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Hernández-Bello J, Lorenzo-Leal AC, Muñoz-Valle JF, Morales-Núñez JJ, Díaz-Pérez SA, Hernández-Gutiérrez R, Bach H. Neutralizing antibody responses to the Delta variant of SARS-CoV-2 following vaccination with Ad5-nCoV (CanSino) in the Mexican population. PLoS One 2024; 19:e0299520. [PMID: 38573914 PMCID: PMC10994301 DOI: 10.1371/journal.pone.0299520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/13/2024] [Indexed: 04/06/2024] Open
Abstract
During the COVID-19 pandemic, the Ad5-nCoV vaccine was applied to the Mexican population before the WHO approved it. In a transversal study, we compare the CanSino vaccine efficacy and a natural SARS-CoV-2 infection in eliciting neutralizing antibodies against the SARS-CoV-2 Delta variant in Guadalajara, Mexico. Participants between 30-60 years were included in the study and classified into three groups: 1) Natural immunity (unvaccinated), 2) Vaccine-induced immunity (vaccinated individuals without a COVID-19 history), and 3) Natural immunity + vaccine-induced immunity. These groups were matched by age and gender. We assessed the ability of individuals' serum to neutralize the Delta variant and compared the results of the different groups using a neutralization test followed by plaque-forming units. Results showed that 39% of individuals' serum with a history of COVID-19 (natural immunity, Group 1) could not neutralize the Delta variant, compared to 33% in vaccinated individuals without COVID-19 (vaccine immunity, Group 2). In contrast, only 7% of vaccinated individuals with a history of COVID-19 (natural + vaccine immunities) could not neutralize the Delta variant. We concluded that the effectiveness of the Ad5-nCoV vaccine to induce neutralizing antibodies against the Delta variant is comparable to that of natural infection (61% vs. 67%). However, in individuals with both forms of immunity (Group 3), it increased to 93%. Based on these results, despite the Ad5-nCoV vaccine originally being designed as a single-dose regimen, it could be recommended that even those who have recovered from COVID-19 should consider vaccination to boost their immunity against this variant.
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Affiliation(s)
- Jorge Hernández-Bello
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud Universidad de Guadalajara, Guadalajara, Mexico
| | - Ana C. Lorenzo-Leal
- Division of Infectious Diseases, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - José F. Muñoz-Valle
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud Universidad de Guadalajara, Guadalajara, Mexico
| | - José J. Morales-Núñez
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud Universidad de Guadalajara, Guadalajara, Mexico
| | - Saul A. Díaz-Pérez
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud Universidad de Guadalajara, Guadalajara, Mexico
| | | | - Horacio Bach
- Division of Infectious Diseases, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
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Fernandez-Avila L, Castro-Amaya AM, Molina-Pineda A, Hernández-Gutiérrez R, Jave-Suarez LF, Aguilar-Lemarroy A. The Value of CXCL1, CXCL2, CXCL3, and CXCL8 as Potential Prognosis Markers in Cervical Cancer: Evidence of E6/E7 from HPV16 and 18 in Chemokines Regulation. Biomedicines 2023; 11:2655. [PMID: 37893029 PMCID: PMC10604789 DOI: 10.3390/biomedicines11102655] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
Cervical cancer (CC) is a serious global health issue, and it is well-known that HPV infection is the main etiological factor that triggers carcinogenesis. In cancer, chemokine ligands and receptors are involved in tumor cell growth, metastasis, leukocyte infiltration, and angiogenesis; however, information on the role played by E6/E7 of HPV16/18 in the modulation of chemokines is very limited. Therefore, this study aimed to determine whether chemokines are differentially expressed in CC-derived cell lines; if E6/E7 oncoproteins from HPV16 and 18 are capable of mediating chemokine expression, what is the expression profile of chemokines in tissues derived from CC and what is their impact on the overall survival of patients with this pathology? For this purpose, RNA sequencing and real-time PCR were performed on SiHa, HeLa, and C33A tumorigenic cell lines, on the non-tumorigenic HaCaT cells, and the E6/E7 HPV-transduced HaCaT cell models. Furthermore, chemokine expression and survival analysis were executed on 304 CC and 22 normal tissue samples from The Cancer Genome Atlas (TCGA) repository. The results demonstrate that CXCL1, CXCL2, CXCL3, and CXCL8 are regulated by E6/E7 of HPV16 and 18, are overexpressed in CC biopsies, and that their higher expression is related to a worse prognostic survival.
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Affiliation(s)
- Leonardo Fernandez-Avila
- Programa de Doctorado en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara 44340, Jalisco, Mexico;
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), Guadalajara 44340, Jalisco, Mexico;
| | - Aribert Maryosly Castro-Amaya
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), Guadalajara 44340, Jalisco, Mexico;
| | - Andrea Molina-Pineda
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Guadalajara 44270, Jalisco, Mexico; (A.M.-P.); (R.H.-G.)
- Consejo Nacional de Ciencia y Tecnología, CONAHCYT, Mexico City 03940, Mexico
| | - Rodolfo Hernández-Gutiérrez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Guadalajara 44270, Jalisco, Mexico; (A.M.-P.); (R.H.-G.)
