1
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Sun Y, Chen W, Torphy RJ, Yao S, Zhu G, Lin R, Lugano R, Miller EN, Fujiwara Y, Bian L, Zheng L, Anand S, Gao F, Zhang W, Ferrara SE, Goodspeed AE, Dimberg A, Wang XJ, Edil BH, Barnett CC, Schulick RD, Chen L, Zhu Y. Blockade of the CD93 pathway normalizes tumor vasculature to facilitate drug delivery and immunotherapy. Sci Transl Med 2021; 13:eabc8922. [PMID: 34321321 PMCID: PMC8749958 DOI: 10.1126/scitranslmed.abc8922] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 03/23/2021] [Accepted: 05/20/2021] [Indexed: 12/13/2022]
Abstract
The immature and dysfunctional vascular network within solid tumors poses a substantial obstacle to immunotherapy because it creates a hypoxic tumor microenvironment that actively limits immune cell infiltration. The molecular basis underpinning this vascular dysfunction is not fully understood. Using genome-scale receptor array technology, we showed here that insulin-like growth factor binding protein 7 (IGFBP7) interacts with its receptor CD93, and we subsequently demonstrated that this interaction contributes to abnormal tumor vasculature. Both CD93 and IGFBP7 were up-regulated in tumor-associated endothelial cells. IGFBP7 interacted with CD93 via a domain different from multimerin-2, the known ligand for CD93. In two mouse tumor models, blockade of the CD93/IGFBP7 interaction by monoclonal antibodies promoted vascular maturation to reduce leakage, leading to reduced tumor hypoxia and increased tumor perfusion. CD93 blockade in mice increased drug delivery, resulting in an improved antitumor response to gemcitabine or fluorouracil. Blockade of the CD93 pathway triggered a substantial increase in intratumoral effector T cells, thereby sensitizing mouse tumors to immune checkpoint therapy. Last, analysis of samples from patients with cancer under anti-programmed death 1/programmed death-ligand 1 treatment revealed that overexpression of the IGFBP7/CD93 pathway was associated with poor response to therapy. Thus, our study identified a molecular interaction involved in tumor vascular dysfunction and revealed an approach to promote a favorable tumor microenvironment for therapeutic intervention.
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Affiliation(s)
- Yi Sun
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Wei Chen
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
- Cancer Institute of Integrated Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang 310012, P. R. China
| | - Robert J Torphy
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Sheng Yao
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Gefeng Zhu
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Ronggui Lin
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Roberta Lugano
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Emily N Miller
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Yuki Fujiwara
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Li Bian
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Linghua Zheng
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Sudarshan Anand
- Department of Cell, Development and Cancer Biology, Oregon Health and Science University, Portland, OR 97239, USA
| | - Fan Gao
- Caltech Bioinformatics Resource Center at Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USA
| | - Weizhou Zhang
- Department of Pathology, University of Florida, Gainesville, FL 32610, USA
| | - Sarah E Ferrara
- University of Colorado Comprehensive Cancer Center, Aurora, CO 80045, USA
| | - Andrew E Goodspeed
- University of Colorado Comprehensive Cancer Center, Aurora, CO 80045, USA
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Anna Dimberg
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Xiao-Jing Wang
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
- Veterans Affairs Medical Center, VA Eastern Colorado Health Care System, Aurora, CO 80045, USA
| | - Barish H Edil
- Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Carlton C Barnett
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Richard D Schulick
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Lieping Chen
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA.
| | - Yuwen Zhu
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
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2
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Forbes BE, Blyth AJ, Wit JM. Disorders of IGFs and IGF-1R signaling pathways. Mol Cell Endocrinol 2020; 518:111035. [PMID: 32941924 DOI: 10.1016/j.mce.2020.111035] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/02/2020] [Accepted: 09/11/2020] [Indexed: 12/12/2022]
Abstract
The insulin-like growth factor (IGF) system comprises two ligands, IGF-I and IGF-II, that regulate multiple physiological processes, including mammalian development, metabolism and growth, through the type 1 IGF receptor (IGF-1R). The growth hormone (GH)-IGF-I axis is the major regulator of longitudinal growth. IGF-II is expressed in many tissues, notably the placenta, to regulate human pre- and post-natal growth and development. This review provides a brief introduction to the IGF system and summarizes findings from reports arising from recent larger genomic sequencing studies of human genetic mutations in IGF1 and IGF2 and genes of proteins regulating IGF action, namely the IGF-1R, IGF-1R signaling pathway components and the IGF binding proteins (IGFBPs). A perspective on the effect of homozygous mutations on structure and function of the IGFs and IGF-1R is also given and this is related to the effects on growth.
