1
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Pastura P, McDaniel CG, Alharbi S, Fox D, Coleman B, Malik P, Adams DM, Le Cras TD. NRAS Q61R mutation drives elevated angiopoietin-2 expression in human endothelial cells and a genetic mouse model. Pediatr Blood Cancer 2024; 71:e31032. [PMID: 38711167 PMCID: PMC11116044 DOI: 10.1002/pbc.31032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/10/2024] [Accepted: 04/10/2024] [Indexed: 05/08/2024]
Abstract
BACKGROUND Angiopoietin-2 (Ang-2) is increased in the blood of patients with kaposiform lymphangiomatosis (KLA) and kaposiform hemangioendothelioma (KHE). While the genetic causes of KHE are not clear, a somatic activating NRASQ61R mutation has been found in the lesions of KLA patients. PROCEDURE Our study tested the hypothesis that the NRASQ61R mutation drives elevated Ang-2 expression in endothelial cells. Ang-2 was measured in human endothelial progenitor cells (EPC) expressing NRASQ61R and a genetic mouse model with endothelial targeted NRASQ61R. To determine the signaling pathways driving Ang-2, NRASQ61R EPC were treated with signaling pathway inhibitors. RESULTS Ang-2 levels were increased in EPC expressing NRASQ61R compared to NRASWT by Western blot analysis of cell lysates and ELISA of the cell culture media. Ang-2 levels were elevated in the blood of NRASQ61R mutant mice. NRASQ61R mutant mice also had reduced platelet counts and splenomegaly with hypervascular lesions, like some KLA patients. mTOR inhibitor rapamycin attenuated Ang-2 expression by NRASQ61R EPC. However, MEK1/2 inhibitor trametinib was more effective blocking increases in Ang-2. CONCLUSIONS Our studies show that the NRASQ61R mutation in endothelial cells induces Ang-2 expression in vitro and in vivo. In cultured human endothelial cells, NRASQ61R drives elevated Ang-2 through MAP kinase and mTOR-dependent signaling pathways.
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Affiliation(s)
- Patricia Pastura
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - C. Griffin McDaniel
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Sara Alharbi
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Dermot Fox
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Bethany Coleman
- Department of Molecular & Cellular Biosciences, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Punam Malik
- Division of Experimental Hematology and Cancer Biology, Cancer and Blood Disease Institute,
Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Denise M. Adams
- Division of Oncology, Comprehensive Vascular Anomalies Program, Children’s Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Timothy D. Le Cras
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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2
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Das K, Sheppard S, Yadav B, Turner JT, Bornhorst M, Siegel AH, Yano JC, Lobo VG. Kaposiform Lymphangiomatosis as a Cause of Vaginal Bleeding & Discharge: A Case Report. J Pediatr Adolesc Gynecol 2024:S1083-3188(24)00235-3. [PMID: 38936506 DOI: 10.1016/j.jpag.2024.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 06/12/2024] [Accepted: 06/16/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND Prepubertal vaginal bleeding is a common presentation for pediatric adolescent gynecologists with a broad differential diagnosis that historically may not have included complex lymphatic anomalies. However, given recent consensus criteria and imaging capabilities, this may be a condition that pediatric adolescent gynecologists see more frequently in the future. CASE We present a case of a 5-year-old pre-pubertal girl whose only presenting symptoms of a rare complex lymphatic anomaly was copious vaginal bleeding. After three vaginoscopies, two hysteroscopies, two pelvic MRIs, and a percutaneous ultrasound guided core needle biopsy, this patient was eventually diagnosed with Kaposiform lymphangiomatosis at age 9 years-old, and she is now being treated medically with sirolimus, a mammalian target of rapamycin (mTOR) inhibitor, with improvement in her symptoms. SUMMARY AND CONCLUSION Complex lymphatic anomalies should be considered after initial and secondary workups for pre-pubertal vaginal bleeding or copious vaginal discharge are negative. Furthermore, this case illustrates the value of pelvic MRI in the setting of unknown cause of vaginal bleeding when typical workup is negative.
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Affiliation(s)
- Kirsten Das
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Department of Pediatric and Adolescent Gynecology, Bethesda, MD, NIH Z1A, HD008985, (JM and VGL); Children's National Hospital, Pediatric and Adolescent Gynecology Program, Washington, DC.
| | - Sarah Sheppard
- Unit on Vascular Malformations, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Bethesda, MD, HD009003-01
| | - Bhupender Yadav
- Pediatric Interventional Radiology, Children's National Hospital, Washington, DC
| | - Joyce Tannenbaum Turner
- Genetics and Metabolism, Children's National Hospital, Rare Disease Institute, Bethesda, MD, Oncology, Children's National Hospital
| | - Miriam Bornhorst
- Pediatric Neurooncology, Children's National Hospital, Washington, DC
| | - Alan H Siegel
- Center for Cancer and Blood Disorders, Children's National Hospital, Washington, DC, 20010
| | - Jacqueline C Yano
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Department of Pediatric and Adolescent Gynecology, Bethesda, MD, NIH Z1A, HD008985, (JM and VGL); Children's National Hospital, Pediatric and Adolescent Gynecology Program, Washington, DC
| | - Veronica Gomez Lobo
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Department of Pediatric and Adolescent Gynecology, Bethesda, MD, NIH Z1A, HD008985, (JM and VGL); Children's National Hospital, Pediatric and Adolescent Gynecology Program, Washington, DC
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3
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Borst AJ, Britt A, Adams DM. Complex lymphatic anomalies: Molecular landscape and medical management. Semin Pediatr Surg 2024; 33:151422. [PMID: 38833763 DOI: 10.1016/j.sempedsurg.2024.151422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The lymphatic system is one of the most essential and complex systems in the human body. Disorders that affect the development or function of the lymphatic system can lead to multi-system complications and life-long morbidity. The past two decades have seen remarkable progress in our knowledge of the basic biology and function of the lymphatic system, the molecular regulators of lymphatic development, and description of disorders associated with disrupted lymphangiogensis. In this chapter we will touch on the clinical features of complex lymphatic anomalies, new molecular knowledge of the drivers of these disorders, and novel developmental therapeutics for lymphatic disease.
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Affiliation(s)
- Alexandra J Borst
- Division of Hematology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Allison Britt
- Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Denise M Adams
- Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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4
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Yasue S, Ozeki M, Nozawa A, Endo S, Ohnishi H. Changes in cell morphology and function induced by the NRAS Q61R mutation in lymphatic endothelial cells. PLoS One 2024; 19:e0289187. [PMID: 38809881 PMCID: PMC11135733 DOI: 10.1371/journal.pone.0289187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 05/06/2024] [Indexed: 05/31/2024] Open
Abstract
Recently, a low-level somatic mutation in the NRAS gene (c.182 A > G, Q61R) was identified in various specimens from patients with kaposiform lymphangiomatosis. However, it is unknown how these low-frequency mutated cells can affect the characterization and surrounding environment of their lesions. To understand the pathogenesis and association of these gene abnormalities, we established NRASQ61R mutated lymphatic endothelial cells transfected with lentivirus vector and undertook morphological and functional characterization, protein expression profiling, and metabolome analysis. NRASQ61R human dermal lymphatic endothelial cells showed poor tube formation, a low proliferation rate, and high migration ability, with an increase in the ratio of mutated cells. An analysis of signaling pathways showed inactivation of the PIK3/AKT/mTOR pathway and hyperactivation of the RAS/MAPK/ERK pathway, which was improved by MAPK kinase (MEK) inhibitor treatment. This study shows the theoretical circumstances induced in vitro by NRASQ61R-mutated cells in the affected lesions of kaposiform lymphangiomatosis patients.
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Affiliation(s)
- Shiho Yasue
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Michio Ozeki
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Akifumi Nozawa
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Saori Endo
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
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5
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Hammill AM, Boscolo E. Capillary malformations. J Clin Invest 2024; 134:e172842. [PMID: 38618955 PMCID: PMC11014659 DOI: 10.1172/jci172842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024] Open
Abstract
Capillary malformation (CM), or port wine birthmark, is a cutaneous congenital vascular anomaly that occurs in 0.1%-2% of newborns. Patients with a CM localized on the forehead have an increased risk of developing a neurocutaneous disorder called encephalotrigeminal angiomatosis or Sturge-Weber syndrome (SWS), with complications including seizure, developmental delay, glaucoma, and vision loss. In 2013, a groundbreaking study revealed causative activating somatic mutations in the gene (GNAQ) encoding guanine nucleotide-binding protein Q subunit α (Gαq) in CM and SWS patient tissues. In this Review, we discuss the disease phenotype, the causative GNAQ mutations, and their cellular origin. We also present the endothelial Gαq-related signaling pathways, the current animal models to study CM and its complications, and future options for therapeutic treatment. Further work remains to fully elucidate the cellular and molecular mechanisms underlying the formation and maintenance of the abnormal vessels.
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Affiliation(s)
- Adrienne M. Hammill
- Division of Hematology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Elisa Boscolo
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
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6
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Kothandaraman V, Wisener J, Helgerson PW. Complex lymphatic anomalies: Challenging diagnostic considerations. Clin Case Rep 2024; 12:e8370. [PMID: 38161630 PMCID: PMC10756942 DOI: 10.1002/ccr3.8370] [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: 09/13/2023] [Revised: 11/14/2023] [Accepted: 12/14/2023] [Indexed: 01/03/2024] Open
Abstract
Diagnosis of complex lymphatic anomalies can be difficult, and biopsies can be associated with significant morbidity. Mediastinal masses with features such as osseous involvement warrant thorough noninvasive evaluation prior to biopsy.
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Affiliation(s)
| | - John Wisener
- University of Virginia Medical CenterCharlottesvilleVirginiaUSA
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7
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Mehrara BJ, Radtke AJ, Randolph GJ, Wachter BT, Greenwel P, Rovira II, Galis ZS, Muratoglu SC. The emerging importance of lymphatics in health and disease: an NIH workshop report. J Clin Invest 2023; 133:e171582. [PMID: 37655664 PMCID: PMC10471172 DOI: 10.1172/jci171582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
The lymphatic system (LS) is composed of lymphoid organs and a network of vessels that transport interstitial fluid, antigens, lipids, cholesterol, immune cells, and other materials in the body. Abnormal development or malfunction of the LS has been shown to play a key role in the pathophysiology of many disease states. Thus, improved understanding of the anatomical and molecular characteristics of the LS may provide approaches for disease prevention or treatment. Recent advances harnessing single-cell technologies, clinical imaging, discovery of biomarkers, and computational tools have led to the development of strategies to study the LS. This Review summarizes the outcomes of the NIH workshop entitled "Yet to be Charted: Lymphatic System in Health and Disease," held in September 2022, with emphasis on major areas for advancement. International experts showcased the current state of knowledge regarding the LS and highlighted remaining challenges and opportunities to advance the field.
