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Engel RM, Jardé T, Oliva K, Kerr G, Chan WH, Hlavca S, Nickless D, Archer SK, Yap R, Ranchod P, Bell S, Niap A, Koulis C, Chong A, Wilkins S, Dale TC, Hollins AJ, McMurrick PJ, Abud HE. Modeling colorectal cancer: A bio-resource of 50 patient-derived organoid lines. J Gastroenterol Hepatol 2022; 37:898-907. [PMID: 35244298 PMCID: PMC10138743 DOI: 10.1111/jgh.15818] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/07/2022] [Accepted: 02/16/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIM Colorectal cancer (CRC) is the second leading cause of cancer death worldwide. To improve outcomes for these patients, we need to develop new treatment strategies. Personalized cancer medicine, where patients are treated based on the characteristics of their own tumor, has gained significant interest for its promise to improve outcomes and reduce unnecessary side effects. The purpose of this study was to examine the potential utility of patient-derived colorectal cancer organoids (PDCOs) in a personalized cancer medicine setting. METHODS Patient-derived colorectal cancer organoids were derived from tissue obtained from treatment-naïve patients undergoing surgical resection for the treatment of CRC. We examined the recapitulation of key histopathological, molecular, and phenotypic characteristics of the primary tumor. RESULTS We created a bio-resource of PDCOs from primary and metastatic CRCs. Key histopathological features were retained in PDCOs when compared with the primary tumor. Additionally, a cohort of 12 PDCOs, and their corresponding primary tumors and normal sample, were characterized through whole exome sequencing and somatic variant calling. These PDCOs exhibited a high level of concordance in key driver mutations when compared with the primary tumor. CONCLUSIONS Patient-derived colorectal cancer organoids recapitulate characteristics of the tissue from which they are derived and are a powerful tool for cancer research. Further research will determine their utility for predicting patient outcomes in a personalized cancer medicine setting.
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Affiliation(s)
- Rebekah M Engel
- Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoriaAustralia
- Development and Stem Cells ProgramMonash Biomedicine Discovery Institute, Monash UniversityMelbourneVictoriaAustralia
- Department of Surgery, Cabrini HospitalCabrini Monash UniversityMelbourneVictoriaAustralia
| | - Thierry Jardé
- Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoriaAustralia
- Development and Stem Cells ProgramMonash Biomedicine Discovery Institute, Monash UniversityMelbourneVictoriaAustralia
- Centre for Cancer ResearchHudson Institute of Medical ResearchMelbourneVictoriaAustralia
| | - Karen Oliva
- Department of Surgery, Cabrini HospitalCabrini Monash UniversityMelbourneVictoriaAustralia
| | - Genevieve Kerr
- Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoriaAustralia
- Development and Stem Cells ProgramMonash Biomedicine Discovery Institute, Monash UniversityMelbourneVictoriaAustralia
| | - Wing Hei Chan
- Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoriaAustralia
- Development and Stem Cells ProgramMonash Biomedicine Discovery Institute, Monash UniversityMelbourneVictoriaAustralia
| | - Sara Hlavca
- Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoriaAustralia
- Development and Stem Cells ProgramMonash Biomedicine Discovery Institute, Monash UniversityMelbourneVictoriaAustralia
| | - David Nickless
- Anatomical Pathology DepartmentCabrini Pathology, Cabrini HospitalMelbourneVictoriaAustralia
| | - Stuart K Archer
- Monash Bioinformatics PlatformMonash UniversityMelbourneVictoriaAustralia
| | - Raymond Yap
- Department of Surgery, Cabrini HospitalCabrini Monash UniversityMelbourneVictoriaAustralia
| | - Pravin Ranchod
- Department of Surgery, Cabrini HospitalCabrini Monash UniversityMelbourneVictoriaAustralia
| | - Stephen Bell
