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Lee S, Kim YG, Jung HI, Lim JS, Nam KC, Choi HS, Kwak BS. Bone-on-a-chip simulating bone metastasis in osteoporosis. Biofabrication 2024; 16:045025. [PMID: 39116896 DOI: 10.1088/1758-5090/ad6cf9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 08/08/2024] [Indexed: 08/10/2024]
Abstract
Osteoporosis is the most common bone disorder, which is a highly dangerous condition that can promote bone metastases. As the current treatment for osteoporosis involves long-term medication therapy and a cure for bone metastasis is not known, ongoing efforts are required for drug development for osteoporosis. Animal experiments, traditionally used for drug development, raise ethical concerns and are expensive and time-consuming. Organ-on-a-chip technology is being developed as a tool to supplement such animal models. In this study, we developed a bone-on-a-chip by co-culturing osteoblasts, osteocytes, and osteoclasts in an extracellular matrix environment that can represent normal bone, osteopenia, and osteoporotic conditions. We then simulated bone metastases using breast cancer cells in three different bone conditions and observed that bone metastases were most active in osteoporotic conditions. Furthermore, it was revealed that the promotion of bone metastasis in osteoporotic conditions is due to increased vascular permeability. The bone-on-a-chip developed in this study can serve as a platform to complement animal models for drug development for osteoporosis and bone metastasis.
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Affiliation(s)
- Sunghan Lee
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seadaemun-gu, Seoul 03722, Republic of Korea
- College of Medicine, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyangsi, Gyeonggi-do 10326, Republic of Korea
| | - Young Gyun Kim
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seadaemun-gu, Seoul 03722, Republic of Korea
- College of Medicine, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyangsi, Gyeonggi-do 10326, Republic of Korea
| | - Hyo-Il Jung
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seadaemun-gu, Seoul 03722, Republic of Korea
- The DABOM Inc., 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Ji Seok Lim
- School of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan-si, Gyeongsanbuk-do 38541, Republic of Korea
- MediSphere Inc., 280, Daehak-ro, Gyeongsan-si, Gyeongsangbuk-do 38541, Republic of Korea
| | - Ki Chang Nam
- College of Medicine, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyangsi, Gyeonggi-do 10326, Republic of Korea
| | - Han Seok Choi
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Dongguk University Ilsan Hospital, 27 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Bong Seop Kwak
- College of Medicine, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyangsi, Gyeonggi-do 10326, Republic of Korea
- MediSphere Inc., 280, Daehak-ro, Gyeongsan-si, Gyeongsangbuk-do 38541, Republic of Korea
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Sinitca AM, Lyanova AI, Kaplun DI, Hassan H, Krasichkov AS, Sanarova KE, Shilenko LA, Sidorova EE, Akhmetova AA, Vaulina DD, Karpov AA. Microscopy Image Dataset for Deep Learning-Based Quantitative Assessment of Pulmonary Vascular Changes. Sci Data 2024; 11:635. [PMID: 38879569 PMCID: PMC11180164 DOI: 10.1038/s41597-024-03473-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 06/04/2024] [Indexed: 06/19/2024] Open
Abstract
Pulmonary hypertension (PH) is a syndrome complex that accompanies a number of diseases of different etiologies, associated with basic mechanisms of structural and functional changes of the pulmonary circulation vessels and revealed pressure increasing in the pulmonary artery. The structural changes in the pulmonary circulation vessels are the main limiting factor determining the prognosis of patients with PH. Thickening and irreversible deposition of collagen in the pulmonary artery branches walls leads to rapid disease progression and a therapy effectiveness decreasing. In this regard, histological examination of the pulmonary circulation vessels is critical both in preclinical studies and clinical practice. However, measurements of quantitative parameters such as the average vessel outer diameter, the vessel walls area, and the hypertrophy index claimed significant time investment and the requirement for specialist training to analyze micrographs. A dataset of pulmonary circulation vessels for pathology assessment using semantic segmentation techniques based on deep-learning is presented in this work. 609 original microphotographs of vessels, numerical data from experts' measurements, and microphotographs with outlines of these measurements for each of the vessels are presented. Furthermore, here we cite an example of a deep learning pipeline using the U-Net semantic segmentation model to extract vascular regions. The presented database will be useful for the development of new software solutions for the analysis of histological micrograph.
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Affiliation(s)
- Aleksandr M Sinitca
- Centre for Digital Telecommunication Technologies, St. Petersburg Electrotechnical University "LETI", St. Petersburg, 197022, Russia
| | - Asya I Lyanova
- Centre for Digital Telecommunication Technologies, St. Petersburg Electrotechnical University "LETI", St. Petersburg, 197022, Russia
| | - Dmitrii I Kaplun
- Artificial Intelligence Research Institute, China University of Mining and Technology, Xuzhou, 221116, China.
- Department of Automation and Control Processes, St. Petersburg Electrotechnical University "LETI", St. Petersburg, 197022, Russia.
| | - Hassan Hassan
- Department of Automation and Control Processes, St. Petersburg Electrotechnical University "LETI", St. Petersburg, 197022, Russia
| | - Alexander S Krasichkov
- Radio Engineering Systems Department, St. Petersburg Electrotechnical University "LETI", St. Petersburg, 197022, Russia
- Department of Computer Science and Engineering, St. Petersburg Electrotechnical University "LETI", 197022, Saint Petersburg, Russia
| | - Kseniia E Sanarova
- Radio Engineering Systems Department, St. Petersburg Electrotechnical University "LETI", St. Petersburg, 197022, Russia
| | - Leonid A Shilenko
- Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, 197341, Russia
| | - Elizaveta E Sidorova
- Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, 197341, Russia
| | - Anna A Akhmetova
- Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, 197341, Russia
| | - Dariya D Vaulina
- Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, 197341, Russia
| | - Andrei A Karpov
- Department of Computer Science and Engineering, St. Petersburg Electrotechnical University "LETI", 197022, Saint Petersburg, Russia
- Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, 197341, Russia
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3
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Yang L, Du H, Zhang X, Zhang D, Su X, Qiao Z, Gao B. Evaluation of the correlation between cerebral hemodynamics and blood pressure by comparative analysis of variation in cerebral blood flow in hypertensive versus normotensive individuals: A systematic review and meta-analysis. BIOMOLECULES & BIOMEDICINE 2024; 24:775-786. [PMID: 38709773 PMCID: PMC11293236 DOI: 10.17305/bb.2024.10230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/20/2024] [Accepted: 04/20/2024] [Indexed: 05/08/2024]
Abstract
Current understanding of the cerebral vascular response to variations in blood pressure (BP) among individuals with hypertension is limited. The aim of this meta-analysis was to determine the correlation between hypertension, risk of stroke, and cerebral blood flow (CBF). We reviewed studies published between 2000 and 2023 from PubMed, Google Scholar, and Science Direct that compared mean CBF in normotensive (NTN) and hypertensive (HTN) patients. A random effects model was used to construct the risk ratio (RR), 95% confidence interval (CI), forest plot, and inverse variance weighting. Additionally, a mixed-effects meta-regression was employed to examine the impact of study-specific patient variables. This meta-analysis included eight prospective cross-sectional studies published from 2002 to 2023. It revealed a significant average difference in the standard mean CBF of -0.45 (95% CI -0.60 to -0.30, I2 = 69%, P < 0.00001), distinguishing NTN from HTN subjects. A RR of 0.90 (95% CI 0.63 to 1.30, I2 = 89%, P = 0.04) indicated a significant decrease in CBF among individuals with hypertension. We found a statistically significant relationship between changes in diastolic and systolic BPs and the mean CBF (R -0.81, P = 0.001 and R = -0.90, P = 0.005, respectively). Our research demonstrates a strong relationship between elevated BP and reduced CBF, with hypertension reducing CBF compared to NTN individuals, by increasing cerebrovascular resistance.
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Affiliation(s)
- Lei Yang
- Department of Neurosurgery, Shijiazhuang People’s Hospital, Shijiazhuang, China
| | - Hong Du
- Department of Cardiology, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xuejing Zhang
- Center of Medical Research, Shijiazhuang People’s Hospital, Shijiazhuang, China
| | - Dongliang Zhang
- Department of Neurosurgery, Shijiazhuang People’s Hospital, Shijiazhuang, China
| | - Xianhui Su
- Department of Neurosurgery, Shijiazhuang People’s Hospital, Shijiazhuang, China
| | - Zongrong Qiao
- Department of Neurosurgery, Shijiazhuang People’s Hospital, Shijiazhuang, China
| | - Bulang Gao
- Center of Medical Research, Shijiazhuang People’s Hospital, Shijiazhuang, China
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Loyst RA, Cerri-Droz P, Liu SH, Cohen D, Komatsu DE, Wang ED. The role of hypertensive status in the preoperative patient selection of TSA. JSES Int 2024; 8:535-539. [PMID: 38707565 PMCID: PMC11064702 DOI: 10.1016/j.jseint.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024] Open
Abstract
Background This study investigates the relationship between hypertension and postoperative complications following total shoulder arthroplasty (TSA). Methods All patients who underwent TSA between 2015 and 2020 from the American College of Surgeons National Surgical Quality Improvement database were surveyed. The study population was divided into patients with no hypertension and patients with hypertension. Patient demographics, comorbidities, and 30-day postoperative complications were collected. Logistic regression analysis was used to investigate the relationship between hypertension and postoperative complications. Results Compared to no hypertension, hypertension was significantly associated with an increased likelihood of experiencing sepsis (P = .021), pneumonia (P = .019), myocardial infarction (P = .038), blood transfusions (P = .006), readmission (P < .001), reoperation (P < .001), non-home discharge (P < .001), and any complication (P < .001). After accounting for significant patient variables, compared to no hypertension, hypertension was independently significantly associated with an increased likelihood of experiencing reoperation (odds ratio 1.48; 95% CI, 1.142-1.905; P = .003) and any complication (odds ratio 1.10; 95% CI, 1.008-1.205; P = .033). Conclusion In this study, we identified hypertension as an independent significant predictor for both reoperation and any complication following TSA. This study provides evidence for incorporating a patient's hypertensive status into preoperative screening, aiming to improve surgical candidate selection and surgical outcomes following TSA.
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Affiliation(s)
- Rachel A. Loyst
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, USA
| | - Patricia Cerri-Droz
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, USA
| | - Steven H. Liu
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, USA
| | - Dorian Cohen
- Department of Orthopaedics, Stony Brook University, Stony Brook, NY, USA
| | - David E. Komatsu
- Department of Orthopaedics, Stony Brook University, Stony Brook, NY, USA
| | - Edward D. Wang
- Department of Orthopaedics, Stony Brook University, Stony Brook, NY, USA
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5
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Te R, Zhu B, Ma H, Zhang X, Chen S, Huang Y, Qi G. Machine learning approach for predicting post-intubation hemodynamic instability (PIHI) index values: towards enhanced perioperative anesthesia quality and safety. BMC Anesthesiol 2024; 24:136. [PMID: 38594630 PMCID: PMC11003123 DOI: 10.1186/s12871-024-02523-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 04/03/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND Adequate preoperative evaluation of the post-intubation hemodynamic instability (PIHI) is crucial for accurate risk assessment and efficient anesthesia management. However, the incorporation of this evaluation within a predictive framework have been insufficiently addressed and executed. This study aims to developed a machine learning approach for preoperatively and precisely predicting the PIHI index values. METHODS In this retrospective study, the valid features were collected from 23,305 adult surgical patients at Peking Union Medical College Hospital between 2012 and 2020. Three hemodynamic response sequences including systolic pressure, diastolic pressure and heart rate, were utilized to design the post-intubation hemodynamic instability (PIHI) index by computing the integrated coefficient of variation (ICV) values. Different types of machine learning models were constructed to predict the ICV values, leveraging preoperative patient information and initiatory drug infusion. The models were trained and cross-validated based on balanced data using the SMOTETomek technique, and their performance was evaluated according to the mean absolute error (MAE), root mean square error (RMSE), mean absolute percentage error (MAPE) and R-squared index (R2). RESULTS The ICV values were proved to be consistent with the anesthetists' ratings with Spearman correlation coefficient of 0.877 (P < 0.001), affirming its capability to effectively capture the PIHI variations. The extra tree regression model outperformed the other models in predicting the ICV values with the smallest MAE (0.0512, 95% CI: 0.0511-0.0513), RMSE (0.0792, 95% CI: 0.0790-0.0794), and MAPE (0.2086, 95% CI: 0.2077-0.2095) and the largest R2 (0.9047, 95% CI: 0.9043-0.9052). It was found that the features of age and preoperative hemodynamic status were the most important features for accurately predicting the ICV values. CONCLUSIONS Our results demonstrate the potential of the machine learning approach in predicting PIHI index values, thereby preoperatively informing anesthetists the possible anesthetic risk and enabling the implementation of individualized and precise anesthesia interventions.
