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Soto-Domínguez A, Salas-Treviño D, Guillén-Meléndez GA, Castillo-Velázquez U, Ballesteros-Elizondo RG, Montes-de-Oca-Saucedo CR, Villa-Cedillo SA, Morales-Ávalos R, Rodríguez-Tovar LE, Montes-de-Oca-Luna R, Saucedo-Cárdenas O. Histopathological, ultrastructural, and biochemical traits of apoptosis induced by peroxisomicine A1 (toxin T-514) from Karwinskia parvifolia in kidney and lung. Toxicon X 2022; 17:100148. [PMID: 36593898 PMCID: PMC9803956 DOI: 10.1016/j.toxcx.2022.100148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 11/30/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Peroxisomicine A1 (PA1) is a toxin isolated from the Karwinskia genus plants whose target organs are the liver, kidney, and lung. In vitro studies demonstrated the induction of apoptosis by PA1 in cancer cell lines, and in vivo in the liver. Apoptosis has a wide range of morphological features such as cell shrinkage, plasma membrane blistering, loss of microvilli, cytoplasm, and chromatin condensation, internucleosomal DNA fragmentation, and formation of apoptotic bodies that are phagocytized by resident macrophages or nearby cells. Early stages of apoptosis can be detected by mitochondrial alterations. We investigated the presence of apoptosis in vivo at the morphological, ultrastructural, and biochemical levels in two target organs of PA1: kidney and lung. Sixty CD-1 mice were divided into three groups (n = 20): untreated control (ST), vehicle control (VH), and PA1 intoxicated group (2LD50). Five animals of each group were sacrificed at 4, 8, 12, and 24 h post-intoxication. Kidney and lung were examined by morphometry, histopathology, ultrastructural, and DNA fragmentation analysis. Pre-apoptotic mitochondrial alterations were present at 4 h. Apoptotic bodies were observed at 8 h and increased over time. TUNEL positive cells were detected as early as 4 h, and the DNA ladder pattern was observed at 12 h and 24 h. The liver showed the highest value of fragmented DNA, followed by the kidney and the lung. We demonstrated the induction of apoptosis by a toxic dose of PA1 in the kidney and lung in vivo. These results could be useful in understanding the mechanism of action of this compound at toxic doses in vivo.
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Affiliation(s)
- Adolfo Soto-Domínguez
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Departamento de Histología, Av. Madero y E. Aguirre-Pequeño s/n, Col. Mitras Centro, Monterrey, N.L, C.P. 64460, Mexico
| | - Daniel Salas-Treviño
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Departamento de Histología, Av. Madero y E. Aguirre-Pequeño s/n, Col. Mitras Centro, Monterrey, N.L, C.P. 64460, Mexico
| | - Gloria A. Guillén-Meléndez
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Departamento de Histología, Av. Madero y E. Aguirre-Pequeño s/n, Col. Mitras Centro, Monterrey, N.L, C.P. 64460, Mexico
| | - Uziel Castillo-Velázquez
- Universidad Autónoma de Nuevo León, Facultad de Medicina Veterinaria y Zootecnia, Cuerpo Académico de Zoonosis y Enfermedades Emergentes. General Escobedo, N. L, C.P. 66050, Mexico
| | - Raquel G. Ballesteros-Elizondo
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Departamento de Histología, Av. Madero y E. Aguirre-Pequeño s/n, Col. Mitras Centro, Monterrey, N.L, C.P. 64460, Mexico
| | - Carlos R. Montes-de-Oca-Saucedo
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Departamento de Histología, Av. Madero y E. Aguirre-Pequeño s/n, Col. Mitras Centro, Monterrey, N.L, C.P. 64460, Mexico
| | - Sheila A. Villa-Cedillo
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Departamento de Histología, Av. Madero y E. Aguirre-Pequeño s/n, Col. Mitras Centro, Monterrey, N.L, C.P. 64460, Mexico
| | - Rodolfo Morales-Ávalos
- Universidad Autónoma de Nuevo León. Facultad de Medicina, Departamento de Fisiología. Av. Madero y E. Aguirre-Pequeño s/n, Col. Mitras Centro, Monterrey, N.L, C.P. 64460, Mexico
| | - Luis E. Rodríguez-Tovar
- Universidad Autónoma de Nuevo León, Facultad de Medicina Veterinaria y Zootecnia, Cuerpo Académico de Zoonosis y Enfermedades Emergentes. General Escobedo, N. L, C.P. 66050, Mexico
| | - Roberto Montes-de-Oca-Luna
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Departamento de Histología, Av. Madero y E. Aguirre-Pequeño s/n, Col. Mitras Centro, Monterrey, N.L, C.P. 64460, Mexico
| | - Odila Saucedo-Cárdenas
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Departamento de Histología, Av. Madero y E. Aguirre-Pequeño s/n, Col. Mitras Centro, Monterrey, N.L, C.P. 64460, Mexico
- Corresponding author. Departamento de Histología Facultad de Medicina, UANL, Monterrey, N.L, 64460, Mexico.
