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Aleksandrova E, Mindov I, Petrov B, Dimitrova I, Petrov N, Ananiev J, Vlaykova T, Valkanov S. Role of Elevated Serum TGF-β1 and the Common Promoter TGFB1-509C/T Polymorphism in the Development and Progression of Primary Glial Tumors and Brain Metastases. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:146. [PMID: 38256406 PMCID: PMC10819302 DOI: 10.3390/medicina60010146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
Background and Objectives: The role of transforming growth factor-beta1 (TGF-β1) has been widely studied in the context of carcinogenesis. It has been involved in the pathogenesis of primary brain tumors or brain metastases due to its pleiotropic effects on immune regulation and tissue homeostasis. In line with recent findings, the aim of the current study was to examine the role of circulating TGF-β1 and the -509C/T functional polymorphism (rs1800469) in the TGFB1 gene promoter in the susceptibility and progression of primary brain tumors and brain metastases among patients from the Bulgarian population. Materials and Methods: Cases with a confirmed diagnosis were genotyped by the polymerase chain reaction-restriction fragment length polymorphism assay (PCR-RFLP). Serum TGF-β1 levels were determined by ELISA. Immunohistochemical evaluation of the expression of TGF-β1 and the TGF-β1 receptor-type II was conducted. Results: We observed that TGF-β1 serum levels correlate with the genotype and are sex-related. TGF-β1 serum levels were significantly elevated in patients compared to controls. Additionally, the T/T-genotype determined higher circulating levels of the cytokine. The same genotype determined the shorter median survival after surgery for the patients. The immunohistochemical analysis revealed a statistical tendency: cases expressing TGF-β1 in the cytoplasm had elevated levels of the cytokine in the serum compared to the negative cases. Conclusions: Overall, our results indicate a negative effect of the T-allele on the predisposition and prognosis of brain malignancies, and the genetically determined higher TGF-β1 serum levels might contribute to the worse prognosis and metastatic capacity of brain malignancies.
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Affiliation(s)
- Elina Aleksandrova
- Department of Medical Chemistry and Biochemistry, Medical Faculty, Trakia University, 6000 Stara Zagora, Bulgaria; (N.P.)
| | - Ivan Mindov
- Department of Surgery, Neurosurgery, Urology and Anaesthesiology, Medical Faculty, Trakia University, 6000 Stara Zagora, Bulgaria (B.P.); (I.D.); (S.V.)
| | - Bozhidar Petrov
- Department of Surgery, Neurosurgery, Urology and Anaesthesiology, Medical Faculty, Trakia University, 6000 Stara Zagora, Bulgaria (B.P.); (I.D.); (S.V.)
| | - Ivelina Dimitrova
- Department of Surgery, Neurosurgery, Urology and Anaesthesiology, Medical Faculty, Trakia University, 6000 Stara Zagora, Bulgaria (B.P.); (I.D.); (S.V.)
| | - Nikolay Petrov
- Department of Medical Chemistry and Biochemistry, Medical Faculty, Trakia University, 6000 Stara Zagora, Bulgaria; (N.P.)
| | - Julian Ananiev
- Department of General and Clinical Pathology, Forensic Medicine, Deontology and Dermatovenerology, Medical Faculty, Trakia University, 6000 Stara Zagora, Bulgaria
| | - Tatyana Vlaykova
- Department of Medical Chemistry and Biochemistry, Medical Faculty, Trakia University, 6000 Stara Zagora, Bulgaria; (N.P.)
| | - Stefan Valkanov
- Department of Surgery, Neurosurgery, Urology and Anaesthesiology, Medical Faculty, Trakia University, 6000 Stara Zagora, Bulgaria (B.P.); (I.D.); (S.V.)
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Binabaj MM, Asgharzadeh F, Rahmani F, Al-Asady AM, Hashemzehi M, Soleimani A, Avan A, Mehraban S, Ghorbani E, Ryzhikov M, Khazaei M, Hassanian SM. Vactosertib potently improves anti-tumor properties of 5-FU for colon cancer. Daru 2023; 31:193-203. [PMID: 37740873 PMCID: PMC10624787 DOI: 10.1007/s40199-023-00474-y] [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: 03/24/2023] [Accepted: 07/22/2023] [Indexed: 09/25/2023] Open
Abstract
BACKGROUND Several studies have shown that the TGF-β signaling pathway plays a critical role in colorectal cancer (CRC) pathogenesis. The aim of the current study is to investigate the therapeutic potential of Vactosertib (EW-7197), a selective inhibitor of TGF-β receptor type I, either alone or in combination with the standard first-line chemotherapeutic treatment, 5-Fluorouracil (5-FU), in CRC progression in both cellular and animal models. METHODS Real-Time PCR, Zymography, enzyme-linked immunosorbent assay (ELISA), Hematoxylin and Eosin (H&E) tissue staining, and Flow cytometry techniques were applied to determine the anti-tumor properties of this novel TGF-β inhibitor in in vitro (CT-26 cell line) and in vivo (inbred BALB/C mice) samples. RESULTS Our findings showed that Vactosertib decreased cell proliferation and induced spheroid shrinkage. Moreover, this inhibitor suppressed the cell cycle and its administration either alone or in combination with 5-FU induced apoptosis by regulating the expression of p53 and BAX proteins. It also improved 5-FU anti-cancer effects by decreasing the tumor volume and weight, increasing tumor necrosis, and regulating tumor fibrosis and inflammation in an animal model. Vactosertib also enhanced the inhibitory effect of 5-FU on invasive behavior of CRC cells by upregulating the expression of E-cadherin and inhibiting MMP-9 enzymatic activity. CONCLUSION This study demonstrating the potent anti-tumor effects of Vactosertib against CRC progression. Our results clearly suggest that this inhibitor could be a promising agent reducing CRC tumor progression when administered either alone or in combination with standard treatment in CRC patients.
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Affiliation(s)
- Maryam Moradi Binabaj
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fereshteh Asgharzadeh
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzad Rahmani
- Kashmar School of Nursing, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abdulridha Mohammed Al-Asady
- Department of Medical Sciences, Faculty of Nursing, University of Warith Al-Anbiyaa, Kerbala, Iraq
- Department of Pharmacology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Sciences, Faculty of Dentistry, University of Kerbala, Kerbala, Iraq
| | | | - Atena Soleimani
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Avan
- Department of Human Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saeedeh Mehraban
- Immunology Research Center, Inflammation and Inflammatory Diseases Division, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Elnaz Ghorbani
- Department of Medical Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Majid Khazaei
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Seyed Mahdi Hassanian
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Wiley MB, Bauer J, Mehrotra K, Zessner-Spitzenberg J, Kolics Z, Cheng W, Castellanos K, Nash MG, Gui X, Kone L, Maker AV, Qiao G, Reddi D, Church DN, Kerr RS, Kerr DJ, Grippo PJ, Jung B. Non-Canonical Activin A Signaling Stimulates Context-Dependent and Cellular-Specific Outcomes in CRC to Promote Tumor Cell Migration and Immune Tolerance. Cancers (Basel) 2023; 15:3003. [PMID: 37296966 PMCID: PMC10252122 DOI: 10.3390/cancers15113003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/27/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
We have shown that activin A (activin), a TGF-β superfamily member, has pro-metastatic effects in colorectal cancer (CRC). In lung cancer, activin activates pro-metastatic pathways to enhance tumor cell survival and migration while augmenting CD4+ to CD8+ communications to promote cytotoxicity. Here, we hypothesized that activin exerts cell-specific effects in the tumor microenvironment (TME) of CRC to promote anti-tumoral activity of immune cells and the pro-metastatic behavior of tumor cells in a cell-specific and context-dependent manner. We generated an Smad4 epithelial cell specific knockout (Smad4-/-) which was crossed with TS4-Cre mice to identify SMAD-specific changes in CRC. We also performed IHC and digital spatial profiling (DSP) of tissue microarrays (TMAs) obtained from 1055 stage II and III CRC patients in the QUASAR 2 clinical trial. We transfected the CRC cells to reduce their activin production and injected them into mice with intermittent tumor measurements to determine how cancer-derived activin alters tumor growth in vivo. In vivo, Smad4-/- mice displayed elevated colonic activin and pAKT expression and increased mortality. IHC analysis of the TMA samples revealed increased activin was required for TGF-β-associated improved outcomes in CRC. DSP analysis identified that activin co-localization in the stroma was coupled with increases in T-cell exhaustion markers, activation markers of antigen presenting cells (APCs), and effectors of the PI3K/AKT pathway. Activin-stimulated PI3K-dependent CRC transwell migration, and the in vivo loss of activin lead to smaller CRC tumors. Taken together, activin is a targetable, highly context-dependent molecule with effects on CRC growth, migration, and TME immune plasticity.