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Affiliation(s)
- Rigele Te
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Bo Zhu
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China.
| | - Haobo Ma
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Isreal Deaconess Medical Center, Boston, MA, 02215, USA
| | - Xiuhua Zhang
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Shaohui Chen
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Yuguang Huang
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Geqi Qi
- Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport, Beijing Jiaotong University, Beijing, 100044, China
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6
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Chacar S, Abdi A, Almansoori K, Alshamsi J, Al Hageh C, Zalloua P, Khraibi AA, Holt SG, Nader M. Role of CaMKII in diabetes induced vascular injury and its interaction with anti-diabetes therapy. Rev Endocr Metab Disord 2024; 25:369-382. [PMID: 38064002 PMCID: PMC10943158 DOI: 10.1007/s11154-023-09855-9] [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] [Accepted: 11/16/2023] [Indexed: 03/16/2024]
Abstract
Diabetes mellitus is a metabolic disorder denoted by chronic hyperglycemia that drives maladaptive structural changes and functional damage to the vasculature. Attenuation of this pathological remodeling of blood vessels remains an unmet target owing to paucity of information on the metabolic signatures of this process. Ca2+/calmodulin-dependent kinase II (CaMKII) is expressed in the vasculature and is implicated in the control of blood vessels homeostasis. Recently, CaMKII has attracted a special attention in view of its chronic upregulated activity in diabetic tissues, yet its role in the diabetic vasculature remains under investigation.This review highlights the physiological and pathological actions of CaMKII in the diabetic vasculature, with focus on the control of the dialogue between endothelial (EC) and vascular smooth muscle cells (VSMC). Activation of CaMKII enhances EC and VSMC proliferation and migration, and increases the production of extracellular matrix which leads to maladaptive remodeling of vessels. This is manifested by activation of genes/proteins implicated in the control of the cell cycle, cytoskeleton organization, proliferation, migration, and inflammation. Endothelial dysfunction is paralleled by impaired nitric oxide signaling, which is also influenced by CaMKII signaling (activation/oxidation). The efficiency of CaMKII inhibitors is currently being tested in animal models, with a focus on the genetic pathways involved in the regulation of CaMKII expression (microRNAs and single nucleotide polymorphisms). Interestingly, studies highlight an interaction between the anti-diabetic drugs and CaMKII expression/activity which requires further investigation. Together, the studies reviewed herein may guide pharmacological approaches to improve health-related outcomes in patients with diabetes.
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Affiliation(s)
- Stephanie Chacar
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates.
- Center for Biotechnology, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates.
| | - Abdulhamid Abdi
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Khalifa Almansoori
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Jawaher Alshamsi
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Cynthia Al Hageh
- Department of Molecular Biology and Genetics, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Pierre Zalloua
- Department of Molecular Biology and Genetics, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates
| | - Ali A Khraibi
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates
| | - Stephen G Holt
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- SEHA Kidney Care, SEHA, Abu Dhabi, UAE
| | - Moni Nader
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates.
- Center for Biotechnology, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates.
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Thongsepee N, Martviset P, Himakhun W, Chantree P, Sornchuer P, Sangpairoj K, Hiranyachattada S. Cardiovascular Protective Effect of Garcinia dulcis Flower Acetone Extract in 2-Kidney-1-Clip Hypertensive Rats. Adv Pharmacol Pharm Sci 2024; 2024:9916598. [PMID: 38455637 PMCID: PMC10919976 DOI: 10.1155/2024/9916598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 12/25/2023] [Accepted: 02/03/2024] [Indexed: 03/09/2024] Open
Abstract
Morelloflavone and camboginol are bioactive compounds purified from Garcinia dulcis (GD), which has anti-inflammatory and antihypertensive properties. The objective of this study was to examine the cardiovascular protective effect of GD flower acetone extract in 2-kidney-1-clip (2K1C) hypertensive rats. Male Wistar rats underwent 2K1C or sham operation (SO) and were housed for 4 weeks. Each group of rats, then, was further divided into 2 subgroups receiving oral administration of either 50 mg/kg BW GD extract or corn oil (vehicle) daily for 4 weeks. Noninvasive blood pressure (BP) and body weight were measured weekly throughout the study. Subsequently, the invasive measurement of arterial BP and the heart rate were determined in all anesthetized rats. The baroreceptor reflex sensitivity (BRS) was investigated by injection of either phenylephrine or sodium nitroprusside for bradycardia or tachycardia response, respectively. Histological examination of the heart and thoracic aorta was also performed in order to investigate the general morphology and the tumor necrosis factor alpha (TNF-α) expression. We found that the GD flower extract significantly diminished the BP and restored the impaired BRS. Moreover, it also decreased the TNF-α expression in the cardiac muscle and thoracic aorta of 2K1C when compared to the SO group. Taken together, our data showed that GD flower extract exhibits the cardiovascular protective effect in the 2K1C hypertensive rats.
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Affiliation(s)
- Nattaya Thongsepee
- Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
- Thammasat University Research Unit in Nutraceuticals and Food Safety, Thammasat University, Pathum Thani 12120, Thailand
| | - Pongsakorn Martviset
- Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
- Thammasat University Research Unit in Nutraceuticals and Food Safety, Thammasat University, Pathum Thani 12120, Thailand
| | - Wanwisa Himakhun
- Department of Pathology, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Pathanin Chantree
- Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
- Thammasat University Research Unit in Nutraceuticals and Food Safety, Thammasat University, Pathum Thani 12120, Thailand
| | - Phornphan Sornchuer
- Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
- Thammasat University Research Unit in Nutraceuticals and Food Safety, Thammasat University, Pathum Thani 12120, Thailand
| | - Kant Sangpairoj
- Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
- Thammasat University Research Unit in Nutraceuticals and Food Safety, Thammasat University, Pathum Thani 12120, Thailand
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Nivison-Smith L, Faiza A, Roy T, Trinh M. Retinal vessel diameters in intermediate age-related macular degeneration using en face optical coherence tomography. Clin Exp Optom 2024:1-6. [PMID: 38412525 DOI: 10.1080/08164622.2024.2311703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 01/22/2024] [Indexed: 02/29/2024] Open
Abstract
CLINICAL RELEVANCE Clinical assessment of age-related macular degeneration (AMD) relies on biomarkers that do not necessarily reflect the contributions of vascular dysfunction. Validation of clinically accessible methods of measuring retinal vascular integrity could provide a more holistic understanding of AMD-related changes to facilitate appropriate care. BACKGROUND There is conflicting evidence if retinal vessel calibre is significantly altered in the early stages of AMD. This study examined the outer and inner diameters of first order retinal vessels in intermediate AMD eyes using en face optical coherence tomography (OCT). METHODS Retinal en face (6 × 6 mm) OCT images were examined in a single eye of participants with intermediate AMD (n = 46) versus normal macula (n = 43) for arterioles (all identifiable) and venules (40/46 and 39/43 identifiable). All participants were aged ≥50 years without diabetes mellitus, hypertension, or other systemic vascular disease. RESULTS Intra- and inter-grader agreement was good-to-excellent for all en face OCT measurements of arteriole and venule diameters (intraclass correlation coefficient = 0.87 to 0.99). Arteriolar outer diameters (82.3 ± 19.8 µm vs 73.8 ± 16.1 µm; p < 0.05) and inner diameters (35.1 ± 8.4 µm vs 31.5 ± 8.1 µm; p < 0.05) were significantly greater in AMD eyes compared to normal eyes. Venular inner diameter was significantly greater (43.1 ± 9.5 µm vs 39.2 ± 10.1 µm; p < 0.05), but outer diameter remained unchanged (p = 0.17) in AMD eyes compared to normal eyes. CONCLUSION Arteriolar dilation and altered venular inner diameter were observed in intermediate AMD eyes. These results support further investigation of vascular contributions to AMD in the early stages of disease, possibly using the en face OCT imaging modality.
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Affiliation(s)
- Lisa Nivison-Smith
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Alvia Faiza
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Tithi Roy
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Matt Trinh
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
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9
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Tavoian D, Mazzone JL, Craighead DH, Bailey EF. Acute inspiratory resistance training enhances endothelium-dependent dilation and retrograde shear rate in healthy young adults. Physiol Rep 2024; 12:e15943. [PMID: 38311364 PMCID: PMC10838658 DOI: 10.14814/phy2.15943] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 02/08/2024] Open
Abstract
Inspiratory resistance training (IRT) yields significant reductions in resting blood pressure and improves vascular endothelial function. Our objective was to quantify the acute effects of IRT on brachial artery flow-mediated dilation (FMD) and shear rates (SRs) in healthy men and women. Twenty young adults (22.9 ± 3.4 years; 10 male, 10 female) completed a single bout of IRT or Rest condition in a randomized crossover design. Brachial artery FMD was performed before, 10 min after, and 40 min after the assigned condition. Brachial artery blood flow velocities were collected during IRT, separated by breathing cycle phase, and converted into SRs. FMD improved 10 min post-IRT (+1.86 ± 0.61%; p = 0.025) but returned to baseline by 40 min post-IRT (p = 0.002). Anterograde SR decreased by 10% and retrograde SR increased 102% during resisted inspiration, relative to baseline SR (p < 0.001). Anterograde SR increased by 7% in men and women (p < 0.001) and retrograde SR decreased by 12% in women but not men (p = 0.022) during unresisted expiration, relative to baseline SR. A single bout of IRT elicits a transient enhancement in FMD in both men and women. Acute IRT-related enhancements in SRs may contribute to sustained improvements in FMD that have been reported previously.
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Affiliation(s)
- Dallin Tavoian
- Arizona Respiratory Neurophysiology Laboratory, Department of PhysiologyUniversity of ArizonaTucsonArizonaUSA
| | - Josie L. Mazzone
- Arizona Respiratory Neurophysiology Laboratory, Department of PhysiologyUniversity of ArizonaTucsonArizonaUSA
| | - Daniel H. Craighead
- Department of Integrative PhysiologyUniversity of Colorado BoulderBoulderColoradoUSA
| | - E. Fiona Bailey
- Arizona Respiratory Neurophysiology Laboratory, Department of PhysiologyUniversity of ArizonaTucsonArizonaUSA
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10
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Ray A, Stelloh C, Liu Y, Meyer A, Geurts AM, Cowley AW, Greene AS, Liang M, Rao S. Histone Modifications and Their Contributions to Hypertension. Hypertension 2024; 81:229-239. [PMID: 38031837 PMCID: PMC11229175 DOI: 10.1161/hypertensionaha.123.21755] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Essential hypertension, a multifaceted disorder, is a worldwide health problem. A complex network of genetic, epigenetic, physiological, and environmental components regulates blood pressure (BP), and any dysregulation of this network may result in hypertension. Growing evidence suggests a role for epigenetic factors in BP regulation. Any alterations in the expression or functions of these epigenetic regulators may dysregulate various determinants of BP, thereby promoting the development of hypertension. Histone posttranslational modifications are critical epigenetic regulators that have been implicated in hypertension. Several studies have demonstrated a clear association between the increased expression of some histone-modifying enzymes, especially HDACs (histone deacetylases), and hypertension. In addition, treatment with HDAC inhibitors lowers BP in hypertensive animal models, providing an excellent opportunity to design new drugs to treat hypertension. In this review, we discuss the potential contribution of different histone modifications to the regulation of BP.
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Affiliation(s)
- Atrayee Ray
- Versiti Blood Research Institute, Milwaukee, WI (A.R., C.S., A.M., S.R.)
- Department of Physiology, Center of Systems Molecular Medicine (A.R., A.M.G., A.C.), Medical College of Wisconsin, Milwaukee
| | - Cary Stelloh
- Versiti Blood Research Institute, Milwaukee, WI (A.R., C.S., A.M., S.R.)
| | - Yong Liu
- Department of Physiology, The University of Arizona, Tucson (Y.L., M.L.)
| | - Alison Meyer
- Versiti Blood Research Institute, Milwaukee, WI (A.R., C.S., A.M., S.R.)
| | - Aron M Geurts
- Department of Physiology, Center of Systems Molecular Medicine (A.R., A.M.G., A.C.), Medical College of Wisconsin, Milwaukee
| | - Allen W Cowley
- Department of Physiology, Center of Systems Molecular Medicine (A.R., A.M.G., A.C.), Medical College of Wisconsin, Milwaukee
| | | | - Mingyu Liang
- Department of Physiology, The University of Arizona, Tucson (Y.L., M.L.)
| | - Sridhar Rao
- Versiti Blood Research Institute, Milwaukee, WI (A.R., C.S., A.M., S.R.)
- Department of Pediatrics, Section of Hematology/Oncology/Transplantation (S.R.), Medical College of Wisconsin, Milwaukee
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11
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Abstract
Arterial stiffness and hypertension are closely related in pathophysiology. Chronic high blood pressure (BP) can lead to arterial wall damage by mechanical stress, endothelial dysfunction, increased inflammation, oxidative stress, and renin-angiotensin-aldosterone system (RAAS) activation. Hypertension also increases collagen fiber production and accelerates elastin fiber degradation. Stiffened arteries struggle with BP changes, raising systolic BP and pulse pressure. The resulting increased systolic pressure further hardens arteries, creating a harmful cycle of inflammation and calcification. Arterial stiffness data can predict target organ damage and future cardiovascular events in hypertensive patients. Thus, early detection of arterial stiffness aids in initiating preventive measures and treatment plans to protect against progression of vascular damage. While various methods exist for measuring arterial stiffness, pulse wave velocity is a non-invasive, simple measurement method that maximizes effectiveness. Healthy lifestyle changes, RAAS blockers, and statins are known to reduce arterial stiffness. Further research is needed to ascertain if improving arterial stiffness will enhance prognosis in hypertensive patients.
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Affiliation(s)
- Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, 5 Boramae-Ro, Dongjak-Gu, Seoul, 07061, Republic of Korea.