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Affiliation(s)
- Briony E Forbes
- Discipline of Medical Biochemistry, Flinders Health and Medical Research Institute, Flinders University, Australia.
| | - Andrew J Blyth
- Discipline of Medical Biochemistry, Flinders Health and Medical Research Institute, Flinders University, Australia
| | - Jan M Wit
- Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
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3
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Thomas D, Radhakrishnan P. Role of Tumor and Stroma-Derived IGF/IGFBPs in Pancreatic Cancer. Cancers (Basel) 2020; 12:E1228. [PMID: 32414222 PMCID: PMC7281733 DOI: 10.3390/cancers12051228] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/09/2020] [Accepted: 05/11/2020] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer (PC) is the utmost stroma-rich cancer, which is accompanied by fibrotic reactions that stimulate interactions between tumor cells and stroma to promote tumor progression. Considerable research evidence denotes that insulin-like growth factor (IGF)/IGF binding proteins (IGFBP) signaling axis facilitate tumor growth, metastasis, drug resistance, and thereby facilitate PC into an advanced stage. The six members of IGFBPs were initially considered as passive carriers of free IGFs; however, current evidence revealed their functions beyond the endocrine role in IGF transport. Though numerous efforts have been made in blocking IGF/IGFBPs, the targeted therapies remain unsuccessful due to the complexity of tumor-stromal interactions in the pancreas. In this review, we explore the emerging evidence of the various roles of the tumor as well as stroma derived IGF/IGFBPs and highlight as a novel therapeutic target against PC progression.
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Affiliation(s)
- Divya Thomas
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-6805, USA;
| | - Prakash Radhakrishnan
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-6805, USA;
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Genetics, Cell Biology, and Anatomy, University of Nebraska Medical Center, Omaha, NE 68198, USA
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4
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Liu Y, Zhang M, He T, Yang W, Wang L, Zhang L, Guo M. Epigenetic silencing of IGFBPL1 promotes esophageal cancer growth by activating PI3K-AKT signaling. Clin Epigenetics 2020; 12:22. [PMID: 32041673 PMCID: PMC7011530 DOI: 10.1186/s13148-020-0815-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 01/22/2020] [Indexed: 12/14/2022] Open
Abstract
Background There are seven insulin-like growth factor binding proteins (IGFBPs) that bind insulin-like growth factors (IGFs). IGFBP like protein1 (IGFBPL1) is a new member of this family. The function and mechanism of IGFBPL1 in esophageal cancer remains to be elucidated. Methods Eight esophageal cancer cell lines, 114 cases of esophageal dysplasia, and 501 cases of primary esophageal cancer samples were examined in this study. Methylation-specific polymerase chain reaction (MSP), immunohistochemistry, Western blot, flow cytometry, RNA interference assay, and xenograft mouse models were employed. Results The expression of IGFBPL1was lost and complete methylation was found in KYSE150 and KYSE410 cells. Reduced expression and partial methylation of IGFBPL1 was found in Bic1, KYSE140, KYSE450, KYSE520, and COLO680N cells. High expression and unmethylation was detected in KYSE510 cells. Restoration of IGFBPL1 expression was found in KYSE150 and KYSE410 cells and the expression of IGFBPL1 was increased in Bic1, KYSE140, KYSE450, KYSE520, and COLO680N cells, after 5-AZA-2′-deoxycytidine treatment. IGFBPL1 was methylated in 47.3% (53/114) of esophageal dysplasia and 49.1% (246/501) of human primary esophageal squamous cell carcinoma (ESCC). Methylation of IGFBPL1 was significantly associated with TNM stage (p = 0.012), and tumor size (p = 0.009). IGFBPL1 inhibited esophageal cancer cell clonal formation and proliferation and induced cell apoptosis and G1/S phase arrest. Further study found that IGFBPL1 is involved in PI3K-AKT signaling and IGFBPL1 suppressed human ESCC xenografts growth in mice. Conclusion IGFBPL1 suppresses esophageal cancer cell growth by inhibiting PI3K-AKT signaling in vitro and in vivo. IGFBPL1 is a novel tumor suppressor in human esophageal cancer.
