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Ma Z, Lee AYW, Kot CH, Yung PSH, Chen SC, Lui PPY. Upregulation of FABP4 induced inflammation in the pathogenesis of chronic tendinopathy. J Orthop Translat 2024; 47:105-115. [PMID: 39007036 PMCID: PMC11245957 DOI: 10.1016/j.jot.2024.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 04/06/2024] [Accepted: 06/03/2024] [Indexed: 07/16/2024] Open
Abstract
Objectives Excessive inflammation contributes to the pathogenesis of tendinopathy. Fatty acid binding protein 4 (FABP4) is a pro-inflammatory adipokine mediating various metabolic and inflammatory diseases. This study aimed to examine the expression of FABP4 and its association with the expressions of inflammatory cytokines in tendinopathy. The effects of a single injection of FABP4 on tendon pathology and inflammation were examined. The effect of FABP4 on the expressions of inflammatory cytokines and the effect of IL-1β on the expression of FABP4 in tendon-derived stem/progenitor cells (TDSCs) were also investigated. Methods 1) Clinical patellar tendinopathy samples, healthy hamstring tendon samples, and healthy patellar tendon samples, 2) rotator cuff tendinopathy samples and healthy hamstring tendon samples; and 3) Achilles tendons of mice after saline or collagenase injection (CI) were stained for FABP4, IL-1β, IL-6, TNF-α and IL-10 by immunohistochemistry (IHC). For the rotator cuff tendinopathy samples, co-localization of FABP4 with IL-1β and TNF-α was done by immunofluorescent staining (IF). Mouse Achilles tendons injected with FABP4 or saline were collected for histology and IHC as well as microCT imaging post-injection. TDSCs were isolated from human and mouse tendons. The mRNA expressions of inflammatory cytokines in human and mouse TDSCs after the addition of FABP4 was quantified by qRT-PCR. The expression of FABP4 in TDSCs isolated from rotator cuff tendinopathy samples and healthy hamstring tendon samples was examined by IF. Mouse Achilles TDSCs were treated with IL-1β. The mRNA and protein expressions of FABP4 were examined by qRT-PCR and IF, respectively. Results There was significant upregulation of FABP4 in the patellar tendinopathy samples and rotator cuff tendinopathy samples compared to their corresponding controls. FABP4 was mainly expressed in the pathological areas including blood vessels, hypercellular and calcified regions. The expressions of IL-1β and TNF-α increased in human rotator cuff tendinopathy samples and co-localized with the expression of FABP4. Collagenase induced tendinopathic-like histopathological changes and ectopic calcification in the mouse Achilles tendinopathy model. The expressions of inflammatory cytokines (IL-1β, IL-6, TNF-α, IL-10) and FABP4 increased in hypercellular region, round cells chondrocyte-like cells and calcified regions in the mouse Achilles tendons post-collagenase injection. A single injection of FABP4 in mouse Achilles tendons induced histopathological changes resembling tendinopathy, with increased cell rounding, loss of collagen fiber alignment, and additionally presence of chondrocyte-like cells and calcification post-injection. The expressions of IL1-β, IL-6, TNF-α and IL-10 increased in mouse Achilles tendons post-FABP4 injection. FABP4 increased the expressions of IL10, IL6, and TNFa in human TDSCs as well as the expressions of Il1b, Il6, and Il10 in mouse TDSCs. Human tendinopathy TDSCs expressed higher level of FABP4 compared to healthy hamstring TDSCs. Besides, IL-1β increased the expression of FABP4 in mouse TDSCs. Conclusion In conclusion, an upregulation of FABP4 is involved in excessive inflammation and pathogenesis of tendinopathy. TDSCs is a potential source of FABP4 during tendon inflammation. Translation potential of this article FABP4 can be a potential treatment target of tendinopathy.
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Affiliation(s)
- Zebin Ma
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Angel Yuk Wa Lee
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Cheuk Hin Kot
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Patrick Shu Hang Yung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
- Center for Neuromusculoskeletal Restorative Medicine Ltd., Hong Kong Science Park, Shatin, New Territories, Hong Kong SAR, China
| | - Ssu-Chi Chen
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Pauline Po Yee Lui
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
- Center for Neuromusculoskeletal Restorative Medicine Ltd., Hong Kong Science Park, Shatin, New Territories, Hong Kong SAR, China
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Yan D, Hao Q, Chen Y, Li Z, Zhang H, Yuan K, Li R, Li R, Zhao Y, Wang K, Peng H, Zhang D, Chen X, Zhao Y. mTOR-FABP4 signal is activated in brain arteriovenous malformations in humans. J Mol Med (Berl) 2022; 100:1287-1297. [PMID: 35876909 DOI: 10.1007/s00109-022-02237-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 07/05/2022] [Accepted: 07/13/2022] [Indexed: 10/16/2022]
Abstract
Arteriovenous malformations (AVMs) are the most common types of cerebral vascular malformations, which are dynamic lesions with de novo growth potentials. The dysfunction of endothelial cells has been postulated to play a role in the pathogenesis of brain AVMs. mTOR-FABP4 signal enhances the angiogenic responses of endothelial cells and is not activated in the normal cerebral vasculature. Herein, we investigated the hypothesis that the mTOR-FABP4 signal may be activated in brain AVMs. The abundance of molecules in mTOR-FABP4 signal expression was detected by immunohistochemistry and Western blotting; special expressing cells were further characterized by double immunofluorescence using antibodies against various cell-specific markers. Next, several functional assays were performed to analyze the influence of the mTOR-FABP4 signal on proliferation, apoptosis, migration, and vascular tube formation of endothelial cells in human umbilical vein endothelial cells (HUVECs) using rapamycin and L-leucine. The expression of mTOR, p-mTOR, and FABP4 was increased in endothelial cells of human brain AVMs. Endothelial cell mTOR and p-mTOR expression were present in 70% and 55% of brain AVMs, respectively. Moreover, a population of FABP4-positive endothelial cells was detected in 80% of brain AVMs. The mTOR-FABP4 signal was activated and inhibited by L-leucine and rapamycin in HUVECs. The proliferation, apoptosis, migration, and vascular tube formation of endothelial cells could be inhibited by rapamycin. The mTOR-FABP4 signal was activated in human brain AVMs, and the mTOR-FABP4 signal was involved in proliferation, apoptosis, migration, and the vascular tube formation of endothelial cells. Taken together, whether rapamycin has therapeutic potential for treating human brain AVMs is worthy of further study. KEY MESSAGES : We confirmed that the mTOR- FABP4 pathway is activated in human brain arteriovenous malformations. We confirmed that mTOR signaling pathway affects endothelial cell function by regulating proliferation, migration, apoptosis, and tube formation of endothelial cell. Our study can provide theoretical support for mTOR pathway inhibitors in the treatment of human brain arteriovenous malformations.