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Pedroza-Montoya FE, Tamez-Mata YA, Simental-Mendía M, Soto-Domínguez A, García-Pérez MM, Said-Fernández S, Montes-de-Oca-Luna R, González-Flores JR, Martínez-Rodríguez HG, Vilchez-Cavazos F. Repair of ovine peripheral nerve injuries with xenogeneic human acellular sciatic nerves prerecellularized with allogeneic Schwann-like cells-an innovative and promising approach. Regen Ther 2022; 19:131-143. [PMID: 35229011 PMCID: PMC8850753 DOI: 10.1016/j.reth.2022.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 01/11/2022] [Accepted: 01/27/2022] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION The iatrogenic effects of repairing peripheral nerve injuries (PNIs) with autografts (AGTs) encouraged the present study to involve a new approach consisting of grafting xenogeneic prerecellularized allogeneic cells instead of AGTs. METHODS We compared sheep's AGT regenerative and functional capacity with decellularized human nerves prerecellularized with allogeneic Schwann-like cell xenografts (onwards called xenografts). Mesenchymal stem cells were isolated from ovine adipose tissue and induced in vitro to differentiate into Schwann-like cells (SLCs). Xenografts were grafted in ovine sciatic nerves. Left sciatic nerves (20 mm) were excised from 10 sheep. Then, five sheep were grafted with 20 mm xenografts, and five were reimplanted with their nerve segment rotated 180° (AGT). RESULTS All sheep treated with xenografts or AGT progressively recovered the strength, movement, and coordination of their intervened limb, which was still partial when the study was finished at sixth month postsurgery. At this time, numerous intrafascicular axons were observed in the distal and proximal graft extremes of both xenografts or AGTs, and submaximal nerve electrical conduction was observed. The xenografts and AGT-affected muscles appeared partially stunted. CONCLUSIONS Xenografts and AGT were equally efficacious in starting PNI repair and justified further studies using longer observation times. The hallmarks from this study are that human xenogeneic acellular scaffolds were recellularized with allogenic SCL and were not rejected by the nonhuman receptors but were also as functional as AGT within a relatively short time postsurgery. Thus, this innovative approach promises to be more practical and accessible than AGT or allogenic allografts and safer than AGT for PNI repair.
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Affiliation(s)
- Florencia-E. Pedroza-Montoya
- Autonomous University of Nuevo Leon (UANL), Medicine School, Department of Biochemistry and Molecular Medicine, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
| | - Yadira-A. Tamez-Mata
- UANL, Medicine School and University Hospital “Dr. José Eleuterio González”, Orthopedics and Traumatology Service, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
| | - Mario Simental-Mendía
- UANL, Medicine School and University Hospital “Dr. José Eleuterio González”, Orthopedics and Traumatology Service, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
| | - Adolfo Soto-Domínguez
- UANL, Medicine School, Department of Histology, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
| | - Mauricio-M. García-Pérez
- UANL, Medicine School and University Hospital “Dr. José. Eleuterio González” Service of Plastic Surgery, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
| | - Salvador Said-Fernández
- Autonomous University of Nuevo Leon (UANL), Medicine School, Department of Biochemistry and Molecular Medicine, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
| | - Roberto Montes-de-Oca-Luna
- UANL, Medicine School, Department of Histology, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
| | - José-R. González-Flores
- UANL, Medicine School and University Hospital “Dr. José. Eleuterio González” Service of Plastic Surgery, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
| | - Herminia-G. Martínez-Rodríguez
- Autonomous University of Nuevo Leon (UANL), Medicine School, Department of Biochemistry and Molecular Medicine, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
| | - Félix Vilchez-Cavazos
- UANL, Medicine School and University Hospital “Dr. José Eleuterio González”, Orthopedics and Traumatology Service, Av. Madero and Dr. Eduardo Aguirre Pequeño S/N Col. Mitras Centro, Monterrey, Nuevo Leon C.P 64460, Mexico
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Guillén-Meléndez GA, Villa-Cedillo SA, Pérez-Hernández RA, Castillo-Velázquez U, Salas-Treviño D, Saucedo-Cárdenas O, Montes-de-Oca-Luna R, Gómez-Tristán CA, Garza-Arredondo AJ, Zamora-Ávila DE, de Jesús Loera-Arias M, Soto-Domínguez A. Cytotoxic Effect In Vitro of Acalypha monostachya Extracts over Human Tumor Cell Lines. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10112326. [PMID: 34834687 PMCID: PMC8617932 DOI: 10.3390/plants10112326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
Acalypha monostachya (A. monostachya) is a plant that is used in traditional medicine as a cancer treatment; however, its effect has not been validated. In this study, the potential cytotoxic effects and morphological changes of A. monostachya were evaluated in human tumor cell lines. The aqueous (AE), methanolic (ME), and hexane (HE) extracts were obtained, and flavonoid-type phenolic compounds were detected, which indicates an antineoplastic effect. We observed a time-dependent and concentration-selective toxicity in human tumor cells. Additionally, the ME and HE showed the greatest cytotoxic effect at minimum concentrations compared to the AE, which showed this effect at the highest concentrations. All extracts induced significant morphological changes in tumor cells. The HeLa (cervix carcinoma) cells were more sensitive compared to the MDA-MB-231 (triple-negative breast cancer) cells. In conclusion, we demonstrated a cytotoxic in vitro effect of A. monostachya extracts in tumoral human cell lines. These results show the potential antineoplastic effects of A. monostachya in vitro. Hereafter, our lab team will continue working to usefully isolate and obtain the specific compounds of A. monostachya extracts with cytotoxic effects on tumor cells to find more alternatives for cancer treatment.