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Affiliation(s)
- Yingge Liu
- Department of Life Sciences and Technology, Xinxiang Medical University, Jinsui East Road, Xinxiang, 453003, Henan, People's Republic of China.,Department of Gastroenterology & Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Meiying Zhang
- Department of Gastroenterology & Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Tao He
- Department of Pathology, Characteristic Medical Center of the Chinese People's Armed Police Force, Tianjin, 300162, People's Republic of China
| | - Weili Yang
- Department of Gastroenterology & Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Lidong Wang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, 40 Daxue Road, Zhengzhou, Henan, 450052, People's Republic of China
| | - Lirong Zhang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, 40 Daxue Road, Zhengzhou, Henan, 450052, People's Republic of China
| | - Mingzhou Guo
- Department of Gastroenterology & Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853, People's Republic of China. .,State Key Laboratory of Esophageal Cancer Prevention and Treatment, 40 Daxue Road, Zhengzhou, Henan, 450052, People's Republic of China.
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5
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Naghavi AO, Kim Y, Yang GQ, Ahmed KA, Caudell JJ. Alterations in genetic pathways following radiotherapy for head and neck cancer. Head Neck 2019; 42:312-320. [PMID: 31833149 DOI: 10.1002/hed.26004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 10/11/2019] [Accepted: 10/18/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Radiotherapy (RT) is an integral component in the treatment of head and neck cancer (HNC).We hypothesized there would be alterations in gene-expression and pathway activity in HNC samples obtained in recurrent HNC that were previously treated with RT, when compared to RT-naïve disease. METHODS Patient data was abstracted from a prospectively maintained database. Linear-microarray analysis and supervised gene-set enrichment-analysis were employed to compare RT-naive and recurrent disease after prior-RT. RESULTS A total of 157 patients were analyzed, 96 (61%) were RT-naive and 61 (39%) had RT.After radiation, there was upregulation of genes associated with angiogenesis, protein-translation-machinery, cell-cycle regulation, and growth factors, and downregulation associated with Myc activity, and hypoxic response (all P < .001).Previously irradiated HNC was associated with downregulation in 19/42 genes in the Wnt/B-catenin-pathway (P = .045)and 119/199 genes involved in the MYC target pathway (P = .024). CONCLUSION Patients with recurrences salvaged surgically post-RT had significant alterations in gene-expression and in Wnt/B-catenin and MYC-target pathways. These pathways may represent potential targets to prevent development of resistance to RT.
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Affiliation(s)
- Arash O Naghavi
- Department of Radiation Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Youngchul Kim
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - George Q Yang
- Department of Radiation Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Kamran A Ahmed
- Department of Radiation Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Jimmy J Caudell
- Department of Radiation Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
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6
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Brunner C, Davies NM, Martin RM, Eeles R, Easton D, Kote‐Jarai Z, Al Olama AA, Benlloch S, Muir K, Giles G, Wiklund F, Gronberg H, Haiman CA, Schleutker J, Nordestgaard BG, Travis RC, Neal D, Donovan J, Hamdy FC, Pashayan N, Khaw K, Stanford JL, Blot WJ, Thibodeau S, Maier C, Kibel AS, Cybulski C, Cannon‐Albright L, Brenner H, Park J, Kaneva R, Batra J, Teixeira MR, Pandha H, Zuccolo L. Alcohol consumption and prostate cancer incidence and progression: A Mendelian randomisation study. Int J Cancer 2017; 140:75-85. [PMID: 27643404 PMCID: PMC5111609 DOI: 10.1002/ijc.30436] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 07/04/2016] [Accepted: 07/29/2016] [Indexed: 12/25/2022]
Abstract
Prostate cancer is the most common cancer in men in developed countries, and is a target for risk reduction strategies. The effects of alcohol consumption on prostate cancer incidence and survival remain unclear, potentially due to methodological limitations of observational studies. In this study, we investigated the associations of genetic variants in alcohol-metabolising genes with prostate cancer incidence and survival. We analysed data from 23,868 men with prostate cancer and 23,051 controls from 25 studies within the international PRACTICAL Consortium. Study-specific associations of 68 single nucleotide polymorphisms (SNPs) in 8 alcohol-metabolising genes (Alcohol Dehydrogenases (ADHs) and Aldehyde Dehydrogenases (ALDHs)) with prostate cancer diagnosis and prostate cancer-specific mortality, by grade, were assessed using logistic and Cox regression models, respectively. The data across the 25 studies were meta-analysed using fixed-effect and random-effects models. We found little evidence that variants in alcohol metabolising genes were associated with prostate cancer diagnosis. Four variants in two genes exceeded the multiple testing threshold for associations with prostate cancer mortality in fixed-effect meta-analyses. SNPs within ALDH1A2 associated with prostate cancer mortality were rs1441817 (fixed effects hazard ratio, HRfixed = 0.78; 95% confidence interval (95%CI):0.66,0.91; p values = 0.002); rs12910509, HRfixed = 0.76; 95%CI:0.64,0.91; p values = 0.003); and rs8041922 (HRfixed = 0.76; 95%CI:0.64,0.91; p values = 0.002). These SNPs were in linkage disequilibrium with each other. In ALDH1B1, rs10973794 (HRfixed = 1.43; 95%CI:1.14,1.79; p values = 0.002) was associated with prostate cancer mortality in men with low-grade prostate cancer. These results suggest that alcohol consumption is unlikely to affect prostate cancer incidence, but it may influence disease progression.