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Affiliation(s)
- Debin Yan
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Qiang Hao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yu Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhipeng Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Haibin Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Kexin Yuan
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Runting Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ruinan Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yahui Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ke Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Hao Peng
- Hainan General Hospital, Hainan, China
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
| | - Xiaolin Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. .,Department of Neurosurgery, Peking University International Hospital, Peking University, Beijing, China. .,China National Clinical Research Center for Neurological Diseases, Beijing, China. .,Stroke Center, Beijing Institute for Brain Disorders, Beijing, China. .,Beijing Key Laboratory of Translation Medicine for Cerebrovascular Disease, Beijing, China. .,Beijing Translational Engineering Enter for 3D Printer in Clinical Neuroscience, Beijing, China.
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3
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Guo D, Lin C, Lu Y, Guan H, Qi W, Zhang H, Shao Y, Zeng C, Zhang R, Zhang H, Bai X, Cai D. FABP4 secreted by M1-polarized macrophages promotes synovitis and angiogenesis to exacerbate rheumatoid arthritis. Bone Res 2022; 10:45. [PMID: 35729106 PMCID: PMC9213409 DOI: 10.1038/s41413-022-00211-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 03/10/2022] [Accepted: 03/20/2022] [Indexed: 12/15/2022] Open
Abstract
Increasing evidence shows that adipokines play a vital role in the development of rheumatoid arthritis (RA). Fatty acid-binding protein 4 (FABP4), a novel adipokine that regulates inflammation and angiogenesis, has been extensively studied in a variety of organs and diseases. However, the effect of FABP4 on RA remains unclear. Here, we found that FABP4 expression was upregulated in synovial M1-polarized macrophages in RA. The increase in FABP4 promoted synovitis, angiogenesis, and cartilage degradation to exacerbate RA progression in vivo and in vitro, whereas BMS309403 (a FABP4 inhibitor) and anagliptin (dipeptidyl peptidase 4 inhibitor) inhibited FABP4 expression in serum and synovial M1-polarized macrophages in mice to alleviate RA progression. Further studies showed that constitutive activation of mammalian target of rapamycin complex 1 (mTORC1) by TSC1 deletion specifically in the myeloid lineage regulated FABP4 expression in macrophages to exacerbate RA progression in mice. In contrast, inhibition of mTORC1 by ras homolog enriched in brain (Rheb1) disruption specifically in the myeloid lineage reduced FABP4 expression in macrophages to attenuate RA development in mice. Our findings established an essential role of FABP4 that is secreted by M1-polarized macrophages in synovitis, angiogenesis, and cartilage degradation in RA. BMS309403 and anagliptin inhibited FABP4 expression in synovial M1-polarized macrophages to alleviate RA development. Hence, FABP4 may represent a potential target for RA therapy.
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Affiliation(s)
- Dong Guo
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Chuangxin Lin
- Department of Orthopedic Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, China
| | - Yuheng Lu
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Hong Guan
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Weizhong Qi
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Hongbo Zhang
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Yan Shao
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Chun Zeng
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Rongkai Zhang
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Haiyan Zhang
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China. .,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China. .,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China.
| | - Xiaochun Bai
- Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China. .,State Key Laboratory of Organ Failure Research, Department of Cell Biology, Southern Medical University School of Basic Medical Sciences, Guangzhou, China.
| | - Daozhang Cai
- Department of Joint Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China. .,Department of Orthopedics, Orthopedic Hospital of Guangdong Province, Academy of Orthopedics, Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China. .,The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China.
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4
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Bos S, Daniëls L, Michaux L, Vanden Bempt I, Vermeer S, Woei-A-Jin FSH, Schöffski P, Weynand B, Sciot R, Declercq S, Ceulemans LJ, Godinas L, Verleden GM, Van Raemdonck DE, Dupont LJ, Vos R. Case Report: An Unusual Course of Angiosarcoma After Lung Transplantation. Front Immunol 2022; 12:789851. [PMID: 35046948 PMCID: PMC8761760 DOI: 10.3389/fimmu.2021.789851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/07/2021] [Indexed: 11/25/2022] Open
Abstract
A 35-year-old woman underwent bilateral lung transplantation for primary ciliary dyskinesia and developed vascular tumors over a slow time course. Initial presentation of non-specific vascular tumors in the lungs and liver for up to 6 years after transplantation evolved toward bilateral ovarian angiosarcoma. Tumor analysis by haplotyping and human leukocyte antigen typing showed mixed donor chimerism, proving donor origin of the tumoral lesions. In retrospect, the donor became brain dead following neurosurgical complications for a previously biopsy-proven cerebral hemangioma, which is believed to have been a precursor lesion of the vascular malignancy in the recipient. Donor-transmitted tumors should always be suspected in solid organ transplant recipients in case of uncommon disease course or histology, and proper tissue-based diagnosis using sensitive techniques should be pursued.