- Department of Surgery, Cabrini HospitalCabrini Monash UniversityMelbourneVictoriaAustralia
| | - Ann Niap
- Anatomical Pathology DepartmentCabrini Pathology, Cabrini HospitalMelbourneVictoriaAustralia
| | - Christine Koulis
- Department of Surgery, Cabrini HospitalCabrini Monash UniversityMelbourneVictoriaAustralia
| | - Ashley Chong
- Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoriaAustralia
- Development and Stem Cells ProgramMonash Biomedicine Discovery Institute, Monash UniversityMelbourneVictoriaAustralia
| | - Simon Wilkins
- Department of Surgery, Cabrini HospitalCabrini Monash UniversityMelbourneVictoriaAustralia
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Trevor C Dale
- European Cancer Stem Cell Research Institute (ECSCRI)CardiffUK
- School of BiosciencesCardiff UniversityCardiffUK
| | - Andrew J Hollins
- European Cancer Stem Cell Research Institute (ECSCRI)CardiffUK
- School of BiosciencesCardiff UniversityCardiffUK
| | - Paul J McMurrick
- Department of Surgery, Cabrini HospitalCabrini Monash UniversityMelbourneVictoriaAustralia
| | - Helen E Abud
- Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoriaAustralia
- Development and Stem Cells ProgramMonash Biomedicine Discovery Institute, Monash UniversityMelbourneVictoriaAustralia
- Department of Surgery, Cabrini HospitalCabrini Monash UniversityMelbourneVictoriaAustralia
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Engel RM, Oliva K, Koulis C, Yap R, McMurrick PJ. Predictive factors of complete pathological response in patients with locally advanced rectal cancer. Int J Colorectal Dis 2020; 35:1759-1767. [PMID: 32474708 DOI: 10.1007/s00384-020-03633-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/14/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Patients with locally advanced rectal cancer who achieve pathologic complete response (pCR) following neoadjuvant therapy have better long-term outcomes and could be spared from the perioperative and long-term morbidity of rectal resection. The aim of this study was to identify factors that predict the ability to achieve pCR at completion of conventional neoadjuvant therapy, therefore determining their suitability for non-surgical management. METHODS A retrospective analysis was performed on data obtained from a prospectively maintained colorectal neoplasia database. Patients treated for biopsy-proven primary rectal adenocarcinoma between January 1, 2010, and February 28, 2018, who received neoadjuvant radiotherapy or chemoradiotherapy and had undergone surgical resection, were included in this study. Five-year oncologic outcome data was also obtained for 144 patients. Clinicopathological tumour characteristics and treatment regimens were analysed for correlation to clinical outcome. RESULTS Three hundred fifty-four patients met inclusion criteria for this study. We identified significant differences between patients achieving a pCR and those that did not for tumour type (adenocarcinoma vs. mucinous/signet ring; p = 0.008), pre-treatment serum CEA level (</≥ 2.5 μg/L; p = 0.003), neoadjuvant therapy type (short-course radiotherapy and long-course chemoradiotherapy; p = 0.008) and preoperative lymph node status (node-negative versus node-positive disease; p = 0.031). Additionally, this is the first report to our knowledge to identify a significant correlation with pCR and the degree of tumour fixity (mobile vs. fixed/tethered; p = 0.038). CONCLUSIONS This retrospective analysis identified factors that significantly impact a patients' ability to achieve a pCR, which may prove useful for prospectively selecting patients suitable for non-surgical management of disease.
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Affiliation(s)
- Rebekah M Engel
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern, VIC, 3144, Australia.
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, 3800, Australia.
- Stem Cells and Development Program, Monash Biomedicine Discovery Institute, Monash University, Wellington Road, Clayton, VIC, 3800, Australia.