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Affiliation(s)
- Clair Brunner
- School of Social and Community MedicineUniversity of BristolBristolUnited Kingdom
- MRC/University of Bristol Integrative Epidemiology Unit, University of BristolBristolUnited Kingdom
| | - Neil M. Davies
- School of Social and Community MedicineUniversity of BristolBristolUnited Kingdom
- MRC/University of Bristol Integrative Epidemiology Unit, University of BristolBristolUnited Kingdom
| | - Richard M. Martin
- School of Social and Community MedicineUniversity of BristolBristolUnited Kingdom
- MRC/University of Bristol Integrative Epidemiology Unit, University of BristolBristolUnited Kingdom
- The NIHR Bristol Nutrition Biomedical Research UnitUniversity Hospitals Bristol NHS Foundation Trust and the University of BristolBristolUnited Kingdom
| | - Rosalind Eeles
- The Institute of Cancer ResearchLondonSM2 5NGUnited Kingdom
- Royal Marsden NHS Foundation TrustLondonSW3 6JJUnited Kingdom
| | - Doug Easton
- Strangeways Laboratory, Department of Public Health and Primary CareCentre for Cancer Genetic Epidemiology, University of CambridgeWorts CausewayCambridgeUnited Kingdom
| | | | - Ali Amin Al Olama
- Strangeways Laboratory, Department of Public Health and Primary CareCentre for Cancer Genetic Epidemiology, University of CambridgeWorts CausewayCambridgeUnited Kingdom
| | - Sara Benlloch
- Strangeways Laboratory, Department of Public Health and Primary CareCentre for Cancer Genetic Epidemiology, University of CambridgeWorts CausewayCambridgeUnited Kingdom
| | - Kenneth Muir
- Institute of Population Health, University of ManchesterManchesterUnited Kingdom
| | - Graham Giles
- The Cancer Council VictoriaCancer Epidemiology Centre1 Rathdowne StreetCarltonVicAustralia
- Centre for Molecular, Environmental, Genetic and Analytic EpidemiologyThe University of MelbourneVicAustralia
| | - Fredrik Wiklund
- Department of Medical Epidemiology and BiostatisticsKarolinska InstituteStockholmSweden
| | - Henrik Gronberg
- Department of Medical Epidemiology and BiostatisticsKarolinska InstituteStockholmSweden
| | - Christopher A. Haiman
- Department of Preventive Medicine, Keck School of MedicineUniversity of Southern California/Norris Comprehensive Cancer CenterLos AngelesCA
| | - Johanna Schleutker
- Department of Medical Biochemistry and GeneticsUniversity of TurkuTurkuFinland
- Institute of Biomedical Technology/BioMediTech, University of Tampere and FimLab LaboratoriesTampereFinland
| | - Børge G. Nordestgaard
- Department of Clinical BiochemistryHerlev Hospital, Copenhagen University HospitalHerlev Ringvej 75DK‐2730HerlevDenmark
| | - Ruth C. Travis
- Cancer Epidemiology Unit, Nuffield Department of Clinical MedicineUniversity of OxfordOxfordUnited Kingdom
| | - David Neal
- Surgical Oncology (Uro‐Oncology: S4)University of Cambridge, Box 279, Addenbrooke's HospitalHills RoadCambridgeUnited Kingdom
- Cancer Research UK Cambridge Research Institute, Li Ka Shing CentreCambridgeUnited Kingdom
| | - Jenny Donovan
- School of Social and Community MedicineUniversity of BristolBristolUnited Kingdom
| | - Freddie C. Hamdy
- Nuffield Department of SurgeryUniversity of OxfordOxfordUnited Kingdom
| | - Nora Pashayan
- Strangeways Laboratory, Department of OncologyCentre for Cancer Genetic Epidemiology, University of CambridgeWorts CausewayCambridgeUnited Kingdom
- Department of Applied Health ResearchUniversity College London1‐19 Torrington PlaceLondonWC1E 7HBUnited Kingdom
| | - Kay‐Tee Khaw
- Cambridge Institute of Public Health, University of CambridgeForvie SiteRobinson WayCambridgeCB2 0SRUnited Kingdom
| | - Janet L. Stanford
- Division of Public Health SciencesFred Hutchinson Cancer Research CenterSeattleWA
- Department of Epidemiology, School of Public HealthUniversity of WashingtonSeattleWA
| | - William J. Blot
- International Epidemiology Institute1455 Research Blvd, Suite 550RockvilleMD
| | | | - Christiane Maier
- Department of UrologyUniversity Hospital UlmGermany
- Institute of Human Genetics University Hospital UlmGermany