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Affiliation(s)
- Saskia Bos
- Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium.,Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Liesbeth Daniëls
- Histocompatibility and Immunogenetics Laboratory (HILA), Red Cross-Flanders, Mechelen, Belgium
| | - Lucienne Michaux
- Center for Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | | | - Sascha Vermeer
- Center for Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Fj Sherida H Woei-A-Jin
- Department of General Medical Oncology, University Hospitals Leuven, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Patrick Schöffski
- Department of General Medical Oncology, University Hospitals Leuven, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Birgit Weynand
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium
| | - Raf Sciot
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium
| | - Sabine Declercq
- Department of Pathology, ZNA Middelheim Hospital, Antwerp, Belgium
| | - Laurens J Ceulemans
- Department of Thoracic Surgery, University Hospitals Leuven, Leuven, Belgium.,Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Laurent Godinas
- Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium.,Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Geert M Verleden
- Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium.,Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Dirk E Van Raemdonck
- Department of Thoracic Surgery, University Hospitals Leuven, Leuven, Belgium.,Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Lieven J Dupont
- Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium.,Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Robin Vos
- Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium.,Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
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5
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Sebaratnam DF, Rodríguez Bandera AL, Wong LCF, Wargon O. Infantile hemangioma. Part 2: Management. J Am Acad Dermatol 2021; 85:1395-1404. [PMID: 34419523 DOI: 10.1016/j.jaad.2021.08.020] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/25/2021] [Accepted: 08/03/2021] [Indexed: 12/18/2022]
Abstract
The majority of infantile hemangiomas (IH) can be managed conservatively, but for those requiring active treatment, management has been revolutionized in the last decade by the discovery of propranolol. Patients that may require active intervention should receive specialist review, ideally before 5 weeks of age to mitigate the risk of sequelae. Propranolol can commence for most infants in the outpatient setting and the most frequently employed dosing regimen is 1 mg/kg twice daily. In the future, β-blockers with a more-selective mechanism of action, such as atenolol, show some promise. In recalcitrant lesions, systemic corticosteroids or sirolimus may be considered. For small, superficial IHs, topical timolol maleate or pulsed dye laser may be considered. Where the IH involutes with cutaneous sequelae, a range of interventions have been reported, including surgery, laser, and embolization. IHs have a well-described clinical trajectory and are readily diagnosed and managed via telemedicine. Algorithms have been constructed to stratify those patients who can be managed remotely from those who warrant in-person review during the COVID-19 pandemic.
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Affiliation(s)
- Deshan F Sebaratnam
- The Children's Hospital at Westmead, Sydney, Australia; Liverpool Hospital, Sydney, Australia.
| | | | | | - Orli Wargon
- Sydney Children's Hospital, Sydney, Australia
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Hu X, Bai S, Li L, Tian P, Wang S, Zhang N, Shen B, Du J, Liu S. MiR-200c-3p increased HDMEC proliferation through the notch signaling pathway. Exp Biol Med (Maywood) 2021; 246:897-905. [PMID: 33472424 DOI: 10.1177/1535370220981859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Excessive proliferation of vascular endothelial cells can cause hemangioma. Although typically benign, hemangiomas can become life-threatening. The microRNA miR-200c-3p is abnormally expressed in some types of tumors, but its expression, biological role, and mechanism of action in infantile hemangioma remain to be fully elucidated. The expression levels of miR-200c-3p in hemangioma tissue were compared with those in adjacent healthy tissue by using bioinformatics analyses and TargetScan. Western blot, enzyme-linked immunosorbent assay, and Cell Counting Kit 8 analyses were used to determine the biological function and site of action of miR-200c-3p in human dermal microvascular endothelial cells (HDMECs). MiR-200c-3p was one of the top 10 differentially expressed genes between healthy tissue, and hemangiomas tissues, having markedly decreased expression in hemangioma tissue. Reduction of miR-200c-3p expression in HDMECs through the transfection of a miR-200c-3p inhibitor significantly increased HDMEC proliferation. The addition of the Notch signaling pathway inhibitor DAPT to HDMECs transfected with the miR-200c-3p inhibitor eliminated the inhibitor-induced enhancement of proliferation in HDMECs. These findings indicate that miR-200c-3p targets the Notch signaling pathway to promote the proliferation of vascular endothelial cells, suggesting that miR-200c-3p plays an important role in the pathogenesis of hemangioma.
