro South Health, Brisbane, Australia
| | | | - Sergey Nikolaev
- INSERM U981, Gustave Roussy Cancer Campus, Université Paris Saclay, Villejuif, France
| | - J Lynn Fink
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia
| | - Edwige Roy
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia
| | - Kiarash Khosrotehrani
- The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia; Department of Dermatology, Princess Alexandra Hospital, Metro South Health, Brisbane, Australia.
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Kang W, Du L, Liang Q, Zhang R, Lv C, Ge S. Transcriptome analysis reveals the mechanism of stromal cell-derived factor-1 and exendin-4 synergistically promoted periodontal ligament stem cells osteogenic differentiation. PeerJ 2021; 9:e12091. [PMID: 34532163 PMCID: PMC8404574 DOI: 10.7717/peerj.12091] [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: 04/29/2021] [Accepted: 08/09/2021] [Indexed: 11/20/2022] Open
Abstract
Stromal cell-derived factor-1 (SDF-1) and Exendin-4 (EX-4) play beneficial roles in promoting periodontal ligament stem cells (PDLSCs) osteogenic differentiation, while the detailed mechanism has not been clarified. In this study, we aimed to evaluate the biological mechanism of SDF-1 and EX-4 alone or synergistic application in regulating PDLSCs differentiation by RNA-sequencing (RNA-seq). A total of 110, 116 and 109 differentially expressed genes (DEGs) were generated in osteogenic medium induced PDLSCs treated by SDF-1, EX-4, and SDF-1+EX-4, respectively. The DEGs in SDF-1 group were enriched in signal transduction related signaling pathways; the DEGs in EX-4 group were enriched in metabolism and biosynthesis-related pathways; and the DEGs generated in SDF-1+EX-4 group were mainly enriched in RNA polymerase II transcription, cell differentiation, chromatin organization, protein phosphorylation pathways. Based on Venn analysis, a total of 37 specific DEGs were identified in SDF-1+EX-4 group, which were mainly enriched in negative regulation of autophagy and cellular component disassembly signaling pathways. Short time-series expression miner (STEM) analysis grouped all expressed genes of PDLSCs into 49 clusters according to the dynamic expression patterns and 25 genes, including NRSN2, CHD9, TUBA1A, distributed in 10 gene clusters in SDF-1+EX-4 treated PDLSCs were significantly up-regulated compared with the SDF-1 and EX-4 alone groups. The gene set enrichment analysis indicated that SDF-1 could amplify the role of EX-4 in regulating varied signaling pathways, such as type II diabetes mellitus and insulin signaling pathways; while EX-4 could aggravate the effect of SDF-1 on PDLSCs biological roles via regulating primary immunodeficiency, tight junction signaling pathways. In summary, our study confirmed that SDF-1 and EX-4 combined application could enhance PDLSCs biological activity and promote PDLSCs osteogenic differentiation by regulating the metabolism, biosynthesis and immune-related signaling pathways.
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Affiliation(s)
- Wenyan Kang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Lingqian Du
- Department of Stomatology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Qianyu Liang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Rui Zhang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Chunxu Lv
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
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9
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Feng W, Huang W, Chen J, Qiao C, Liu D, Ji X, Xie M, Zhang T, Wang Y, Sun M, Tian D, Fan D, Nie Y, Wu K, Xia L. CXCL12-mediated HOXB5 overexpression facilitates Colorectal Cancer metastasis through transactivating CXCR4 and ITGB3. Theranostics 2021; 11:2612-2633. [PMID: 33456563 PMCID: PMC7806482 DOI: 10.7150/thno.52199] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/05/2020] [Indexed: 12/24/2022] Open
Abstract
Background: Metastasis is the major reason for the high mortality of colorectal cancer (CRC). However, the molecular mechanism underlying CRC metastasis remains unclear. Here, we report a novel role of homeobox B5 (HOXB5), a member of the HOX family, in promoting CRC metastasis. Method: The expression of HOXB5 and its target genes were examined by immunohistochemistry in human CRC. Chromatin immunoprecipitation and luciferase reporter assays were performed to measure the transcriptional regulation of target genes by HOXB5. The metastatic capacities of CRC cells were evaluated by in vivo lung and liver metastatic models. Results: The elevated expression of HOXB5 was positively correlated with distant metastasis, higher AJCC stage, and poor prognosis in CRC patients. HOXB5 expression was an independent and significant risk factor for the recurrence and survival in CRC patients. Overexpression of HOXB5 promoted CRC metastasis by transactivating metastatic related genes, C-X-C motif chemokine receptor 4 (CXCR4) and integrin subunit beta 3 (ITGB3). C-X-C motif chemokine ligand 12 (CXCL12), which is the ligand of CXCR4, upregulated HOXB5 expression through the extracellular regulated protein kinase (ERK)/ETS proto-oncogene 1, transcription factor (ETS1) pathway. The knockdown of HOXB5 decreased CXCL12-enhanced CRC metastasis. Furthermore, AMD3100, a specific CXCR4 inhibitor, significantly suppressed HOXB5-mediated CRC metastasis. HOXB5 expression was positively correlated with CXCR4 and ITGB3 expression in human CRC tissues, and patients with positive co-expression of HOXB5/CXCR4, or HOXB5/ITGB3 exhibited the worst prognosis. Conclusion: Our study implicates HOXB5 as a prognostic biomarker in CRC, and defines a CXCL12-HOXB5-CXCR4 positive feedback loop that plays an important role in promoting CRC metastasis.
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Affiliation(s)
- Weibo Feng
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Wenjie Huang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Clinical Medicine Research Center for Hepatic Surgery of Hubei Province; Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei, 430030, China
| | - Jie Chen
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Chenyang Qiao
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Danfei Liu
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Xiaoyu Ji
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Meng Xie
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Tongyue Zhang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yijun Wang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Mengyu Sun
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Dean Tian
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Daiming Fan
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Yongzhan Nie
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Kaichun Wu
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Limin Xia
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
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10
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Shi Y, Riese DJ, Shen J. The Role of the CXCL12/CXCR4/CXCR7 Chemokine Axis in Cancer. Front Pharmacol 2020; 11:574667. [PMID: 33363463 PMCID: PMC7753359 DOI: 10.3389/fphar.2020.574667] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 10/29/2020] [Indexed: 12/27/2022] Open
Abstract
Chemokines are a family of small, secreted cytokines which regulate a variety of cell functions. The C-X-C motif chemokine ligand 12 (CXCL12) binds to C-X-C chemokine receptor type 4 (CXCR4) and C-X-C chemokine receptor type 7 (CXCR7). The interaction of CXCL12 and its receptors subsequently induces downstream signaling pathways with broad effects on chemotaxis, cell proliferation, migration, and gene expression. Accumulating evidence suggests that the CXCL12/CXCR4/CXCR7 axis plays a pivotal role in tumor development, survival, angiogenesis, metastasis, and tumor microenvironment. In addition, this chemokine axis promotes chemoresistance in cancer therapy via complex crosstalk with other pathways. Multiple small molecules targeting CXCR4/CXCR7 have been developed and used for preclinical and clinical cancer treatment. In this review, we describe the roles of the CXCL12/CXCR4/CXCR7 axis in cancer progression and summarize strategies to develop novel targeted cancer therapies.
