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Zampieri GM, Nunes PR, Abbade JF, Dias CA, Sandrim VC. Vascular contraction of umbilical arteries of pregnant women with preeclampsia. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2024; 46:e-rbgo2. [PMID: 38765503 PMCID: PMC11075432 DOI: 10.61622/rbgo/2024ao02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/21/2023] [Indexed: 05/22/2024] Open
Abstract
Objective Potassium channels have an important role in the vascular adaptation during pregnancy and a reduction in the expression of adenosine triphosphate-sensitive potassium channels (Katp) has been linked to preeclampsia. Activation of Katp induces vasodilation; however, no previous study has been conducted to evaluate the effects of the inhibition of these channels in the contractility of preeclamptic arteries. Glibenclamide is an oral antihyperglycemic agent that inhibits Katp and has been widely used in vascular studies. Methods To investigate the effects of the inhibition of Katp, umbilical arteries of preeclamptic women and women with healthy pregnancies were assessed by vascular contractility experiments, in the presence or absence of glibenclamide. The umbilical arteries were challenged with cumulative concentrations of potassium chloride (KCl) and serotonin. Results There were no differences between the groups concerning the maternal age and gestational age of the patients. The percentage of smokers, caucasians and primiparae per group was also similar. On the other hand, blood pressure parameters were elevated in the preeclamptic group. In addition, the preeclamptic group presented a significantly higher body mass index. The newborns of both groups presented similar APGAR scores and weights. Conclusion In the presence of glibenclamide, there was an increase in the KCl-induced contractions only in vessels from the PE group, showing a possible involvement of these channels in the disorder.
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Affiliation(s)
- Gabriela Morelli Zampieri
- Universidade Estadual Paulista "Julio de Mesquita Filho"BotucatuSPBrazilUniversidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brazil.
| | - Priscila Rezeck Nunes
- Universidade Estadual Paulista "Julio de Mesquita Filho"BotucatuSPBrazilUniversidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brazil.
| | - Joelcio Francisco Abbade
- Universidade Estadual Paulista "Julio de Mesquita Filho"BotucatuSPBrazilUniversidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brazil.
| | - Carlos Alan Dias
- Universidade Estadual Paulista "Julio de Mesquita Filho"BotucatuSPBrazilUniversidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brazil.
| | - Valeria Cristina Sandrim
- Universidade Estadual Paulista "Julio de Mesquita Filho"BotucatuSPBrazilUniversidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brazil.
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Sengul M, Karadas B, Acar-Sahan S, Simsek F, Horoz E, Özok IC, Temiz T. Functional and Histological Changes in Umbilical Artery and Myometrium Isolated from IUGR Complicated Pregnancies. Fetal Pediatr Pathol 2023; 42:845-859. [PMID: 37578058 DOI: 10.1080/15513815.2023.2245892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/15/2023]
Abstract
Objective: To investigate the relaxation responses mediated by L-type Ca2+ channels and big-conductance Ca2+-activated K+ (BKCa) channels and histological changes in the human umbilical artery (HUA) and myometrium smooth muscle isolated from pregnancies complicated with intrauterine growth restriction (IUGR).Methods: The muscle reactivity and the histology of the smooth muscle of the HUA and myometrium retrieved from 14 women with IUGR and 14 controls were investigated by the isolated tissue bath and immunohistochemical method.Results: In HUA, the maximum relaxation responses and pD2 values of nifedipine and NS11021 (BKCa channel opener) were significantly increased and significant histopathological changes are observed in the IUGR group.Conclusions: The pathogenesis of IUGR might be associated with the impairment in the functional responses of L-type Ca2+ channels and BKCa channels in HUA smooth muscle. The increased staining of myometrium and UC with HIF-1α in IUGR may indicate apoptosis, histological damage, and impaired fetal growth.
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Affiliation(s)
- Mustafa Sengul
- Department of Obstetrics and Gynecology Izmir, Izmir Katip Celebi University Faculty of Medicine, Turkey
| | - Baris Karadas
- Department of Pharmacology Izmir, Izmir Katip Celebi University Faculty of Medicine, Turkey
| | - Selin Acar-Sahan
- Department of Pharmacology Izmir, Izmir Katip Celebi University Faculty of Medicine, Turkey
| | - Fatma Simsek
- Department of Histology and Embryology Izmir, Izmir Katip Celebi University Faculty of Medicine, Turkey
| | - Ersan Horoz
- Department of Pharmacology Izmir, Izmir Katip Celebi University Faculty of Medicine, Turkey
| | - Işık Cem Özok
- Department of Pharmacology Izmir, Izmir Katip Celebi University Faculty of Medicine, Turkey
| | - Tijen Temiz
- Department of Pharmacology Izmir, Izmir Katip Celebi University Faculty of Medicine, Turkey
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Gajić Bojić M, Đukanović Đ, Marinković S, Jovičić S, Stojiljković MP, Djuric DM, Škrbić R. Methodological challenges in using human umbilical artery as a model for in vitro studies. Exp Physiol 2023; 108:1569-1578. [PMID: 37837634 PMCID: PMC10988505 DOI: 10.1113/ep091374] [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: 06/27/2023] [Accepted: 09/27/2023] [Indexed: 10/16/2023]
Abstract
NEW FINDINGS What is the central question of this study? What are the biggest challenges in performing in vitro studies on isolated human umbilical arteries? What is the main finding and its importance? The protocols presented in this study indicate some potential outcomes important for interpretation of the vascular responsivities of human umbilical arteries and could be useful for planning future in vitro studies with human umbilical arteries. ABSTRACT Human umbilical artery (HUA) preparations are of particular importance for in vitro studies on isolated blood vessels because their sampling is not risky for the patient, and they can provide the closest possible impression of changes related to the uteroplacental circulation during pre-eclampsia. Using organ bath techniques, useful experimental protocols are provided for measuring some pathophysiological phenomena in the vascular responses of HUAs. Several vasoconstrictors (serotonin, prostaglandin F and phenylephrine) and vasodilators (acetylcholine and minoxidil) were seleted for determination of their vasoactivity in HUAs. The role of L-type voltage-operated calcium channels and different types of potassium channels (KATP , BKCa and KV ) were assessed, as was the impact of homocysteine. Serotonin was confirmed to be the most potent vasoconstrictor, while acetylcholine and phenylephrine caused variability in the relaxation and contraction response of HUA, respectively. The observed increase in serotonin-induced contraction and a decrease in minoxidil-induced relaxation in the presence of homocysteine suggested its procontractile effect on HUA preparations. Using selective blockers, it was determined that KATP and KV channels participate in the minoxidil-induced relaxation, while L-type voltage-dependent Ca2+ channels play an important role in the serotonin-induced contraction. The presented protocols reveal some of the methodological challenges related to HUA preparations and indicate potential outcomes in interpreting the vascular effects of the investigated substances, both in physiological conditions and in the homocysteine-induced pre-eclampsia model.