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Affiliation(s)
- Babak J. Mehrara
- Department of Plastic and Reconstructive Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Andrea J. Radtke
- Lymphocyte Biology Section and Center for Advanced Tissue Imaging, Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Gwendalyn J. Randolph
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Brianna T. Wachter
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Patricia Greenwel
- Division of Digestive Diseases & Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, and
| | - Ilsa I. Rovira
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, NIH, Bethesda, Maryland, USA
| | - Zorina S. Galis
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, NIH, Bethesda, Maryland, USA
| | - Selen C. Muratoglu
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, NIH, Bethesda, Maryland, USA
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8
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Lan Y, Zhou J, Qiu T, Gong X, Ji Y. Refractory kaposiform lymphangiomatosis relieved by splenectomy. Front Pediatr 2023; 11:1203336. [PMID: 37664553 PMCID: PMC10469894 DOI: 10.3389/fped.2023.1203336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 08/02/2023] [Indexed: 09/05/2023] Open
Abstract
Introduction Kaposiform lymphangiomatosis (KLA) is a rare and complex lymphatic anomaly with a poor prognosis. There is no standard treatment, and drug therapies are the most common therapeutic method. However, some patients' symptoms become gradually aggravated despite medical treatment. Splenectomy may be an alternative option when pharmacological therapies are ineffective. Materials and Methods We reviewed and evaluated the cases of 3 patients with KLA who ultimately underwent splenectomy. Results: The lesions were diffusely distributed and involved the lungs and spleens of the 3 patients. Laboratory examinations revealed that all three patients had thrombocytopenia and reduced fibrinogen levels. All patients underwent symptomatic splenectomy after the medication failed. Surprisingly, their symptoms greatly improved. Histopathological investigation of the splenic lesions of the three patients confirmed the diagnosis of KLA. Immunohistochemical staining showed positivity for CD31, CD34, podoplanin, Prox-1 and angiopoietin 2 (Ang-2). Discussion This study aimed to review the features of KLA patients treated by splenectomy and explore the underlying link between splenectomy and prognosis. The reason for the improvement after splenectomy may be related to increased Ang-2 levels and platelet activation in patients with KLA. Future research should seek to develop more targeted drugs based on molecular findings, which may give new hope for the treatment of KLA.
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Affiliation(s)
| | | | | | | | - Yi Ji
- Department of Pediatric Surgery, West China Hospital of Sichuan University, Chengdu, China
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9
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McDaniel CG, Adams DM, Steele KE, Hammill AM, Merrow AC, Crane JL, Smith CL, Kozakewich HPW, Le Cras TD. Kaposiform lymphangiomatosis: Diagnosis, pathogenesis, and treatment. Pediatr Blood Cancer 2023; 70:e30219. [PMID: 36683202 PMCID: PMC10018800 DOI: 10.1002/pbc.30219] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/14/2022] [Accepted: 01/03/2023] [Indexed: 01/24/2023]
Abstract
Kaposiform lymphangiomatosis (KLA) is a life-threatening rare disease that can cause substantial morbidity, mortality, and social burdens for patients and their families. Diagnosis often occurs long after initial symptoms, and there are few centers in the world with the expertise to diagnose and care for patients with the disease. KLA is a lymphatic anomaly and significant advancements have been made in understanding its pathogenesis and etiology since its first description in 2014. This review provides multidisciplinary, comprehensive, and state-of-the-art information on KLA patient presentation, diagnostic imaging, pathology, organ involvement, genetics, and pathogenesis. Finally, we describe current therapeutic approaches, important areas for research, and challenges faced by patients and their families. Further insights into the pathogenesis of KLA may advance our understanding of other vascular anomalies given that similar signaling pathways may be involved.
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Affiliation(s)
| | - Denise M. Adams
- Children’s Hospital of Philadelphia, Philadelphia,
Pennsylvania
| | - Kimberley E. Steele
- Collaborative Research Advocacy for Vascular Anomalies
Network (CaRAVAN), a 501(C)(3)
| | - Adrienne M. Hammill
- University of Cincinnati College of Medicine, Cincinnati,
Ohio
- Cincinnati Children’s Hospital and Medical Center,
Cincinnati, Ohio
| | - A. Carl Merrow
- University of Cincinnati College of Medicine, Cincinnati,
Ohio
- Cincinnati Children’s Hospital and Medical Center,
Cincinnati, Ohio
| | - Janet L. Crane
- Johns Hopkins University School of Medicine, Baltimore,
Maryland
| | | | | | - Timothy D. Le Cras
- University of Cincinnati College of Medicine, Cincinnati,
Ohio
- Cincinnati Children’s Hospital and Medical Center,
Cincinnati, Ohio
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10
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Nagao D, Ozeki M, Nozawa A, Yasue S, Sasai H, Endo S, Kato T, Hori Y, Ohnishi H. A Case of Multifocal Lymphangioendotheliomatosis With Thrombocytopenia and Changes in Coagulopathy. J Pediatr Hematol Oncol 2023; 45:e384-e388. [PMID: 36730448 DOI: 10.1097/mph.0000000000002597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/16/2022] [Indexed: 02/04/2023]
Abstract
Multifocal lymphangioendotheliomatosis with thrombocytopenia is a rare disease characterized by progressive multiple vascular lesions and is accompanied by thrombocytopenia. The precise diagnosis of this disease is frequently difficult because of the heterogeneity of the clinical symptoms. We report a case of a male infant who presented with severe thrombocytopenia induced by local inflammation. In addition, enlargement of the extremities with soft tissue and bone involvement without gastrointestinal bleeding was observed. The thrombocytopenia resolved after a combination therapy of sirolimus and prednisolone. Our finding that plasma angiopoietin-2 concentrations reflected the disease status suggests its utility as a biomarker of Multifocal lymphangioendotheliomatosis with thrombocytopenia.
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Affiliation(s)
| | | | - Akifumi Nozawa
- Department of Pediatrics
- Department of Medical Genetics, Tohoku University School of Medicine, Sendai
| | | | | | | | - Takazumi Kato
- Department of Digestive Surgery and Pediatric Surgery, Gifu University Graduate School of Medicine, Gifu
| | - Yumiko Hori
- Department of Pathology, Osaka University Graduate School of Medicine
- Department of Central Laboratory and Surgical Pathology, National Hospital Organization, Osaka National Hospital, Osaka, Japan
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11
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Andreoti TAA, Berg S, Holm A, Angerer M, Oberlin M, Foeldi E, Baumgartner I, Niemeyer CM, Rössler J, Kapp FG. Complex Lymphatic Anomalies: Report on a Patient Registry Using the Latest Diagnostic Guidelines. Lymphat Res Biol 2023. [PMID: 36706428 DOI: 10.1089/lrb.2022.0041] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Objective: Generalized lymphatic anomaly (GLA), Gorham-Stout disease (GSD), kaposiform lymphangiomatosis (KLA), and central conducting lymphatic anomaly (CCLA) are rare, multisystem lymphatic disorders, referred to as complex lymphatic anomalies (CLAs). Their etiology remains poorly understood; however, somatic activating mutations have recently been discovered, and the results of targeted treatments are promising. This study aimed to elaborate on the phenotypic description of CLA. Methods: Thirty-six consecutive patients were recruited for the "GLA/GSD Registry" of the University Hospital of Freiburg, Germany (2015-2021). Clinical data were prospectively collected provided that a signed informed consent form was obtained. The latest proposed diagnostic guidelines were retrospectively applied. Results: Thirty-two patients (38% males) were included in the study; 15 GLA, 10 GSD, 3 KLA, and 4 CCLA patients were identified. Eighty-four percent already had symptoms by the age of 15 years. Osteolysis and periosseous soft-tissue infiltration were associated with GSD (p < 0.001 and p = 0.011, respectively), ascites and protein-losing enteropathy with CCLA (p = 0.007 and p = 0.004, respectively), and consumption coagulopathy with KLA (p = 0.006). No statistically significant differences were found in organ involvement, distribution of osteolytic lesions, number of affected bones and fractures. Twenty-five patients had complications; one patient with GLA died despite multimodal treatment. Spontaneous regression was seen in one patient with untreated KLA. Conclusions: CLA are rare, and their overlapping clinical presentations make differential diagnosis difficult. The characterization of our case series contributes to the phenotypic description and differentiation of these four clinical entities. A further understanding of their pathogenesis is crucial for evaluating targeted therapies and optimizing medical care.
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Affiliation(s)
- Themis-Areti A Andreoti
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Inselspital-University Hospital of Bern, University of Bern, Bern, Switzerland.,Graduate School for Health Sciences, University of Bern, Bern, Switzerland
| | - Sebastian Berg
- Division of Pediatric Radiology, Department of Radiology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,VASCERN (European Network of rare vascular diseases) HCP (Health Care Provider) Freiburg-Hinterzarten, Germany
| | - Annegret Holm
- VASCERN (European Network of rare vascular diseases) HCP (Health Care Provider) Freiburg-Hinterzarten, Germany.,Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Vascular Biology Program, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Marina Angerer
- VASCERN (European Network of rare vascular diseases) HCP (Health Care Provider) Freiburg-Hinterzarten, Germany.,Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Michael Oberlin
- VASCERN (European Network of rare vascular diseases) HCP (Health Care Provider) Freiburg-Hinterzarten, Germany.,Foeldiclinic, Hinterzarten, Germany
| | - Etelka Foeldi
- VASCERN (European Network of rare vascular diseases) HCP (Health Care Provider) Freiburg-Hinterzarten, Germany.,Foeldiclinic, Hinterzarten, Germany
| | - Iris Baumgartner
- Division of Angiology, Swiss Cardiovascular Center, Inselspital-University Hospital of Bern, University of Bern, Bern, Switzerland
| | - Charlotte M Niemeyer
- VASCERN (European Network of rare vascular diseases) HCP (Health Care Provider) Freiburg-Hinterzarten, Germany.,Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jochen Rössler
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Inselspital-University Hospital of Bern, University of Bern, Bern, Switzerland.,VASCERN (European Network of rare vascular diseases) HCP (Health Care Provider) Freiburg-Hinterzarten, Germany.,Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Friedrich G Kapp
- VASCERN (European Network of rare vascular diseases) HCP (Health Care Provider) Freiburg-Hinterzarten, Germany.,Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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12
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Cohen OG, Florez-Pollack S, Finn LS, Larijani M, Jen M, Treat J, Adams DM, Acord MR. Multifocal Kaposiform Hemangioendothelioma in a Newborn With Confirmatory Histopathology. Pediatrics 2022; 150:189664. [PMID: 36193691 DOI: 10.1542/peds.2022-056293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/20/2022] [Indexed: 11/05/2022] Open
Abstract
Kaposiform hemangioendothelioma is classified as a locally aggressive vascular tumor of childhood resulting from abnormal angiogenesis and lymphangiogenesis. Most commonly, KHE presents as a single tissue mass, ranging from an erythematous papule to a violaceous indurated tumor. Definitive diagnosis requires tissue sampling with the demonstration of ill-defined nodules and fascicles of spindle-shaped D2-40 positive endothelial cells, forming slit-like vascular channels. This newborn presented with multifocal cutaneous Kaposiform hemangioendothelioma associated with Kasabach-Merritt phenomenon confirmed on histopathology with immunostaining.
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Affiliation(s)
| | | | - Laura S Finn
- Departments of Pathology and Laboratory Medicine
| | | | | | - James Treat
- Section of Dermatology.,Comprehensive Vascular Anomaly Program
| | - Denise M Adams
- Comprehensive Vascular Anomaly Program.,Division of Oncology
| | - Michael R Acord
- University of Pennsylvania Perelman School of Medicine.,Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
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13
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Ricci KW, Iacobas I. How we approach the diagnosis and management of complex lymphatic anomalies. Pediatr Blood Cancer 2022; 69 Suppl 3:e28985. [PMID: 33844431 DOI: 10.1002/pbc.28985] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 01/29/2021] [Accepted: 02/13/2021] [Indexed: 12/26/2022]
Abstract
Complex lymphatic anomalies (CLA) are congenital diseases of the lymphatic circulation system that are associated with significant morbidity and early mortality. While guidelines for the comprehensive evaluation of the CLA were recently published, the diagnostic approach and medical management are not standardized. This article presents the clinical features of four CLA: Gorham-Stout disease, generalized lymphatic anomaly, kaposiform lymphangiomatosis, and central collecting lymphatic anomaly. We also offer three cases from the authors' practice and our views on diagnostic testing and disease management including supportive care, medical therapies, and other interventions.