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Affiliation(s)
- Xianyu Hu
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University Hefei, Anhui 230022, China
| | - Suwen Bai
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Lingyi Li
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Pengfei Tian
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Sun Wang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Ning Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Bing Shen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Juan Du
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China.,Longgang District People's Hospital of Shenzhen & The Third Affiliated Hospital (Provisional) of The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Shengxiu Liu
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
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7
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Hussain T, Tan B, Murtaza G, Metwally E, Yang H, Kalhoro MS, Kalhoro DH, Chughtai MI, Yin Y. Role of Dietary Amino Acids and Nutrient Sensing System in Pregnancy Associated Disorders. Front Pharmacol 2020; 11:586979. [PMID: 33414718 PMCID: PMC7783402 DOI: 10.3389/fphar.2020.586979] [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: 07/24/2020] [Accepted: 11/23/2020] [Indexed: 12/16/2022] Open
Abstract
Defective implantation is related to pregnancy-associated disorders such as spontaneous miscarriage, intrauterine fetal growth restriction and others. Several factors proclaimed to be involved such as physiological, nutritional, environmental and managemental that leads to cause oxidative stress. Overloading of free radicals promotes oxidative stress, and the internal body system could not combat its ability to encounter the damaging effects and subsequently leading to pregnancy-related disorders. During pregnancy, essential amino acids display important role for optimum fetal growth and other necessary functions for continuing fruitful pregnancy. In this context, dietary amino acids have received much attention regarding the nutritional concerns during pregnancy. Arginine, glutamine, tryptophan and taurine play a crucial role in fetal growth, development and survival while ornithine and proline are important players for the regulation of gene expression, protein synthesis and angiogenesis. Moreover, amino acids also stimulate the mammalian target of rapamycin (mTOR) signaling pathway which plays a central role in the synthesis of proteins in placenta, uterus and fetus. This review article explores the significances of dietary amino acids in pregnancy development, regulation of nutrient-sensing pathways such as mTOR, peroxisome proliferator-activated receptors (PPARs), insulin/insulin-like growth factor signaling pathway (IIS) and 5' adenosine monophosphate-activated protein kinase (AMPK) which exhibit important role in reproduction and its related problems. In addition, the antioxidant function of dietary amino acids against oxidative stress triggering pregnancy disorders and their possible outcomes will also be enlightened. Dietary supplementation of amino acids during pregnancy could help mitigate reproductive disorders and thereby improving fertility in animals as well as humans.
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Affiliation(s)
- Tarique Hussain
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
- Animal Sciences Division, Nuclear Institute for Agriculture and Biology College, Pakistan Institute of Engineering and Applied Sciences (NIAB-C,PIEAS), Faisalabad, Pakistan
| | - Bie Tan
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Ghulam Murtaza
- Department of Animal Reproduction, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Sindh, Pakistan
| | - Elsayed Metwally
- Department of Cytology & Histology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Huansheng Yang
- Hunan International Joint laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Muhammad Saleem Kalhoro
- Department of Animal Products Technology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Sindh, Pakistan
| | - Dildar Hussain Kalhoro
- Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Sindh, Pakistan
| | - Muhammad Ismail Chughtai
- Animal Sciences Division, Nuclear Institute for Agriculture and Biology College, Pakistan Institute of Engineering and Applied Sciences (NIAB-C,PIEAS), Faisalabad, Pakistan
| | - Yulong Yin
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
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8
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De Leye H, Saerens J, Janmohamed SR. News on infantile haemangioma. Part 1: clinical course and pathomechanism. Clin Exp Dermatol 2020; 46:473-479. [PMID: 33278055 DOI: 10.1111/ced.14502] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2020] [Indexed: 12/15/2022]
Abstract
Currently, there is no doubt that the first choice of treatment for alarming infantile haemangiomas (IHs) is oral beta-blockers. However, research in this field remains active, as the pathogenesis of IH is still not completely elucidated. Furthermore, there are different approaches to the management of IHs with beta-blockers. In Part 1 of this review we will discuss the state-of-the-art evidence for IH with regard to (i) the definition, epidemiology, course, risk factors and sequelae, and (ii) the pathogenesis, focusing on genetic studies. This review will update the reader on the latest developments in the pathogenesis of IH. Furthermore, we hope this review will give more insight into risk factors and sequelae of IH, thereby contributing to better decisions in the clinical management of patients with IH. The therapy and evaluation of IHs will be discussed in Part 2 of this review.
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Affiliation(s)
- H De Leye
- Department of Dermatology, Universitair Ziekenhuis Brussel (UZB), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - J Saerens
- Department of Dermatology, Universitair Ziekenhuis Brussel (UZB), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - S R Janmohamed
- Department of Dermatology, Universitair Ziekenhuis Brussel (UZB), Vrije Universiteit Brussel (VUB), Brussels, Belgium
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9
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Gabbert L, Dilling C, Meybohm P, Burek M. Deletion of Protocadherin Gamma C3 Induces Phenotypic and Functional Changes in Brain Microvascular Endothelial Cells In Vitro. Front Pharmacol 2020; 11:590144. [PMID: 33390965 PMCID: PMC7774295 DOI: 10.3389/fphar.2020.590144] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/09/2020] [Indexed: 01/25/2023] Open
Abstract
Inflammation of the central nervous system (CNS) is associated with diseases such as multiple sclerosis, stroke and neurodegenerative diseases. Compromised integrity of the blood-brain barrier (BBB) and increased migration of immune cells into the CNS are the main characteristics of brain inflammation. Clustered protocadherins (Pcdhs) belong to a large family of cadherin-related molecules. Pcdhs are highly expressed in the CNS in neurons, astrocytes, pericytes and epithelial cells of the choroid plexus and, as we have recently demonstrated, in brain microvascular endothelial cells (BMECs). Knockout of a member of the Pcdh subfamily, PcdhgC3, resulted in significant changes in the barrier integrity of BMECs. Here we characterized the endothelial PcdhgC3 knockout (KO) cells using paracellular permeability measurements, proliferation assay, wound healing assay, inhibition of signaling pathways, oxygen/glucose deprivation (OGD) and a pro-inflammatory cytokine tumor necrosis factor alpha (TNFα) treatment. PcdhgC3 KO showed an increased paracellular permeability, a faster proliferation rate, an altered expression of efflux pumps, transporters, cellular receptors, signaling and inflammatory molecules. Serum starvation led to significantly higher phosphorylation of extracellular signal-regulated kinases (Erk) in KO cells, while no changes in phosphorylated Akt kinase levels were found. PcdhgC3 KO cells migrated faster in the wound healing assay and this migration was significantly inhibited by respective inhibitors of the MAPK-, β-catenin/Wnt-, mTOR- signaling pathways (SL327, XAV939, or Torin 2). PcdhgC3 KO cells responded stronger to OGD and TNFα by significantly higher induction of interleukin 6 mRNA than wild type cells. These results suggest that PcdhgC3 is involved in the regulation of major signaling pathways and the inflammatory response of BMECs.