| | - Luis Felipe Jave-Suarez
- Programa de Doctorado en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara 44340, Jalisco, Mexico;
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), Guadalajara 44340, Jalisco, Mexico;
| | - Adriana Aguilar-Lemarroy
- Programa de Doctorado en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara 44340, Jalisco, Mexico;
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), Guadalajara 44340, Jalisco, Mexico;
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3
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De Dios-Figueroa GT, Aguilera-Márquez JDR, García-Uriostegui L, Hernández-Gutiérrez R, Camacho-Villegas TA, Lugo-Fabres PH. Embedded Living HER2+ Cells in a 3D Gelatin-Alginate Hydrogel as an In Vitro Model for Immunotherapy Delivery for Breast Cancer. Polymers (Basel) 2023; 15:3726. [PMID: 37765581 PMCID: PMC10535529 DOI: 10.3390/polym15183726] [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: 07/27/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Epidermal growth factor receptor 2 (HER2) is the second target molecule most commonly used in breast cancer treatment. Both recurrence and metastasis are still deadly for HER2+ breast cancer patients. Hydrogels can be an option for developing three-dimensional (3D) cell culture systems that resemble tumor features better than monolayer cultures and could be used for preclinical screening for new biotherapeutics. Biopolymers (gelatin and alginate) were used to develop a hydrogel capable of encapsulating living HER2+ breast cancer cells BT-474/GFP. The hydrogel was physicochemically characterized, and the viability of embedded cells was evaluated. The hydrogel developed had suitable physical properties, with swelling of 38% of its original mass at 20 h capacity and pore sizes between 20 and 125 µm that allowed cells to maintain their morphology in a 3D environment, in addition to being biocompatible and preserving 90% of cell viability at 10 days. Furthermore, encapsulated BT-474/GFP cells maintained HER2 expression that could be detected by the Trastuzumab-fluorescent antibody, so this hydrogel could be used to evaluate new HER2-targeted therapies.
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Affiliation(s)
- G. Tonantzin De Dios-Figueroa
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Guadalajara 44270, Jalisco, Mexico; (G.T.D.D.-F.); (J.d.R.A.-M.); (R.H.-G.)
| | - Janette del Rocío Aguilera-Márquez
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Guadalajara 44270, Jalisco, Mexico; (G.T.D.D.-F.); (J.d.R.A.-M.); (R.H.-G.)
| | - Lorena García-Uriostegui
- CONAHCYT—Departamento de Madera, Celulosa y Papel, Universidad de Guadalajara (UDG), Guadalajara 44100, Jalisco, Mexico;
| | - Rodolfo Hernández-Gutiérrez
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Guadalajara 44270, Jalisco, Mexico; (G.T.D.D.-F.); (J.d.R.A.-M.); (R.H.-G.)
| | - Tanya A. Camacho-Villegas
- CONAHCYT—Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Guadalajara 44270, Jalisco, Mexico;
| | - Pavel H. Lugo-Fabres
- CONAHCYT—Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Guadalajara 44270, Jalisco, Mexico;
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Tinajero-Díaz E, Salado-Leza D, Gonzalez C, Martínez Velázquez M, López Z, Bravo-Madrigal J, Knauth P, Flores-Hernández FY, Herrera-Rodríguez SE, Navarro RE, Cabrera-Wrooman A, Krötzsch E, Carvajal ZYG, Hernández-Gutiérrez R. Green Metallic Nanoparticles for Cancer Therapy: Evaluation Models and Cancer Applications. Pharmaceutics 2021; 13:1719. [PMID: 34684012 PMCID: PMC8537602 DOI: 10.3390/pharmaceutics13101719] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [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: 08/23/2021] [Revised: 09/29/2021] [Accepted: 10/05/2021] [Indexed: 12/15/2022] Open
Abstract
Metal-based nanoparticles are widely used to deliver bioactive molecules and drugs to improve cancer therapy. Several research works have highlighted the synthesis of gold and silver nanoparticles by green chemistry, using biological entities to minimize the use of solvents and control their physicochemical and biological properties. Recent advances in evaluating the anticancer effect of green biogenic Au and Ag nanoparticles are mainly focused on the use of conventional 2D cell culture and in vivo murine models that allow determination of the half-maximal inhibitory concentration, a critical parameter to move forward clinical trials. However, the interaction between nanoparticles and the tumor microenvironment is not yet fully understood. Therefore, it is necessary to develop more human-like evaluation models or to improve the existing ones for a better understanding of the molecular bases of cancer. This review provides recent advances in biosynthesized Au and Ag nanoparticles for seven of the most common and relevant cancers and their biological assessment. In addition, it provides a general idea of the in silico, in vitro, ex vivo, and in vivo models used for the anticancer evaluation of green biogenic metal-based nanoparticles.
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Affiliation(s)
- Ernesto Tinajero-Díaz
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028 Barcelona, Spain;
- Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Col. Colinas de La Normal, Guadalajara 44270, Mexico; (M.M.V.); (J.B.-M.); (F.Y.F.-H.); (S.E.H.-R.)
| | - Daniela Salado-Leza
- Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava, Zona Universitaria, San Luis Potosí 78210, Mexico; (D.S.-L.); (C.G.)
- Cátedras CONACyT, México City 03940, Mexico
| | - Carmen Gonzalez
- Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava, Zona Universitaria, San Luis Potosí 78210, Mexico; (D.S.-L.); (C.G.)
| | - Moisés Martínez Velázquez
- Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Col. Colinas de La Normal, Guadalajara 44270, Mexico; (M.M.V.); (J.B.-M.); (F.Y.F.-H.); (S.E.H.-R.)
| | - Zaira López
- Centro Universitario de la Ciénega, Cell Biology Laboratory, Universidad de Guadalajara, Av. Universidad 1115, Ocotlán 47810, Mexico; (Z.L.); (P.K.)
| | - Jorge Bravo-Madrigal
- Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Col. Colinas de La Normal, Guadalajara 44270, Mexico; (M.M.V.); (J.B.-M.); (F.Y.F.-H.); (S.E.H.-R.)
| | - Peter Knauth
- Centro Universitario de la Ciénega, Cell Biology Laboratory, Universidad de Guadalajara, Av. Universidad 1115, Ocotlán 47810, Mexico; (Z.L.); (P.K.)
| | - Flor Y. Flores-Hernández
- Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Col. Colinas de La Normal, Guadalajara 44270, Mexico; (M.M.V.); (J.B.-M.); (F.Y.F.-H.); (S.E.H.-R.)