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Affiliation(s)
- Mark B. Wiley
- Department of Medicine, University of Washington, Seattle, WA 98195, USA; (M.B.W.); (K.M.)
| | - Jessica Bauer
- Department of Medicine, University of Washington, Seattle, WA 98195, USA; (M.B.W.); (K.M.)
| | - Kunaal Mehrotra
- Department of Medicine, University of Washington, Seattle, WA 98195, USA; (M.B.W.); (K.M.)
| | - Jasmin Zessner-Spitzenberg
- Clinical Department for Gastroenterology and Hepatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Zoe Kolics
- Department of Medicine, University of Washington, Seattle, WA 98195, USA; (M.B.W.); (K.M.)
| | - Wenxuan Cheng
- Department of Medicine, University of Washington, Seattle, WA 98195, USA; (M.B.W.); (K.M.)
| | - Karla Castellanos
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Michael G. Nash
- Department of Biostatistics, University of Washington, Seattle, WA 98195, USA
| | - Xianyong Gui
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - Lyonell Kone
- Department of Surgery, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Ajay V. Maker
- Department of Surgery, University of California-San Francisco, San Francisco, CA 94115, USA
| | - Guilin Qiao
- Department of Surgery, University of California-San Francisco, San Francisco, CA 94115, USA
| | - Deepti Reddi
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - David N. Church
- Nuffield Department of Medicine, University of Oxford, Oxford OX1 4BH, UK
- NIHR Oxford Comprehensive Biomedical Research Center, Oxford University Hospitals NHS Foundation Trust, University of Oxford, Oxford OX1 4BH, UK
| | - Rachel S. Kerr
- Department of Oncology, University of Oxford, Oxford OX1 4BH, UK
| | - David J. Kerr
- Radcliffe Department of Medicine, University of Oxford, Oxford OX1 4BH, UK
| | - Paul J. Grippo
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Barbara Jung
- Department of Medicine, University of Washington, Seattle, WA 98195, USA; (M.B.W.); (K.M.)
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Principe DR, Cataneo JL, Dorman MJ, Koch RM, Studniarek A, Rana A, Gantt G, Nordenstam J. Serum Depletion of Complement Component 5a Is Associated With Increased Inflammation and Poor Clinical Outcomes in Patients With Perianal Fistulas. Dis Colon Rectum 2023; 66:288-298. [PMID: 35724247 DOI: 10.1097/dcr.0000000000002378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Persistent disease is a significant issue in the management of perianal fistulas, with up to 50% of patients requiring additional treatment after surgery. OBJECTIVE This study aimed to identify a novel prognostic modality in hopes of risk-stratifying patients for persistent disease following corrective surgery. DESIGN This was a retrospective study based on prospectively collected data using a combination of histopathology, high-throughput proteomic arrays, and ELISA-based methods. SETTINGS This study used data obtained from patients who underwent corrective surgery for perianal fistulas at the University of Illinois Hospital between June 2019 and July 2020. PATIENTS A cohort of 22 consecutive patients who had corrective surgery for perianal fistulas were included in this study. The patients were divided into 2 groups: those with resolving fistulas (N = 13) and those with persisting fistulas (N = 9). MAIN OUTCOME MEASURES Nonresolving fistulas were determined by disease representation within 2 months of corrective surgery. RESULTS Serum samples from patients with persistent perianal fistulas displayed a consistent decrease in the expression of complement pathway component C5a compared with either healthy controls or patients with resolving forms of disease. This was paralleled by an increase in the fistula expression of C5a and an associated increase in tissue infiltrating leukocytes and interleukin-1β expression. LIMITATIONS This study was limited by its retrospective design, relatively small sample size, and single-center data analysis. CONCLUSIONS These results suggest that C5a is modestly depleted in patients with nonresolving forms of disease and traffics to the site of tissue damage and inflammation. Accordingly, serum C5a warrants continued investigation as a prognostic biomarker and predictor of recurrence in patients presenting with perianal fistulas. See Video Abstract at http://links.lww.com/DCR/B982 . LA DEPLECIN SRICA DEL COMPONENTE A DEL COMPLEMENTO SE ASOCIA CON UN AUMENTO DE LA INFLAMACIN Y MALOS RESULTADOS CLNICOS EN PACIENTES CON FSTULAS PERIANALES ANTECEDENTES:La persistencia de la enfermedad es un problema significativo en el manejo de las fístulas perianales, presente hasta en el 50 % de los pacientes después de la cirugía y que requieren tratamiento adicional.OBJETIVO:DISEÑO:Se trata de un estudio retrospectivo basado en datos recolectados prospectivamente usando una combinación de histopatología, arreglos proteómicos de alto rendimiento y métodos basados en ELISA.ENTORNO CLÍNICO:Este estudio utilizó datos de pacientes que se sometieron a cirugía correctiva por fístulas perianales en el Hospital de la Universidad de Illinois entre junio de 2019 y julio de 2020.PACIENTES:Se incluyó en este estudio una cohorte de 22 pacientes consecutivos que se sometieron a cirugía correctiva de fístulas perianales. Los pacientes se dividieron en 2 grupos: aquellos con fístulas en resolución (N = 13) y aquellos con fístulas persistentes (N = 9).PRINCIPALES MEDIDAS DE VALORACIÓN:Las fístulas que no se resuelven fueron determinadas por la reaparición de la enfermedad dentro de los 2 meses posteriores a la cirugía correctiva.RESULTADOS:Las muestras de suero de pacientes con fístulas perianales persistentes mostraron una disminución constante en la expresión del componente C5a de la vía del complemento en comparación con controles sanos o pacientes con formas de resolución de la enfermedad. Esto fue paralelo a un aumento en la expresión de C5a en la fístula y un aumento asociado en los leucocitos que se infiltran en el tejido y la expresión de IL-1β.LIMITACIONES:El estudio estuvo limitado por su diseño retrospectivo, tamaño de muestra relativamente pequeño y análisis de datos de un solo centro.CONCLUSIONES:Estos resultados sugieren que C5a se reduce moderadamente en pacientes con formas de enfermedad que no se resuelven y se desplaza al sitio del daño tisular e inflamación. En consecuencia, el C5a sérico justifica una investigación continua como biomarcador pronóstico y predictor de recurrencia en pacientes que presentan fístulas perianales. Consulte Video Resumen en http://links.lww.com/DCR/B982 . (Traducción- Dr. Ingrid Melo ).
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Affiliation(s)
- Daniel R Principe
- Medical Scientist Training Program, University of Illinois College of Medicine, Chicago, Illinois
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - José L Cataneo
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
- University of Illinois College of Medicine, Chicago, Illinois
- University of Illinois, Metropolitan Group Hospitals General Surgery Residency, Advocate Illinois Masonic Hospital, Chicago, Illinois
| | - Matthew J Dorman
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Regina M Koch
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Adam Studniarek
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Ajay Rana
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
- Jesse Brown VA Medical Center, Chicago, Illinois
| | - Gerald Gantt
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Johan Nordenstam
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
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Deletion of TNF in Winnie- APCMin/+ Mice Reveals Its Dual Role in the Onset and Progression of Colitis-Associated Colorectal Cancer. Int J Mol Sci 2022; 23:ijms232315145. [PMID: 36499472 PMCID: PMC9737576 DOI: 10.3390/ijms232315145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/22/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
Colorectal cancer (CRC) is among the best examples for depicting the relationship between inflammation and cancer. The introduction of new therapeutics targeting inflammatory mediators showed a marked decrease in the overall risk of CRC, although their chemopreventive potential is still debated. Specifically, a monoclonal antibody that blocks tumor necrosis factor (TNF), infliximab, increases CRC risk in inflammatory bowel disease patients. To address the axis between TNF and CRC development and progression, we depleted the Tnf from our previously established murine model of colitis-associated cancer (CAC), the Winnie-ApcMin/+ line. We characterized the new Winnie-APCMin/+-TNF-KO line through macroscopical and microscopical analyses. Surprisingly, the latter demonstrated that the deletion of Tnf in Winnie-ApcMin/+ mice resulted in an initial reduction in dysplastic lesion incidence in 5-week-old mice followed by a faster disease progression at 8 weeks. Histological data were confirmed by the molecular profiling obtained from both the real-time PCR analysis of the whole tissue and the RNA sequencing of the macrodissected tumoral lesions from Winnie-APCMin/+-TNF-KO distal colon at 8 weeks. Our results highlight that TNF could exert a dual role in CAC, supporting the promotion of neoplastic lesions onset in the early stage of the disease while inducing their reduction during disease progression.
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Metropulos AE, Munshi HG, Principe DR. The difficulty in translating the preclinical success of combined TGFβ and immune checkpoint inhibition to clinical trial. EBioMedicine 2022; 86:104380. [PMID: 36455409 PMCID: PMC9706619 DOI: 10.1016/j.ebiom.2022.104380] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 11/03/2022] [Accepted: 11/09/2022] [Indexed: 11/29/2022] Open
Abstract
Immune checkpoint inhibitors (ICIs) have transformed the treatment paradigm for solid tumors. However, even in cancers generally considered ICI-sensitive, responses can vary significantly. Thus, there is an ever-increasing interest in identifying novel means of improving therapeutic responses, both for cancers in which ICIs are indicated and those for which they have yet to show significant anti-tumor activity. To this end, Transforming Growth Factor β (TGFβ) signaling is emerging as an important barrier to the efficacy of ICIs. Accordingly, several preclinical studies now support the use of combined TGFβ and immune checkpoint blockade, with near-uniform positive results across a wide range of tumor types. However, as these approaches have started to emerge in clinical trials, the addition of TGFβ inhibitors has often failed to show a meaningful benefit beyond the current generation of ICIs alone. Here, we summarize landmark clinical studies exploring combined TGFβ and immune checkpoint blockade. These studies not only reinforce the difficulty in translating results from rodents to clinical trials in immune-oncology but also underscore the need to re-evaluate the design of trials exploring this approach, incorporating both mechanism-driven combination strategies and novel, predictive biomarkers to identify the patients most likely to derive clinical benefit.
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Affiliation(s)
| | - Hidayatullah G Munshi
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Jesse Brown VA Medical Center, Chicago, IL, USA.
