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  1. Article: Effectiveness of Omega-3 Fatty Acid Supplementation in Improving the Metabolic and Inflammatory Profiles of Mexican Adults Hospitalized with COVID-19.

    Rodríguez-Vera, Diana / Salazar, Juan Rodrigo / Soriano-Ursúa, Marvin A / Guzmán-Pérez, Jessica / Vergara-Castañeda, Arely / Muñoz-Durán, Horacio / Ramírez-Velez, Gabriela L / Vivar-Sierra, Alonso / Naranjo-Navarro, Carlos Rogelio / Meza-Meneses, Patricia A / Loza-Mejía, Marco A / Pinto-Almazán, Rodolfo

    Diseases (Basel, Switzerland)

    2024  Volume 12, Issue 1

    Abstract: Background and objectives: The development of severe COVID-19 is related to the preexistence of comorbidities and an inadequate nutritional status. The latter is a critical factor for the development of infection and the progression of the disease. ... ...

    Abstract Background and objectives: The development of severe COVID-19 is related to the preexistence of comorbidities and an inadequate nutritional status. The latter is a critical factor for the development of infection and the progression of the disease. Notably, optimal nutrition impacts immune system function, as malnutrition is related to high cytokine levels in the late phase of the disease, correlating with a poor prognosis. In this sense, omega-3 fatty acids (O3FAs) have anti-inflammatory properties that may reduce morbidity and mortality from COVID-19 infection. O3FAs are linked to a better prognosis in COVID-19 patients.
    Materials and methods: In this randomized, double-blind clinical trial, we evaluate the administration of O3FAs to unvaccinated Mexican patients for two weeks starting after the first two hours of hospitalization.
    Results: The findings support the notion that O3FAs (in a dose high enough to satisfy human physiological requirements in a short time, one capsule of 1.4 g O3FAs daily) exert a comprehensive multi-systemic modulatory influence, affecting inflammatory and metabolic pathways. Significant perturbations in biomarkers, including absolute neutrophil count, hematocrit, and platelet indices, underscore the compound's anti-inflammatory effect. Concurrently, the intervention modulates pivotal metabolic and hepatic parameters, attenuating cardiovascular risk profiles and expediting patient convalescence. These multifarious effects are likely orchestrated through intricate biochemical mechanisms and are subject to individual variations predicated on metabolic factors.
    Conclusions: The results of this trial support the notion that O3FA supplementation has beneficial effects on COVID-19 patients with moderate presentation by regulating metabolism and limiting inflammation.
    Language English
    Publishing date 2024-01-17
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2720869-2
    ISSN 2079-9721
    ISSN 2079-9721
    DOI 10.3390/diseases12010028
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A PTP1B-Cdk3 Signaling Axis Promotes Cell Cycle Progression of Human Glioblastoma Cells through an Rb-E2F Dependent Pathway.

    Villamar-Cruz, Olga / Loza-Mejía, Marco Antonio / Vivar-Sierra, Alonso / Saldivar-Cerón, Héctor Iván / Patiño-López, Genaro / Olguín, Jonadab Efraín / Terrazas, Luis Ignacio / Armas-López, Leonel / Ávila-Moreno, Federico / Saha, Sayanti / Chernoff, Jonathan / Camacho-Arroyo, Ignacio / Arias-Romero, Luis Enrique

    Molecular and cellular biology

    2023  Volume 43, Issue 12, Page(s) 631–649

    Abstract: PTP1B plays a key role in developing different types of cancer. However, the molecular mechanism underlying this effect is unclear. To identify molecular targets of PTP1B that mediate its role in tumorigenesis, we undertook a SILAC-based phosphoproteomic ...