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Affiliation(s)
- Milica Gajić Bojić
- Centre for Biomedical Research, Faculty of MedicineUniversity of Banja LukaBanja Luka The Republic of SrpskaBosnia and Herzegovina
| | - Đorđe Đukanović
- Centre for Biomedical Research, Faculty of MedicineUniversity of Banja LukaBanja Luka The Republic of SrpskaBosnia and Herzegovina
| | - Sonja Marinković
- Department of PaediatricsUniversity Clinical Centre of the Republic of SrpskaBanja Luka The Republic of SrpskaBosnia and Herzegovina
| | - Sanja Jovičić
- Department of Histology and Embryology, Faculty of MedicineUniversity of Banja LukaBanja Luka The Republic of SrpskaBosnia and Herzegovina
| | - Miloš P. Stojiljković
- Centre for Biomedical Research, Faculty of MedicineUniversity of Banja LukaBanja Luka The Republic of SrpskaBosnia and Herzegovina
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of MedicineUniversity of Banja LukaBanja Luka The Republic of SrpskaBosnia and Herzegovina
| | - Dragan M. Djuric
- Centre for Biomedical Research, Faculty of MedicineUniversity of Banja LukaBanja Luka The Republic of SrpskaBosnia and Herzegovina
- Faculty of Medicine, Institute of Medical Physiology ‘Richard Burian’University of BelgradeBelgradeSerbia
| | - Ranko Škrbić
- Centre for Biomedical Research, Faculty of MedicineUniversity of Banja LukaBanja Luka The Republic of SrpskaBosnia and Herzegovina
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of MedicineUniversity of Banja LukaBanja Luka The Republic of SrpskaBosnia and Herzegovina
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Batista PR, de Alencar Silva A, Mikevely de Sena Bastos C, de Souza Borges A, Dias FJ, Ramon Dos Santos Pereira L, Tavares de Sousa Machado S, de Araújo Delmondes G, Kerntopf MR, Alencar de Menezes IR, Barbosa R. Vasorelaxant effect of (E,E)-farnesol in human umbilical vein ex vivo assays. Chem Biol Interact 2023; 386:110746. [PMID: 37816450 DOI: 10.1016/j.cbi.2023.110746] [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: 01/08/2023] [Revised: 09/01/2023] [Accepted: 09/22/2023] [Indexed: 10/12/2023]
Abstract
(E,E)-farnesol is a sesquiterpene acyclic alcohol produced by bacteria, protozoa, fungi, plants, and animals. The literature describes its applications in food, pharmaceutical, and cosmetic industries, and also in the pharmacological context with a vasorelaxant effect. However, its effects on human umbilical vessels remain poorly investigated. Thus, this study aims to investigate, in a new way, the vasorelaxant effect of (E,E)-farnesol in human umbilical veins (HUV) from healthy donors. Rings obtained from isolated HUV were suspended in an organ bath to record their isometric tension in different experimental sections. (E,E)-farnesol (1 μmol/L to 1 mmol/L) promoted vasorelaxant effect in venous preparations contracted by depolarization (KCl 60 mmol/L) or pharmacological agonism (5-HT 10 μmol/L), with EC50 values of 239.9 μmol/L and 424 μmol/L, respectively. In calcium-free solution, this effect was also observable. (E,E)-farnesol was able to suppress contractions evoked by CaCl2 and BaCl2 suggesting a blockade of voltage-dependent (especially L-type) calcium channels. The vasorelaxant efficacy and potency of (E,E)-farnesol were affected in the presence of tetraethylammonium (1 and 10 mmol/L), glibenclamide (10 μmol/L) and BaCl2 (1 mmol/L) indicating a possible involvement of potassium channels (BKCa, KATP and KIR) in this effect. Our data suggest that (E,E)-farnesol has a promising potential to be applicable as a vasodilator in hypertensive conditions in pregnancy that alter HUV reactivity.
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Affiliation(s)
- Paulo Ricardo Batista
- Biological Chemistry Department, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil; Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil.
| | - Andressa de Alencar Silva
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil; Higher Institute of Biomedical Sciences, State University of Ceará, Fortaleza, 60714-903, Ceará, Brazil.
| | - Carla Mikevely de Sena Bastos
- Biological Chemistry Department, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil; Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil.
| | - Alex de Souza Borges
- Biological Chemistry Department, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil; Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil.
| | - Francisco Junio Dias
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil.
| | - Luiz Ramon Dos Santos Pereira
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil.
| | - Sara Tavares de Sousa Machado
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil.
| | | | - Marta Regina Kerntopf
- Biological Chemistry Department, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil.
| | | | - Roseli Barbosa
- Biological Chemistry Department, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil; Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil.