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Affiliation(s)
| | | | - Jianzhong Shen
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
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11
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miRNA-20a suppressed lipopolysaccharide‐induced HK‐2 cells injury via NFκB and ERK1/2 signaling by targeting CXCL12. Mol Immunol 2020; 118:117-123. [DOI: 10.1016/j.molimm.2019.12.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/26/2019] [Accepted: 12/14/2019] [Indexed: 02/07/2023]
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12
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Long Y, Jiang Y, Zeng J, Dang Y, Chen Y, Lin J, Wei H, Xia H, Long J, Luo C, Chen Z, Huang Y, Li M. The expression and biological function of chemokine CXCL12 and receptor CXCR4/CXCR7 in placenta accreta spectrum disorders. J Cell Mol Med 2020; 24:3167-3182. [PMID: 31991051 PMCID: PMC7077540 DOI: 10.1111/jcmm.14990] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 12/13/2019] [Accepted: 12/17/2019] [Indexed: 12/29/2022] Open
Abstract
Objectives Investigation of mechanism related to excessive invasion of trophoblast cells in placenta accreta spectrum disorders (PAS) provides more strategies and ideas for clinical diagnosis and treatment. Materials and Methods Blood and placental samples were collected from included patients. The distribution and expression of CXCL12, CXCR4 and CXCR7 proteins in the paraffin of placental tissue in the included cases were analysed, and we analyse the downstream pathways or key proteins involved in cell invasion. Results Firstly, our results determined that CXCL12 and CXCR4/CXCR7 were increased in extravillous trophoblastic cell (CXCL12: P < .001; CXCR4: P < .001; CXCR7: P < .001), and the expression levels were closely related to the invasion depth of trophoblastic cells. Secondly, CXCL12 has the potential to become a biochemical indicator of PAS since the high expression of placental trophoblast CXCL12 may be an important source of blood CXCL12. Using lentivirus‐mediated RNA interference and overexpression assay, it was found that both chemokine CXCL12 and receptor CXCR4/CXCR7 are associated with regulation of trophoblast cell proliferation, migration and invasion. Further results proved that through the activating the phosphorylation and increasing the expression of MLC and AKT proteins in the Rho/rock, PI3K/AKT signalling pathway, CXCL12, CXCR4 and CXCR7 could up‐regulate the expression of RhoA, Rac1 and Cdc42 proteins to promote the migration and invasion of extravillous trophoblastic cell and ultimately formate the placenta accrete compare to the normal placenta. Conclusions Our research proved that trophoblasts may contribute to a PAS‐associated increase in CXCL12 levels in maternal blood. CXCL12 is not only associated with biological roles of PAS, but may also be potential for prediction of PAS.
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Affiliation(s)
- Yu Long
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yonghua Jiang
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, China
| | - Jingjing Zeng
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yiwu Dang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yue Chen
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jueying Lin
- Department of Gynecology and Obstetrics, The First People's Hospital of Nanning, Nanning, China
| | - Hongwei Wei
- Department of Gynecology and Obstetrics, The Maternal & Child Health Hospital, the Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Hongwei Xia
- Department of Gynecology and Obstetrics, The Maternal & Child Health Hospital, the Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Junqing Long
- Department of Gynecology and Obstetrics, The Maternal & Child Health Hospital, the Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Cuizhen Luo
- Department of Gynecology and Obstetrics, The First People's Hospital of Nanning, Nanning, China
| | - Zhiwei Chen
- School of Clinical Medicine, Guangxi Medical University, Nanning, China
| | - Yaling Huang
- Wuming District Center for Disease Prevention and Control, Nanning, China
| | - MuJun Li
- Department of Reproductive Center, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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13
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Bhagwani AR, Hultman S, Farkas D, Moncayo R, Dandamudi K, Zadu AK, Cool CD, Farkas L. Endothelial cells are a source of Nestin expression in Pulmonary Arterial Hypertension. PLoS One 2019; 14:e0213890. [PMID: 30883593 PMCID: PMC6422269 DOI: 10.1371/journal.pone.0213890] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 03/04/2019] [Indexed: 12/16/2022] Open
Abstract
Uncontrolled proliferation of endothelial cells is essential to the pathogenesis of pulmonary arterial hypertension (PAH). Both proliferation and cytoskeleton reorganization are associated with upregulation of the intermediate filament protein Nestin. Recently, accumulation of Nestin-expressing cells was found in pulmonary vascular lesions of PAH patients. The goal of this study is to determine if Nestin expression contributes to endothelial proliferation in pulmonary arterial hypertension, using both lung tissues and endothelial cells. Here we found that endothelial cells from complex and plexiform lesions of PAH patients expressed Nestin. These Nestin+ cells further stained positive for the angiogenic factors CXC chemokine ligand 12 and Wnt1. Likewise, in the chronic hypoxia/SU5416 animal model of pulmonary hypertension, Nestin+ endothelial cells were found in occlusive pulmonary vascular lesions. In vitro, both growing rat and human lung endothelial cells expressed Nestin protein. When Nestin was overexpressed in endothelial cells (both rat and human), Nestin overexpression promoted proliferation and expression of CXC chemokine ligand 12. Nestin overexpression further increased angiogenic tube formation in vitro. Conclusions: We found increased Nestin expression from endothelial cells of occlusive lung vascular lesions in severe pulmonary hypertension. Elevated Nestin expression likely contributes to unchecked pulmonary vascular proliferation and angiogenesis, possibly via induction of CXC chemokine ligand 12. Additional studies are required to determine whether targeting Nestin would be beneficial to treat PAH.
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MESH Headings
- Adult
- Aged
- Animals
- Cell Proliferation
- Cells, Cultured
- Chemokine CXCL12/metabolism
- Disease Models, Animal
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Female
- Humans
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/pathology
- Lung/blood supply
- Lung/metabolism
- Lung/pathology
- Male
- Middle Aged
- Neovascularization, Pathologic/genetics
- Neovascularization, Pathologic/metabolism
- Neovascularization, Pathologic/pathology
- Nestin/genetics
- Nestin/metabolism
- Pulmonary Artery/metabolism
- Pulmonary Artery/pathology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats
- Rats, Sprague-Dawley
- Young Adult
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Affiliation(s)
- Aneel R. Bhagwani
- Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, VA, United States of America
| | - Schuyler Hultman
- Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, VA, United States of America
| | - Daniela Farkas
- Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, VA, United States of America
| | - Rebecca Moncayo
- Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, VA, United States of America
| | - Kaivalya Dandamudi
- Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, VA, United States of America
| | - Arsema K. Zadu
- Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, VA, United States of America
| | - Carlyne D. Cool
- Department of Pathology, University of Colorado at Denver, Denver, CO, United States of America
| | - Laszlo Farkas
- Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, VA, United States of America
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14
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Kuonen F, Surbeck I, Sarin KY, Dontenwill M, Rüegg C, Gilliet M, Oro AE, Gaide O. TGFβ, Fibronectin and Integrin α5β1 Promote Invasion in Basal Cell Carcinoma. J Invest Dermatol 2018; 138:2432-2442. [PMID: 29758283 DOI: 10.1016/j.jid.2018.04.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 04/20/2018] [Accepted: 04/25/2018] [Indexed: 12/13/2022]
Abstract
Basal cell carcinoma (BCC) is the most frequent human cancer and is becoming an important health problem in an aging population. Based on their clinical and histological characteristics, thick BCC are typically divided into low-risk nodular and high-risk infiltrative subtypes, although the underlying mechanisms are poorly understood. We have identified molecular mechanisms that explain the aggressiveness of high-risk infiltrative BCC, with a potential direct clinical impact. In this study, we first show that fibroblasts, transforming growth factor-β, and fibronectin are found preferentially in infiltrative human BCC. This allowed us to develop in vivo models for the study of infiltrative BCC, which in turn let us confirm the role of transforming growth factor-β in inducing peritumoral fibronectin deposition and tumor infiltration. We then show that fibronectin promotes adhesion and migration of BCC cell lines through integrin α5β1-mediated phosphorylation of focal adhesion kinase. Fittingly, both inhibition of integrin α5β1 and phospho-focal adhesion kinase prevent fibronectin-induced migration of BCC cells in vitro as well as BCC infiltration in vivo. Altogether, our results open important insights into the pathogenesis of aggressive infiltrative BCC and identify integrin α5β1 or focal adhesion kinase inhibition as promising strategies for the treatment of advanced BCC.