| | - Sara Elisa Herrera-Rodríguez
- Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Col. Colinas de La Normal, Guadalajara 44270, Mexico; (M.M.V.); (J.B.-M.); (F.Y.F.-H.); (S.E.H.-R.)
| | - Rosa E. Navarro
- Departamento de Biología Celular y Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, México City 04510, Mexico;
| | - Alejandro Cabrera-Wrooman
- Centro Nacional de Investigación y Atención de Quemados, Laboratory of Connective Tissue, Instituto Nacional de Rehabilitación “Luis Guillermo Ibarra Ibarra”, México City 14389, Mexico; (A.C.-W.); (E.K.)
| | - Edgar Krötzsch
- Centro Nacional de Investigación y Atención de Quemados, Laboratory of Connective Tissue, Instituto Nacional de Rehabilitación “Luis Guillermo Ibarra Ibarra”, México City 14389, Mexico; (A.C.-W.); (E.K.)
| | - Zaira Y. García Carvajal
- Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Col. Colinas de La Normal, Guadalajara 44270, Mexico; (M.M.V.); (J.B.-M.); (F.Y.F.-H.); (S.E.H.-R.)
| | - Rodolfo Hernández-Gutiérrez
- Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Col. Colinas de La Normal, Guadalajara 44270, Mexico; (M.M.V.); (J.B.-M.); (F.Y.F.-H.); (S.E.H.-R.)
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Oaxaca-Camacho AR, Ochoa-Mojica OR, Aguilar-Lemarroy A, Jave-Suárez LF, Muñoz-Valle JF, Padilla-Camberos E, Núñez-Hernández JA, Herrera-Rodríguez SE, Martínez-Velázquez M, Carranza-Aranda AS, Cruz-Ramos JA, Gutiérrez-Ortega A, Hernández-Gutiérrez R. Serum Analysis of Women with Early-Stage Breast Cancer Using a Mini-Array of Tumor-Associated Antigens. Biosensors (Basel) 2020; 10:bios10100149. [PMID: 33096879 PMCID: PMC7590061 DOI: 10.3390/bios10100149] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 09/02/2020] [Revised: 10/03/2020] [Accepted: 10/08/2020] [Indexed: 05/30/2023]
Abstract
Background: Several studies have shown that patients with cancer have antibodies in serum that react with cellular autoantigens, known as Tumor-Associated Antigens (TAA). The present work aimed to determine whether a mini-array comprising four recombinant TAA increases the detection of specific serum antibodies for the diagnosis of early-stage breast cancer. Methods: The mini-array included Alpha 1-AntiTrypsin (A1AT), TriosePhosphate Isomerase 1 (TPI1), Peptidyl-Prolyl cis-trans Isomerase A (PPIA), and PeroxiReDoXin 2 (PRDX2) full-length recombinant proteins. The proteins were produced after gene cloning, expression, and purification, and were verified by Western blot assays. Then, Dot-Blot was performed to find antibodies against the four TAA in 12 sera from women with early-stage breast cancer (stage II) and 12 sera from healthy women. Results: Antibody detection against individual TAA in early-stage breast cancer sera ranged from 58.3% to 83.3%. However, evaluation of the four TAA showed that there was a positive antibody reaction reaching a sensitivity of 100% and a specificity of 85% in early-stage breast cancer, suggesting that this mini-array must be evaluated as a clinical diagnostic tool for early-stage breast cancer in a larger sample size. Conclusion: Our results suggest that TAA mini-arrays may provide a promising and powerful method for improving the detection of breast cancer in Mexican women.
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Affiliation(s)
- Alma Rosa Oaxaca-Camacho
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. (CIATEJ), 44270 Guadalajara, Mexico; (A.R.O.-C.); (O.R.O.-M.); (E.P.-C.); (J.A.N.-H.); (S.E.H.-R.); (M.M.-V.); (A.G.-O.)
| | - Oscar René Ochoa-Mojica
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. (CIATEJ), 44270 Guadalajara, Mexico; (A.R.O.-C.); (O.R.O.-M.); (E.P.-C.); (J.A.N.-H.); (S.E.H.-R.); (M.M.-V.); (A.G.-O.)
| | - Adriana Aguilar-Lemarroy
- Centro de Investigación Biomédica de Occidente (CIBO), División de Inmunología, Instituto Mexicano del Seguro Social (IMSS), 44340 Guadalajara, Mexico; (A.A.-L.); (L.F.J.-S.)
| | - Luis F. Jave-Suárez
- Centro de Investigación Biomédica de Occidente (CIBO), División de Inmunología, Instituto Mexicano del Seguro Social (IMSS), 44340 Guadalajara, Mexico; (A.A.-L.); (L.F.J.-S.)
| | - José Francisco Muñoz-Valle
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, 44340 Guadalajara, Mexico; (J.F.M.-V.); (A.S.C.-A.); (J.A.C.-R.)
| | - Eduardo Padilla-Camberos
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. (CIATEJ), 44270 Guadalajara, Mexico; (A.R.O.-C.); (O.R.O.-M.); (E.P.-C.); (J.A.N.-H.); (S.E.H.-R.); (M.M.-V.); (A.G.-O.)
| | - Juan Antonio Núñez-Hernández
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. (CIATEJ), 44270 Guadalajara, Mexico; (A.R.O.-C.); (O.R.O.-M.); (E.P.-C.); (J.A.N.-H.); (S.E.H.-R.); (M.M.-V.); (A.G.-O.)
| | - Sara E. Herrera-Rodríguez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. (CIATEJ), 44270 Guadalajara, Mexico; (A.R.O.-C.); (O.R.O.-M.); (E.P.-C.); (J.A.N.-H.); (S.E.H.-R.); (M.M.-V.); (A.G.-O.)
| | - Moisés Martínez-Velázquez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. (CIATEJ), 44270 Guadalajara, Mexico; (A.R.O.-C.); (O.R.O.-M.); (E.P.-C.); (J.A.N.-H.); (S.E.H.-R.); (M.M.-V.); (A.G.-O.)
| | - Ahtziri Socorro Carranza-Aranda
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, 44340 Guadalajara, Mexico; (J.F.M.-V.); (A.S.C.-A.); (J.A.C.-R.)
| | - José Alfonso Cruz-Ramos
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, 44340 Guadalajara, Mexico; (J.F.M.-V.); (A.S.C.-A.); (J.A.C.-R.)