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12
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Kalra J, Artamonov M, Wang H, Franke A, Markowska Z, Jin L, Derewenda ZS, Ayon RJ, Somlyo A. p90RSK2, a new MLCK mediates contractility in myosin light chain kinase null smooth muscle. Front Physiol 2023; 14:1228488. [PMID: 37781225 PMCID: PMC10533999 DOI: 10.3389/fphys.2023.1228488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/24/2023] [Indexed: 10/03/2023] Open
Abstract
Introduction: Phosphorylation of smooth muscle (SM) myosin regulatory light chain (RLC20) is a critical switch leading to SM contraction. The canonical view held that only the short isoform of myosin light chain kinase (MLCK1) catalyzed this reaction. It is now accepted that auxiliary kinases may contribute to vascular SM tone and contractility. We have previously reported that p90 ribosomal S6 kinase (RSK2) functions as such a kinase, in parallel with MLCK1, contributing ∼25% of the maximal myogenic force in resistance arteries. Thus, RSK2 may be instrumental in the regulation of basal vascular tone and blood pressure. Here, we take advantage of a MLCK1 null mouse (mylk1 -/-) to further test our hypothesis that RSK2 can function as an MLCK, playing a significant physiological role in SM contractility. Methods: Using fetal (E14.5-18.5) SM tissues, as embryos die at birth, we investigated the necessity of MLCK for contractility and fetal development and determined the ability of RSK2 kinase to compensate for the lack of MLCK and characterized its signaling pathway in SM. Results and Discussion: Agonists induced contraction and RLC20 phosphorylation in mylk1 -/- SM was attenuated by RSK2 inhibition. The pCa-tension relationships in permeabilized strips of bladder showed no difference in Ca2+ sensitivity in WT vs mylk1 -/- muscles, although the magnitude of force responses was considerably smaller in the absence of MLCK. The magnitude of contractile responses was similar upon addition of GTPγS to activate the RhoA/ROCK pathway or calyculinA to inhibit the myosin phosphatase. The Ca2+-dependent tyrosine kinase, Pyk2, contributed to RSK2-mediated contractility and RLC20 phosphorylation. Proximity-ligation and immunoprecipitation assays demonstrated an association of RSK2, PDK1 and ERK1/2 with MLCK and actin. RSK2, PDK1, ERK1/2 and MLCK formed a signaling complex on the actin filament, positioning them for interaction with adjacent myosin heads. The Ca2+-dependent component reflected the agonist mediated increases in Ca2+, which activated the Pyk2/PDK1/RSK2 signaling cascade. The Ca2+-independent component was through activation of Erk1/2/PDK1/RSK2 leading to direct phosphorylation of RLC20, to increase contraction. Overall, RSK2 signaling constitutes a new third signaling pathway, in addition to the established Ca2+/CaM/MLCK and RhoA/ROCK pathways to regulate SM contractility.
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Affiliation(s)
- Jaspreet Kalra
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, United States
| | - Mykhaylo Artamonov
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, United States
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Hua Wang
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, United States
- Sentara Martha Jefferson Hospital, Charlottesville, VA, United States
| | - Aaron Franke
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, United States
- Brain Surgery Worldwide, Atlanta, GA, United States
| | - Zaneta Markowska
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, United States
| | - Li Jin
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, United States
- Department of Orthopedics, University of Virginia, Charlottesville, VA, United States
| | - Zygmunt S. Derewenda
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, United States
| | - Ramon J. Ayon
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, United States
| | - Avril Somlyo
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, United States
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13
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Kalra J, Artamonov M, Wang H, Franke A, Markowska Z, Jin L, Derewenda ZS, Ayon R, Somlyo A. p90RSK2, a new MLCK, rescues contractility in myosin light chain kinase null smooth muscle. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.22.541840. [PMID: 37292593 PMCID: PMC10245941 DOI: 10.1101/2023.05.22.541840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Background Phosphorylation of smooth muscle (SM) myosin regulatory light chain (RLC 20 ) is a critical switch leading to contraction or cell migration. The canonical view held that the only kinase catalyzing this reaction is the short isoform of myosin light chain kinase (MLCK1). Auxiliary kinases may be involved and play a vital role in blood pressure homeostasis. We have previously reported that p90 ribosomal S6 kinase (RSK2) functions as such a kinase, in parallel with the classical MLCK1, contributing ∼25% of the maximal myogenic force in resistance arteries and regulating blood pressure. Here, we take advantage of a MLCK1 null mouse to further test our hypothesis that RSK2 can function as an MLCK, playing a significant physiological role in SM contractility. Methods Fetal (E14.5-18.5) SM tissues were used as embryos die at birth. We investigated the necessity of MLCK for contractility, cell migration and fetal development and determined the ability of RSK2 kinase to compensate for the lack of MLCK and characterized it's signaling pathway in SM. Results Agonists induced contraction and RLC 20 phosphorylation in mylk1 -/- SM, that was inhibited by RSK2 inhibitors. Embryos developed and cells migrated in the absence of MLCK. The pCa-tension relationships in WT vs mylk1 -/- muscles demonstrated a Ca 2+ -dependency due to the Ca 2+ -dependent tyrosine kinase Pyk2, known to activate PDK1 that phosphorylates and fully activates RSK2. The magnitude of contractile responses was similar upon addition of GTPγS to activate the RhoA/ROCK pathway. The Ca 2+ -independent component was through activation of Erk1/2/PDK1/RSK2 leading to direct phosphorylation of RLC 20 , to increase contraction. RSK2, PDK1, Erk1/2 and MLCK formed a signaling complex on the actin filament, optimally positioning them for interaction with adjacent myosin heads. Conclusions RSK2 signaling constitutes a new third signaling pathway, in addition to the established Ca 2+ /CAM/MLCK and RhoA/ROCK pathways to regulate SM contractility and cell migration.
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14
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Da X, Li Z, Huang X, He Z, Yu Y, Tian T, Xu C, Yao Y, Wang QK. AGGF1 therapy inhibits thoracic aortic aneurysms by enhancing integrin α7-mediated inhibition of TGF-β1 maturation and ERK1/2 signaling. Nat Commun 2023; 14:2265. [PMID: 37081014 PMCID: PMC10119315 DOI: 10.1038/s41467-023-37809-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 03/30/2023] [Indexed: 04/22/2023] Open
Abstract
Thoracic aortic aneurysm (TAA) is a localized or diffuse dilatation of the thoracic aortas, and causes many sudden deaths each year worldwide. However, there is no effective pharmacologic therapy. Here, we show that AGGF1 effectively blocks TAA-associated arterial inflammation and remodeling in three different mouse models (mice with transverse aortic constriction, Fbn1C1041G/+ mice, and β-aminopropionitrile-treated mice). AGGF1 expression is reduced in the ascending aortas from the three models and human TAA patients. Aggf1+/- mice and vascular smooth muscle cell (VSMC)-specific Aggf1smcKO knockout mice show aggravated TAA phenotypes. Mechanistically, AGGF1 enhances the interaction between its receptor integrin α7 and latency-associated peptide (LAP)-TGF-β1, blocks the cleavage of LAP-TGF-β1 to form mature TGF-β1, and inhibits Smad2/3 and ERK1/2 phosphorylation in VSMCs. Pirfenidone, a treatment agent for idiopathic pulmonary fibrosis, inhibits TAA-associated vascular inflammation and remodeling in wild type mice, but not in Aggf1+/- mice. In conclusion, we identify an innovative AGGF1 protein therapeutic strategy to block TAA-associated vascular inflammation and remodeling, and show that efficacy of TGF-β inhibition therapies require AGGF1.
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Affiliation(s)
- Xingwen Da
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Ziyan Li
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Xiaofan Huang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Zuhan He
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Yubing Yu
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Tongtong Tian
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Chengqi Xu
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P. R. China.
- Institute of Medical Genomics and School of Biomedical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, P. R. China.
| | - Yufeng Yao
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P. R. China.
| | - Qing K Wang
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P. R. China.
- Institute of Medical Genomics and School of Biomedical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, P. R. China.
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15
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Davis MJ, Earley S, Li YS, Chien S. Vascular mechanotransduction. Physiol Rev 2023; 103:1247-1421. [PMID: 36603156 PMCID: PMC9942936 DOI: 10.1152/physrev.00053.2021] [Citation(s) in RCA: 45] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 01/07/2023] Open
Abstract
This review aims to survey the current state of mechanotransduction in vascular smooth muscle cells (VSMCs) and endothelial cells (ECs), including their sensing of mechanical stimuli and transduction of mechanical signals that result in the acute functional modulation and longer-term transcriptomic and epigenetic regulation of blood vessels. The mechanosensors discussed include ion channels, plasma membrane-associated structures and receptors, and junction proteins. The mechanosignaling pathways presented include the cytoskeleton, integrins, extracellular matrix, and intracellular signaling molecules. These are followed by discussions on mechanical regulation of transcriptome and epigenetics, relevance of mechanotransduction to health and disease, and interactions between VSMCs and ECs. Throughout this review, we offer suggestions for specific topics that require further understanding. In the closing section on conclusions and perspectives, we summarize what is known and point out the need to treat the vasculature as a system, including not only VSMCs and ECs but also the extracellular matrix and other types of cells such as resident macrophages and pericytes, so that we can fully understand the physiology and pathophysiology of the blood vessel as a whole, thus enhancing the comprehension, diagnosis, treatment, and prevention of vascular diseases.
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Affiliation(s)
- Michael J Davis
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Scott Earley
- Department of Pharmacology, University of Nevada, Reno, Nevada
| | - Yi-Shuan Li
- Department of Bioengineering, University of California, San Diego, California
- Institute of Engineering in Medicine, University of California, San Diego, California
| | - Shu Chien
- Department of Bioengineering, University of California, San Diego, California
- Institute of Engineering in Medicine, University of California, San Diego, California
- Department of Medicine, University of California, San Diego, California
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16
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Pedrinolla A, Cavedon V, Milanese C, Barbi C, Giuriato G, Laginestra FG, Martignon C, Schena F, Venturelli M. The role of muscle mass in vascular remodeling: insights from a single-leg amputee model. Eur J Appl Physiol 2023; 123:523-531. [PMID: 36367571 PMCID: PMC9941227 DOI: 10.1007/s00421-022-05076-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/17/2022] [Indexed: 11/13/2022]
Abstract
PURPOSE Both muscle mass and physical activity are independent mechanisms that play a role in vascular remodeling, however, the direct impact of muscle mass on the structure and function of the vessels is not clear. The aim of the study was to determine the impact of muscle mass alteration on lower limbs arterial diameter, blood flow, shear rate and arterial stiffness. METHODS Nine (33 ± 13 yrs) male individuals with a single-leg amputation were recruited. Vascular size (femoral artery diameter), hemodynamics (femoral artery blood flow and shear rate were measured at the level of the common femoral artery in both amputated (AL) and whole limbs (WL). Muscle mass of both limbs, including thigh for AL and thigh and leg for WL, was measured with a DXA system. RESULTS AL muscle mass was reduced compared to the WL (3.2 ± 1.2 kg vs. 9.4 ± 2.1 kg; p = 0.001). Diameter of the femoral artery was reduced in the AL (0.5 ± 0.1 cm) in comparison to the WL (0.9 ± 0.2 cm, p = 0.001). However, femoral artery blood flow normalized for the muscle mass (AL = 81.5 ± 78.7ml min-1 kg-1,WL = 32.4 ± 18.3; p = 0.11), and blood shear rate (AL = 709.9 ± 371.4 s-1, WL = 526,9 ± 295,6; p = 0.374) were non different between limbs. A correlation was found only between muscle mass and femoral artery diameter (p = 0.003, R = 0.6561). CONCLUSION The results of this study revealed that the massive muscle mass reduction caused by a leg amputation, but independent from the level of physical activity, is coupled by a dramatic arterial diameter decrease. Interestingly, hemodynamics and arterial stiffness do not seem to be impacted by these structural changes.
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Affiliation(s)
- Anna Pedrinolla
- Section of Movement Science, Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Via Felice Casorati 43, 37137, Verona, Italy.
| | - Valentina Cavedon
- grid.5611.30000 0004 1763 1124Section of Movement Science, Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Via Felice Casorati 43, 37137 Verona, Italy
| | - Chiara Milanese
- grid.5611.30000 0004 1763 1124Section of Movement Science, Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Via Felice Casorati 43, 37137 Verona, Italy
| | - Chiara Barbi
- grid.5611.30000 0004 1763 1124Section of Movement Science, Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Via Felice Casorati 43, 37137 Verona, Italy
| | - Gaia Giuriato
- grid.5611.30000 0004 1763 1124Section of Movement Science, Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Via Felice Casorati 43, 37137 Verona, Italy
| | - Fabio Giuseppe Laginestra
- grid.5611.30000 0004 1763 1124Section of Movement Science, Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Via Felice Casorati 43, 37137 Verona, Italy
| | - Camilla Martignon
- grid.5611.30000 0004 1763 1124Section of Movement Science, Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Via Felice Casorati 43, 37137 Verona, Italy
| | - Federico Schena
- grid.5611.30000 0004 1763 1124Section of Movement Science, Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Via Felice Casorati 43, 37137 Verona, Italy
| | - Massimo Venturelli
- grid.5611.30000 0004 1763 1124Section of Movement Science, Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Via Felice Casorati 43, 37137 Verona, Italy ,grid.223827.e0000 0001 2193 0096Division of Geriatrics, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah USA
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17
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Sun X, Wang M, Xu C, Wang S, Li L, Zou S, Yu J, Wei Y. Positive Effect of a Pea-Clam Two-Peptide Composite on Hypertension and Organ Protection in Spontaneously Hypertensive Rats. Nutrients 2022; 14:4069. [PMID: 36235721 PMCID: PMC9571109 DOI: 10.3390/nu14194069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 11/07/2022] Open
Abstract
In the present study, we prepared pea peptides with high angiotensin-converting enzyme (ACE) inhibitory activity in vitro using an enzymatic hydrolysis of pea protein and compounded them with clam peptides to obtain a pea-clam double peptide. The effects of the two-peptide composite and pea peptides on hypertension and the damage-repair of corresponding organs were studied in spontaneously hypertensive rats (SHRs). We found that both pea peptides and the two-peptide composite significantly reduced the blood pressure upon a single or long-term intragastric administration, with the two-peptide composite being more effective. Mechanistically, we found that the two-peptide composite could regulate the renal renin-angiotensin system (RAS), rebalance gut microbial dysbiosis, decrease renal and myocardial fibrosis, and improve renal and cardiac function and vascular remodeling. Additionally, hippocampal lesions caused by hypertension were also eliminated after two-peptide composite administration. Our research provides a scientific basis for the use of this two-peptide composite as a safe antihypertension ingredient in functional foods.
