1
|
García-López D, Zaragoza-Ojeda M, Eguía-Aguilar P, Arenas-Huertero F. Endoplasmic Reticulum Stress in Gliomas: Exploiting a Dual-Effect Dysfunction through Chemical Pharmaceutical Compounds and Natural Derivatives for Therapeutical Uses. Int J Mol Sci 2024; 25:4078. [PMID: 38612890 PMCID: PMC11012637 DOI: 10.3390/ijms25074078] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 04/14/2024] Open
Abstract
The endoplasmic reticulum maintains proteostasis, which can be disrupted by oxidative stress, nutrient deprivation, hypoxia, lack of ATP, and toxicity caused by xenobiotic compounds, all of which can result in the accumulation of misfolded proteins. These stressors activate the unfolded protein response (UPR), which aims to restore proteostasis and avoid cell death. However, endoplasmic response-associated degradation (ERAD) is sometimes triggered to degrade the misfolded and unassembled proteins instead. If stress persists, cells activate three sensors: PERK, IRE-1, and ATF6. Glioma cells can use these sensors to remain unresponsive to chemotherapeutic treatments. In such cases, the activation of ATF4 via PERK and some proteins via IRE-1 can promote several types of cell death. The search for new antitumor compounds that can successfully and directly induce an endoplasmic reticulum stress response ranges from ligands to oxygen-dependent metabolic pathways in the cell capable of activating cell death pathways. Herein, we discuss the importance of the ER stress mechanism in glioma and likely therapeutic targets within the UPR pathway, as well as chemicals, pharmaceutical compounds, and natural derivatives of potential use against gliomas.
Collapse
Affiliation(s)
- Daniel García-López
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (D.G.-L.); (M.Z.-O.); (P.E.-A.)
- Facultad de Ciencia y Tecnología, Universidad Simón Bolívar, Mexico City 03920, Mexico
| | - Montserrat Zaragoza-Ojeda
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (D.G.-L.); (M.Z.-O.); (P.E.-A.)
| | - Pilar Eguía-Aguilar
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (D.G.-L.); (M.Z.-O.); (P.E.-A.)
- Departamento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (D.G.-L.); (M.Z.-O.); (P.E.-A.)
- Centro de Investigación en Biomedicina y Bioseguridad, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| |
Collapse
|
2
|
Díaz-López YE, Cázares-Domínguez V, Arenas-Huertero F, Gutierrez-Aguilar R. ETV5 Silencing Produces Mesenchymal to Epithelial Transition in INS-1 (832/13) Cell Line. Horm Metab Res 2024; 56:235-243. [PMID: 38335994 DOI: 10.1055/a-2246-4778] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
ETV5 has been described to be involved in the epithelial to mesenchymal transition (EMT) mainly in cancer. It is known that EMT provokes cytoskeleton remodeling, improving cellular migratory, and invasive capabilities. Moreover, overexpression of ETV5 has been correlated to cancer development and this gene has been implicated in cell proliferation. However, little is known about the downregulation of ETV5 expression in a pancreatic cell line and the inverse mesenchymal to epithelial transition (MET). Therefore, we studied the implications of ETV5 silencing over the phenotype of the insulinoma INS-1 (832/13) cell line and described the MET by partial ETV5 silencing in the INS-1 (832/13) cell line. The downregulation of ETV5 expression was obtained by using ETV5 siRNA in the insulinoma rat cell line, INS-1 (832/13). Then, ETV5 knockdown provoked a MET phenotype observed by crystal violet staining and verified by immunohistochemistry against E-cadherin. Wound healing assay showed no migration, and F-actin stain revealed rearrangement of actin microfilaments. In addition, TGFβ1 and TGFβ3 were downregulated in the absence of ETV5. ETV5 silencing induces epithelial phenotype by downregulating TGFβ1 and TGFβ3 in INS-1 (832/13) cell line.
Collapse
Affiliation(s)
- Yael Efrén Díaz-López
- División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
- Laboratorio de Investigación en Enfermedades Metabólicas, Obesidad y Diabetes, Hospital Infantil de México Federico Gomez, Mexico City, Mexico
| | - Vicenta Cázares-Domínguez
- Laboratorio de Investigación en Enfermedades Metabólicas, Obesidad y Diabetes, Hospital Infantil de México Federico Gomez, Mexico City, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Ruth Gutierrez-Aguilar
- División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
- Laboratorio de Investigación en Enfermedades Metabólicas, Obesidad y Diabetes, Hospital Infantil de México Federico Gomez, Mexico City, Mexico
| |
Collapse
|
3
|
Paz-Trejo C, Arenas-Huertero F, Gómez-Arroyo S. Nano fraction of pesticide induces genotoxicity and oxidative stress-dependent reticulum stress. Environ Toxicol 2024; 39:1072-1085. [PMID: 37800474 DOI: 10.1002/tox.23991] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/10/2023] [Accepted: 09/21/2023] [Indexed: 10/07/2023]
Abstract
The implementation of nanotechnology in different sectors has generated expectations as a new source of use due to the novel characteristics that it will bring. Particularly, nano pesticides promise to be more sustainable and less harmful to the ecosystem and human health; however, most studies continue to focus on their efficacy in the field, leaving aside the effect on humans. This project aimed to evaluate the genotoxic effect of a nano-encapsulated pesticide on bronchial epithelial cells (NL-20) in vitro and elucidate the mechanism through which they induce damage. The nano fraction (NF) of the pesticide Karate Zeon® 5 CS was characterized and isolated, and the uptake into the cell and the changes induced in the cellular ultrastructure were evaluated. In addition, the primary markers of oxidative stress, reticulum stress, and genotoxicity were assessed using the micronucleus test. A 700 nm fraction with a Z potential of -40 mV was obtained, whose main component is polyurea formaldehyde; this allows the capsules to enter the cell through macropinocytosis and clathrin-mediated endocytosis. Inside, they induce oxidative stress activating a reticulum stress response via the BIP protein and the IRE-1 sensor, triggering an inflammatory response. Likewise, stress reduces cell proliferation, increasing genotoxic damage through micronuclei; however, this damage is mainly induced by direct contact of the capsules with the nucleus. This pioneering study uses a nanometric encapsulated commercial pesticide to evaluate the molecular mechanism of induced damage. It makes it the first step in analyzing whether these substances represent a contaminant or an emerging solution.
Collapse
Affiliation(s)
- Cynthia Paz-Trejo
- Laboratorio de Genotoxicología Ambiental, Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Sandra Gómez-Arroyo
- Laboratorio de Genotoxicología Ambiental, Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| |
Collapse
|
4
|
García-Rodríguez MDC, Hernández-Cortés LM, Mendoza-Núñez VM, Arenas-Huertero F. Effects of green tea polyphenols against metal-induced genotoxic damage: underlying mechanistic pathways. J Toxicol Environ Health B Crit Rev 2023; 26:371-386. [PMID: 37306405 DOI: 10.1080/10937404.2023.2224119] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This review is based upon evidence from the published effects of green tea polyphenols (GTP) on genotoxic damage induced by metals with carcinogenic potential. First, the relationship between GTP and antioxidant defense system is provided. Subsequently, the processes involved in the oxidative stress generated by metals and their relationship to oxidative DNA damage is examined. The review demonstrated that GTP generally decrease oxidative DNA damage induced by exposure to metals such as arsenic (As), cadmium (Cd), cobalt (Co), copper (Cu), chromium (Cr), iron (Fe), and lead (Pb). The pathways involved in these effects are related to: (1) direct scavenging of free radicals (FR); (2) activation of mechanisms to repair oxidative DNA damage; (3) regulation of the endogenous antioxidant system; and (4) elimination of cells with genetic damage via apoptosis. The results obtained in the studies reviewed demonstrate potential for possible use of GTP to prevent and treat oxidative damage in populations exposed to metals. Further, GTP may be considered as adjuvants to treatments for metal-associated diseases related to oxidative stress and DNA damage.
Collapse
Affiliation(s)
- María Del Carmen García-Rodríguez
- Laboratorio de Antimutagénesis, Anticarcinogénesis Y Antiteratogénesis Ambiental, Facultad de Estudios Superiores-Zaragoza, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
| | - Lourdes Montserrat Hernández-Cortés
- Laboratorio de Antimutagénesis, Anticarcinogénesis Y Antiteratogénesis Ambiental, Facultad de Estudios Superiores-Zaragoza, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
| | - Víctor Manuel Mendoza-Núñez
- Unidad de Investigación En Gerontología, Facultad de Estudios Superiores-Zaragoza, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación En Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| |
Collapse
|
5
|
Estévez-Carmona MM, Ramírez-Apan MT, Zaragoza-Ojeda M, Vega-Miranda A, Arenas-Huertero F, Reynolds WF, Obregón-Mendoza MA. Perezone and its phenyl glycine derivative induce cytotoxicity via caspases on human glial cancer cells. Nat Prod Res 2023:1-11. [PMID: 37341748 DOI: 10.1080/14786419.2023.2225121] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
The new phenyl glycine derivative of perezone was obtained in a single reaction step in ca. 80% yield which showed remarkable cytotoxic activity against the astrocytoma U-251 cell line. After 24 h of exposure, both perezone (IC50 = 6.83 ± 1.64 µM) and its phenyl glycine derivative (2.60 ± 1.69 µM) showed cytotoxic effect on U-251 cells but were five times less cytotoxic on the non-tumoral SVGp12 cell line (IC50 = 28.54 ± 1.59 and 31.87 ± 1.54 µM respectively). Both compounds induced cellular morphological changes (pyknosis or cytoplasmic vacuolization) and increased the expression of caspases 3, 8, and 9 genes related to apoptosis. In the acute toxicity study, phenyl glycine perezone (DL50 = 2000 mg/Kg) demonstrated to be less toxic than perezone (DL50 = 500 mg/Kg). Phenylglycine-perezone can envisage a beneficial therapeutic potential.
Collapse
Affiliation(s)
- M Mirian Estévez-Carmona
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Wilfrido Massieu SN, U. A. Zacatenco, Ciudad de México, México
| | - M Teresa Ramírez-Apan
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México, México
| | - Montserrat Zaragoza-Ojeda
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Anita Vega-Miranda
- Laboratorio de Transducción de Señales, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Ciudad de México, México
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - William F Reynolds
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Marco A Obregón-Mendoza
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México, México
| |
Collapse
|
6
|
Angeles-Floriano T, Sanjuan-Méndez A, Rivera-Torruco G, Parra-Ortega I, Lopez-Martinez B, Martinez-Castro J, Marin-Santiago S, Alcántara-Hernández C, Martínez-Martínez A, Márquez-González H, Klünder-Klünder M, Olivar-López V, Zaragoza-Ojeda M, Arenas-Huertero F, Torres-Aguilar H, Medina-Contreras O, Zlotnik A, Valle-Rios R. Leukocyte surface expression of the endoplasmic reticulum chaperone GRP78 is increased in severe COVID-19. J Leukoc Biol 2023; 113:1-10. [PMID: 36822163 DOI: 10.1093/jleuko/qiac017] [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: 11/05/2021] [Indexed: 01/12/2023] Open
Abstract
Hyperinflammation present in individuals with severe COVID-19 has been associated with an exacerbated cytokine production and hyperactivated immune cells. Endoplasmic reticulum stress leading to the unfolded protein response has been recently reported as an active player in inducing inflammatory responses. Once unfolded protein response is activated, GRP78, an endoplasmic reticulum-resident chaperone, is translocated to the cell surface (sGRP78), where it is considered a cell stress marker; however, its presence has not been evaluated in immune cells during disease. Here we assessed the presence of sGRP78 on different cell subsets in blood samples from severe or convalescent COVID-19 patients. The frequency of CD45+sGRP78+ cells was higher in patients with the disease compared to convalescent patients. The latter showed similar frequencies to healthy controls. In patients with COVID-19, the lymphoid compartment showed the highest presence of sGRP78+ cells versus the myeloid compartment. CCL2, TNF-α, C-reactive protein, and international normalized ratio measurements showed a positive correlation with the frequency of CD45+sGRP78+ cells. Finally, gene expression microarray data showed that activated T and B cells increased the expression of GRP78, and peripheral blood mononuclear cells from healthy donors acquired sGRP78 upon activation with ionomycin and PMA. Thus, our data highlight the association of sGRP78 on immune cells in patients with severe COVID-19.