- Instituto Jalisciense de Cancerología (IJC), Departamento de Enseñanza, Capacitación e Investigación, 44280 Guadalajara, Mexico
| | - Abel Gutiérrez-Ortega
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. (CIATEJ), 44270 Guadalajara, Mexico; (A.R.O.-C.); (O.R.O.-M.); (E.P.-C.); (J.A.N.-H.); (S.E.H.-R.); (M.M.-V.); (A.G.-O.)
| | - Rodolfo Hernández-Gutiérrez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. (CIATEJ), 44270 Guadalajara, Mexico; (A.R.O.-C.); (O.R.O.-M.); (E.P.-C.); (J.A.N.-H.); (S.E.H.-R.); (M.M.-V.); (A.G.-O.)
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Martínez-Silva MG, García-Chagollán M, Aguilar-Lemarroy A, Hernández-Gutiérrez R, Leal-Herrera YA, Ruiz-Tachiquín ME, González-López S, Jave-Suárez LF. Molecular subtypes and clinicopathological features of breast cancer in Mexican women. Rev Med Inst Mex Seguro Soc 2020; 58:S21-S31. [PMID: 34695313 DOI: 10.24875/rmimss.m20000112] [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] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Breast cancer is a multifactorial and heterogeneous disease with distinct molecular features and histopathologic subtypes involving different therapeutic responses and clinical outcomes. Classification of breast cancer in molecular subtypes has made possible an approach to develop therapeutic strategies in order to have a better understanding of the breast cancer development. Due to the heterogeneity of the disease, there are still features to be elucidated in the behavior, etiology and clinical outcomes of each molecular subtype in breast cancer. METHODS Variables measured in 1,695 cases of invasive breast carcinoma were age, histopathological diagnosis, histopathological grade, expression of estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor-2 (HER2), cell proliferation marker (Ki67) and basal cytokeratins (CK 5/6). P values were obtained using Chi square test and hazard ratios were calculated with 95% confidence intervals. RESULTS An increase of aggressive molecular subtypes of breast cancer was observed. The mean age of incidence of breast cancer patients is decreasing, and breast cancer Patients younger than 40-years-old showed higher risk to exhibit Triple negative and Basal-like tumors. CONCLUSIONS The mean age for this pathology is decreasing in our population and there is predominance in the differential occurrence of etiologically distinct entities of breast cancer affecting to the young women.
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Affiliation(s)
- María Guadalupe Martínez-Silva
- Instituto Mexicano del Seguro Social, Centro Médico Nacional de Occidente "Lic. Ignacio García Téllez", Hospital de Especialidades, Servicio de Anatomía Patológica. Guadalajara, Jalisco
| | - Mariel García-Chagollán
- Universidad de Guadalajara, Centro Universitario de Ciencias de la Salud, Instituto de Investigación en Ciencias Biomédicas, Departamento de Fisiología. Guadalajara, Jalisco
| | - Adriana Aguilar-Lemarroy
- Instituto Mexicano del Seguro Social, Centro de Investigación Biomédica de Occidente, División de Inmunología. Guadalajara, Jalisco
| | - Rodolfo Hernández-Gutiérrez
- Consejo Nacional de Ciencia y Tecnología, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. (CIATEJ), Unidad de Biotecnología Medica y Farmacéutica. Guadalajara, Jalisco
| | - Yelda Aurora Leal-Herrera
- Instituto Mexicano del Seguro Social, Centro Institucional de Capacitación y Registro de Cáncer (CICyRC). Mérida, Yucatán
| | - Martha-Eugenia Ruiz-Tachiquín
- Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Hospital de Pediatría "Dr. Silvestre Frenk Freund", Unidad de Investigación Médica en Genética Humana. Ciudad de México
| | - Sergio González-López
- Instituto Mexicano del Seguro Social, Centro Médico Nacional de Occidente, Hospital de Especialidades, Laboratorio Regional de Citología Exfoliativa. Guadalajara, Jalisco. México
| | - Luis Felipe Jave-Suárez
- Instituto Mexicano del Seguro Social, Centro de Investigación Biomédica de Occidente, División de Inmunología. Guadalajara, Jalisco
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Ramírez-García G, Panikar SS, López-Luke T, Piazza V, Honorato-Colin MA, Camacho-Villegas T, Hernández-Gutiérrez R, De la Rosa E. An immunoconjugated up-conversion nanocomplex for selective imaging and photodynamic therapy against HER2-positive breast cancer. Nanoscale 2018; 10:10154-10165. [PMID: 29785440 DOI: 10.1039/c8nr01512k] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Photodynamic therapy represents a very attractive therapeutic tool considered to be effective, minimally invasive and minimally toxic. However, conventional photodynamic therapy actually has two main constraints: the limited penetration depth of visible light needed for its activation, and the lack of selectivity. Considering this, this work reports the synthesis and evaluation of a novel nanoconjugate for imaging and selective photodynamic therapy against HER2-positive breast cancer, a particularly aggressive form of the disease. It was demonstrated that upon 975 nm near infrared light exposure, the red emission of the NaYF4:Yb,Er up-conversion nanoparticles (UCNPs) can be used for optical imaging and simultaneously represent the source for the excitation of a covalently bound zinc tetracarboxyphenoxy phthalocyanine (ZnPc), a photosensitizer that in turn transfers energy to ground state molecular oxygen to produce cytotoxic singlet oxygen. The specificity of our nanoconjugates was achieved by immunoconjugation with Trastuzumab (Tras), a specific monoclonal antibody for selective detection and treatment of HER2-overexpressing malignant breast cancer cells. Selective tracking of SKBR-3 HER2-positive cells was verified by confocal microscopy analysis, and the photodynamic therapy effect was considerably improved when Trastuzumab was incorporated into the nanoconjugate, the UCNPs-ZnPc-Tras being practically inert in the absence of infrared light exposure but reducing the HER2-positive cell viability up to 21% upon 5 min of the irradiation. This theranostic nanoconjugate represents a valuable alternative for HER2-positive breast cancer imaging and selective photodynamic therapy.