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Affiliation(s)
- Xiaopeng Sun
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Min Wang
- Chenland Nutritionals, Inc., Invine, CA 92614, USA
| | - Chuanjin Xu
- The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266071, China
| | | | - Li Li
- Chenland Nutritionals, Inc., Invine, CA 92614, USA
| | - Shengcan Zou
- Chenland Nutritionals, Inc., Invine, CA 92614, USA
| | - Jia Yu
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Yuxi Wei
- College of Life Sciences, Qingdao University, Qingdao 266071, China
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18
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GJD Modulates Cardiac/Vascular Inflammation and Decreases Blood Pressure in Hypertensive Rats. Mediators Inflamm 2022; 2022:7345116. [PMID: 36164390 PMCID: PMC9509256 DOI: 10.1155/2022/7345116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/19/2022] [Accepted: 08/12/2022] [Indexed: 11/24/2022] Open
Abstract
Gedan Jiangya decoction (GJD) (aqueous ethanol extract), a traditional Chinese medicine formula which contain six botanical drugs (Uncaria rhynchophylla (Miq.) Miq., Salvia miltiorrhiza Bunge, Pueraria lobata (Willd.) Ohwi, Eucommia ulmoides Oliv., Prunella vulgaris L., and Achyranthes bidentata Blume) was designed to treat hypertension; however, the underlying mechanism of action is unclear. This study aimed to determine the mechanisms of action of GJD in the treatment of hypertension in spontaneously hypertensive rats (SHR). Male SHRs were randomly divided into five groups: GJD doses were low (1.36 g/kg/d), medium (2.72 g/kg/d), and high (5.44 g/kg/d), captopril (13.5 mg/kg/d), and SHR groups, with Wistar-Kyoto rats (WKY) serving as the control. Every rat was gavaged once a day. The ALC-NIBP, a noninvasive blood pressure device, measured systolic (SBP) and diastolic (DBP) blood pressures. Six weeks following treatment, all rats were anesthetized. The blood samples were obtained from the abdominal aorta and then serum isolated to assess endothelin-1 and angiotensin II, interleukin-1beta, interleukin-6, and TNF-alpha. The left ventricular and thoracic aortas were taken for HE staining, immunohistochemistry, RT-qPCR, and western blot examination. Following GJD therapy, SBP and DBP were significantly lowered, as were serum levels of endothelin-1 and angiotensin II. The thickness of the left ventricular and thoracic aorta walls reduced, as did type I collagen, type III collagen, and alpha-SMA expression in the left ventricular and aortic tissues. The GJD treatment significantly reduced serum levels of the inflammatory markers interleukin-1beta, interleukin-6, and TNF-alpha. Furthermore, interleukin-1 beta, interleukin-6, TNF-alpha, TAK1, and NF-κB/p65 levels were significantly reduced in left ventricular and aortic tissues, whereas IkB-alpha levels were significantly elevated. GJD has a dose-dependent effect on all parameters. In conclusion, GJD has been shown to lower blood pressure, improve cardiovascular remodeling, and reduce inflammation via regulating NF-κB in SHRs.
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19
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Chan GHH, Chan E, Kwok CTK, Leung GPH, Lee SMY, Seto SW. The role of p53 in the alternation of vascular functions. Front Pharmacol 2022; 13:981152. [PMID: 36147350 PMCID: PMC9485942 DOI: 10.3389/fphar.2022.981152] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/17/2022] [Indexed: 11/13/2022] Open
Abstract
Ageing is a risk factor for many degenerative diseases. Cardiovascular diseases (CVDs) are usually big burdens for elderly, caregivers and the health system. During the aging process, normal functions of vascular cells and tissue progressively lost and eventually develop vascular diseases. Endothelial dysfunction, reduced bioavailability of endothelium-derived nitric oxide are usual phenomena observed in patients with cardiovascular diseases. Myriad of studies have been done to investigate to delay the vascular dysfunction or improve the vascular function to prolong the aging process. Tumor suppressor gene p53, also a transcription factor, act as a gatekeeper to regulate a number of genes to maintain normal cell function including but not limited to cell proliferation, cell apoptosis. p53 also crosstalk with other key transcription factors like hypoxia-inducible factor 1 alpha that contribute to the progression of cardiovascular diseases. Therefore, in recent three decades, p53 has drawn scientists’ attention on its effects in vascular function. Though the role of tumor suppressor gene p53 is still not clear in vascular function, it is found to play regulatory roles and may involve in vascular remodeling, atherosclerosis or pulmonary hypertension. p53 may have a divergent role in endothelial and vascular muscle cells in those conditions. In this review, we describe the different effects of p53 in cardiovascular physiology. Further studies on the effects of endothelial cell-specific p53 deficiency on atherosclerotic plaque formation in common animal models are required before the therapeutic potential can be realized.
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Affiliation(s)
- Gabriel Hoi-Huen Chan
- Division of Science, Engineering and Health Studies, College of Professional and Continuing Education, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Enoch Chan
- School of Clinical Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Carsten Tsun-Ka Kwok
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - George Pak-Heng Leung
- Department of Pharmacology and Pharmacy, The University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Simon Ming-Yuen Lee
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, China
| | - Sai-Wang Seto
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
- Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
- NICM Health Research Institute, Western Sydney University, Penrith, NSW, Australia
- *Correspondence: Sai-Wang Seto,
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Elevated Vascular Sympathetic Neurotransmission and Remodelling Is a Common Feature in a Rat Model of Foetal Programming of Hypertension and SHR. Biomedicines 2022; 10:biomedicines10081902. [PMID: 36009448 PMCID: PMC9405620 DOI: 10.3390/biomedicines10081902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/01/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
Hypertension is of unknown aetiology, with sympathetic nervous system hyperactivation being one of the possible contributors. Hypertension may have a developmental origin, owing to the exposure to adverse factors during the intrauterine period. Our hypothesis is that sympathetic hyperinnervation may be implicated in hypertension of developmental origins, being this is a common feature with essential hypertension. Two-animal models were used: spontaneously hypertensive rats (SHR-model of essential hypertension) and offspring from dams exposed to undernutrition (MUN-model of developmental hypertension), with their respective controls. In adult males, we assessed systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), sympathetic nerve function (3H-tritium release), sympathetic innervation (immunohistochemistry) and vascular remodelling (histology). MUN showed higher SBP/DBP, but not HR, while SHR exhibited higher SBP/DBP/HR. Regarding the mesenteric arteries, MUN and SHR showed reduced lumen, increased media and adventitial thickness and increased wall/lumen and connective tissue compared to respective controls. Regarding sympathetic nerve activation, MUN and SHR showed higher tritium release compared to controls. Total tritium tissue/tyrosine hydroxylase detection was higher in SHR and MUN adventitia arteries compared to respective controls. In conclusion, sympathetic hyperinnervation may be one of the contributors to vascular remodelling and hypertension in rats exposed to undernutrition during intrauterine life, which is a common feature with spontaneous hypertension.
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Lv J, Li X, Wu H, Li J, Luan B, Li Y, Li Y, Yang D, Wen H. Icariside II Restores Vascular Smooth Muscle Cell Contractile Phenotype by Enhancing the Focal Adhesion Signaling Pathway in the Rat Vascular Remodeling Model. Front Pharmacol 2022; 13:897615. [PMID: 35770073 PMCID: PMC9234455 DOI: 10.3389/fphar.2022.897615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/03/2022] [Indexed: 11/13/2022] Open
Abstract
Vascular smooth muscle cell (VSMC) phenotypic transition represents the fundamental pathophysiological alteration in the vascular remodeling process during the initiation and progression of cardiovascular diseases. Recent studies have revealed that Icariside II (ICS-II), a flavonol glycoside derived from the traditional Chinese medicine Herba Epimedii, exhibited therapeutic effects in various cardiovascular diseases. However, the therapeutic efficacy and underlying mechanisms of ICS-II regarding VSMC phenotypic transition were unknown. In this study, we investigated the therapeutic effects of ICS-Ⅱ on vascular remodeling with a rat’s balloon injury model in vivo. The label-free proteomic analysis was further implemented to identify the differentially expressed proteins (DEPs) after ICS-II intervention. Gene ontology and the pathway enrichment analysis were performed based on DEPs. Moreover, platelet-derived growth factor (PDGF-BB)-induced primary rat VSMC was implemented to verify the restoration effects of ICS-II on the VSMC contractile phenotype. Results showed that ICS-II could effectively attenuate the vascular remodeling process, promote SMA-α protein expression, and inhibit OPN expression in vivo. The proteomic analysis identified 145 differentially expressed proteins after ICS-II intervention. Further, the bioinformatics analysis indicated that the focal adhesion signaling pathway was enriched in the ICS-II group. In vitro studies showed that ICS-II suppressed VSMC proliferation and migration, and promoted VSMC contractile phenotype by modulating the focal adhesion signaling pathway. Taken together, our results suggest that ICS-II attenuates the vascular remodeling process and restores the VSMC contractile phenotype by promoting the focal adhesion pathway.
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Affiliation(s)
- Junyuan Lv
- Breast and Thyroid Surgery, Department of General Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xintong Li
- Department of Vascular Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hongyu Wu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Jiayang Li
- Drug Clinical Trial Institution, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Boyang Luan
- Department of Trauma Center, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yiqi Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Yeli Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Danli Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Hao Wen
- Department of Trauma Center, The First Affiliated Hospital of China Medical University, Shenyang, China
- *Correspondence: Hao Wen,
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22
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Garba MS, Bouderbala S. Olive cake reduces blood pressure, oxidative stress, aortic endothelial dysfunction and vascular remodeling, in dexamethasone-induced hypertensive rats. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2022. [DOI: 10.3233/mnm-220001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND/AIM: Hypertension is a global public health problem and a leading cause of cardiovascular morbidity and mortality. In this paper, we study the effect of olive cake (OC) on blood pressure, endothelial dysfunction, redox status and vascular remodeling in dexamethasone-induced hypertensive (HT) rats. METHODS: HT rats were divided into two groups fed standard diet supplemented (HT-OC) or not (HT) with OC at 7.5% for 28 days. A control (C) was submitted to standard diet for the same experimental period. RESULTS: Systolic, diastolic and mean blood pressures were higher in the HT vs C and decreased in HT-OC vs HT. Aortic nitric oxide value was decreased in the HT vs the C and increased in HT-OC vs HT. Aortic lipid and protein oxidation products were higher in the HT than C and lower in the HT-OC vs HT. Aortic antioxidant enzymes activities were reduced in HT than control and increased in the HT-OC vs HT. The aortic wall thickness, medial cross-sectional area, media to lumen ratio and the number of VSMCs were higher in the HT and the OC has regressed vascular redemptions. CONCLUSION: In hypertensive rats, OC may alleviate blood pressure and arterial remodeling by suppressing oxidative stress, increasing antioxidant activity, improving endothelial function, preventing smooth muscle proliferation and thickening of the tunica media.
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Affiliation(s)
- Mansourou Samba Garba
- Laboratoire de Nutrition Clinique et Métabolique, Département de Biologie, Faculté des Sciences de la Nature et de la Vie. Université Oran1 Ahmed Ben Bella, Oran, Algérie
| | - Sherazede Bouderbala
- Laboratoire de Nutrition Clinique et Métabolique, Département de Biologie, Faculté des Sciences de la Nature et de la Vie. Université Oran1 Ahmed Ben Bella, Oran, Algérie
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23
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Kostov K, Blazhev A. Changes in Serum Levels of Matrix Metalloproteinase-1 and Tissue Inhibitor of Metalloproteinases-1 in Patients with Essential Hypertension. Bioengineering (Basel) 2022; 9:bioengineering9030119. [PMID: 35324807 PMCID: PMC8945798 DOI: 10.3390/bioengineering9030119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 03/06/2022] [Accepted: 03/11/2022] [Indexed: 01/11/2023] Open
Abstract
Hypertension (HTN) is a leading risk factor for cardiovascular (CV) disease. Matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) are thought to be actively involved in the remodeling of the CV extracellular matrix (ECM) during hypertensive damage. Therefore, in this study, we aimed to investigate serum levels of MMP-1 and TIMP-1 in patients with essential HTN and compare them with those of normotensive individuals. We measured serum concentrations of MMP-1 and TIMP-1 in 60 patients with HTN and 20 healthy controls using an ELISA. The obtained results showed that in patients with HTN, the mean levels of MMP-1 (1.82 ± 0.9 ng/mL) were significantly higher (p = 0.03) than the mean levels in the control group (1.19 ± 0.7 ng/mL). The levels of TIMP-1 in patients with essential HTN (0.44 ± 0.1 ng/mL) were also significantly higher (p = 0.005) than those in the control group (0.33 ± 0.1 ng/mL). In HTN, elevated serum MMP-1 levels may be associated with increased collagen degradation in the CV ECM, whereas elevated TIMP-1 levels may favor its accumulation and the development of pathological remodeling and fibrosis of the heart and arterial vessels.
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Affiliation(s)
- Krasimir Kostov
- Department of Pathophysiology, Medical University-Pleven, 5800 Pleven, Bulgaria
- Correspondence:
| | - Alexander Blazhev
- Department of Biology, Medical University-Pleven, 5800 Pleven, Bulgaria;
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24
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Tao J, Cao X, Yu B, Qu A. Vascular Stem/Progenitor Cells in Vessel Injury and Repair. Front Cardiovasc Med 2022; 9:845070. [PMID: 35224067 PMCID: PMC8866648 DOI: 10.3389/fcvm.2022.845070] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/17/2022] [Indexed: 11/13/2022] Open
Abstract
Vascular repair upon vessel injury is essential for the maintenance of arterial homeostasis and function. Stem/progenitor cells were demonstrated to play a crucial role in regeneration and replenishment of damaged vascular cells during vascular repair. Previous studies revealed that myeloid stem/progenitor cells were the main sources of tissue regeneration after vascular injury. However, accumulating evidences from developing lineage tracing studies indicate that various populations of vessel-resident stem/progenitor cells play specific roles in different process of vessel injury and repair. In response to shear stress, inflammation, or other risk factors-induced vascular injury, these vascular stem/progenitor cells can be activated and consequently differentiate into different types of vascular wall cells to participate in vascular repair. In this review, mechanisms that contribute to stem/progenitor cell differentiation and vascular repair are described. Targeting these mechanisms has potential to improve outcome of diseases that are characterized by vascular injury, such as atherosclerosis, hypertension, restenosis, and aortic aneurysm/dissection. Future studies on potential stem cell-based therapy are also highlighted.