| | - Karen Oliva
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern, VIC, 3144, Australia
| | - Christine Koulis
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern, VIC, 3144, Australia
| | - Raymond Yap
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern, VIC, 3144, Australia
| | - Paul J McMurrick
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern, VIC, 3144, Australia
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Koulis C, Yap R, Engel R, Jardé T, Wilkins S, Solon G, Shapiro JD, Abud H, McMurrick P. Personalized Medicine-Current and Emerging Predictive and Prognostic Biomarkers in Colorectal Cancer. Cancers (Basel) 2020; 12:cancers12040812. [PMID: 32231042 PMCID: PMC7225926 DOI: 10.3390/cancers12040812] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/24/2020] [Accepted: 03/24/2020] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer diagnosed worldwide and is heterogeneous both morphologically and molecularly. In an era of personalized medicine, the greatest challenge is to predict individual response to therapy and distinguish patients likely to be cured with surgical resection of tumors and systemic therapy from those resistant or non-responsive to treatment. Patients would avoid futile treatments, including clinical trial regimes and ultimately this would prevent under- and over-treatment and reduce unnecessary adverse side effects. In this review, the potential of specific biomarkers will be explored to address two key questions—1) Can the prognosis of patients that will fare well or poorly be determined beyond currently recognized prognostic indicators? and 2) Can an individual patient’s response to therapy be predicted and those who will most likely benefit from treatment/s be identified? Identifying and validating key prognostic and predictive biomarkers and an understanding of the underlying mechanisms of drug resistance and toxicity in CRC are important steps in order to personalize treatment. This review addresses recent data on biological prognostic and predictive biomarkers in CRC. In addition, patient cohorts most likely to benefit from currently available systemic treatments and/or targeted therapies are discussed in this review.
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Affiliation(s)
- Christine Koulis
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern 3144, VIC, Australia; (R.Y.); (R.E.); (S.W.); (G.S.); (P.M.)
- Correspondence: ; Tel.: +61-03-9508-3547
| | - Raymond Yap
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern 3144, VIC, Australia; (R.Y.); (R.E.); (S.W.); (G.S.); (P.M.)
| | - Rebekah Engel
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern 3144, VIC, Australia; (R.Y.); (R.E.); (S.W.); (G.S.); (P.M.)
- Department of Anatomy and Developmental Biology, Monash University, Clayton 3800, VIC, Australia; (T.J.); (H.A.)
- Monash Biomedicine Discovery Institute, Stem Cells and Development Program, Monash University, Clayton 3800, VIC, Australia
| | - Thierry Jardé
- Department of Anatomy and Developmental Biology, Monash University, Clayton 3800, VIC, Australia; (T.J.); (H.A.)
- Monash Biomedicine Discovery Institute, Stem Cells and Development Program, Monash University, Clayton 3800, VIC, Australia
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton 3168, VIC, Australia
| | - Simon Wilkins
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern 3144, VIC, Australia; (R.Y.); (R.E.); (S.W.); (G.S.); (P.M.)
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne 3000, VIC, Australia
| | - Gemma Solon
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern 3144, VIC, Australia; (R.Y.); (R.E.); (S.W.); (G.S.); (P.M.)
| | - Jeremy D. Shapiro
- Cabrini Haematology and Oncology Centre, Cabrini Health, Malvern 3144, VIC, Australia;
| | - Helen Abud
- Department of Anatomy and Developmental Biology, Monash University, Clayton 3800, VIC, Australia; (T.J.); (H.A.)
- Monash Biomedicine Discovery Institute, Stem Cells and Development Program, Monash University, Clayton 3800, VIC, Australia
| | - Paul McMurrick
- Cabrini Monash University Department of Surgery, Cabrini Health, Malvern 3144, VIC, Australia; (R.Y.); (R.E.); (S.W.); (G.S.); (P.M.)