Collapse
Affiliation(s)
- Tania Angeles-Floriano
- División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico.,Programa de Maestría y Doctorado en Ciencias Médicas Odontológicas y de la Salud, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico.,Unidad de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Adriana Sanjuan-Méndez
- División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico.,Unidad de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Mexico City, Mexico.,Programa de Maestría en Biomedicina Experimental, Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca City, Mexico
| | - Guadalupe Rivera-Torruco
- División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico.,Unidad de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Mexico City, Mexico.,Departamento de Fisiología y Neurociencias, Centro de Investigación y de Estudios Avanzados (CINVESTAV), Mexico City, Mexico
| | - Israel Parra-Ortega
- Departamento de Laboratorio Clínico, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Briceida Lopez-Martinez
- Departamento de Laboratorio Clínico, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Jesús Martinez-Castro
- Departamento de Medicina Interna, Centro Médico Lic, Adolfo López Mateos de Toluca, Toluca City, Mexico
| | - Sergio Marin-Santiago
- Departamento de Medicina Interna, Centro Médico Lic, Adolfo López Mateos de Toluca, Toluca City, Mexico
| | | | - Araceli Martínez-Martínez
- Departamento de Medicina Interna, Centro Médico Lic, Adolfo López Mateos de Toluca, Toluca City, Mexico
| | - Horacio Márquez-González
- Departamento de Investigación Clínica, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Miguel Klünder-Klünder
- Subdirección de Investigación, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Victor Olivar-López
- Departamento de Urgencias Pediátricas, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Montserrat Zaragoza-Ojeda
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Honorio Torres-Aguilar
- Facultad de Ciencias Químicas, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca City, Mexico
| | - Oscar Medina-Contreras
- Unidad de Investigación Epidemiológica en Endocrinología y Nutrición, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Albert Zlotnik
- Department of Physiology and Biophysics, University of California, Irvine, CA, United States
| | - Ricardo Valle-Rios
- División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico.,Unidad de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| |
Collapse
|
7
|
Cortés-Eslava J, Gómez-Arroyo S, Cortés PAM, Jiménez-García LF, Lara-Martínez R, Arenas-Huertero F, Morton-Bermea O, Testillano PS. The wild plant Gnaphalium lavandulifolium as a sentinel for biomonitoring the effects of environmental heavy metals in the metropolitan area of México Valley. Environ Monit Assess 2022; 195:195. [PMID: 36512105 DOI: 10.1007/s10661-022-10763-9] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 11/12/2022] [Indexed: 06/17/2023]
Abstract
Biomonitoring is a valuable tool for assessing the presence and effects of air pollutants such as heavy metals (HM); due to their toxicity and stability, these compounds can affect human health and the balance of ecosystems. To assess its potential as a sentinel organism of HM pollution, the wild plant Gnaphalium lavandulifolium was exposed to four sites in the metropolitan area of México Valley (MAMV): Altzomoni (ALT) Coyoacán (COY), Ecatepec (ECA), and Tlalnepantla (TLA) during 2, 4, and 8 weeks, between October and November 2019. Control plants remained under controlled conditions. The chemical analysis determined twelve HM (Al, As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, V, and Zn) in the leaves. Macroscopic damage to the leaves, later determined in semi-thin sections under light microscopy, lead to a finer analysis. Transmission electron microscope (TEM) showed major structural changes: chromatin condensation, protoplast shrinkage, cytoplasm vacuolization, cell wall thinning, decreased number and size of starch grains, and plastoglobules in chloroplasts. All these characteristics of stress-induced programed cell death (sPCD) were related to the significant increase of toxic HM in the leaves of the exposed plants compared to the control (p < 0.05). Immunohistochemistry revealed a significant amount of proteases with caspase 3-like activity in ECA and TLA samples during long exposure times. Ultrastructural changes and sPCD features detected confirmed the usefulness of G. lavandulifolium as a good biomonitor of HM contamination. They supported the possibility of considering subcellular changes as markers of abiotic stress conditions in plants.
Collapse
Affiliation(s)
- Josefina Cortés-Eslava
- Laboratorio de Genotoxicología y Mutagénesis Ambientales, Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de Mexico, México
| | - Sandra Gómez-Arroyo
- Laboratorio de Genotoxicología y Mutagénesis Ambientales, Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de Mexico, México.
| | - Pablo Antonio Mérida Cortés
- Laboratorio de Genotoxicología y Mutagénesis Ambientales, Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de Mexico, México
| | - Luis Felipe Jiménez-García
- Laboratorio de Microscopía Electrónica, Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de Mexico, México
| | - Reyna Lara-Martínez
- Laboratorio de Microscopía Electrónica, Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de Mexico, México
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de Mexico, México
| | - Ofelia Morton-Bermea
- Laboratorio de Geomagnetismo y Exploración Geofísica, Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de Mexico, México
| | - Pilar S Testillano
- Laboratory of Pollen Biotechnology of Crop Plants, Centro de Investigaciones Biológicas Margarita Salas (CIB), C.S.I.C, Ramiro de Maeztu, 9, 28040, Madrid, Spain
| |
Collapse
|
8
|
García-Rodríguez MDC, Hernández-Cortés LM, Arenas-Huertero F. Catequinas del té verde: efectos antigenotóxicos y genotóxicos. Revisión sistemática. Arch Latinoam Nutr 2022. [DOI: 10.37527/2022.72.3.006] [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] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The green tea catechins (Camellia sinensis) (CTV) have beneficial effects for health associated with their antioxidant potential. Moreover, oxidative stress is one of the pathways for inducing genotoxic damage. Hence, in this review, an analysis of the antigenotoxic and genotoxic effects of CTV was carried out, emphasizing the pathways involved in these processes and their effects on health. A review of articles indexed in the PubMed® and ScienceDirect® (2021) databases with the keywords “green tea” and “green tea catechins” was carried out. Studies were delimited using the Boolean operators “AND”, “OR” and “NOT” (“antigenotoxic”, “genotoxic”, “antioxidant” and “prooxidant”). For the most part, publications from 2016 to 2021 were considered. It was observed that the beneficial health effects of CTVs are related to: a) their antioxidant activity through the capture, inhibition and prevention of the formation of reactive oxygen species; b) the regulation of the endogenous antioxidant system; c) the activation of the repair mechanisms by contributing to the elimination of the 8-hydroxy-2'-deoxyguanosine adduct; d) the induction of apoptosis in cells with DNA damage; and e) the inhibition of inflammation related to its antiapoptotic activity. Although some of the studies reported genotoxic effects, these in turn contributed to the elimination of cells with genetic damage. Therefore, the genotoxic activity of CTV cannot be considered as harmful to health.
Collapse
|
9
|
Paz-Trejo C, Jiménez-García LF, Arenas-Huertero F, Gómez-Arroyo S. Comparison of the genotoxicity of two commercial pesticides by their micro and nano size capsules. Toxicol Ind Health 2022; 38:675-686. [PMID: 36045123 DOI: 10.1177/07482337221122482] [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] [Indexed: 11/16/2022]
Abstract
The use of nanotechnology in the agrochemical industry has become increasingly popular over the past decade, raising the question of whether these products may represent a risk or benefit compared to their conventional presentations. In this study, we aimed to evaluate the different genotoxic effects of the Complete encapsulated presentation (CEP), the micro encapsulated fraction (MEF), and the nano encapsulated fraction (NEF) of two pesticides (Karate® and Ampligo®) in lymphocytes from human peripheral blood. To test the different fractions, the pesticides were separated by centrifugations by the average size of the capsule, then were characterized by the general composition of the capsule by RAMAN and FTIR spectroscopy and the active ingredient of both pesticides by gas chromatography-mass spectrometry. Each fraction was tested separately and analyzed by comet assay through the tail moment and the percentage of DNA in the tail and the cytokinesis-block micronucleus through their frequency of micronucleus, nucleoplasmic bridges, and nuclear buds. The nuclear division index and the Nuclear Division Cytotoxicity Index were also measured. For both pesticides, the CEP increased the genetic damage observed in the tail moment and percentage of DNA in the tail at all concentrations for both pesticides. However, in the micronucleus test, NEF induced more micronuclei than MEF and CEP in all treatments reducing cell proliferation as the concentration decreased for both pesticides. These results suggested that NEF had more genotoxic effects in both pesticides, increasing the damage to the cells.
Collapse
Affiliation(s)
- Cynthia Paz-Trejo
- Laboratorio de Genotoxicología y Mutagénesis Ambientales, Instituto de Ciencias de la Atmósfera y Cambio Climático, 7180Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, México
| | - Luis Felipe Jiménez-García
- Laboratorio de Microscopía Electrónica, Edificio Tlahuizcalpan, Facultad de Ciencias, 98804Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, México
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, 61670Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Sandra Gómez-Arroyo
- Laboratorio de Genotoxicología y Mutagénesis Ambientales, Instituto de Ciencias de la Atmósfera y Cambio Climático, 7180Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, México
| |
Collapse
|
10
|
Zaragoza-Ojeda M, Torres-Flores U, Rodríguez-Leviz A, Arenas-Huertero F. Benzo[ghi]perylene induces cellular dormancy signaling and endoplasmic reticulum stress in NL-20 human bronchial epithelial cells. Toxicol Appl Pharmacol 2022; 439:115925. [PMID: 35182551 DOI: 10.1016/j.taap.2022.115925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 08/24/2021] [Revised: 01/25/2022] [Accepted: 02/14/2022] [Indexed: 12/22/2022]
Abstract
Benzo[ghi]perylene (BghiP) is produced by the incomplete combustion of gasoline and it is a marker of high vehicular flow in big cities. Nowadays, it is known that BghiP functions as ligand for the aryl hydrocarbon receptor (AhR), which can cause several molecular responses. For this reason, the aim of the present study was to assess the in vitro effects of the exposure to BghiP, specifically, the induction of cellular dormancy and endoplasmic reticulum stress (ER stress) in NL-20 human cells. Our results proved that a 24 h exposure of BghiP, increased the expression of NR2F1 (p < 0.05). NR2F1 is the main activator of cell dormancy, therefore, we analyzed the expression of its target genes SOX9 and p27 showing an increase of the transcripts (p < 0.05), suggesting a pathway that could produce a cell cycle arrest. Interestingly, this effect was only observed with BghiP exposure, and not with a classic AhR ligand: benzo[a]pyrene. Moreover, in the presence of the AhR antagonist, CH223191, or when the expression of AhR was knock-down using dsiRNAs, the cellular dormancy signaling pathway was blocked. Morphological and ultrastructure analysis demonstrated that BghiP also induces ER stress, characterized by the dilated ER cisternae and the overexpression of PERK and CHOP genes (p < 0.05). Moreover, the halt of cell proliferation and the ER stress are both associated to the increase of pro-inflammatory cytokines (IL-6 and IL-8) and the cell survival in response to microenvironmental cues. These responses induced by BghiP on bronchial cells open new horizons on the research of other biological effects induced by environmental pollutants.
Collapse
Affiliation(s)
- Montserrat Zaragoza-Ojeda
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; Posgrado en Ciencias Biológicas, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico
| | - Ulises Torres-Flores
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Alejandra Rodríguez-Leviz
- Laboratorio de Microscopía Electrónica, Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico.
| |
Collapse
|
11
|
Castro-Leyva V, Arenas-Huertero F, Espejel-Núñez A, Giono Cerezo S, Flores-Pliego A, Espino Y Sosa S, Reyes-Muñoz E, Vadillo-Ortega F, Borboa-Olivares H, Camacho-Arroyo I, Estrada-Gutierrez G. miR-21 differentially regulates IL-1β and IL-10 expression in human decidual cells infected with streptococcus B. Reprod Biol 2022; 22:100604. [PMID: 35033900 DOI: 10.1016/j.repbio.2022.100604] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 07/10/2021] [Revised: 12/09/2021] [Accepted: 01/02/2022] [Indexed: 11/16/2022]
Abstract
Intrauterine infections caused by bacteria like group B streptococcus (GBS) and the subsequent activation of the maternal inflammatory response have been long suspected to be the underlying cause of preterm labor. The inflammatory network triggered by maternal decidua has been widely described and includes the secretion of pro- and anti-inflammatory cytokines as IL-1β and IL-10; however, the mechanisms that regulate their secretion have not been completely elucidated. MicroRNAs (miRNAs) are critical modulators of the inflammatory response by regulating cytokine expression in several cell types. Here, we explored the role of miR-21 in the expression of IL-1β and IL-10 in human decidual stromal cells (DSCs) exposed in vitro to GBS. We observed that IL1B and IL10 expression at the mRNA level was increased in DSCs after GBS infection. IL-10 but not IL-1β secretion was detected in the culture supernatants. We found a higher miR-21 expression (22-fold) in infected DSCs as compared with non-infected cells. miR-21 functional analysis revealed that DSCs transfected with an antagomiR vs. miR-21 significantly increased the secretion of IL-1β but decreased that of IL-10 in DSCs cells infected with GBS. Our results suggest that miR-21 participates in balancing the inflammatory response in infected decidua through at least IL-1β and IL-10 regulation. This is the first study attributing a functional role of miR-21 in the regulation of key molecules involved in the inflammatory response in infected DSCs, providing new insights into the epigenetic control of human decidual inflammation.