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Affiliation(s)
- Jiaping Tao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- The Key Laboratory of Cardiovascular Remodeling-Related Diseases, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Metabolic Disorder-Related Cardiovascular Diseases, Beijing, China
| | - Xuejie Cao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- The Key Laboratory of Cardiovascular Remodeling-Related Diseases, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Metabolic Disorder-Related Cardiovascular Diseases, Beijing, China
| | - Baoqi Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- The Key Laboratory of Cardiovascular Remodeling-Related Diseases, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Metabolic Disorder-Related Cardiovascular Diseases, Beijing, China
- *Correspondence: Baoqi Yu
| | - Aijuan Qu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- The Key Laboratory of Cardiovascular Remodeling-Related Diseases, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Metabolic Disorder-Related Cardiovascular Diseases, Beijing, China
- Aijuan Qu
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25
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Choy M, Xue R, Wu Y, Fan W, Dong Y, Liu C. Role of N6-methyladenosine Modification in Cardiac Remodeling. Front Cardiovasc Med 2022; 9:774627. [PMID: 35224032 PMCID: PMC8866307 DOI: 10.3389/fcvm.2022.774627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 01/17/2022] [Indexed: 11/25/2022] Open
Abstract
Cardiac remodeling is the critical process in heart failure due to many cardiovascular diseases including myocardial infarction, hypertension, cardiovascular disease and cardiomyopathy. However, treatments for heart failure focusing on cardiac remodeling show relatively limited effectiveness. In recent decades, epitranscriptomic modifications were found abundantly present throughout the progression of cardiac remodeling, and numerous types of biochemical modifications were identified. m6A modification is the methylation of the adenosine base at the nitrogen-6 position, and dysregulation of m6A modification has been implicated in a wide range of diseases. However, function of m6A modifications still remain largely unknown in cardiac diseases, especially cardiac remodeling. LncRNAs are also shown to play a vital role in the pathophysiology of cardiac remodeling and heart failure. The crosstalk between lncRNAs and m6A modification provides a novel prospective for exploring possible regulatory mechanism and therapeutic targets of cardiac remodeling. This review summarizes the role of m6A modification in cardiac remodeling in the current researches.
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Affiliation(s)
- ManTing Choy
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- National Health Commission (NHC) Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Ruicong Xue
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- National Health Commission (NHC) Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Yuzhong Wu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- National Health Commission (NHC) Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Wendong Fan
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- National Health Commission (NHC) Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Yugang Dong
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- National Health Commission (NHC) Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Chen Liu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- National Health Commission (NHC) Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Chen Liu
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26
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Garner KL, Bowdridge EC, Griffith JA, DeVallance E, Seman MG, Engels KJ, Groth CP, Goldsmith WT, Wix K, Batchelor TP, Nurkiewicz TR. Maternal Nanomaterial Inhalation Exposure: Critical Gestational Period in the Uterine Microcirculation is Angiotensin II Dependent. Cardiovasc Toxicol 2022; 22:167-180. [PMID: 35066857 PMCID: PMC9013006 DOI: 10.1007/s12012-021-09712-8] [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: 10/07/2021] [Accepted: 12/07/2021] [Indexed: 11/03/2022]
Abstract
Maternal inhalation exposure to engineered nanomaterials (ENM) has been associated with microvascular dysfunction and adverse cardiovascular responses. Pregnancy requires coordinated vascular adaptation and growth that are imperative for survival. Key events in pregnancy hallmark distinct periods of gestation such as implantation, spiral artery remodeling, placentation, and trophoblast invasion. Angiotensin II (Ang II) is a critical vasoactive mediator responsible for adaptations and is implicated in the pathology of preeclampsia. If perturbations occur during gestation, such as those caused by ENM inhalation exposure, then maternal-fetal health consequences may occur. Our study aimed to identify the period of gestation in which maternal microvascular functional and fetal health are most vulnerable. Additionally, we wanted to determine if Ang II sensitivity and receptor density is altered due to exposure. Dams were exposed to ENM aerosols (nano-titanium dioxide) during three gestational windows: early (EE, gestational day (GD) 2-6), mid (ME, GD 8-12) or late (LE, GD 15-19). Within the EE group dry pup mass decreased by 16.3% and uterine radial artery wall to lumen ratio (WLR) increased by 25.9%. Uterine radial artery response to Ang II sensitivity increased by 40.5% in the EE group. Ang II receptor density was altered in the EE and LE group with decreased levels of AT2R. We conclude that early gestational maternal inhalation exposures resulted in altered vascular anatomy and physiology. Exposure during this time-period results in altered vascular reactivity and changes to uterine radial artery WLR, leading to decreased perfusion to the fetus and resulting in lower pup mass.
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Affiliation(s)
- Krista L Garner
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Elizabeth C Bowdridge
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Julie A Griffith
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Evan DeVallance
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Madison G Seman
- Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV, USA
| | - Kevin J Engels
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
| | - Caroline P Groth
- Department of Epidemiology and Biostatistics, West Virginia University School of Public Health, Morgantown, WV, USA
| | - William T Goldsmith
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Kim Wix
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
| | - Thomas P Batchelor
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA
| | - Timothy R Nurkiewicz
- Department of Physiology and Pharmacology, West Virginia University School of Medicine, Morgantown, WV, USA.
- Center for Inhalation Toxicology (iTOX), West Virginia University School of Medicine, Morgantown, WV, USA.
- Department of Physiology and Pharmacology, Robert C. Byrd Health Sciences Center, West Virginia University, 64 Medical Center Drive, Morgantown, WV, 26506-9229, USA.
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27
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Cortese K, Tagliatti E, Gagliani MC, Frascio M, Zarcone D, Raposio E. Ultrastructural imaging reveals vascular remodeling in migraine patients. Histochem Cell Biol 2022; 157:459-465. [DOI: 10.1007/s00418-021-02066-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2021] [Indexed: 11/30/2022]
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28
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Takizawa Y, Song Y, Tani T, Yoshioka T, Takahashi K, Abe T, Ro-Mase T, Ishiko S, Sakai J, Minamide K, Akiba M, Tatsukawa T, Azuma N, Yoshida A. Retinal Blood Velocity Waveform Characteristics With Aging and Arterial Stiffening in Hypertensive and Normotensive Subjects. Transl Vis Sci Technol 2021; 10:25. [PMID: 34792557 PMCID: PMC8606851 DOI: 10.1167/tvst.10.13.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose We aimed to explore the velocity waveform characteristics of the retinal artery associated with age and the cardio-ankle vascular index (CAVI) as a conventional arterial stiffness marker by applying the Doppler optical coherence tomography (DOCT) flowmeter. Methods In this cross-sectional study, DOCT flowmeter imaging was performed in 66 participants aged 21 to 83 years (17 men, 49 women) with no history of eye diseases and no systemic diseases, except for hypertension. Retinal blood velocity waveform was analyzed where several parameters in time (upstroke time, T1, T2, T3, and T4) and area under the waveform (area elevation, area declination, A1, A2, A3, and A4) were extracted. Systolic blood pressure–adjusted Pearson's coefficients were calculated to determine the correlations of each parameter with age or CAVI. Results Corrected upstroke time (UTc) was the waveform parameter most positively correlated with age (r = 0.497, P < 0.001). Area declination was the waveform parameter most negatively correlated with age (r = −0.682, P < 0.001) and CAVI (r = −0.601, P < 0.001). Conclusions We extracted the waveform parameters associated with the risks of arterial stiffening. The velocity waveform analysis of the retinal artery with DOCT flowmeter potentially could become a new method for arterial stiffness identification. Translational Relevance DOCT flowmeter could evaluate arterial stiffening in a different way from the conventional method of measuring arterial stiffening using pressure waveform. Because the DOCT flowmeter can easily, quickly, and noninvasively provide a retinal blood velocity waveform, this system could be useful as a routine medical examination for arterial stiffening.
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Affiliation(s)
- Yoshitaka Takizawa
- Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
| | - Youngseok Song
- Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
| | - Tomofumi Tani
- Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
| | - Takafumi Yoshioka
- Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
| | - Kengo Takahashi
- Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
| | - Tsubasa Abe
- Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
| | - Tomoko Ro-Mase
- Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
| | - Satoshi Ishiko
- Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
| | | | | | | | - Takamitsu Tatsukawa
- Department of Vascular Surgery, Asahikawa Medical University, Asahikawa, Japan
| | - Nobuyoshi Azuma
- Department of Vascular Surgery, Asahikawa Medical University, Asahikawa, Japan
| | - Akitoshi Yoshida
- Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan
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Miyaoka Y, Okada T, Tomiyama H, Morikawa A, Rinno S, Kato M, Tsujimoto R, Suzuki R, China R, Nagai M, Nagaoka Y, Nagao T, Kanno Y. Structural changes in renal arterioles are closely associated with central hemodynamic parameters in patients with renal disease. Hypertens Res 2021; 44:1113-1121. [PMID: 33859396 DOI: 10.1038/s41440-021-00656-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/10/2021] [Indexed: 02/06/2023]
Abstract
Although central hemodynamics are known to be closely associated with microvascular damage, their association with lesions in the small renal arteries has not yet been fully clarified. We focused on arterioles in renal biopsy specimens and analyzed whether their structural changes were associated with noninvasive vascular function parameters, including central blood pressure (BP) and brachial-ankle pulse wave velocity (baPWV). Forty-four nondiabetic patients (18-50 years of age) with preserved renal function underwent renal biopsy. Wall thickening of arterioles was analyzed based on the media/diameter ratio, and hyalinosis was analyzed by semiquantitative grading. Associations of these indexes (arteriolar wall remodeling grade index (RG index) and arteriolar hyalinosis index (Hyl index)) with clinical variables were analyzed. Multiple regression analyses demonstrated that the RG index was significantly associated with central systolic BP (β = 0.97, p = 0.009), serum cystatin C-based estimated glomerular filtration rate (β = -0.36, p = 0.04), and high-density lipoprotein cholesterol levels (β = -0.37, p = 0.02). The Hyl index was significantly associated with baPWV (β = 0.75, p = 0.01). Our results indicate that aortic stiffness and abnormal central hemodynamics are closely associated with renal microvascular damage in young to middle-aged, nondiabetic kidney disease patients with preserved renal function.
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Affiliation(s)
| | - Tomonari Okada
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | | | - Atsuko Morikawa
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Sho Rinno
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Miho Kato
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Ryuji Tsujimoto
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Rie Suzuki
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Rieko China
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Miho Nagai
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Yume Nagaoka
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
| | - Yoshihiko Kanno
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
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High Na + Salt Diet and Remodeling of Vascular Smooth Muscle and Endothelial Cells. Biomedicines 2021; 9:biomedicines9080883. [PMID: 34440087 PMCID: PMC8389691 DOI: 10.3390/biomedicines9080883] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 12/12/2022] Open
Abstract
Our knowledge on essential hypertension is vast, and its treatment is well known. Not all hypertensives are salt-sensitive. The available evidence suggests that even normotensive individuals are at high cardiovascular risk and lower survival rate, as blood pressure eventually rises later in life with a high salt diet. In addition, little is known about high sodium (Na+) salt diet-sensitive hypertension. There is no doubt that direct and indirect Na+ transporters, such as the Na/Ca exchanger and the Na/H exchanger, and the Na/K pump could be implicated in the development of high salt-induced hypertension in humans. These mechanisms could be involved following the destruction of the cell membrane glycocalyx and changes in vascular endothelial and smooth muscle cells membranes’ permeability and osmolarity. Thus, it is vital to determine the membrane and intracellular mechanisms implicated in this type of hypertension and its treatment.
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TIFA protein expression is associated with pulmonary arterial hypertension. Sci Rep 2021; 11:14140. [PMID: 34238983 PMCID: PMC8266829 DOI: 10.1038/s41598-021-93582-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 06/07/2021] [Indexed: 11/24/2022] Open
Abstract
Tumor necrosis factor receptor-associated factor-interacting protein with a forkhead-associated domain (TIFA), a key regulator of inflammation, may be involved in the pathogenesis of pulmonary arterial hypertension (PAH). A total of 48 PAH patients (age 50.1 ± 13.1 years, 22.9% men), 25 hypertensive subjects, and 26 healthy controls were enrolled. TIFA protein expression in peripheral blood mononuclear cells (PBMCs) and plasma interleukin (IL)-1β and tumor necrosis factor (TNF)-α were measured. Pulmonary arterial hemodynamics were derived from right heart catheterization. PAH patients had the highest expression of TIFA, TNF-α, and IL-1β. TIFA protein expression was significantly associated with IL-1β (r = 0.94; P < 0.001), TNF-α (r = 0.93; P < 0.001), mean pulmonary artery pressure (r = 0.41; P = 0.006), and pulmonary vascular resistance (r = 0.41; P = 0.007). TIFA protein expression could independently predict the presence of PAH (odds ratio [95% confidence interval per-0.1 standard deviation]: 1.72 [1.37–2.16]; P < 0.001) and outperformed echocardiographic estimation. Ex vivo silencing of TIFA protein expression in PBMCs led to the suppression of the cellular expression of IL-1β and TNF-α. IL-1β and TNF-α mediated 80.4% and 56.6% of the causal relationship between TIFA and PAH, respectively, supporting the idea that TIFA protein is involved in the pathogenesis of PAH.