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TGF-β Signaling in Metastatic Colorectal Cancer (mCRC): From Underlying Mechanism to Potential Applications in Clinical Development. Int J Mol Sci 2022; 23:ijms232214436. [PMID: 36430910 PMCID: PMC9698504 DOI: 10.3390/ijms232214436] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/08/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Colorectal cancer (CRC) is a serious public health issue, and it has the leading incidence and mortality among malignant tumors worldwide. CRC patients with metastasis in the liver, lung or other distant sites always have poor prognosis. Thus, there is an urgent need to discover the underlying mechanisms of metastatic colorectal cancer (mCRC) and to develop optimal therapy for mCRC. Transforming growth factor-β (TGF-β) signaling plays a significant role in various physiologic and pathologic processes, and aberrant TGF-β signal transduction contributes to mCRC progression. In this review, we summarize the alterations of the TGF-β signaling pathway in mCRC patients, the functional mechanisms of TGF-β signaling, its promotion of epithelial-mesenchymal transition, its facilitation of angiogenesis, its suppression of anti-tumor activity of immune cells in the microenvironment and its contribution to stemness of CRC cells. We also discuss the possible applications of TGF-β signaling in mCRC diagnosis, prognosis and targeted therapies in clinical trials. Hopefully, these research advances in TGF-β signaling in mCRC will improve the development of new strategies that can be combined with molecular targeted therapy, immunotherapy and traditional therapies to achieve better efficacy and benefit mCRC patients in the near future.
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Wei H, Liao Q, Liu B. iLncRNAdis-FB: Identify lncRNA-Disease Associations by Fusing Biological Feature Blocks Through Deep Neural Network. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2021; 18:1946-1957. [PMID: 31905146 DOI: 10.1109/tcbb.2020.2964221] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Identification of lncRNA-disease associations is not only important for exploring the disease mechanism, but will also facilitate the molecular targeting drug discovery. Fusing multiple biological information is able to generate a more comprehensive view of lncRNA-disease association feature. However, the existing fusion strategies in this field fail to remove the noisy and irrelevant information from each data source. As a result, their predictive performance is still too low to be applied to real world applications. In this regard, a novel computational predictor called iLncRNAdis-FB is proposed based on the Convolution Neural Network (CNN) to integrate different data sources by using the feature blocks in a supervised manner. The lncRNA similarity matrix and disease similarity matrix are constructed, based on which the three-dimensional feature blocks are generated. These feature blocks are then fed into CNN to train the model so as to predict unknown lncRNA-disease associations. Experimental results show that iLncRNAdis-FB achieves better performance compared with other state-of-the-art predictors. Furthermore, a web server of iLncRNAdis-FB has been established at http://bliulab.net/iLncRNAdis-FB/, by which users can submit lncRNA sequences to detect their potential associated diseases.
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Borowicz S, Principe DR, Dorman MJ, McHenry AJ, Sondarva G, Kumar S, Ananthanarayanan V, Simms PE, Hess A, Rana A. HAI-1 is an independent predictor of lung cancer mortality and is required for M1 macrophage polarization. PLoS One 2021; 16:e0252197. [PMID: 34185790 PMCID: PMC8241049 DOI: 10.1371/journal.pone.0252197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 05/06/2021] [Indexed: 11/18/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the leading cause of cancer-related death worldwide. Though immune checkpoint inhibitors (ICIs) have revolutionized lung cancer therapy in recent years, there are several factors limiting the therapeutic efficacy of ICI-based immunotherapy in lung cancer. Recent evidence suggests that one such mechanism is the phenotypic shift of tumor-infiltrating macrophages away from an anti-tumor M1 phenotype and towards an anti-inflammatory and tumor-permissive M2 phenotype. Though this phenomenon is well documented, the means through which the lung tumor microenvironment (TME) usurps macrophage function are poorly described. Hepatocyte growth factor (HGF) is a known driver of both lung cancer pathobiology as well as M2 polarization, and its signaling is antagonized by the tumor suppressor gene HAI-1 (SPINT1). Using a combination of genomic databases, primary NSCLC specimens, and in vitro models, we determined that patients with loss of HAI-1 have a particularly poor prognosis, hallmarked by increased HGF expression and an M2-dominant immune infiltrate. Similarly, conditioned media from HAI-1-deficient tumor cells led to a loss of M1 and increased M2 polarization in vitro, and patient NSCLC tissues with loss of HAI-1 showed a similar loss of M1 macrophages. Combined, these results suggest that loss of HAI-1 is a potential means through which tumors acquire an immunosuppressive, M2-dominated TME, potentially through impaired M1 macrophage polarization. Hence, HAI-1 status may be informative when stratifying patients that may benefit from therapies targeting the HGF pathway, particularly as an adjuvant to ICI-based immunotherapy.
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Affiliation(s)
- Stanley Borowicz
- Division of Hematology/Oncology, Loyola University Medical Center, Maywood, Illinois, United States of America.,Department of Medicine, Division of Hematology/Oncology Edward Hines Jr. VA Hospital, Hines, Illinois, United States of America
| | - Daniel R Principe
- Medical Scientist Training Program, University of Illinois College of Medicine, Chicago, Illinois, United States of America.,Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America.,Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Matthew J Dorman
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Austin J McHenry
- Department of Pathology, Loyola University Medical Center, Maywood, Illinois, United States of America
| | - Gautam Sondarva
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Sandeep Kumar
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | | | - Patricia E Simms
- Loyola University FACS Core Facility, Loyola University Medical Center, Maywood, Illinois, United States of America
| | - Ashley Hess
- Loyola University FACS Core Facility, Loyola University Medical Center, Maywood, Illinois, United States of America
| | - Ajay Rana
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America.,Jesse Brown VA Medical Center, Chicago, Illinois, United States of America
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Fantini MC, Guadagni I. From inflammation to colitis-associated colorectal cancer in inflammatory bowel disease: Pathogenesis and impact of current therapies. Dig Liver Dis 2021; 53:558-565. [PMID: 33541800 DOI: 10.1016/j.dld.2021.01.012] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/23/2020] [Accepted: 01/11/2021] [Indexed: 02/07/2023]
Abstract
The risk of colorectal cancer (CRC) is higher in patients with inflammatory bowel disease (IBD). Population-based data from patients with ulcerative colitis (UC) estimate that the risk of CRC is approximately 2- to 3-fold that of the general population; patients with Crohn's disease appear to have a similar increased risk. However, the true extent of colitis-associated cancer (CAC) in undertreated IBD is unclear. Data suggest that the size (i.e., severity and extent) and persistence of the inflammatory process is largely responsible for the development of CRC in IBD. As patients with IBD and CRC have a worse prognosis than those without a history of IBD, the impact of current therapies for IBD on CAC is of importance. Chronic inflammation of the gut has been shown to increase the risk of developing CAC in both UC and CD. Therefore, control of inflammation is pivotal to the prevention of CAC. This review presents an overview of the current knowledge of CAC in IBD patients, focusing on the role of inflammation in the pathogenesis of CAC and the potential for IBD drugs to interfere with the process of carcinogenesis by reducing the inflammatory process or by modulating pathways directly involved in carcinogenesis.
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Affiliation(s)
- Massimo Claudio Fantini
- Department of Medical Science and Public Health, Gastroenterology Unit, University of Cagliari, Cittadella Universitaria di Monserrato - Asse Didattico I, SS 554 bivio Sestu, 09042 Monserrato, Cagliari, Italy.
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11
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El-Deek SEM, Abd-Elghaffar SKH, Hna RS, Mohamed HG, El-Deek HEM. Effect of Hesperidin against Induced Colon Cancer in Rats: Impact of Smad4 and Activin A Signaling Pathway. Nutr Cancer 2021; 74:697-714. [PMID: 33818196 DOI: 10.1080/01635581.2021.1907424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 08/01/2020] [Accepted: 03/04/2021] [Indexed: 01/10/2023]
Abstract
SCOPE To evaluate the chemopreventive efficacy of hesperidin (Hsd) in 1,2-dimethylhydrazine (DMH)-induced colorectal cancer (CRC) and demonstrate its role in mothers against decapentaplegic homolog 4(Smad4) and activin A signaling pathways. METHODS AND RESULTS A CRC rat model was established by DMH exposure, and the animals were randomly divided into five groups: Control group, Hsd, DMH, DMH + Hsd, and DMH followed by Hsd. The resected colon was subjected to macroscopic, microscopic, molecular, histopathological, and immunohistochemical examination. Activin A, Smad4, malondialdehyde (MDA), nitric oxide (NO), reduced glutathione (GSH), and superoxide dismutase (SOD) levels in tissues were also measured. The DMH group exhibited a significant increase in the gene and protein expression of activin A as well as MDA and NO levels in tissues. There was a significant reduction in the gene and protein expression of Smad4 as well as GSH and SOD levels in tissues. Administration of Hsd significantly upregulated Smad4 and activin A gene expressions in both the DMH + Hsd and DMH followed by Hsd groups. Moreover, Hsd improved the antioxidant status of the former two groups. CONCLUSION This study demonstrated the chemopreventive effect of Hsd against CRC by modulating Smad4 and activin A signaling in vivo. Further studies are needed to demonstrate its clinical value and explore its possible role in advanced malignancy.