Collapse
Affiliation(s)
- Violeta Castro-Leyva
- Department of Immunobiochemistry, Instituto Nacional de Perinatología, Mexico City, Mexico; Posgrado en Ciencias Químico-Biológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, 11340, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Aurora Espejel-Núñez
- Department of Immunobiochemistry, Instituto Nacional de Perinatología, Mexico City, Mexico
| | - Silvia Giono Cerezo
- Posgrado en Ciencias Químico-Biológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, 11340, Mexico
| | - Arturo Flores-Pliego
- Department of Immunobiochemistry, Instituto Nacional de Perinatología, Mexico City, Mexico
| | | | - Enrique Reyes-Muñoz
- Coordination of Gynecologic and Perinatal Endocrinology, Instituto Nacional de Perinatología, Mexico City, Mexico
| | - Felipe Vadillo-Ortega
- UNAM School of Medicine Branch, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Héctor Borboa-Olivares
- Community Interventions Research Branch, Instituto Nacional de Perinatología, Mexico City, Mexico
| | - Ignacio Camacho-Arroyo
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | |
Collapse
|
12
|
Eslava-Avilés E, Arenas-Huertero F. piRNAs: nature, biogenesis, regulation, and their potential clinical utility. Bol Med Hosp Infant Mex 2021; 78:432-442. [PMID: 34571517 DOI: 10.24875/bmhim.20000185] [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] [Indexed: 11/17/2022] Open
Abstract
RNAs that interact with PIWI (P-element Induced Wimpy) proteins, called piRNAs, were discovered in 2006. Considered the "guardians of the genome," piRNAs were first described in germ cells of Mus musculus and Drosophila melanogaster. Since then, studies have focused on elucidating their origin, biogenesis, and mechanisms of action. Today, we know some of the molecules that participate in these processes, but the nature of the molecular processes that they perform remains largely unknown. However, recent studies have demonstrated that both the piRNAs and their associated proteins are also expressed in somatic cells, suggesting that their scope of action is much greater than initially thought. In addition, their union to PIWI proteins generates a silencing complex that represses the transcriptional and post-transcriptional expression of repeated sequences, including elements known as "transposables". Finally, a recent discovery revealed that this complex could modulate the silencing of specific messenger RNAs (mRNA) necessary for cell regulation. The regulatory function that piRNAs perform in various cellular processes has led to a diversification in their study concerning various diseases, including cancer, where there are indications of their potential function as diagnostic tools, biomarkers for prognoses, and future therapeutic targets. Recently, changes in piRNAs expression have been observed in diseases related to air pollution exposition, such as respiratory diseases.
Collapse
Affiliation(s)
- Emilio Eslava-Avilés
- Programa de Posgrado en Ciencias Biológicas, Facultad de Medicina, Universidad Nacional Autónoma de México. Mexico City, Mexico.,Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez. Mexico City, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez. Mexico City, Mexico
| |
Collapse
|
13
|
López-Santaella T, Álvarez Y Muñoz T, Medeiros-Domingo M, Moreno-Espinosa S, Consuelo-Sánchez A, Muñoz-Hernández O, Sarmiento-Silva RE, Sotomayor-González A, Trujillo-Ortega ME, García-Hernández ME, Taboada-Ramírez BI, Arenas-Huertero F. Serological and molecular study of Hepatitis E virus in pediatric patients in Mexico. Ann Hepatol 2021; 19:295-301. [PMID: 31899127 DOI: 10.1016/j.aohep.2019.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 09/30/2019] [Revised: 11/27/2019] [Accepted: 12/04/2019] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND OBJECTIVES Cases of viral hepatitis reported in Mexico are typically identified as hepatitis A, B and C. However, unspecified cases are reported annually. Hepatitis E virus (HEV) is an emergent agent that causes a self-limiting infection that can evolve to chronic in immunosuppressed individuals. In Mexico, HEV genotype 2 is considered endemic, though it's the prevalence is not well known. Therefore, the present study was designed to determine the prevalence of HEV among patients at the "Hospital Infantil de Mexico Federico Gomez". MATERIALS AND METHODS The study included 99 patients, anti-HEV antibody (IgG and IgM) were detected by indirect ELISA and viral genome was identified using RT-PCR technique. Two PCR products of positive cases were sequenced. RESULTS ELISA results were positive in 3% and 6%, for IgG and IgM respectively, 54.5% prevalence was found by PCR. Low lymphocyte count (p<0.05) and malnutrition (p<0.005) were significant factors for high PCR prevalence and could increase the possibility of infection. Two samples were sequenced and confirmed the presence of HEV genotype 3. CONCLUSIONS This report reveals the incidence of HEV in pediatric patients in Mexico. Moreover, the identification of HEV genotype 3 in human samples suggests a potential zoonotic risk that requires further research.
Collapse
Affiliation(s)
- Tayde López-Santaella
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Teresa Álvarez Y Muñoz
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Mara Medeiros-Domingo
- Servicio de Nefrología, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | | | | | - Onofre Muñoz-Hernández
- Dirección de Investigación, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Rosa Elena Sarmiento-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.
| | - Alicia Sotomayor-González
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - María Elena Trujillo-Ortega
- Departamento de Medicina y Zootecnia de Cerdos, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Montserrat Elemi García-Hernández
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Blanca Itzel Taboada-Ramírez
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Mor. Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| |
Collapse
|
14
|
Martínez-Pérez M, Arenas-Huertero F, Cortés-Eslava J, Morton-Bermea O, Gómez-Arroyo S. Robinsonecio gerberifolius as a sentinel organism for atmospheric pollution by heavy metals in several sites of Mexico city and its metropolitan area. Environ Sci Pollut Res Int 2021; 28:31032-31042. [PMID: 33594571 DOI: 10.1007/s11356-021-12862-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
Evaluate the effect of heavy metals (HM) on sentinel organisms such as vascular plants represent a model to estimate toxic hazard due to environmental pollution. In the present study, the plant Robinsonecio gerberifolius was used to evaluate the toxic effects of the HM contained in the leaves of plants that were exposed to 4 different sites in Mexico city and its metropolitan area, during the rainy and dry seasons in the period 2017-2019. The comet assay to evaluate genotoxicity revealed an increase with respect to control (p < 0.05), in 2nd and 8th week of exposure, in all 4 study sites and in both seasons, more significant in the rainy period. An increase in the induction of oxidative stress was also observed in the exposed leaves from the 4 study sites when compared with the control; in some cases, the increases were significant (p < 0.05). In general, α- and ß-carotenoids were increased at 8th week of exposure, in all plants exposed in both seasons, while miR398 increased in plants exposed in 2 study sites (p < 0.05). Finally, toxic HM like aluminum, vanadium, and cadmium, increased significantly in the rainy season, while lead increased in the dry season. We conclude that R. gerberifolius can be considered a sentinel plant for evaluating the presence and general toxic effects caused by the presence of toxic HM that have been documented in the atmosphere of Mexico City and its metropolitan area.
Collapse
Affiliation(s)
- Mariana Martínez-Pérez
- Laboratorio de Genotoxicología y Mutagénesis Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, México
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Josefina Cortés-Eslava
- Laboratorio de Genotoxicología y Mutagénesis Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, México
| | - Ofelia Morton-Bermea
- Laboratorio de Geomagnetismo y Exploración Geofísica, Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, México
| | - Sandra Gómez-Arroyo
- Laboratorio de Genotoxicología y Mutagénesis Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, México.
| |
Collapse
|
15
|
Fuentes-Zacarias P, Arzate-Castañeda DA, Sosa-González I, Villeda-Gabriel G, Morales-Méndez I, Osorio-Caballero M, Helguera-Repetto AC, Díaz FN, García-López G, Flores-Herrera O, Arenas-Huertero F, Eslava-Campos C, Díaz-Ruíz O, Flores-Herrera H. Pseudomonas aeruginosa induces spatio-temporal secretion of IL-1β, TNFα, proMMP-9, and reduction of epithelial E-cadherin in human alveolar epithelial type II (A549) cells. Acta Biochim Pol 2021; 68:207-215. [PMID: 33945245 DOI: 10.18388/abp.2020_5509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 01/20/2021] [Indexed: 11/10/2022]
Abstract
Pseudomonas aeruginosa, is an opportunistic bacterium with a high prevalence in diverse pulmonary infections. Although several genes are involved in the system of resistance and evasion of the immunological response of the host, little is known about the inflammatory, degradative, and cell-binding response induced by P. aeruginosa in human lung alveolar epithelial cells. The purpose of this study was to determine the cytokine expression (IL-1β and TNFα), pro matrix metalloproteinases activation (proMMP-2 and proMMP-9), and the effects on the cell-binding adhesion protein (E-cadherin) in an in vitro model of human lung alveolar epithelial cells. A549 cells were stimulated with a different number of colony-forming units of P. aeruginosa for 3, 6, and 24 hours. Subsequently, the culture medium was collected, IL-1β and TNFα levels were evaluated by ELISA; proMMP-2 and -9 levels were determined by substrate gel zymography, and the MMP-9 and E-cadherin assessed by immunostaining of A549 cells. Our results demonstrated that P. aeruginosa induces mainly the secretion of TNFα, increases actMMP-9 level, and significantly reduces the level of E-cadherin in the A549 cells. In summary, the inflammatory/degradative process induced by P. aeruginosa modulates the expression of the E-cadherin protein. The probable clinical implications of this study suggest the use of inhibitors that reduce the degradative activity of proMMP-9 which will be further explored in the next phase of this study.
Collapse
Affiliation(s)
- Paulina Fuentes-Zacarias
- Department of Inmunobioquímica, Instituto Nacional de Perinatología "Isidro Espinoza de los Reyes" (INPerIER), Ciudad de México, México
| | - Diego Armando Arzate-Castañeda
- Department of Inmunobioquímica, Instituto Nacional de Perinatología "Isidro Espinoza de los Reyes" (INPerIER), Ciudad de México, México
| | - Irma Sosa-González
- Department of Inmunología e Infectología, INPerIER, Ciudad de México, México
| | | | - Iyari Morales-Méndez
- Department of Inmunobioquímica, Instituto Nacional de Perinatología "Isidro Espinoza de los Reyes" (INPerIER), Ciudad de México, México
| | | | - Addy Cecilia Helguera-Repetto
- Department of Inmunobioquímica, Instituto Nacional de Perinatología "Isidro Espinoza de los Reyes" (INPerIER), Ciudad de México, México
| | - Fabián Nestor Díaz
- Department of Fisiología y Desarrollo Celular, INPerIER, Ciudad de México, México
| | | | | | - Francisco Arenas-Huertero
- Department of Patología Experimental, Hospital Infantil de México "Federico Gómez", Ciudad de México, México
| | - Carlos Eslava-Campos
- Laboratory of Patogenicidad Bacteriana, Unidad de Hemato-Oncología e Investigación, Hospital Infantil de México "Federico Gómez", Ciudad de México, México
| | - Oscar Díaz-Ruíz
- Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Héctor Flores-Herrera
- Department of Inmunobioquímica, Instituto Nacional de Perinatología "Isidro Espinoza de los Reyes" (INPerIER), Ciudad de México, México
| |
Collapse
|
16
|
Zaragoza-Ojeda M, Apatiga-Vega E, Arenas-Huertero F. Role of aryl hydrocarbon receptor in central nervous system tumors: Biological and therapeutic implications. Oncol Lett 2021; 21:460. [PMID: 33907570 PMCID: PMC8063300 DOI: 10.3892/ol.2021.12721] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 01/25/2021] [Indexed: 12/12/2022] Open
Abstract
Aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor, whose canonical pathway mainly regulates the genes involved in xenobiotic metabolism. However, it can also regulate several responses in a non-canonical manner, such as proliferation, differentiation, cell death and cell adhesion. AhR plays an important role in central nervous system tumors, as it can regulate several cellular responses via different pathways. The polymorphisms of the AHR gene have been associated with the development of gliomas. In addition, the metabolism of tumor cells promotes tumor growth, particularly in tryptophan synthesis, where some metabolites, such as kynurenine, can activate the AhR pathway, triggering cell proliferation in astrocytomas, medulloblastomas and glioblastomas. Furthermore, as part of the changes in neuroblastomas, AHR is able to downregulate the expression of proto-oncogene c-Myc, induce differentiation in tumor cells, and cause cell cycle arrest and apoptosis. Collectively, these data suggested that the modulation of the AhR pathway may downregulate tumor growth, providing a novel strategy for applications for the treatment of certain tumors through the control of the AhR pathway.