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Setyaningsih WAW, Arfian N, Fitriawan AS, Yuniartha R, Sari DCR. Ethanolic Extract of Centella asiatica Treatment in the Early Stage of Hyperglycemia Condition Inhibits Glomerular Injury and Vascular Remodeling in Diabetic Rat Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:6671130. [PMID: 34326888 PMCID: PMC8277496 DOI: 10.1155/2021/6671130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 03/31/2021] [Accepted: 06/08/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND Diabetes mellitus (DM) is marked by oxidative stress, inflammation, and vascular dysfunction that caused diabetic nephropathy that resulted in end-stage renal disease (ESRD). Vascular dysfunction is characterized by an imbalance in vasoconstrictor and vasodilator agents which underlies the mechanism of vascular injury in DM. Additionally, diminished podocytes correlate with the severity of kidney injury. Podocyturia often precedes proteinuria in several kidney diseases, including diabetic kidney disease. Centella asiatica (CeA) is known as an anti-inflammatory and antioxidant and has neuroprotective effects. This research aimed to investigate the potential effect of CeA to inhibit glomerular injury and vascular remodeling in DM. METHODS The DM rat model was induced through intraperitoneal injection of streptozotocin 60 mg/kg body weight (BW), and then rats were divided into 1-month DM (DM1, n = 5), 2-month DM (DM2, n = 5), early DM concurrent with CeA treatment for 2 months (DMC2, n = 5), and 1-month DM treated with CeA for 1-month (DM1C1, n = 5). The CeA (400 mg/kg BW) was given daily via oral gavage. The control group (Control, n = 5) was maintained for 2 months. Finally, rats were euthanized and kidneys were harvested to assess vascular remodeling using Sirius Red staining and the mRNA expression of superoxide dismutase, podocytes marker, ACE2, eNOS, and ppET-1 using RT-PCR. RESULTS The DM groups demonstrated significant elevation of glucose level, glomerulosclerosis, and proteinuria. A significant reduction of SOD1 and SOD3 promotes the downregulation of nephrin and upregulation of TRPC6 mRNA expressions in rat glomerular kidney. Besides, this condition enhanced ppET-1 and inhibited eNOS and ACE2 mRNA expressions that lead to the development of vascular remodeling marked by an increase of wall thickness, and lumen wall area ratio (LWAR). Treatment of CeA, especially the DMC2 group, attenuated glomerular injury and showed the reversal of induced conditions. CONCLUSIONS Centella asiatica treatment at the early stage of diabetes mellitus ameliorates glomerulosclerosis and vascular injury via increasing antioxidant enzymes.
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Affiliation(s)
- Wiwit A W Setyaningsih
- Department of Anatomy, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Nur Arfian
- Department of Anatomy, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Akbar S Fitriawan
- Department of Nursing, Faculty of Health Sciences, Universitas Respati Yogyakarta, Yogyakarta 55282, Indonesia
| | - Ratih Yuniartha
- Department of Anatomy, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Dwi C R Sari
- Department of Anatomy, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
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Cellular Crosstalk between Endothelial and Smooth Muscle Cells in Vascular Wall Remodeling. Int J Mol Sci 2021; 22:ijms22147284. [PMID: 34298897 PMCID: PMC8306829 DOI: 10.3390/ijms22147284] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/25/2021] [Accepted: 07/01/2021] [Indexed: 12/24/2022] Open
Abstract
Pathological vascular wall remodeling refers to the structural and functional changes of the vessel wall that occur in response to injury that eventually leads to cardiovascular disease (CVD). Vessel wall are composed of two major primary cells types, endothelial cells (EC) and vascular smooth muscle cells (VSMCs). The physiological communications between these two cell types (EC–VSMCs) are crucial in the development of the vasculature and in the homeostasis of mature vessels. Moreover, aberrant EC–VSMCs communication has been associated to the promotor of various disease states including vascular wall remodeling. Paracrine regulations by bioactive molecules, communication via direct contact (junctions) or information transfer via extracellular vesicles or extracellular matrix are main crosstalk mechanisms. Identification of the nature of this EC–VSMCs crosstalk may offer strategies to develop new insights for prevention and treatment of disease that curse with vascular remodeling. Here, we will review the molecular mechanisms underlying the interplay between EC and VSMCs. Additionally, we highlight the potential applicable methodologies of the co-culture systems to identify cellular and molecular mechanisms involved in pathological vascular wall remodeling, opening questions about the future research directions.
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Lapi D, Di Maro M, Serao N, Chiurazzi M, Varanini M, Sabatino L, Scuri R, Colantuoni A, Guida B. Geometric Features of the Pial Arteriolar Networks in Spontaneous Hypertensive Rats: A Crucial Aspect Underlying the Blood Flow Regulation. Front Physiol 2021; 12:664683. [PMID: 34295257 PMCID: PMC8289703 DOI: 10.3389/fphys.2021.664683] [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: 02/05/2021] [Accepted: 05/10/2021] [Indexed: 11/20/2022] Open
Abstract
Background Several studies indicate that hypertension causes major changes in the structure of the vessel wall by affecting the regulation of blood supply to the tissues. Recently, it has been observed that capillary blood flow is also considerably influenced by the structural arrangement of the microvascular networks that undergo rarefaction (reduction of the perfused vessel number). Therefore, this study aimed to assess the geometric arrangements of the pial arteriolar networks and the arteriolar rhythmic diameter changes in spontaneously hypertensive rats (SHRs). Methods Fluorescence microscopy was utilized to observe in vivo the pial microcirculation through a closed cranial window. Pial arterioles were classified according to Strahler’s method. The arteriolar rhythmic diameter changes were evaluated by a generalization short-time Fourier transform. Result Young SHRs showed four orders of vessels while the adult ones only three orders. The diameter, length, and branching number obeyed Horton’s law; therefore, the vessels were distributed in a fractal manner. Larger arterioles showed more asymmetrical branches than did the smaller ones in young SHRs, while in adult SHRs smaller vessels presented asymmetrical branchings. In adult SHRs, there was a significant reduction in the cross-sectional area compared with the young SHRs: this implies an increase in peripheral resistance. Young and adult age-matched normotensive rats did not show significant alterations in the geometric arteriolar arrangement with advancing age, both had four orders of arteriolar vessels, and the peripheral resistance did not change significantly. Conversely, the frequency components evaluated in arteriolar rhythmic diameter changes of young and adult SHRs showed significant differences because of a reduction in the frequency components related to endothelial activity detected in adult SHRs. Conclusion In conclusion, hypertension progressively causes changes in the microarchitecture of the arteriolar networks with a smaller number of vessels and consequent reduced conductivity, characteristic of rarefaction. This was accompanied by a reduction in the formation and release of independent and dependent – endothelial nitric oxide components regulating arterial vasomotion.
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Affiliation(s)
- Dominga Lapi
- Department of Biology, University of Pisa, Pisa, Italy
| | - Martina Di Maro
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Nicola Serao
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Martina Chiurazzi
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Maurizio Varanini
- Institute of Clinical Physiology, National Council of Research (CNR), Pisa, Italy
| | - Lina Sabatino
- Department of Sciences and Technologies, Sannio University, Benevento, Italy
| | - Rossana Scuri
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Antonio Colantuoni
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
| | - Bruna Guida
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
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Guebel DV, Torres NV, Acebes Á. Mapping the transcriptomic changes of endothelial compartment in human hippocampus across aging and mild cognitive impairment. Biol Open 2021; 10:bio057950. [PMID: 34184731 PMCID: PMC8181899 DOI: 10.1242/bio.057950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 04/07/2021] [Indexed: 12/17/2022] Open
Abstract
Compromise of the vascular system has important consequences on cognitive abilities and neurodegeneration. The identification of the main molecular signatures present in the blood vessels of human hippocampus could provide the basis to understand and tackle these pathologies. As direct vascular experimentation in hippocampus is problematic, we achieved this information by computationally disaggregating publicly available whole microarrays data of human hippocampal homogenates. Three conditions were analyzed: 'Young Adults', 'Aged', and 'aged with Mild Cognitive Impairment' (MCI). The genes identified were contrasted against two independent data-sets. Here we show that the endothelial cells from the Younger Group appeared in an 'activated stage'. In turn, in the Aged Group, the endothelial cells showed a significant loss of response to shear stress, changes in cell adhesion molecules, increased inflammation, brain-insulin resistance, lipidic alterations, and changes in the extracellular matrix. Some specific changes in the MCI group were also detected. Noticeably, in this study the features arisen from the Aged Group (high tortuosity, increased bifurcations, and smooth muscle proliferation), pose the need for further experimental verification to discern between the occurrence of arteriogenesis and/or vascular remodeling by capillary arterialization. This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Daniel V. Guebel
- Program Agustín de Betancourt, Universidad de La Laguna, Tenerife 38200, Spain
- Department of Biochemistry, Cellular Biology and Genetics, Institute of Biomedical Technologies, Universidad de La Laguna, Tenerife 38200, Spain
| | - Néstor V. Torres
- Department of Biochemistry, Cellular Biology and Genetics, Institute of Biomedical Technologies, Universidad de La Laguna, Tenerife 38200, Spain
| | - Ángel Acebes
- Department of Basic Medical Sciences, Institute of Biomedical Technologies, University of La Laguna, Tenerife 38200, Spain
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Juli C, Heryaman H, Nazir A, Ang ET, Defi IR, Gamayani U, Atik N. The Lymphocyte Depletion in Patients with Acute Ischemic Stroke Associated with Poor Neurologic Outcome. Int J Gen Med 2021; 14:1843-1851. [PMID: 34017192 PMCID: PMC8131088 DOI: 10.2147/ijgm.s308325] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/15/2021] [Indexed: 01/01/2023] Open
Abstract
Purpose Inflammation plays an important role and is involved in all stages of acute ischemic stroke. One of these stages involves the recruitment of leukocytes from the peripheral circulation into the ischemic tissue. Lymphocytes as a subtype of leukocytes are important mediators and can become a predictor of neurological outcome. Several studies have been conducted regarding the correlation between differential lymphocyte counts and acute ischemic stroke. Most of these studies analyzed lymphocyte ratio to other leukocyte subtypes such as neutrophils and monocytes. This study specifically observed the role of lymphocytes as an indicator of the inflammatory response in patients with acute ischemic stroke. This study aimed to observe the correlation among risk factors, infarct location, leukocyte counts, lymphocyte value and neurologic output in acute ischemic stroke patients. Patients and Methods We observed and analyzed 193 patients’ data from medical record which met the inclusion and exclusion criteria with a diagnosis of acute ischemic stroke at the Department of Neurology of Dr. Hasan Sadikin General Bandung. Data were then analysed using appropriate statistical tests. Results Most patients have more than one risk factor with a leukocyte count of less than 10,000 cell/mm3. Infarct was mostly located in subcortical area (basal ganglia), with moderate average NIHSS values at admission and at discharge. The number of lymphocytes decreased in the subject group with more than 10,000 cell/mm3 leukocytes. Subsequently, data were analyzed using Spearman’s test and there was a correlation between NIHSS on admission and lymphocyte depletion. Conclusion The lymphocyte depletion in patients with leukocytosis is a predictor of poor NIHSS.
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Affiliation(s)
- Cep Juli
- Doctoral Program, Faculty of Medicine, Padjadjaran University, Bandung, Indonesia.,Department of Neurology, Dr. Hasan Sadikin General Hospital, Faculty of Medicine, Padjadjaran University, Bandung, Indonesia
| | - Henhen Heryaman
- Doctoral Program, Faculty of Medicine, Padjadjaran University, Bandung, Indonesia
| | - Arnengsih Nazir
- Doctoral Program, Faculty of Medicine, Padjadjaran University, Bandung, Indonesia
| | - Eng-Tat Ang
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Irma Ruslina Defi
- Department of Physical Medicine and Rehabilitation, Dr. Hasan Sadikin General Hospital, Faculty of Medicine, Padjadjaran University, Bandung, Indonesia
| | - Uni Gamayani
- Department of Neurology, Dr. Hasan Sadikin General Hospital, Faculty of Medicine, Padjadjaran University, Bandung, Indonesia
| | - Nur Atik
- Department of Biomedical Sciences, Faculty of Medicine, Padjadjaran University, Bandung, Indonesia
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Prado AF, Batista RIM, Tanus-Santos JE, Gerlach RF. Matrix Metalloproteinases and Arterial Hypertension: Role of Oxidative Stress and Nitric Oxide in Vascular Functional and Structural Alterations. Biomolecules 2021; 11:biom11040585. [PMID: 33923477 PMCID: PMC8074048 DOI: 10.3390/biom11040585] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/08/2021] [Accepted: 04/13/2021] [Indexed: 12/11/2022] Open
Abstract
Various pathophysiological mechanisms have been implicated in hypertension, but those resulting in vascular dysfunction and remodeling are critical and may help to identify critical pharmacological targets. This mini-review article focuses on central mechanisms contributing to the vascular dysfunction and remodeling of hypertension, increased oxidative stress and impaired nitric oxide (NO) bioavailability, which enhance vascular matrix metalloproteinase (MMP) activity. The relationship between NO, MMP and oxidative stress culminating in the vascular alterations of hypertension is examined. While the alterations of hypertension are not fully attributable to these pathophysiological mechanisms, there is strong evidence that such mechanisms play critical roles in increasing vascular MMP expression and activity, thus resulting in abnormal degradation of extracellular matrix components, receptors, peptides, and intracellular proteins involved in the regulation of vascular function and structure. Imbalanced vascular MMP activity promotes vasoconstriction and impairs vasodilation, stimulating vascular smooth muscle cells (VSMC) to switch from contractile to synthetic phenotypes, thus facilitating cell growth or migration, which is associated with the deposition of extracellular matrix components. Finally, the protective effects of MMP inhibitors, antioxidants and drugs that enhance vascular NO activity are briefly discussed. Newly emerging therapies that address these essential mechanisms may offer significant advantages to prevent vascular remodeling in hypertensive patients.