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Affiliation(s)
- Sahar E M El-Deek
- Medical Biochemistry Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Sary K H Abd-Elghaffar
- Pathology and Clinical Pathology Department, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Randa S Hna
- Medical Biochemistry Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Heba G Mohamed
- Biochemistry Department, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Heba E M El-Deek
- Pathology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
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12
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Yang J, Wen Z, Li W, Sun X, Ma J, She X, Zhang H, Tu C, Wang G, Huang D, Shen X, Dong J, Zhang H. Immune Microenvironment: New Insight for Familial Adenomatous Polyposis. Front Oncol 2021; 11:570241. [PMID: 33628741 PMCID: PMC7897671 DOI: 10.3389/fonc.2021.570241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 01/13/2021] [Indexed: 12/12/2022] Open
Abstract
Currently, the main treatment for familial adenomatous polyposis (FAP) is surgery, however, surgery is far from ideal as there are many complications such as uncontrollable bowel movements, pouch inflammation, anastomotic stricture, and secondary fibroids. Therefore, it is necessary to further expand the understanding of FAP and develop new treatments for FAP. The immune microenvironment including immune cells and cytokines, plays an important role in FAP and the progression of FAP to adenocarcinoma, thus it may be a promising treatment for FAP. In the current review, we summarized the recent progress in the immune microenvironment of FAP.
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Affiliation(s)
- Jun Yang
- Department of Oncology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhengqi Wen
- Department of Oncology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Wenliang Li
- Department of Oncology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xianghua Sun
- Department of Cadre Recuperation, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Junrui Ma
- Department of Nursing, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xueke She
- The Medical Department, 3D Medicines Inc., Shanghai, China
| | - Hongbin Zhang
- Department of Oncology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Changling Tu
- Department of Medical Oncology, The Third Affiliated Hospital of Kunming Medical University, Yunan Cancer Hospital, Kunming, China
| | - Guoqiang Wang
- The Medical Department, 3D Medicines Inc., Shanghai, China
| | - Depei Huang
- The Medical Department, 3D Medicines Inc., Shanghai, China
| | - Xudong Shen
- The Medical Department, 3D Medicines Inc., Shanghai, China
| | - Jian Dong
- Department of Medical Oncology, The Third Affiliated Hospital of Kunming Medical University, Yunan Cancer Hospital, Kunming, China
| | - Hushan Zhang
- The Medical Department, 3D Medicines Inc., Shanghai, China
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13
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Zhang Y, Zhou YM, Zhang ZJ, Li X. miR-210 is a Serological Biomarker for Predicting Recurrence and Prognosis of Colon Carcinoma Patients with Liver Metastases After Radiofrequency Ablation Treatment. Cancer Manag Res 2020; 12:9077-9085. [PMID: 33061602 PMCID: PMC7524199 DOI: 10.2147/cmar.s267731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/11/2020] [Indexed: 12/26/2022] Open
Abstract
Purpose Hepatic metastasis of colon carcinoma seriously affects the prognosis of patients, and miRNA has attracted much attention in predicting hepatic metastasis of colon carcinoma (CC). This research aimed to explore the predictive role of miR-210 in serum for recurrence and prognosis of CC patients with hepatic metastasis. Methods Altogether, 150 patients with liver metastases of CC (research group, RG) and 130 patients with non-metastatic of CC (control group, CG) admitted to People’s Hospital of Deyang City from March 2012 to March 2015 were obtained and their serum was collected. miR-210 in the RG and the CG, and miR-210 in the RG after radiofrequency ablation treatment were detected, the relationship between miR-210 and pathological parameters of CC patients with hepatic metastasis was analyzed, and patients in the RG were followed up for 5 years to analyze the recurrence, overall survival (OS) and disease-free survival (DFS). The area under the curve (AUC) of receiver operating characteristic curve (ROC) was applied to test the predictive value of miR-210. Cox regression was applied to analyze the independent prognostic factors of patients. Results miR-210 in the RG was evidently higher than that in the CG, and AUC for distinguishing hepatic metastasis of CC was 0.907. miR-210 had a close correlation with lymph node metastasis, distant metastasis and pathological differentiation. After treatment, miR-210 in the RG was evidently reduced, and the serum was higher in patients with recurrence and with poor prognosis. AUC for predicting recurrence was 0.858, and AUC for predicting poor prognosis was 0.843. High miR-210 was closely related to lower 5-year OS and DFS and is also an independent prognostic factor affecting patients’ 5-year OS. Conclusion miR-210 is enhanced in hepatic metastasis of CC, which is a serological biomarker for predicting recurrence and prognosis of patients with hepatic metastasis of CC after radiofrequency ablation, and has great clinical application value.
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Affiliation(s)
- Yong Zhang
- Department of Radiology, People's Hospital of Deyang City, Deyang City, Sichuan Province 618000, People's Republic of China
| | - Yu-Mei Zhou
- Outpatient Department, People's Hospital of Deyang City, Deyang City, Sichuan Province, 618000, People's Republic of China
| | - Zu-Jian Zhang
- Department of Interventional Radiology, People's Hospital of Deyang City, Deyang City, Sichuan Province 618000, People's Republic of China
| | - Xin Li
- Department of Interventional Radiology, People's Hospital of Deyang City, Deyang City, Sichuan Province 618000, People's Republic of China
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14
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Proposed hypothesis and rationale for association between mastitis and breast cancer. Med Hypotheses 2020; 144:110057. [PMID: 32758892 DOI: 10.1016/j.mehy.2020.110057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/15/2020] [Accepted: 06/26/2020] [Indexed: 12/18/2022]
Abstract
Breast cancer is amongst the most common forms of cancer, is predominantly a woman's illness, and is the most frequently reported invasive cancer in women worldwide (Bray et al., 2018). Varying risk factors have been identified, including genetics, family history, lifestyle, age and the use of hormone replacement therapy. Mastitis, also predominantly a woman's illness, is an inflammatory condition of the breast that, despite being an inflammation-related condition, is not currently considered a risk factor for breast cancer. This appears counterintuitive as epidemiological studies have identified chronic inflammation as a contributor to cancer risk, for example in gastric, oesophageal and colon cancers (Lin et al., 2016; Qadri et al., 2014; Principe et al., 2017). Previous reports have focused on women hospitalised for mastitis, and most commonly on puerperal mastitis, perhaps underestimating the relationship between breast cancer and non-lactational mastitis. Our hypothesis, based on systematic review, suggests that a longitudinal study of this disease, affecting women predominantly, is warranted.
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Principe DR, Narbutis M, Kumar S, Park A, Viswakarma N, Dorman MJ, Kamath SD, Grippo PJ, Fishel ML, Hwang RF, Thummuri D, Underwood PW, Munshi HG, Trevino JG, Rana A. Long-Term Gemcitabine Treatment Reshapes the Pancreatic Tumor Microenvironment and Sensitizes Murine Carcinoma to Combination Immunotherapy. Cancer Res 2020; 80:3101-3115. [PMID: 32238357 PMCID: PMC7777391 DOI: 10.1158/0008-5472.can-19-2959] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/10/2020] [Accepted: 03/19/2020] [Indexed: 12/17/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a leading cause of cancer-related death with a median survival time of 6-12 months. Most patients present with disseminated disease and the majority are offered palliative chemotherapy. With no approved treatment modalities for patients who progress on chemotherapy, we explored the effects of long-term gemcitabine administration on the tumor microenvironment to identify potential therapeutic options for chemorefractory PDAC. Using a combination of mouse models, primary cell line-derived xenografts, and established tumor cell lines, we first evaluated chemotherapy-induced alterations in the tumor secretome and immune surface proteins by high throughput proteomic arrays. In addition to enhancing antigen presentation and immune checkpoint expression, gemcitabine consistently increased the synthesis of CCL/CXCL chemokines and TGFβ-associated signals. These secreted factors altered the composition of the tumor stroma, conferring gemcitabine resistance to cancer-associated fibroblasts in vitro and further enhancing TGFβ1 biosynthesis. Combined gemcitabine and anti-PD-1 treatment in transgenic models of murine PDAC failed to alter disease course unless mice also underwent genetic or pharmacologic ablation of TGFβ signaling. In the setting of TGFβ signaling deficiency, gemcitabine and anti-PD-1 led to a robust CD8+ T-cell response and decrease in tumor burden, markedly enhancing overall survival. These results suggest that gemcitabine successfully primes PDAC tumors for immune checkpoint inhibition by enhancing antigen presentation only following disruption of the immunosuppressive cytokine barrier. Given the current lack of third-line treatment options, this approach warrants consideration in the clinical management of gemcitabine-refractory PDAC. SIGNIFICANCE: These data suggest that long-term treatment with gemcitabine leads to extensive reprogramming of the pancreatic tumor microenvironment and that patients who progress on gemcitabine-based regimens may benefit from multidrug immunotherapy.See related commentary by Carpenter et al., p. 3070 GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/80/15/3101/F1.large.jpg.
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Affiliation(s)
- Daniel R Principe
- Medical Scientist Training Program, University of Illinois College of Medicine, Chicago, Illinois.
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Matthew Narbutis
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Sandeep Kumar
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Alex Park
- University of Illinois College of Medicine, Chicago, Illinois
| | - Navin Viswakarma
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Matthew J Dorman
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois
| | - Suneel D Kamath
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Paul J Grippo
- Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Melissa L Fishel
- Department of Pediatrics, Indiana University School of Medicine, Indiana University, Indianapolis, Indiana
| | - Rosa F Hwang
- Department of Breast Surgical Oncology, Division of Surgery, MD Anderson Cancer Center, University of Texas, Houston, Texas
| | - Dinesh Thummuri
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, Florida
| | - Patrick W Underwood
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida
| | - Hidayatullah G Munshi
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois
- Jesse Brown VA Medical Center, Chicago, Illinois
| | - Jose G Trevino
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida
| | - Ajay Rana
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois.