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Fonseca MI, Lorigo M, Cairrao E. Evaluation of the bisphenol A-induced vascular toxicity on human umbilical artery. ENVIRONMENTAL RESEARCH 2023; 226:115628. [PMID: 36907341 DOI: 10.1016/j.envres.2023.115628] [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: 12/23/2021] [Revised: 02/02/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Bisphenol A (BPA) is one of the most widely used synthetic compound in the manufacture of polycarbonate plastics and epoxy resins. Worryingly, BPA is an endocrine disrupting chemical (EDC) with an estrogenic, androgenic, or anti-androgenic activities. However, the vascular implications of BPA exposome in pregnancy is unclear. In this sense, the present work proposed to understand how BPA exposure impair the vasculature of the pregnant women. To elucidate this, ex vivo studies were performed using human umbilical arteries to explore the acute and chronic effects of BPA. The mode of action of BPA was also explored by analysing the activity (by ex vivo studies) and expression (in vitro studies) analysis of Ca2+ and K+-channels and soluble guanyl cyclase. Moreover, in silico docking simulations were performed to unveil the modes of interactions of BPA with the proteins involved in these signalling pathways. Our study showed that the exposure to BPA may modify the vasorelaxant response of HUA, interfering with NO/sGC/cGMP/PKG pathway by modulation of sGC and activation of BKCa channels. Moreover, our findings suggest that BPA can modulate the HUA reactivity, increasing the L-type Ca2+ Channels (LTCC) activity, a common vascular response observed in hypertensive disorders of pregnancy.
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Affiliation(s)
- Maria Inês Fonseca
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS - UBI, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
| | - Margarida Lorigo
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS - UBI, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal; C4-UBI, Cloud Computing Competence Centre, University of Beira Interior, 6200-501, Covilhã, Portugal.
| | - Elisa Cairrao
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS - UBI, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal; C4-UBI, Cloud Computing Competence Centre, University of Beira Interior, 6200-501, Covilhã, Portugal.
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Batista PR, Silva ADA, de Sena Bastos CM, Rodrigues da Silva RE, Calixto GL, de Morais LP, Delmondes GDA, Kerntopf MR, de Menezes IRA, Barbosa R. Vasodilation promoted by ( E, E)-farnesol involving ion channels in human umbilical arteries. Heliyon 2023; 9:e17328. [PMID: 37441374 PMCID: PMC10333471 DOI: 10.1016/j.heliyon.2023.e17328] [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: 03/16/2023] [Revised: 06/10/2023] [Accepted: 06/14/2023] [Indexed: 07/15/2023] Open
Abstract
Background (E,E)-farnesol is a sesquiterpene alcohol derived from plants and animals that exhibits pharmacological properties in the cardiovascular system. However, its effects on human umbilical vessels remain unknown. Purpose Thus, this study aims to characterize the vasodilatory effect of (E,E)-farnesol in human umbilical arteries (HUA). Study design The tissue is obtained from pregnant women over 18 years of age, normotensive, and without prepartum complications. After collected, the tissue was segmented and dissected to remove Wharton's jelly and obtain the umbilical arteries segments. Methods HUA segments were isolated and sectioned into rings that were subjected to isometric tension recordings in an organ bath. Results (E,E)-farnesol (1 μmol/L to 1 mmol/L) promoted vasodilatory effect in HUA preparations, affecting basal tone, and inhibiting the electromechanical coupling induced by KCl 60 mmol/L with greater potency (EC50 225.3 μmol/L) than the pharmacomechanical coupling induced by 5-HT 10 μmol/L (EC50 363.5 μmol/L). In the absence of extracellular calcium, pharmacomechanical coupling was also abolished, and contractions induced by CaCl2 or BaCl2 were attenuated by (E,E)-farnesol indicating a possible direct inhibition of L-type VOCC as a mechanism of the vasodilatory effect. The vasodilator efficacy of (E,E)-farnesol on reduction of vasocontraction induced by the presence of tetraethylammonium (1 or 10 mmol/L), 4-aminopyridine (1 mmol/L) and glibenclamide (10 μmol/L) suggesting a possible influence of different potassium channels (BKCa, KV and KATP). Conclusion These results suggest that (E,E)-farnesol may be a promising pharmacological candidate for obstetric hypertensive disorders.
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Affiliation(s)
- Paulo Ricardo Batista
- Biological Chemistry Department, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
| | - Andressa de Alencar Silva
- Graduate Program in Physiological Sciences, Higher Institute of Biomedical Sciences, State University of Ceará, Fortaleza, 60714-903, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
| | - Carla Mikevely de Sena Bastos
- Biological Chemistry Department, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
| | - Renata Evaristo Rodrigues da Silva
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
| | - Gabriela Lucena Calixto
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
| | - Luís Pereira de Morais
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
- Biotechnology By the Northeastern Biotechnology Network (RENORBIO), State University of Ceará, Fortaleza, 60714-903, Ceará, Brazil
| | | | - Marta Regina Kerntopf
- Biological Chemistry Department, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
| | | | - Roseli Barbosa
- Biological Chemistry Department, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato, 63105-000, Ceará, Brazil
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Zyrianova T, Zou K, Lopez B, Liao A, Gu C, Olcese R, Schwingshackl A. Activation of Endothelial Large Conductance Potassium Channels Protects against TNF-α-Induced Inflammation. Int J Mol Sci 2023; 24:4087. [PMID: 36835507 PMCID: PMC9961193 DOI: 10.3390/ijms24044087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/30/2023] [Accepted: 02/09/2023] [Indexed: 02/22/2023] Open
Abstract
Elevated TNF-α levels in serum and broncho-alveolar lavage fluid of acute lung injury patients correlate with mortality rates. We hypothesized that pharmacological plasma membrane potential (Em) hyperpolarization protects against TNF-α-induced CCL-2 and IL-6 secretion from human pulmonary endothelial cells through inhibition of inflammatory Ca2+-dependent MAPK pathways. Since the role of Ca2+ influx in TNF-α-mediated inflammation remains poorly understood, we explored the role of L-type voltage-gated Ca2+ (CaV) channels in TNF-α-induced CCL-2 and IL-6 secretion from human pulmonary endothelial cells. The CaV channel blocker, Nifedipine, decreased both CCL-2 and IL-6 secretion, suggesting that a fraction of CaV channels is open at the significantly depolarized resting Em of human microvascular pulmonary endothelial cells (-6 ± 1.9 mV), as shown by whole-cell patch-clamp measurements. To further explore the role of CaV channels in cytokine secretion, we demonstrated that the beneficial effects of Nifedipine could also be achieved by Em hyperpolarization via the pharmacological activation of large conductance K+ (BK) channels with NS1619, which elicited a similar decrease in CCL-2 but not IL-6 secretion. Using functional gene enrichment analysis tools, we predicted and validated that known Ca2+-dependent kinases, JNK-1/2 and p38, are the most likely pathways to mediate the decrease in CCL-2 secretion.