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Affiliation(s)
- Kiersten W Ricci
- Department of Pediatrics, University of Cincinnati College of Medicine, Division of Hematology and Hemangioma and Vascular Malformation Center, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Ionela Iacobas
- Department of Pediatrics, Baylor College of Medicine, Vascular Anomalies Center at Texas Children's Cancer and Hematology Centers, Texas Children's Hospital, Houston, Texas, USA
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14
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Solorzano E, Alejo AL, Ball HC, Magoline J, Khalil Y, Kelly M, Safadi FF. Osteopathy in Complex Lymphatic Anomalies. Int J Mol Sci 2022; 23:ijms23158258. [PMID: 35897834 PMCID: PMC9332568 DOI: 10.3390/ijms23158258] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/07/2022] [Accepted: 07/16/2022] [Indexed: 11/16/2022] Open
Abstract
Complex Lymphatic Anomalies (CLA) are lymphatic malformations with idiopathic bone and soft tissue involvement. The extent of the abnormal lymphatic presentation and boney invasion varies between subtypes of CLA. The etiology of these diseases has proven to be extremely elusive due to their rarity and irregular progression. In this review, we compiled literature on each of the four primary CLA subtypes and discuss their clinical presentation, lymphatic invasion, osseous profile, and regulatory pathways associated with abnormal bone loss caused by the lymphatic invasion. We highlight key proliferation and differentiation pathways shared between lymphatics and bone and how these systems may interact with each other to stimulate lymphangiogenesis and cause bone loss.
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Affiliation(s)
- Ernesto Solorzano
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA; (E.S.); (A.L.A.); (H.C.B.); (J.M.); (Y.K.); (M.K.)
- Musculoskeletal Research Group, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA
| | - Andrew L. Alejo
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA; (E.S.); (A.L.A.); (H.C.B.); (J.M.); (Y.K.); (M.K.)
- Musculoskeletal Research Group, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA
| | - Hope C. Ball
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA; (E.S.); (A.L.A.); (H.C.B.); (J.M.); (Y.K.); (M.K.)
- Musculoskeletal Research Group, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA
| | - Joseph Magoline
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA; (E.S.); (A.L.A.); (H.C.B.); (J.M.); (Y.K.); (M.K.)
- Musculoskeletal Research Group, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA
| | - Yusuf Khalil
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA; (E.S.); (A.L.A.); (H.C.B.); (J.M.); (Y.K.); (M.K.)
- Musculoskeletal Research Group, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA
| | - Michael Kelly
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA; (E.S.); (A.L.A.); (H.C.B.); (J.M.); (Y.K.); (M.K.)
- Department of Pediatric Hematology Oncology and Blood, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Fayez F. Safadi
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA; (E.S.); (A.L.A.); (H.C.B.); (J.M.); (Y.K.); (M.K.)
- Musculoskeletal Research Group, Northeast Ohio Medical University (NEOMED), Rootstown, OH 44272, USA
- Rebecca D. Considine Research Institute, Akron Children’s Hospital, Akron, OH 44308, USA
- School of Biomedical Sciences, Kent State University, Kent, OH 44243, USA
- Correspondence: ; Tel.: +1-330-325-6619
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15
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Perez-Atayde AR, Debelenko L, Al-Ibraheemi A, Eng W, Ruiz-Gutierrez M, O'Hare M, Croteau SE, Trenor CC, Boyer D, Balkin DM, Barclay SF, Hsi Dickie B, Liang MG, Chaudry G, Alomari AI, Mulliken JB, Adams DM, Kurek KC, Fishman SJ, Kozakewich HPW. Kaposiform Lymphangiomatosis: Pathologic Aspects in 43 Patients. Am J Surg Pathol 2022; 46:963-976. [PMID: 35385405 DOI: 10.1097/pas.0000000000001898] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Kaposiform lymphangiomatosis is an uncommon generalized lymphatic anomaly with distinctive clinical, radiologic, histopathologic, and molecular findings. Herein, we document the pathology in 43 patients evaluated by the Boston Children's Hospital Vascular Anomalies Center from 1999 to 2020. The most frequent presentations were respiratory difficulty, hemostatic abnormalities, and a soft tissue mass. Imaging commonly revealed involvement of some combination of mediastinal, pulmonary, pleural, and pericardial compartments and most often included spleen and skeleton. Histopathology was characterized by dilated, redundant, and abnormally configured lymphatic channels typically accompanied by dispersed clusters of variably canalized, and often hemosiderotic, spindled lymphatic endothelial cells that were immunopositive for D2-40, PROX1, and CD31. An activating lesional NRAS variant was documented in 9 of 10 patients. The clinical course was typically aggressive, marked by hemorrhage, thrombocytopenia, diminished fibrinogen levels, and a mortality rate of 21%.
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Affiliation(s)
| | - Larisa Debelenko
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY
| | | | | | - Melisa Ruiz-Gutierrez
- Division of Hematology/Oncology, Boston Children's Hospital and Dana-Farber Cancer Institute
| | | | - Stacy E Croteau
- Dana-Farber/Boston Children's Hospital Cancer and Blood Disorders Center and Harvard Medical School, Boston, MA
| | - Cameron C Trenor
- Dana-Farber/Boston Children's Hospital Cancer and Blood Disorders Center and Harvard Medical School, Boston, MA
| | | | | | - Sarah F Barclay
- Departments of Pathology & Laboratory Medicine
- Medical Genetics, Alberta Children's Hospital Research Institute and Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | | | | | - Gulraiz Chaudry
- Division of Interventional Radiology, Boston Children's Hospital and Harvard Medical School
| | - Ahmad I Alomari
- Division of Interventional Radiology, Boston Children's Hospital and Harvard Medical School
| | | | - Denise M Adams
- Division of Oncology, Department of Pediatrics, Comprehensive Vascular Anomalies Program, Children's Hospital of Philadelphia, University of Pennsylvania Medical Center, Philadelphia, PA
| | - Kyle C Kurek
- Departments of Pathology & Laboratory Medicine
- Medical Genetics, Alberta Children's Hospital Research Institute and Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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16
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Shi P, Song C, Qi H, Ren J, Ren P, Wu J, Xie Y, Zhang M, Sun H, Cao Y. Up-regulation of IRF3 is required for docosahexaenoic acid suppressing ferroptosis of cardiac microvascular endothelial cells in cardiac hypertrophy rat. J Nutr Biochem 2022; 104:108972. [DOI: 10.1016/j.jnutbio.2022.108972] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 11/25/2021] [Accepted: 01/31/2022] [Indexed: 12/19/2022]
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17
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Huang L, Bichsel C, Norris A, Thorpe J, Pevsner J, Alexandrescu S, Pinto A, Zurakowski D, Kleiman RJ, Sahin M, Greene AK, Bischoff J. Endothelial GNAQ p.R183Q Increases ANGPT2 (Angiopoietin-2) and Drives Formation of Enlarged Blood Vessels. Arterioscler Thromb Vasc Biol 2022; 42:e27-e43. [PMID: 34670408 PMCID: PMC8702487 DOI: 10.1161/atvbaha.121.316651] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE Capillary malformation (CM) occurs sporadically and is associated with Sturge-Weber syndrome. The somatic mosaic mutation in GNAQ (c.548G>A, p.R183Q) is enriched in endothelial cells (ECs) in skin CM and Sturge-Weber syndrome brain CM. Our goal was to investigate how the mutant Gαq (G-protein αq subunit) alters EC signaling and disrupts capillary morphogenesis. Approach and Results: We used lentiviral constructs to express p.R183Q or wild-type GNAQ in normal human endothelial colony forming cells (EC-R183Q and EC-WT, respectively). EC-R183Q constitutively activated PLC (phospholipase C) β3, a downstream effector of Gαq. Activated PLCβ3 was also detected in human CM tissue sections. Bulk RNA sequencing analyses of mutant versus wild-type EC indicated constitutive activation of PKC (protein kinase C), NF-κB (nuclear factor kappa B) and calcineurin signaling in EC-R183Q. Increased expression of downstream targets in these pathways, ANGPT2 (angiopoietin-2) and DSCR (Down syndrome critical region protein) 1.4 were confirmed by quantitative PCR and immunostaining of human CM tissue sections. The Gαq inhibitor YM-254890 as well as siRNA targeted to PLCβ3 reduced mRNA expression levels of these targets in EC-R183Q while the pan-PKC inhibitor AEB071 reduced ANGPT2 but not DSCR1.4. EC-R183Q formed enlarged blood vessels in mice, reminiscent of those found in human CM. shRNA knockdown of ANGPT2 in EC-R183Q normalized the enlarged vessels to sizes comparable those formed by EC-WT. CONCLUSIONS Gαq-R183Q, when expressed in ECs, establishes constitutively active PLCβ3 signaling that leads to increased ANGPT2 and a proangiogenic, proinflammatory phenotype. EC-R183Q are sufficient to form enlarged CM-like vessels in mice, and suppression of ANGPT2 prevents the enlargement. Our study provides the first evidence that endothelial Gαq-R183Q is causative for CM and identifies ANGPT2 as a contributor to CM vascular phenotype.
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Affiliation(s)
- Lan Huang
- Vascular Biology Program, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
- Department of Surgery, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
| | - Colette Bichsel
- Vascular Biology Program, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
- Department of Surgery, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
| | - Alexis Norris
- Department of Neurology, Kennedy Krieger Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Jeremy Thorpe
- Department of Neurology, Kennedy Krieger Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Jonathan Pevsner
- Department of Neurology, Kennedy Krieger Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Sanda Alexandrescu
- Department of Pathology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
| | - Anna Pinto
- Department of Neurology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
| | - David Zurakowski
- Department of Anesthesiology, Critical Care and Pain Medicine Research, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
| | - Robin J. Kleiman
- Department of Neurology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
| | - Mustafa Sahin
- Department of Neurology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
| | - Arin K. Greene
- Department of Plastic and Oral Surgery, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
- Department of Vascular Anomalies Center, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
| | - Joyce Bischoff
- Vascular Biology Program, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
- Department of Surgery, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115
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18
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Abstract
Lymphatic vessels maintain tissue fluid homeostasis by returning to blood circulation interstitial fluid that has extravasated from the blood capillaries. They provide a trafficking route for cells of the immune system, thus critically contributing to immune surveillance. Developmental or functional defects in the lymphatic vessels, their obstruction or damage, lead to accumulation of fluid in tissues, resulting in lymphedema. Here we discuss developmental lymphatic anomalies called lymphatic malformations and complex lymphatic anomalies that manifest as localized or multifocal lesions of the lymphatic vasculature, respectively. They are rare diseases that are caused mostly by somatic mutations and can present with variable symptoms based upon the size and location of the lesions composed of fluid-filled cisterns or channels. Substantial progress has been made recently in understanding the molecular basis of their pathogenesis through the identification of their genetic causes, combined with the elucidation of the underlying mechanisms in animal disease models and patient-derived lymphatic endothelial cells. Most of the solitary somatic mutations that cause lymphatic malformations and complex lymphatic anomalies occur in genes that encode components of oncogenic growth factor signal transduction pathways. This has led to successful repurposing of some targeted cancer therapeutics to the treatment of lymphatic malformations and complex lymphatic anomalies. Apart from the mutations that act as lymphatic endothelial cell-autonomous drivers of these anomalies, current evidence points to superimposed paracrine mechanisms that critically contribute to disease pathogenesis and thus provide additional targets for therapeutic intervention. Here, we review these advances and discuss new treatment strategies that are based on the recently identified molecular pathways.
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Affiliation(s)
- Taija Mäkinen
- Department of Immunology, Genetics and Pathology, Uppsala University, Sweden (T.M.)
| | - Laurence M Boon
- Division of Plastic Surgery, Center for Vascular Anomalies, Cliniques Universitaires Saint Luc, UCLouvain, Brussels, Belgium (L.M.B.).,Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium (L.M.B., M.V.)
| | - Miikka Vikkula
- Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium (L.M.B., M.V.).,Walloon Excellence in Lifesciences and Biotechnology, University of Louvain, Brussels, Belgium (M.V.)
| | - Kari Alitalo
- Wihuri Research Institute and Translational Cancer Medicine Program, Biomedicum, University of Helsinki, Finland (K.A.)