- Jesse Brown VA Medical Center, Chicago, Illinois
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16
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Zhao R, Du S, Liu Y, Lv C, Song Y, Chen X, Zhang B, Li D, Gao S, Cui W, Plikus MV, Hou X, Wu K, Liu Z, Liu Z, Cong Y, Li Y, Yu Z. Mucoadhesive-to-penetrating controllable peptosomes-in-microspheres co-loaded with anti-miR-31 oligonucleotide and Curcumin for targeted colorectal cancer therapy. Theranostics 2020; 10:3594-3611. [PMID: 32206110 PMCID: PMC7069075 DOI: 10.7150/thno.40318] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 11/30/2019] [Indexed: 02/07/2023] Open
Abstract
Background: Accumulating evidences indicate that nanomedicines greatly decrease the side effects and enhance the efficacy of colorectal cancer (CRC) treatment. In particular, the use of rectal delivery of nanomedicines, with advantages such as fast therapeutic effects and a diminishing hepatic first-pass effect, is currently emerging. Method: We established a CRC targeted delivery system, in which α-lactalbumin peptosomes (PSs) co-loaded with a microRNA (miR)-31 inhibitor (miR-31i) and curcumin (Cur) were encapsuslated in thiolated TEMPO oxidized Konjac glucomannan (sOKGM) microspheres, referred as sOKGM-PS-miR-31i/Cur. The CRC targeting capability, drug release profiles, mucoadhesive-to-penetrating properties and therapeutic efficacy of sOKGM-PS-miR-31i/Cur delivery system were evaluated in colorectal cancer cells and azoxymethane-dextran sodium (AOM-DSS) induced tumor models. Results: sOKGM-PS-miR-31i/Cur delivery system were stable in the harsh gastrointestinal environment after rectal or oral administration; and were also mucoadhesive due to disulfide bond interactions with the colonic mucus layer, resulting in an enhanced drug retention and local bioavailability in the colon. Concomitantly, the released PS-miR-31i/Cur PSs from the microsphere was mucus-penetrating, efficiently passing through the colonic mucus layer, and allowed Cur and miR-31i specifically target to colon tumor cells with the guide of CD133 targeting peptides. Consequently, rectal delivery of sOKGM-PS-miR-31i/Cur microspheres suppressed tumor growth in an azoxymethane-dextran sodium sulfate (AOM-DSS)-induced tumor model. Conclusion: sOKGM-PS-miR-31i/Cur microspheres are effective rectal delivery system with combined advantages of mucoadhesive and mucus-penetrating properties, representing a potent and viable therapeutic approach for CRC.
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Bauer J, Emon MAB, Staudacher JJ, Thomas AL, Zessner-Spitzenberg J, Mancinelli G, Krett N, Saif MT, Jung B. Increased stiffness of the tumor microenvironment in colon cancer stimulates cancer associated fibroblast-mediated prometastatic activin A signaling. Sci Rep 2020; 10:50. [PMID: 31919369 PMCID: PMC6952350 DOI: 10.1038/s41598-019-55687-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/24/2019] [Indexed: 12/20/2022] Open
Abstract
Colorectal cancer (CRC) is the second deadliest cancer in the US due to its propensity to metastasize. Stromal cells and especially cancer-associated fibroblasts (CAF) play a critical biophysical role in cancer progression, but the precise pro-metastatic mechanisms are not clear. Activin A, a TGF-β family member, is a strong pro-metastatic cytokine in the context of CRC. Here, we assessed the link between biophysical forces and pro-metastatic signaling by testing the hypothesis that CAF-generated mechanical forces lead to activin A release and associated downstream effects. Consistent with our hypothesis, we first determined that stromal activin A secretion increased with increasing substrate stiffness. Then we found that stromally-secreted activin A induced ligand-dependent CRC epithelial cell migration and epithelial to mesenchymal transition (EMT). In addition, serum activin A levels are significantly increased in metastatic (stage IV) CRC patients (1.558 ng/ml versus 0.4179 ng/ml, p < 0.05). We propose that increased tumor microenvironment stiffness leads to stromal cell-mediated TGF-β family signaling relying on the induction and utilization of activin A signaling.
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Affiliation(s)
- Jessica Bauer
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, USA
| | - Md Abul Bashar Emon
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Jonas J Staudacher
- Department of Gastroenterology, Infectious Diseases and Rheumatology, Charité-University Medicine, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Alexandra L Thomas
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, USA
| | - Jasmin Zessner-Spitzenberg
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, USA.,Medical University of Vienna, Vienna, Austria
| | - Georgina Mancinelli
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, USA
| | - Nancy Krett
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, USA
| | - M Taher Saif
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Barbara Jung
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, USA.
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Abstract
Transforming growth factor-beta (TGF-β) signaling is one of the important cellular pathways that play key roles for tissue maintenance. In particular, it is important in the context of inflammation and tumorigenesis by modulating cell growth, differentiation, apoptosis, and homeostasis. TGF-β receptor type 2 (TGFBR2) mutations affected by a mismatch repair deficiency causes colorectal cancers (CRCs) with microsatellite instability, which is, however, associated with relatively better survival rates. On the other hand, loss of SMAD4, a transcription factor in the TGF-β superfamily signaling, promotes tumor progression. Loss of heterozygosity on chromosome 18 can case SMAD4-deficient CRC, which results in poorer patients' survival. Such bidirectional phenomenon driven by TGF-β signaling insufficiency reflects the complexity of this signaling pathway in CRC. Moreover, recent understanding of CRC at the molecular level (consensus molecular subtype classification) provides deep insight into the important roles of TGF-β signaling in the tumor microenvironment. Here we focus on the TGF-β signaling in CRC and its interaction with the tumor microenvironment. We summarize the molecular mechanisms of CRC tumorigenesis and progression caused by disruption of TGF-β signaling by cancer epithelial cells and host stromal cells.
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Transforming Growth Factor-β Signaling Pathway in Colorectal Cancer and Its Tumor Microenvironment. Int J Mol Sci 2019; 20:ijms20235822. [PMID: 31756952 PMCID: PMC6929101 DOI: 10.3390/ijms20235822] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 11/14/2019] [Accepted: 11/18/2019] [Indexed: 02/08/2023] Open
Abstract
Transforming growth factor-beta (TGF-β) signaling is one of the important cellular pathways that play key roles for tissue maintenance. In particular, it is important in the context of inflammation and tumorigenesis by modulating cell growth, differentiation, apoptosis, and homeostasis. TGF-β receptor type 2 (TGFBR2) mutations affected by a mismatch repair deficiency causes colorectal cancers (CRCs) with microsatellite instability, which is, however, associated with relatively better survival rates. On the other hand, loss of SMAD4, a transcription factor in the TGF-β superfamily signaling, promotes tumor progression. Loss of heterozygosity on chromosome 18 can case SMAD4-deficient CRC, which results in poorer patients’ survival. Such bidirectional phenomenon driven by TGF-β signaling insufficiency reflects the complexity of this signaling pathway in CRC. Moreover, recent understanding of CRC at the molecular level (consensus molecular subtype classification) provides deep insight into the important roles of TGF-β signaling in the tumor microenvironment. Here we focus on the TGF-β signaling in CRC and its interaction with the tumor microenvironment. We summarize the molecular mechanisms of CRC tumorigenesis and progression caused by disruption of TGF-β signaling by cancer epithelial cells and host stromal cells.
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Abstract
TGF-β superfamily signaling is responsible for many critical cellular functions including control of cell growth, cell proliferation, cell differentiation, and apoptosis. TGF-β appears to be critical in gastrulation, embryonic development, and morphogenesis, and it retains pleiotropic roles in many adult tissues and cell types in a highly context-dependent manner. While TGF-β signaling within leukocytes is known to have an immunosuppressive role, its immunomodulatory effects within epithelial cells and epithelial cancers is less well understood. Recent data has emerged that suggests TGF-β pathway signaling within epithelial cells may directly modulate pro-inflammatory chemokine/cytokine production and resultant leukocyte recruitment. This immunomodulation by epithelial TGF-β pathway signaling may directly impact tumorigenesis and tumor progression through modulation of the epithelial microenvironment, although causal pathways responsible for such an observation remain incompletely investigated. This review presents the published literature as it relates to the immunomodulatory effects of TGF-β family signaling within intestinal epithelial cells and carcinomas.
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The Transcription Factor ETV5 Mediates BRAFV600E-Induced Proliferation and TWIST1 Expression in Papillary Thyroid Cancer Cells. Neoplasia 2018; 20:1121-1134. [PMID: 30265861 PMCID: PMC6161370 DOI: 10.1016/j.neo.2018.09.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/08/2018] [Accepted: 09/08/2018] [Indexed: 12/17/2022] Open
Abstract
The ETS family of transcription factors is involved in several normal remodeling events and pathological processes including tumor progression. ETS transcription factors are divided into subfamilies based on the sequence and location of the ETS domain. ETV5 (Ets variant gene 5; also known as ERM) is a member of the PEA3 subfamily. Our meta-analysis of normal, benign, and malignant thyroid samples demonstrated that ETV5 expression is upregulated in papillary thyroid cancer and was predominantly associated with BRAF V600E or RAS mutations. However, the precise role of ETV5 in these lesions is unknown. In this study, we used the KTC1 cell line as a model for human advanced papillary thyroid cancer (PTC) because the cells harbor the heterozygous BRAF (V600E) mutation together with the C250T TERT promoter mutation. The role of ETV5 in PTC proliferation was tested using RNAi followed by high-throughput screening. Signaling pathways driving ETV5 expression were identified using specific pharmacological inhibitors. To determine if ETV5 influences the expression of epithelial-to-mesenchymal (EMT) markers in these cells, an EMT PCR array was used, and data were confirmed by qPCR and ChIP-qPCR. We found that ETV5 is critical for PTC cell growth, is expressed downstream of the MAPK pathway, and directly upregulates the transcription factor TWIST1, a known marker of intravasation and metastasis. Increased ETV5 expression could therefore be considered as a marker for advanced PTCs and a possible future therapeutic target.