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Chow BSM, Koulis C, Krishnaswamy P, Steckelings UM, Unger T, Cooper ME, Jandeleit-Dahm KA, Allen TJ. The angiotensin II type 2 receptor agonist Compound 21 is protective in experimental diabetes-associated atherosclerosis. Diabetologia 2016; 59:1778-90. [PMID: 27168137 DOI: 10.1007/s00125-016-3977-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/20/2016] [Indexed: 12/20/2022]
Abstract
AIMS/HYPOTHESIS Angiotensin II is well-recognised to be a key mediator in driving the pathological events of diabetes-associated atherosclerosis via signalling through its angiotensin II type 1 receptor (AT1R) subtype. However, its actions via the angiotensin II type 2 receptor (AT2R) subtype are still poorly understood. This study is the first to investigate the role of the novel selective AT2R agonist, Compound 21 (C21) in an experimental model of diabetes-associated atherosclerosis (DAA). METHODS Streptozotocin-induced diabetic Apoe-knockout mice were treated with vehicle (0.1 mol/l citrate buffer), C21 (1 mg/kg per day), candesartan cilexetil (4 mg/kg per day) or C21 + candesartan cilexetil over a 20 week period. In vitro models of DAA using human aortic endothelial cells and monocyte cultures treated with C21 were also performed. At the end of the experiments, assessment of plaque content and markers of oxidative stress, inflammation and fibrosis were conducted. RESULTS C21 treatment significantly attenuated aortic plaque deposition in a mouse model of DAA in vivo, in association with a decreased infiltration of macrophages and mediators of inflammation, oxidative stress and fibrosis. On the other hand, combination therapy with C21 and candesartan (AT1R antagonist) appeared to have a limited additive effect in attenuating the pathology of DAA when compared with either treatment alone. Similarly, C21 was found to confer profound anti-atherosclerotic actions at the in vitro level, particularly in the setting of hyperglycaemia. Strikingly, these atheroprotective actions of C21 were completely blocked by the AT2R antagonist PD123319. CONCLUSIONS/INTERPRETATION Taken together, these findings provide novel mechanistic and potential therapeutic insights into C21 as a monotherapy agent against DAA.
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Affiliation(s)
- Bryna S M Chow
- JDRF Danielle Alberti Memorial Centre for Diabetic Complications, Diabetic Complications Division, Baker IDI Heart and Diabetes Research Institute, 75 Commercial Road, P. O. Box 6492, Melbourne, VIC, 3004, Australia
| | - Christine Koulis
- JDRF Danielle Alberti Memorial Centre for Diabetic Complications, Diabetic Complications Division, Baker IDI Heart and Diabetes Research Institute, 75 Commercial Road, P. O. Box 6492, Melbourne, VIC, 3004, Australia
| | - Pooja Krishnaswamy
- JDRF Danielle Alberti Memorial Centre for Diabetic Complications, Diabetic Complications Division, Baker IDI Heart and Diabetes Research Institute, 75 Commercial Road, P. O. Box 6492, Melbourne, VIC, 3004, Australia
| | - Ulrike M Steckelings
- IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense, Denmark
| | - Thomas Unger
- School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
| | - Mark E Cooper
- JDRF Danielle Alberti Memorial Centre for Diabetic Complications, Diabetic Complications Division, Baker IDI Heart and Diabetes Research Institute, 75 Commercial Road, P. O. Box 6492, Melbourne, VIC, 3004, Australia
| | - Karin A Jandeleit-Dahm
- JDRF Danielle Alberti Memorial Centre for Diabetic Complications, Diabetic Complications Division, Baker IDI Heart and Diabetes Research Institute, 75 Commercial Road, P. O. Box 6492, Melbourne, VIC, 3004, Australia
| | - Terri J Allen
- JDRF Danielle Alberti Memorial Centre for Diabetic Complications, Diabetic Complications Division, Baker IDI Heart and Diabetes Research Institute, 75 Commercial Road, P. O. Box 6492, Melbourne, VIC, 3004, Australia.
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Koulis C, Watson A, Gray S, Jandeleit-Dahm K. Linking RAGE and Nox in diabetic micro- and macrovascular complications. Diabetes & Metabolism 2015; 41:272-281. [DOI: 10.1016/j.diabet.2015.01.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 01/24/2015] [Accepted: 01/30/2015] [Indexed: 12/31/2022]
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Koulis C, Chow BSM, McKelvey M, Steckelings UM, Unger T, Thallas-Bonke V, Thomas MC, Cooper ME, Jandeleit-Dahm KA, Allen TJ. AT2R agonist, compound 21, is reno-protective against type 1 diabetic nephropathy. Hypertension 2015; 65:1073-81. [PMID: 25776077 DOI: 10.1161/hypertensionaha.115.05204] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 02/18/2015] [Indexed: 12/12/2022]
Abstract
The hemodynamic and nonhemodynamic effects of angiotensin II on diabetic complications are considered to be primarily mediated by the angiotensin II type 1 receptor subtype. However, its biological and functional effect mediated through the angiotensin II type 2 receptor subtype is still unclear. Activation of the angiotensin II type 2 receptors has been postulated to oppose angiotensin II type 1 receptor-mediated actions and thus attenuate fibrosis. This study aimed to elucidate the reno-protective role of the novel selective angiotensin II type 2 receptor agonist, Compound 21, in an experimental model of type 1 diabetic nephropathy. Compound 21 treatment significantly attenuated diabetes mellitus-induced elevated levels of cystatin C, albuminuria, mesangial expansion, and glomerulosclerosis in diabetic mice. Moreover, Compound 21 markedly inhibited the expression of various proteins implicated in oxidative stress, inflammation, and fibrosis, in association with decreased extracellular matrix production. These findings demonstrate that monotherapy of Compound 21 is protective against the progression of experimental diabetic nephropathy by inhibiting renal oxidative stress, inflammation, and fibrosis.