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19
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Abstract
Lymphangioma is a common type of congenital vascular disease in children with a broad spectrum of clinical manifestations. The current classification of lymphangioma by International Society for the Study of Vascular Anomalies is largely based on the clinical manifestations and complications and is not sufficient for selection of therapeutic strategies and prognosis prediction. The clinical management and outcome of lymphangioma largely depend on the clinical classification and the location of the disease, ranging from spontaneous regression with no treatment to severe sequelae even with comprehensive treatment. Recently, rapid progression has been made toward elucidating the molecular pathology of lymphangioma and the development of treatments. Several signaling pathways have been revealed to be involved in the progression and development of lymphangioma, and specific inhibitors targeting these pathways have been investigated for clinical applications and clinical trials. Some drugs already currently in clinical use for other diseases were found to be effective for lymphangioma, although the mechanisms underlying the anti-tumor effects remain unclear. Molecular classification based on molecular pathology and investigation of the molecular mechanisms of current clinical drugs is the next step toward developing more effective individualized treatment of children with lymphangioma with reduced side effects.
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Affiliation(s)
- Xiaowei Liu
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China
| | - Cheng Cheng
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China
| | - Kai Chen
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China
| | - Yeming Wu
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China.,Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, China
| | - Zhixiang Wu
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China.,Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, China
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20
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Dellinger MT, McCormack FX. The emergence of targetable MEKanisms in sporadic lymphatic disorders. EMBO Mol Med 2020; 12:e12822. [PMID: 32945117 PMCID: PMC7539175 DOI: 10.15252/emmm.202012822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Sporadic lymphatic diseases are orphans among orphans in the medical community, a diverse collection of disorders at the intersection of cardiac, gastrointestinal, pulmonary, dermatologic, and oncologic disease that receives only passing attention in medical school and that no subspecialty in medicine fully embraces as its own. They often present in a confusing and illusive manner, with a fractured bone, expectoration of blood or a branching airway cast, a swollen limb or a collection of chylous material; protean manifestations that can challenge even the most expert diagnostician. Yet many of these acquired disorders have been discovered to have a targetable genetic basis, and as the case report of Foster et al (2020) demonstrates, the sedulous clinician–patient dyad can be rewarded with an almost miraculous result when the molecular pathogenesis of the disease is pursued and an exquisitely targeted therapy is administered.
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Affiliation(s)
- Michael T Dellinger
- Division of Surgical Oncology, Department of Surgery and the Hamon Center for Therapeutic Oncology Research, UT Southwestern Medical Center, Dallas, TX, USA
| | - Francis X McCormack
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Cincinnati Medical Center, Cincinnati, OH, USA
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21
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Crane J, Manfredo J, Boscolo E, Coyan M, Takemoto C, Itkin M, Adams DM, Le Cras TD. Kaposiform lymphangiomatosis treated with multimodal therapy improves coagulopathy and reduces blood angiopoietin-2 levels. Pediatr Blood Cancer 2020; 67:e28529. [PMID: 32634277 PMCID: PMC8554683 DOI: 10.1002/pbc.28529] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 01/20/2023]
Abstract
Kaposiform lymphangiomatosis (KLA) is a rare, life-threatening congenital lymphatic malformation. Diagnosis is often delayed due to complex indistinct symptoms. Blood angiopoietin-2 (ANG2) levels are elevated in KLA and may be useful as a biomarker to monitor disease status. We report a 7-year-old male child with easy bruising, inguinal swelling, and consumptive coagulopathy, diagnosed with KLA. A multimodal treatment regimen of prednisone, sirolimus, vincristine, and adjunctive zoledronate was used. Plasma ANG2 levels were highly elevated at diagnosis but decreased during treatment. The patient showed significant clinical improvement over a 38-month period and normalization of ANG2 levels correlated with resolution of the coagulopathy.
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Affiliation(s)
- Janet Crane
- Division of Endocrinology, Department of Pediatrics, Center for Musculoskeletal Research, Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland
| | - Jackie Manfredo
- Division of Endocrinology, Department of Pediatrics, Center for Musculoskeletal Research, Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland
| | - Elisa Boscolo
- Experimental Hematology Division, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Mara Coyan
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Clifford Takemoto
- Hematology Department, St. Jude Children’s Research Hospital, Memphis, Tennessee
| | - Maxim Itkin
- Center for Lymphatic Disorders, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania
| | - Denise M. Adams
- Division of Hematology/Oncology, Vascular Anomalies Center, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Timothy D. Le Cras
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
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22
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Cronan J, Gill AE, Shah JH, Hawkins CM. The Role of Interventional Radiologists in the Treatment of Congenital Lymphatic Malformations. Semin Intervent Radiol 2020; 37:285-294. [PMID: 32773954 DOI: 10.1055/s-0040-1713446] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Lymphatic malformations are low-flow vascular malformations that are typically apparent in the pediatric population and can cause significant functional limitations and effects on quality of life. While surgical resection has historically been the mainstay of therapy, percutaneous sclerotherapy has garnered increasing popularity due to its efficacy and low complication rates. The role of interventional radiology in the multidisciplinary management of these often complex malformations requires thorough understanding of the disease process. This article will review the pathophysiology, clinical presentation, imaging workup, and management options of lymphatic malformations. Special attention will be devoted to available sclerosants, the mammalian target of rapamycin inhibitor sirolimus, and complex lymphatic anomalies.
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Affiliation(s)
- Julie Cronan
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - Anne E Gill
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.,Division of Pediatric Radiology, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - Jay H Shah
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.,Division of Pediatric Radiology, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - C Matthew Hawkins
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.,Division of Pediatric Radiology, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
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23
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Geng C, Wei J, Wu C. Yap-Hippo pathway regulates cerebral hypoxia-reoxygenation injury in neuroblastoma N2a cells via inhibiting ROCK1/F-actin/mitochondrial fission pathways. Acta Neurol Belg 2020; 120:879-892. [PMID: 29796942 DOI: 10.1007/s13760-018-0944-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 05/15/2018] [Indexed: 01/03/2023]
Abstract
Yes-associated protein (Yap), a regulator of cellular apoptosis, has been demonstrated to be involved in cerebral ischemia-reperfusion (IR) injury through poorly defined mechanisms. The present study aimed to explore the role of Yap in regulating cerebral IR injury in vitro, with a focus on mitochondrial fission and ROCK1/F-actin pathways. Our data demonstrated that Yap was actually downregulated in N2a cells after cerebral hypoxia-reoxygenation (HR) injury, and that lower expression of Yap was closely associated with increased cell death. However, the reintroduction of Yap was able to suppress the HR-mediated N2a cells death via blocking the mitochondria-related apoptotic signal. At the molecular levels, Yap overexpression sustained mitochondrial potential, normalized the mitochondrial respiratory function, reduced ROS overproduction, limited HtrA2/Omi release from mitochondria into the nucleus, and suppressed pro-apoptotic proteins activation. Subsequently, functional studies have further illustrated that HR-mediated mitochondrial apoptosis was highly regulated by mitochondrial fission, whereas Yap overexpression was able to attenuate HR-mediated mitochondrial fission and, thus, promote N2a cell survival in the context of HR injury. At last, we demonstrated that Yap handled mitochondrial fission via closing ROCK1/F-actin signaling pathways. Activation of ROCK1/F-actin pathways abrogated the protective role of Yap overexpression on mitochondrial homeostasis and N2a cell survival in the setting of HR injury. Altogether, our data identified Yap as the endogenous defender to relieve HR-mediated nerve damage via antagonizing ROCK1/F-actin/mitochondrial fission pathways.
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Affiliation(s)
- Chizi Geng
- Physician of Neurology Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
| | - Jianchao Wei
- Director of Neurology Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Chengsi Wu
- Deputy Director of Eurology Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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24
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Le Cras TD, Adams DM. Comment on: Potential biomarkers of kaposiform lymphangiomatosis. Pediatr Blood Cancer 2020; 67:e28100. [PMID: 31872523 DOI: 10.1002/pbc.28100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 09/23/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Timothy D Le Cras
- Division of Pulmonary Biology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Denise M Adams
- Division of Hematology/Oncology, Vascular Anomalies Center, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
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25
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Ozeki M, Fukao T. Reply to: Comment on: Potential biomarkers of kaposiform lymphangiomatosis. Pediatr Blood Cancer 2020; 67:e28156. [PMID: 31930675 DOI: 10.1002/pbc.28156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 12/17/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Michio Ozeki
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, 501-1194, Japan
| | - Toshiyuki Fukao
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, 501-1194, Japan
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26
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Ji Y, Chen S, Yang K, Xia C, Li L. Kaposiform hemangioendothelioma: current knowledge and future perspectives. Orphanet J Rare Dis 2020; 15:39. [PMID: 32014025 PMCID: PMC6998257 DOI: 10.1186/s13023-020-1320-1] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/28/2020] [Indexed: 02/06/2023] Open
Abstract
Kaposiform hemangioendothelioma (KHE) is a rare vascular neoplasm with high morbidity and mortality. The initiating mechanism during the pathogenesis of KHE has yet to be discovered. The main pathological features of KHE are abnormal angiogenesis and lymphangiogenesis. KHEs are clinically heterogeneous and may develop into a life-threatening thrombocytopenia and consumptive coagulopathy, known as the Kasabach-Merritt phenomenon (KMP). The heterogeneity and the highly frequent occurrence of disease-related comorbidities make the management of KHE challenging. Currently, there are no medications approved by the FDA for the treatment of KHE. Multiple treatment regimens have been used with varying success, and new clinical trials are in progress. In severe patients, multiple agents with variable adjuvant therapies are given in sequence or in combination. Recent studies have demonstrated a satisfactory efficacy of sirolimus, an inhibitor of mammalian target of rapamycin, in the treatment of KHE. Novel targeted treatments based on a better understanding of the pathogenesis of KHE are needed to maximize patient outcomes and quality of life. This review summarizes the epidemiology, etiology, pathophysiology, clinical features, diagnosis and treatments of KHE. Recent new concepts and future perspectives for KHE will also be discussed.
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Affiliation(s)
- Yi Ji
- Division of Oncology, Department of Pediatric Surgery, West China Hospital of Sichuan University, Chengdu, 610041, China.
| | - Siyuan Chen
- Pediatric Intensive Care Unit, Department of Critical Care Medicine, West China Hospital of Sichuan University, #37 Guo-Xue-Xiang, Chengdu, 610041, China.
| | - Kaiying Yang
- Division of Oncology, Department of Pediatric Surgery, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Chunchao Xia
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Li Li
- Laboratory of Pathology, West China Hospital of Sichuan University, Chengdu, 610041, China
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27
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Tan BL, Norhaizan ME. Effect of High-Fat Diets on Oxidative Stress, Cellular Inflammatory Response and Cognitive Function. Nutrients 2019; 11:nu11112579. [PMID: 31731503 PMCID: PMC6893649 DOI: 10.3390/nu11112579] [Citation(s) in RCA: 196] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/16/2019] [Accepted: 10/21/2019] [Indexed: 12/20/2022] Open
Abstract
Cognitive dysfunction is linked to chronic low-grade inflammatory stress that contributes to cell-mediated immunity in creating an oxidative environment. Food is a vitally important energy source; it affects brain function and provides direct energy. Several studies have indicated that high-fat consumption causes overproduction of circulating free fatty acids and systemic inflammation. Immune cells, free fatty acids, and circulating cytokines reach the hypothalamus and initiate local inflammation through processes such as microglial proliferation. Therefore, the role of high-fat diet (HFD) in promoting oxidative stress and neurodegeneration is worthy of further discussion. Of particular interest in this article, we highlight the associations and molecular mechanisms of HFD in the modulation of inflammation and cognitive deficits. Taken together, a better understanding of the role of oxidative stress in cognitive impairment following HFD consumption would provide a useful approach for the prevention of cognitive dysfunction.