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Affiliation(s)
- Tatiana Zyrianova
- Departments of Pediatrics, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Kathlyn Zou
- Departments of Pediatrics, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Benjamin Lopez
- Departments of Pediatrics, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Andy Liao
- Departments of Pediatrics, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Charles Gu
- Departments of Pediatrics, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Riccardo Olcese
- Departments of Anesthesiology and Perioperative Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
- Departments of Physiology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Andreas Schwingshackl
- Departments of Pediatrics, University of California Los Angeles, Los Angeles, CA 90095, USA
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Karadas B, Acar-Sahan S, Kantarci S, Uysal N, Horoz E, Kaya-Temiz T. Comparison of relaxant effects of nifedipine and NS11021 on isolated umbilical arteries of healthy and preeclamptic pregnant women. Eur J Obstet Gynecol Reprod Biol 2023; 280:168-173. [PMID: 36508854 DOI: 10.1016/j.ejogrb.2022.12.009] [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: 06/09/2022] [Revised: 11/08/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Potassium (K+) channel openers and calcium (Ca2+) channel blockers are currently used to treat acute severe hypertension in pregnancy. We aimed to investigate the vasorelaxant effect of NS11021, a potent and specific big-conductance Ca2+-activated K+ (BKCa) channel activator, and to compare it with the vasorelaxant effect of nifedipine on human umbilical arteries (HUAs) isolated from healthy and preeclamptic pregnants. STUDY DESIGN A total of 29 HUAs were isolated immediately after delivery from 14 healthy and 15 preeclamptic pregnant with severe features. The concentration-dependent relaxation responses were obtained to nifedipine and NS11021 on HUAs precontracted with endothelin-1 (ET-1) (10-8 M) in an isolated tissue bath. RESULTS Both nifedipine and NS11021 caused concentration-dependent relaxation responses in HUAs from healthy and preeclamptic pregnants. While the maximum responses (Emax) and pD2 values of nifedipine did not change significantly in both groups, the Emax and pD2 values of NS11021 were significantly decreased in the preeclampsia group (Emax ± SEM; %75.57 ± 4.53 and %43.75 ± 14.00 and pD2 ± SEM; 6.92 ± 0.26 and 5.24 ± 0.53 respectively, p < 0.05). In addition, the pD2 value of NS11021 was not significantly different from that of nifedipine in the control group, but decreased significantly in the preeclampsia group (pD2 ± SEM 7.1 ± 0.41 and 5.2 ± 0.53, p < 0.05, respectively). CONCLUSIONS Efficacy and potency of NS11021 decreased in HUAs from preeclamptic pregnants. Also, NS11021 is less potent than nifedipine in the preeclampsia group. BKCa channels may have a role in the pathogenesis of preeclampsia, however, further experimental studies are needed to elucidate that.
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Affiliation(s)
- Baris Karadas
- Izmir Katip Celebi University Faculty of Medicine, Department of Pharmacology Izmir, Turkey.
| | - Selin Acar-Sahan
- Izmir Katip Celebi University Faculty of Medicine, Department of Pharmacology Izmir, Turkey.
| | - Sercan Kantarci
- University of Health Sciences Tepecik Training and Research Hospital Department of Obstetrics and Gynecology Izmir, Turkey
| | - Nusret Uysal
- Izmir Katip Celebi University Faculty of Medicine, Department of Pharmacology Izmir, Turkey
| | - Ersan Horoz
- Izmir Katip Celebi University Faculty of Medicine, Department of Pharmacology Izmir, Turkey.
| | - Tijen Kaya-Temiz
- Izmir Katip Celebi University Faculty of Medicine, Department of Pharmacology Izmir, Turkey.
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Borges AS, Bastos CMS, Dantas DM, Milfont CGB, Brito GMH, Pereira-de-Morais L, Delmondes GA, da Silva RER, Kennedy-Feitosa E, Maia FPA, Lima CMG, Bin Emran T, Coutinho HDM, Menezes IRA, Kerntopf MR, Caruso G, Barbosa R. Effect of Lippia alba (Mill.) N.E. Brown Essential Oil on the Human Umbilical Artery. PLANTS (BASEL, SWITZERLAND) 2022; 11:3002. [PMID: 36365458 PMCID: PMC9659075 DOI: 10.3390/plants11213002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Lippia alba is popularly known as lemon balm, with its essential oil (EO) cited for displaying antimicrobial, sedative, and vasorelaxant effects. Yet, its action on isolated human vessels has not been described in the literature. Thus, we evaluated the vasorelaxant effect of essential oil of L. alba (EOLa) on human umbilical arteries (HUA) isolated in organ baths. HUA rings were isolated, subjected to contractions induced by potassium chloride (KCl), serotonin (5-HT), or histamine (HIST) to record the isometric tension, and then treated with EOLa (30-1000 µg/mL). The EOLa showed a more prominent inhibitory effect on the pharmacomechanical coupling contraction via HIST with an EC50 value of 277.1 ± 8.5 µg/mL and maximum relaxant effect at 600 µg/mL. The addition of tetraethylammonium (TEA) or 4-aminopyridine (4-AP) in HUA preparations did not inhibit EOLa total relaxant effect at 1000 µg/mL. In the presence of gliblenclamide (GLI), the oil relaxed the HUA rings by 90.8% at maximum concentration. The EOLa was also investigated for its effects on voltage-operated calcium channels (VOCCs), where the HUA preincubation with this oil at 1000 μg/mL inhibited BaCl2 (0.1-30 mM)-induced contractions. This study demonstrates for the first time that EOla has a vasorelaxant effect on HUA and its particular blockade of VOCCs.