Collapse
Affiliation(s)
- Montserrat Zaragoza-Ojeda
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, México.,Posgrado en Ciencias Biológicas, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, México
| | - Elisa Apatiga-Vega
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, México
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, México
| |
Collapse
|
17
|
Hernández-López AE, Maya-Miranda G, Arenas-Huertero F, Santos-Medina GL, Valle-Hernández BL, Villalobos-Pietrini R, Palacios-Arreola MI, Amador-Muñoz O. A micro-scale analytical method combined with PTV-GC–MS to determine polycyclic aromatic hydrocarbons in human lungs. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
18
|
Torres-Caballero A, Serrato A, López-Santaella T, Ortiz R, León FCPD, González-Carranza V, Torres-García S, Arenas-Huertero F, Hernández-Hernández A. Evaluation of the melting temperature of TaqMan probes as a genotyping method for IDH1, IDH2, and H3F3A in pediatric astrocytomas. Bol Med Hosp Infant Mex 2020; 77:303-311. [PMID: 33186344 DOI: 10.24875/bmhim.20000092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 11/17/2022] Open
Abstract
Background Astrocytomas are cancer tumors of the central nervous system and represent the most common type of solid tumors during human childhood. In 2016, the World Health Organization established a molecular classification system to regroup tumor entities to achieve a more accurate diagnosis and a better clinical decision-making and selection of treatment in patients with these types of tumors. Methods We evaluated a genotyping assay for rapid and cost-effective mutation detection in astrocytomas using TaqMan probes in an asymmetric polymerase chain reaction (PCR) assay. Results Four diffuse astrocytomas (Grade II), three anaplastic astrocytomas (Grade III), and four glioblastomas (Grade IV) were sequenced, and all of them displayed the wild-type (WT) sequence. We tried to set up this melting analysis for the genotyping of pediatric astrocytomas by identifying the specific melting temperatures of the TaqMan probes due to the presence of the WT sequences in the isocitrate dehydrogenase 1 and 2 (IDH1 and IDH2) and H3.3 histone A genes (H3F3A). We used an IDH1-TaqMan probe to identify the WT status of IDH1 in two different WT deoxyribonucleic acid (DNA) templates (pilocytic and diffuse astrocytoma) and obtained four melting temperature values ranged from 65.6 to 92.2°C. Furthermore, only four out of 29 reactions displayed amplification of the DNA template. Sanger sequencing was faster and more reliable to detect the gene status in all the sequenced samples. Conclusions We conclude that conventional Sanger sequencing remains the gold standard for the genotyping of pediatric astrocytomas.
Collapse
Affiliation(s)
- Aranxa Torres-Caballero
- Unidad de Biología de Células Individuales, Hospital Infantil de México Federico Gómez. Mexico City, Mexico
| | - Amarantha Serrato
- Unidad de Biología de Células Individuales, Hospital Infantil de México Federico Gómez. Mexico City, Mexico
| | - Tayde López-Santaella
- Unidad de Biología de Células Individuales, Hospital Infantil de México Federico Gómez. Mexico City, Mexico
| | - Rosario Ortiz
- Laboratorio de Microscopía Electrónica, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico
| | | | | | - Samuel Torres-García
- Departamento de Neurología, Hospital Infantil de México Federico Gómez. Mexico City, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez. Mexico City, Mexico
| | - Abrahan Hernández-Hernández
- Unidad de Biología de Células Individuales, Hospital Infantil de México Federico Gómez. Mexico City, Mexico.,Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez. Mexico City, Mexico
| |
Collapse
|
19
|
Abstract
Hepatitis E virus produces an emerging health problem, knowledge about epidemiology of hepatitis E virus infections in the USA and Latin America is still limited. The wide-ranging clinical manifestations lead to an extensive underestimation of the global seroprevalence. Clinical and diagnostic accuracy are critical to improve patient management.
Collapse
Affiliation(s)
- Rosa Elena Sarmiento-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, México.
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| |
Collapse
|
20
|
Obregón-Mendoza MA, Arias-Olguín II, Estévez-Carmona MM, Meza-Morales W, Alvarez-Ricardo Y, Toscano RA, Arenas-Huertero F, Cassani J, Enríquez RG. Non-Cytotoxic Dibenzyl and Difluoroborate Curcuminoid Fluorophores Allow Visualization of Nucleus or Cytoplasm in Bioimaging. Molecules 2020; 25:molecules25143205. [PMID: 32674349 PMCID: PMC7397183 DOI: 10.3390/molecules25143205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/27/2020] [Revised: 07/10/2020] [Accepted: 07/11/2020] [Indexed: 01/27/2023] Open
Abstract
Curcumin, the most important secondary metabolite isolated from Curcuma longa, is known for its numerous purported therapeutic properties and as a natural dye. Herein, based on curcumin's intrinsic fluorescence, a search for improved curcumin-based fluorophores was conducted. Within the set of semi-synthetic curcumin derivatives i.e. mono (1), di (2), tri (3), tetra (4) benzylated and dibenzyl-fluoroborate (5), the fluorescence properties of 2 and 5 in solution outstood with a two-fold quantum yield compared to curcumin. Furthermore, all benzylated derivatives showed a favorable minimal cytotoxic activity upon screening at 25 μM against human cancer and non-tumoral COS-7 cell lines, with a reduction of its cytotoxic effect related to the degree of substitution. Fluorophores 2 and 5 are versatile bioimaging tools, as revealed by Confocal Fluorescence Microscopy (CFM), and showed permeation of living cell membranes of astrocytes and astrocytomas. When 2 is excited with a 405- (blue) or 543-nm (green) laser, it is possible to exclusively and intensively visualize the nucleus. However, the fluorescence emission fades as the laser wavelength moves towards the red region. In comparison, 5 allows selective visualization of cytoplasm when a 560-nm laser is used, showing emission in the NIR region, while it is possible to exclusively observe the nucleus at the blue region with a 405-nm laser.
Collapse
Affiliation(s)
- Marco A. Obregón-Mendoza
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, Mexico; (M.A.O.-M.); (I.I.A.-O.); (W.M.-M.); (Y.A.-R.); (R.A.T.)
| | - Imilla I. Arias-Olguín
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, Mexico; (M.A.O.-M.); (I.I.A.-O.); (W.M.-M.); (Y.A.-R.); (R.A.T.)
| | - M. Mirian Estévez-Carmona
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Wilfrido Massieu SN, Ciudad de México 07738, Mexico;
| | - William Meza-Morales
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, Mexico; (M.A.O.-M.); (I.I.A.-O.); (W.M.-M.); (Y.A.-R.); (R.A.T.)
| | - Yair Alvarez-Ricardo
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, Mexico; (M.A.O.-M.); (I.I.A.-O.); (W.M.-M.); (Y.A.-R.); (R.A.T.)
| | - Rubén A. Toscano
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, Mexico; (M.A.O.-M.); (I.I.A.-O.); (W.M.-M.); (Y.A.-R.); (R.A.T.)
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México 06720, Mexico;
| | - Julia Cassani
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana, Unidad Xochimilco, Ciudad de México 04960, Mexico;
| | - Raúl G. Enríquez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, Mexico; (M.A.O.-M.); (I.I.A.-O.); (W.M.-M.); (Y.A.-R.); (R.A.T.)
- Correspondence: ; Tel.: +52-55-5622-4404
| |
Collapse
|
21
|
Arenas-Huertero F, Zaragoza-Ojeda M, Sánchez-Alarcón J, Milić M, Šegvić Klarić M, Montiel-González JM, Valencia-Quintana R. Involvement of Ahr Pathway in Toxicity of Aflatoxins and Other Mycotoxins. Front Microbiol 2019; 10:2347. [PMID: 31681212 PMCID: PMC6798329 DOI: 10.3389/fmicb.2019.02347] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 09/26/2019] [Indexed: 12/18/2022] Open
Abstract
The purpose of this review is to present information about the role of activation of aflatoxins and other mycotoxins, of the aryl hydrocarbon receptor (AhR) pathway. Aflatoxins and other mycotoxins are a diverse group of secondary metabolites that can be contaminants in a broad range of agricultural products and feeds. Some species of Aspergillus, Alternaria, Penicilium, and Fusarium are major producers of mycotoxins, some of which are toxic and carcinogenic. Several aflatoxins are planar molecules that can activate the AhR. AhR participates in the detoxification of several xenobiotic substances and activates phase I and phase II detoxification pathways. But it is important to recognize that AhR activation also affects differentiation, cell adhesion, proliferation, and immune response among others. Any examination of the effects of aflatoxins and other toxins that act as activators to AhR must consider the potential of the disruption of several cellular functions in order to extend the perception thus far about the toxic and carcinogenic effects of these toxins. There have been no Reviews of existing data between the relation of AhR and aflatoxins and this one attempts to give information precisely about this dichotomy.
Collapse
Affiliation(s)
- Francisco Arenas-Huertero
- Experimental Pathology Research Laboratory, Children’s Hospital of Mexico Federico Gómez, Mexico, Mexico
| | - Montserrat Zaragoza-Ojeda
- Experimental Pathology Research Laboratory, Children’s Hospital of Mexico Federico Gómez, Mexico, Mexico
| | - Juana Sánchez-Alarcón
- Rafael Villalobos-Pietrini Laboratory of Genomic Toxicology and Environmental Chemistry, Faculty of Agrobiology, Autonomous University of Tlaxcala, Tlaxcala, Mexico
| | - Mirta Milić
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Maja Šegvić Klarić
- Department of Microbiology, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - José M. Montiel-González
- Rafael Villalobos-Pietrini Laboratory of Genomic Toxicology and Environmental Chemistry, Faculty of Agrobiology, Autonomous University of Tlaxcala, Tlaxcala, Mexico
| | - Rafael Valencia-Quintana
- Rafael Villalobos-Pietrini Laboratory of Genomic Toxicology and Environmental Chemistry, Faculty of Agrobiology, Autonomous University of Tlaxcala, Tlaxcala, Mexico
| |
Collapse
|
22
|
Castro-Gálvez Z, Garrido-Armas M, Palacios-Arreola MI, Torres-Flores U, Rivera-Torruco G, Valle-Rios R, Amador-Muñoz O, Hernández-Hernández A, Arenas-Huertero F. Cytotoxic and genotoxic effects of Benzo[ghi]perylene on the human bronchial cell line NL-20. Toxicol In Vitro 2019; 61:104645. [PMID: 31518672 DOI: 10.1016/j.tiv.2019.104645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 03/13/2019] [Revised: 07/26/2019] [Accepted: 09/07/2019] [Indexed: 10/26/2022]
Abstract
Benzo[ghi]perylene is the most abundant polycyclic aromatic hydrocarbon in the atmosphere of highly polluted cities with high altitudes like Mexico City. We evaluated the in vitro cytotoxic and genotoxic effects that Benzo[ghi]perylene could induce to the bronchial cell line NL-20 after 3 h of exposure. Furthermore, exposed cells were washed and maintained for 24 h without the treatment (recovery time), in order to evaluate a persistent damage to the cells. We found that at 3 h of exposure, 20% and 47% of the cells displayed cytoplasmic vesicles (p <0.05) and ɣH2AX foci in the nuclei (p <0.05), respectively. Furthermore, 27% of cells showed translocation of the factor inductor apoptosis into the nuclei (p <0.05) and an increase of proliferating cells was also observed (21%, p <0.05). The cells after recovery time continued displaying morphological changes and ɣH2AX foci, despite of the increased expression (> 2-times fold change) of some DNA repair genes (p <0.05) found before the recovery time. We also found that the cell nuclei contained Benzo[ghi]perylene after the exposure and it remains there after the recovery time (p <0.01). Therefore, hereby we report the cytotoxic and genotoxic effects that Benzo[ghi]perylene is capable to induce to NL-20 cells.
Collapse
Affiliation(s)
- Zelmy Castro-Gálvez
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico
| | - Mónika Garrido-Armas
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico
| | - Margarita Isabel Palacios-Arreola
- Laboratorio de Especiación Química de Aerosoles Orgánicos Atmosféricos y Desarrollo de Tecnologías Verdes, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Ulises Torres-Flores
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico
| | - Guadalupe Rivera-Torruco
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Dr. Márquez 162, Colonia Doctores, 06720 Ciudad de México, Mexico; Unidad Universitaria de Investigación, División de Investigación, Facultad de Medicina de la Universidad Nacional Autónoma de México (UNAM), Mexico; Departamento de Fisiología y Neurociencias, Centro de Investigación y de Estudios Avanzados (CINVESTAV), Mexico
| | - Ricardo Valle-Rios
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Dr. Márquez 162, Colonia Doctores, 06720 Ciudad de México, Mexico; Unidad Universitaria de Investigación, División de Investigación, Facultad de Medicina de la Universidad Nacional Autónoma de México (UNAM), Mexico
| | - Omar Amador-Muñoz
- Laboratorio de Especiación Química de Aerosoles Orgánicos Atmosféricos y Desarrollo de Tecnologías Verdes, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Abrahan Hernández-Hernández
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico; Unidad de Biología de Células Individuales (Biocelin), Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico.