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Affiliation(s)
- François Kuonen
- Department of Dermatology and Venereology, Hôpital de Beaumont, Lausanne University Hospital Center, Lausanne, Switzerland; Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA.
| | - Isabelle Surbeck
- Department of Dermatology and Venereology, Hôpital de Beaumont, Lausanne University Hospital Center, Lausanne, Switzerland
| | - Kavita Y Sarin
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Monique Dontenwill
- Laboratory of Biophotonic and Pharmacology, UMR7213 CNRS, University of Strasbourg, Strasbourg, France
| | - Curzio Rüegg
- Department of Medicine, Faculty of Science, University of Fribourg, Fribourg, Switzerland
| | - Michel Gilliet
- Department of Dermatology and Venereology, Hôpital de Beaumont, Lausanne University Hospital Center, Lausanne, Switzerland
| | - Anthony E Oro
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Olivier Gaide
- Department of Dermatology and Venereology, Hôpital de Beaumont, Lausanne University Hospital Center, Lausanne, Switzerland
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15
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Yu M, Han Y, Zhuo H, Zhang S. Endostar, a Modified Endostatin Induces Vascular Normalization to Improve Chemotherapy Efficacy Through Suppression of Src Signaling Pathway. Cancer Biother Radiopharm 2018; 33:131-138. [PMID: 29694242 DOI: 10.1089/cbr.2017.2399] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Pathological angiogenesis can be a significant barrier to effective cancer therapy. Recent evidence suggests that Endostar may induce vascular normalization, thereby improving tumor perfusion and systemic chemotherapy. However, the molecular mechanism by which Endostar makes chemotherapy more effective remains to be fully elucidated. In this study, established 4T1 breast tumor-bearing animals treated with Endostar were evaluated at serial time points for treatment-associated changes in vascular architecture. As a result, Endostar induced a morphologically and functionally normalized vascular network. Combined Endostar and doxorubicin exhibited significant antitumor (34% of control size) and antimetastatic effects (29% of control metastatic nodules) in vivo. Finally, a two-dimensional gel electrophoresis and MALDIQ-TOF MS/MS-based proteomics approach was used to identify differentially expressed proteins involved in vascular normalization during Endostar administration. SRCIN1 was detected as one of the most significantly increased proteins. SRCIN1 is a novel Src-binding protein that regulates Src activation through C-terminal Src kinase, and attenuated Src activation during Endostar treatment was further confirmed by immunoblotting. Collectively, these data provided a molecular basis for vascular normalization, which were associated with the observed synergistic effect in vivo.
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Affiliation(s)
- Min Yu
- 1 Department of Thoracic Oncology, West China Hospital, Sichuan University , Chengdu, China
| | - Yao Han
- 2 Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University , Chengdu, China
| | - Hongyu Zhuo
- 3 Department of Oncology, Shang Jin Nan Fu Hospital , Chengdu, China
| | - Shuang Zhang
- 4 Department of Head and Neck Oncology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University , Chengdu, China
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16
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Başer G, Sivrikoz ON, Karahan E, Şeker Ün E, Yıldırım H, Sarıoğlu S. Chemokine CXCR-4 and cyclooxygenase-2 in the pathogenesis of pterygium. Turk J Med Sci 2017; 47:1061-1066. [PMID: 29152967 DOI: 10.3906/sag-1508-91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Background/aim: This study aimed to investigate the expression of chemokine receptor 4 (CXCR-4) and cyclooxygenase-2 (COX-2) in the epithelium and stroma of pterygium tissue in comparison with healthy conjunctiva. Materials and methods: The expression of CXCR4 and COX-2 was investigated by immunohistochemistry in the epithelium and stroma of the pterygium tissue of 29 eyes and compared with healthy conjunctival tissues. The correlation between CXCR4 and COX-2 expression as well as the correlation of these markers with the area of pterygium were evaluated statistically. Results: COX-2 staining scores were 1.75 ± 0.63 in the epithelium and 1.20 ± 0.62 in the stroma of the pterygium tissue. Mean CXCR-4 staining in the epithelium was 0.069 ± 0.37, whereas it was 5.0 ± 2.84 cells in the stroma. There was almost no staining of COX-2 and CXCR4 in the control samples. There was a strong positive correlation between the expression of CXCR-4 and COX-2 in the stroma of the pterygium. Conclusion: CXCR-4 and COX-2 may play important roles in the pathogenesis of pterygium.
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17
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Wang D, Jiao C, Zhu Y, Liang D, Zao M, Meng X, Gao J, He Y, Liu W, Hou J, Zhong Z, Cheng Z. Activation of CXCL12/CXCR4 renders colorectal cancer cells less sensitive to radiotherapy via up-regulating the expression of survivin. Exp Biol Med (Maywood) 2016; 242:429-435. [PMID: 27798120 DOI: 10.1177/1535370216675068] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Colorectal cancer is the most common malignancy of the gastrointestinal tract. Surgical treatment combined with radiotherapy is the main treatment course for colorectal cancer; nevertheless, radio-resistance is commonly encountered during the treatment course and seriously influences the therapeutic efficacy. We tested the hypothesis that the CXCL12/CXCR4 axis is closely related to radiotherapy sensitivity in colorectal cancer cells. Here, we found that the decrease in cell viability and the increase in cell death induced by radiotherapy were attenuated by CXCL12 treatment, and the inhibition of CXCR4 promoted colorectal cancer cells to be more sensitive to radiotherapy. We also examined the critical roles of CXCL12/CXCR4 in cell survival and found that radiotherapy induced Bax expression and facilitated the activity of caspase-3 and caspase-9, which were reversed by CXCL12 treatment. Cell apoptosis was enhanced by the inhibition of CXCR4 under radiotherapy conditions. Furthermore, treatment with CXCL12 resulted in an increased expression of survivin, and the inhibitory roles of CXCL12 in radiotherapy-induced apoptosis were mitigated by survivin knockdown. These results indicate that CXCL12/CXCR4 protects colorectal cancer cells against radiotherapy via survivin, implying an important underlying mechanism of resistance to radiotherapy during colorectal cancer therapy.