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Affiliation(s)
- Alex S. Borges
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Carla M. S. Bastos
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Debora M. Dantas
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Cícera G. B. Milfont
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Guilherme M. H. Brito
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Luís Pereira-de-Morais
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Gyllyandeson A. Delmondes
- Nursing Collegiate, Petrolina Campus, Federal University of The San Francisco Vale, Petrolina 56304-205, Pernambuco, Brazil
| | - Renata E. R. da Silva
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Emanuel Kennedy-Feitosa
- Health Science Department, Morphophysiopharmacology Laboratory, Federal Rural University of Semiarid, Mossoró 59625-900, Rio Grande do Norte, Brazil
| | | | - Clara M. G. Lima
- Department of Food Science, Federal University of Lavras, Lavras 37200-900, Minas Gerais, Brazil
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Henrique Douglas M. Coutinho
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Irwin Rose A. Menezes
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Marta R. Kerntopf
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
| | - Gianluca Caruso
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Naples, Italy
| | - Roseli Barbosa
- Biological Chemistry Department, Postgraduate Program in Biological Chemistry, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
- Biological Sciences Department, Physiopharmacology of Excitable Cells Laboratory, Pimenta Campus, Regional University of Cariri, Crato 63105-010, Ceará, Brazil
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10
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External Hemin as an Inhibitor of Mitochondrial Large-Conductance Calcium-Activated Potassium Channel Activity. Int J Mol Sci 2022; 23:ijms232113391. [DOI: 10.3390/ijms232113391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/26/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
The mitochondrial large-conductance calcium-activated potassium channel (mitoBKCa) is located in the inner mitochondrial membrane and seems to play a crucial role in cytoprotection. The mitoBKCa channel is regulated by many modulators, including activators, such as calcium ions and inhibitors, such as heme and its oxidized form hemin. Heme/hemin binds to the heme-binding motif (CXXCH) located between two RCK domains present in the mitochondrial matrix. In the present study, we used the patch-clamp technique in the outside-out configuration to record the activity of mitoBKCa channels. This allowed for the application of channel modulators to the intermembrane-space side of the mitoBKCa. We found that hemin applied in this configuration inhibits the activity of mitoBKCa. In addition, we proved that the observed hemin effect is specific and it is not due to its interaction with the inner mitochondrial membrane. Our data suggest the existence of a new potential heme/hemin binding site in the structure of the mitoBKCa channel located on the mitochondrial intermembrane space side, which could constitute a new way for the regulation of mitoBKCa channel activity.
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11
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Zhang X, Yang M, Lv D, Xie Y, Sun Y, Zhang Y, He M, Liu H, Li F, Deng D. Effects of KCa channels on biological behavior of trophoblasts. Open Life Sci 2022; 17:1043-1052. [PMID: 36118166 PMCID: PMC9441684 DOI: 10.1515/biol-2022-0462] [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: 01/16/2022] [Revised: 05/12/2022] [Accepted: 06/14/2022] [Indexed: 11/29/2022] Open
Abstract
The Ca2+-activated potassium (KCa) channels are involved in many cellular functions, but their roles in trophoblasts are unclear. This study aimed to clarify the effects of KCa channels on the biological behavior of trophoblasts. The localization and expression of the three types of KCa channels, including large-conductance KCa channels (BKCa), intermediate-conductance KCa channels (IKCa), and small-conductance KCa channels (SKCa), were detected in human chorionic villi taken from pregnant women between 5 and 8 weeks of gestation (n = 15) and HTR-8/SVneo cells. The effects of KCa channels on proliferation, apoptosis, and migration of HTR-8/SVneo cells were examined by using the activators or inhibitors of KCa channels. Results showed that KCa channels were mainly localized on the membrane and in the cytoplasm of trophoblasts in human chorionic villi and HTR-8/SVneo cells. The proliferation and migration of HTR-8/SVneo cells were inhibited by activating KCa channels. Apoptosis of trophoblasts was promoted through activating BKCa channels but was not affected by neither activating nor inhibiting IKCa and SKCa channels. This study substantiated the abovementioned biological roles of KCa channels in trophoblast cells, which is fundamental to further research on whether dysfunction of KCa channels is involved in the pathogenesis of pregnancy-related complications.
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Affiliation(s)
- Xiaolei Zhang
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Ave, Wuhan, Hubei, China
| | - Meitao Yang
- Department of Gynecology and Obstetrics, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
| | - Dan Lv
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Ave, Wuhan, Hubei, China
| | - Yin Xie
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Ave, Wuhan, Hubei, China
| | - Yanan Sun
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Ave, Wuhan, Hubei, China
| | - Yanling Zhang
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Ave, Wuhan, Hubei, China
| | - Mengzhou He
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Ave, Wuhan, Hubei, China
| | - Haiyi Liu
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Ave, Wuhan, Hubei, China
| | - Fanfan Li
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Ave, Wuhan, Hubei, China
| | - Dongrui Deng
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jiefang Ave, Wuhan, Hubei, China
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Feiteiro J, Rocha SM, Mariana M, Maia CJ, Cairrao E. Vascular Response of Tetrabromobisphenol a in Rat Aorta: Calcium Channels Inhibition and Potassium Channels Activation. TOXICS 2022; 10:529. [PMID: 36136495 PMCID: PMC9503360 DOI: 10.3390/toxics10090529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/02/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Tetrabromobisphenol A (TBBPA) is a flame retardant widely used to reduce flammability. It is an endocrine disruptor, and due to constant human exposure, some concerns have been raised regarding its impact on human health. Studies showed that TBBPA affects oxidative stress, cell proliferation and intracellular calcium levels. However, the vascular consequences of TBBPA exposure are still relatively unexplored. Hence, this work aimed to analyse TBBPA effects on rat aortic smooth muscle and its action mechanisms. Through an ex vivo approach, Wistar rat aortas were used in an organ bath to evaluate the vascular effect of TBBPA (0.01-100 μM). Additionally, TBBPA's mode of action was studied through calcium and potassium channel inhibitors. Resorting to in vitro studies, A7r5 cells were used to analyse L-Type voltage-gated calcium channel (VGCC) activity through the whole-cell configuration of the patch clamp technique, and the mRNA expression of proteins and ion channels involved in vascular contractility. The results showed vasorelaxation of rat aorta induced by TBBPA exposure, involving the inactivation of L-Type VGCC and activation of potassium channels, and the modulation of mRNA expression of L-type calcium and large-conductance calcium 1.1 and the BKCa 1.1 α- and β1 -subunit channels, soluble guanylyl cyclase and protein Kinase G.