| |
Collapse
|
23
|
Cortés-Márquez AC, Mendoza-Elizalde S, Arenas-Huertero F, Trillo-Tinoco J, Valencia-Mayoral P, Consuelo-Sánchez A, Zarate-Franco J, Dionicio-Avendaño AR, Herrera-Esquivel JDJ, Recinos-Carrera EG, Colín-Valverde C, Rivera-Gutiérrez S, Reyes-López A, Vigueras-Galindo JC, Velázquez-Guadarrama N. Differential expression of miRNA-146a and miRNA-155 in gastritis induced by Helicobacter pylori infection in paediatric patients, adults, and an animal model. BMC Infect Dis 2018; 18:463. [PMID: 30219037 PMCID: PMC6139157 DOI: 10.1186/s12879-018-3368-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 08/30/2018] [Indexed: 01/03/2023] Open
Abstract
Background Helicobacter pylori is a major aetiologic agent associated with gastritis. H. pylori infections increase the expression of the Toll-like receptor (TLR), which in turn modulates the expression of microRNA (miRNA)-146a and miRNA-155. The objective of this study was to compare the expression of miRNA-146a and miRNA-155 in gastric lesions of paediatric and adult patients with different pathologies and in Mongolian gerbils (Meriones unguiculatus) infected with H. pylori 26,695. Methods Quantification of miRNA expression was performed by quantitative real-time polymerase chain reaction (qRT-PCR) of paraffin-embedded gastric lesions of children with or without an infection (n = 25), adults with follicular gastritis and metaplasia (n = 32) and eight-week-old M. unguiculatus males (Hsd:MON) infected with H. pylori 26,695 for 0, 3, 6, 12 and 18 months (n = 25). The genes RNU48 and RNU6 were used as endogenous controls for data normalization. Statistical analyses were performed using Kruskal-Wallis, Mann-Whitney, ANOVA and Student’s t-test. Results The expression of miRNA-146a and miRNA-155 in infected children increased by 247.6- and 79.4-fold (on average), respectively, compared to that observed in the control group. However, these results were not significant (p = 0.12 and p = 0.07 respectively). In some children a gradual increase in expression was observed, while in others, expression was very high. Additionally, the expression levels of miRNA-146a and miRNA-155 increased by an average of 21.7- and 62-fold, respectively, in adult patients with follicular gastritis when compared to those of the controls. In M. unguiculatus infected with H. pylori 26,695, the expression of both miRNAs increased as the infection progressed. Conclusion This is the first report to show differences in the expression of miRNA-146a and miRNA-155 in paediatric and adult patients with gastritis who were infected with H. pylori. In addition, in M. unguiculatus infected with H. pylori, miRNA expression was associated with the progression of infection and the ability of the bacteria to adapt to the host. Electronic supplementary material The online version of this article (10.1186/s12879-018-3368-2) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Ana Caren Cortés-Márquez
- Infectology Laboratory, Hospital Infantil de México Federico Gómez, México City, Mexico.,Biomedicine and Molecular Biotechnology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, Mexico.,Molecular Microbiology Laboratory, Microbiology Department, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, Mexico
| | | | - Francisco Arenas-Huertero
- Laboratory of Research in Experimental Pathology, Hospital Infantil de México Federico Gómez, México City, Mexico
| | | | | | - Alejandra Consuelo-Sánchez
- Gastroenterology and Nutrition Department, Hospital Infantil de México Federico Gómez, México City, Mexico
| | - Jonathan Zarate-Franco
- Health Science, Escuela Superior de Medicina, Instituto Politécnico Nacional, México City, Mexico
| | | | | | | | | | - Sandra Rivera-Gutiérrez
- Molecular Microbiology Laboratory, Microbiology Department, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, Mexico
| | - Alfonso Reyes-López
- Center of Economic and Social Studies in Health, Hospital Infantil de México Federico Gómez, México City, Mexico
| | | | | |
Collapse
|
24
|
Garrido-Armas M, Corona JC, Escobar ML, Torres L, Ordóñez-Romero F, Hernández-Hernández A, Arenas-Huertero F. Paraptosis in human glioblastoma cell line induced by curcumin. Toxicol In Vitro 2018; 51:63-73. [PMID: 29723631 DOI: 10.1016/j.tiv.2018.04.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [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: 09/18/2017] [Revised: 04/27/2018] [Accepted: 04/28/2018] [Indexed: 12/20/2022]
Abstract
Curcumin is a polyphenol compound extracted from Curcuma longa plant, is a molecule with pleiotropic effects that suppresses transformation, proliferation and metastasis of malignant tumors. Curcumin can cause different kinds of cell death depending of its concentration on the exposed cell type. Here we show that exposure of the glioblastoma cell line A172 to curcumin at 50 μM, the IC50, causes morphological change characteristic of paraptosis cell-death. Vesicles derived from the endoplasmic reticulum (ER) and low membrane potential of the mitochondria were constantly found in the exposed cells. Furthermore, changes in expression of the ER Stress Response (ERSR) genes IRE1 and ATF6, and the microRNAs (miRNAs) miR-27a, miR-222, miR-449 was observed after exposure to curcumin. AKT-Insulin and p53-BCL2 networks were predicted being modulated by the affected miRNAs. Furthermore, AKT protein levels reduction was confirmed. Our data, strongly suggest that curcumin exerts its cell-death properties by affecting the integrity of the reticulum, leading to paraptosis in the glioblastoma cells. These data unveils the versatility of curcumin to control cancer progression.
Collapse
Affiliation(s)
| | - Juan Carlos Corona
- Laboratorio de Neurociencias, Hospital Infantil de México Federico Gómez, Av. Dr. Márquez 162. Colonia Doctores, C.P. 06720 Ciudad de México, Mexico
| | - Maria Luisa Escobar
- Departamento de Biología Celular, Laboratorio de Microscopía Electrónica, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), Av. Universidad 3000, Circuito Exterior S/N Delegación Coyoacán, C.P. 04510. Ciudad Universitaria, Ciudad de México, México
| | - Leda Torres
- Laboratorio de Citogenética, Departamento de Investigación en Genética Humana, Instituto Nacional de Pediatría, Av. Insurgentes Sur 3700, Letra C, Col. Insurgentes Cuicuilco, Delegación Coyoacán, C.P. 04530 Ciudad de México, México
| | | | | | | |
Collapse
|
25
|
Gómez-Arroyo S, Barba-García A, Arenas-Huertero F, Cortés-Eslava J, de la Mora MG, García-Martínez R. Indicators of environmental contamination by heavy metals in leaves of Taraxacum officinale in two zones of the metropolitan area of Mexico City. Environ Sci Pollut Res Int 2018; 25:4739-4749. [PMID: 29197063 DOI: 10.1007/s11356-017-0809-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 11/20/2017] [Indexed: 06/07/2023]
Abstract
The present study was designed to detect the effect of heavy metals in two zones of the Metropolitan Area of Mexico City (MAMC), the Centro de Ciencias de la Atmósfera (CCA), and the Altzomoni station in the Iztaccíhuatl-Popocatépetl National Park. Taraxacum officinale was selected as the indicator organism of responses to atmospheric contamination by heavy metals. Determinations of heavy metals were performed, and total mRNA was extracted to quantify the expression of microRNA398 (miR398), superoxide dismutase 2 (CSD2), and the amounts of free radicals using the bromide of 3-(4,5-dimethylthiazole-2-ilo)-2,5-diphenyltetrazole (MTT) salts reduction assay. Results from the Altzomoni station showed high concentrations of five heavy metals, especially Aluminum, while three heavy metals were identified in the CCA-UNAM zone, most importantly, Vanadium, both in the dry season; miR398 expression presented subtle changes but was greater in the leaves from the stations with higher concentrations of heavy metals. Observations included a significant expression of CSD2, mainly in the dry season in both study zones, where levels were significant with respect to controls (p < 0.05). Reduced MTT was also higher in the dry season than in the rainy season (p < 0.05). In conclusion, the increase in heavy metals on the leaves of Taraxacum officinale induces increased expression of the CSD2 gene and reduced MTT; thus, they can be used as indicators for biomonitoring heavy metal concentrations.
Collapse
Affiliation(s)
- Sandra Gómez-Arroyo
- Laboratorio de Genotoxicología Ambiental, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, Mexico.
| | - Arisbel Barba-García
- Laboratorio de Genotoxicología Ambiental, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Josefina Cortés-Eslava
- Laboratorio de Genotoxicología Ambiental, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, Mexico
| | - Michel Grutter de la Mora
- Laboratorio de Espectroscopía y Percepción Remota, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, Mexico
| | - Rocío García-Martínez
- Laboratorio de Aerosoles Atmosféricos, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, Mexico
| |
Collapse
|
26
|
Eguía-Aguilar P, Gutiérrez-Castillo L, Pérezpeña-Díazconti M, García-Chéquer J, García-Quintana J, Chico-Ponce de León F, Gordillo-Domínguez L, Torres-García S, Arenas-Huertero F. Expression of microRNAs in tumors of the central nervous system in pediatric patients in México. Childs Nerv Syst 2017; 33:2117-2128. [PMID: 28815380 DOI: 10.1007/s00381-017-3569-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 01/03/2017] [Accepted: 08/04/2017] [Indexed: 12/11/2022]
Abstract
PURPOSE MicroRNAs were identified as molecules that participate in gene regulation; alterations in their expression characterize central nervous system (CNS). Information in pediatrics is scarce, so the objective of this work was to determine and then compare the patterns of expression of microRNAs in astrocytomas, ependymomas, and medulloblastomas, as well as in non-neoplastic brain. METHODS Low-density arrays were utilized to evaluate 756 microRNAs in three samples of each type of tumor and non-neoplastic brain. The relative expression was calculated in order to identify the three microRNAs whose expression was modified notably. This was verified using RT-qPCR in more number of tumor samples. RESULTS The microRNAs selected for testing were miR-100-5p, miR-195-5p, and miR-770-5p. A higher expression of miR-100-5p was observed in the astrocytomas and ependymomas compared to the medulloblastomas: on average 3.8 times (p < 0.05). MiR-770-5p was expressed less in medulloblastomas compared to astrocytomas four times (p = 0.0162). MiR-195-5p had a low expression in medulloblastomas compared to non-neoplastic cerebellum (p = 0.049). In all three tumor types, expression of miR-770-5p was lower than in non-neoplastic brain (p < 0.001). CONCLUSIONS These microRNAs may represent potential markers in these tumors.
Collapse
Affiliation(s)
- Pilar Eguía-Aguilar
- Departmento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Lisette Gutiérrez-Castillo
- Departmento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México.,Facultad de Ciencia y Tecnología, Universidad Simón Bolívar, Ciudad de México, México
| | - Mario Pérezpeña-Díazconti
- Departmento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Jeanette García-Chéquer
- Departmento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Jorge García-Quintana
- Departmento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | | | - Luis Gordillo-Domínguez
- Departmento de Neurocirugía, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Samuel Torres-García
- Departmento de Neurocirugía, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Francisco Arenas-Huertero
- Facultad de Ciencia y Tecnología, Universidad Simón Bolívar, Ciudad de México, México. .,Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez-Instituto Nacional de Salud, Dr. Márquez 162, Colonia Doctores, Delegación Cuauhtémoc, 06720, Ciudad de México, México.
| |
Collapse
|
27
|
Lamadrid-Romero M, Solís KH, Cruz-Reséndiz MS, Pérez JE, Díaz NF, Flores-Herrera H, García-López G, Perichart O, Reyes-Muñoz E, Arenas-Huertero F, Eguía-Aguilar P, Molina-Hernández A. Central nervous system development-related microRNAs levels increase in the serum of gestational diabetic women during the first trimester of pregnancy. Neurosci Res 2017; 130:8-22. [PMID: 28803788 DOI: 10.1016/j.neures.2017.08.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [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: 04/26/2017] [Revised: 08/03/2017] [Accepted: 08/07/2017] [Indexed: 01/14/2023]
Abstract
MicroRNAs are heterochronic molecules important during brain development, which could be altered by gestational diabetes mellitus (GDM). To explore these molecules in maternal serum, we performed an RT-qPCR analysis. Our results revealed the heterochronic character of some neural development-related microRNA in serum samples of pregnant women. In relation to the first trimester, higher levels of miR-183-5p, -200b-3p, and -125-5p in the second trimester, and higher levels of miR-137 in the third trimester, were found. Furthermore, an insult such as GDM led to higher levels of miR-183-5p, -200b-3p, -125-5p, and -1290 relative to the control in the first trimester, which might be related to changes in neurogenesis and cell proliferation. An in silico analysis suggested that increased microRNAs in the second trimester in the control contributed to cell proliferation and neuron differentiation and that the rise in miR-137 in the third trimester led to neuron maturation. In the diabetic, higher levels of the microRNAs in the first trimester suggested alterations in cell proliferation and neuron differentiation. In conclusion, we showed that fetal-related microRNAs can be detected in the serum of pregnant woman and exhibit temporary regulation during pregnancy and that microRNAs involved in cell proliferation and neuron differentiation are upregulated under GDM.