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Affiliation(s)
- Dawei Wang
- 1 Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, P.R. China
| | - Chengbin Jiao
- 2 Department of General Surgery, the First Affiliated Hospital of Jiamusi University, Jiamusi 154002, P.R. China
| | - Yanli Zhu
- 2 Department of General Surgery, the First Affiliated Hospital of Jiamusi University, Jiamusi 154002, P.R. China
| | - Deshen Liang
- 1 Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, P.R. China
| | - Ming Zao
- 1 Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, P.R. China
| | - Xiangyu Meng
- 1 Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, P.R. China
| | - Jianwei Gao
- 1 Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, P.R. China
| | - Yunlong He
- 2 Department of General Surgery, the First Affiliated Hospital of Jiamusi University, Jiamusi 154002, P.R. China
| | - Weixin Liu
- 2 Department of General Surgery, the First Affiliated Hospital of Jiamusi University, Jiamusi 154002, P.R. China
| | - Jie Hou
- 2 Department of General Surgery, the First Affiliated Hospital of Jiamusi University, Jiamusi 154002, P.R. China
| | - Zhaohua Zhong
- 3 Department of Microbiology, Harbin Medical University, Nangang, Harbin 150081, P.R. China
| | - Zhuoxin Cheng
- 1 Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, P.R. China.,2 Department of General Surgery, the First Affiliated Hospital of Jiamusi University, Jiamusi 154002, P.R. China
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18
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G9a/RelB regulates self-renewal and function of colon-cancer-initiating cells by silencing Let-7b and activating the K-RAS/β-catenin pathway. Nat Cell Biol 2016; 18:993-1005. [PMID: 27525719 DOI: 10.1038/ncb3395] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 07/05/2016] [Indexed: 12/18/2022]
Abstract
Epigenetic reprogramming has been associated with the functional plasticity of cancer-initiating cells (CICs); however, the regulatory pathway has yet to be elucidated. A siRNA screen targeting known epigenetic genes revealed that G9a profoundly impairs the chemo-resistance, self-renewal and metastasis of CICs obtained from patients with colorectal cancer (CRC). Patients with elevated G9a were shown to face a high risk of relapse and poor survival rates. From a mechanistic perspective, G9a binds with and stabilizes RelB, thereby recruiting DNA methyltransferase 3 on the Let-7b promoter and repressing its expression. This leads to the activation of the K-RAS/β-catenin pathway and regulates self-renewal and function of CICs. These findings indicate that the G9a/RelB/Let-7b axis acts as a critical regulator in the maintenance of CIC phenotypes and is strongly associated with negative clinical outcomes. Thus, these findings may have diagnostic as well as therapeutic implications for the treatment of chemotherapy-resistant or metastatic CRC.
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19
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Abstract
The human body combats infection and promotes wound healing through the remarkable process of inflammation. Inflammation is characterized by the recruitment of stromal cell activity including recruitment of immune cells and induction of angiogenesis. These cellular processes are regulated by a class of soluble molecules called cytokines. Based on function, cell target, and structure, cytokines are subdivided into several classes including: interleukins, chemokines, and lymphokines. While cytokines regulate normal physiological processes, chronic deregulation of cytokine expression and activity contributes to cancer in many ways. Gene polymorphisms of all types of cytokines are associated with risk of disease development. Deregulation RNA and protein expression of interleukins, chemokines, and lymphokines have been detected in many solid tumors and hematopoetic malignancies, correlating with poor patient prognosis. The current body of literature suggests that in some tumor types, interleukins and chemokines work against the human body by signaling to cancer cells and remodeling the local microenvironment to support the growth, survival, and invasion of primary tumors and enhance metastatic colonization. Some lymphokines are downregulated to suppress tumor progression by enhancing cytotoxic T cell activity and inhibiting tumor cell survival. In this review, we will describe the structure/function of several cytokine families and review our current understanding on the roles and mechanisms of cytokines in tumor progression. In addition, we will also discuss strategies for exploiting the expression and activity of cytokines in therapeutic intervention.
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Affiliation(s)
- M Yao
- University of Kansas Medical Center, Kansas City, KS, United States
| | - G Brummer
- University of Kansas Medical Center, Kansas City, KS, United States
| | - D Acevedo
- University of Kansas Medical Center, Kansas City, KS, United States
| | - N Cheng
- University of Kansas Medical Center, Kansas City, KS, United States.
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20
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Choi WT, Yang Y, Xu Y, An J. Targeting chemokine receptor CXCR4 for treatment of HIV-1 infection, tumor progression, and metastasis. Curr Top Med Chem 2016; 14:1574-89. [PMID: 25159167 DOI: 10.2174/1568026614666140827143541] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 05/30/2014] [Accepted: 06/06/2014] [Indexed: 12/17/2022]
Abstract
The chemokine receptor CXCR4 is required for the entry of human immunodeficiency virus type 1 (HIV-1) into target cells and for the development and dissemination of various types of cancers, including gastrointestinal, cutaneous, head and neck, pulmonary, gynecological, genitourinary, neurological, and hematological malignancies. The T-cell (T)-tropic HIV-1 strains use CXCR4 as the entry coreceptor; consequently, multiple CXCR4 antagonistic inhibitors have been developed for the treatment of acquired immune deficiency syndrome (AIDS). However, other potential applications of CXCR4 antagonists have become apparent since its discovery in 1996. In fact, increasing evidence demonstrates that epithelial and hematopoietic tumor cells exploit the interaction between CXCR4 and its natural ligand, stromal cellderived factor (SDF)-1α, which normally regulates leukocyte migration. The CXCR4 and/or SDF-1α expression patterns in tumor cells also determine the sites of metastatic spread. In addition, the activation of CXCR4 by SDF-1α promotes invasion and proliferation of tumor cells, enhances tumor-associated neoangiogenesis, and assists in the degradation of the extracellular matrix and basement membrane. As such, the evaluation of CXCR4 and/or SDF-1α expression levels has a significant prognostic value in various types of malignancies. Several therapeutic challenges remain to be overcome before the use of CXCR4 inhibitors can be translated into clinical practice, but promising preclinical data demonstrate that CXCR4 antagonists can mobilize tumor cells from their protective microenvironments, interfere with their metastatic and tumorigenic potentials, and/or make tumor cells more susceptible to chemotherapy.
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Affiliation(s)
| | | | | | - Jing An
- Department of Pharmacology, State University of New York, Upstate Medical University, 750 East Adams Street, Syracuse, NY 13210, USA.
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21
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Dermal fibroblast expression of stromal cell-derived factor-1 (SDF-1) promotes epidermal keratinocyte proliferation in normal and diseased skin. Protein Cell 2015; 6:890-903. [PMID: 26296527 PMCID: PMC4656211 DOI: 10.1007/s13238-015-0198-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 07/16/2015] [Indexed: 01/24/2023] Open
Abstract
Stromal cells provide a crucial microenvironment for overlying epithelium. Here we investigated the expression and function of a stromal cell-specific protein, stromal cell-derived factor-1 (SDF-1), in normal human skin and in the tissues of diseased skin. Immunohistology and laser capture microdissection (LCM)-coupled quantitative real-time RT-PCR revealed that SDF-1 is constitutively and predominantly expressed in dermal stromal cells in normal human skin in vivo. To our surprise, an extremely high level of SDF-1 transcription was observed in the dermis of normal human skin in vivo, evidenced by much higher mRNA expression level than type I collagen, the most abundant and highly expressed protein in human skin. SDF-1 was also upregulated in the tissues of many human skin disorders including psoriasis, basal cell carcinoma (BCC), and squamous cell carcinoma (SCC). Double immunostaining for SDF-1 and HSP47 (heat shock protein 47), a marker of fibroblasts, revealed that fibroblasts were the major source of stroma-cell-derived SDF-1 in both normal and diseased skin. Functionally, SDF-1 activates the ERK (extracellular-signal-regulated kinases) pathway and functions as a mitogen to stimulate epidermal keratinocyte proliferation. Both overexpression of SDF-1 in dermal fibroblasts and treatment with rhSDF-1 to the skin equivalent cultures significantly increased the number of keratinocyte layers and epidermal thickness. Conversely, the stimulative function of SDF-1 on keratinocyte proliferation was nearly completely eliminated by interfering with CXCR4, a specific receptor of SDF-1, or by knock-down of SDF-1 in fibroblasts. Our data reveal that extremely high levels of SDF-1 provide a crucial microenvironment for epidermal keratinocyte proliferation in both physiologic and pathologic skin conditions.