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22
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Stanilova S, Stanilov N, Julianov A, Manolova I, Miteva L. Transforming growth factor-β1 gene promoter -509C/T polymorphism in association with expression affects colorectal cancer development and depends on gender. PLoS One 2018; 13:e0201775. [PMID: 30071009 PMCID: PMC6072135 DOI: 10.1371/journal.pone.0201775] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 07/20/2018] [Indexed: 12/12/2022] Open
Abstract
It is widely known that sporadic colorectal cancer (CRC) is age-related diseases with higher incidence rate among men. Transforming growth factor-β1 (TGF-β1) is a major immune regulatory cytokine with a great impact and dual role in gastrointestinal carcinogenesis. In this context, the aim of the study was to explore the role of circulating TGF-β1 and the -509C/T functional promoter polymorphism (rs1800469) within the TGF-β1 gene (TGFB1) in the susceptibility, progression, and prognosis of CRC among Bulgarian male and female patients. Patients with sporadic CRC and healthy controls were genotyped by polymerase-chain reaction–restriction fragment length polymorphism. Serum TGF-β1 levels before and after curative surgery were determined by ELISA. Total RNA was extracted from paired tumor, normal mucosa and distant metastasis samples and was used for quantitative detection of TGFB1 mRNA by TaqMan qPCR.We observed that TGF-β1 serum levels depend on the -509C/T genotype in combination with gender. TGF-β1 serum levels in CRC patients were decreased compared to controls, but statistical significance was reached only for men. In the stratified analysis by gender and genotype, a significant association was found for the CC genotype. Overall, our results indicate that the -509C allele increased the cancer risk, particularly for advanced stages (OR = 1.477; p = 0.029). The results from the relative mRNA quantification showed a significant upregulation of TGFB1 in distant metastases compared to primary tumor tissues and higher TGFB1 mRNA levels in men (RQ = 4.959; p = 0.022). In conclusion, we present data that diminished circulating TGF-β1 due to the CC genotype could be a possible risk factor for tumor susceptibility and progression. This association is more pronounced in males than in females. Colorectal cancer tissue expression of TGFB1 gene mRNA correlates with tumor progression and metastasis.
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Affiliation(s)
- Spaska Stanilova
- Department of Molecular Biology, Immunology and Medical Genetics, Medical Faculty, Trakia University, Stara Zagora, Bulgaria
- * E-mail:
| | - Noyko Stanilov
- Breast Oncoplastic Unit, University College London Hospital, London, United Kingdom
| | - Alexander Julianov
- Trakia Hospital, Stara Zagora, Bulgaria
- Department of Surgery, Medical Faculty, Trakia University, Stara Zagora, Bulgaria
| | - Irena Manolova
- Department of Molecular Biology, Immunology and Medical Genetics, Medical Faculty, Trakia University, Stara Zagora, Bulgaria
| | - Lyuba Miteva
- Department of Molecular Biology, Immunology and Medical Genetics, Medical Faculty, Trakia University, Stara Zagora, Bulgaria
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Meng Y, Cai XH, Wang L. Potential Genes and Pathways of Neonatal Sepsis Based on Functional Gene Set Enrichment Analyses. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2018; 2018:6708520. [PMID: 30154914 PMCID: PMC6091373 DOI: 10.1155/2018/6708520] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 06/04/2018] [Accepted: 06/27/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Neonatal sepsis (NS) is considered as the most common cause of neonatal deaths that newborns suffer from. Although numerous studies focus on gene biomarkers of NS, the predictive value of the gene biomarkers is low. NS pathogenesis is still needed to be investigated. METHODS After data preprocessing, we used KEGG enrichment method to identify the differentially expressed pathways between NS and normal controls. Then, functional principal component analysis (FPCA) was adopted to calculate gene values in NS. In order to further study the key signaling pathway of the NS, elastic-net regression model, Mann-Whitney U test, and coexpression network were used to estimate the weights of signaling pathway and hub genes. RESULTS A total of 115 different pathways between NS and controls were first identified. FPCA made full use of time-series gene expression information and estimated F values of genes in the different pathways. The top 1000 genes were considered as the different genes and were further analyzed by elastic-net regression and MWU test. There were 7 key signaling pathways between the NS and controls, according to different sources. Among those genes involved in key pathways, 7 hub genes, PIK3CA, TGFBR2, CDKN1B, KRAS, E2F3, TRAF6, and CHUK, were determined based on the coexpression network. Most of them were cancer-related genes. PIK3CA was considered as the common marker, which is highly expressed in the lymphocyte group. Little was known about the correlation of PIK3CA with NS, which gives us a new enlightenment for NS study. CONCLUSION This research might provide the perspective information to explore the potential novel genes and pathways as NS therapy targets.
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Affiliation(s)
- YuXiu Meng
- Department of Neonatology, First People's Hospital of Jining, Jining, Shandong 272000, China
| | - Xue Hong Cai
- Department of Pediatrics, Traditional Chinese Medicine Hospital of Yanzhou, Jining, Shandong 272100, China
| | - LiPei Wang
- Department of Neonatology, First People's Hospital of Jining, Jining, Shandong 272000, China
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Zhang Z, Xing T, Chen Y, Xiao J. Exosome-mediated miR-200b promotes colorectal cancer proliferation upon TGF-β1 exposure. Biomed Pharmacother 2018; 106:1135-1143. [PMID: 30119180 DOI: 10.1016/j.biopha.2018.07.042] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/04/2018] [Accepted: 07/07/2018] [Indexed: 12/19/2022] Open
Abstract
Exosome are emerging mediators of intercellular communication. Cancer-secreted exosome has an effect on the exosome donor cells and support cancer growth and metastasis. Here, we examine the TGF-β1, a multifunctional cytokine involved in the regulation of cellular signaling pathways in human cancers, significantly contributes to upregulate miR-200b in exosome from colorectal cancer cell lines. The miR-200b enriched in exosome can be transferred into a new target cell to facilitating the colorectal cancer cells proliferation. Further studies showing that the exosomal miR-200b could directly target 3'-UTRs of p27 and RND3 resulted in knockdown of respective target proteins in recipient cells. Remarkably, the overexpression of p27/kip1 in HCT-116 cell, not RND3, resulted in effectively inhibited cell proliferation which induced by exosomal miR-200b. Moreover, animal experiment studies also confirmed a stimulating effect of exosomal miR-200b on colorectal cancer cell-derived xenografts. The expression p27/kip1 have decreased in tumors xenografts after injected with exosomal miR-200b. Our observations offer an evidence that whereby exosomal specific miRNA could amplify the proliferative element into the neighboring or distant cells to effective tumor growth.
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Affiliation(s)
- Zhen Zhang
- Department of Gerontology, The Yeda Hospital of Yantai City, Shandong, People's Republic of China
| | - Tongchao Xing
- Department of General Surgery, The Fourth Peoples's Hospital of Shaanxi, Shaanxi, People's Republic of China
| | - Yanhui Chen
- Department of GeneralSurgery, The First People's Hospital of Xianyang City, Shaanxi, People's Republic of China
| | - Jiangmei Xiao
- Digestive Department; Tongchuan traditional Chinese medicine hospital, Shaanxi, People's Republic of China.
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25
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Ganesan R, Sivalingam N. Transforming Growth Factor Beta 2 Inhibits Growth and Proliferation Potential of Smad4 and p53 Mutated Human Colon Adenocarcinoma Cells. Pathol Oncol Res 2018; 25:819-821. [PMID: 29948613 DOI: 10.1007/s12253-018-0423-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 05/28/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Ramamoorthi Ganesan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603203, India
| | - Nageswaran Sivalingam
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603203, India.