Collapse
Affiliation(s)
- M Lamadrid-Romero
- Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes", Departamento de Fisiología y Desarrollo Celular (Laboratorio de Investigación en Células Troncales y Biología del Desarrollo), Mexico; Posgrado en Ciencias Biológicas, Facultad de Ciencias-UNAM, Ciudad de México, Mexico
| | - K H Solís
- Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes", Departamento de Fisiología y Desarrollo Celular (Laboratorio de Investigación en Células Troncales y Biología del Desarrollo), Mexico
| | - M S Cruz-Reséndiz
- Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes", Departamento de Fisiología y Desarrollo Celular (Laboratorio de Investigación en Células Troncales y Biología del Desarrollo), Mexico; Posgrado en Ciencias Biológicas, Facultad de Ciencias-UNAM, Ciudad de México, Mexico
| | - J E Pérez
- Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes", Departamento de Fisiología y Desarrollo Celular (Laboratorio de Investigación en Células Troncales y Biología del Desarrollo), Mexico
| | - N F Díaz
- Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes", Departamento de Fisiología y Desarrollo Celular (Laboratorio de Investigación en Células Troncales y Biología del Desarrollo), Mexico
| | - H Flores-Herrera
- Instituto Nacional de Perinatología "Isidro Espinosa de Los Reyes", Departamento de Inmunobioquímica, Mexico
| | - G García-López
- Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes", Departamento de Fisiología y Desarrollo Celular (Laboratorio de Investigación en Células Troncales y Biología del Desarrollo), Mexico
| | - O Perichart
- Instituto Nacional de Perinatología "Isidro Espinosa de Los Reyes", Departamento de Nutrición, Mexico
| | - E Reyes-Muñoz
- Instituto Nacional de Perinatología "Isidro Espinosa de Los Reyes", Departamento de Endocrionología, Mexico
| | - F Arenas-Huertero
- Hospital Infantil de México "Federico Gómez", Laboratorio de Investigación en Patología Experimental, Mexico
| | - P Eguía-Aguilar
- Hospital Infantil de México "Federico Gómez", Departamento de Patología, Mexico
| | - A Molina-Hernández
- Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes", Departamento de Fisiología y Desarrollo Celular (Laboratorio de Investigación en Células Troncales y Biología del Desarrollo), Mexico.
| |
Collapse
|
28
|
Mendoza-Elizalde S, Arteaga-Resendiz NK, Valencia-Mayoral P, Luna RC, Moreno-Espinosa S, Arenas-Huertero F, Zúñiga G, Velázquez-Guadarrama N. Diversification of the vacAs1m1 and vacAs2m2 Strains of Helicobacter pylori in Meriones unguiculatus. Front Microbiol 2016; 7:1758. [PMID: 27877163 PMCID: PMC5100360 DOI: 10.3389/fmicb.2016.01758] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 10/19/2016] [Indexed: 01/14/2023] Open
Abstract
The bacterium Helicobacter pylori exhibits great genetic diversity, and the pathogenic roles of its virulence factors have been widely studied. However, the evolutionary dynamics of H. pylori strains during stomach colonization are not well-characterized. Here, we analyzed the microevolutionary dynamics of the toxigenic strain vacAs1m1, the non-toxigenic strain vacAs2m2, and a combination of both strains in an animal model over time. Meriones unguiculatus were inoculated with the following bacteria: group 1-toxigenic strain vacAs1m1/cagA+/cagE+/babA2+; ST181, group 2-non-toxigenic strain vacAs2m2/cagA+/cagE+/babA2+; ST2901, and group 3-both strains. The gerbils were euthanized at different time points (3, 6, 12, and 18 months). In group 1, genetic alterations were observed at 6 and 12 months. With the combination of both strains, group 3 also exhibited genetic alterations at 3 and 18 months; moreover, a chimera, vacA m1-m2, was detected. Additionally, four new sequence types (STs) were reported in the PubMLST database for H. pylori. Synonymous and non-synonymous mutations were analyzed and associated with alterations in amino acids. Microevolutionary analysis of the STs (PHYLOViZ) identified in each group revealed many mutational changes in the toxigenic (vacAs1m1) and non-toxigenic (vacAs2m2) strains. Phylogenetic assessments (eBURST) did not reveal clonal complexes. Our findings indicate that the toxigenic strain, vacAs1m1, and a combination of toxigenic and non-toxigenic strains acquired genetic material by recombination. The allelic combination, vacAs2m1, displayed the best adaptation in the animal model over time, and a chimera, m1-m2, was also identified, which confirmed previous reports.
Collapse
Affiliation(s)
- Sandra Mendoza-Elizalde
- Laboratorio de Infectología, Departamento de Infectologia, Hospital Infantil de México Federico GómezCiudad de México, Mexico; Posgrado en Ciencias Químicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico NacionalCiudad de México, Mexico; Laboratorio de Variación Biológica y Evolución, Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico NacionalCiudad de México, Mexico
| | - Nancy K Arteaga-Resendiz
- Laboratorio de Infectología, Departamento de Infectologia, Hospital Infantil de México Federico GómezCiudad de México, Mexico; Posgrado en Ciencias en Biomedicina y Biotecnología Molecular, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico NacionalCiudad de México, Mexico
| | - Pedro Valencia-Mayoral
- Dirección de Planeación, Hospital Infantil de México Federico Gómez Ciudad de México, Mexico
| | - Raúl C Luna
- Bioterio, Hospital Infantil de México Federico Gómez Ciudad de México, Mexico
| | - Sarbelio Moreno-Espinosa
- Laboratorio de Infectología, Departamento de Infectologia, Hospital Infantil de México Federico Gómez Ciudad de México, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez Ciudad de México, Mexico
| | - Gerardo Zúñiga
- Laboratorio de Variación Biológica y Evolución, Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional Ciudad de México, Mexico
| | - Norma Velázquez-Guadarrama
- Laboratorio de Infectología, Departamento de Infectologia, Hospital Infantil de México Federico Gómez Ciudad de México, Mexico
| |
Collapse
|
29
|
Zaragoza-Ojeda M, Eguía-Aguilar P, Perezpeña-Díazconti M, Arenas-Huertero F. Benzo[ghi]perylene activates the AHR pathway to exert biological effects on the NL-20 human bronchial cell line. Toxicol Lett 2016; 256:64-76. [DOI: 10.1016/j.toxlet.2016.05.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 05/17/2016] [Accepted: 05/24/2016] [Indexed: 02/08/2023]
|
30
|
Arteaga-Gómez E, Rodríguez-Levis A, Cortés-Eslava J, Arenas-Huertero F, Valencia-Quintana R, Gómez-Arroyo S. Cytogenotoxicity of selected organophosphate insecticides on HaCaT keratinocytes and NL-20 human bronchial cells. Chemosphere 2016; 145:174-184. [PMID: 26688254 DOI: 10.1016/j.chemosphere.2015.11.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 09/14/2015] [Accepted: 11/15/2015] [Indexed: 06/05/2023]
Abstract
Organophosphate insecticides (OI) are widely used. To humans the main routes of exposure are skin and inhalation. For this, keratinocytes (HaCaT) and bronchial cells (NL-20) were used as cell culture models to evaluate the effects of OI. The aim of this study was to evaluate the effect of four OI on HaCaT and NL-20 cells: azinphos-methyl, (AM); parathion-methyl (PM); omethoate (OM); and methamidophos (MET). Cells were exposed to 0.1, 1 and 10 μg/μL of each. Results showed a decrease in cell viability in both cell lines. Viability of the NL-20 cell line decreased with the three concentrations of OM. All differences were significant (p < 0.05). Genotoxic damage, evaluated through the comet assay, was observed in both cell lines with AM. NL-20 cell line was more sensitive than HaCaT. Higher concentrations of the insecticides except MET, induced cell death. MET caused DNA damage in HaCaT cells at all concentrations. Differences were significant (p < 0.05). Both cell lines revealed the presence of single membrane vacuoles of different sizes when exposed to 1 μg/μL of each insecticide. Quantitative real time-polymerase chain reaction (RT-qPCR) showed an increase of BN1 gene in HaCaT by effect of AM and MET at 1 μg/μL. In conclusion, all the insecticides induced different levels of cyto and genotoxic effects in both cell lines.
Collapse
Affiliation(s)
- Eduardo Arteaga-Gómez
- Laboratorio de Investigación en Patología Experimental, Departamento de Patología, Hospital Infantil de México Federico Gómez, Dr. Márquez 162, Colonia Doctores, 06720, México, D.F., Mexico
| | - Alejandra Rodríguez-Levis
- Laboratorio de Microscopía Electrónica, Departamento de Patología, Hospital Infantil de México Federico Gómez, Dr. Márquez 162, Colonia Doctores, 06720, México, D.F., Mexico
| | - Josefina Cortés-Eslava
- Laboratorio de Genotoxicología Ambiental, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, México, D.F., Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Departamento de Patología, Hospital Infantil de México Federico Gómez, Dr. Márquez 162, Colonia Doctores, 06720, México, D.F., Mexico
| | - Rafael Valencia-Quintana
- Facultad de Agrobiología, Universidad Autónoma de Tlaxcala, Av. Universidad No. 1, Col. La Loma X, Tlaxcala, Mexico
| | - Sandra Gómez-Arroyo
- Laboratorio de Genotoxicología Ambiental, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, México, D.F., Mexico.
| |
Collapse
|
31
|
de León FCP, Gordillo-Domínguez LF, González-Carranza V, Torres-García S, García-Delgado C, Sánchez-Boiso A, Arenas-Huertero F, Perezpeña-Diazconti M, Eguía-Aguilar P, Baqueiro-Hernández C, Buenrostro-Márquez G, Martínez-Rodríguez S, Dhellemmes P, Castro-Sierra E. Brachmann-Cornelia de Lange syndrome with a papilloma of the choroid plexus: analyses of molecular genetic characteristics of the patient and the tumor. A single-case study. Childs Nerv Syst 2015; 31:141-6. [PMID: 25064129 DOI: 10.1007/s00381-014-2504-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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] [Received: 06/05/2014] [Accepted: 07/18/2014] [Indexed: 10/25/2022]
Abstract
PURPOSE A 10-month-old girl with a Brachmann-Cornelia de Lange syndrome and a choroid plexus papilloma of the brain was studied at the Hospital Infantil de México Federico Gómez (HIMFG) in Mexico City. METHODS AND RESULTS Presumptive papilloma of the third ventricle was evidenced on CT and MR images and removed. Pathological analysis confirmed its origin. A posterior radiosurgery was required due to a tumor relapse. Karyotypes (GTG bands) of the patient and her parents undertaken at HIMFG were normal. Array comparative genomic hybridization (array CGH) analyses of blood DNA of the patient and her parents carried out at BlueGnome's Laboratory in Cambridge, UK, set in evidence amplification of genes SPNS2, GGT6, SMTNL2, PELP1, MYBBP1A, and ALOX15 in chromosome 17p of the patient. Since MYBBP1A is a proto-oncogene and ALOX15 participates in the development of cancer and metastases of tumors, further fluorescent in situ hybridization (FISH) analyses of these two genes were implemented at HIMFG. Amplification of the two genes was found in the tumor of the case under study but not in an unrelated papilloma of the choroid plexus. DISCUSSION Further analyses of the association of choroid plexus papillomas with disorders of psycho-neural development and its relationship to molecular genetic modifications at chromosome 17p are now under way at HIMFG.
Collapse
|
32
|
Valencia-Quintana R, Sánchez-Alarcón J, Tenorio-Arvide MG, Deng Y, Montiel-González JMR, Gómez-Arroyo S, Villalobos-Pietrini R, Cortés-Eslava J, Flores-Márquez AR, Arenas-Huertero F. The microRNAs as potential biomarkers for predicting the onset of aflatoxin exposure in human beings: a review. Front Microbiol 2014; 5:102. [PMID: 24672518 PMCID: PMC3957091 DOI: 10.3389/fmicb.2014.00102] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 02/26/2014] [Indexed: 12/21/2022] Open
Abstract
The identification of aflatoxins as human carcinogens has stimulated extensive research efforts, which continue to the present, to assess potential health hazards resulting from contamination of the human food supply and to minimize exposure. The use of biomarkers that are mechanistically supported by toxicological studies will be important tools for identifying stages in the progression of development of the health effects of environmental agents. miRNAs are small non-coding mRNAs that regulate post-transcriptional gene expression. Also, they are molecular markers of cellular responses to various chemical agents. Growing evidence has demonstrated that environmental chemicals can induce changes in miRNA expression. miRNAs are good biomarkers because they are well defined, chemically uniform, restricted to a manageable number of species, and stable in cells and in the circulation. miRNAs have been used as serological markers of HCC and other tumors. The expression patterns of different miRNAs can distinguish among HCC-hepatitis viruses related, HCC cirrhosis-derivate, and HCC unrelated to either of them. The main objective of this review is to find unreported miRNAs in HCC related to other causes, so that they can be used as specific molecular biomarkers in populations exposed to aflatoxins and as early markers of exposure, damage/presence of HCC. Until today specific miRNAs as markers for aflatoxins-exposure and their reliability are currently lacking. Based on their elucidated mechanisms of action, potential miRNAs that could serve as possible markers of HCC by exposure to aflatoxins are miR-27a, miR-27b, miR-122, miR-148, miR-155, miR-192, miR-214, miR-221, miR-429, and miR-500. Future validation for all of these miRNAs will be needed to assess their prognostic significance and confirm their relationship with the induction of HCC due to aflatoxin exposure.