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Guo F, Wang Y, Liu J, Mok SC, Xue F, Zhang W. CXCL12/CXCR4: a symbiotic bridge linking cancer cells and their stromal neighbors in oncogenic communication networks. Oncogene 2015; 35:816-26. [DOI: 10.1038/onc.2015.139] [Citation(s) in RCA: 254] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 03/28/2015] [Accepted: 03/30/2015] [Indexed: 02/07/2023]
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Penzo M, Habiel DM, Ramadass M, Kew RR, Marcu KB. Cell migration to CXCL12 requires simultaneous IKKα and IKKβ-dependent NF-κB signaling. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:1796-1804. [PMID: 24747690 DOI: 10.1016/j.bbamcr.2014.04.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 04/08/2014] [Accepted: 04/10/2014] [Indexed: 12/30/2022]
Abstract
CXCL12 and its unique receptor CXCR4, is critical for the homing of a variety of cell lineages during both development and tissue repair. CXCL12 is particularly important for the recruitment of hemato/lymphopoietic cells to their target organs. In conjunction with the damage-associated alarmin molecule HMGB1, CXCL12 mediates immune effector and stem/progenitor cell migration towards damaged tissues for subsequent repair. Previously, we showed that cell migration to HMGB1 simultaneously requires both IKKβ and IKKα-dependent NF-κB activation. IKKβ-mediated activation maintains sufficient expression of HMGB1's receptor RAGE, while IKKα-dependent NF-κB activation ensures continuous production of CXCL12, which complexes with HMGB1 to engage CXCR4. Here using fibroblasts and primary mature macrophages, we show that IKKβ and IKKα are simultaneously essential for cell migration in response to CXCL12 alone. Non-canonical NF-κB pathway subunits RelB and p52 are also both essential for cell migration towards CXCL12, suggesting that IKKα is required to drive non-canonical NF-κB signaling. Flow cytometric analyses of CXCR4 expression show that IKKβ, but not IKKα, is required to maintain a critical threshold level of this CXCL12 receptor. Time-lapse video microscopy experiments in primary MEFs reveal that IKKα is required both for polarization of cells towards a CXCL12 gradient and to establish a basal level of velocity towards CXCL12. In addition, CXCL12 modestly up-regulates IKKα-dependent p52 nuclear translocation and IKKα-dependent expression of the CXCL12 gene. On the basis of our collective results we posit that IKKα is needed to maintain the basal expression of a critical protein co-factor required for cell migration to CXCL12.
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Affiliation(s)
- Marianna Penzo
- CRBA Laboratory and Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy
- Biochemistry and Cell Biology Dept., Stony Brook University, Stony Brook, New York 11794-5215, USA
| | - David M Habiel
- Molecular and Cellular Biology Graduate Program, Stony Brook University, Stony Brook, NY, 11794 USA
- Department of Pathology, Stony Brook University Medical Center, Stony Brook, New York 11794, USA
| | - Mahalakshmi Ramadass
- Molecular and Cellular Biology Graduate Program, Stony Brook University, Stony Brook, NY, 11794 USA
- Department of Pathology, Stony Brook University Medical Center, Stony Brook, New York 11794, USA
| | - Richard R Kew
- Molecular and Cellular Biology Graduate Program, Stony Brook University, Stony Brook, NY, 11794 USA
- Department of Pathology, Stony Brook University Medical Center, Stony Brook, New York 11794, USA
| | - Kenneth B Marcu
- Biochemistry and Cell Biology Dept., Stony Brook University, Stony Brook, New York 11794-5215, USA
- Molecular and Cellular Biology Graduate Program, Stony Brook University, Stony Brook, NY, 11794 USA
- Department of Pathology, Stony Brook University Medical Center, Stony Brook, New York 11794, USA
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Abstract
In this issue, Takekoshi et al. investigated the role of CXCR4 in IL-23-induced keratinocyte hyperproliferation using an epidermal-specific knockout mouse model and found that CXCR4 limited keratinocyte proliferation. Some reports in the literature support this idea, whereas others contradict it; this disparity may be related to the differential roles of CXCR4 in various cell types or to a recently identified second receptor (CXCR7). Nevertheless, CXCR4 and its ligand SDF-1 have been implicated in skin wound healing, systemic lupus erythematosus, and basal cell carcinoma tumor angiogenesis. Further study is merited.
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Chu CY, Sheen YS, Cha ST, Hu YF, Tan CT, Chiu HC, Chang CC, Chen MW, Kuo ML, Jee SH. Induction of chemokine receptor CXCR4 expression by transforming growth factor-β1 in human basal cell carcinoma cells. J Dermatol Sci 2013; 72:123-33. [PMID: 23856244 DOI: 10.1016/j.jdermsci.2013.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 06/11/2013] [Accepted: 06/12/2013] [Indexed: 01/15/2023]
Abstract
BACKGROUND Higher CXCR4 expression enhances basal cell carcinoma (BCC) invasion and angiogenesis. The underlying mechanism of increased CXCR4 expression in invasive BCC is still not well understood. OBJECTIVE To investigate the mechanisms involved in the regulation of CXCR4 expression in invasive BCC. METHODS We used qRT-PCR, RT-PCR, Western blot, and flow cytometric analyses to examine different CXCR4 levels among the clinical samples, co-cultured BCC cells and BCC cells treated with recombinant transforming growth factor-β1 (TGF-β1) and connective tissue growth factor (CTGF). Immunohistochemical studies were used to demonstrate the correlation between TGF-β1 and CXCR4 expressions. The signal transduction pathway and transcriptional regulation were confirmed by treatments with chemical inhibitors, neutralizing antibodies, or short interfering RNAs, as well as luciferase reporter activity. RESULTS Invasive BCC has higher TGF-β1 and CTGF levels compared to non-invasive BCC. Non-contact dermal fibroblasts co-culture with human BCC cells also increases the expression of CXCR4 in BCC cells. Treatment with recombinant human TGF-β1, but not CTGF, enhanced the CXCR4 levels in time- and dose-dependent manners. The protein level and surface expression of CXCR4 in human BCC cells was increased by TGF-β1 treatment. TGF-β1 was intensely expressed in the surrounding fibroblasts of invasive BCC and was positively correlated with the CXCR4 expression of BCC cells. The transcriptional regulation of CXCR4 by TGF-β1 is mediated by its binding to the TGF-β receptor II and phosphorylation of the extracellular signal-related kinase 1/2 (ERK1/2)-ETS-1 pathway. CONCLUSION TGF-β1 induces upregulation of CXCR4 in human BCC cells by phosphorylation of ERK1/2-ETS-1 pathway.
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Affiliation(s)
- Chia-Yu Chu
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan; Laboratory of Molecular and Cellular Toxicology, Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
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Lee CH, Hwang STY. Pathophysiology of chemokines and chemokine receptors in dermatological science: A focus on psoriasis and cutaneous T-cell lymphoma. DERMATOL SIN 2012. [DOI: 10.1016/j.dsi.2012.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Tung SY, Chang SF, Chou MH, Huang WS, Hsieh YY, Shen CH, Kuo HC, Chen CN. CXC chemokine ligand 12/stromal cell-derived factor-1 regulates cell adhesion in human colon cancer cells by induction of intercellular adhesion molecule-1. J Biomed Sci 2012; 19:91. [PMID: 23098564 PMCID: PMC3488341 DOI: 10.1186/1423-0127-19-91] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 10/22/2012] [Indexed: 02/06/2023] Open
Abstract
Background The CXC chemokine ligand 12 (CXCL12)/stromal cell-derived factor-1 (SDF-1) and CXC receptor 4 (CXCR4) axis is involved in human colorectal cancer (CRC) carcinogenesis and can promote the progression of CRC. Interaction between CRC cells and endothelium is a key event in tumor progression. The aim of this study was to investigate the effect of SDF-1 on the adhesion of CRC cells. Methods Human CRC DLD-1 cells were used to study the effect of SDF-1 on intercellular adhesion molecule-1 (ICAM-1) expression and cell adhesion to endothelium. Results SDF-1 treatment induced adhesion of DLD-1 cells to the endothelium and increased the expression level of the ICAM-1. Inhibition of ICAM-1 by small interfering RNA (siRNA) and neutralizing antibody inhibited SDF-1-induced cell adhesion. By using specific inhibitors and short hairpin RNA (shRNA), we demonstrated that the activation of ERK, JNK and p38 pathways is critical for SDF-1-induced ICAM-1 expression and cell adhesion. Promoter activity and transcription factor ELISA assays showed that SDF-1 increased Sp1-, C/EBP-β- and NF-κB-DNA binding activities in DLD-1 cells. Inhibition of Sp1, C/EBP-β and NF-κB activations by specific siRNA blocked the SDF-1-induced ICAM-1 promoter activity and expression. The effect of SDF-1 on cell adhesion was mediated by the CXCR4. Conclusion Our findings support the hypothesis that ICAM-1 up-regulation stimulated by SDF-1 may play an active role in CRC cell adhesion.