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Affiliation(s)
- Lydia Gabbert
- Department of Anaesthesia and Critical Care, University of Würzburg, Würzburg, Germany
| | - Christina Dilling
- Department of Anaesthesia and Critical Care, University of Würzburg, Würzburg, Germany
| | - Patrick Meybohm
- Department of Anaesthesia and Critical Care, University of Würzburg, Würzburg, Germany
| | - Malgorzata Burek
- Department of Anaesthesia and Critical Care, University of Würzburg, Würzburg, Germany
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10
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The knockdown of MALAT1 inhibits the proliferation, invasion and migration of hemangioma endothelial cells by regulating MiR-206 / VEGFA axis. Mol Cell Probes 2020; 51:101540. [DOI: 10.1016/j.mcp.2020.101540] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/17/2020] [Accepted: 02/17/2020] [Indexed: 01/06/2023]
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11
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Roberti SL, Higa R, White V, Powell TL, Jansson T, Jawerbaum A. Critical role of mTOR, PPARγ and PPARδ signaling in regulating early pregnancy decidual function, embryo viability and feto-placental growth. Mol Hum Reprod 2019. [PMID: 29538677 DOI: 10.1093/molehr/gay013] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
STUDY QUESTION What are the consequences of inhibiting mTOR, the mechanistic target of rapamycin (mTOR), and the peroxisome proliferator activated receptor gamma (PPARγ) and PPARδ pathways in the early post-implantation period on decidual function, embryo viability and feto-placental growth in the rat? SUMMARY ANSWER mTOR inhibition from Days 7 to 9 of pregnancy in rats caused decidual PPARγ and PPARδ upregulation on Day 9 of pregnancy and resulted in embryo resorption by Day 14 of pregnancy. PPARγ and PPARδ inhibition differentially affected decidual mTOR signaling and levels of target proteins relevant to lipid histotrophic nutrition and led to reduced feto-placental weights on Day 14 of pregnancy. WHAT IS KNOWN ALREADY Although mTOR, PPARγ and PPARδ are nutrient sensors important during implantation, the role of these signaling pathways in decidual function and how they interact in the early post-implantation period are unknown. Perilipin 2 (PLIN2) and fatty acid binding protein 4 (FABP4), two adipogenic proteins involved in lipid histotrophic nutrition, are targets of mTOR and PPAR signaling pathways in a variety of tissues. STUDY DESIGN, SIZE, DURATION Rapamycin (mTOR inhibitor, 0.75 mg/kg, sc), T0070907 (PPARγ inhibitor, 0.001 mg/kg, sc), GSK0660 (PPARδ inhibitor, 0.1 mg/kg, sc) or vehicle was injected daily to pregnant rats from Days 7 to 9 of pregnancy and the studies were performed on Day 9 of pregnancy (n = 7 per group) or Day 14 of pregnancy (n = 7 per group). PARTICIPANTS/MATERIALS, SETTING, METHODS On Day 9 of pregnancy, rat decidua were collected and prepared for western blot and immunohistochemical studies. On Day 14 of pregnancy, the resorption rate, number of viable fetuses, crown-rump length and placental and decidual weights were determined. MAIN RESULTS AND THE ROLE OF CHANCE Inhibition of mTOR in the early post-implantation period led to a reduction in FABP4 protein levels, an increase in PLIN2 levels and an upregulation of PPARγ and PPARδ in 9-day-pregnant rat decidua. Most embryos were viable on Day 9 of pregnancy but had resorbed by Day 14 of pregnancy. This denotes a key function of mTOR in the post-implantation period and suggests that activation of PPAR signaling was insufficient to compensate for impaired nutritional/survival signaling induced by mTOR inhibition. Inhibition of PPARγ signaling resulted in decreased decidual PLIN2 and FABP4 protein expression as well as in inhibition of decidual mTOR signaling in Day 9 of pregnancy. This treatment also reduced feto-placental growth on Day 14 of pregnancy, revealing the relevance of PPARγ signaling in sustaining post-implantation growth. Moreover, following inhibition of PPARδ, PLIN2 levels were decreased and mTOR complex 1 and 2 signaling was altered in decidua on Day 9 of pregnancy. On Day 14 of pregnancy, PPARδ inhibition caused reduced feto-placental weight, increased decidual weight and increased resorption rate, suggesting a key role of PPARδ in sustaining post-implantation development. LARGE SCALE DATA Not applicable. LIMITATIONS, REASONS FOR CAUTION This is an in vivo animal study and the relevance of the results for humans remains to be established. WIDER IMPLICATIONS OF THE FINDINGS The early post-implantation period is a critical window of development and changes in the intrauterine environment may cause embryo resorption and lead to placental and fetal growth restriction. mTOR, PPARγ and PPARδ signaling are decidual nutrient sensors with extensive cross-talk that regulates adipogenic proteins involved in histotrophic nutrition and important for embryo viability and early placental and fetal development and growth. STUDY FUNDING/COMPETING INTEREST(S) Funding was provided by the Agencia Nacional de Promoción Científica y Tecnológica de Argentina (PICT 2014-411 and PICT 2015-0130), and by the International Cooperation (Grants CONICET-NIH-2014 and CONICET-NIH-2017) to A.J. and T.J. The authors have no conflicts of interest.