    Abstract PTP1B plays a key role in developing different types of cancer. However, the molecular mechanism underlying this effect is unclear. To identify molecular targets of PTP1B that mediate its role in tumorigenesis, we undertook a SILAC-based phosphoproteomic approach, which allowed us to identify Cdk3 as a novel PTP1B substrate. Substrate trapping experiments and docking studies revealed stable interactions between the PTP1B catalytic domain and Cdk3. In addition, we observed that PTP1B dephosphorylates Cdk3 at tyrosine residue 15 in vitro and interacts with it in human glioblastoma cells. Next, we found that pharmacological inhibition of PTP1B or its depletion with siRNA leads to cell cycle arrest with diminished activity of Cdk3, hypophosphorylation of Rb, and the downregulation of E2F target genes Cdk1, Cyclin A, and Cyclin E1. Finally, we observed that the expression of a constitutively active Cdk3 mutant bypasses the requirement of PTP1B for cell cycle progression and expression of E2F target genes. These data delineate a novel signaling pathway from PTP1B to Cdk3 required for efficient cell cycle progression in an Rb-E2F dependent manner in human GB cells.
    MeSH term(s) Humans ; Glioblastoma/genetics ; Cell Division ; Signal Transduction ; Cell Cycle Checkpoints ; Cell Cycle/physiology ; Protein Tyrosine Phosphatase, Non-Receptor Type 1/genetics ; Protein Tyrosine Phosphatase, Non-Receptor Type 1/metabolism
    Chemical Substances Protein Tyrosine Phosphatase, Non-Receptor Type 1 (EC 3.1.3.48)
    Language English
    Publishing date 2023-12-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 779397-2
    ISSN 1098-5549 ; 0270-7306
    ISSN (online) 1098-5549
    ISSN 0270-7306
    DOI 10.1080/10985549.2023.2273193
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: In Silico Study of Polyunsaturated Fatty Acids as Potential SARS-CoV-2 Spike Protein Closed Conformation Stabilizers: Epidemiological and Computational Approaches.

    Vivar-Sierra, Alonso / Araiza-Macías, María José / Hernández-Contreras, José Patricio / Vergara-Castañeda, Arely / Ramírez-Vélez, Gabriela / Pinto-Almazán, Rodolfo / Salazar, Juan Rodrigo / Loza-Mejía, Marco A

    Molecules (Basel, Switzerland)

    2021  Volume 26, Issue 3

    Abstract: SARS-CoV-2 infects host cells by interacting its spike protein with surface angiotensin-converting enzyme 2 (ACE2) receptors, expressed in lung and other cell types. Although several risk factors could explain why some countries have lower incidence and ... ...

    Abstract SARS-CoV-2 infects host cells by interacting its spike protein with surface angiotensin-converting enzyme 2 (ACE2) receptors, expressed in lung and other cell types. Although several risk factors could explain why some countries have lower incidence and fatality rates than others, environmental factors such as diet should be considered. It has been described that countries with high polyunsaturated fatty acid (PUFA) intake have a lower number of COVID-19 victims and a higher rate of recovery from the disease. Moreover, it was found that linoleic acid, an omega-6 PUFA, could stabilize the spike protein in a closed conformation, blocking its interaction with ACE2. These facts prompted us to perform in silico simulations to determine if other PUFA could also stabilize the closed conformation of spike protein and potentially lead to a reduction in SARS-CoV-2 infection. We found that: (a) countries whose source of omega-3 is from marine origin have lower fatality rates; and (b) like linoleic acid, omega-3 PUFA could also bind to the closed conformation of spike protein and therefore, could help reduce COVID-19 complications by reducing viral entrance to cells, in addition to their known anti-inflammatory effects.
    MeSH term(s) COVID-19/epidemiology ; Computer Simulation ; Eating ; Fatty Acids, Omega-3/pharmacology ; Fatty Acids, Unsaturated/chemistry ; Fatty Acids, Unsaturated/metabolism ; Fatty Acids, Unsaturated/pharmacology ; Humans ; Molecular Docking Simulation ; Molecular Dynamics Simulation ; Seafood ; Spike Glycoprotein, Coronavirus/chemistry ; Spike Glycoprotein, Coronavirus/metabolism ; Virus Internalization/drug effects
    Chemical Substances Fatty Acids, Omega-3 ; Fatty Acids, Unsaturated ; Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2
    Language English
    Publishing date 2021-01-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules26030711
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Inflammation Parameters Associated with Metabolic Disorders: Relationship Between Diet and Microbiota.

    Rodríguez-Vera, Diana / Vergara-Castañeda, Arely / Lazcano-Orozco, Diana K / Ramírez-Vélez, Gabriela / Vivar-Sierra, Alonso / Araiza-Macías, María José / Hernández-Contreras, José Patricio / Naranjo-Navarro, Carlos Rogelio / Salazar, Juan Rodrigo / Loza-Mejía, Marco A / Pinto-Almazán, Rodolfo

    Metabolic syndrome and related disorders

    2021  Volume 19, Issue 9, Page(s) 469–482

    Abstract: The metabolic syndrome (MetS) includes numerous interrelated clinical, anthropometric, biochemical, and metabolic components and has become a public health problem due to its impact on morbimortality. Inflammation is a central mechanism underlying the ... ...