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Affiliation(s)
- Shui-Yi Tung
- Department of Hepato-Gastroenterology, Chang Gung Memorial Hospital, Chiayi, Taiwan
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Li KC, Huang YH, Ho CY, Chu CY, Cha ST, Tsai HH, Ko JY, Chang CC, Tan CT. The role of IL-8 in the SDF-1α/CXCR4-induced angiogenesis of laryngeal and hypopharyngeal squamous cell carcinoma. Oral Oncol 2012; 48:507-15. [DOI: 10.1016/j.oraloncology.2012.01.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 01/09/2012] [Accepted: 01/16/2012] [Indexed: 11/27/2022]
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Cabrera H, Castro J, Grassi HC, Andrades EDJ, López-Rivera SA. The effect of photodynamic therapy on contiguous untreated tumor. Dermatol Surg 2012; 38:1097-9. [PMID: 22471374 DOI: 10.1111/j.1524-4725.2012.02400.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Humberto Cabrera
- CEIF, Instituto Venezolano de Investigaciones Científicas, Mérida, Venezuela.
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Sheng XJ, Zhou YQ, Song QY, Zhou DM, Liu QC. Loss of breast cancer metastasis suppressor 1 promotes ovarian cancer cell metastasis by increasing chemokine receptor 4 expression. Oncol Rep 2011; 27:1011-8. [PMID: 22200669 PMCID: PMC3583538 DOI: 10.3892/or.2011.1596] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Accepted: 12/02/2011] [Indexed: 12/22/2022] Open
Abstract
Breast cancer metastasis suppressor 1 (BRMS1) is a predominantly nuclear protein that differentially regulates the expression of multiple genes, leading to suppression of metastasis without affecting orthotopic tumor growth. It has been demonstrated that BRMS1 may be correlated with advanced ovarian cancer. The aim of this study was to investigate the mechanisms of BRMS1 involvement in ovarian cancer metastasis. We constructed a plasmid containing a short hairpin RNA (shRNA) against BRMS1 and transfected it into the ovarian cancer cell line OVCAR3. Real-time reverse transcription polymerase chain reaction (real-time PCR) and Western blot analyses demonstrated that BRMS1 expression was efficiently downregulated. Stable suppression of BRMS1 significantly enhanced cell adhesion, migration, invasion and angiogenesis. We also found that chemokine receptor 4 (CXCR4) was upregulated at both the mRNA and protein levels. When approaching for the mechanism, we discovered that activation of the nuclear factor-κB (NF-κB) signaling pathway mediated CXCR4 upregulation, as demonstrated by the electrophoretic mobility shift assay (EMSA). Collectively, these results suggest that attenuation of BRMS1 may play a critical role in promoting migration, invasion and angiogenesis of ovarian cancer cells and BRMS1 may regulate the metastatic potential at least in part through upregulation of CXCR4 via NF-κB activation. Restoration of BRMS1 function is thus a potential new strategy for treating human ovarian cancer.
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Affiliation(s)
- Xiu-Jie Sheng
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical College, Guangzhou 510150, PR China.
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Montagner A, Rando G, Degueurce G, Leuenberger N, Michalik L, Wahli W. New insights into the role of PPARs. Prostaglandins Leukot Essent Fatty Acids 2011; 85:235-43. [PMID: 21778043 DOI: 10.1016/j.plefa.2011.04.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Peroxisome proliferator-activated receptors (PPARs) are fatty acid-activated transcription factors belonging to the nuclear hormone receptor family. While PPARs are best known as regulators of energy homeostasis, evidence also has accumulated recently for their involvement in basic cellular functions. We review novel insights into PPAR functions in skin wound healing and liver, with emphasis on PPARβ/δ and PPARα, respectively. Activation of PPARβ/δ expression in response to injury promotes keratinocyte survival, directional sensing, and migration over the wound bed. In addition, interleukin (IL)-1 produced by the keratinocytes activates PPARβ/δ expression in the underlying fibroblasts, which hinders the mitotic activity of keratinocytes via inhibition of IL-1 signaling. Initially, roles were identified for PPARα in fatty acid catabolism. However, PPARα is also involved in downregulating many genes in female mammals. We have elucidated the mechanism of this repression, which requires sumoylation of PPARα. Physiologically, this control confers protection against estrogen-induced intrahepatic cholestasis.
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Affiliation(s)
- Alexandra Montagner
- Center for Integrative Genomics, National Research Center "Frontiers in Genetics", University of Lausanne, Genopode Building, CH-1015 Lausanne, Switzerland
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Chen W, Li Z, Bai L, Lin Y. NF-kappaB in lung cancer, a carcinogenesis mediator and a prevention and therapy target. Front Biosci (Landmark Ed) 2011; 16:1172-85. [PMID: 21196225 DOI: 10.2741/3782] [Citation(s) in RCA: 165] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Lung cancer ranks as the first malignant tumor killer worldwide. Despite the knowledge that carcinogens from tobacco smoke and the environment constitute the main causes of lung cancer, the mechanisms for lung carcinogenesis are still elusive. Cancer development and progression depend on the balance between cell survival and death signals. Common cell survival signaling pathways are activated by carcinogens as well as by inflammatory cytokines, which contribute substantially to cancer development. As a major cell survival signal, nuclear factor-kappaB (NF-kappaB) is involved in multiple steps in carcinogenesis and in cancer cell's resistance to chemo- and radio-therapy. Recent studies with animal models and cell culture systems have established the links between NF-kappaB and lung carcinogenesis, highlighting the significance of targeting NF-kappa signaling pathway for lung cancer treatment and chemoprevention. In this review, we summarize progresses in understanding the NF-kappaB pathway in lung cancer development as well as in modulating NF-kappaB for lung cancer prevention and therapy.