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Affiliation(s)
- Bee Ling Tan
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Mohd Esa Norhaizan
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Research Centre of Excellent, Nutrition and Non-Communicable Diseases (NNCD), Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Correspondence: ; Tel.: +603-8947-2427
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Bai J, Wang Q, Qi J, Yu H, Wang C, Wang X, Ren Y, Yang F. Promoting effect of baicalin on nitric oxide production in CMECs via activating the PI3K-AKT-eNOS pathway attenuates myocardial ischemia-reperfusion injury. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 63:153035. [PMID: 31377586 DOI: 10.1016/j.phymed.2019.153035] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 07/08/2019] [Accepted: 07/19/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE Baicalin, which is isolated from Scutellariae Radix, has been shown to possess therapeutic potential for different diseases. Cardiac microvessel injury in myocardial ischemia-reperfusion (IR) has been extensively explored. However, there have been no studies investigating the physiological regulatory mechanisms of baicalin on nitric oxide production and the necroptosis of cardiac microvascular endothelial cells (CMECs) in myocardial IR injury. This study was designed to investigate the contribution of baicalin to repressing necroptosis and preventing IR-mediated CMEC dysfunction. MATERIALS AND METHODS Indicators of ventricular structure and function were measured by an echocardiographic system. An MTT assay was performed to assess cell viability. Nitrite detection was performed to detect nitric oxide content, and cGMP content was determined using a commercially available cGMP complete ELISA kit. Morphology and molecular characteristics were detected by electron micrographs, quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting. RESULT Our results demonstrated that baicalin significantly improved cardiac function, decreased the myocardial infarction area, and inhibited myocardial cell apoptosis. Moreover, baicalin had a protective effect on cardiac microvessels and promoted the production of nitric oxide (NO) and the level of cGMP in rats that underwent myocardial IR injury. The results of the in vitro experiments showed that baicalin markedly improved cell activity and function in CMECs exposed to hypoxia-reoxygenation (HR). Further experiments indicated that baicalin supplementation suppressed the protein expression of RIP1, RIP3 and p-MLKL to interrupt CMEC necroptosis. In addition, baicalin promoted the production of NO via activating the PI3K-AKT-eNOS signaling pathway. Taken together, our results identified the PI3K-AKT-eNOS axis as a new pathway responsible for reperfusion-mediated microvascular damage. CONCLUSION Baicalin protected CMECs in IR rats by promoting the release of NO via the PI3K-AKT-eNOS pathway and mitigated necroptosis by inhibiting the protein expression of RIP1, RIP3 and p-MLKL.
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Affiliation(s)
- Jiannan Bai
- Department of Cardiology, Daqing People's Hospital, 213 Jianshe Road, Daqing, Heilongjiang 163319, China
| | - Qingchao Wang
- Department of Cardiology, Daqing People's Hospital, 213 Jianshe Road, Daqing, Heilongjiang 163319, China
| | - Jiaxin Qi
- Department of Cardiology, Daqing People's Hospital, 213 Jianshe Road, Daqing, Heilongjiang 163319, China
| | - Hongqiang Yu
- Department of Cardiology, Daqing People's Hospital, 213 Jianshe Road, Daqing, Heilongjiang 163319, China
| | - Cong Wang
- Department of Cardiology, Daqing People's Hospital, 213 Jianshe Road, Daqing, Heilongjiang 163319, China
| | - Xiaowei Wang
- Department of Cardiology, Daqing People's Hospital, 213 Jianshe Road, Daqing, Heilongjiang 163319, China
| | - Yanru Ren
- Department of Anesthesiology, Daqing People's Hospital, Daqing, Heilongjiang 163319, China.
| | - Fude Yang
- Department of Cardiology, Daqing People's Hospital, 213 Jianshe Road, Daqing, Heilongjiang 163319, China.
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Ozeki M, Aoki Y, Nozawa A, Yasue S, Endo S, Hori Y, Matsuoka K, Niihori T, Funayama R, Shirota M, Nakayama K, Fukao T. Detection of NRAS mutation in cell-free DNA biological fluids from patients with kaposiform lymphangiomatosis. Orphanet J Rare Dis 2019; 14:215. [PMID: 31511039 PMCID: PMC6737666 DOI: 10.1186/s13023-019-1191-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 09/04/2019] [Indexed: 12/15/2022] Open
Abstract
Background Kaposiform lymphangiomatosis (KLA) has recently been distinguished as a novel subtype of generalized lymphatic anomaly (GLA) with foci of spindle endothelial cells. All cases of KLA involve multiple organs and have an unfavorable prognosis. However, the molecular pathogenesis is unknown, and there are no useful biomarkers. In the present study, we performed genetic analysis to elucidate the cause of this disease and detect biomarkers for it. Methods We performed whole-exome sequencing of DNA samples from leukocytes and a biopsy specimen and analyzed cell-free DNA (cfDNA) from plasma and pleural effusion of patients to identify the NRAS c.182A > G (p.Q61R) mutation using the droplet digital polymerase chain reaction (ddPCR). Results All KLA patients (patients 1–5) had invasive and aggressive features (hemorrhagic pleural effusions, coagulation disorder, and thrombocytopenia) and characteristic findings of KLA in their pathological examinations. In whole exome sequencing for patient 1, c.182A > G missense variant (p.Q61R) in NRAS was identified in fresh frozen samples of a mass on the left chest wall at a frequency of 5% of total alleles but not in his blood leukocytes. Furthermore, the same mutation was detected in cfDNA isolated from plasma and pleural effusion by using ddPCR. ddPCR analysis of plasma/pleural effusion samples from an additional four KLA patients showed that the same mutation was detected in isolated cfDNA in three of the four, as well as in a tissue sample from one of the three plasma/effusion-positive patients that had been obtained to confirm the mutation. Conclusion These results provide the first evidence that NRAS oncogenic variant was identified in DNA samples from KLA patients from not only two affected lesions but also plasma and pleural effusion.
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Affiliation(s)
- Michio Ozeki
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Yanagido 1-1, Gifu, 501-1194, Japan.
| | - Yoko Aoki
- Department of Medical Genetics, Tohoku University School of Medicine, Sendai, 980-8574, Japan.
| | - Akifumi Nozawa
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Yanagido 1-1, Gifu, 501-1194, Japan
| | - Shiho Yasue
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Yanagido 1-1, Gifu, 501-1194, Japan
| | - Saori Endo
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Yanagido 1-1, Gifu, 501-1194, Japan
| | - Yumiko Hori
- Department of Pathology, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan
| | - Kentaro Matsuoka
- Department of Pathology, Dokkyo Medical University Saitama Medical Center, Saitama, 343-8555, Japan
| | - Tetsuya Niihori
- Department of Medical Genetics, Tohoku University School of Medicine, Sendai, 980-8574, Japan
| | - Ryo Funayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Matsuyuki Shirota
- Division of Interdisciplinary Medical Science, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Keiko Nakayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Toshiyuki Fukao
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Yanagido 1-1, Gifu, 501-1194, Japan
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Potential biomarkers of kaposiform lymphangiomatosis. Pediatr Blood Cancer 2019; 66:e27878. [DOI: 10.1002/pbc.27878] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/18/2019] [Accepted: 05/20/2019] [Indexed: 01/05/2023]
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Ozeki M, Fukao T. Generalized Lymphatic Anomaly and Gorham-Stout Disease: Overview and Recent Insights. Adv Wound Care (New Rochelle) 2019; 8:230-245. [PMID: 31236308 PMCID: PMC6589502 DOI: 10.1089/wound.2018.0850] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 11/02/2018] [Indexed: 02/06/2023] Open
Abstract
Significance: Generalized lymphatic anomaly and Gorham-Stout disease are extremely rare diseases with severe symptoms and poor prognosis. The etiology and clinical presentation of the patients remain poorly defined, but recent research has attempted to determine the pathogenesis of these diseases. Recent Advances: In recent years, the characteristics of complex lymphatic anomalies have been revealed. Kaposiform lymphangiomatosis is recognized as a new entity that has an aggressive course and poor prognosis. Genetic analysis revealed somatic mutations in genes associated with the phosphoinositide 3-kinase (PI3K) pathway in lymphatic malformation lesions. Somatic NRAS mutation in lymphatic endothelium from a generalized lymphatic anomaly patient was also detected as a potential cause of disease. Furthermore, studies demonstrated the efficacy of the mammalian target of rapamycin (mTOR) inhibitor sirolimus for these lymphatic diseases. Critical Issues: These diseases have overlapping symptoms, imaging features, and complications, leading to difficulty in their differential diagnosis. In addition, there are no standard therapies. Therefore, we need to determine the differences among these diseases to not only diagnose but also treat them appropriately. Future Directions: Further investigations should reveal differences in the clinical features and findings of radiological, pathological, and genetic examinations to manage each disease appropriately. Somatic mutation in genes encoding RAS/PI3K/mTOR signaling pathway components could be associated with the pathogenesis of these diseases and may be novel targets for drug therapies.
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Affiliation(s)
- Michio Ozeki
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Toshiyuki Fukao
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
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Liu H, Huang H, Li R, Bi W, Feng L, E L, Hu M, Wen W. Mitophagy protects SH-SY5Y neuroblastoma cells against the TNFα-induced inflammatory injury: Involvement of microRNA-145 and Bnip3. Biomed Pharmacother 2019; 109:957-968. [DOI: 10.1016/j.biopha.2018.10.123] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 10/16/2018] [Accepted: 10/20/2018] [Indexed: 01/19/2023] Open
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Zhang W, Liu K, Pei Y, Ma J, Tan J, Zhao J. Mst1 regulates non-small cell lung cancer A549 cell apoptosis by inducing mitochondrial damage via ROCK1/F‑actin pathways. Int J Oncol 2018; 53:2409-2422. [PMID: 30320378 PMCID: PMC6203146 DOI: 10.3892/ijo.2018.4586] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/14/2018] [Indexed: 02/06/2023] Open
Abstract
Mammalian STE20-like kinase 1 (Mst1) is well recognized as a major tumor suppressor in cancer development, growth, metabolic reprogramming, metastasis, cell death and recurrence. However, the roles of Mst1 in non-small cell lung cancer (NSCLC) A549 cell phenotypic alterations remain to be elucidated. The present study aimed to explore the functional role and underlying mechanisms of Mst1 with regards to A549 cell proliferation, migration and apoptosis; this study focused on mitochondrial homeostasis and Rho-associated coiled-coil containing protein kinase 1 (ROCK1)/F‑actin pathways. The results demonstrated that Mst1 was downregulated in A549 cells compared with in a normal pulmonary epithelial cell line. Subsequently, overexpression of Mst1 in A549 cells reduced cell viability and promoted cell apoptosis. Furthermore, overexpression of Mst1 suppressed A549 cell proliferation and migration. At the molecular level, the reintroduction of Mst1 in A549 cells led to activation of mitochondrial apoptosis, as evidenced by a reduction in mitochondrial potential, overproduction of ROS, cytochrome c release from the mitochondria into the nucleus, and upregulation of pro-apoptotic protein expression. In addition, Mst1 overexpression was closely associated with impaired mitochondrial respiratory function and suppressed cellular energy metabolism. Functional studies illustrated that Mst1 overexpression activated ROCK1/F-actin pathways, which highly regulate mitochondrial function. Inhibition of ROCK1/F-actin pathways in A549 cells sustained mitochondrial homeostasis, alleviated caspase-9-dependent mitochondrial apoptosis, enhanced cancer cell migration and increased cell proliferation. In conclusion, these data firmly established the regulatory role of Mst1 in NSCLC A549 cell survival via the modulation of ROCK1/F-actin pathways, which may provide opportunities for novel treatment modalities in clinical practice.