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Affiliation(s)
- Alejandro F. Prado
- Laboratory of Structural Biology, Institute of Biological Sciences, Federal University of Para, Belem, PA 66075-110, Brazil;
| | - Rose I. M. Batista
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP 14049-900, Brazil; (R.I.M.B.); (J.E.T.-S.)
| | - Jose E. Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP 14049-900, Brazil; (R.I.M.B.); (J.E.T.-S.)
| | - Raquel F. Gerlach
- Department of Morphology, Physiology and Basic Pathology, Faculty of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP 14040-904, Brazil
- Correspondence: ; Tel.: +55-16-33154065
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Lee JH. Relationship between Hypertension and the Declining Renal Function in Korean Adults. KOREAN JOURNAL OF CLINICAL LABORATORY SCIENCE 2021. [DOI: 10.15324/kjcls.2021.53.1.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Jun Ho Lee
- Department of Clinical Laboratory Science, Wonkwang Health Science University, Iksan, Korea
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Abstract
Niches for tissue-resident mesenchymal stem cells (MSCs) have been identified in many adult tissues. In particular, MSCs residing in the vascular stem cell niche came into focus: the so-called vascular wall-resident MSCs (VW-MSCs) were, based upon their anatomic location, (1) distributed throughout the adult organism, and (2) supposed to be the first line cells which could be addressed in response to a pathologic trigger acting on or in close vicinity to the vascular system. Like tissue-resident MSCs in general, VW-MSC contribute to organ integrity and harbor the capacity to suppress inflammation and promote repair during normal vessel homeostasis, although resident MSCs present in the healthy situation of an individual seems not to bear sufficient for protection or repair following injury. In contrast, injury affected MSCs could contribute to disease induction and progression. A detailed understanding of the molecular repertoire as well as of the signaling pathways controlling stem cell fate of VW-MSCs is prerequisite to understand how (1) endogenous VW-MSCs contribute to normal vessel homeostasis as well as diseases that include the vascular system, (2) a potential on-site manipulation of these cells directly within their endogenous niche could be used for therapeutically benefits, and (3) isolated and therapeutically applied VW-MSCs in terms of exogenous MSCs with superior repair capabilities might be logically more efficient to address vascular diseases than MSCs derived from other tissues. This chapter describes a straightforward protocol for the improved isolation of human VW-MSCs.
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Affiliation(s)
- Diana Klein
- Institute for Cell Biology (Cancer Research), Medical Faculty, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
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40
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Truong V, Jain A, Anand-Srivastava MB, Srivastava AK. Angiotensin II-induced histone deacetylase 5 phosphorylation, nuclear export, and Egr-1 expression are mediated by Akt pathway in A10 vascular smooth muscle cells. Am J Physiol Heart Circ Physiol 2021; 320:H1543-H1554. [PMID: 33606583 DOI: 10.1152/ajpheart.00683.2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Angiotensin II (ANG II) regulates an array of physiological and pathological responses in vascular smooth muscle cells (VSMCs) by activating ERK1/2 and phosphoinositide 3-kinase (PI3K)/Akt signaling pathways. We have demonstrated that ANG II and insulin-like growth factor-1 (IGF-1) induce the expression of early growth response protein-1 (Egr-1), a zinc finger transcription factor, which regulates the transcription of cell cycle regulatory genes network in VSMCs. We have reported that IGF-1 induces the phosphorylation of histone deacetylase 5 (HDAC5), which has been implicated in the expression of genes linked to VSMC growth and hypertrophy, via a PI3K/Akt-dependent pathway in VSMCs. However, the involvement of PI3K/Akt pathways in ANG II-induced HDAC5 phosphorylation and the contribution of HDAC5 in Egr-1 expression and hypertrophy in VSMCs remain unexplored. Here, we show that pharmacological blockade of the PI3K/Akt pathway either by wortmannin/SC66 or siRNA-induced silencing of Akt attenuated ANG II-induced HDAC5 phosphorylation and its nuclear export. Moreover, SC66 or Akt knockdown also suppressed ANG II-induced Egr-1 expression. Furthermore, pharmacological inhibition of HDAC5 by MC1568 or TMP-195 or knockdown of HDAC5 and the blockade of the nuclear export of HDAC5 by leptomycin B or KPT-330 significantly reduced ANG II-induced Egr-1 expression. In addition, depletion of either HDAC5 or Egr-1 by siRNA attenuated VSMC hypertrophy in response to ANG II. In summary, our results demonstrate that ANG II-induced HDAC5 phosphorylation and its nuclear exclusion are mediated by PI3K/Akt pathway and HDAC5 is an upstream regulator of Egr-1 expression and hypertrophy in VSMCs.NEW & NOTEWORTHY ANG II-induced histone deacetylase 5 (HDAC5) phosphorylation and nuclear export occurs via the phosphoinositide 3-kinase/Akt pathway. Akt, through HDAC5, regulates ANG II-induced expression of early growth response protein-1 (Egr-1), which is a transcription factor linked with vascular dysfunction. Inhibition of HDAC5 exclusion by nuclear export inhibitors suppresses ANG II-induced Egr-1 expression. HDAC5 is an upstream mediator of Egr-1 expression and cell hypertrophy in response to ANG II in vascular smooth muscle cells.
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Affiliation(s)
- Vanessa Truong
- Laboratory of Cellular Signaling, Montreal Diabetes Research Center and Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Ashish Jain
- Laboratory of Cellular Signaling, Montreal Diabetes Research Center and Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Madhu B Anand-Srivastava
- Department of Pharmacology and Physiology, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Ashok K Srivastava
- Laboratory of Cellular Signaling, Montreal Diabetes Research Center and Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada.,Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
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Tan PPS, Hall D, Chilian WM, Chia YC, Mohd Zain S, Lim HM, Kumar DN, Ching SM, Low TY, Md Noh MF, Pung YF. Exosomal microRNAs in the development of essential hypertension and its potential as biomarkers. Am J Physiol Heart Circ Physiol 2021; 320:H1486-H1497. [PMID: 33577433 DOI: 10.1152/ajpheart.00888.2020] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
MicroRNAs (miRNAs) are small regulatory molecules that are involved in posttranscriptional modifications. These noncoding RNAs are usually ferried by extracellular carriers such as exosomes or other protein and lipid carriers inside a range of body fluids including plasma and urine. Due to their ability to withstand harsh external conditions, exosomal miRNAs possess enormous potential as noninvasive disease biomarkers for, notably hypertension, whereby exosomal miRNAs have been implicated in its pathophysiological processes. More importantly, alterations in the microenvironment as a result of disease progression can induce active and selective loading of miRNAs into exosomes. In this paper, we first review the mechanisms of miRNA loading into exosomes, followed by the roles of exosomal miRNAs in the development of hypertension, and the potentials of exosomal miRNAs as biomarkers in comparison with other free circulating miRNAs. Finally, challenges and future research surrounding exosomal miRNAs will also be discussed. This review will aid in the understanding of noninvasive biomarkers for the early diagnosis of hypertension and for probing therapeutic efficacy.
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Affiliation(s)
- Paulina Pei Suu Tan
- Division of Biomedical Science, University of Nottingham Malaysia, Selangor, Malaysia
| | - Deborah Hall
- University of Nottingham Malaysia, Selangor, Malaysia
| | - William M Chilian
- Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, Ohio
| | - Yook Chin Chia
- Department of Medical Sciences, Sunway University, Selangor, Malaysia.,Department of Primary Care Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Shamsul Mohd Zain
- Department of Pharmacology, University of Malaya, Kuala Lumpur, Malaysia
| | - Hooi Min Lim
- Department of Primary Care Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Devaraj Navin Kumar
- Department of Family Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | - Siew Mooi Ching
- Department of Family Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | - Teck Yew Low
- UKM Medical Molecular Biology Institute, UKM Medical Molecular Biology Institute, UKM Medical Centre, Kuala Lumpur, Malaysia
| | - Mohd Fairulnizal Md Noh
- Nutrition, Metabolism and Cardiovascular Research Centre, Institute for Medical Research, National Institutes of Health, Selangor, Malaysia
| | - Yuh-Fen Pung
- Division of Biomedical Science, University of Nottingham Malaysia, Selangor, Malaysia
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Transcriptome analysis of arterial and venous circulating miRNAs during hypertension. Sci Rep 2021; 11:3469. [PMID: 33568719 PMCID: PMC7875986 DOI: 10.1038/s41598-021-82979-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 01/04/2021] [Indexed: 11/18/2022] Open
Abstract
Most current circulating miRNA biomarkers are derived from peripheral venous blood, whereas miRNA deregulation in arterial blood in disease conditions has been largely ignored. To explore whether peripheral venous blood miRNAs could represent a bona fide specific miRNA deregulation pattern, we selected hypertension, a disease that is particularly associated with vessels, as the model. Circulating miRNA profiles of arterial and venous blood from spontaneously hypertensive (SHR) rats and their corresponding controls (i.e., WKY rats) were investigated by next-generation miRNA sequencing. Little miRNAs were observed between arterial and venous circulating miRNAs in WKY rats. Interestingly, this number was enhanced in SHR hypertensive rats. Bioinformatical analysis of disease association, enriched target genes and the regulatory transcription factors of these differentially expressed miRNAs implied a potential functional link with cardiovascular disease-related functions. Comparisons between arterial and venous miRNAs in hypertension-versus-control conditions also revealed prominent disease association of circulating miRNAs and their target genes in arteries but not in veins. Moreover, a young non-hypertensive animal model in SHR background (i.e. JSHR) was used as a second control for SHR. Additional transcriptomic analysis and droplet digital PCR validation of arterial and venous deregulated miRNAs among SHR and its two controls (WKY, JSHR) revealed a noticeable consensus of artery-deregulated miRNAs in hypertension and two novel arterial circulating signatures (miR-455-3p and miR-140-3p) of hypertension. These results suggest the necessity of re-evaluating the efficacy of certain venous miRNAs identified in previous studies as potential biomarkers in cardiovascular diseases or a wider disease spectrum.
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Potential Role of Melatonin as an Adjuvant for Atherosclerotic Carotid Arterial Stenosis. Molecules 2021; 26:molecules26040811. [PMID: 33557283 PMCID: PMC7914857 DOI: 10.3390/molecules26040811] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/27/2021] [Accepted: 02/02/2021] [Indexed: 12/23/2022] Open
Abstract
Carotid artery stenosis (CAS) is an atherosclerotic disease characterized by a narrowing of the artery lumen and a high risk of ischemic stroke. Risk factors of atherosclerosis, including smoking, hypertension, hyperglycemia, hyperlipidemia, aging, and disrupted circadian rhythm, may potentiate atherosclerosis in the carotid artery and further reduce the arterial lumen. Ischemic stroke due to severe CAS and cerebral ischemic/reperfusion (I/R) injury after the revascularization of CAS also adversely affect clinical outcomes. Melatonin is a pluripotent agent with potent anti-inflammatory, anti-oxidative, and neuroprotective properties. Although there is a shortage of direct clinical evidence demonstrating the benefits of melatonin in CAS patients, previous studies have shown that melatonin may be beneficial for patients with CAS in terms of reducing endothelial damage, stabilizing arterial plaque, mitigating the harm from CAS-related ischemic stroke and cerebral I/R injury, and alleviating the adverse effects of the related risk factors. Additional pre-clinical and clinical are required to confirm this speculation.
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44
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Gao Y, Ren C, Li X, Yu W, Li S, Li H, Wang Y, Li D, Ren M, Ji X. Ischemic Conditioning Ameliorated Hypertension and Vascular Remodeling of Spontaneously Hypertensive Rat via Inflammatory Regulation. Aging Dis 2021; 12:116-131. [PMID: 33532132 PMCID: PMC7801289 DOI: 10.14336/ad.2020.0320] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 03/27/2020] [Indexed: 01/03/2023] Open
Abstract
Vascular remodeling is an initial step in the development of hypertension. Limb remote ischemic conditioning (LRIC) is a physiological treatment that induces endogenous protective effect during acute ischemic injury. However, the impact of long-term LRIC on hypertension, a chronic disease, is unknown. In this study, we aimed to investigate the LRIC effect on blood pressure and vascular remodeling in spontaneously hypertensive rat (SHR) model and patients with prehypertension and early-stage hypertension. LRIC of rats was performed once a day for 6-weeks. Blood pressure, vascular remodeling (cross-sectional area, extracellular deposition, and smooth muscle cell area), inflammation (inflammatory factors, and inflammatory cells) were compared among normotensive Wistar-Kyoto rats (WKY), WKY RIC group, SHR control group, and SHR RIC. Long-term LRCI treatment (twice a day for 4-weeks) was performed on patients with prehypertension or early-stage hypertension. Blood pressure and pulse wave velocity (PWV) were analyzed before and after LRIC treatment. LRIC treatment decreased blood pressure in SHR (n = 9-10). LRIC ameliorated vascular remodeling by decreasing cross-sectional area, suppressing deposition of the extracellular matrix, and hypertrophy of smooth muscle cell in conduit artery and small resistance artery (n = 7). LRIC decreased proinflammatory factors while increasing the anti-inflammatory factors in the circulation (n = 5). LRIC decreased circulating monocyte and natural killer T-cell levels (n = 5). Furthermore, LRIC treatment decreased blood pressure and improved vascular stiffness in patients (n = 20). In conclusion, long term LRIC could decrease blood pressure and ameliorate vascular remodeling via inflammation regulation. LRIC could be a preventive treatment for people with blood pressure elevation or prehypertension.
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Affiliation(s)
- Yu Gao
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 10053, China.
- Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical, Beijing, 10053, China.
| | - Changhong Ren
- Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical, Beijing, 10053, China.
- Beijing municipal geriatric medical research center, Beijing, 10053, China.
| | - Xiaohua Li
- Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical, Beijing, 10053, China.
- Beijing municipal geriatric medical research center, Beijing, 10053, China.
| | - Wantong Yu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 10053, China.
| | - Sijie Li
- Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical, Beijing, 10053, China.