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Affiliation(s)
- Wenshu Chen
- Molecular Biology and Lung Cancer Program, Lovelace Respiratory Research Institute, 2425 Ridgecrest DR SE, Albuquerque, NM 87108, USA
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Adegboyega PA, Rodriguez S, McLarty J. Stromal expression of actin is a marker of aggressiveness in basal cell carcinoma. Hum Pathol 2010; 41:1128-37. [PMID: 20381122 DOI: 10.1016/j.humpath.2009.12.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 12/18/2009] [Accepted: 12/23/2009] [Indexed: 01/18/2023]
Abstract
Basal cell carcinoma is a very common malignant skin tumor that rarely metastasizes but is often locally aggressive. In a number of studies conducted by different investigators, Bcl2, beta-catenin, cyclin D1, hMSH2, and alpha-smooth muscle actin have been reported to have potential for predicting basal cell carcinoma aggressiveness. However, these reports were inconclusive and sometimes contradictory. We therefore studied the expression and topographic locations (tumor versus stroma) of all these gene products in a group of clinically proven aggressive basal cell carcinomas (n = 30) and randomly selected control cases of nonaggressive basal cell carcinomas (n = 33). The results were subjected to statistical analysis with Mann-Whitney test and logistic regression. The accuracy of the resulting significant discriminating criteria was further tested using the omnibus tests of model coefficients. With multivariate analysis, differential expression of Bcl-2, beta-catenin, and cyclin D1 was not significantly different between aggressive and nonaggressive tumors. hMSH2 expression was up-regulated in the aggressive tumors (P = .005). Alpha-smooth muscle actin was expressed by tumor cells in both study groups, but stromal expression of alpha-smooth muscle actin was restricted to the aggressive tumors and highly predictive of aggressive behavior (P < .001; accuracy, 87%). Logistic regression combining the expression of alpha-smooth muscle actin and hMSH2 yielded a predictive model with 97% accuracy (P < .001). These data show conclusively that aggressive basal cell carcinomas express alpha-smooth muscle actin in the stroma, whereas nonaggressive basal cell carcinomas express alpha-smooth muscle actin in the tumor cells, and that stromal expression of alpha-smooth muscle actin is an accurate, reliable, and easy to use marker of aggressiveness in basal cell carcinomas and can be used in clinical practice for surgical therapeutic decisions.
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Affiliation(s)
- Patrick A Adegboyega
- Department of Pathology, Louisiana State University Health Sciences Center, Shreveport, LA 71130, USA.
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Tafani M, Russo A, Di Vito M, Sale P, Pellegrini L, Schito L, Gentileschi S, Bracaglia R, Marandino F, Garaci E, Russo MA. Up-regulation of pro-inflammatory genes as adaptation to hypoxia in MCF-7 cells and in human mammary invasive carcinoma microenvironment. Cancer Sci 2010; 101:1014-23. [PMID: 20151982 PMCID: PMC11159242 DOI: 10.1111/j.1349-7006.2010.01493.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The role of tumor cells in synthesizing pro-inflammatory molecules is still controversial. Here we report that hypoxic treatment of the MCF-7 human mammary adenocarcinoma cell line induced activation of hypoxia-inducible factor 1alpha (HIF-1alpha) and nuclear factor-kappa B (NF-kappaB). Importantly, hypoxia regulated expression of alarmin receptors such as the receptor for advanced glycation end products (RAGE) and the purinoreceptor (P2X7R), and up-regulated inflammatory response (IR) genes such as the inducible enzymes nitric oxide synthase (NOS2), cycloxygenase (COX2), and the acute-phase protein pentraxin-3 (PTX3). Hypoxia also stimulated chemokine (C-X-C motif) receptor 4 (CXCR4) mRNA synthesis. In fact, the CXCR4 ligand stromal-derived factor-1alpha (SDF-1alpha) increased invasion and migration of hypoxic MCF-7 cells. Inhibition of HIF-1alpha by chetomin and NF-kappaB by parthenolide reduced mRNA and protein expression of the studied molecules and prevented invasion of hypoxic MCF-7 cells. Moreover, solid invasive mammary tumor microenvironment was analyzed after laser-capture microdissection (LCMD) comparing tumor versus host normal tissue. Nuclear translocation of HIF-1alpha and NF-kappaB and up-regulation of IR, CXCR4, estrogen receptor alpha (ERalpha), and epithelial growth factor receptor (EGFR) was observed in tumor but not in host normal tissue in the absence of a local inflammatory leukocyte infiltrate. We conclude that under hypoxic conditions MCF-7 cells acquire a pro-inflammatory phenotype, and that solid human mammary carcinoma evidenced a similar activation of HIF-1alpha, NF-kappaB, and IR genes in malignant tumor cells as compared to the normal host tissues. We suggest a role for IR activation in the malignant progression of transformed cells.
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Affiliation(s)
- Marco Tafani
- Department of Cellular and Molecular Pathology, IRCCS San Raffaele Pisana, Rome, Italy
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Lin Y, Bai L, Chen W, Xu S. The NF-kappaB activation pathways, emerging molecular targets for cancer prevention and therapy. Expert Opin Ther Targets 2010; 14:45-55. [PMID: 20001209 DOI: 10.1517/14728220903431069] [Citation(s) in RCA: 284] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
IMPORTANCE OF THE FIELD Nuclear factor kappa B (NF-kappaB) is activated by a variety of cancer-promoting agents. The reciprocal activation between NF-kappaB and inflammatory cytokines makes NF-kappaB important for inflammation-associated cancer development. Both the constitutive and anticancer therapeutic-induced NF-kappaB activation blunts the anticancer activities of the therapy. Elucidating the roles of NF-kappaB in cancer facilitates developing approaches for cancer prevention and therapy. AREAS COVERED IN THIS REVIEW By searching PubMed, we summarize the progress of studies on NF-kappaB in carcinogenesis and cancer cells' drug resistance in recent 10 years. WHAT THE READER WILL GAIN The mechanisms by which NF-kappaB activation pathways are activated; the roles and mechanisms of NF-kappaB in cell survival and proliferation, and in carcinogenesis and cancer cells' response to therapy; recent development of NF-kappaB-modulating means and their application in cancer prevention and therapy. TAKE HOME MESSAGE NF-kappaB is involved in cancer development, modulating NF-kappaB activation pathways has important implications in cancer prevention and therapy. Due to the complexity of NF-kappaB roles in different cancers, careful evaluation of NF-kappaB's in each cancer type is crucial in this regard. More cancer cell-specific NF-kappaB inhibiting means are desired for improving anticancer efficacy and reducing systemic toxicity.
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Affiliation(s)
- Yong Lin
- Molecular Biology and Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM 87108, USA.
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Alvarez S, Blanco A, Fresno M, Muñoz-Fernández MA. Nuclear factor-kappaB activation regulates cyclooxygenase-2 induction in human astrocytes in response to CXCL12: role in neuronal toxicity. J Neurochem 2010; 113:772-83. [PMID: 20180883 DOI: 10.1111/j.1471-4159.2010.06646.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Neurodegenerative and neuroinflammatory disorders are commonly associated with local chemokine release. In other way, emerging data indicate that the prostaglandin E2 (PGE(2)), one of the major prostaglandins produced in the brain, play a central role in several pathological diseases. In this study, we investigated the relationship between CXCL12, cyclooxygenase (COX)-2 and PGE(2) in human brain cells. CXCL12 induced COX-2 and secretion of PGE(2) in a dose-dependent manner in human astrocytes. This induction was abolished by treatment with pertussis toxin and AMD3100, confirming the role of CXCR4 signaling. The nuclear factor-kappaB involvement was confirmed by using pyrrolidine dithiocarbamate, and with transient transfection assays. Over-expression of inhibitory proteins of nuclear factor-kappaB abrogated COX-2 induction, and CXCL12 induced p65/relA translocation. Culture supernatants from CXCL12-treated astrocytes reduced viability of neuroblastoma cells, and COX inhibitors abrogated this toxicity. Therefore, the relationship between chemokines and PGs could differentially influence the pathogenic network responsible for neurodegeneration.