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Affiliation(s)
- Joana Feiteiro
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
- FCS-UBI, Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Sandra M. Rocha
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
- FCS-UBI, Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Melissa Mariana
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Cláudio J. Maia
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
- FCS-UBI, Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Elisa Cairrao
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
- FCS-UBI, Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilhã, Portugal
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13
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The antidiabetic drug teneligliptin induces vasodilation via activation of PKG, Kv channels, and SERCA pumps in aortic smooth muscle. Eur J Pharmacol 2022; 935:175305. [DOI: 10.1016/j.ejphar.2022.175305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 11/23/2022]
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14
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Guo Y, Gao Y, Liu S. lncRNA XIST is associated with preeclampsia and mediates trophoblast cell invasion via miR-340-5p/KCNJ16 signaling pathway. Transpl Immunol 2022; 74:101666. [PMID: 35809813 DOI: 10.1016/j.trim.2022.101666] [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: 05/27/2021] [Revised: 07/03/2022] [Accepted: 07/04/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND Preeclampsia (PE) is a syndrome commonly occurring among the pregnant. Shallow trophoblast invasion is considered to be closely related to PE. Therefore, in trophoblast cells, we explored the potential mechanisms of lncRNA XIST in the modulation of trophoblast invasion and proliferation. METHODS GEO online analyzer was used to screen the abnormally expressed RNAs in placenta tissues from patients with severe PE and healthy controls. The prediction of target bindings was performed on TargetScan and starBase. Transfection was conducted to regulate the RNA expression levels in trophoblast cells, HTR-8/SVneo. RT-qPCR measured expression of lncRNA XIST, miR-340-5p and KCNJ16. The CCK-8 assay examined cell viability. Flow cytometer analyzed apoptosis and luciferase assay determined the luciferase activity. Transwell assays detected the invasion and western blot verified the changes in protein expression of MMP2, MMP9 and KCNJ16 in trophoblast cells. RESULTS lncRNA XIST expression was enhanced in PE patients. Upregulation of lncRNA XIST in HTR-8/SVneo cells inhibited the cell proliferation and invasion, and induced apoptosis. XIST upregulation inhibited MMP2 and MMP9 protein expression. lncRNA XIST/ KCNJ16 interplayed as ceRNAs of miR-340-5p. Specifically,miR-340-5p overexpression reversed the effect of XIST upregulation on the cell apoptosis, proliferation and invasive ability and the knockdown of KCNJ16 could add to the effect of miR-340-5p overexpression in HTR-8/SVneo. CONCLUSION lncRNA XIST was upregulated in PE. Upregulation of lncRNA XIST exerted the inhibitory effects on the proliferation and invasion of trophoblast cells through the interactions with miR-340-5p/KCNJ16, which suggests that the lncRNA XIST/miR-340-5p/KCNJ16 axis might play a role in PE.
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Affiliation(s)
- Yuling Guo
- Tianjin Key Laboratory of human development and reproductive regulation, Tianjin Central Hospital of Gynecology Obstetrics, No. 156 Nankai Sanma Road Nankai District, Tianjin, 300100, China
| | - Yiping Gao
- Tianjin Key Laboratory of human development and reproductive regulation, Tianjin Central Hospital of Gynecology Obstetrics, No. 156 Nankai Sanma Road Nankai District, Tianjin, 300100, China
| | - Shasha Liu
- Tianjin Key Laboratory of human development and reproductive regulation, Tianjin Central Hospital of Gynecology Obstetrics, No. 156 Nankai Sanma Road Nankai District, Tianjin, 300100, China.
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15
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Liu XY, Qian LL, Wang RX. Hydrogen Sulfide-Induced Vasodilation: The Involvement of Vascular Potassium Channels. Front Pharmacol 2022; 13:911704. [PMID: 35721210 PMCID: PMC9198332 DOI: 10.3389/fphar.2022.911704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/02/2022] [Indexed: 12/21/2022] Open
Abstract
Hydrogen sulfide (H2S) has been highlighted as an important gasotransmitter in mammals. A growing number of studies have indicated that H2S plays a key role in the pathophysiology of vascular diseases and physiological vascular homeostasis. Alteration in H2S biogenesis has been reported in a variety of vascular diseases and H2S supplementation exerts effects of vasodilation. Accumulating evidence has shown vascular potassium channels activation is involved in H2S-induced vasodilation. This review aimed to summarize and discuss the role of H2S in the regulation of vascular tone, especially by interaction with different vascular potassium channels and the underlying mechanisms.
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Affiliation(s)
- Xiao-Yu Liu
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Ling-Ling Qian
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Ru-Xing Wang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
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16
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Đukanović Đ, Gajic Bojic M, Marinkovic S, Trailovic SM, Stojiljković MP, Škrbić R. Vasorelaxant effect of monoterpene carvacrol on isolated human umbilical artery. Can J Physiol Pharmacol 2022; 100:755-762. [PMID: 35507953 DOI: 10.1139/cjpp-2021-0736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Carvacrol is the main compound of essential oils extracted primarily from Thymus and Origanum species. Its various biological activities were confirmed: antioxidant, anti-inflammatory, antibacterial, antifungal, anti-tumour, antinematodal and vasorelaxant action. Although vasodilation mediated by carvacrol was previously described, the exact mechanism of its action has not yet been established. Hence, the aim of this study was to investigate carvacrol vasoactivity on human umbilical arteries (HUA) and different pathways involved in its mechanism of action using tissue bath methodology. Carvacrol caused a significant decrease in vascular tension of 5-HT-pre-contracted umbilical arteries, with EC50 of 442.13 ± 33.8 µM (mean ± standard error of the mean - SEM). At 300 µM, carvacrol shifted downward the 5-HT concentration-response curve with statistical significance of p < 0.001 obtained for the four highest concentrations. At concentration of 1 mM, carvacrol completely abolished BaCl2-induced contraction in Ca2+-free Krebs-Ringer bicarbonate solution (p < 0.001). Isopentenyl pyrophosphate, the antagonist of TRPV3 channel, was able to decrease the efficacy of carvacrol (p < 0.001). The vasorelaxant effect of carvacrol seems to involve the blocking of L-type of Ca2+ channels on smooth muscle cells. However, the role of TRPV3 channels in carvacrol-induced vasodilation of HUA cannot be excluded either.