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Affiliation(s)
- Sabrina L Roberti
- Universidad de Buenos Aires, Facultad de Medicina, Paraguay 2155, Buenos Aires, Argentina.,CONICET-Universidad de Buenos Aires, Laboratory of Reproduction and Metabolism, CEFYBO, 1121 CABA, Buenos Aires, Argentina
| | - Romina Higa
- Universidad de Buenos Aires, Facultad de Medicina, Paraguay 2155, Buenos Aires, Argentina.,CONICET-Universidad de Buenos Aires, Laboratory of Reproduction and Metabolism, CEFYBO, 1121 CABA, Buenos Aires, Argentina
| | - Verónica White
- Universidad de Buenos Aires, Facultad de Medicina, Paraguay 2155, Buenos Aires, Argentina.,CONICET-Universidad de Buenos Aires, Laboratory of Reproduction and Metabolism, CEFYBO, 1121 CABA, Buenos Aires, Argentina
| | - Theresa L Powell
- Section of Neonatology, Department of Pediatrics, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA.,Division of Reproductive Sciences, Department of OB/GYN, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Thomas Jansson
- Division of Reproductive Sciences, Department of OB/GYN, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Alicia Jawerbaum
- Universidad de Buenos Aires, Facultad de Medicina, Paraguay 2155, Buenos Aires, Argentina.,CONICET-Universidad de Buenos Aires, Laboratory of Reproduction and Metabolism, CEFYBO, 1121 CABA, Buenos Aires, Argentina
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12
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Laouirem S, Sannier A, Norkowski E, Cauchy F, Doblas S, Rautou PE, Albuquerque M, Garteiser P, Sognigbé L, Raffenne J, van Beers BE, Soubrane O, Bedossa P, Cros J, Paradis V. Endothelial fatty liver binding protein 4: a new targetable mediator in hepatocellular carcinoma related to metabolic syndrome. Oncogene 2018; 38:3033-3046. [PMID: 30575815 PMCID: PMC6484689 DOI: 10.1038/s41388-018-0597-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 11/07/2018] [Accepted: 11/08/2018] [Indexed: 12/18/2022]
Abstract
Metabolic syndrome (MS) is becoming the leading risk factor for hepatocellular carcinoma (HCC). HCC development related to MS may occur in advanced or non-advanced liver fibrosis, suggesting specific molecular pathways. Among these pathways, basal inflammatory state and adipokines production are involved. The aim of this study was to evaluate the role of fatty acid-binding protein 4 (FABP4). In this study, we demonstrate the specific overexpression of FABP4 in human HCC samples from patients with MS compared to other risk factors for chronic liver disease with FABP4 expression restricted to peritumoral endothelial cells. In vitro, glucose, insulin, VEGFA and hypoxia upregulated endothelial FABP4, which was reversed by metformin through mTOR pathway inhibition. FABP4 exerts oncogenic effects on hepatoma cell lines by upregulating the angiogenesis gene signature and pathways involved in the cell cycle, leading to increased cell proliferation and migration, and downregulating HIF1 pathway; effects were reversed in the presence of a specific FABP4 inhibitor (BMS309403). We showed the role of microvesicles as FABP4 vectors between endothelial and tumor cells. In vivo, BMS309403 significantly reduces tumor growth in heterotopic and orthotopic xenografted mice model. In conclusion, this study demonstrates the emerging oncogenic role of liver endothelial cells through FABP4 in HCC related to MS, and highlights new anti-neoplastic mechanism of metformin.
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Affiliation(s)
- Samira Laouirem
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France
| | - Aurélie Sannier
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France
| | - Emma Norkowski
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France
| | - François Cauchy
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France.,Hepatobiliary Surgery Dept., Beaujon Hospital, Clichy, France
| | - Sabrina Doblas
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France
| | | | | | | | - Laura Sognigbé
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France
| | - Jerôme Raffenne
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France
| | | | | | - Pierre Bedossa
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France
| | - Jerôme Cros
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France.,Pathology Dept., Beaujon Hospital, Clichy, France
| | - Valérie Paradis
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Paris, France. .,Pathology Dept., Beaujon Hospital, Clichy, France.
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13
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Sun H, Liu CZ, Liu C, Tang M, Cao G, Zhang Q, Gu X. Employing the Sirolimus-Eluting Poly (Propylene Carbonate) Mesh for the Prevention of Arteriovenous Graft Stenosis in Rats. J Cardiovasc Pharmacol Ther 2018; 24:269-277. [PMID: 30474386 DOI: 10.1177/1074248418806060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Poly (propylene carbonate, PPC) is a new member of the aliphatic polyester family. An outstanding feature of PPC is that it produces mainly water and carbon dioxide when degraded in vivo, causing minimal side effects. This unique property together with excellent biocompatibility and biodegradability makes PPC a promising material for drug delivery. In this study, we explored the effect of the sirolimus (an inhibitor of cell growth)-eluting PPC mesh on graft stenosis and its possible mechanisms in a rat arteriovenous grafting model. The PPC mesh was prepared by electrospinning. A jugular vein to abdominal aortic autograft transplantation model was established in rats. The graft was then treated by wrapping with the drug mesh or the drug-free mesh or left untreated. Four weeks posttransplantation, neointima was measured with hematoxylin and eosin staining, matrix metalloproteinase-2 (MMP-2), and MMP-9, and proliferating cell nuclear antigen (PCNA) in the grafts were assayed by Western blotting and immunohistochemistry, respectively. In vitro rat aortic adventitial fibroblast cell (RAAFC) migration was assessed using the Boyden chamber assay, and phospho-mammalian target of rapamycin (mTOR) levels in RAAFCs were determined by Western blotting. Animals with the drug mesh had an intimal area index of 4.87% ± 0.98%, significantly lower than that of the blank group (14.21% ± 2.56%) or the PPC group (15.03% ± 2.35%, both P < .05). The sirolimus mesh markedly suppressed MMP-2 and MMP-9 expression, decreased PCNA-positive cell numbers, inhibited RAAFC migration, and reduced phospho-mTOR levels. Our data suggest that the sirolimus-eluting PPC mesh might be potentially applied for the management of grafting stenosis.