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Affiliation(s)
- Susana Alvarez
- Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain
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Martin SK, Diamond P, Williams SA, To LB, Peet DJ, Fujii N, Gronthos S, Harris AL, Zannettino ACW. Hypoxia-inducible factor-2 is a novel regulator of aberrant CXCL12 expression in multiple myeloma plasma cells. Haematologica 2009; 95:776-84. [PMID: 20015878 DOI: 10.3324/haematol.2009.015628] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Multiple myeloma is an incurable malignancy of bone marrow plasma cells. Progression of multiple myeloma is accompanied by an increase in bone marrow angiogenesis. Studies from our laboratory suggest a role for the CXCL12 chemokine in this process, with circulating levels of CXCL12 correlating with bone marrow angiogenesis in patients with multiple myeloma. While the mechanisms responsible for aberrant plasma cell expression of CXCL12 remain to be determined, studies in other systems suggest a role for hypoxia and hypoxia-inducible transcription factors. DESIGN AND METHODS The expression of hypoxia-inducible factor protein was examined in patients' bone marrow biopsy specimens using immunohistochemistry. The hypoxic regulation of CXCL12 was examined in multiple myeloma plasma cell lines using polymerase chain reaction and western blotting. The role of hypoxia-inducible factors-1 and -2 in the regulation of CXCL12 expression was examined using over-expression and short hairpin RNA knockdown constructs, electrophoretic mobility shift assays and chromatin immunoprecipitation. The contribution of CXCL12 to hypoxia-induced angiogenesis was examined in vivo using a subcutaneous murine model of neovascularization. RESULTS Strong hypoxia-inducible factor-2 protein expression was detected in CD138(+) multiple myeloma plasma cells in patients' biopsy specimens. Prolonged exposure to hypoxia strongly up-regulated CXCL12 expression in multiple myeloma plasma cells and hypoxia-inducible factor-2 was found to play a key role in this response. Promoter analyses revealed increased hypoxia-inducible factor-2 binding to the CXCL12 promoter under hypoxic conditions. Over-expression of hypoxia-inducible factor in multiple myeloma plasma cells strongly induced in vivo angiogenesis, and administration of a CXCL12 antagonist decreased hypoxia-inducible factor-induced angiogenesis. CONCLUSIONS Hypoxia-inducible factor-2 is a newly identified regulator of CXCL12 expression in multiple myeloma plasma cells and a major contributor to multiple myeloma plasma cell-induced angiogenesis. Targeting the hypoxic niche, and more specifically hypoxia-inducible factor-2, may represent a viable strategy to inhibit angiogenesis in multiple myeloma and progression of this disease.
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Affiliation(s)
- Sally K Martin
- Myeloma Research Program, Division of Haematology, Centre for Cancer Biology-SA Pathology and University of Adelaide, Australia
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Paland N, Kamer I, Kogan-Sakin I, Madar S, Goldfinger N, Rotter V. Differential influence of normal and cancer-associated fibroblasts on the growth of human epithelial cells in an in vitro cocultivation model of prostate cancer. Mol Cancer Res 2009; 7:1212-23. [PMID: 19671672 DOI: 10.1158/1541-7786.mcr-09-0073] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The prostate is composed of a number of different cell populations. The interaction between them is crucial for the development and proper function of the prostate. However, the effect of the molecular cross talk between these cells in the course of carcinogenesis is still unclear. Employing an approach wherein immortalized epithelial cells and immortalized human fibroblasts were cocultured, we show that normal associated fibroblasts (NAF) and cancer-associated fibroblasts (CAF) differentially influenced the growth and proliferation of immortalized human prostate epithelial cells. Whereas NAFs inhibited the growth of immortalized epithelial cells but promoted the growth of metastatic PC-3 cells, CAFs promoted the growth of immortalized epithelial cells but not of PC-3. Cytokine arrays revealed that NAFs secreted higher levels of tumor necrosis factor-alpha compared with CAFs whereas CAFs secreted higher levels of interleukin-6 (IL-6) compared with NAFs. The growth-inhibiting effects of NAFs were counteracted by the addition of IL-6, and the growth-promoting effects exerted by the CAFs were counteracted by tumor necrosis factor-alpha. Furthermore, CAFs induced the migration of endothelial cells in an IL-6-dependent manner. Here, we show that normal fibroblast cells have a protective function at very early stages of carcinogenesis by preventing immortalized epithelial cells from proliferating and forming new blood vessels whereas CAFs aid immortalized epithelial cells to further develop.
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Affiliation(s)
- Nicole Paland
- Department of Molecular Cell Biology, Weizmann Institute of Science, Herzl, 1, Rehovot 76303, Israel
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Anasagasti-Angulo L, Garcia-Vega Y, Barcelona-Perez S, Lopez-Saura P, Bello-Rivero I. Treatment of advanced, recurrent, resistant to previous treatments basal and squamous cell skin carcinomas with a synergistic formulation of interferons. Open, prospective study. BMC Cancer 2009; 9:262. [PMID: 19643007 PMCID: PMC2724551 DOI: 10.1186/1471-2407-9-262] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Accepted: 07/30/2009] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Aggressive non-melanoma skin cancer (deeply infiltrating, recurrent, and morphea form lesions) are therapeutically challenging because they require considerable tissue loss and may demand radical disfiguring surgery. Interferons (IFN) may provide a non-surgical approach to the management of these tumors. The aim of this work was to evaluate the effect of a formulation containing IFNs-alpha and -gamma in synergistic proportions on patients with recurrent, advanced basal cell (BCC) or squamous cell skin carcinomas (SCSC). METHODS Patients with extensive, recurrent, resistant to other procedures BCC or SCSC received the IFN formulation peri- and intralesionally, three times per week for 3 weeks. They had been previously treated with surgery and/or radiotherapy or chemotherapy. Thirteen weeks after the end of treatment, the original lesion sites were examined for histological evidence of remaining tumor. RESULTS Sixteen elder (median 70 years-old) patients were included. They beared 12 BCC and 4 SCSC ranging from 1.5 to 12.5 cm in the longest dimension. At the end of treatment 47% CR (complete tumor elimination), 40% PR (>30% tumor reduction), and 13% stable disease were obtained. None of the patients relapsed during the treatment period. The median duration of the response was 38 months. Only one patient with complete response had relapsed until today. Principal adverse reactions were influenza-like symptoms well known to occur with interferon therapy, which were well tolerated. CONCLUSION The peri- and intralesional combination of IFNs-alpha and -gamma was safe and showed effect for the treatment of advanced, recurrent and resistant to previous treatments of BCC and SCSC in elder patients. This is the first report of such treatment in patients with advance non-melanoma skin cancer. The encouraging result justifies further confirmatory trials. TRIAL REGISTRATION Current Controlled Trials RPCEC00000052.
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Dailey MM, Hait C, Holt PA, Maguire JM, Meier JB, Miller MC, Petraccone L, Trent JO. Structure-based drug design: from nucleic acid to membrane protein targets. Exp Mol Pathol 2009; 86:141-50. [PMID: 19454265 PMCID: PMC3143464 DOI: 10.1016/j.yexmp.2009.01.011] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2008] [Indexed: 01/08/2023]
Abstract
The in silico methods for drug discovery are becoming increasingly powerful and useful. That, in combination with increasing computer processor power, in our case using a novel distributed computing grid, has enabled us to greatly enhance our virtual screening efforts. Herein we review some of these efforts using both receptor and ligand-based virtual screening, with the goal of finding new anti-cancer agents. In particular, nucleic acids are a neglected set of targets, especially the different morphologies of duplex, triplex, and quadruplex DNA, many of which have increasing biological relevance. We also review examples of molecular modeling to understand receptors and using virtual screening against G-protein coupled receptor membrane proteins.
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Affiliation(s)
- Magdalena M Dailey
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA
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