    Abstract The metabolic syndrome (MetS) includes numerous interrelated clinical, anthropometric, biochemical, and metabolic components and has become a public health problem due to its impact on morbimortality. Inflammation is a central mechanism underlying the etiology and clinical manifestations of MetS, contributing to its related pathological outcomes. Dietary patterns have been associated with the promotion of the diversity of microbiota in the digestive tract. Recently, research has focused on the importance of microbiota changes associated with MetS and inflammation. Other studies have been performed to understand the impact of prebiotics, probiotics, and synbiotics as allies on diet, inflammation, and MetS parameters. This review analyses the correlation between metabolic disorders, inflammation parameters, gut microbiota, and how diet has been involved as treatment of MetS and the modulation of inflammation and microbiota.
    MeSH term(s) Diet ; Gastrointestinal Microbiome ; Humans ; Inflammation ; Metabolic Diseases/epidemiology
    Language English
    Publishing date 2021-08-16
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2151220-6
    ISSN 1557-8518 ; 1540-4196
    ISSN (online) 1557-8518
    ISSN 1540-4196
    DOI 10.1089/met.2021.0022
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: In Silico Study of Polyunsaturated Fatty Acids as Potential SARS-CoV-2 Spike Protein Closed Conformation Stabilizers

    Alonso Vivar-Sierra / María José Araiza-Macías / José Patricio Hernández-Contreras / Arely Vergara-Castañeda / Gabriela Ramírez-Vélez / Rodolfo Pinto-Almazán / Juan Rodrigo Salazar / Marco A. Loza-Mejía

    Molecules, Vol 26, Iss 3, p

    Epidemiological and Computational Approaches

    2021  Volume 711

    Abstract: SARS-CoV-2 infects host cells by interacting its spike protein with surface angiotensin-converting enzyme 2 (ACE2) receptors, expressed in lung and other cell types. Although several risk factors could explain why some countries have lower incidence and ... ...

    Abstract SARS-CoV-2 infects host cells by interacting its spike protein with surface angiotensin-converting enzyme 2 (ACE2) receptors, expressed in lung and other cell types. Although several risk factors could explain why some countries have lower incidence and fatality rates than others, environmental factors such as diet should be considered. It has been described that countries with high polyunsaturated fatty acid (PUFA) intake have a lower number of COVID-19 victims and a higher rate of recovery from the disease. Moreover, it was found that linoleic acid, an omega-6 PUFA, could stabilize the spike protein in a closed conformation, blocking its interaction with ACE2. These facts prompted us to perform in silico simulations to determine if other PUFA could also stabilize the closed conformation of spike protein and potentially lead to a reduction in SARS-CoV-2 infection. We found that: (a) countries whose source of omega-3 is from marine origin have lower fatality rates; and (b) like linoleic acid, omega-3 PUFA could also bind to the closed conformation of spike protein and therefore, could help reduce COVID-19 complications by reducing viral entrance to cells, in addition to their known anti-inflammatory effects.
    Keywords COVID-19 ; SARS-CoV-2 ; PUFA ; molecular docking ; spike protein ; DHA ; Organic chemistry ; QD241-441
    Subject code 612
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: p21-Activated Kinase 1 Promotes Breast Tumorigenesis

    Saldivar-Cerón, Héctor I / Villamar-Cruz, Olga / Wells, Claire M / Oguz, Ibrahim / Spaggiari, Federica / Chernoff, Jonathan / Patiño-López, Genaro / Huerta-Yepez, Sara / Montecillo-Aguado, Mayra / Rivera-Pazos, Clara M / Loza-Mejía, Marco A / Vivar-Sierra, Alonso / Briseño-Díaz, Paola / Zentella-Dehesa, Alejandro / Leon-Del-Rio, Alfonso / López-Saavedra, Alejandro / Padierna-Mota, Laura / Ibarra-Sánchez, María de Jesús / Esparza-López, José /
    Hernández-Rivas, Rosaura / Arias-Romero, Luis E

    Frontiers in cell and developmental biology

    2022  Volume 9, Page(s) 759259

    Abstract: p21-Activated kinase-1 (Pak1) is frequently overexpressed and/or amplified in human breast cancer and is necessary for transformation of mammary epithelial cells. Here, we show that Pak1 interacts with and phosphorylates the Calcium/Calmodulin-dependent ... ...