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Affiliation(s)
- Gonzalo Ramírez-García
- Centro de Investigaciones en Óptica, Nanophotonics and Advanced Materials Lab., A.P. 1-948, León, Guanajuato 37150, México.
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8
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Manuel-Cabrera CA, Vallejo-Cardona AA, Padilla-Camberos E, Hernández-Gutiérrez R, Herrera-Rodríguez SE, Gutiérrez-Ortega A. Self-assembly of hexahistidine-tagged tobacco etch virus capsid protein into microfilaments that induce IgG2-specific response against a soluble porcine reproductive and respiratory syndrome virus chimeric protein. Virol J 2016; 13:196. [PMID: 27894314 PMCID: PMC5126848 DOI: 10.1186/s12985-016-0651-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 07/05/2016] [Accepted: 11/17/2016] [Indexed: 11/10/2022] Open
Abstract
Background Assembly of recombinant capsid proteins into virus-like particles (VLPs) still represents an interesting challenge in virus-based nanotechnologies. The structure of VLPs has gained importance for the development and design of new adjuvants and antigen carriers. The potential of Tobacco etch virus capsid protein (TEV CP) as adjuvant has not been evaluated to date. Findings Two constructs for TEV CP expression in Escherichia coli were generated: a wild-type version (TEV-CP) and a C-terminal hexahistidine (His)-tagged version (His-TEV-CP). Although both versions were expressed in the soluble fraction of E. coli lysates, only His-TEV-CP self-assembled into micrometric flexuous filamentous VLPs. In addition, the His-tag enabled high yields and facilitated purification of TEV VLPs. These TEV VLPs elicited broader IgG2-specific antibody response against a novel porcine reproductive and respiratory syndrome virus (PRRSV) protein when compared to the potent IgG1 response induced by the protein alone. Conclusions His-TEV CP was purified by immobilized metal affinity chromatography and assembled into VLPs, some of them reaching 2-μm length. TEV VLPs administered along with PRRSV chimeric protein changed the IgG2/IgG1 ratio against the chimeric protein, suggesting that TEV CP can modulate the immune response against a soluble antigen. Electronic supplementary material The online version of this article (doi:10.1186/s12985-016-0651-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Carlos Alberto Manuel-Cabrera
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Alba Adriana Vallejo-Cardona
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Eduardo Padilla-Camberos
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Rodolfo Hernández-Gutiérrez
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Sara Elisa Herrera-Rodríguez
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico
| | - Abel Gutiérrez-Ortega
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico.
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9
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Aguilera BE, Chávez-Calvillo G, Elizondo-Quiroga D, Jimenez-García MN, Carrillo-Tripp M, Silva-Rosales L, Hernández-Gutiérrez R, Gutiérrez-Ortega A. Porcine circovirus type 2 protective epitope densely carried by chimeric papaya ringspot virus-like particles expressed in Escherichia coli as a cost-effective vaccine manufacture alternative. Biotechnol Appl Biochem 2016; 64:406-414. [PMID: 26970530 DOI: 10.1002/bab.1491] [Citation(s) in RCA: 4] [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: 12/11/2015] [Accepted: 03/03/2016] [Indexed: 10/22/2022]
Abstract
Porcine circovirus type 2 (PCV2) still represents a major problem to the swine industry worldwide, causing high mortality rates in infected animals. Virus-like particles (VLPs) have gained attention for vaccine development, serving both as scaffolds for epitope expression and immune response enhancers. The commercial subunit vaccines against PCV2 consist of VLPs formed by the self-assembly of PCV2 capsid protein (CP) expressed in the baculovirus vector system. In this work, a PCV2 protective epitope was inserted into three different regions of papaya ringspot virus (PRSV) CP, namely, the N- and C-termini and a predicted antigenic region located near the N-terminus. Wild-type and chimeric CPs were modeled in silico, expressed in Escherichia coli, purified, and visualized by transmission electron microscopy. This is the first report that shows the formation of chimeric VLPs using PRSV as epitope-presentation scaffold. Moreover, it was found that PCV2 epitope localization strongly influences VLP length. Also, the estimated yields of the chimeric VLPs at a small-scale level ranged between 65 and 80 mg/L of culture medium. Finally, the three chimeric VLPs induced high levels of immunoglobulin G against the PCV2 epitope in immunized BALB/c mice, suggesting that these chimeric VLPs can be used for swine immunoprophylaxis against PCV2.