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Affiliation(s)
- Christine Koulis
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.)
| | - Bryna S M Chow
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.)
| | - Maria McKelvey
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.)
| | - Ulrike M Steckelings
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.)
| | - Thomas Unger
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.)
| | - Vicki Thallas-Bonke
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.)
| | - Merlin C Thomas
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.)
| | - Mark E Cooper
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.)
| | - Karin A Jandeleit-Dahm
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.)
| | - Terri J Allen
- From the Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (C.K., B.S.M.C., M.M., V.T.-B., M.C.T., M.E.C., K.A.J.-D., T.J.A.); the Department of Medicine, Monash University, Monash, Australia (M.C.T., M.E.C., K.A.J.-D., T.J.A.); IMM-Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense. Denmark (U.M.S.); and CARIM-School of Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands (T.U.).
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Di Marco E, Gray SP, Chew P, Koulis C, Ziegler A, Szyndralewiez C, Touyz RM, Schmidt HHHW, Cooper ME, Slattery R, Jandeleit-Dahm KA. Pharmacological inhibition of NOX reduces atherosclerotic lesions, vascular ROS and immune-inflammatory responses in diabetic Apoe(-/-) mice. Diabetologia 2014; 57:633-42. [PMID: 24292634 DOI: 10.1007/s00125-013-3118-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 11/06/2013] [Indexed: 01/09/2023]
Abstract
AIMS/HYPOTHESIS Enhanced vascular inflammation, immune cell infiltration and elevated production of reactive oxygen species (ROS) contribute significantly to pro-atherogenic responses in diabetes. We assessed the immunomodulatory role of NADPH oxidase (NOX)-derived ROS in diabetes-accelerated atherosclerosis. METHODS Diabetes was induced in male Apoe(-/-) mice with five daily doses of streptozotocin (55 mg kg(-1) day(-1)). Atherosclerotic plaque size, markers of ROS and immune cell accumulation were assessed in addition to flow cytometric analyses of cells isolated from the adjacent mediastinal lymph nodes (meLNs). The role of NOX-derived ROS was investigated using the NOX inhibitor, GKT137831 (60 mg/kg per day; gavage) administered to diabetic and non-diabetic Apoe(-/-) mice for 10 weeks. RESULTS Diabetes increased atherosclerotic plaque development in the aortic sinus and this correlated with increased lesional accumulation of T cells and CD11c(+) cells and altered T cell activation in the adjacent meLNs. Diabetic Apoe(-/-) mice demonstrated an elevation in vascular ROS production and expression of the proinflammatory markers monocyte chemoattractant protein 1, vascular adhesion molecule 1 and IFNγ. Blockade of NOX-derived ROS using GKT137831 prevented the diabetes-mediated increase in atherosclerotic plaque area and associated vascular T cell infiltration and also significantly reduced vascular ROS as well as markers of inflammation and plaque necrotic core area. CONCLUSIONS/INTERPRETATION Diabetes promotes pro-inflammatory immune responses in the aortic sinus and its associated lymphoid tissue. These changes are associated with increased ROS production by NOX. Blockade of NOX-derived ROS using the NOX inhibitor GKT137831 is associated with attenuation of these changes in the immune response and reduces the diabetes-accelerated development of atherosclerotic plaques in Apoe(-/-) mice.