    Abstract p21-Activated kinase-1 (Pak1) is frequently overexpressed and/or amplified in human breast cancer and is necessary for transformation of mammary epithelial cells. Here, we show that Pak1 interacts with and phosphorylates the Calcium/Calmodulin-dependent Protein Kinase II (CaMKII), and that pharmacological inhibition or depletion of Pak1 leads to diminished activity of CaMKII. We found a strong correlation between Pak1 and CaMKII expression in human breast cancer samples, and combined inhibition of Pak1 and CaMKII with small-molecule inhibitors was synergistic and induced apoptosis more potently in Her2 positive and triple negative breast cancer (TNBC) cells. Co-adminstration of Pak and CaMKII small-molecule inhibitors resulted in a dramatic reduction of proliferation and an increase in apoptosis in a 3D cell culture setting, as well as an impairment in migration and invasion of TNBC cells. Finally, mice bearing xenografts of TNBC cells showed a significant delay in tumor growth when treated with small-molecule inhibitors of Pak and CaMKII. These data delineate a signaling pathway from Pak1 to CaMKII that is required for efficient proliferation, migration and invasion of mammary epithelial cells, and suggest new therapeutic strategies in breast cancer.
    Language English
    Publishing date 2022-01-17
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2737824-X
    ISSN 2296-634X
    ISSN 2296-634X
    DOI 10.3389/fcell.2021.759259
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: p21-Activated Kinase 1 Promotes Breast Tumorigenesis via Phosphorylation and Activation of the Calcium/Calmodulin-Dependent Protein Kinase II

    Héctor I. Saldivar-Cerón / Olga Villamar-Cruz / Claire M. Wells / Ibrahim Oguz / Federica Spaggiari / Jonathan Chernoff / Genaro Patiño-López / Sara Huerta-Yepez / Mayra Montecillo-Aguado / Clara M. Rivera-Pazos / Marco A. Loza-Mejía / Alonso Vivar-Sierra / Paola Briseño-Díaz / Alejandro Zentella-Dehesa / Alfonso Leon-Del-Rio / Alejandro López-Saavedra / Laura Padierna-Mota / María de Jesús Ibarra-Sánchez / José Esparza-López /
    Rosaura Hernández-Rivas / Luis E. Arias-Romero

    Frontiers in Cell and Developmental Biology, Vol

    2022  Volume 9

    Abstract: p21-Activated kinase-1 (Pak1) is frequently overexpressed and/or amplified in human breast cancer and is necessary for transformation of mammary epithelial cells. Here, we show that Pak1 interacts with and phosphorylates the Calcium/Calmodulin-dependent ... ...

    Abstract p21-Activated kinase-1 (Pak1) is frequently overexpressed and/or amplified in human breast cancer and is necessary for transformation of mammary epithelial cells. Here, we show that Pak1 interacts with and phosphorylates the Calcium/Calmodulin-dependent Protein Kinase II (CaMKII), and that pharmacological inhibition or depletion of Pak1 leads to diminished activity of CaMKII. We found a strong correlation between Pak1 and CaMKII expression in human breast cancer samples, and combined inhibition of Pak1 and CaMKII with small-molecule inhibitors was synergistic and induced apoptosis more potently in Her2 positive and triple negative breast cancer (TNBC) cells. Co-adminstration of Pak and CaMKII small-molecule inhibitors resulted in a dramatic reduction of proliferation and an increase in apoptosis in a 3D cell culture setting, as well as an impairment in migration and invasion of TNBC cells. Finally, mice bearing xenografts of TNBC cells showed a significant delay in tumor growth when treated with small-molecule inhibitors of Pak and CaMKII. These data delineate a signaling pathway from Pak1 to CaMKII that is required for efficient proliferation, migration and invasion of mammary epithelial cells, and suggest new therapeutic strategies in breast cancer.
    Keywords kinase ; migration ; small molecule inhibitor ; synergy ; breast cancer ; Biology (General) ; QH301-705.5
    Subject code 616
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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