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26
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Means AL, Freeman TJ, Zhu J, Woodbury LG, Marincola-Smith P, Wu C, Meyer AR, Weaver CJ, Padmanabhan C, An H, Zi J, Wessinger BC, Chaturvedi R, Brown TD, Deane NG, Coffey RJ, Wilson KT, Smith JJ, Sawyers CL, Goldenring JR, Novitskiy SV, Washington MK, Shi C, Beauchamp RD. Epithelial Smad4 Deletion Up-Regulates Inflammation and Promotes Inflammation-Associated Cancer. Cell Mol Gastroenterol Hepatol 2018; 6:257-276. [PMID: 30109253 PMCID: PMC6083016 DOI: 10.1016/j.jcmgh.2018.05.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 05/18/2018] [Indexed: 02/08/2023]
Abstract
Background & Aims Chronic inflammation is a predisposing condition for colorectal cancer. Many studies to date have focused on proinflammatory signaling pathways in the colon. Understanding the mechanisms that suppress inflammation, particularly in epithelial cells, is critical for developing therapeutic interventions. Here, we explored the roles of transforming growth factor β (TGFβ) family signaling through SMAD4 in colonic epithelial cells. Methods The Smad4 gene was deleted specifically in adult murine intestinal epithelium. Colitis was induced by 3 rounds of dextran sodium sulfate in drinking water, after which mice were observed for up to 3 months. Nontransformed mouse colonocyte cell lines and colonoid cultures and human colorectal cancer cell lines were analyzed for responses to TGFβ1 and bone morphogenetic protein 2. Results Dextran sodium sulfate treatment was sufficient to drive carcinogenesis in mice lacking colonic Smad4 expression, with resulting tumors bearing striking resemblance to human colitis-associated carcinoma. Loss of SMAD4 protein was observed in 48% of human colitis-associated carcinoma samples as compared with 19% of sporadic colorectal carcinomas. Loss of Smad4 increased the expression of inflammatory mediators within nontransformed mouse colon epithelial cells in vivo. In vitro analysis of mouse and human colonic epithelial cell lines and organoids indicated that much of this regulation was cell autonomous. Furthermore, TGFβ signaling inhibited the epithelial inflammatory response to proinflammatory cytokines. Conclusions TGFβ suppresses the expression of proinflammatory genes in the colon epithelium, and loss of its downstream mediator, SMAD4, is sufficient to initiate inflammation-driven colon cancer. Transcript profiling: GSE100082.
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Key Words
- AOM, azoxymethane
- APC, adenomatous polyposis coli
- BMP, bone morphogenetic protein
- CAC, colitis-associated carcinoma
- CCL20, Chemokine (C-C motif) ligand 20
- CRC, colorectal cancer
- CRISPR/Cas9, Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR-associated protein 9
- Colitis-Associated Carcinoma
- DMEM, Dulbecco's modified Eagle medium
- DSS, dextran sodium sulfate
- FBS, fetal bovine serum
- FDR, false discovery rate
- GFP, green fluorescent protein
- HBSS, Hank's balanced salt solution
- IBD, inflammatory bowel disease
- IL, interleukin
- IMCS4fl/fl, immortalized mouse colonoctye cell line with loxP-flanked Smad4 alleles
- IMCS4null, immortalized mouse colonocyte cell line with deletion of the Smad4 alleles
- LPS, lipopolysaccharide
- PBS, phosphate-buffered saline
- PE, phycoerythrin
- R-SMAD, Receptor-SMAD
- SFG, retroviral vector
- STAT3, signal transducer and activator of transcription 3
- TGFβ
- TGFβ, transforming growth factor β
- TNF, tumor necrosis factor
- Tumor Necrosis Factor
- UC, ulcerative colitis
- WNT, wingless-type mouse mammary tumor virus integration site
- YAMC, young adult mouse colon epithelial cells
- mRNA, messenger RNA
- sgRNA, single-guide RNA
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Affiliation(s)
- Anna L. Means
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Tanner J. Freeman
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jing Zhu
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Luke G. Woodbury
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Chao Wu
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Anne R. Meyer
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Connie J. Weaver
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Hanbing An
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jinghuan Zi
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Bronson C. Wessinger
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Rupesh Chaturvedi
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Tasia D. Brown
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Natasha G. Deane
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Robert J. Coffey
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
- Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
| | - Keith T. Wilson
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
- Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
| | - J. Joshua Smith
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Charles L. Sawyers
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - James R. Goldenring
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
- Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
| | - Sergey V. Novitskiy
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - M. Kay Washington
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Chanjuan Shi
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - R. Daniel Beauchamp
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
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Agarwal A, Kasinathan A, Ganesan R, Balasubramanian A, Bhaskaran J, Suresh S, Srinivasan R, Aravind KB, Sivalingam N. Curcumin induces apoptosis and cell cycle arrest via the activation of reactive oxygen species-independent mitochondrial apoptotic pathway in Smad4 and p53 mutated colon adenocarcinoma HT29 cells. Nutr Res 2018; 51:67-81. [PMID: 29673545 DOI: 10.1016/j.nutres.2017.12.011] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 12/31/2017] [Accepted: 12/31/2017] [Indexed: 11/25/2022]
Abstract
Curcumin is a natural dietary polyphenol compound that has various pharmacological activities such as antiproliferative and cancer-preventive activities on tumor cells. Indeed, the role reactive oxygen species (ROS) generated by curcumin on cell death and cell proliferation inhibition in colon cancer is poorly understood. In the present study, we hypothesized that curcumin-induced ROS may promote apoptosis and cell cycle arrest in colon cancer. To test this hypothesis, the apoptosis-inducing potential and cell cycle inhibition effect of ROS induced by curcumin was investigated in Smd4 and p53 mutated HT-29 colon adenocarcinoma cells. We found that curcumin treatment significantly increased the level of ROS in HT-29 cells in a dose- and time-dependent manner. Furthermore, curcumin treatment markedly decreased the cell viability and proliferation potential of HT-29 cells in a dose- and time-dependent manner. Conversely, generation of ROS and inhibitory effect of curcumin on HT-29 cells were abrogated by N-acetylcysteine treatment. In addition, curcumin treatment did not show any cytotoxic effects on HT-29 cells. Furthermore, curcumin-induced ROS generation caused the DNA fragmentation, chromatin condensation, and cell nuclear shrinkage and significantly increased apoptotic cells in a dose- and time-dependent manner in HT-29 cells. However, pretreatment of N-acetylcysteine inhibited the apoptosis-triggering effect of curcumin-induced ROS in HT-29 cells. In addition, curcumin-induced ROS effectively mediated cell cycle inhibition in HT-29 cells. In conclusion, our data provide the first evidence that curcumin induces ROS independent apoptosis and cell cycle arrest in colon cancer cells that carry mutation on Smad4 and p53.
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Affiliation(s)
- Ayushi Agarwal
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamilnadu, India
| | - Akiladdevi Kasinathan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamilnadu, India
| | - Ramamoorthi Ganesan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamilnadu, India
| | - Akhila Balasubramanian
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamilnadu, India
| | - Jahnavi Bhaskaran
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamilnadu, India
| | - Samyuktha Suresh
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamilnadu, India
| | - Revanth Srinivasan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamilnadu, India
| | - K B Aravind
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamilnadu, India
| | - Nageswaran Sivalingam
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamilnadu, India.
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28
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Activin in acute pancreatitis: Potential risk-stratifying marker and novel therapeutic target. Sci Rep 2017; 7:12786. [PMID: 28986573 PMCID: PMC5630611 DOI: 10.1038/s41598-017-13000-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 09/12/2017] [Indexed: 02/07/2023] Open
Abstract
Acute Pancreatitis is a substantial health care challenge with increasing incidence. Patients who develop severe disease have considerable mortality. Currently, no reliable predictive marker to identify patients at risk for severe disease exists. Treatment is limited to rehydration and supporting care suggesting an urgent need to develop novel approaches to improve standard care. Activin is a critical modulator of inflammatory responses, but has not been assessed in pancreatitis. Here, we demonstrate that serum activin is elevated and strongly correlates with disease severity in two established murine models of acute pancreatitis induced by either cerulein or IL-12 + IL-18. Furthermore, in mice, inhibition of activin conveys survival benefits in pancreatitis. In addition, serum activin levels were measured from a retrospective clinical cohort of pancreatitis patients and high activin levels in patients at admission are predictive of worse outcomes, indicated by longer overall hospital and intensive care unit stays. Taken together, activin is a novel candidate as a clinical marker to identify those acute pancreatitis patients with severe disease who would benefit from aggressive treatment and activin may be a therapeutic target in severe acute pancreatitis.
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29
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Cammareri P, Vincent DF, Hodder MC, Ridgway RA, Murgia C, Nobis M, Campbell AD, Varga J, Huels DJ, Subramani C, Prescott KLH, Nixon C, Hedley A, Barry ST, Greten FR, Inman GJ, Sansom OJ. TGFβ pathway limits dedifferentiation following WNT and MAPK pathway activation to suppress intestinal tumourigenesis. Cell Death Differ 2017; 24:1681-1693. [PMID: 28622298 PMCID: PMC5596428 DOI: 10.1038/cdd.2017.92] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 04/03/2017] [Accepted: 04/04/2017] [Indexed: 12/17/2022] Open
Abstract
Recent studies have suggested increased plasticity of differentiated cells within the intestine to act both as intestinal stem cells (ISCs) and tumour-initiating cells. However, little is known of the processes that regulate this plasticity. Our previous work has shown that activating mutations of Kras or the NF-κB pathway can drive dedifferentiation of intestinal cells lacking Apc. To investigate this process further, we profiled both cells undergoing dedifferentiation in vitro and tumours generated from these cells in vivo by gene expression analysis. Remarkably, no clear differences were observed in the tumours; however, during dedifferentiation in vitro we found a marked upregulation of TGFβ signalling, a pathway commonly mutated in colorectal cancer (CRC). Genetic inactivation of TGFβ type 1 receptor (Tgfbr1/Alk5) enhanced the ability of KrasG12D/+ mutation to drive dedifferentiation and markedly accelerated tumourigenesis. Mechanistically this is associated with a marked activation of MAPK signalling. Tumourigenesis from differentiated compartments is potently inhibited by MEK inhibition. Taken together, we show that tumours arising in differentiated compartments will be exposed to different suppressive signals, for example, TGFβ and blockade of these makes tumourigenesis more efficient from this compartment.