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Affiliation(s)
- Brenda Eugenia Aguilera
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, Guadalajara, Jalisco 44270, México
| | - Gabriela Chávez-Calvillo
- Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, km 9.6 Libramiento Norte, Carretera Irapuato-León, Irapuato, Guanajuato 36821, México
| | - Darwin Elizondo-Quiroga
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, Guadalajara, Jalisco 44270, México
| | - Mónica Noemí Jimenez-García
- Laboratorio de la Diversidad Biomolecular, Unidad de Genómica Avanzada, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Libramiento Norte km 9.6, Carretera Irapuato-León, Irapuato, Guanajuato 36821, México
| | - Mauricio Carrillo-Tripp
- Laboratorio de la Diversidad Biomolecular, Unidad de Genómica Avanzada, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Libramiento Norte km 9.6, Carretera Irapuato-León, Irapuato, Guanajuato 36821, México
| | - Laura Silva-Rosales
- Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, km 9.6 Libramiento Norte, Carretera Irapuato-León, Irapuato, Guanajuato 36821, México
| | - Rodolfo Hernández-Gutiérrez
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, Guadalajara, Jalisco 44270, México
| | - Abel Gutiérrez-Ortega
- Unidad de Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Normalistas 800, Colinas de la Normal, Guadalajara, Jalisco 44270, México
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10
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Alvarez AH, Gutiérrez-Ortega A, Hernández-Gutiérrez R. Identification of immunodominant proteins from Mannheimia haemolytica and Histophilus somni by an immunoproteomic approach. Can J Vet Res 2015; 79:339-342. [PMID: 26424916 PMCID: PMC4581680] [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] [Received: 06/13/2014] [Accepted: 08/20/2014] [Indexed: 06/05/2023]
Abstract
Mannheimia haemolytica and Histophilus somni are frequently isolated from diseased cattle with bovine respiratory disease (BRD). They compromise animal lung function and the immune responses generated are not sufficient to limit infection. Identification of specific immunogenic antigens for vaccine development represents a great challenge. Immunogenic proteins were identified by immunoproteomic approach with sera from cattle immunized with a commercial cellular vaccine of M. haemolytica and H. somni. Proteins of M. haemolytica were identified as solute ABC transporter, iron-binding protein, and hypothetical protein of capsular biosynthesis. Histophilus somni proteins correspond to porin, amino acid ABC transporter, hypothetical outer membrane protein, cysteine synthase, and outer membrane protein P6. Although these antigens share strong similarities with other proteins from animal pathogens, the ABC system proteins have been associated with virulence and these proteins could be considered as potential vaccine candidates for BRD.
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Affiliation(s)
| | | | - Rodolfo Hernández-Gutiérrez
- Address all correspondence to Dr. Rodolfo Hernández-Gutiérrez; telephone: +52 33 33455200, ext. 1804; fax: +52 33 33455200, ext. 1001; e-mail:
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11
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Flores-Fernández JM, Gutiérrez-Ortega A, Padilla-Camberos E, Rosario-Cruz R, Hernández-Gutiérrez R, Martínez-Velázquez M. Molecular cloning and characterization of a glycine-like receptor gene from the cattle tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae). Parasite 2014; 21:43. [PMID: 25174962 PMCID: PMC4150426 DOI: 10.1051/parasite/2014047] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 08/15/2014] [Indexed: 11/18/2022] Open
Abstract
The cattle tick Rhipicephalus (Boophilus) microplus is the most economically important ectoparasite affecting the cattle industry in tropical and subtropical areas around the world. The principal method of tick control has relied mainly on the use of chemical acaricides, including ivermectin; however, cattle tick populations resistant to ivermectin have recently been reported in Brazil, Mexico, and Uruguay. Currently, the molecular basis for ivermectin susceptibility and resistance are not well understood in R. microplus. This prompted us to search for potential molecular targets for ivermectin. Here, we report the cloning and molecular characterization of a R. microplus glycine-like receptor (RmGlyR) gene. The characterized mRNA encodes for a 464-amino acid polypeptide, which contains features common to ligand-gated ion channels, such as a large N-terminal extracellular domain, four transmembrane domains, a large intracellular loop and a short C-terminal extracellular domain. The deduced amino acid sequence showed around 30% identity to GlyRs from some invertebrate and vertebrate organisms. The polypeptide also contains the PAR motif, which is important for forming anion channels, and a conserved glycine residue at the third transmembrane domain, which is essential for high ivermectin sensitivity. PCR analyses showed that RmGlyR is expressed at egg, larval and adult developmental stages. Our findings suggest that the deduced receptor is an additional molecular target to ivermectin and it might be involved in ivermectin resistance in R. microplus.
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Affiliation(s)
- José Miguel Flores-Fernández
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, AC, Av. Normalistas 800, Col. Colinas de la Normal, 44270 Guadalajara, Jalisco, México
| | - Abel Gutiérrez-Ortega
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, AC, Av. Normalistas 800, Col. Colinas de la Normal, 44270 Guadalajara, Jalisco, México
| | - Eduardo Padilla-Camberos
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, AC, Av. Normalistas 800, Col. Colinas de la Normal, 44270 Guadalajara, Jalisco, México
| | - Rodrigo Rosario-Cruz
- Centro Nacional de Investigaciones en Parasitología Veterinaria-INIFAP, Carretera Federal Cuernavaca Cuautla No. 8534, Colonia Progreso, 62550 Jiutepec, Morelos, México
| | - Rodolfo Hernández-Gutiérrez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, AC, Av. Normalistas 800, Col. Colinas de la Normal, 44270 Guadalajara, Jalisco, México
| | - Moisés Martínez-Velázquez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, AC, Av. Normalistas 800, Col. Colinas de la Normal, 44270 Guadalajara, Jalisco, México
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12
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Pedroza-Roldán C, Aceves-Sánchez MDJ, Zaveri A, Charles-Niño C, Elizondo-Quiroga DE, Hernández-Gutiérrez R, Allen K, Visweswariah SS, Flores-Valdez MA. The adenylyl cyclase Rv2212 modifies the proteome and infectivity of Mycobacterium bovis BCG. Folia Microbiol (Praha) 2014; 60:21-31. [PMID: 25038956 DOI: 10.1007/s12223-014-0335-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 06/26/2014] [Indexed: 12/25/2022]
Abstract
All organisms have the capacity to sense and respond to environmental changes. These signals often involve the use of second messengers such as cyclic adenosine monophosphate (cAMP). This second messenger is widely distributed among organisms and coordinates gene expression related with pathogenesis, virulence, and environmental adaptation. Genomic analysis in Mycobacterium tuberculosis has identified 16 adenylyl cyclases (AC) and one phosphodiesterase, which produce and degrade cAMP, respectively. To date, ten AC have been biochemically characterized and only one (Rv0386) has been found to be important during murine infection with M. tuberculosis. Here, we investigated the impact of hsp60-driven Rv2212 gene expression in Mycobacterium bovis Bacillus Calmette-Guerin (BCG) during growth in vitro, and during macrophage and mice infection. We found that hsp60-driven expression of Rv2212 resulted in an increased capacity of replication in murine macrophages but an attenuated phenotype in lungs and spleen when administered intravenously in mice. Furthermore, this strain displayed an altered proteome mainly affecting proteins associated with stress conditions (bfrB, groEL-2, DnaK) that could contribute to the attenuated phenotype observed in mice.
