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Fardoun M, Kobeissy F, Eid AH. Estrogen Receptor and the Gender Bias in Raynaud's Phenomenon. Curr Med Chem 2024; 31:133-137. [PMID: 36803760 DOI: 10.2174/0929867330666230220123237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 01/15/2023] [Accepted: 01/25/2023] [Indexed: 02/22/2023]
Affiliation(s)
- Manal Fardoun
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Firas Kobeissy
- Department of Neurobiology and Neuroscience, Morehouse School of Medicine, Atlanta, Georgia, USA
| | - Ali H Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
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2
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Fardoun M, Nasser SA, El-Yazbi AF, Eid AH. GPER Acts Through the cAMP/Epac/JNK/AP-1 Pathway to Induce Transcription of Alpha 2C Adrenoceptor in Human Microvascular Smooth Muscle Cells. J Cardiovasc Pharmacol 2023; 82:470-479. [PMID: 37773889 DOI: 10.1097/fjc.0000000000001489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 09/17/2023] [Indexed: 10/01/2023]
Abstract
ABSTRACT Raynaud's phenomenon, which results from exaggerated cold-induced vasoconstriction, is more prevalent in females than males. We previously showed that estrogen increases the expression of alpha 2C-adrenoceptors (α 2C -AR), the sole mediator of cold-induced vasoconstriction. This effect of estrogen is reproduced by the cell-impermeable form of the hormone (E 2 :bovine serum albumin [BSA]), suggesting a role of the membrane estrogen receptor, G-protein-coupled estrogen receptor [GPER], in E 2 -induced α 2C -AR expression. We also previously reported that E 2 upregulates α 2C -AR in microvascular smooth muscle cells (VSMCs) via the cAMP/Epac/Rap/JNK/AP-1 pathway, and that E 2 :BSA elevates cAMP levels. We, therefore, hypothesized that E 2 uses GPER to upregulate α 2C -AR through the cAMP/Epac/JNK/AP-1 pathway. Our results show that G15, a selective GPER antagonist, attenuates the E 2 -induced increase in α 2C -AR transcription. G-1, a selective GPER agonist, induced α 2C -AR transcription, which was concomitant with elevated cAMP levels and JNK activation. Pretreatment with ESI09, an Epac inhibitor, abolished G-1-induced α 2C -AR upregulation and JNK activation. Moreover, pretreatment with SP600125, a JNK-specific inhibitor, but not H89, a PKA-specific inhibitor, abolished G-1-induced α 2C -AR upregulation. In addition, transient transfection of an Epac dominant negative mutant (Epac-DN) attenuated G-1-induced activation of the α 2C -AR promoter. This inhibitory effect of Epac-DN on the α 2C -AR promoter was overridden by the cotransfection of constitutively active JNK mutant. Furthermore, mutation of AP-1 site in the α 2C -AR promoter abrogated G1-induced expression. Collectively, these results indicate that GPER upregulates α 2C -AR through the cAMP/EPAC/JNK/AP-1 pathway. These findings unravel GPER as a new mediator of cold-induced vasoconstriction, and present it as a potential target for treating Raynaud's phenomenon in estrogen-replete females.
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Affiliation(s)
- Manal Fardoun
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | | | - Ahmed F El-Yazbi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
- Faculty of Pharmacy, Alamein International University, Alamein City, Egypt; and
| | - Ali H Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
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3
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Aramouni K, Assaf R, Shaito A, Fardoun M, Al-Asmakh M, Sahebkar A, Eid AH. Biochemical and cellular basis of oxidative stress: Implications for disease onset. J Cell Physiol 2023; 238:1951-1963. [PMID: 37436042 DOI: 10.1002/jcp.31071] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 07/13/2023]
Abstract
Cellular oxidation-reduction (redox) systems, which encompass pro- and antioxidant molecules, are integral components of a plethora of essential cellular processes. Any dysregulation of these systems can cause molecular imbalances between the pro- and antioxidant moieties, leading to a state of oxidative stress. Long-lasting oxidative stress can manifest clinically as a variety of chronic illnesses including cancers, neurodegenerative disorders, cardiovascular disease, and metabolic diseases like diabetes. As such, this review investigates the impact of oxidative stress on the human body with emphasis on the underlying oxidants, mechanisms, and pathways. It also discusses the available antioxidant defense mechanisms. The cellular monitoring and regulatory systems that ensure a balanced oxidative cellular environment are detailed. We critically discuss the notion of oxidants as a double-edged sword, being signaling messengers at low physiological concentrations but causative agents of oxidative stress when overproduced. In this regard, the review also presents strategies employed by oxidants including redox signaling and activation of transcriptional programs such as those mediated by the Nrf2/Keap1 and NFk signaling. Likewise, redox molecular switches of peroxiredoxin and DJ-1 and the proteins they regulate are presented. The review concludes that a thorough comprehension of cellular redox systems is essential to develop the evolving field of redox medicine.