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Affiliation(s)
- Đorđe Đukanović
- University of Banja Luka Faculty of Medicine, 469576, Centre for Biomedical Research, Banja Luka, Bosnia and Herzegovina;
| | - Milica Gajic Bojic
- University of Banja Luka Faculty of Medicine, 469576, Centre for Biomedical Research, Banja Luka, Bosnia and Herzegovina;
| | - Sonja Marinkovic
- University of Banja Luka Faculty of Medicine, 469576, Centre for Biomedical Research, Banja Luka, Bosnia and Herzegovina;
| | - Sasa M Trailovic
- University of Belgrade, 54801, Pharmacology and Toxicology, Bulevar oslobodjenja 18, Beograd, Serbia, 11000;
| | - Miloš P Stojiljković
- University of Banja Luka Faculty of Medicine, 469576, Department of Pharmacology, Toxicology and Clinical Pharmacology, Banja Luka, Bosnia and Herzegovina, 78000;
| | - Ranko Škrbić
- University of Banja Luka Faculty of Medicine, 469576, Banja Luka, Bosnia and Herzegovina, 78000;
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17
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Feiteiro J, Rocha SM, Mariana M, Maia CJ, Cairrão E. Pathways involved in the human vascular Tetrabromobisphenol A response: calcium and potassium channels and nitric oxide donors. Toxicology 2022; 470:153158. [DOI: 10.1016/j.tox.2022.153158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/14/2022] [Accepted: 03/17/2022] [Indexed: 01/28/2023]
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18
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Dantas DDM, Silva ADA, Pereira-de-Morais L, Bastos CMDS, Calixto GL, Kerntopf MR, Menezes IRAD, Weinreich D, Barbosa R. Characterization of the vasodilator effect of eugenol in isolated human umbilical cord arteries. Chem Biol Interact 2022; 359:109890. [DOI: 10.1016/j.cbi.2022.109890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/01/2022] [Accepted: 03/09/2022] [Indexed: 11/25/2022]
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19
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Cui T, Liu W, Yu C, Ren J, Li Y, Shi X, Li Q, Zhang J. Protective Effects of Allicin on Acute Myocardial Infarction in Rats via Hydrogen Sulfide-mediated Regulation of Coronary Arterial Vasomotor Function and Myocardial Calcium Transport. Front Pharmacol 2022; 12:752244. [PMID: 35046802 PMCID: PMC8762278 DOI: 10.3389/fphar.2021.752244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/30/2021] [Indexed: 12/12/2022] Open
Abstract
Acute myocardial infarction (AMI) is a condition with high morbidity and mortality, for which effective treatments are lacking. Allicin has been reported to exert therapeutic effects on AMI, but the underlying mechanisms of its action have not been fully elucidated. To investigate this, a rat model of AMI was generated by ligating the left anterior descending branch of the coronary artery. DL-propargylglycine (PAG), a specific hydrogen sulfide (H2S) synthetase inhibitor, was used to examine the effects of allicin on H2S production. Isolated coronary arteries and cardiomyocytes were assessed for vascular reactivity and cellular Ca2+ transport using a multiwire myography system and a cell-contraction-ion detection system, respectively. Allicin administration improved cardiac function and myocardial pathology, reduced myocardial enzyme levels, and increased H2S and H2S synthetase levels. Allicin administration resulted in concentration-dependent effects on coronary artery dilation, which were mediated by receptor-dependent Ca2+ channels, ATP-sensitive K+ channels, and sarcoplasmic reticulum (SR) Ca2+ release induced by the ryanodine receptor. Allicin administration improved Ca2+ homeostasis in cardiomyocytes by increasing cardiomyocyte contraction, Ca2+ transient amplitude, myofilament sensitivity, and SR Ca2+ content. Allicin also enhanced Ca2+ uptake via SR Ca2+-ATPase and Ca2+ removal via the Na+/Ca2+ exchanger, and it reduced SR Ca2+ leakage. Notably, the protective effects of allicin were partially attenuated by blockade of H2S production with PAG. Our findings provide novel evidence that allicin-induced production of H2S mediates coronary artery dilation and regulation of Ca2+ homeostasis in AMI. Our study presents a novel mechanistic insight into the anti-AMI effects of allicin and highlights the therapeutic potential of this compound.
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Affiliation(s)
- Tianwei Cui
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Department of Reproductive Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Weiyu Liu
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chenghao Yu
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jianxun Ren
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yikui Li
- Health Prevention Department, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiaolu Shi
- Beijing Key Laboratory of TCM Basic Research on Prevention and Treatment of Major Disease, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qiuyan Li
- Department of General Medicine, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jinyan Zhang
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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20
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Li H, An JR, Seo MS, Kang M, Heo R, Park S, Mun SY, Bae YM, Han ET, Han JH, Chun W, Na SH, Park WS. Downregulation of large-conductance Ca 2+-activated K + channels in human umbilical arterial smooth muscle cells in gestational diabetes mellitus. Life Sci 2022; 288:120169. [PMID: 34822796 DOI: 10.1016/j.lfs.2021.120169] [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: 10/19/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 11/25/2022]
Abstract
AIMS We investigated the changes in large-conductance Ca2+-activated K+ (BKCa) channels from human umbilical arterial smooth muscle cells experiencing gestational diabetes mellitus (GDM). MAIN METHODS Whole-cell patch-clamp technique, arterial tone measurement, RT-PCR, Quantitative real-time PCR, western blot were performed in human umbilical arterial smooth muscle cells. KEY FINDINGS Whole-cell BKCa current density was decreased in the GDM group compared with the normal group. The vasorelaxant effects of the synthetic BKCa channel activator NS-1619 (10 μM) were impaired in the GDM group compared with the normal group. Reverse-transcription polymerase chain reaction (RT-PCR), real-time RT-PCR, and western blot analyses suggested that the mRNA, total RNA, and protein expression levels of the BKCa channel were decreased in the GDM group relative to the normal group. In addition, the expression levels of protein kinase A and protein kinase G, which regulate BKCa channel activity, remained unchanged between the groups. Applying the BKCa channel inhibitor paxilline (10 μM) induced vasoconstriction and membrane depolarization of isolated umbilical arteries in the normal group but showed less of an effect on umbilical arteries in the GDM group. SIGNIFICANCE Our results demonstrate for the first time impaired BKCa current and BKCa channel-induced vasorelaxation activities that were not caused by impaired BKCa channel-regulated protein kinases, but by decreased expression of the BKCa channels, in the umbilical arteries of GDM patients.