| | - Adam S. Kibel
- Brigham and Women's Hospital/Dana‐Farber Cancer Institute45 Francis Street‐ASB II‐3BostonMA
- Washington UniversitySt LouisMO
| | - Cezary Cybulski
- Department of Genetics and PathologyInternational Hereditary Cancer Center, Pomeranian Medical UniversitySzczecinPoland
| | - Lisa Cannon‐Albright
- Division of Genetic Epidemiology, Department of MedicineUniversity of Utah School of Medicine, Salt Lake City, UT
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging ResearchGerman Cancer Research Center (DKFZ)HeidelbergGermany
- Division of Preventive OncologyGerman Cancer Research Center (DKFZ)HeidelbergGermany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ)Heidelberg, Germany
| | - Jong Park
- Division of Cancer Prevention and ControlH. Lee Moffitt Cancer Center12902 Magnolia DrTampaFL
| | - Radka Kaneva
- Department of Medical Chemistry and Biochemistry, Molecular Medicine CenterMedical University Sofia2 Zdrave StSofia1431Bulgaria
| | - Jyotsna Batra
- Australian Prostate Cancer Research Centre‐Qld, Institute of Health and Biomedical Innovation and Schools of Life Science and Public Health, Queensland University of TechnologyBNEAustralia
| | - Manuel R. Teixeira
- Department of GeneticsPortuguese Oncology Institute, Porto, Portugal and Biomedical Sciences Institute (ICBAS), Porto UniversityPortoPortugal
| | - Hardev Pandha
- The University of SurreyGuildfordSurreyGU2 7XHUnited Kingdom
| | | | - Luisa Zuccolo
- School of Social and Community MedicineUniversity of BristolBristolUnited Kingdom
- MRC/University of Bristol Integrative Epidemiology Unit, University of BristolBristolUnited Kingdom
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7
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Modepalli V, Hinds LA, Sharp JA, Lefevre C, Nicholas KR. Marsupial tammar wallaby delivers milk bioactives to altricial pouch young to support lung development. Mech Dev 2016; 142:22-29. [PMID: 27639961 PMCID: PMC5161226 DOI: 10.1016/j.mod.2016.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 08/26/2016] [Accepted: 08/26/2016] [Indexed: 11/27/2022]
Abstract
Our research is exploiting the marsupial as a model to understand the signals required for lung development. Marsupials have a unique reproductive strategy, the mother gives birth to altricial neonate with an immature lung and the changes in milk composition during lactation in marsupials appears to provide bioactives that can regulate diverse aspects of lung development, including branching morphogenesis, cell proliferation and cell differentiation. These effects are seen with milk collected between 25 and 100days postpartum. To better understand the temporal effects of milk composition on postnatal lung development we used a cross-fostering technique to restrict the tammar pouch young to milk composition not extending beyond day 25 for 45days of its early postnatal life. These particular time points were selected as our previous study showed that milk protein collected prior to ~day 25 had no developmental effect on mouse embryonic lungs in culture. The comparative analysis of the foster group and control young at day 45 postpartum demonstrated that foster pouch young had significantly reduced lung size. The lungs in fostered young were comprised of large intermediate tissue, had a reduced size of airway lumen and a higher percentage of parenchymal tissue. In addition, expression of marker genes for lung development (BMP4, WNT11, AQP-4, HOPX and SPB) were significantly reduced in lungs from fostered young. Further, to identify the potential bioactive expressed by mammary gland that may have developmental effect on pouch young lungs, we performed proteomics analysis on tammar milk through mass-spectrometry and listed the potential bioactives (PDGF, IGFBP5, IGFBPL1 and EGFL6) secreted in milk that may be involved in regulating pouch young lung development. The data suggest that postnatal lung development in the tammar young is most likely regulated by maternal signalling factors supplied through milk.