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Affiliation(s)
- Karl Aramouni
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Roland Assaf
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Abdullah Shaito
- Biomedical Research Center, Qatar University, Doha, Qatar
- Department of Biomedical Sciences, QU Health, Qatar University, Doha, Qatar
| | - Manal Fardoun
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Maha Al-Asmakh
- Department of Biomedical Sciences, QU Health, Qatar University, Doha, Qatar
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Medicine, The University of Western Australia, Perth, Western Australia, Australia
- Department of Biotechnology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali H Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
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Ramli I, Posadino AM, Giordo R, Fenu G, Fardoun M, Iratni R, Eid AH, Zayed H, Pintus G. Effect of Resveratrol on Pregnancy, Prenatal Complications and Pregnancy-Associated Structure Alterations. Antioxidants (Basel) 2023; 12:antiox12020341. [PMID: 36829900 PMCID: PMC9952837 DOI: 10.3390/antiox12020341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/24/2023] [Accepted: 01/28/2023] [Indexed: 02/04/2023] Open
Abstract
Adverse pregnancy outcomes are considered significant health risks for pregnant women and their offspring during pregnancy and throughout their lifespan. These outcomes lead to a perturbated in-utero environment that impacts critical phases of the fetus's life and correlates to an increased risk of chronic pathological conditions, such as diabetes, obesity, and cardiovascular diseases, in both the mother's and adult offspring's life. The dietary intake of naturally occurring antioxidants promotes health benefits and disease prevention. In this regard, maternal dietary intake of polyphenolic antioxidants is linked to a reduced risk of maternal obesity and cardio-metabolic disorders, positively affecting both the fetus and offspring. In this work, we will gather and critically appraise the current literature highlighting the effect/s of the naturally occurring polyphenol antioxidant resveratrol on oxidative stress, inflammation, and other molecular and physiological phenomena associated with pregnancy and pregnancy conditions, such as gestational diabetes, preeclampsia, and preterm labor. The resveratrol impact on prenatal complications and pregnancy-associated structures, such as the fetus and placenta, will also be discussed. Finally, we will draw conclusions from the current knowledge and provide future perspectives on potentially exploiting resveratrol as a therapeutic tool in pregnancy-associated conditions.
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Affiliation(s)
- Iman Ramli
- Departement de Biologie Animale, Université des Frères Mentouri Constantine 1, Constantine 25000, Algeria
| | - Anna Maria Posadino
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Roberta Giordo
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai 505055, United Arab Emirates
| | - Grazia Fenu
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Manal Fardoun
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut 11-0236, Lebanon
| | - Rabah Iratni
- Department of Biology, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Ali H. Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha 2713, Qatar
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar
| | - Gianfranco Pintus
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
- Correspondence:
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Fardoun M, Mondello S, Kobeissy F, Eid AH. G protein estrogen receptor as a potential therapeutic target in Raynaud’s phenomenon. Front Pharmacol 2022; 13:1061374. [DOI: 10.3389/fphar.2022.1061374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 10/31/2022] [Indexed: 11/11/2022] Open
Abstract
Exaggerated cold-induced vasoconstriction can precipitate a pathogenesis called Raynaud’s phenomenon (RP). Interestingly, RP is significantly more prevalent in females than age-matched men, highlighting the potential implication of 17β-estradiol (E2) in the etio-pathogenesis of this disease. Indeed, we have previously reported that E2 stimulates the expression of vascular alpha 2C-adrenoceptors (α2C-AR), the sole mediator of cold-induced constriction of cutaneous arterioles. This induced expression occurs through the cyclic adenosine monophosphate → exchange protein activated by cAMP→ Ras-related protein 1→ c-Jun N-terminal kinase→ activator protein-1 (cAMP/Epac/Rap/JNK/AP-1 pathway). On the basis that estrogen-induced rapid cAMP accumulation and JNK activation occurs so rapidly we hypothesized that a non-classic, plasma membrane estrogen receptor was the mediator. We then showed that an impermeable form of E2, namely E2:BSA, mimics E2 effects suggesting a role for the membranous G-protein coupled estrogen receptor (GPER) in E2-induced α2C-AR expression. Our current working hypothesis and unpublished observations further cement this finding, as G1, a GPER agonist, mimics while G15, a GPER antagonist, abrogates estrogen’s effect on the expression of vascular α2C-AR. These, and other observations, highlight the potential of GPER as a tractable target in the management of RP, particularly in pre-menopausal women.