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Affiliation(s)
- Hongliang Li
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Jin Ryeol An
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Mi Seon Seo
- Department of Physiology, Konkuk University School of Medicine, Chungju 27478, South Korea
| | - Minji Kang
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Ryeon Heo
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Seojin Park
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Seo-Yeong Mun
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Young Min Bae
- Department of Physiology, Konkuk University School of Medicine, Chungju 27478, South Korea
| | - Eun-Taek Han
- Department of Medical Environmental Biology and Tropical Medicine, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Jin-Hee Han
- Department of Medical Environmental Biology and Tropical Medicine, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Wanjoo Chun
- Department of Pharmacology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Sung Hun Na
- Institute of Medical Sciences, Department of Obstetrics and Gynecology, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon 24341, South Korea.
| | - Won Sun Park
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea.
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21
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Lorigo M, Cairrao E. Fetoplacental vasculature as a model to study human cardiovascular endocrine disruption. Mol Aspects Med 2021; 87:101054. [PMID: 34839931 DOI: 10.1016/j.mam.2021.101054] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 10/15/2021] [Accepted: 11/18/2021] [Indexed: 12/11/2022]
Abstract
Increasing evidence has associated the exposure of endocrine-disrupting chemicals (EDCs) with the cardiovascular (CV) system. This exposure is particularly problematic in a sensitive window of development, pregnancy. Pregnancy exposome can affect the overall health of the pregnancy by dramatic changes in vascular physiology and endocrine activity, increasing maternal susceptibility. Moreover, fetoplacental vascular function is generally altered, increasing the risk of developing pregnancy complications (including cardiovascular diseases, CVD) and predisposing the foetus to adverse health risks later in life. Thus, our review summarizes the existing literature on exposures to EDCs during pregnancy and adverse maternal health outcomes, focusing on the human placenta, vein, and umbilical artery associated with pregnancy complications. The purpose of this review is to highlight the role of fetoplacental vasculature as a model for the study of human cardiovascular endocrine disruption. Therefore, we emphasize that the placenta, together with the umbilical arteries and veins, allows a better characterization of the pregnant woman's exposome. Consequently, it contributes to the protection of the mother and foetus against CV disorders in life.
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Affiliation(s)
- Margarida Lorigo
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS - UBI, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Elisa Cairrao
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS - UBI, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
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22
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Gorshkova OP, Sokolova IB. Ischemia Changes the Contribution of KATP-Channels to Basal Tone and Dilation of Rat Pial Arteries. J EVOL BIOCHEM PHYS+ 2021. [DOI: 10.1134/s0022093021050136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Lorigo M, Quintaneiro C, Maia CJ, Breitenfeld L, Cairrao E. UV-B filter octylmethoxycinnamate impaired the main vasorelaxant mechanism of human umbilical artery. CHEMOSPHERE 2021; 277:130302. [PMID: 33789217 DOI: 10.1016/j.chemosphere.2021.130302] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 03/06/2021] [Accepted: 03/12/2021] [Indexed: 05/24/2023]
Abstract
Personal care products (PCPs) are a group of diverse substances widely used daily for health, beauty, and cleanliness. More than 90% of all PCPs contain the UV-B filter octylmethoxycinnamate (OMC) as a protective function, however, their safety has recently been questioned. The purpose of the present work was to understand how the long-term exposure of UV-filter OMC, used daily by pregnant women, disrupts their vascular homeostasis, altering vascular responses of proteins and channels involved in contractile processes. The long-term effects of 24 h of exposure to OMC (1, 10, and 50 μmol/L) were evaluated on contractile responses of human umbilical arteries (HUA) to serotonin and potassium chloride. Since OMC altered vascular homeostasis of arteries, its vascular mode of action was explored in more detail through the analysis of the activity of cGMP and Ca2+-channels, two pathways involved in their relaxation and contraction, respectively. Our findings showed that long-term exposure of UV-filter OMC impaired the main vasorelaxant mechanism of HUA, once OMC altered the vasorelaxant response pattern of sodium nitroprusside and nifedipine. Results also showed that long-term exposure to OMC induced a decreased vasorelaxation response on HUA due to an interference with the NO/sGC/cGMP/PKG pathway. Moreover, OMC seems to modulate the L-type Ca2+ channels, the BKCa 1.1 α-subunit channels, and the PKG. Overall, since OMC compromises the vascular homeostasis of pregnant women it can be an inductor of pregnancy hypertensive disorders.
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Affiliation(s)
- Margarida Lorigo
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS - UBI, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
| | - Carla Quintaneiro
- Department of Biology & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Cláudio J Maia
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS - UBI, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
| | - Luiza Breitenfeld
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS - UBI, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
| | - Elisa Cairrao
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal; FCS - UBI, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
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24
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Cheng J, Li X. Development and Application of Activity-based Fluorescent Probes for High-Throughput Screening. Curr Med Chem 2021; 29:1739-1756. [PMID: 34036907 DOI: 10.2174/0929867328666210525141728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 11/22/2022]
Abstract
High-throughput screening facilitates the rapid identification of novel hit compounds; however, it remains challenging to design effective high-throughput assays, partially due to the difficulty of achieving sensitivity in the assay techniques. Among the various analytical methods that are used, fluorescence-based assays dominate owing to their high sensitivity and ease of operation. Recent advances in activity-based sensing/imaging have further expanded the availability of fluorescent probes as monitors for high-throughput screening of result outputs. In this study, we have reviewed various activity-based fluorescent probes used in high-throughput screening assays, emphasizing their structure-related working mechanisms. Moreover, we have explored the possibility of the development of additional and better probes to boost hit identification and drug development against various targets.
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Affiliation(s)
- Juan Cheng
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Xin Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
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