Collapse
Affiliation(s)
- Rafael Valencia-Quintana
- Evaluación de Riesgos Ambientales, Facultad de Agrobiología, Universidad Autónoma de Tlaxcala Tlaxcala, México
| | - Juana Sánchez-Alarcón
- Evaluación de Riesgos Ambientales, Facultad de Agrobiología, Universidad Autónoma de Tlaxcala Tlaxcala, México
| | - María G Tenorio-Arvide
- Departamento de Investigación en Ciencias Agrícolas, Benemérita Universidad Autónoma de Puebla Puebla, México
| | - Youjun Deng
- Department of Soil and Crop Sciences, Texas AgriLife, Texas A&M University College Station, TX, USA
| | - José M R Montiel-González
- Evaluación de Riesgos Ambientales, Facultad de Agrobiología, Universidad Autónoma de Tlaxcala Tlaxcala, México
| | - Sandra Gómez-Arroyo
- Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México Distrito Federal, México
| | - Rafael Villalobos-Pietrini
- Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México Distrito Federal, México
| | - Josefina Cortés-Eslava
- Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México Distrito Federal, México
| | - Ana R Flores-Márquez
- Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México Distrito Federal, México
| | - Francisco Arenas-Huertero
- Laboratorio de Patología Experimental, Hospital Infantil de México Federico Gómez Distrito Federal, México
| |
Collapse
|
33
|
Romero-Hernández MA, Eguía-Aguilar P, Perézpeña-DiazConti M, Rodríguez-Leviz A, Sadowinski-Pine S, Velasco-Rodríguez LA, Cáceres-Cortés JR, Arenas-Huertero F. Toxic effects induced by curcumin in human astrocytoma cell lines. Toxicol Mech Methods 2013; 23:650-9. [PMID: 23889520 DOI: 10.3109/15376516.2013.826768] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The objective of this study was to describe the toxicity induced by curcumin in human astrocytoma cell lines. METHODS The effects induced by curcumin, at 100 µM for 24 h, were evaluated in four astrocytoma cell lines using crystal violet assay and through the evaluation of morphological and ultrastructural changes by electron microscopy. Also, the results of vital staining with acridine orange and propidium iodide for acidic vesicles and apoptotic bodies were analyzed and the expression of the Beclin1 gene was assessed by RT-PCR. RESULTS The cells treated with curcumin at 100 µM induced an inhibitory concentration50 of viability with morphological changes characterized by a progressive increase in large, non-acidic vesicles devoid of cytoplasmic components and organelles, but that conserved the cell nuclei. No DNA breakage was observed. The astrocytoma cells showed no apoptosis, necrosis or autophagy. Expression of BECLIN1 was not induced (p < 0.05) by curcumin in the astrocytoma cells. CONCLUSIONS Curcumin at 100 µm induced a new type of death cell in astrocytoma cell lines.
Collapse
Affiliation(s)
- Mirna A Romero-Hernández
- Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Colonia Casco de Santo Tomas, Delegación Miguel Hidalgo , México D.F. , México
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Castro-Sierra E, de León FCP, Dhellemmes P, Arenas-Huertero F, Eguía-Aguilar P, Perezpeña-Diazconti M, Sánchez-Boiso A, Martínez-Rodríguez S. Genetic modifications present in choroid plexus neoplasias and associated disturbances of psychoneural development. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
35
|
Cañedo-Mondragón R, Eguía-Aguilar P, Pérezpeña-Díazconti M, Arenas-Huertero F. Identification of ferruginous bodies in the lungs of children and analyses of the elemental composition of fibers. Inhal Toxicol 2013; 25:517-24. [PMID: 23905968 DOI: 10.3109/08958378.2013.808288] [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] [Indexed: 11/13/2022]
Abstract
Ferruginous bodies (FBs) are iron-coated entities that form in the body around inorganic fibers or other particulates that can serve as indicators of exposure to inorganic dust. Studies of FB have been conducted consistently in the lungs of adults but have not been explored in children during the past 20 years. The objective of this work was to quantify the FB, classify them as to morphological type and conduct a mineralogical analysis using the energy dispersive X-ray microanalysis (EDXA) with samples obtained from 72 autopsies performed on children. Three grams of lung tissue were digested in commercial bleach, and all the FB found were quantified. The FB from the positive cases was analyzed by EDXA. Results show that 17% of cases presented FB with a median concentration of 5.7 ferruginous bodies per gram of dry weight (FB/g). Larger quantities of FB were recovered from the lungs of rural residents, at concentrations of 11.33 FB/g. Ten cases of children under 5 years of age also presented 5.7 FB/g, but none of these groups showed significant differences when compared to populations of children residing in Mexico City or to children over 5 years of age (p > 0.05). Type-1 FB was the predominant morphological form present. All FB were aluminosilicates. It can be concluded that Mexican children retain FB at low concentrations. All the cores of the FB analyzed in this study were aluminosilicates. Only one contained kaolinite, while the other 10 consisted of some kind of feldspar or clay-like mineral and may thus reflect intramural exposure in children.
Collapse
|
36
|
Cortés-Eslava J, Gómez-Arroyo S, Arenas-Huertero F, Flores-Maya S, Díaz-Hernández ME, Calderón-Segura ME, Valencia-Quintana R, Espinosa-Aguirre JJ, Villalobos-Pietrini R. The role of plant metabolism in the mutagenic and cytotoxic effects of four organophosphorus insecticides in Salmonella typhimurium and in human cell lines. Chemosphere 2013; 92:1117-1125. [PMID: 23434078 DOI: 10.1016/j.chemosphere.2013.01.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 01/09/2013] [Accepted: 01/14/2013] [Indexed: 06/01/2023]
Abstract
This study used a cell/microbe co-incubation assay to evaluate the effect of four organophosphorus insecticides (parathion-methyl, azinphos-methyl, omethoate, and methamidophos) metabolized by coriander (Coriandrum sativum). The reverse mutation of Salmonella typhimurium strains TA98 and TA100 was used as an indicator of genetic damage. Treatments with these insecticides inhibited peroxidase activity in plant cells by between 17% (omethoate) and 98% (azinphos-methyl) and decreased plant protein content by between 36% (omethoate) and 99.6% (azinphos-methyl). Azinphos-methyl was the most toxic when applied directly. In the Ames test, treatments applied directly to strain TA100 killed the bacteria; however, the presence of plant metabolism detoxified the system and permitted the growth of bacteria. In strain TA98, plant metabolites of insecticides were mutagenic. This result suggests that the tested pesticides produce mutations through frameshifting. The same pesticides were applied to human skin (HaCaT) and lung (NL-20) cell lines to evaluate their effects on cell viability. Pesticides applied directly were more cytotoxic than the combination of pesticide plus coriander metabolic fraction. Omethoate and methamidophos did not affect the viability of HaCaT cells, but azinphos-methyl and parathion-methyl at 100 and 1000μgmL(-1) significantly decreased viability (p<0.05). The NL-20 cell line was remarkably sensitive to the direct application of insecticides. All of the treatment conditions caused decreases in NL-20 cell viability (e.g., viability decreased to 12.0% after parathion-methyl treatment, to 14.7% after azinphos-methyl treatment, and to 6.9% after omethoate treatment). Similar to the Ames test, all of the insecticides showed decreased toxicity in human cells when they were cultured in the presence of plant metabolism. In conclusion, when the studied organophosphorus insecticides were plant-metabolized, they induced mutations in the bacterial strain TA98. In human cell lines, plant metabolism reduced the cytotoxic properties of the insecticides, and human keratinocytes were more resistant to mortality than bronchial cells.
Collapse
Affiliation(s)
- Josefina Cortés-Eslava
- Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510 México, D.F., Mexico
| | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Villeda-Cuevas D, Quintero-Casas D, Rivera-Rosales RM, Eguía-Aguilar P, Perezpeña-Diazconti M, Arenas-Huertero F. Elemental composition of ferruginous bodies and occupational categories: analyses and case studies in Mexico. Inhal Toxicol 2012; 24:201-12. [PMID: 22429141 DOI: 10.3109/08958378.2012.657307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Inorganic fibers form part of the complex mixture of environmental pollutants in Mexico City and in general locations. Upon entering the lungs, some of those fibers are transformed into ferruginous bodies (FB) that can be used as biological markers of exposure to fibers. Hence, the objectives of this study were, first, to describe the most frequent types of FB found in the lungs, and second, to determine the elemental composition of the cores of some of those FB. A total of 264 lung samples collected from autopsies performed at the National Institutes of Health in Mexico City were analyzed. The FB were obtained by digesting the samples in commercial bleach and all the FB were then collected in 0.45 µm Millipore membranes. All the FB obtained from each case were counted directly under bright field microscopy, and then classified by morphology. Results showed from 14.5 FB/g in Category 1 (housewives), to 50.2 FB/g for samples from Category 5 (construction workers), and 152 FB/g for Category 6 (miners). Significant differences were found upon comparing samples from Categories 5/6 to Category 1 (p < 0.05). Type 1 FB were the most frequent ones seen in the samples from Categories 1 to 5. Elemental analyses of the cores of several FB found aluminosilicates, fiberglass, tremolite and amosite asbestos among others. In conclusion, residents of Mexico show exposures to a variety of fibers that induce FB including asbestos.
Collapse
Affiliation(s)
- David Villeda-Cuevas
- Departamento de Patología, Hospital Infantil de México Federico Gómez, México D.F., Mexico
| | | | | | | | | | | |
Collapse
|
38
|
Eguía-Aguilar P, Ponce-Castañeda V, Nájera-García N, Nieto-Martínez K, Kofman-Alfaro S, Sadowinski-Pine S, Valencia-Mayoral P, Arenas-Huertero F, Perezpeña-Diazconti M. Detection of Fusion Genes in Formalin-fixed Paraffin-embedded Tissue Sections of Rhabdomyosarcoma by RT-PCR and Fluorescence In Situ Hybridization in Mexican Patients. Arch Med Res 2010; 41:119-24. [PMID: 20470941 DOI: 10.1016/j.arcmed.2010.02.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Accepted: 01/25/2010] [Indexed: 11/29/2022]
Affiliation(s)
- Pilar Eguía-Aguilar
- Departamento de Patología, Hospital Infantil de México Federico Gómez, México, D.F., México
| | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Salazar-Flores M, Rivera-Rodríguez RM, Vázquez-Manriquez ME, Arenas-Huertero F. Synergistic effect of air pollution and habitual smoking on the retention of inorganic fibers identified as ferruginous bodies in autopsy cases in Mexico City. Inhal Toxicol 2009; 21:882-8. [PMID: 19555228 DOI: 10.1080/08958370802566648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In order to evaluate the synergistic effect of habitual smoking and air pollution in Mexico City on the retention of inorganic fibers, ferruginous bodies (FB) were quantified as markers of exposure to inorganic fibers in lung digests from 426 autopsy cases. FB were isolated from 426 lung digests from cases with several lung diseases. The results revealed more retention of FB in the smokers group than in non-smokers: 38 FB per gram (FB/g) versus 11.2 FB/g, respectively (p < 0.05). Male smokers living in Mexico City increased their median to 54 FB/g. This contrasts with the median of outside residents: 11.2 FB/g (p < 0.002). Housewives and manual laborers increased their medians when the smoking habit was positive: from 11 to 14 FB/g, and from 16 to 21.5 FB/g, respectively. There is an effect of tobacco smoke on the retention of more fibers identified as FB when the individuals are males and Mexico City residents.
Collapse
Affiliation(s)
- Margarita Salazar-Flores
- Departamento de Patología, Instituto Nacional de Enfermedades Respiratorias-SS, Calzada de Tlalpan, Mexico
| | | | | | | |
Collapse
|
40
|
Flores-Ancona RM, García-Gómez FY, Jiménez-Betanzos AM, Solis-Paredes M, Castro-Leyva V, Cruz-Orea A, Arenas-Huertero F, Ramón-Gallegos E. Effects of sodium butyrate on cell death induced by photodynamic therapy in U373-MG and D54-MG astrocytoma cell lines. Photochem Photobiol 2009; 85:1182-8. [PMID: 19453389 DOI: 10.1111/j.1751-1097.2009.00561.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The damage induced by end products of photodynamic therapy (PDT) in astrocytoma tumors leads to cytotoxicity and cell death. Chromatin modifiers such as sodium butyrate (NaB) induce several genes involved in apoptosis, among others. The PDT improvement was evaluated by the measurement of its effectiveness in the treatment of U373-MG and D54-MG astrocytoma cell lines exposed to NaB. Cells exposed to 80 microg mL(-1) of delta-aminolevulinic acid (ALA) as precursor of endogenous photosensitizer (PS), protoporphyrin IX (PpIX), induced 16.67% and 28.9% of mortality in U373-MG and D54-MG, respectively. The mortality increased to 70.62% and 96.7%, respectively, when U373-MG and D54-MG cells were exposed for 24 h to 8 mm NaB prior to ALA-induction. In this condition, re-expression of some genes related to apoptosis in U373-MG, and differentiation in D54-MG were induced. PpIX accumulation was higher than ALA-induction and the acetylation of histone H4 induced by NaB was verified by immunocytochemistry in both cells. It can be concluded that modified chromatin and genes induced by NaB increment the cellular death induced by PDT in astrocytoma cells using PpIX as endogenous PS.