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Bouhadir K, Eid AH, Hamze K, Abdallah RH, Younis NK, Fardoun M, Darwiche N, Kobeissy F, Iratni R. 2-Nucleobase-substituted 4,6-Diaminotriazine Analogs: Synthesis and Anti-cancer Activity in 5-Fluorouracil-Sensitive and Resistant Colorectal Cancer Cells. Curr Med Chem 2022; 30:3032-3049. [DOI: 10.2174/0929867329666220914112042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/26/2022] [Accepted: 08/05/2022] [Indexed: 11/22/2022]
Abstract
Background:
Cancer continues to be the second leading cause of death worldwide with colorectal cancer (CRC) being the third most common type. Despite significant advances in cancer therapies, current treatment of CRC remains suboptimal. In addition, the effectiveness of available chemotherapeutic drugs such as 5-Fluorouracil (5-FU) is limited by CRC-acquired resistance.
Methods:
In this study, we provide innovative approaches employed in synthesizing four novel nucleobase analogs. Equally, we describe the effects of these compounds on proliferation, migration, aggregation, adhesion of 5-FU-sensitive (HCT116) and -resistant (5-FU-R-HCT116) human CRC cells. In either cell type, our synthesized novel analogs significantly inhibited cell viability in a concentration- and time-dependent manner. This highlights the higher potency of these novel analogs. In addition, these compounds attenuated migration and adhesion of both cell types, while they promoted homotypic cell-cell interaction.
Results:
These changes were reflected by the downregulation matrix metalloproteases (MMP-2 and MMP-9). Furthermore, our analogs exhibited a potent anti-angiogenic activity in vivo.
Conclusion:
In addition, these compounds reduced the level of secreted vascular endothelial growth factor (VEGF) and nitric oxide (NO) production in both 5-FU-sensitive and -resistant cells. Taken together, our data highlight the potential chemotherapeutic properties of our novel analogs against CRC, including the 5-FU-resistant form.
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Affiliation(s)
- Kamal Bouhadir
- Department of Chemistry, American University of Beirut, P.O. Box 11-0236, 1107-2020, Beirut, Lebanon
| | - Ali H. Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, P.O. Box 2713, Qatar
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, P.O. Box 2713, Qatar
| | - Khalil Hamze
- Department of Chemistry, American University of Beirut, P.O. Box 11-0236, 1107-2020, Beirut, Lebanon
| | - Rola H. Abdallah
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, Beirut, Lebanon
| | - Nour K Younis
- Brigham and Women’s Hospital-Harvard Medical School, Boston, MA 02115, USA
| | - Manal Fardoun
- Department of Biology, American University of Beirut, P.O. Box 11-0236, 1107-2020, Beirut, Lebanon
| | - Nadine Darwiche
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, 1107-2020, Beirut, Lebanon
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, 1107-2020, Beirut, Lebanon
- Department of Emergency Medicine, University of Florida, USA,
| | - Rabah Iratni
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, P.O. Box 17551, UAE
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AlKahlout A, Fardoun M, Mesmar J, Abdallah R, Badran A, Nasser SA, Baydoun S, Kobeissy F, Shaito A, Iratni R, Muhammad K, Baydoun E, Eid AH. Origanum syriacum L. Attenuates the Malignant Phenotype of MDA-MB231 Breast Cancer Cells. Front Oncol 2022; 12:922196. [PMID: 35847867 PMCID: PMC9280492 DOI: 10.3389/fonc.2022.922196] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/25/2022] [Indexed: 11/25/2022] Open
Abstract