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Affiliation(s)
- Hourong Sun
- 1 Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Chuan-Zhen Liu
- 1 Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Chunxiao Liu
- 1 Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Mengmeng Tang
- 1 Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Guangqing Cao
- 1 Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Qiuwang Zhang
- 2 Division of Cardiology, Keenan Research Center for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Xinghua Gu
- 1 Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
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14
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Gao X, Zhang T, Zeng XY, Li GJ, Du LJ, Ma ZH, Wan J, Yang Y. Effect of silencing lncRNATUG1 on rapamycin-induced inhibition of endothelial cell proliferation and migration. Exp Ther Med 2018; 16:1891-1899. [PMID: 30186415 PMCID: PMC6122411 DOI: 10.3892/etm.2018.6352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Accepted: 05/17/2018] [Indexed: 12/12/2022] Open
Abstract
Angiogenesis refers to the formation of new blood vessels from existing blood vessels. The proliferation and migration of endothelial cells serves a key function in this process. Previous research has demonstrated that rapamycin suppresses endothelial cell proliferation and migration, as well as angiogenesis. However, the mechanism by which rapamycin inhibits the proliferation and migration of endothelial cells remains unclear. Long noncoding RNAs (lncRNAs) serve a key function in the regulation of endothelial cell function. The aim of the current study was to investigate whether lncRNA taurine upregulated 1 (lncRNATUG1) is involved in rapamycin-induced inhibition of proliferation and migration in human umbilical vein endothelial cells (HUVECs). Reverse transcription quantitative polymerase chain reaction results indicated that the expression of lncRNATUG1 was upregulated in HUVECs that had been cultured with rapamycin. Subsequently, HUVECs were transfected with siRNAs and CCK-8 assays were performed to detect cell proliferation; additionally, flow cytometry was employed to detect cell apoptosis, and wound healing assays were performed to investigate cell migration. The results demonstrated that rapamycin suppressed the proliferation and migration of HUVECs, and promoted the apoptosis of HUVECs. In addition, rapamycin downregulated the expression of vascular endothelial growth factor (VEGF), matrix metalloproteinase (MMP)-2 and MMP-9 in HUVECs. However, silencing of lncRNATUG1 was revealed to attenuate rapamycin-induced inhibition of cellular proliferation and migration of HUVECs, as well as upregulating the expression of VEGF, MMP2 and MMP-9. These results suggested that lncRNATUG1 regulates rapamycin-induced inhibition of endothelial cell proliferation and migration. Therefore, lncRNATUG1 may serve a key function in rapamycin-induced inhibition of endothelial cell proliferation and migration.
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Affiliation(s)
- Xue Gao
- Department of Geriatric Disease, The First Hospital of Kunming, Kunming, Yunnan 650011, P.R. China
| | - Tao Zhang
- Department of Geriatric Disease, The First Hospital of Kunming, Kunming, Yunnan 650011, P.R. China
| | - Xi-Yun Zeng
- Department of Geriatric Disease, The First Hospital of Kunming, Kunming, Yunnan 650011, P.R. China
| | - Guo-Jian Li
- Department of Vascular Surgery, The Fourth Affiliated Hospital, Kunming Medical University, The Second People's Hospital of Yunnan Province, Kunming, Yunnan 650021, P.R. China
| | - Ling-Juan Du
- Department of Vascular Surgery, The Fourth Affiliated Hospital, Kunming Medical University, The Second People's Hospital of Yunnan Province, Kunming, Yunnan 650021, P.R. China
| | - Zhen-Huan Ma
- Department of Vascular Surgery, The Fourth Affiliated Hospital, Kunming Medical University, The Second People's Hospital of Yunnan Province, Kunming, Yunnan 650021, P.R. China
| | - Jia Wan
- Department of Vascular Surgery, The Fourth Affiliated Hospital, Kunming Medical University, The Second People's Hospital of Yunnan Province, Kunming, Yunnan 650021, P.R. China
| | - Yong Yang
- Department of Vascular Surgery, The Fourth Affiliated Hospital, Kunming Medical University, The Second People's Hospital of Yunnan Province, Kunming, Yunnan 650021, P.R. China
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15
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Mabeta P. Oncosuppressors and Oncogenes: Role in Haemangioma Genesis and Potential for Therapeutic Targeting. Int J Mol Sci 2018; 19:E1192. [PMID: 29652858 PMCID: PMC5979526 DOI: 10.3390/ijms19041192] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/26/2018] [Accepted: 04/04/2018] [Indexed: 01/08/2023] Open
Abstract
Genetic lesions in proto-oncogenes result in the perturbation of angiogenesis, the formation of neovessels from a pre-existing microvasculature. Similarly, the subversion of tumor suppressor genes promotes tumor vascularization. Excessive neovessel formation is associated with various neoplasms such as infantile hemangiomas (IH). Hemangiomas are the most common tumors in pediatric patients and at present have no definitive treatment. The pathogenesis of IH is not well understood; however, both vasculogenesis and angiogenesis are associated with hemangioma genesis. A number of factors that modulate angiogenesis and vasculogenesis have been shown to be dysregulated in IH. Several of the oncogenes and tumor suppressors linked to the promotion of angiogenesis are also altered in infantile hemangioma. In this review, the roles of oncogenes and tumor suppressor genes during neovascularization and hemangioma genesis are explored. In addition, the potential for targeting these genes in IH therapy is discussed.
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Affiliation(s)
- Peace Mabeta
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, 9 Botshelo Road, Pretoria 0007, South Africa.
