Article
Biochemistry & Molecular Biology
Jaqueline Pereira Moura Soares, Diego Assis Goncalves, Ricardo Xisto de Sousa, Margareth Gori Mouro, Elisa M. S. Higa, Leticia Paulino Sperandio, Carolina Moraes Vitoriano, Elisa Bachir Santa Rosa, Fernanda Oliveira dos Santos, Gustavo Nery de Queiroz, Roberta Sessa Stilhano Yamaguchi, Gustavo Pereira, Marcelo Yudi Icimoto, Fabiana Henriques Machado de Melo
Summary: Cutaneous melanoma is the most aggressive type of skin cancer, and it progresses through different stages. Reactive oxygen species modulate oncogenic signaling pathways in all stages of melanoma development. The altered concentration of tetrahydrobiopterin disrupts cellular redox homeostasis and contributes to melanoma progression.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Biochemistry & Molecular Biology
Amir Asgari, Paul Jurasz
Summary: Megakaryocytes are important members of the hematopoietic system, responsible for regulating vascular homeostasis through platelets. The process of megakaryopoiesis generates mature megakaryocytes which release proplatelets into blood vessels. Nitric oxide (NO) plays a modulatory role in hematopoiesis and hemostasis. This review summarizes the effect of NO and its signaling on megakaryopoiesis and thrombopoiesis under physiological and pathophysiological conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Pharmacology & Pharmacy
Antonia Katsouda, Maria Markou, Paraskevas Zampas, Aimilia Varela, Constantinos H. Davos, Valentina Vellecco, Giuseppe Cirino, Mariarosaria Bucci, Andreas Papapetropoulos
Summary: Hydrogen sulfide (H2S), a gasotransmitter with cardiovascular protective effects, is produced by three enzymatic pathways in the body. In this study, a mouse model with a double Cth/Mpst knockout was generated, and it was found that CTH and MPST are the main sources of H2S in the cardiovascular system. The deficiency of these enzymes resulted in decreased blood pressure, while the structure and function of the heart remained normal.
FRONTIERS IN PHARMACOLOGY
(2023)
Article
Medicine, Research & Experimental
George J. Dugbartey
Summary: Kidney transplantation is the preferred treatment for patients with kidney failure. However, ischemia-reperfusion injury (IRI) poses a significant challenge to the long-term success of this intervention. Nitric oxide (NO) has emerged as a potential candidate for mitigating IRI and preventing graft rejection in kidney transplantation. This review provides an overview of the sources and protective effects of endogenous and exogenous NO in kidney transplantation.
BIOMEDICINE & PHARMACOTHERAPY
(2023)
Article
Biochemistry & Molecular Biology
Fabio Arias, Francisco Franco-Montalban, Miguel Romero, Juan Duarte, M. Dora Carrion, M. Encarnacion Camacho
Summary: This paper describes the design, synthesis, and biological evaluation of selective inhibitors of inducible nitric oxide synthase (iNOS). The most potent and selective compound showed inhibitory activity against iNOS without undesirable cardiovascular effects. In silico analysis predicted good drug-likeness properties for promising compounds, which also exhibited adequate cell viability. Docking studies revealed a unique binding mode for one compound and explained its selectivity towards iNOS.
BIOORGANIC CHEMISTRY
(2022)
Editorial Material
Plant Sciences
Francisco J. Corpas, Salvador Gonzalez-Gordo, Jose M. Palma
Summary: Nitric oxide is a crucial signaling molecule in plant physiological processes, but the enzymatic generation of nitric oxide in higher plants is still controversial.
TRENDS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Stanislav Rodkin, Valentina Dzreyan, Mikhail Bibov, Alexey Ermakov, Tatyana Derezina, Evgeniya Kirichenko
Summary: Peripheral-nerve injury can cause disability, and there is currently a lack of clinically effective neuroprotectors. This study investigated the role of NO-dependent expression of p53 in the death of neurons and glial cells following axotomy. The results showed that axotomy led to redistribution of p53 in neurons, and the application of a NO donor increased p53 levels in nuclei and cytoplasm of neurons, as well as karyoplasm of glial cells. In contrast, inhibition of iNOS had a neuroprotective effect. These findings suggest that the NO-dependent expression of p53 may play a signaling mechanism in neural and glial cell death after axotomy.