Breast cancer is the leading cause of cancer-related deaths among women. Among breast cancer types, triple negative breast cancer (TNBC) is the most aggressive, and is resistant to hormonal and chemotherapeutic treatments. As such, alternative approaches that may provide some benefit in fighting this debilitating pathology are critically needed; hence the utilization of herbal medicine. Origanum syriacum L., one of the most regularly consumed plants in the Mediterranean region, exhibits antiproliferative effect on several cancer cell lines. However, whether this herb modulates the malignant phenotype of TNBC remains poorly investigated. Here, we show that in MDA-MB-231, a TNBC cell line, Origanum syriacum L. aqueous extract (OSE) inhibited cellular viability, induced autophagy determined by the accumulation of lipidized LC3 II, and triggered apoptosis. We also show that OSE significantly promoted homotypic cell-cell adhesion while it decreased cellular migration, adhesion to fibronectin, and invasion of MDA-MB-231 cells. This was supported by decreased activity of focal adhesion kinase (FAK), reduced α2 integrin expression, and downregulation of secreted PgE2, MMP2 and MMP-9, in OSE-treated cells. Finally, we also show that OSE significantly inhibited angiogenesis and downregulated the level of nitric oxide (NO) production. Our findings demonstrate the ability of OSE to attenuate the malignant phenotype of the MDA-MB-231 cells, thus presenting Origanum syriacum L. as a promising potential source for therapeutic compounds for TNBC.
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Affiliation(s)
| | - Manal Fardoun
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Joelle Mesmar
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Rola Abdallah
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Adnan Badran
- Department of Basic Sciences, University of Petra, Amman, Jordan
| | - Suzanne A. Nasser
- Department of Pharmacology and Therapeutics, Beirut Arab University, Beirut, Lebanon
| | - Serine Baydoun
- Department of Diagnostic Radiology, Cleveland Clinic, Cleveland, OH, United States
| | - Firas Kobeissy
- Program for Neurotrauma, Neuroproteomics & Biomarkers Research, Departments of Emergency Medicine, Psychiatry, Neuroscience and Chemistry, University of Florida, Gainseville, FL, United States
| | | | - Rabah Iratni
- Department of Biology, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Khalid Muhammad
- Department of Biology, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Elias Baydoun
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Ali H. Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
- *Correspondence: Ali H. Eid,
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Wehbe Z, Hammoud SH, Yassine HM, Fardoun M, El-Yazbi AF, Eid AH. Molecular and Biological Mechanisms Underlying Gender Differences in COVID-19 Severity and Mortality. Front Immunol 2021; 12:659339. [PMID: 34025658 PMCID: PMC8138433 DOI: 10.3389/fimmu.2021.659339] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/20/2021] [Indexed: 12/13/2022] Open
Abstract
Globally, over two million people have perished due to the recent pandemic caused by SARS-CoV-2. The available epidemiological global data for SARS-CoV-2 portrays a higher rate of severity and mortality in males. Analyzing gender differences in the host mechanisms involved in SARS-CoV-2 infection and progression may offer insight into the more detrimental disease prognosis and clinical outcome in males. Therefore, we outline sexual dimorphisms which exist in particular host factors and elaborate on how they may contribute to the pronounced severity in male COVID-19 patients. This includes disparities detected in comorbidities, the ACE2 receptor, renin-angiotensin system (RAS), signaling molecules involved in SARS-CoV-2 replication, proteases which prime viral S protein, the immune response, and behavioral considerations. Moreover, we discuss sexual disparities associated with other viruses and a possible gender-dependent response to SARS-CoV-2 vaccines. By specifically highlighting these immune-endocrine processes as well as behavioral factors that differentially exist between the genders, we aim to offer a better understanding in the variations of SARS-CoV-2 pathogenicity.