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Affiliation(s)
- Vengamanaidu Modepalli
- Department of Ecology, Evolution and Behavior, Institute of Life Science, Hebrew University, Edmund J Safra Campus, Jerusalem, Israel.
| | - Lyn A Hinds
- CSIRO Ecosystem Sciences, GPO Box 1700, Canberra, ACT 2601, Australia.
| | - Julie A Sharp
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, Australia.
| | - Christophe Lefevre
- Walter Eliza Hall Institute, 1G Royal Parade, Parkville, Victoria 3052, Australia.
| | - Kevin R Nicholas
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, Australia.
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8
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Amasdl S, Natiq A, Elalaoui SC, Sbiti A, Liehr T, Sefiani A. Insulin-like growth factor type 1 deficiency in a Moroccan patient with de novo inverted duplication 9p24p12 and developmental delay: a case report. J Med Case Rep 2016; 10:122. [PMID: 27178284 PMCID: PMC4868013 DOI: 10.1186/s13256-016-0830-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 02/11/2016] [Indexed: 11/30/2022] Open
Abstract
Background 9p duplication is a structural chromosome abnormality, described in more than 150 patients to date. In most cases the duplicated segment was derived from a parent being a reciprocal translocation carrier. However, about 15 cases with de novo 9p duplication have been reported previously. Clinically, this condition is characterized by mental retardation, short stature, developmental delay, facial dysmorphism, hand and toe anomalies, heart defects and/or ocular manifestations. Case presentation We report here the case of a 2-year-old Moroccan girl with a de novo duplication of 9p24 to p12. Clinical manifestations included failure to thrive, psychomotor delay, microcephaly, dysmorphic features, equinus feet, and umbilical hernia. Further clinical investigations showed an insulin-like growth factor type 1 deficiency. Banding cytogenetics identified a derivative chromosome 9, with an abnormally elongated short arm. Molecular cytogenetics based on multicolor banding probes characterized an inverted duplication 9p24 to p12 involving several genes especially an insulin-like growth factor binding protein named insulin-like growth factor binding protein-like 1, which seemed to be overexpressed, leading to the insulin-like growth factor deficiency in our patient. Conclusions This study showed that insulin-like growth factor type 1 deficiency can be another feature of 9p duplication, suggesting a likely involvement of insulin-like growth factor binding protein-like 1 overexpression in growth delay. However, further studies of the gene expressions are needed to better understand the phenotype-karyotype correlations.
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Affiliation(s)
- Saadia Amasdl
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, Rabat, Morocco. .,Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Morocco.