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Affiliation(s)
- E Di Marco
- Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, PO Box 6429, St Kilda Rd, Melbourne, VIC, 8008, Australia
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Koulis C, Chen YC, Hausding C, Ahrens I, Kyaw TS, Tay C, Allen T, Jandeleit-Dahm K, Sweet MJ, Akira S, Bobik A, Peter K, Agrotis A. Protective role for Toll-like receptor-9 in the development of atherosclerosis in apolipoprotein E-deficient mice. Arterioscler Thromb Vasc Biol 2014; 34:516-25. [PMID: 24436372 DOI: 10.1161/atvbaha.113.302407] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Atherosclerosis is driven by inflammatory reactions that are shared with the innate immune system. Toll-like receptor-9 (TLR9) is an intracellular pattern recognition receptor of the innate immune system that is currently under clinical investigation as a therapeutic target in inflammatory diseases. Here, we investigated whether TLR9 has a role in the development of atherosclerosis in apolipoprotein E-deficient (ApoE(-/-)) mice. APPROACH AND RESULTS Newly generated double-knockout ApoE(-/-):TLR9(-/-) mice and control ApoE(-/-) mice were fed a high-fat diet from 8 weeks and effects on lesion size, cellular composition, inflammatory status, and plasma lipids were assessed after 8, 12, 15, and 20 weeks. All 4 time points demonstrated exacerbated atherosclerotic lesion severity in ApoE(-/-):TLR9(-/-) mice, with a corresponding increase in lipid deposition and accumulation of macrophages, dendritic cells, and CD4(+) T cells. Although ApoE(-/-):TLR9(-/-) mice exhibited an increase in plasma very low-density lipoprotein/low-density-lipoprotein cholesterol, the very low-density lipoprotein/low-density lipoprotein:high-density lipoprotein ratio was unaltered because of a parallel increase in plasma high-density lipoprotein cholesterol. As a potential mechanism accounting for plaque progression in ApoE(-/-):TLR9(-/-) mice, CD4(+) T-cell accumulation was further investigated and depletion of these cells in ApoE(-/-):TLR9(-/-) mice significantly reduced lesion severity. As a final translational approach, administration of a TLR9 agonist (type B CpG oligodeoxynucleotide 1668) to ApoE(-/-) mice resulted in a reduction of lesion severity. CONCLUSIONS Genetic deletion of the innate immune receptor TLR9 exacerbated atherosclerosis in ApoE(-/-) mice fed a high-fat diet. CD4(+) T cells were identified as potential mediators of this effect. A type B CpG oligodeoxynucleotide TLR9 agonist reduced lesion severity, thus identifying a novel therapeutic approach in atherosclerosis.
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Affiliation(s)
- Christine Koulis
- From the Department of Cell Biology & Atherosclerosis (C.K., Y.C.C., C.H., I.A., T.S.K., C.T., A.B., K.P., A.A.) and Department of Diabetic Complications (C.K., T.A., K.J.-D.), Heart and Diabetes Institute, Melbourne, Victoria, Australia; Department of Cardiology and Angiology I, Heart Centre Freiburg University, Freiburg, Germany (I.A.); Molecular Cell Biology Division, Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia (M.J.S.); Laboratory of Host Defense, WPI Immunology Frontier Research Centre, Osaka University, Osaka, Japan (S.A.); and Department of Immunology, Monash University, Melbourne, Victoria, Australia (A.B., K.P., A.A.)