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Affiliation(s)
- Zena Wehbe
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Safaa Hisham Hammoud
- Department of Pharmacology and Therapeutics, Beirut Arab University, Beirut, Lebanon
| | | | - Manal Fardoun
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Ahmed F. El-Yazbi
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Ali H. Eid
- Department of Basic Medical Sciences, College of Medicine, Qatar University Health, Qatar University, Doha, Qatar
- Biomedical and Pharmaceutical Research Unit, Qatar University Health, Qatar University, Doha, Qatar
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9
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Haidar MA, Jourdi H, Haj Hassan Z, Ashekyan O, Fardoun M, Wehbe Z, Maaliki D, Wehbe M, Mondello S, Abdelhady S, Shahjouei S, Bizri M, Mechref Y, Gold MS, Dbaibo G, Zaraket H, Eid AH, Kobeissy F. Neurological and Neuropsychological Changes Associated with SARS-CoV-2 Infection: New Observations, New Mechanisms. Neuroscientist 2021; 28:552-571. [PMID: 33393420 DOI: 10.1177/1073858420984106] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
SARS-CoV-2 infects cells through angiotensin-converting enzyme 2 (ACE2), a ubiquitous receptor that interacts with the virus' surface S glycoprotein. Recent reports show that the virus affects the central nervous system (CNS) with symptoms and complications that include dizziness, altered consciousness, encephalitis, and even stroke. These can immerge as indirect immune effects due to increased cytokine production or via direct viral entry into brain tissue. The latter is possible through neuronal access via the olfactory bulb, hematogenous access through immune cells or directly across the blood-brain barrier (BBB), and through the brain's circumventricular organs characterized by their extensive and highly permeable capillaries. Last, the COVID-19 pandemic increases stress, depression, and anxiety within infected individuals, those in isolation, and high-risk populations like children, the elderly, and health workers. This review surveys the recent updates of CNS manifestations post SARS-CoV-2 infection along with possible mechanisms that lead to them.
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Affiliation(s)
- Muhammad Ali Haidar
- Department of Biochemistry & Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Hussam Jourdi
- Department of Biology, University of Balamand, Souk El Gharb, Aley, Lebanon
| | - Zeinab Haj Hassan
- Department of Animal Biology, Faculty of Science, Lebanese University, Beirut, Lebanon
| | - Ohanes Ashekyan
- Department of Biochemistry & Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Manal Fardoun
- Department of Biology, Faculty of Arts and Sciences, American University of Beirut, Beirut, Lebanon
| | - Zena Wehbe
- Department of Biology, Faculty of Arts and Sciences, American University of Beirut, Beirut, Lebanon
| | - Dina Maaliki
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Maya Wehbe
- Department of Internal Medicine, Basingstoke & North Hampshire Hospital, Basingstoke, Hampshire, UK
| | - Stefania Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Samar Abdelhady
- Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Shima Shahjouei
- Neurology Department, Neuroscience Institute, Geisinger Health System, Danville, PA, USA
| | - Maya Bizri
- Department of Psychiatry, American University of Beirut Medical Center, Beirut, Lebanon
| | | | - Mark S Gold
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
| | - Ghassan Dbaibo
- Department of Biochemistry & Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Faculty of Medicine, Hariri School of Nursing, American University of Beirut, Beirut, Lebanon.,Center for Infectious Diseases Research, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Hassan Zaraket
- Faculty of Medicine, Hariri School of Nursing, American University of Beirut, Beirut, Lebanon.,Department of Pediatrics and Adolescent Medicine, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Ali H Eid
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Faculty of Medicine, Hariri School of Nursing, American University of Beirut, Beirut, Lebanon
| | - Firas Kobeissy
- Department of Biochemistry & Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Program for Neurotrauma, Neuroproteomics & Biomarkers Research, Departments of Emergency Medicine, Psychiatry, Neuroscience and Chemistry, University of Florida, Gainesville, FL, USA
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10
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Fardoun M, Dehaini H, Shaito A, Mesmar J, El-Yazbi A, Badran A, Beydoun E, Eid AH. The hypertensive potential of estrogen: An untold story. Vascul Pharmacol 2019; 124:106600. [PMID: 31629918 DOI: 10.1016/j.vph.2019.106600] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/18/2019] [Accepted: 09/25/2019] [Indexed: 12/24/2022]
Abstract
Cardiovascular disease (CVD) is the major cause of morbidity and mortality worldwide. The implication of estrogen in this disease has been extensively studied. While the vast majority of published research argue for a cardioprotective role of estrogen in vascular inflammation such as in atherosclerosis, the role of estrogen in hypertension remains far from being resolved. The vasorelaxant effect of estrogen has already been well-established. However, emerging evidence supports a vasoconstrictive potential of this hormone. It has been proposed that the microenvironment dictates the effect of estrogen-induced type 1 nitric oxide synthase-1 (nNOS) on vasotone. Indeed, depending on nNOS product, nitric oxide or superoxide, estrogen can induce vasodilation or vasoconstriction, respectively. In this review, we discuss the evidence supporting the vasorelaxant effects of estrogen, and the molecular players involved. Furthermore, we shed light on recent reports revealing a vasoconstrictive role of estrogen, and speculate on the underlying signaling pathways. In addition, we identify certain factors that can account for the discrepant estrogenic effects. This review emphasizes a yin-yang role of estrogen in regulating blood pressure.