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Affiliation(s)
- César Pedroza-Roldán
- Biotecnología Médica y Farmacéutica, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Col. Colinas de la Normal, 44270, Guadalajara, Jalisco, Mexico,
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13
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Jiménez B, Hinojoza-Loza E, Flores-Valdez M, Prado-Montes de Oca E, Allen K, Estrada-Chávez C, Herrera-Rodríguez S, Flores-Fernández J, Martínez-Velázquez M, Hernández-Gutiérrez R, Alvarez A. Expression of non-replicating persistence associated genes of Mycobacterium bovis in lymph nodes from skin test-reactor cattle. Microb Pathog 2013; 61-62:23-8. [DOI: 10.1016/j.micpath.2013.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 04/11/2013] [Accepted: 04/23/2013] [Indexed: 11/28/2022]
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14
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Espino-Sevilla MT, Jaramillo-Flores ME, Hernández-Gutiérrez R, Mateos-Díaz JC, Espinosa-Andrews H, Barba de la Rosa AP, Rodiles-López JO, Villanueva-Rodríguez S, Lugo-Cervantes EC. Functional properties of Ditaxis heterantha proteins. Food Sci Nutr 2013; 1:254-265. [PMID: 29387355 PMCID: PMC5779325 DOI: 10.1002/fsn3.34] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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: 11/19/2012] [Revised: 03/06/2013] [Accepted: 03/20/2013] [Indexed: 11/24/2022] Open
Abstract
Ditaxis heterantha is a plant of the Euphorbiaceae family that grows in semiarid regions of Mexico. It produces yellow pigmented seeds that are used for coloring of foods. The seeds contain about 20% of proteins. Proteins of D. heterantha were extracted and fractionated on the basis of solubility. Three main protein fractions were obtained: glutelins, 488 ± 0.5; albumins, 229 ± 2; and total globulins, 160 ± 1 g/kg. The amino acid profile was evaluated for each fraction and protein isolated, where the protein isolate contains essential amino acids such as Val, Phe, Tyr, and Leu. A calorimetric study showed that globulins and glutelins have a high denaturing temperature between 100 and 106°C, while albumins showed a denaturing temperature at 76°C. The protein isolate and its fractions exhibited functional properties: the isolated protein demonstrated good oil‐holding capacity of 40.7 g/kg. Foam capacity (FC) and foam stability (FS) were observed principally in glutelins and globulins where FC maximum was 330% and the FS was 28 min. The emulsifying capacity was observed in the same fractions of glutelins and globulins, followed by albumins. However, the glutelin fraction in particular was the only fraction that exhibited emulsifying stability at pH 5, 6, and 7. Gelling capacity was observed in albumins and globulins. This study indicated that protein isolated from D. heterantha could be used in food formulations due to its essential amino acid profile. Glutelin could be used as an emulsifying additive. Additionally, glutelin and globulin were stable at temperatures above 100°C; this is an important factor in food industry, principally in heat processes.
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Affiliation(s)
- Ma T Espino-Sevilla
- Departamento de Ciencias Tecnológicas Centro Universitario la Ciénega Av. Universidad, Núm. 111547820 Ocotlán Jalisco México
| | - Maria E Jaramillo-Flores
- Departamento de Graduados e Investigación de Alimentos Escuela Nacional de Ciencias Biológicas (ENCB) Instituto Politécnico Nacional (IPN) Carpio y Plan de Ayala 11340 México, D.F México
| | - Rodolfo Hernández-Gutiérrez
- Unidad de Tecnología Alimentaria Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Av. Normalistas 80044270 Guadalajara México
| | - Juan C Mateos-Díaz
- Unidad de Tecnología Alimentaria Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Av. Normalistas 80044270 Guadalajara México
| | - Hugo Espinosa-Andrews
- Unidad de Tecnología Alimentaria Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Av. Normalistas 80044270 Guadalajara México
| | - Ana P Barba de la Rosa
- Instituto Potosino de Investigación Científica y Tecnológica (IPCYT) Camino a La Presa de San José 2055, Lomas 4a Sección 78216 San Luis Potosí México
| | - Jose O Rodiles-López
- Departamento de Graduados e Investigación de Alimentos Escuela Nacional de Ciencias Biológicas (ENCB) Instituto Politécnico Nacional (IPN) Carpio y Plan de Ayala 11340 México, D.F México
| | - Socorro Villanueva-Rodríguez
- Unidad de Tecnología Alimentaria Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C., Av. Normalistas 80044270 Guadalajara México
| | - Eugenia C Lugo-Cervantes
- Departamento de Ciencias Tecnológicas Centro Universitario la Ciénega Av. Universidad, Núm. 111547820 Ocotlán Jalisco México
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15
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López-Árias E, Aguilar-Lemarroy A, Felipe Jave-Suárez L, Morgan-Villela G, Mariscal-Ramírez I, Martínez-Velázquez M, Alvarez AH, Gutiérrez-Ortega A, Hernández-Gutiérrez R. Alpha 1-antitrypsin: a novel tumor-associated antigen identified in patients with early-stage breast cancer. Electrophoresis 2012; 33:2130-7. [PMID: 22821488 DOI: 10.1002/elps.201100491] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Several studies have demonstrated that sera from patients with cancer contain antibodies that recognize a unique group of autologous antigens called tumor-associated antigens (TAA). In the current study, we employed an immunoproteomic approach, combining 2DE, Western blot, and MALDI-MS to identify TAA in the sera of patients diagnosed with infiltrating ductal or in situ carcinoma breast cancer. Sera obtained from 25 newly diagnosed patients with stage II breast cancer and 20 healthy volunteers was evaluated for the presence of novel TAA. Alpha 1-antitrypsin (A1AT) antibodies were detected in 24 of 25 patients with breast cancer (96%) and in 2 of 20 controls (10%). Sensitivity of detection of autoantibodies against A1AT in patients with breast cancer was 96%. Our preliminary results suggest that A1AT and autoantibodies against alpha 1 antitrypsin may be useful serum biomarkers for early-stage breast cancer screening and diagnosis.