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Affiliation(s)
- Weiqiang Zhang
- Department of Thoracic Surgery, Army General Hospital of PLA, Beijing 100700, P. R. China
| | - Keiqiang Liu
- Department of Thoracic Surgery, Army General Hospital of PLA, Beijing 100700, P. R. China
| | - Yingxin Pei
- Department of Thoracic Surgery, Army General Hospital of PLA, Beijing 100700, P. R. China
| | - Jingbo Ma
- Department of Thoracic Surgery, Army General Hospital of PLA, Beijing 100700, P. R. China
| | - Jiang Tan
- Department of Thoracic Surgery, Army General Hospital of PLA, Beijing 100700, P. R. China
| | - Jing Zhao
- Department of Thoracic Surgery, Army General Hospital of PLA, Beijing 100700, P. R. China
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Li J, Li N, Yan S, Lu Y, Miao X, Gu Z, Shao Y. Melatonin attenuates renal fibrosis in diabetic mice by activating the AMPK/PGC1α signaling pathway and rescuing mitochondrial function. Mol Med Rep 2018; 19:1318-1330. [PMID: 30535482 DOI: 10.3892/mmr.2018.9708] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 08/30/2018] [Indexed: 11/06/2022] Open
Abstract
Mitochondrial homeostasis is a highly regulated process that serves a critical role in the maintenance of renal structure and function. The growing interest in the field of mitochondrial homeostasis promises to provide more information regarding the mechanisms involved in diabetic renal fibrosis, and aid in the development of novel strategies to combat the disease. In the present study, the effects of melatonin on renal damage in mice with diabetes were evaluated and the underlying mechanisms were investigated. Cellular apoptosis was determined using TUNEL assay and western blotting. Mitochondrial function was measured using fluorescence assay and western blotting. The results indicated that diabetic renal fibrosis was associated with 5'adenosine monophosphate‑activated protein kinase (AMPK) downregulation. However, melatonin administration rescued AMPK activity, reduced diabetic renal fibrosis, alleviated glomerular apoptosis and preserved kidney function. The functional experiments demonstrated that melatonin‑induced AMPK activation enhanced peroxisome proliferator‑activated receptor γ coactivator 1‑α (PGC1α) expression, sustained mitochondrial function and blocked mitochondrial apoptosis, leading to protection of the glomerulus against glucotoxicity. However, loss of AMPK and PGC1α negated the protective effects of melatonin on mitochondrial homeostasis, glomerular survival and diabetic renal fibrosis. In summary, the present study revealed that melatonin rescued impaired mitochondrial function and reduced glomerular apoptosis in the context of diabetic renal fibrosis by activating the AMPK/PGC1α pathway.
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Affiliation(s)
- Jian Li
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, National Clinical Center of Geriatric Medicine, Beijing 100853, P.R. China
| | - Nan Li
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, National Clinical Center of Geriatric Medicine, Beijing 100853, P.R. China
| | - Shuangtong Yan
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, National Clinical Center of Geriatric Medicine, Beijing 100853, P.R. China
| | - Yanhui Lu
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, National Clinical Center of Geriatric Medicine, Beijing 100853, P.R. China
| | - Xinyu Miao
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, National Clinical Center of Geriatric Medicine, Beijing 100853, P.R. China
| | - Zhaoyan Gu
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, National Clinical Center of Geriatric Medicine, Beijing 100853, P.R. China
| | - Yinghong Shao
- Outpatient Department, Chinese PLA General Hospital, Beijing 100853, P.R. China
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Yao S, Yan W. Overexpression of Mst1 reduces gastric cancer cell viability by repressing the AMPK-Sirt3 pathway and activating mitochondrial fission. Onco Targets Ther 2018; 11:8465-8479. [PMID: 30555239 PMCID: PMC6278716 DOI: 10.2147/ott.s180851] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Mammalian sterile 20-like kinase 1 (Mst1) plays a critical role in regulating cell survival and apoptosis. However, its influence on gastric cancer cell viability is not understood. Our study aims to explore the specific role of Mst1 in gastric cancer. MATERIALS AND METHODS Cellular viability was measured via TUNEL staining, MTT assays, and Western blotting. Immunofluorescence was performed to observe mitochondrial fission. Mst1 overexpression assays were conducted to observe the regulatory mechanisms of Mst1 in mitochondrial fission and cell apoptosis. RESULTS The results demonstrated that Mst1 was downregulated in AGS cells when compared with GES-1 cells. However, overexpression of Mst1 reduced cell viability and increased apoptosis in AGS cells. Molecular experiments showed that Mst1 overexpression mediated mitochondrial damage, as evidenced by decreased ATP production, increased ROS generation, more cyt-c translocation from the mitochondria into the cytoplasm and nucleus, and activated the caspase-9-related apoptotic pathway. Furthermore, we found that mitochondrial fission was required for Mst1-induced mitochondrial dysfunction; inhibition of mitochondrial fission sustained mitochondrial homeostasis in response to Mst1 overexpression. In addition, our data revealed that Mst1 controlled mitochondrial fission via repressing the AMPK-Sirt3 pathway. Activation of the AMPK-Sirt3 pathway negated the promoting effect of Mst1 overexpression on mitochondrial fission. CONCLUSION Altogether, our data identified Mst1 as a novel tumor-suppressive factor in promoting cell death in gastric cancer cells by triggering mitochondrial fission and blocking the AMPK-Sirt3 axis.
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Affiliation(s)
- Shiwei Yao
- Department of Gastroenterology, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing, China,
| | - Wei Yan
- Department of Gastroenterology, The First Hospital of Tsinghua University, Beijing, China
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Wei R, Cao J, Yao S. Matrine promotes liver cancer cell apoptosis by inhibiting mitophagy and PINK1/Parkin pathways. Cell Stress Chaperones 2018; 23:1295-1309. [PMID: 30209783 PMCID: PMC6237690 DOI: 10.1007/s12192-018-0937-7] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 08/23/2018] [Accepted: 09/02/2018] [Indexed: 02/05/2023] Open
Abstract
Matrine is a natural alkaloid isolated from the root and stem of the legume plant Sophora. Its anti-proliferative and pro-apoptotic effects on several types of cancer have been well-documented. However, the role of matrine in regulating mitochondrial homeostasis, particularly mitophagy in liver cancer apoptosis, remains uncertain. The aim of our study was to explore whether matrine promotes liver cancer cell apoptosis by modifying mitophagy. HepG2 cells were used in the study and treated with different doses of matrine. Cell viability and apoptosis were determined by MTT assay, TUNEL staining, western blotting, and LDH release assay. Mitophagy was monitored by immunofluorescence assay and western blotting. Mitochondrial function was assessed by immunofluorescence assay, ELISA, and western blotting. The results of our study indicated that matrine treatment dose-dependently reduced cell viability and increased the apoptotic rate of HepG2 cells. Functional studies demonstrated that matrine treatment induced mitochondrial dysfunction and activated mitochondrial apoptosis by inhibiting protective mitophagy. Re-activation of mitophagy abolished the pro-apoptotic effects of matrine on HepG2 cells. Molecular investigations further confirmed that matrine regulated mitophagy via the PINK1/Parkin pathways. Matrine blocked the PINK1/Parkin pathways and repressed mitophagy, whereas activation of the PINK1/Parkin pathways increased mitophagy activity and promoted HepG2 cell survival in the presence of matrine. Together, our data indicated that matrine promoted HepG2 cell apoptosis through a novel mechanism that acted via inhibiting mitophagy and the PINK1/Parkin pathways. This finding provides new insight into the molecular mechanism of matrine for treating liver cancer and offers a potential target to repress liver cancer progression by modulating mitophagy and the PINK1/Parkin pathways.
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Affiliation(s)
- Runjie Wei
- Peking University China-Japan Friendship School of Clinical Medicine, No. 2 Yinghua East Road, Chaoyang District, 100029, Beijing, China
| | - Jian Cao
- School of Biological Science and Medical Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, 100191, Beijing, China
| | - Shukun Yao
- Peking University China-Japan Friendship School of Clinical Medicine, No. 2 Yinghua East Road, Chaoyang District, 100029, Beijing, China.
- Department of Gastroenterology, China-Japan Friendship Hospital, No. 2 Yinghua East Road, Chaoyang District, 100029, Beijing, China.
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Li H, Feng J, Zhang Y, Feng J, Wang Q, Zhao S, Meng P, Li J. Mst1 deletion attenuates renal ischaemia-reperfusion injury: The role of microtubule cytoskeleton dynamics, mitochondrial fission and the GSK3β-p53 signalling pathway. Redox Biol 2018; 20:261-274. [PMID: 30384260 PMCID: PMC6205415 DOI: 10.1016/j.redox.2018.10.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 10/15/2018] [Indexed: 11/17/2022] Open
Abstract
Despite extensive research that has been carried out over the past three decades in the field of renal ischaemia-reperfusion (I/R) injury, the pathogenic role of mitochondrial fission in renal I/R injury is poorly understood. The aim of our study is to investigate the molecular mechanism by which mammalian STE20-like kinase 1 (Mst1) participates in renal I/R injury through modifying mitochondrial fission, microtubule cytoskeleton dynamics, and the GSK3β-p53 signalling pathway. Our data demonstrated that genetic ablation of Mst1 improved renal function, alleviated reperfusion-mediated tubular epithelial cell apoptosis, and attenuated the vulnerability of kidney to I/R injury. At the molecular level, Mst1 upregulation exacerbated mitochondrial damage, as evidenced by reduced mitochondrial potential, increased ROS generation, more cyt-c liberation from mitochondria into the cytoplasm, and an activated mitochondrial apoptotic pathway. Furthermore, we demonstrated that I/R-mediated mitochondrial damage resulted from mitochondrial fission, and the blockade of mitochondrial fission preserved mitochondrial homeostasis in the I/R setting. Functional studies have discovered that Mst1 regulated mitochondrial fission through two mechanisms: induction of Drp1 phosphorylation and enhancement of F-actin assembly. Activated Mst1 promoted Drp1 phosphorylation at Ser616, contributing to Drp1 translocation from the cytoplasm to the surface of the mitochondria. Additionally, Mst1 facilitated F-actin polymerization, contributing to mitochondrial contraction. Finally, we confirmed that Mst1 regulated Drp1 post-transcriptional modification and F-actin stabilization via the GSK3β-p53 signalling pathway. Inhibition of GSK3β-p53 signalling provided a survival advantage for the tubular epithelial cell in the context of renal I/R injury by repressing mitochondrial fission. Collectively, our study identified Mst1 as the primary pathogenesis for the development and progression of renal I/R injury via activation of fatal mitochondrial fission by modulating Drp1 phosphorylation, microtubule cytoskeleton dynamics, and the GSK3β-p53 signalling pathway. Mst1 deletion sustains renal function after I/R injury. Excessive mitochondrial fission accounts for Mst1-mediated mitochondrial apoptosis. Mst1 enhances reperfusion-mediated mitochondrial fission via Drp1 phosphorylation and F-actin polymerization. Mst1 regulates Drp1 phosphorylation and F-actin polymerization by activating the GSK3β-p53 axis.