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16
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Zhang YP, Huang YT, Huang TS, Pang W, Zhu JJ, Liu YF, Tang RZ, Zhao CR, Yao WJ, Li YS, Chien S, Zhou J. The Mammalian Target of Rapamycin and DNA methyltransferase 1 axis mediates vascular endothelial dysfunction in response to disturbed flow. Sci Rep 2017; 7:14996. [PMID: 29118325 PMCID: PMC5678172 DOI: 10.1038/s41598-017-15387-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 10/16/2017] [Indexed: 02/06/2023] Open
Abstract
The earliest atherosclerotic lesions preferentially develop in arterial regions experienced disturbed blood flow, which induces endothelial expression of pro-atherogenic genes and the subsequent endothelial dysfunction. Our previous study has demonstrated an up-regulation of DNA methyltransferase 1 (DNMT1) and a global hypermethylation in vascular endothelium subjected to disturbed flow. Here, we determined that DNMT1-specific inhibition in arterial wall ameliorates the disturbed flow-induced atherosclerosis through, at least in part, targeting cell cycle regulator cyclin A and connective tissue growth factor (CTGF). We identified the signaling pathways mediating the flow-induction of DNMT1. Inhibition of the mammalian target of rapamycin (mTOR) suppressed the DNMT1 up-regulation both in vitro and in vivo. Together, our results demonstrate that disturbed flow influences endothelial function and induces atherosclerosis in an mTOR/DNMT1-dependent manner. The conclusions obtained from this study might facilitate further evaluation of the epigenetic regulation of endothelial function during the pathological development of atherosclerosis and offer novel prevention and therapeutic targets of this disease.
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Affiliation(s)
- Yun-Peng Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, P.R. China
| | - Yi-Tao Huang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, P.R. China
| | - Tse-Shun Huang
- Department of Bioengineering and Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Wei Pang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, P.R. China
| | - Juan-Juan Zhu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, P.R. China
| | - Yue-Feng Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, P.R. China
| | - Run-Ze Tang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, P.R. China
| | - Chuan-Rong Zhao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, P.R. China
| | - Wei-Juan Yao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, P.R. China
| | - Yi-Shuan Li
- Department of Bioengineering and Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Shu Chien
- Department of Bioengineering and Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Jing Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, P.R. China.
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17
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Gong WL, Sha C, Du G, Shan ZG, Qi ZQ, Zhou SF, Yang N, Zhao YX. Preoperative application of combination of portal venous injection of donor spleen cells and intraperitoneal injection of rapamycin prolongs the survival of cardiac allografts in mice. ASIAN PAC J TROP MED 2017. [PMID: 28647182 DOI: 10.1016/j.apjtm.2017.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To investigate the effects of preoperative portal venous injection of donor spleen cells (PVIDSC) and intraperitoneal injection of rapamycin in the acute rejection of cardiac allograft in mice and the underlying mechanisms. METHODS Homogenous female B6 mice and BALB/c mice were used as recipients and donors of heart transplantation. These mice were randomly divided into different groups and received PVIDSC alone, rapamycin alone, or PVIDSC and rapamycin combined therapy. In addition, the underlying mechanism was studied by measuring a number of cytokines. RESULTS Preoperative combination of PVIDSC and intraperitoneal injection of rapamycin significantly prolonged the survival of heterotopic cardiac allograft in mice, but had no effects on the survival time of cardiac allografts in mice pre-sensitized by skin grafting. Preoperative combination of PVIDSC and intraperitoneal injection of rapamycin increased the expression of IL-10 and Foxp3 and reduced the expression of INF-. Short-term preoperative administration of rapamycin promotes the expression of CD4+CD25+Foxp3+ regulator T cells. However, preoperative using alone of rapamycin, or combination of PVIDSC and rapamycin had no effects on the inhibition of proliferation of memory T cells. CONCLUSIONS Preoperative application of combination of PVIDSC and rapamycin significantly prolonged the survival time of cardiac allografts in mice but not in mice pre-sensitized by skin grafting. This may be explained by the fact that combination of PVIDSC and rapamycin inhibited the cellular immune response and induced the expression of IL-10 from Tr1 cells and CD4+CD25+FoxP3+ regulatory T cells.
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Affiliation(s)
- Wen-Lin Gong
- National Center for International Research of Biological Targeting Diagnosis and Therapy, Guangxi Key Laboratory of Biological Targeting Diagnosis and Therapy Research, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Chuang Sha
- Department of Cardiac Surgery, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Gang Du
- National Center for International Research of Biological Targeting Diagnosis and Therapy, Guangxi Key Laboratory of Biological Targeting Diagnosis and Therapy Research, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Zhong-Gui Shan
- Organ Transplantation Institute, Xiamen University, Xiamen, China
| | - Zhong-Quan Qi
- Organ Transplantation Institute, Xiamen University, Xiamen, China
| | - Su-Fang Zhou
- National Center for International Research of Biological Targeting Diagnosis and Therapy, Guangxi Key Laboratory of Biological Targeting Diagnosis and Therapy Research, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Nuo Yang
- National Center for International Research of Biological Targeting Diagnosis and Therapy, Guangxi Key Laboratory of Biological Targeting Diagnosis and Therapy Research, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, Guangxi, 530021, China; Department of Cardio-Thoracic Surgery, The First Affiliated Hospital of Guang Xi Medical University, Nanning 530021, China
| | - Yong-Xiang Zhao
- National Center for International Research of Biological Targeting Diagnosis and Therapy, Guangxi Key Laboratory of Biological Targeting Diagnosis and Therapy Research, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, Guangxi, 530021, China; Department of Cardio-Thoracic Surgery, The First Affiliated Hospital of Guang Xi Medical University, Nanning 530021, China
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18
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Blei F. Update March 2017. Lymphat Res Biol 2017. [DOI: 10.1089/lrb.2017.29019.fb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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