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Affiliation(s)
- Eneida López-Árias
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C.-CIATEJ, Guadalajara, México
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16
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Beltrán PK, Gutiérrez-Ortega A, Puebla-Pérez AM, Gutiérrez-Pabello JA, Flores-Valdez MA, Hernández-Gutiérrez R, Martínez-Velázquez M, Álvarez AH. Identification of immunodominant antigens of Mycobacterium bovis by expression library immunization. Vet J 2011; 190:181-3. [DOI: 10.1016/j.tvjl.2010.09.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 09/20/2010] [Accepted: 09/23/2010] [Indexed: 11/30/2022]
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17
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González-Lázaro M, González-Robles A, Hernández-Gutiérrez R, Arroyo R. HeLa cell nucleus, a source of thymidine for Trichomonas vaginalis growing in vitro. Int J Biochem Cell Biol 2005; 37:166-76. [PMID: 15381159 DOI: 10.1016/j.biocel.2004.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 11/28/2003] [Revised: 06/05/2004] [Accepted: 06/08/2004] [Indexed: 11/19/2022]
Abstract
Trichomonas vaginalis is a parasitic protist incapable of de novo purine and pyrimidine biosynthesis. The lack of these de novo syntheses of nucleotides is supplemented with purine and pyrimidine salvage pathways. Likewise, T. vaginalis is incapable of converting its ribonucleotides to deoxyribonucleotides. Therefore, the parasite must rely on the salvage of exogenous deoxyribonucleosides for DNA synthesis. It has been demonstrated that the parasite can incorporate external adenine and guanine in vitro, but no in vivo nucleotide source has been identified so far. Accordingly, we set out to determine if the parasite could incorporate 3H-thymidine from the nuclei of a cervical-derived cell line into its own DNA. By light and electron microscopy we found that the parasite was able to interact directly, both with mechanically isolated HeLa cell nuclei and with the nuclei released after the disruption of HeLa cell monolayers by the parasite. This study shows that T. vaginalis was capable of incorporating 3H-thymidine from labeled HeLa cells into its own DNA suggesting that the nuclei of this cervical cell line could be an in vivo source of nucleotides for T. vaginalis.
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Affiliation(s)
- Mónica González-Lázaro
- Departamento de Patología Experimental, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Av. IPN 2508, Col. San Pedro Zacatenco, C.P. 07360, Mexico City, Mexico
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18
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Hernández-Gutiérrez R, Avila-González L, Ortega-López J, Cruz-Talonia F, Gómez-Gutierrez G, Arroyo R. Trichomonas vaginalis: characterization of a 39-kDa cysteine proteinase found in patient vaginal secretions. Exp Parasitol 2004; 107:125-35. [PMID: 15363938 DOI: 10.1016/j.exppara.2004.05.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [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: 06/05/2003] [Revised: 05/19/2004] [Accepted: 05/20/2004] [Indexed: 10/26/2022]
Abstract
Trichomonosis, a chronic sexually transmitted disease, remains a public health problem affecting yearly over 170 million people worldwide. This disease is caused by Trichomonas vaginalis, a protozoan flagellate rich in cysteine proteinases (CPs). Although CPs are involved in trichomonal cytopathogenicity, only few of them have been defined as virulence factors. In this study, we characterize a T. vaginalis 39-kDa proteinase (CP39) found in vaginal secretions from patients with trichomonosis. The CP39 proteinase bound to HeLa epithelial cells, vaginal epithelial cells (VECs), and human prostatic cancer cells (DU-145). CP39 did not bind to a human colon cancer (CaCo) cell line, suggesting tissue-specific binding. CP39 was found in six fresh trichomonad isolates tested. In two-dimensional gels, CP39 appeared as a single spot with a pI 4.5. CP39 is inhibited by E-64, stable at 50 degrees C, and active in a wide pH range (3.6-9.0), with an optimum pH at 7.0. In addition, CP39 degraded collagens I, III, IV, and V, human fibronectin, human hemoglobin, and human immunoglobulins A and G. Indirect immunofluorescence detected CP39 on the parasite surface with specific polyclonal antibody to purified CP39. Finally, CP39 was found to be immunogenic, as evidenced by detection on immunoblots with serum of patients with trichomonosis, but not control individuals. These data suggest that CP39 may play a role during trichomonal infection.
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Affiliation(s)
- Rodolfo Hernández-Gutiérrez
- Departamento de Patología Experimental, Centro de Investigación y de Estudios Avanzados del IPN, Apdo. Postal 14-740, 07300, México, DF, Mexico
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