- Beijing municipal geriatric medical research center, Beijing, 10053, China.
| | - Haiyan Li
- Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical, Beijing, 10053, China.
| | - Yan Wang
- Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical, Beijing, 10053, China.
| | - Dong Li
- Peking University Care Health Management Center, Beijing, 100080, China.
| | - Ming Ren
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 10053, China.
| | - Xunming Ji
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 10053, China.
- Department of Neurosurgery Xuanwu Hospital, Capital Medical, Beijing 100053, China.
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45
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Zhou W, Xi D, Shi Y, Wang L, Zhong H, Huang Z, Liu Y, Tang Y, Lu N, Wang Y, Zhang Z, Pei J, Tang N, He F. MicroRNA‑1929‑3p participates in murine cytomegalovirus‑induced hypertensive vascular remodeling through Ednra/NLRP3 inflammasome activation. Int J Mol Med 2021; 47:719-731. [PMID: 33416142 PMCID: PMC7797461 DOI: 10.3892/ijmm.2020.4829] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) play an important role in the development of vascular remodeling in essential hypertension (EH) by mediating the effects of human cytomegalovirus (HCMV) on the vascular system. Therefore, the aim of the present study was to investigate the effects of murine cytomegalovirus (MCMV) infection on blood pressure and vascular function in mice, in order to elucidate the role of miR‑1929‑3p in this process. For model development, 7‑month‑old C57BL/6J mice were infected with the Smith strain of MCMV, and MCMV DNA, IgG and IgM were detected. Subsequently, blood pressure was measured via the carotid artery, and the morphological changes of the aorta were evaluated by hematoxylin and eosin and Masson's trichrome staining. miR‑1929‑3p transfection was performed using an adeno‑associated virus packaged vector and the changes in vascular structure were then observed. The levels of nitric oxide (NO) and endothelial NO synthase were also assessed with colorimetry. Vascular remodeling and expression of NLRP3 inflammasome pathway‑related proteins were detected by immunohistochemistry and western blotting. Endothelin‑1 (ET‑1), interleukin (IL)‑1β and IL‑18 were assayed by ELISA. The results revealed that MCMV infection increased the blood pressure, promoted vascular remodeling, caused endothelial cell injury, and downregulated miR‑1929‑3p. However, these effects were alleviated by miR‑1929‑3p overexpression, which downregulated endothelin A receptor (Ednra) and NLRP3 inflammasome, as well as endothelial injury‑ and vascular remodeling‑related genes. Taken together, the findings of the present study indicated that overexpression of miR‑1929‑3p may improve MCMV‑induced vascular remodeling, possibly via the deactivation of the NLRP3 inflammasome by ET‑1/Ednra.
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Affiliation(s)
- Wei Zhou
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
| | - Dongmei Xi
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
| | - Yunzhong Shi
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
| | - Lamei Wang
- Centre of Medical Functional Experiments, Medical College of Shihezi University
| | - Hua Zhong
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
| | - Zhen Huang
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
| | - Yongmin Liu
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
| | - Yan Tang
- Department of Geriatrics, The First Affiliated Hospital of Medical College of Shihezi University
| | - Ning Lu
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
| | - Yongjia Wang
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
| | - Zhengyu Zhang
- Department of Clinical Medicine, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Jiaxin Pei
- Department of Clinical Medicine, Medical College of Shihezi University, Shihezi, Xinjiang 832002, P.R. China
| | - Na Tang
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
| | - Fang He
- Department of Pathophysiology, Key Laboratory of Education Ministry of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University
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46
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Najjar RS, Turner CG, Wong BJ, Feresin RG. Berry-Derived Polyphenols in Cardiovascular Pathologies: Mechanisms of Disease and the Role of Diet and Sex. Nutrients 2021; 13:nu13020387. [PMID: 33513742 PMCID: PMC7911141 DOI: 10.3390/nu13020387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular disease (CVD) prevalence, pathogenesis, and manifestation is differentially influenced by biological sex. Berry polyphenols target several signaling pathways pertinent to CVD development, including inflammation, oxidative stress, and cardiac and vascular remodeling, and there are innate differences in these pathways that also vary by sex. There is limited research systematically investigating sex differences in berry polyphenol effects on these pathways, but there are fundamental findings at this time that suggest a sex-specific effect. This review will detail mechanisms within these pathological pathways, how they differ by sex, and how they may be individually targeted by berry polyphenols in a sex-specific manner. Because of the substantial polyphenolic profile of berries, berry consumption represents a promising interventional tool in the treatment and prevention of CVD in both sexes, but the mechanisms in which they function within each sex may vary.
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Affiliation(s)
- Rami S. Najjar
- Department of Nutrition, Georgia State University, Atlanta, GA 30302, USA;
| | - Casey G. Turner
- Department of Kinesiology and Health, Georgia State University, Atlanta, GA 30302, USA; (C.G.T.); (B.J.W.)
| | - Brett J. Wong
- Department of Kinesiology and Health, Georgia State University, Atlanta, GA 30302, USA; (C.G.T.); (B.J.W.)
| | - Rafaela G. Feresin
- Department of Nutrition, Georgia State University, Atlanta, GA 30302, USA;
- Correspondence:
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47
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Gao J, Liu Q, Zhao L, Yu J, Wang S, Cao T, Gao X, Wei Y. Identification and Antihypertension Study of Novel Angiotensin I-Converting Enzyme Inhibitory Peptides from the Skirt of Chlamys farreri Fermented with Bacillus natto. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:146-158. [PMID: 33356234 DOI: 10.1021/acs.jafc.0c04232] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The aim of this study was to isolate the angiotensin I-converting enzyme (ACE) inhibitory peptides from the skirt of Chlamys farreri fermented with Bacillus natto and to explore the antihypertension effect through in vivo studies. ACE inhibitory peptides were purified from the fermentation mixture by ultrafiltration, gel filtration chromatography, and reversed-phase high-performance liquid chromatography sequentially. The amino acids' sequence of the five novel ACE inhibitory peptides were identified by liquid chromatography-tandem mass spectrometry. Animal experiments demonstrated that the novel ACE inhibitory peptides significantly reduced the blood pressure in spontaneously hypertensive rats after a single or long-time treatment. Potential mechanisms were explored, and the results indicated that the novel peptides could regulate the renal renin-angiotensin system, improve vascular remodeling, inhibit myocardial fibrosis, and rebalance the gut microbial dysbiosis. Our results suggest that the fermentation products of the Chlamys farreri skirt by B. natto are potential sources of active peptides processing antihypertension activities.
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Affiliation(s)
- Jie Gao
- College of Life Sciences, Qingdao University, Qingdao 266071, China
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Qi Liu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Ling Zhao
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Jia Yu
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Shanglong Wang
- Chenland Nutritionals, Incorporated, Invine, California 92614, United States
| | - Tingfeng Cao
- Chenland Nutritionals, Incorporated, Invine, California 92614, United States
| | - Xiang Gao
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Yuxi Wei
- College of Life Sciences, Qingdao University, Qingdao 266071, China
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48
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Villar-Fincheira P, Sanhueza-Olivares F, Norambuena-Soto I, Cancino-Arenas N, Hernandez-Vargas F, Troncoso R, Gabrielli L, Chiong M. Role of Interleukin-6 in Vascular Health and Disease. Front Mol Biosci 2021; 8:641734. [PMID: 33786327 PMCID: PMC8004548 DOI: 10.3389/fmolb.2021.641734] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/01/2021] [Indexed: 01/08/2023] Open
Abstract
IL-6 is usually described as a pleiotropic cytokine produced in response to tissue injury or infection. As a pro-inflammatory cytokine, IL-6 activates innate and adaptative immune responses. IL-6 is released in the innate immune response by leukocytes as well as stromal cells upon pattern recognition receptor activation. IL-6 then recruits immune cells and triggers B and T cell response. Dysregulated IL-6 activity is associated with pathologies involving chronic inflammation and autoimmunity, including atherosclerosis. However, IL-6 is also produced and released under beneficial conditions, such as exercise, where IL-6 is associated with the anti-inflammatory and metabolic effects coupled with physical adaptation to intense training. Exercise-associated IL-6 acts on adipose tissue to induce lipogenesis and on arteries to induce adaptative vascular remodeling. These divergent actions could be explained by complex signaling networks. Classical IL-6 signaling involves a membrane-bound IL-6 receptor and glycoprotein 130 (gp130), while trans-signaling relies on a soluble version of IL-6R (sIL-6R) and membrane-bound gp130. Trans-signaling, but not the classical pathway, is regulated by soluble gp130. In this review, we discuss the similarities and differences in IL-6 cytokine and myokine signaling to explain the differential and opposite effects of this protein during inflammation and exercise, with a special focus on the vascular system.
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Affiliation(s)
- Paulina Villar-Fincheira
- Advanced Center for Chronic Diseases & CEMC, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
| | - Fernanda Sanhueza-Olivares
- Advanced Center for Chronic Diseases & CEMC, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
| | - Ignacio Norambuena-Soto
- Advanced Center for Chronic Diseases & CEMC, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
| | - Nicole Cancino-Arenas
- Advanced Center for Chronic Diseases & CEMC, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
| | - Felipe Hernandez-Vargas
- Advanced Center for Chronic Diseases & CEMC, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
| | - Rodrigo Troncoso
- Laboratorio de Investigación en Nutrición y Actividad Física (LABINAF), Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago, Chile
| | - Luigi Gabrielli
- Advanced Center for Chronic Diseases, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- *Correspondence: Luigi Gabrielli, ; Mario Chiong,
| | - Mario Chiong
- Advanced Center for Chronic Diseases & CEMC, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
- *Correspondence: Luigi Gabrielli, ; Mario Chiong,
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49
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Bisogni V, Cerasari A, Pucci G, Vaudo G. Matrix Metalloproteinases and Hypertension-Mediated Organ Damage: Current Insights. Integr Blood Press Control 2020; 13:157-169. [PMID: 33173330 PMCID: PMC7646380 DOI: 10.2147/ibpc.s223341] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/12/2020] [Indexed: 12/16/2022] Open
Abstract
Matrix metalloproteinases (MMPs) are important extracellular enzymes involved in many physiological and pathological processes. Changes in the activity and concentration of specific MMPs, as well as the unbalance with their inhibitors (tissue inhibitors of metalloproteinases – TIMPs), have been described as a part of the pathogenic cascade promoted by arterial hypertension. MMPs are able to degrade various protein substrates in the extracellular matrix, to influence endothelial cells function, vascular smooth muscle cells migration, proliferation and contraction, and to stimulate cardiomyocytes changes. All these processes can be activated by chronically elevated blood pressure values. Animal and human studies demonstrated the key function of MMPs in the pathogenesis of hypertension-mediated vascular, cardiac, and renal damage, besides age and blood pressure values. Thus, the role of MMPs as biomarkers of hypertension-mediated organ damage and potential pharmacological treatment targets to prevent further cardiovascular and renal complications in hypertensive population is increasingly supported. In this review, we aimed to describe the main scientific evidence about the behavior of MMPs in the development of vascular, cardiac, and renal damage in hypertensive patients.
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Affiliation(s)
- Valeria Bisogni
- Unit of Internal Medicine, Terni University Hospital, Terni, Italy
| | - Alberto Cerasari
- Unit of Internal Medicine, Terni University Hospital, Terni, Italy.,Department of Medicine, University of Perugia, Perugia, Italy
| | - Giacomo Pucci
- Unit of Internal Medicine, Terni University Hospital, Terni, Italy.,Department of Medicine, University of Perugia, Perugia, Italy
| | - Gaetano Vaudo
- Unit of Internal Medicine, Terni University Hospital, Terni, Italy.,Department of Medicine, University of Perugia, Perugia, Italy
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50
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Lamb FS, Choi H, Miller MR, Stark RJ. TNFα and Reactive Oxygen Signaling in Vascular Smooth Muscle Cells in Hypertension and Atherosclerosis. Am J Hypertens 2020; 33:902-913. [PMID: 32498083 DOI: 10.1093/ajh/hpaa089] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 12/16/2022] Open
Abstract
Hypertension and atherosclerosis, the predecessors of stroke and myocardial infarction, are chronic vascular inflammatory reactions. Tumor necrosis factor alpha (TNFα), the "master" proinflammatory cytokine, contributes to both the initiation and maintenance of vascular inflammation. TNFα induces reactive oxygen species (ROS) production which drives the redox reactions that constitute "ROS signaling." However, these ROS may also cause oxidative stress which contributes to vascular dysfunction. Mice lacking TNFα or its receptors are protected against both acute and chronic cardiovascular injury. Humans suffering from TNFα-driven inflammatory conditions such as rheumatoid arthritis and psoriasis are at increased cardiovascular risk. When treated with highly specific biologic agents that target TNFα signaling (Etanercept, etc.) they display marked reductions in that risk. The ability of TNFα to induce endothelial dysfunction, often the first step in a progression toward serious vasculopathy, is well recognized and has been reviewed elsewhere. However, TNFα also has profound effects on vascular smooth muscle cells (VSMCs) including a fundamental change from a contractile to a secretory phenotype. This "phenotypic switching" promotes proliferation and production of extracellular matrix proteins which are associated with medial hypertrophy. Additionally, it promotes lipid storage and enhanced motility, changes that support the contribution of VSMCs to neointima and atherosclerotic plaque formation. This review focuses on the role of TNFα in driving the inflammatory changes in VSMC biology that contribute to cardiovascular disease. Special attention is given to the mechanisms by which TNFα promotes ROS production at specific subcellular locations, and the contribution of these ROS to TNFα signaling.
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Affiliation(s)
- Fred S Lamb
- Division of Pediatric Critical Care, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Hyehun Choi
- Division of Pediatric Critical Care, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Michael R Miller
- Division of Pediatric Critical Care, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Ryan J Stark
- Division of Pediatric Critical Care, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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