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Affiliation(s)
- Hongyan Li
- Department of Nephrology, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou 510800, China.
| | - Jianxun Feng
- Department of Nephorology, Xuhui DIstrict Centeral Hospital of Shanghai, Shanghai 20031, China
| | - Yunfang Zhang
- Department of Nephrology, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou 510800, China
| | - Junxia Feng
- Department of Nephrology, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou 510800, China
| | - Qi Wang
- Department of Nephrology, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou 510800, China
| | - Shili Zhao
- Department of Nephrology, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou 510800, China
| | - Ping Meng
- Department of Nephrology, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou 510800, China
| | - Jingchun Li
- Department of Nephrology, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou 510800, China
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Zhou H, Li D, Zhu P, Ma Q, Toan S, Wang J, Hu S, Chen Y, Zhang Y. Inhibitory effect of melatonin on necroptosis via repressing the Ripk3-PGAM5-CypD-mPTP pathway attenuates cardiac microvascular ischemia-reperfusion injury. J Pineal Res 2018; 65:e12503. [PMID: 29770487 DOI: 10.1111/jpi.12503] [Citation(s) in RCA: 176] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 04/24/2018] [Indexed: 12/14/2022]
Abstract
The molecular features of necroptosis in cardiac ischemia-reperfusion (IR) injury have been extensively explored. However, there have been no studies investigating the physiological regulatory mechanisms of melatonin acting on necroptosis in cardiac IR injury. This study was designed to determine the role of necroptosis in microvascular IR injury, and investigate the contribution of melatonin in repressing necroptosis and preventing IR-mediated endothelial system collapse. Our results demonstrated that Ripk3 was primarily activated by IR injury and consequently aggravated endothelial necroptosis, microvessel barrier dysfunction, capillary hyperpermeability, the inflammation response, microcirculatory vasospasms, and microvascular perfusion defects. However, administration of melatonin prevented Ripk3 activation and provided a pro-survival advantage for the endothelial system in the context of cardiac IR injury, similar to the results obtained via genetic ablation of Ripk3. Functional investigations clearly illustrated that activated Ripk3 upregulated PGAM5 expression, and the latter increased CypD phosphorylation, which obligated endothelial cells to undergo necroptosis via augmenting mPTP (mitochondrial permeability transition pore) opening. Interestingly, melatonin supplementation suppressed mPTP opening and interrupted endothelial necroptosis via blocking the Ripk3-PGAM5-CypD signal pathways. Taken together, our studies identified the Ripk3-PGAM5-CypD-mPTP axis as a new pathway responsible for reperfusion-mediated microvascular damage via initiating endothelial necroptosis. In contrast, melatonin treatment inhibited the Ripk3-PGAM5-CypD-mPTP cascade and thus reduced cellular necroptosis, conferring a protective advantage to the endothelial system in IR stress. These findings establish a new paradigm in microvascular IR injury and update the concept for cell death management handled by melatonin under the burden of reperfusion attack.
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Affiliation(s)
- Hao Zhou
- Department of Cardiology, Chinese PLA General Hospital, Beijing, China
| | - Dandan Li
- Department of Cardiology, Chinese PLA General Hospital, Beijing, China
| | - Pingjun Zhu
- Department of Cardiology, Chinese PLA General Hospital, Beijing, China
| | - Qiang Ma
- Department of Cardiology, Chinese PLA General Hospital, Beijing, China
| | - Sam Toan
- Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, California
| | - Jin Wang
- Department of Cardiology, Chinese PLA General Hospital, Beijing, China
| | - Shunying Hu
- Department of Cardiology, Chinese PLA General Hospital, Beijing, China
| | - Yundai Chen
- Department of Cardiology, Chinese PLA General Hospital, Beijing, China
| | - Yingmei Zhang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
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Sheng J, Li H, Dai Q, Lu C, Xu M, Zhang J, Feng J. DUSP1 recuses diabetic nephropathy via repressing JNK‐Mff‐mitochondrial fission pathways. J Cell Physiol 2018; 234:3043-3057. [PMID: 30191967 DOI: 10.1002/jcp.27124] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/05/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Junqin Sheng
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Hongyan Li
- Department of NephrologyHuadu District People’s Hospital, Southern Medical UniversityGuangzhou China
| | - Qin Dai
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Chang Lu
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Min Xu
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Jisheng Zhang
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
| | - Jianxun Feng
- Department of NephrologyXuhui District Central Hospital of ShanghaiShanghai China
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Zhao H, Luo Y, Chen L, Zhang Z, Shen C, Li Y, Xu R. Sirt3 inhibits cerebral ischemia-reperfusion injury through normalizing Wnt/β-catenin pathway and blocking mitochondrial fission. Cell Stress Chaperones 2018; 23:1079-1092. [PMID: 29862442 PMCID: PMC6111081 DOI: 10.1007/s12192-018-0917-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 05/15/2018] [Accepted: 05/19/2018] [Indexed: 12/19/2022] Open
Abstract
Cerebral ischemia-reperfusion injury (IRI) potentiates existing brain damage and increases mortality and morbidity via poorly understood mechanisms. The aim of our study is to investigate the role of Sirtuin 3 (Sirt3) in the development and progression of cerebral ischemia-reperfusion injury with a focus on mitochondrial fission and the Wnt/β-catenin pathway. Our data indicated that Sirt3 was downregulated in response to cerebral IRI. However, the overexpression of Sirt3 reduced the brain infarction area and repressed IRI-mediated neuron apoptosis. Functional assays demonstrated that IRI augmented mitochondrial fission, which induced ROS overproduction, redox imbalance, mitochondrial pro-apoptotic protein leakage, and caspase-9-dependent cell death pathway activation. However, the overexpression of Sirt3 blocked mitochondrial fission and induced pro-survival signals in neurons subjected to IRI. At the molecular level, our data further illustrated that the Wnt/β-catenin pathway is required for the neuroprotection exerted by Sirt3 overexpression. Wnt/β-catenin pathway activation via inhibiting β-catenin phosphorylation attenuates mitochondrial fission and mitochondrial apoptosis. Collectively, our data show that cerebral IRI is associated with Sirt3 downregulation, Wnt/β-catenin pathway phosphorylated inactivation, and mitochondrial fission initiation, causing neurons to undergo caspase-9-dependent cell death. Based on this, strategies for enhancing Sirt3 activity and activating the Wnt/β-catenin pathway could be therapeutic targets for treating cerebral ischemia-reperfusion injury.
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Affiliation(s)
- Hao Zhao
- Department of Neurosurgery, PLA Army General Hospital, No.5 Nanmencang Hutong, Dongcheng District, Beijing, 100730, China
| | - Yongchun Luo
- Department of Neurosurgery, PLA Army General Hospital, No.5 Nanmencang Hutong, Dongcheng District, Beijing, 100730, China
| | - Lihua Chen
- Department of Neurosurgery, PLA Army General Hospital, No.5 Nanmencang Hutong, Dongcheng District, Beijing, 100730, China
| | - Zhenhai Zhang
- Department of Neurosurgery, PLA Army General Hospital, No.5 Nanmencang Hutong, Dongcheng District, Beijing, 100730, China
| | - Chunsen Shen
- Department of Neurosurgery, PLA Army General Hospital, No.5 Nanmencang Hutong, Dongcheng District, Beijing, 100730, China
| | - Yunjun Li
- Department of Neurosurgery, PLA Army General Hospital, No.5 Nanmencang Hutong, Dongcheng District, Beijing, 100730, China
| | - Ruxiang Xu
- Department of Neurosurgery, PLA Army General Hospital, No.5 Nanmencang Hutong, Dongcheng District, Beijing, 100730, China.
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Wang Y, Sun X, Ji K, Du L, Xu C, He N, Wang J, Liu Y, Liu Q. Sirt3-mediated mitochondrial fission regulates the colorectal cancer stress response by modulating the Akt/PTEN signalling pathway. Biomed Pharmacother 2018; 105:1172-1182. [DOI: 10.1016/j.biopha.2018.06.071] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/11/2018] [Accepted: 06/13/2018] [Indexed: 02/07/2023] Open
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Ji K, Lin K, Wang Y, Du L, Xu C, He N, Wang J, Liu Y, Liu Q. TAZ inhibition promotes IL-2-induced apoptosis of hepatocellular carcinoma cells by activating the JNK/F-actin/mitochondrial fission pathway. Cancer Cell Int 2018; 18:117. [PMID: 30127666 PMCID: PMC6092825 DOI: 10.1186/s12935-018-0615-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 08/09/2018] [Indexed: 01/31/2023] Open
Abstract
Background Cytokine-based cancer therapies have attracted a great deal of attention in recent years. Unfortunately, resistance to treatment limits the efficacy of these therapeutics. Therefore, the aim of our study was to explore the mechanism of IL-2-based therapy for hepatocellular carcinoma in an attempt to increase the efficiency of this treatment option. Methods HepG2 cells were treated with IL-2. Then, siRNA against TZA was used to transfected into HepG2 cells. Cellular apoptosis was measured via MTT assay, TUNEL assay and caspase-3 activity. Cellular proliferation was evaluated via EdU assay and western blotting. Cellular migration was detected via Transwell assay. Mitochondrial function was monitored by mitochondrial potential analysis, ROS staining, immunofluorescence and western blotting. Pathway blocker and activator were used to establish the role of JNK/F-actin/mitochondrial fission signaling pathway in HepG2 cells stress response. Results Our study found that IL-2 treatment significantly reduced the viability, mobility and proliferation of HepG2 cells in vitro. We also demonstrated that IL-2 treatment was accompanied by an increase in the expression of transcriptional co-activator with PDZ-binding motif (TAZ). Interestingly, genetic ablation of TAZ in the presence of IL-2 further promoted apoptosis, inhibited mobility, and arrested proliferation in HepG2 cells. At the molecular level, IL-2 administration activated excessive mitochondrial fission via the JNK/F-actin pathway; these effects were further enhanced by TAZ deletion. Mechanistically, TAZ knockdown further increased the expression of mitochondrial fission-related proteins such as Drp1, Mff and Fis. The augmented mitochondrial fission stimulated ROS overproduction, mediated redox imbalance, interrupted mitochondrial energy generation, reduced mitochondrial membrane potential, promoted leakage of the pro-apoptotic molecule cyt-c into the nucleus, and initiated caspase-9-related mitochondrial death. Further, we demonstrated that the anti-proliferative and anti-metastatic effects of IL-2 in HepG2 cells were enhanced by TAZ deletion, suggesting that IL-2 sensitizes HepG2 cells to IL-2-based cytokine therapy. However, JNK/F-actin pathway blockade could abrogate the inhibitory effects of TAZ deletion on HepG2 migration, proliferation and survival. Conclusions Taken together, our data indicate that the anti-tumor effects of IL-2-based therapies may be enhanced by TAZ deletion in a JNK/F-actin pathway-dependent manner. This finding provides a novel combinatorial therapeutic approach for treating hepatocellular carcinoma that might significantly increase the efficacy of cytokine-based therapies in a clinical setting. Electronic supplementary material The online version of this article (10.1186/s12935-018-0615-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kaihua Ji
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Radiation and Molecular Nuclear Medicine, Tianjin, 300192 China
| | - Kaili Lin
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Radiation and Molecular Nuclear Medicine, Tianjin, 300192 China
| | - Yan Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Radiation and Molecular Nuclear Medicine, Tianjin, 300192 China
| | - Liqing Du
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Radiation and Molecular Nuclear Medicine, Tianjin, 300192 China
| | - Chang Xu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Radiation and Molecular Nuclear Medicine, Tianjin, 300192 China
| | - Ningning He
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Radiation and Molecular Nuclear Medicine, Tianjin, 300192 China
| | - Jinhan Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Radiation and Molecular Nuclear Medicine, Tianjin, 300192 China
| | - Yang Liu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Radiation and Molecular Nuclear Medicine, Tianjin, 300192 China
| | - Qiang Liu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Radiation and Molecular Nuclear Medicine, Tianjin, 300192 China
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Li R, Xin T, Li D, Wang C, Zhu H, Zhou H. Therapeutic effect of Sirtuin 3 on ameliorating nonalcoholic fatty liver disease: The role of the ERK-CREB pathway and Bnip3-mediated mitophagy. Redox Biol 2018; 18:229-243. [PMID: 30056271 PMCID: PMC6079484 DOI: 10.1016/j.redox.2018.07.011] [Citation(s) in RCA: 247] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 07/18/2018] [Accepted: 07/19/2018] [Indexed: 12/11/2022] Open
Abstract
Increased mitochondrial damage is related to the progression of a diet-induced nonalcoholic fatty liver disease. The aim of our study is to investigate the role of Sirtuin 3 (Sirt3) in treating nonalcoholic fatty liver disease with a focus on mitophagy and the ERK-CREB pathway. Our data indicated that Sirt3 was downregulated in liver tissue in response to chronic HFD treatment. Interestingly, re-introduction of Sirt3 protected hepatic function, attenuated liver fibrosis, alleviated the inflammatory response, and prevented hepatocyte apoptosis. Molecular investigations demonstrated that lipotoxicity was associated with an increase in mitochondrial apoptosis as evidenced by reduced mitochondrial potential, augmented ROS production, increased cyt-c leakage into the nucleus, and activated caspase-9 apoptotic signalling. Additionally, Sirt3 overexpression protected hepatocytes against mitochondrial apoptosis via promoting Bnip3-required mitophagy. Functional studies showed that Sirt3 reversed Bnip3 expression and mitophagy activity via the ERK-CREB signalling pathway. Blockade of the ERK-CREB axis repressed the promotive effects of Sirt3 on Bnip3 activation and mitophagy augmentation, finally negating the anti-apoptotic influences of Sirt3 on hepatocytes in the setting of high-fat-stress. Collectively, our data show that high-fat-mediated liver damage is associated with Sirt3 downregulation, which is followed by ERK-CREB pathway inactivation and Bnip3-mediated inhibition of mitophagy, causing hepatocytes to undergo mitochondria-dependent cell death. Based on this, strategies for enhancing Sirt3 activity and activating the ERK-CREB-Bnip3-mitophagy pathways could be used to treat nonalcoholic fatty liver disease. Sirt3 overexpression prevents diet-mediated fatty liver disease. Sirt3 blocks hepatocyte mitochondrial apoptosis in the setting of high-fat injury. Bnip3-mediated mitophagy protects mitochondria against high-fat-mediated damage. Sirt3 controls Bnip3-mediated mitophagy via the ERK-CREB signalling pathway.