Review
Cell Biology
Stepan Gambaryan
Summary: Circulating blood platelets are regulated by stimulatory and inhibitory factors, and maintaining a balance between these processes is crucial for normal platelet and vascular function. The NO/cGMP/PKG signaling pathway plays a significant role in platelet inhibition, but its regulation is still not well understood.
Article
Medicine, Research & Experimental
Joao Victor Silva-Silva, Carla J. Moragas-Tellis, Maria S. S. Chagas, Paulo Victor R. Souza, Davyson L. Moreira, Celeste S. F. de Souza, Kerolain F. Teixeira, Arthur R. Cenci, Aldo S. de Oliveira, Fernando Almeida-Souza, Maria D. Behrens, Katia S. Calabrese
Summary: This study evaluated the leishmanicidal activity of a crude extract and anthocyanidin-rich fractions from Arrabidaea chica, as well as three isolated anthocyanidins. The results showed promising anti-leishmanial effects of these compounds, indicating their potential as therapeutic agents for leishmaniasis.
BIOMEDICINE & PHARMACOTHERAPY
(2021)
Article
Pharmacology & Pharmacy
Tatsiana Suvorava, Sara Metry, Stephanie Pick, Georg Kojda
Summary: Vascular tone regulation by nitric oxide is a crucial physiological function, with endothelial dysfunction potentially being an underlying cause of hypertension. Increasing eNOS activity reduces blood pressure, while decreasing activity has the opposite effect. These findings have important implications for pre-hypertensive treatment.
BIOCHEMICAL PHARMACOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Ming-Jie Hou, Pan Wang, Bao Ting Zhu
Summary: In this study, it was found that protein disulfide isomerase (PDI)-mediated neuronal nitric oxide synthase (nNOS) activation plays a critical role in chemically-induced ferroptosis, which is characterized by the accumulation of nitric oxide (NO), reactive oxygen species (ROS), and lipid-ROS. Inhibition or knockdown of PDI can effectively prevent ferroptotic cell death.
ACTA BIOCHIMICA ET BIOPHYSICA SINICA
(2023)
Article
Biochemistry & Molecular Biology
Divya Seth, Colin T. Stomberski, Precious J. McLaughlin, Richard T. Premont, Kathleen Lundberg, Jonathan S. Stamler
Summary: The aim of this study was to investigate the interactions between nitric oxide synthase (NOS) isoforms and proteins, as well as the mechanisms by which they mediate S-nitrosylation. The results showed that each NOS isoform interacts with and S-nitrosylates many proteins, but a large proportion of S-nitrosylated proteins are not associated with NOS. Additionally, the interactomes and S-nitrosylomes of individual NOS isoforms are largely unique, indicating specific roles for each isoform in S-nitrosylation.
ANTIOXIDANTS & REDOX SIGNALING
(2023)
Article
Horticulture
Sitthisak Intarasit, Bualuang Faiyue, Jamnong Uthaibutra, Kobkiat Saengnil
Summary: The research aimed to investigate the impact of chlorine dioxide (ClO2) on the browning of longan pericarp. The findings indicated that ClO2 fumigation reduced the activities of RNS producing enzymes, resulting in lower nitrosative stress levels and reduced pericarp browning.
SCIENTIA HORTICULTURAE
(2022)
Article
Biochemistry & Molecular Biology
Shinya Yokomizo, Malte Roessing, Atsuyo Morita, Timo Kopp, Emiyu Ogawa, Wataru Katagiri, Susanne Feil, Paul L. Huang, Dmitriy N. Atochin, Satoshi Kashiwagi
Summary: This study provides evidence that NIR-II laser enhances bioavailable NO in endothelial cells, suggesting its potential use in restoring endothelial NO and treating or preventing cardiovascular diseases.
Article
Biochemistry & Molecular Biology
Tijana Suboticki, Olivera Mitrovic Ajtic, Dragoslava Djikic, Marijana Kovacic, Juan F. Santibanez, Milica Tosic, Vladan P. Cokic
Summary: In various systems, hydroxyurea has been shown to stimulate the release of nitric oxide or activate nitric oxide synthase. Through inhibiting nitric oxide metabolites, hydroxyurea is able to inhibit the growth of mature erythroid colonies and impact the presence of iNOS immunoreactive CFU-E.