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9
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Gray SP, Di Marco E, Okabe J, Szyndralewiez C, Heitz F, Montezano AC, de Haan JB, Koulis C, El-Osta A, Andrews KL, Chin-Dusting JPF, Touyz RM, Wingler K, Cooper ME, Schmidt HHHW, Jandeleit-Dahm KA. NADPH Oxidase 1 Plays a Key Role in Diabetes Mellitus–Accelerated Atherosclerosis. Circulation 2013; 127:1888-902. [PMID: 23564668 DOI: 10.1161/circulationaha.112.132159] [Citation(s) in RCA: 285] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Stephen P. Gray
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Elyse Di Marco
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Jun Okabe
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Cedric Szyndralewiez
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Freddy Heitz
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Augusto C. Montezano
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Judy B. de Haan
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Christine Koulis
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Assam El-Osta
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Karen L. Andrews
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Jaye P. F. Chin-Dusting
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Rhian M. Touyz
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Kirstin Wingler
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Mark E. Cooper
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Harald H. H. W. Schmidt
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
| | - Karin A Jandeleit-Dahm
- From the Diabetic Complications Division, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (S.P.G., E.D.M., J.B.d.H., C.K., M.E.C., K.A.J.-D.); the Department of Medicine, Monash University, Monash, Australia (E.D.M., M.E.C., K.A.J.-D.); Epigenetics in Human Health and Disease, Baker IDI Heart & Diabetes Institute, Melbourne, Australia (J.O., A.E.-O.); GenKyoTex SA, Geneva, Switzerland (C.S., F.H.); Ottawa Hospital Research Institute, Ottawa, Canada (A.C.M., R.M.T.); Institute of
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10
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Watson AMD, Olukman M, Koulis C, Tu Y, Samijono D, Yuen D, Lee C, Behm DJ, Cooper ME, Jandeleit-Dahm KAM, Calkin AC, Allen TJ. Urotensin II receptor antagonism confers vasoprotective effects in diabetes associated atherosclerosis: studies in humans and in a mouse model of diabetes. Diabetologia 2013; 56:1155-65. [PMID: 23344731 DOI: 10.1007/s00125-013-2837-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 01/07/2013] [Indexed: 02/07/2023]
Abstract
AIMS/HYPOTHESIS The small, highly conserved vasoactive peptide urotensin II (UII) is upregulated in atherosclerosis. However, its effects in diabetes-associated atherosclerosis have not been assessed. METHODS Endothelial cells were grown in normal- and high-glucose (5 and 25 mmol/l) media with and without UII (10⁻⁸ mol/l) and/or the UII receptor antagonist, SB-657510 (10⁻⁸ mol/l). Apoe knockout (KO) mice with or without streptozotocin-induced diabetes were treated with or without SB-657510 (30 mg kg⁻¹ day⁻¹; n = 20 per group) and followed for 20 weeks. Carotid endarterectomy specimens from diabetic and non-diabetic humans were also evaluated. RESULTS In high (but not normal) glucose medium, UII significantly increased CCL2 (encodes macrophage chemoattractant protein 1 [MCP-1]) gene expression (human aortic endothelial cells) and increased monocyte adhesion (HUVECs). UII receptor antagonism in diabetic Apoe KO mice significantly attenuated diabetes-associated atherosclerosis and aortic staining for MCP-1, F4/80 (macrophage marker), cyclooxygenase-2, nitrotyrosine and UII. UII staining was significantly increased in carotid endarterectomies from diabetic compared with non-diabetic individuals, as was staining for MCP-1. CONCLUSIONS/INTERPRETATION This is the first report to demonstrate that UII is increased in diabetes-associated atherosclerosis in humans and rodents. Diabetes-associated plaque development was attenuated by UII receptor antagonism in the experimental setting. Thus UII may represent a novel therapeutic target in the treatment of diabetes-associated atherosclerosis.
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MESH Headings
- Animals
- Aorta/drug effects
- Aorta/immunology
- Aorta/metabolism
- Aorta/pathology
- Atherosclerosis/complications
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- Atherosclerosis/prevention & control
- Cell Adhesion/drug effects
- Cells, Cultured
- Crosses, Genetic
- Diabetes Mellitus, Type 1/complications
- Diabetic Angiopathies/immunology
- Diabetic Angiopathies/metabolism
- Diabetic Angiopathies/pathology
- Diabetic Angiopathies/prevention & control
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/immunology
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Human Umbilical Vein Endothelial Cells/drug effects
- Human Umbilical Vein Endothelial Cells/immunology
- Human Umbilical Vein Endothelial Cells/metabolism
- Human Umbilical Vein Endothelial Cells/pathology
- Humans
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Monocytes/drug effects
- Monocytes/immunology
- Pilot Projects
- Protective Agents/pharmacology
- Protective Agents/therapeutic use
- Receptors, G-Protein-Coupled/antagonists & inhibitors
- Receptors, G-Protein-Coupled/metabolism
- Sulfonamides/pharmacology
- Sulfonamides/therapeutic use
- Urotensins/antagonists & inhibitors
- Urotensins/biosynthesis
- Urotensins/metabolism
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Affiliation(s)
- A M D Watson
- Baker IDI Heart and Diabetes Research Institute, PO Box 6492 St Kilda Road Central, Melbourne, VIC 8008, Australia.