Collapse
Affiliation(s)
- Roxana Magaly Flores-Ancona
- Laboratorio de Citopatología Ambiental, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México, D.F., Mexico
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Ruiz-Galindo E, Arenas-Huertero F, Ramón-Gallegos E. Expression of genes involved in heme biosynthesis in the human retinoblastoma cell lines WERI-Rb-1 and Y79: implications for photodynamic therapy. J Exp Clin Cancer Res 2007; 26:195-200. [PMID: 17725098] [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] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Photodynamic therapy (PDT), using protoporphyrin IX (PpIX) as a natural photosensitizer, may be a viable alternative therapy of retinoblastoma. In order to evaluate the potential value of PpIX, the expression profiles of genes involved in heme biosynthesis in human retinoblastoma WERI-Rb-1 and Y79 cells were analyzed by reverse transcriptase-polymerase chain reaction (RT-PCR). Expression levels were highest in protoporphyrinogen oxidase (PPOX), uroporphyrinogen synthase and aminolevulinic acid synthase. Ferrochelatase expression showed a reduction compared to PPOX. PpIX levels were 15- and 18-fold higher in WERI-Rb-1 and Y79 cells, respectively, following induction by delta-aminolevulinic acid. PDT may thus be a promising treatment in vitro, at least in these two retinoblastoma cell lines.
Collapse
Affiliation(s)
- E Ruiz-Galindo
- Lab. de Citopatología Ambiental, Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional, Universidad Nacional Autónoma de México, México, DF, México
| | | | | |
Collapse
|
42
|
Armas-Pineda C, Arenas-Huertero F, Pérezpeñia-Diazconti M, Chico-Ponce de León F, Sosa-Sáinz G, Lezama P, Recillas-Targa F. Expression of PCAF, p300 and Gcn5 and more highly acetylated histone H4 in pediatric tumors. J Exp Clin Cancer Res 2007; 26:269-76. [PMID: 17725108] [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] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Any deregulation of histone acetyltransferases (HATs) could affect several processes in tumors. In this paper, the expression of the PCAF, p300 and Gcn5 HATs by RT-PCR in 34 tumor samples was evaluated. Samples of both central nervous system tumors (CNST, 13 cases) and Wilm's tumors (WT, 11 cases) over-expressed PCAF up to 1.6-, and Gcn5 up to 1.3-fold, respectively. In 9 out of 10 samples of benign tumors (BT), PCAF was not expressed. The p300 gene was the least expressed in all tumors. The medians of expression of PCAF (124.0 DU) and Gcn5 (127.0 DU) genes were higher in CNST than in both WT (102.0 and 101.0 DU, respectively) and BT (70.0 and 82.4 DU, respectively). There was a trend to decrease the expression of PCAF and Gcn5 genes in CNST, according to: chemotherapy (110.0 and 96.0 DU, respectively), chemo plus radiotherapy (124.0 and 115.0 DU, respectively) or no treatment (134.0 and 142.0 DU, respectively) in the tumors. A similar trend was observed in WT. Finally, we revealed more highly acetylated forms of histone H4 in CNST and WT. The over-expression of PCAF could represent a new molecular tumor marker in malignant tumors, especially in CNST in pediatric patients.
Collapse
Affiliation(s)
- C Armas-Pineda
- Departamento de Oncología, Hospital Infantil de México Federico Gómez-S.S, México
| | | | | | | | | | | | | |
Collapse
|
43
|
Rodríguez-Salvador J, Armas-Pineda C, Perezpeña-Diazconti M, Chico-Ponce de León F, Sosa-Sáinz G, Lezama P, Recillas-Targa F, Arenas-Huertero F. Effect of sodium butyrate on pro-matrix metalloproteinase-9 and -2 differential secretion in pediatric tumors and cell lines. J Exp Clin Cancer Res 2005; 24:463-73. [PMID: 16270534] [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] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Matrix metalloproteinases (MMPs) are enzymes responsible for extracellular matrix degradation and contribute to local and distant cell invasion during cancer progression or metastasis. The effects of chromatin structure on gene expression and the use of histone deacetylase inhibitors such as sodium butyrate (NaBu) may directly influence pro-MMPs secretion. In the present study, we evaluated the effect of NaBu on pro-MMP-9 and pro-MMP-2 secretion in human Jurkat and HT1080 cells, and in 36 pediatric solid tumors. Cell lines and samples were exposed to 8 mM of NaBu and proteinase activity was evaluated in the supernatant by gelatin zymograms. Our results showed, for Jurkat cells treated with NaBu, increases of 2-fold and 1.5-fold in pro-MMP-9 and pro-MMP-2 secretion, respectively. A 50% decrease in pro-MMP-9 secretion due to NaBu was observed in HT1080 cells. NaBu induced a 0.62 reduction in levels of pro-MMP-9 secretion in untreated tumors. For cell lines and some NaBu-treated tumors we found histone H4 hyperacetylation. We conclude that pro-MMPs gene expression and their secretion can be epigenetically mis-regulated in tumoral processes.
Collapse
|
44
|
Argüello-Ramírez J, Pérez-Cárdenas E, Delgado-Chávez R, Solorza-Luna G, Villa-Treviño S, Arenas-Huertero F. Matrix metalloproteinases-2, -3, and -9 secreted by explants of benign and malignant lesions of the uterine cervix. Int J Gynecol Cancer 2004; 14:333-40. [PMID: 15086734 DOI: 10.1111/j.1048-891x.2004.014218.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Elevated expression of matrix metalloproteinases (MMPs) plays a critical role in extracellular matrix (EM) degradation in tumor development and prognosis of different human carcinomas. In cervical carcinoma (Ce Ca), the role of these proteinases in the biological development of this neoplasm is controversial. In the present study, we compared the secretion of MMP-2, MMP-3 and MMP-9 among 29 benign and premalignant cervical lesions (cervicitis and cervical intraepithelial neoplasias) and 46 tumoral explants of Ce Ca. The explants were cultured for 48 h. The gelatinases secreted into conditioned medium were revealed by zymography and quantified by densitometry. The results showed high levels of MMP-3 and MMP-9 in tumoral explants. In contrast, only the pro-MMP-2 was higher in benign cervical lesions, although both active and inactive MMP-2 species are associated with advanced clinical stages in tumoral samples, and only the secretion of MMP-3 was associated with unresponsiveness to radiotherapy. We can conclude that the expression of MMPs is related to the invasive process in Ce Ca and suggest that they may play a role in degradation of the EM during local invasion. In addition, MMP-3 secretion could be a marker of poor prognosis in Ce Ca.
Collapse
Affiliation(s)
- J Argüello-Ramírez
- Experimental Tumorigenesis and Metastasis Laboratory, Instituto Nacional de Cancerología-SS, Centro de Investigación y Estudios Avanzados (CINVESTAV), México City, México
| | | | | | | | | | | |
Collapse
|
45
|
Argüello-Ramírez J, PÉREZ-CÁRDENAS E, Delgado-Chávez R, Solorza-Luna G, Villa-Treviño S, Arenas-Huertero F. Matrix metalloproteinases-2, -3, and -9 secreted by explants of benign and malignant lesions of the uterine cervix. Int J Gynecol Cancer 2004. [DOI: 10.1136/ijgc-00009577-200403000-00021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Elevated expression of matrix metalloproteinases (MMPs) plays a critical role in extracellular matrix (EM) degradation in tumor development and prognosis of different human carcinomas. In cervical carcinoma (Ce Ca), the role of these proteinases in the biological development of this neoplasm is controversial. In the present study, we compared the secretion of MMP-2, MMP-3 and MMP-9 among 29 benign and premalignant cervical lesions (cervicitis and cervical intraepithelial neoplasias) and 46 tumoral explants of Ce Ca. The explants were cultured for 48 h. The gelatinases secreted into conditioned medium were revealed by zymography and quantified by densitometry. The results showed high levels of MMP-3 and MMP-9 in tumoral explants. In contrast, only the pro-MMP-2 was higher in benign cervical lesions, although both active and inactive MMP-2 species are associated with advanced clinical stages in tumoral samples, and only the secretion of MMP-3 was associated with unresponsiveness to radiotherapy. We can conclude that the expression of MMPs is related to the invasive process in Ce Ca and suggest that they may play a role in degradation of the EM during local invasion. In addition, MMP-3 secretion could be a marker of poor prognosis in Ce Ca.
Collapse
|
46
|
Arenas-Huertero F, Recillas-Targa F. [Chromatin epigenetic modifications in cancer generation]. GAC MED MEX 2002; 138:547-55. [PMID: 12532619] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
Chromatin is more than a simple staining structure inside the nucleus. It represents a level of organization that regulates transcriptional activation in eukaryotic genes; this may be through epigenetic modifications such as DNA methylation, histone acetylation, deacetylation and methylation, and chromatin remodeling complexes. Chromatin can have a direct impact on regulating gene expression. Several human diseases arise from alterations of epigenetic regulation, causing change in chromatin structure: cancer is not the exception. The expression of tumor suppressor genes can be epigenetically silenced by DNA methylation of their promotor regions. In other cases such as leukemias, imbalance of histone acetylation and deacetylation can be a determinant event to induce a leukemic phenotype. Finally, improper imprinting can also be associated with neoplastic transformation as in Wilms tumors and sporadic colon cancer. All this evidence supports our particular attention to the study of chromatin structure in cancer. The use of compounds that modify chromatin to improve effects of radio- and chemotherapy will open new horizons in what we call Chromatin Therapy in cancer.
Collapse
Affiliation(s)
- Francisco Arenas-Huertero
- Depto. Oncología, Hospital Infantil de México Federico Gómez-SS, Avenida Dr. Márquez 162, Colonia de los Doctores, 06720, México, D.F.
| | | |
Collapse
|
47
|
Arenas-Huertero F, Arroyo A, Zhou L, Sheen J, León P. Analysis of Arabidopsis glucose insensitive mutants, gin5 and gin6, reveals a central role of the plant hormone ABA in the regulation of plant vegetative development by sugar. Genes Dev 2000. [DOI: 10.1101/gad.14.16.2085] [Citation(s) in RCA: 194] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Sugars have signaling roles in a wide variety of developmental processes in plants. To elucidate the regulatory components that constitute the glucose signaling network governing plant growth and development, we have isolated and characterized two Arabidopsisglucose insensitive mutants, gin5 and gin6, based on a glucose-induced developmental arrest during early seedling morphogenesis. The T-DNA-tagged gin6 mutant abrogates the glucose-induced expression of a putative transcription factor, ABI4, previously shown to be involved in seed-specific abscisic acid (ABA) responses. Thus, ABI4 might be a regulator involved in both glucose- and seed-specific ABA signaling. The characterization of thegin5 mutant, on the other hand, reveals that glucose-specific accumulation of ABA is essential for hexokinase-mediated glucose responses. Consistent with this result, we show that three ABA-deficient mutants (aba1-1, aba2-1, andaba3-2) are also glucose insensitive. Exogenous ABA can restore normal glucose responses in gin5 and aba mutants but not in gin6 plants. Surprisingly, only abi4 andabi5-1 but not other ABA-insensitive signaling mutants (abi1-1, abi2-1, and abi3-1) exhibit glucose insensitivity, indicating the involvement of a distinct ABA signaling pathway in glucose responses. These results provide the first direct evidence to support a novel and central role of ABA in plant glucose responses mediated through glucose regulation of both ABA levels by GIN5 and ABA signaling by GIN6/ABI4.
Collapse
|
48
|
Arenas-Huertero F, Arroyo A, Zhou L, Sheen J, León P. Analysis of Arabidopsis glucose insensitive mutants, gin5 and gin6, reveals a central role of the plant hormone ABA in the regulation of plant vegetative development by sugar. Genes Dev 2000; 14:2085-96. [PMID: 10950871 PMCID: PMC316855] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2000] [Accepted: 06/27/2000] [Indexed: 02/17/2023]
Abstract
Sugars have signaling roles in a wide variety of developmental processes in plants. To elucidate the regulatory components that constitute the glucose signaling network governing plant growth and development, we have isolated and characterized two Arabidopsis glucose insensitive mutants, gin5 and gin6, based on a glucose-induced developmental arrest during early seedling morphogenesis. The T-DNA-tagged gin6 mutant abrogates the glucose-induced expression of a putative transcription factor, ABI4, previously shown to be involved in seed-specific abscisic acid (ABA) responses. Thus, ABI4 might be a regulator involved in both glucose- and seed-specific ABA signaling. The characterization of the gin5 mutant, on the other hand, reveals that glucose-specific accumulation of ABA is essential for hexokinase-mediated glucose responses. Consistent with this result, we show that three ABA-deficient mutants (aba1-1, aba2-1, and aba3-2) are also glucose insensitive. Exogenous ABA can restore normal glucose responses in gin5 and aba mutants but not in gin6 plants. Surprisingly, only abi4 and abi5-1 but not other ABA-insensitive signaling mutants (abi1-1, abi2-1, and abi3-1) exhibit glucose insensitivity, indicating the involvement of a distinct ABA signaling pathway in glucose responses. These results provide the first direct evidence to support a novel and central role of ABA in plant glucose responses mediated through glucose regulation of both ABA levels by GIN5 and ABA signaling by GIN6/ABI4.
Collapse
Affiliation(s)
- F Arenas-Huertero
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62271, México
| | | | | | | | | |
Collapse
|