| | - Abdelhafid Natiq
- Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Morocco.,Faculté des Sciences, Université Mohammed V, Agdal, Rabat, Morocco
| | | | - Aziza Sbiti
- Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Morocco
| | - Thomas Liehr
- Institute of Human Genetics, University Hospital Jena, Jena, Germany
| | - Abdelaziz Sefiani
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, Rabat, Morocco.,Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Morocco
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9
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A fourteen gene GBM prognostic signature identifies association of immune response pathway and mesenchymal subtype with high risk group. PLoS One 2013; 8:e62042. [PMID: 23646114 PMCID: PMC3639942 DOI: 10.1371/journal.pone.0062042] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 03/18/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Recent research on glioblastoma (GBM) has focused on deducing gene signatures predicting prognosis. The present study evaluated the mRNA expression of selected genes and correlated with outcome to arrive at a prognostic gene signature. METHODS Patients with GBM (n = 123) were prospectively recruited, treated with a uniform protocol and followed up. Expression of 175 genes in GBM tissue was determined using qRT-PCR. A supervised principal component analysis followed by derivation of gene signature was performed. Independent validation of the signature was done using TCGA data. Gene Ontology and KEGG pathway analysis was carried out among patients from TCGA cohort. RESULTS A 14 gene signature was identified that predicted outcome in GBM. A weighted gene (WG) score was found to be an independent predictor of survival in multivariate analysis in the present cohort (HR = 2.507; B = 0.919; p<0.001) and in TCGA cohort. Risk stratification by standardized WG score classified patients into low and high risk predicting survival both in our cohort (p = <0.001) and TCGA cohort (p = 0.001). Pathway analysis using the most differentially regulated genes (n = 76) between the low and high risk groups revealed association of activated inflammatory/immune response pathways and mesenchymal subtype in the high risk group. CONCLUSION We have identified a 14 gene expression signature that can predict survival in GBM patients. A network analysis revealed activation of inflammatory response pathway specifically in high risk group. These findings may have implications in understanding of gliomagenesis, development of targeted therapies and selection of high risk cancer patients for alternate adjuvant therapies.
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Lin YX, Baladandayuthapani V, Bonato V, Do KA. Estimating Shared Copy Number Aberrations for Array CGH Data: The Linear-Median Method. Cancer Inform 2010; 9:229-49. [PMID: 21082039 PMCID: PMC2978932 DOI: 10.4137/cin.s5614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
MOTIVATION Existing methods for estimating copy number variations in array comparative genomic hybridization (aCGH) data are limited to estimations of the gain/loss of chromosome regions for single sample analysis. We propose the linear-median method for estimating shared copy numbers in DNA sequences across multiple samples, demonstrate its operating characteristics through simulations and applications to real cancer data, and compare it to two existing methods. RESULTS Our proposed linear-median method has the power to estimate common changes that appear at isolated single probe positions or very short regions. Such changes are hard to detect by current methods. This new method shows a higher rate of true positives and a lower rate of false positives. The linear-median method is non-parametric and hence is more robust in estimating copy number. Additionally the linear-median method is easily computable for practical aCGH data sets compared to other copy number estimation methods.
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Affiliation(s)
- Y-X Lin
- Centre for Statistical and Survey Methodology, School of Mathematics and Applied Statistics, University of Wollongong NSW 2522, Australia
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Muráni E, Murániová M, Ponsuksili S, Schellander K, Wimmers K. Identification of genes differentially expressed during prenatal development of skeletal muscle in two pig breeds differing in muscularity. BMC DEVELOPMENTAL BIOLOGY 2007; 7:109. [PMID: 17908293 PMCID: PMC2147030 DOI: 10.1186/1471-213x-7-109] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2007] [Accepted: 10/01/2007] [Indexed: 01/28/2023]
Abstract
Background Postnatal muscle growth is largely depending on the number and size of muscle fibers. The number of myofibers and to a large extent their metabolic and contractile properties, which also influence their size, are determined prenatally during the process of myogenesis. Hence identification of genes and their networks governing prenatal development of skeletal muscles will provide insight into the control of muscle growth and facilitate finding the source of its variation. So far most of the genes involved in myogenesis were identified by in vitro studies using gene targeting and transgenesis. Profiling of transcriptome changes during the myogenesis in vivo promises to obtain a more complete picture. In order to address this, we performed transcriptome profiling of prenatal skeletal muscle using differential display RT-PCR as on open system with the potential to detect novel transcripts. Seven key stages of myogenesis (days 14, 21, 35, 49, 63, 77 and 91 post conception) were studied in two breeds, Pietrain and Duroc, differing markedly in muscularity and muscle structure. Results Eighty prominent cDNA fragments were sequenced, 43 showing stage-associated and 37 showing breed-associated differences in the expression, respectively. Out of the resulting 85 unique expressed sequence tags, EST, 52 could be assigned to known genes. The most frequent functional categories represented genes encoding myofibrillar proteins (8), genes involved in cell adhesion, cell-cell signaling and extracellular matrix synthesis/remodeling (8), genes regulating gene expression (8), and metabolism genes (8). Some of the EST that showed no identity to any known transcripts in the databases are located in introns of known genes and most likely represent novel exons (e.g. HMGA2). Expression of thirteen transcripts along with five reference genes was further analyzed by means of real-time quantitative PCR. Nine of the target transcripts showed higher than twofold differences in the expression between the two breeds (GATA3, HMGA2, NRAP, SMC6L1, SPP1, RAB6IP2, TJP1 and two EST). Conclusion The present study revealed several genes and novel transcripts not previously associated with myogenesis and expands our knowledge of genetic factors operating during myogenesis. Genes that exhibited differences between the divergent breeds represent candidate genes for muscle growth and structure.