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Affiliation(s)
- Manal Fardoun
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Hassan Dehaini
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
| | - Abdallah Shaito
- Department of Biological and Chemical Sciences, Faculty of Arts and Sciences, Lebanese International University, 1105 Beirut, Lebanon
| | - Joelle Mesmar
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Ahmed El-Yazbi
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon; Department of Pharmacology and Toxicology, Alexandria University, Alexandria, Egypt
| | - Adnan Badran
- Department of Nutrition, University of Petra, Amman, Jordan
| | - Elias Beydoun
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Ali H Eid
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon; Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar.
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11
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Fardoun M, Dehaini H, Kamar A, Bitar F, Majdalani M, El-Rassi I, Nemer G, Arabi M. Correction to: A Novel Somatic Variant in HEY2 Unveils an Alternative Splicing Isoform Linked to Ventricular Septal Defect. Pediatr Cardiol 2019; 40:1092. [PMID: 31087142 DOI: 10.1007/s00246-019-02120-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The original version of this article unfortunately contained a mistake in the author name. The first author name should be Manal Fardoun instead of Manal Fardon. The original article has been corrected.
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Affiliation(s)
- Manal Fardoun
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Hassan Dehaini
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Amina Kamar
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Fadi Bitar
- Department of Pediatrics and Adolescent Medicine, American University of Beirut, Beirut, Lebanon
| | - Marianne Majdalani
- Department of Pediatrics and Adolescent Medicine, American University of Beirut, Beirut, Lebanon
| | - Issam El-Rassi
- Department of Surgery, American University of Beirut, Beirut, Lebanon
| | - Georges Nemer
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Mariam Arabi
- Department of Pediatrics and Adolescent Medicine, American University of Beirut, Beirut, Lebanon.
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Fardoun M, Dehaini H, Kamar A, Bitar F, Majdalani M, El-Rassi I, Nemer G, Arabi M. A Novel Somatic Variant in HEY2 Unveils an Alternative Splicing Isoform Linked to Ventricular Septal Defect. Pediatr Cardiol 2019; 40:1084-1091. [PMID: 30955100 DOI: 10.1007/s00246-019-02099-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 03/23/2019] [Indexed: 10/27/2022]
Abstract
Congenital heart defects (CHDs) are the leading cause of death in infants under 1 year of age. Aberrations in the expression and function of cardiac transcription factors (TFs) are a major contributor to CHDs. Despite the numerous studies undertaken to functionally characterize these TFs, their exact role in different stages of cardiogenesis is still not fully elucidated. Here we focused on HEY2, a basic helix loop helix transcriptional repressor, and its potential role in human ventricular septal defects. Genetic analysis was performed based on sequencing of DNA and cDNA obtained from post-operational cardiac tissues and blood of 17 Lebanese patients with various CHDs. The screen covered the entire coding regions of the GATA4, NKX2.5, TBX5, TBX20 and HEY2 genes. Our results revealed two novel somatic mutations, namely p.Ala229Thr and p.161_190 del, affecting HEY2 in the diseased cardiac tissues of two patients with VSD. These results suggest a potential role of HEY2 in regulating ventricular septation in humans.
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Affiliation(s)
- Manal Fardoun
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Hassan Dehaini
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Amina Kamar
- Department of Biology, American University of Beirut, Beirut, Lebanon
| | - Fadi Bitar
- Department of Pediatrics and Adolescent Medicine, American University of Beirut, Beirut, Lebanon
| | - Marianne Majdalani
- Department of Pediatrics and Adolescent Medicine, American University of Beirut, Beirut, Lebanon
| | - Issam El-Rassi
- Department of Surgery, American University of Beirut, Beirut, Lebanon
| | - Georges Nemer
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Mariam Arabi
- Department of Pediatrics and Adolescent Medicine, American University of Beirut, Beirut, Lebanon.
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