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Affiliation(s)
- Patrizia Cammareri
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - David F Vincent
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Michael C Hodder
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Rachel A Ridgway
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Claudio Murgia
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Max Nobis
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Andrew D Campbell
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Julia Varga
- Institute for Tumor Biology and Experimental Therapy, Georg-Speyer-Haus, Frankfurt 60596 Germany
| | - David J Huels
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Chithra Subramani
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Katie L H Prescott
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Colin Nixon
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Ann Hedley
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
| | - Simon T Barry
- Oncology IMED, AstraZeneca, Alderley Park SK10 4TG, Cambridge, UK
| | - Florian R Greten
- Institute for Tumor Biology and Experimental Therapy, Georg-Speyer-Haus, Frankfurt 60596 Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | - Gareth J Inman
- Division of Cancer Research, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
| | - Owen J Sansom
- Wnt Signaling and Colorectal Cancer Group, Cancer Research UK Beatson Institute, Garscube Estate, Glasgow G61 1BD, UK
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Glasgow G61 1QH, UK
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30
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Staudacher JJ, Bauer J, Jana A, Tian J, Carroll T, Mancinelli G, Özden Ö, Krett N, Guzman G, Kerr D, Grippo P, Jung B. Activin signaling is an essential component of the TGF-β induced pro-metastatic phenotype in colorectal cancer. Sci Rep 2017; 7:5569. [PMID: 28717230 PMCID: PMC5514149 DOI: 10.1038/s41598-017-05907-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 06/05/2017] [Indexed: 01/09/2023] Open
Abstract
Advanced colorectal cancer (CRC) remains a critical health care challenge worldwide. Various TGF-β superfamily members are important in colorectal cancer metastasis, but their signaling effects and predictive value have only been assessed in isolation. Here, we examine cross-regulation and combined functions of the two most prominent TGF-β superfamily members activin and TGF-β in advanced colorectal cancer. In two clinical cohorts we observed by immune-based assay that combined serum and tissue activin and TGF-β ligand levels predicts outcome in CRC patients and is superior to single ligand assessment. While TGF-β growth suppression is independent of activin, TGF-β treatment leads to increased activin secretion in colon cancer cells and TGF-β induced cellular migration is dependent on activin, indicating pathway cross-regulation and functional interaction in vitro. mRNA expression of activin and TGF-β pathway members were queried in silico using the TCGA data set. Coordinated ligand and receptor expression is common in solid tumors for activin and TGF-β pathway members. In conclusion, activin and TGF-β are strongly connected signaling pathways that are important in advanced CRC. Assessing activin and TGF-β signaling as a unit yields important insights applicable to future diagnostic and therapeutic interventions.
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Affiliation(s)
- Jonas J Staudacher
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Jessica Bauer
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Arundhati Jana
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Jun Tian
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Timothy Carroll
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Georgina Mancinelli
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Özkan Özden
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Nancy Krett
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Grace Guzman
- Department of Pathology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - David Kerr
- Nuffield Division of Clinical Laboratory Sciences, University of Oxford, Oxford, UK
| | - Paul Grippo
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Barbara Jung
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL, 60612, USA.
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31
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Zhang Y, Ma C, Zhao J, Xu H, Hou Q, Zhang H. Lactobacillus casei Zhang and vitamin K2 prevent intestinal tumorigenesis in mice via adiponectin-elevated different signaling pathways. Oncotarget 2017; 8:24719-24727. [PMID: 28445967 PMCID: PMC5421882 DOI: 10.18632/oncotarget.15791] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 02/15/2017] [Indexed: 12/11/2022] Open
Abstract
The incidence of colon cancer has increased considerably and the intestinal microbiota participate in the development of colon cancer. We showed that the L. casei Zhang or vitamin K2 (Menaquinone-7) intervention significantly alleviated intestinal tumor burden in mice. This was associated with increased serum adiponectin levels in both treatments. But osteocalcin level was only increased by L. casei Zhang. Furthermore, the anti-carcinogenic actions of L. casei Zhang were mediated by hepatic Chloride channel-3(CLCN3)/Nuclear Factor Kappa B(NF-κB) and intestinal Claudin15/Chloride intracellular channel 4(CLIC4)/Transforming Growth Factor Beta(TGF-β) signaling, while the vitamin K2 effect involved a hepatic Vitamin D Receptor(VDR)-phosphorylated AMPK signaling pathway. Fecal DNA sequencing by the Pacbio RSII method revealed there was significantly lower Helicobacter apodemus, Helicobacter mesocricetorum, Allobaculum stercoricanis and Adlercreutzia equolifaciens following both interventions compared to the model group. Moreover, different caecum acetic acid and butyric acid levels and enrichment of other specific microbes also determined the activity of the different regulatory pathways. Together these data show that L. casei Zhang and Vitamin K2 can suppress gut risk microbes and promote beneficial microbial metabolites to reduce colonic tumor development in mice.
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Affiliation(s)
- Yong Zhang
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, P. R. China
| | - Chen Ma
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, P. R. China
| | - Jie Zhao
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, P. R. China
| | - Haiyan Xu
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, P. R. China
| | - Qiangchuan Hou
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, P. R. China
| | - Heping Zhang
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, P. R. China
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32
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Principe DR, Diaz AM, Torres C, Mangan RJ, DeCant B, McKinney R, Tsao MS, Lowy A, Munshi HG, Jung B, Grippo PJ. TGFβ engages MEK/ERK to differentially regulate benign and malignant pancreas cell function. Oncogene 2017; 36:4336-4348. [PMID: 28368414 PMCID: PMC5537609 DOI: 10.1038/onc.2016.500] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 11/09/2016] [Accepted: 11/29/2016] [Indexed: 12/26/2022]
Abstract
While TGFβ signals are anti-proliferative in benign and well-differentiated pancreatic cells, TGFβ appears to promote the progression of advanced cancers. To better understand dysregulation of the TGFβ pathway, we first generated mouse models of neoplastic disease with TGFβ receptor deficiencies. These models displayed reduced levels of pERK irrespective of KRAS mutation. Furthermore, exogenous TGFβ led to rapid and sustained TGFBR1-dependent ERK phosphorylation in benign pancreatic duct cells. Similar to results that our group has published in colon cancer cells, inhibition of ERK phosphorylation in duct cells mitigated TGFβ-induced upregulation of growth suppressive pSMAD2 and p21, prevented downregulation of the pro-growth signal CDK2 and ablated TGFβ-induced EMT. These observations suggest that ERK is a key factor in growth suppressive TGFβ signals, yet may also contribute to detrimental TGFβ signaling such as EMT. In neoplastic PanIN cells, pERK was not necessary for either TGFβ-induced pSMAD2 phosphorylation or CDK2 repression, but was required for upregulation of p21 and EMT indicating a partial divergence between TGFβ and MEK/ERK in early carcinogenesis. In cancer cells, pERK had no effect on TGFβ-induced upregulation of pSMAD2 and p21, suggesting the two pathways have completely diverged with respect to the cell cycle. Furthermore, inhibition of pERK both reduced levels of CDK2 and prevented EMT independent of exogenous TGFβ, consistent with most observations identifying pERK as a tumor promoter. Combined, these data suggest that during carcinogenesis pERK initially facilitates and later antagonizes TGFβ-mediated cell cycle arrest, yet remains critical for the pathological, EMT-inducing arm of TGFβ signaling.
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Affiliation(s)
- D R Principe
- University of Illinois College of Medicine, Chicago, IL, USA
| | - A M Diaz
- Department of Medicine, University of Illinois, Chicago, IL, USA
| | - C Torres
- Department of Medicine, University of Illinois, Chicago, IL, USA
| | - R J Mangan
- Department of Medicine, University of Illinois, Chicago, IL, USA
| | - B DeCant
- Department of Medicine, University of Illinois, Chicago, IL, USA
| | - R McKinney
- Department of Medicine, University of Illinois, Chicago, IL, USA
| | - M-S Tsao
- Ontario Cancer Institute/Princess Margaret Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - A Lowy
- Department of Surgery, University of California San Diego, San Diego, CA, USA
| | - H G Munshi
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - B Jung
- Department of Medicine, University of Illinois, Chicago, IL, USA
| | - P J Grippo
- Department of Medicine, University of Illinois, Chicago, IL, USA
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33
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Jung B, Staudacher JJ, Beauchamp D. Transforming Growth Factor β Superfamily Signaling in Development of Colorectal Cancer. Gastroenterology 2017; 152:36-52. [PMID: 27773809 PMCID: PMC5550896 DOI: 10.1053/j.gastro.2016.10.015] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 09/29/2016] [Accepted: 10/11/2016] [Indexed: 02/07/2023]
Abstract
Transforming growth factor (TGF)-β cytokines signal via a complex network of pathways to regulate proliferation, differentiation, adhesion, migration, and other functions in many cell types. A high percentage of colorectal tumors contain mutations that disrupt TGF-β family member signaling. We review how TGF-β family member signaling is altered during development of colorectal cancer, models of study, interaction of pathways, and potential therapeutic strategies.
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Affiliation(s)
- Barbara Jung
- University of Illinois at Chicago, Chicago, Illinois.
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34
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Bauer J, Staudacher JJ, Krett NL, Jung B. Commentary: Activin and TGFβ use diverging mitogenic signaling in advanced colon cancer. JOURNAL OF RARE DISEASES RESEARCH & TREATMENT 2016; 1:43-45. [PMID: 27738666 PMCID: PMC5058340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- Jessica Bauer
- Correspondence: Department of Medicine,
Division of Gastroenterology and Hepatology, University of Illinois at Chicago,
Chicago, Illinois, USA,
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