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Affiliation(s)
- Eduard Muráni
- Research Institute for the Biology of Farm Animals (FBN), Research Unit Molecular Biology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Mária Murániová
- Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany
| | - Siriluck Ponsuksili
- Research Institute for the Biology of Farm Animals (FBN), Research Group Functional Genomics, 18196 Dummerstorf, Germany
| | - Karl Schellander
- Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany
| | - Klaus Wimmers
- Research Institute for the Biology of Farm Animals (FBN), Research Unit Molecular Biology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
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Smith P, Nicholson LJ, Syed N, Payne A, Hiller L, Garrone O, Occelli M, Gasco M, Crook T. Epigenetic inactivation implies independent functions for insulin-like growth factor binding protein (IGFBP)-related protein 1 and the related IGFBPL1 in inhibiting breast cancer phenotypes. Clin Cancer Res 2007; 13:4061-8. [PMID: 17634530 DOI: 10.1158/1078-0432.ccr-06-3052] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To analyze epigenetic regulation of two related genes, insulin-like growth factor binding protein-related protein 1 (IGFBP-rP1) and IGFBPL1, and its significance as a determinant of clinical phenotypes in human breast cancer. EXPERIMENTAL DESIGN We have investigated the expression and epigenetic regulation of IGFBP-rP1 and IGFBPL1 in human breast cancer cell lines and primary and metastatic carcinomas. RESULTS Expression of IGFBP-rP1 and IGFBPL1 is down-regulated in breast cancer cell lines. Aberrant methylation in the CpG islands of each gene correlates well with loss of expression at the mRNA level. Analysis of methylation in DNA isolated from human primary breast tumors showed that methylation in either gene was associated with a worse overall survival (OS; P=0.008) and disease-free survival (DFS) following surgery (P=0.04) and worse DFS following adjuvant chemotherapy (P=0.01). Methylation of IGFBP-rP1 alone was associated with a trend toward decreased OS (P=0.10) and decreased DFS (P=0.25). Methylation in IGFBPL1 was clearly associated with worse OS (P=0.001) and DFS (P<0.0001). Methylation in either IGFBP-rP1 or IGFBPL1 was significantly associated with nodal disease (P<0.001). CONCLUSIONS Expression of IGFBP-rP1 and IGFBPL1 is regulated by aberrant hypermethylation in breast cancer, implying that inactivation of these genes is involved in the pathogenesis of this malignancy. Analysis of methylation of these genes may have utility in prediction of clinical phenotypes, such as nodal disease and response to chemotherapy.
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Affiliation(s)
- Paul Smith
- The Breakthrough Toby Robins Breast Cancer Research Centre at The Institute of Cancer Research, Mary-Jean Mitchell Green Building, Chester Beatty Laboratories, London, UK
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Kuerner KM, Steinbeisser H. Expression analysis of IGFBP-rP10, IGFBP-like and Mig30 in early Xenopus development. Dev Dyn 2006; 235:2861-7. [PMID: 16894599 DOI: 10.1002/dvdy.20910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
To date, five members of the insulin-like growth factor-binding protein (IGFBP) superfamily have been described in Xenopus laevis. Here, we report the isolation of two new IGFBPs: xIGFBP-rP10, and xIGFBP-like. The proteins share the same domain architecture, and together with Mig30, form a subgroup within the IGFBP superfamily. Temporal expression analysis shows that they are expressed differentially during early development. xIGFBP-rP10 is continuously expressed, whereas Mig30 expression peaks during gastrulation. IGFBP-like is expressed from neurulation onward. The three genes have characteristic spatial expression domains, which overlap in some regions. Both xIGFBP-rP10 and Mig30 are expressed on the dorsal side of the embryo during gastrulation. Later, xIGFBP-rP10 is expressed in the notochord, the floor plate, the somites, and the fin. xIGFBP-like expression is seen primarily in the developing central nervous system and overlaps with Mig30 expression at the end of neurulation in the developing somites and in tail bud stages in the eyes.
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