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Affiliation(s)
- Ruibing Li
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China
| | - Ting Xin
- Department of Cardiology, Tianjin First Central Hospital, Tianjin 300192, PR China
| | - Dandan Li
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China
| | - Chengbin Wang
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China.
| | - Hang Zhu
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China.
| | - Hao Zhou
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, PR China; Center for Cardiovascular Research and Alternative Medicine, Wyoming University, Laramie, WY 82071, USA.
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Li M, Yang X, Wang S. PTEN enhances nasal epithelial cell resistance to TNFα‑induced inflammatory injury by limiting mitophagy via repression of the TLR4‑JNK‑Bnip3 pathway. Mol Med Rep 2018; 18:2973-2986. [PMID: 30015897 DOI: 10.3892/mmr.2018.9264] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 05/23/2018] [Indexed: 11/05/2022] Open
Abstract
Nasal epithelial cell inflammatory injury is associated with chronic obstructive pulmonary disease development. However, the mechanism by which inflammation triggers nasal epithelial cell damage remains unclear. In the present study, tumor necrosis factor (TNF)α was used to induce an inflammatory injury and explore the underlying pathogenesis for nasal epithelial cell apoptosis in vitro, with a focus on mitochondrial homeostasis. Then, cellular apoptosis was detected via a terminal deoxynucleotidyl‑transferase‑mediated dUTP nick end labeling assay and western blotting. Mitochondrial function was evaluated via JC‑1 staining, mPTP opening measurement and western blotting. The results demonstrated that TNFα treatment induced nasal epithelial cell apoptosis, proliferation arrest and migration inhibition via downregulating phosphatase and tensin homolog (PTEN) levels. Increased PTEN expression was associated with reduce Toll‑like receptor (TLR)4‑c‑Jun kinase (JNK)‑Bcl2‑interacting protein 3 (Bnip3) pathway signaling, leading to reductions in mitophagy activity. Excessive mitophagy resulted in ATP deficiencies, mitochondrial dysfunction, caspase‑9 activation and cellular apoptosis. By contrast, PTEN overexpression in nasal epithelial cells alleviated the mitochondrial damage and cellular apoptosis via inhibiting the TLR4‑JNK‑Bnip3 pathway, favoring the survival of nasal epithelial cells under inflammatory injury. Therefore, this data uncovered a potential molecular basis for nasal epithelial cell apoptosis in response to inflammatory injury, and PTEN was identified as the endogenous defender of nasal epithelial cell survival via controlling lethal mitophagy by inhibiting the TLR4‑JNK‑Bnip3 pathway, suggesting that this pathway may be a potential target for clinically treating chronic nasal and sinus inflammatory injury.
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Affiliation(s)
- Meng Li
- Department of Chinese Medicine, Children's Hospital Affiliated to Capital Institute of Pediatrics, Beijing 100020, P.R. China
| | - Xiang Yang
- Department of Cardiac Surgery, Children's Hospital Affiliated to Capital Institute of Pediatrics, Beijing 100020, P.R. China
| | - Shouchuan Wang
- Department of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
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Zhou H, Wang S, Hu S, Chen Y, Ren J. ER-Mitochondria Microdomains in Cardiac Ischemia-Reperfusion Injury: A Fresh Perspective. Front Physiol 2018; 9:755. [PMID: 29962971 PMCID: PMC6013587 DOI: 10.3389/fphys.2018.00755] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/29/2018] [Indexed: 12/22/2022] Open
Abstract
The mitochondrial and endoplasmic reticulum (ER) homeostasis is pivotal to the maintenance of an array of physiological processes. The physical contact and association between ER and mitochondria, known as the ER–mitochondria microdomains or mitochondria-associated ER membrane (MAM), temporally and spatially regulates the mitochondria/ER structure and function. More evidence suggests a role for MAMs in energy production, cellular contraction and mobility, and normal extracellular signal transmission. In pathological states, such as cardiac ischemia–reperfusion (I/R injury), this ER–mitochondria microdomains may act to participate in the cellular redox imbalance, ER stress, mitochondrial injury, energy deletion, and programmed cell death. From a therapeutic perspective, a better understanding of the cellular and molecular mechanisms of the pathogenic ER–mitochondria contact should help to identify potential therapeutic target for cardiac I/R injury and other cardiovascular diseases and also pave the road to new treatment modalities pertinent for the treatment of reperfusion damage in clinical practice. This review will mainly focus on the possible signaling pathways involved in the regulation of the ER–mitochondria contact. In particular, we will summarize the downstream signaling modalities influenced by ER–mitochondria microdomains, for example, mitochondrial fission, mitophagy, calcium balance, oxidative stress, and programmed cell death in details.
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Affiliation(s)
- Hao Zhou
- Chinese People's Liberation Army General Hospital, People's Liberation Army Medical School, Beijing, China.,Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY, United States
| | - Shuyi Wang
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY, United States
| | - Shunying Hu
- Chinese People's Liberation Army General Hospital, People's Liberation Army Medical School, Beijing, China
| | - Yundai Chen
- Chinese People's Liberation Army General Hospital, People's Liberation Army Medical School, Beijing, China
| | - Jun Ren
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY, United States.,Department of Cardiology, Zhong Shan Hospital, Fudan University, Shanghai, China
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Tanshinone IIA regulates colorectal cancer apoptosis via attenuation of Parkin‑mediated mitophagy by suppressing AMPK/Skp2 pathways. Mol Med Rep 2018; 18:1692-1703. [PMID: 29845197 DOI: 10.3892/mmr.2018.9087] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 04/04/2018] [Indexed: 11/05/2022] Open
Abstract
Mitophagy is important for cancer development. Notably, the role of Parkin‑mediated mitophagy in colorectal cancer (CRC) mortality has not been fully determined. Therefore, the present study aimed to investigate the effect of Parkin‑mediated mitophagy on CRC apoptosis. In addition, the present study investigated the therapeutic effects of Tanshinone IIA (Tan IIA) on the regulation of CRC cell death via mitophagy. Cellular apoptosis was measured following Tan IIA treatment. In addition, mitophagy activity was evaluated by immunofluorescence and western blotting. The results of the present study revealed that Tan IIA may enhance CRC cell death. In addition, the results demonstrated that Tan IIA enhanced mitochondrial apoptosis, as demonstrated by reduced mitochondrial membrane potential, elevated mitochondrial permeability transition pore opening, and increased oxidative stress, mitochondrial energy disorder and proapoptotic factor expression. Furthermore, the results of the present study demonstrated that Tan IIA induced mitochondrial apoptosis via inhibition of mitophagy. In addition, it was revealed that mitophagy could suppress mitochondrial apoptosis. Functional assays revealed that Tan IIA suppressed the adenosine monophosphate‑activated protein kinase (AMPK) pathway, resulting in the inactivation of S‑phase kinase associated protein 2 (Skp2). Furthermore, reduced levels of Skp2 failed to activate Parkin, thus resulting in inhibition of mitophagy. Conversely, reactivation of AMPK and overexpression of Skp2 rescued mitophagy activity and thus attenuated the Tan IIA‑induced apoptosis of CRC cells. In conclusion, the results of the present study demonstrated the beneficial role of mitophagy in CRC cell survival and suggested that Tan IIA may be an effective therapeutic agent, which suppresses mitophagy activity and enhances CRC apoptosis.
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Wang X, Song Q. Mst1 regulates post-infarction cardiac injury through the JNK-Drp1-mitochondrial fission pathway. Cell Mol Biol Lett 2018; 23:21. [PMID: 29760744 PMCID: PMC5941482 DOI: 10.1186/s11658-018-0085-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 04/20/2018] [Indexed: 12/13/2022] Open
Abstract
Background Post-infarction cardiac injury is closely associated with cardiac remodeling and heart dysfunction. Mammalian STE20-like kinase 1 (Mst1), a regulator of cellular apoptosis, is involved in cardiac remodeling in post-infarction heart, but the mechanisms remain poorly defined. We aimed to explore the role of Mst1 in regulating chronic post-infarction cardiac injury, with a focus on mitochondrial homoeostasis. Methods Wild-type (WT) and Mst1-knockout mice were as the cardiac myocardial infarction model. Cardiac fibrosis, myocardial inflammation response, heart dysfunction and cardiomyocyte death were measured in vivo using immunohistochemistry, immunofluorescence, western blot, qPCR and TUNEL assays. Cardiomyocytes were isolated from WT and Mst1-knockout mice, and a chronic hypoxia model was used to induce damage. Mitochondrial function was determined via JC1 staining, ROS measurement, cyt-c leakage detection and mitochondrial apoptotic pathways analysis. Mitochondrial fission was observed using immunofluorescence. A pathway activator and inhibitor were applied to establish the signaling pathways involved in regulating mitochondrial homeostasis. Results Our study demonstrated that Mst1 expression was significantly upregulated in the heart post-infarction. Activated Mst1 induced cardiac fibrosis, an excessive inflammatory response, and cardiomyocyte death, whereas the genetic ablation of Mst1 protected the myocardium against chronic post-infarction injury. Function assays showed that upregulation of Mst1 activity contributed to JNK pathway activation, which led to Drp1 migration from the cytoplasm onto the surface of the mitochondria, indicative of mitochondrial fission activation. Excessive mitochondrial fission caused mitochondrial fragmentation, resulting in mitochondrial potential collapse, ROS overproduction, mitochondrial pro-apoptotic leakage into the cytoplasm, and the initiation of caspase-9-mediated mitochondrial apoptosis. By contrast, Mst1 deletion helped to maintain mitochondrial structure and function, sending pro-survival signals to the cardiomyocytes. Conclusions Our results identify Mst1 as a malefactor in the development of post-infarction cardiac injury and that it acts through the JNK-Drp1-mitochondrial fission pathway.
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Affiliation(s)
- Xisong Wang
- Department of Critical Care Medicine, the Chinese PLA General Hospital, Beijing, China
| | - Qing Song
- Department of Critical Care Medicine, the Chinese PLA General Hospital, Beijing, China
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