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Abstract
Diabetic subjects are at a greater risk of developing major vascular complications due to abnormalities pertinent to the diabetic milieu. Current treatment options achieve significant improvements in glucose levels and blood pressure control, but do not necessarily prevent or retard diabetes-mediated macrovascular disease. In this review, we highlight several pathways that are increasingly being appreciated as playing a significant role in diabetic vascular injury. We focus particularly on the advanced glycation end product/receptor for advanced glycation end product (AGE/RAGE) axis and its interplay with the nuclear protein HMGB1. We discuss evidence implicating a significant role for the renin-angiotensin system, urotensin II and PPAR, as well as the importance of proinflammatory mediators and oxidative stress in cardiovascular complications. The specific targeting of these pathways may lead to novel therapies to reduce the burden of diabetic vascular complications.
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Affiliation(s)
- Christine Koulis
- Diabetic Complications Group, Baker IDI Heart and Diabetes Institute, Melbourne, VIC, Australia
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12
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Kanellakis P, Agrotis A, Kyaw TS, Koulis C, Ahrens I, Mori S, Takahashi HK, Liu K, Peter K, Nishibori M, Bobik A. High-Mobility Group Box Protein 1 Neutralization Reduces Development of Diet-Induced Atherosclerosis in Apolipoprotein E–Deficient Mice. Arterioscler Thromb Vasc Biol 2011; 31:313-9. [DOI: 10.1161/atvbaha.110.218669] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Objective—
High-mobility group box protein 1 (HMGB1) is a DNA-binding protein and cytokine highly expressed in atherosclerotic lesions, but its pathophysiological role in atherosclerosis is unknown. We investigated its role in the development of atherosclerosis in ApoE−/− mice.
Methods and Results—
Apolipoprotein E–deficient (ApoE−/−) mice fed a high-fat diet were administered a monoclonal anti-HMGB1 neutralizing antibody, and the effects on lesion size, immune cell accumulation, and proinflammatory mediators were assessed using Oil Red O, immunohistochemistry, and real-time polymerase chain reaction. As with human atherosclerotic lesions, lesions in ApoE−/− mice expressed HMGB1. Treatment with the neutralizing antibody attenuated atherosclerosis by 55%. Macrophage accumulation was reduced by 43%, and vascular cell adhesion molecule-1 and monocyte chemoattractant protein-1 expression was attenuated by 48% and 72%, respectively. CD11c+ dendritic cells were reduced by 65%, and the mature (CD83+) population was reduced by 60%. Treatment also reduced CD4+ cells by nearly 50%. mRNAs in lesions encoding tumor necrosis factor-α and interleukin-1β tended to be reduced. Mechanistically, HMGB1 stimulated macrophage migration in vitro and in vivo; in vivo, it markedly augmented the accumulation of F4/80+Gr-1(Ly-6C)+ macrophages and also increased F4/80+CD11b+ macrophage numbers.
Conclusion—
HMGB1 exerts proatherogenic effects augmenting lesion development by stimulating macrophage migration, modulating proinflammatory mediators, and encouraging the accumulation of immune and smooth muscle cells.
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Affiliation(s)
- Peter Kanellakis
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Alex Agrotis
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Tin Soe Kyaw
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Christine Koulis
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Ingo Ahrens
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Shuji Mori
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Hideo K. Takahashi
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Keyue Liu
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Karlheinz Peter
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Masahiro Nishibori
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
| | - Alex Bobik
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (P.K., A.A., T.S.K., C.K., I.A., K.P., A.B.); Department of Pharmacology and Pathology, Okayama University Graduate School of Medicine, Okayama University, Okayama, Japan (S.M., H.K.T., K.L., M.N.)
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