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Affiliation(s)
- Gloria A. Guillén-Meléndez
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey C.P. 64460, NL, Mexico; (G.A.G.-M.); (S.A.V.-C.); (D.S.-T.); (O.S.-C.); (R.M.-d.-O.-L.); (C.A.G.-T.)
| | - Sheila A. Villa-Cedillo
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey C.P. 64460, NL, Mexico; (G.A.G.-M.); (S.A.V.-C.); (D.S.-T.); (O.S.-C.); (R.M.-d.-O.-L.); (C.A.G.-T.)
| | - Raymundo A. Pérez-Hernández
- Departamento de Química, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza C.P. 64455, NL, Mexico;
| | - Uziel Castillo-Velázquez
- Departamento de Inmunología, Facultad de Medicina Veterinaria, Universidad Autónoma de Nuevo León, Escobedo C.P. 66050, NL, Mexico;
| | - Daniel Salas-Treviño
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey C.P. 64460, NL, Mexico; (G.A.G.-M.); (S.A.V.-C.); (D.S.-T.); (O.S.-C.); (R.M.-d.-O.-L.); (C.A.G.-T.)
| | - Odila Saucedo-Cárdenas
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey C.P. 64460, NL, Mexico; (G.A.G.-M.); (S.A.V.-C.); (D.S.-T.); (O.S.-C.); (R.M.-d.-O.-L.); (C.A.G.-T.)
- Departamento de Genética Molecular, Centro de Investigación Biomédica del Noreste (CIBIN) del IMSS, Monterrey C.P. 66720, NL, Mexico
| | - Roberto Montes-de-Oca-Luna
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey C.P. 64460, NL, Mexico; (G.A.G.-M.); (S.A.V.-C.); (D.S.-T.); (O.S.-C.); (R.M.-d.-O.-L.); (C.A.G.-T.)
| | - Christian A. Gómez-Tristán
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey C.P. 64460, NL, Mexico; (G.A.G.-M.); (S.A.V.-C.); (D.S.-T.); (O.S.-C.); (R.M.-d.-O.-L.); (C.A.G.-T.)
| | - Aimé Jazmín Garza-Arredondo
- Departamento de Reproducción, Facultad de Medicina Veterinaria, Universidad Autónoma de Nuevo León, Escobedo C.P. 66050, NL, Mexico;
| | - Diana Elisa Zamora-Ávila
- Departamento de Genética, Facultad de Medicina Veterinaria, Universidad Autónoma de Nuevo León, Escobedo C.P. 66050, NL, Mexico;
| | - María de Jesús Loera-Arias
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey C.P. 64460, NL, Mexico; (G.A.G.-M.); (S.A.V.-C.); (D.S.-T.); (O.S.-C.); (R.M.-d.-O.-L.); (C.A.G.-T.)
| | - Adolfo Soto-Domínguez
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey C.P. 64460, NL, Mexico; (G.A.G.-M.); (S.A.V.-C.); (D.S.-T.); (O.S.-C.); (R.M.-d.-O.-L.); (C.A.G.-T.)
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García-Garza R, Salas-Treviño D, Arguelles-Gutiérrez S, Carrizales-Sepúlveda EF, Treviño-Herrera AB, Guillén-Meléndez GA, Salazar-Leal ME, Castillo-Velázquez U, Montes-de-Oca-Luna R, Saucedo-Cárdenas O, Soto-Domínguez A. Neuropathic or systemic chronic intoxication with Karwinskia humboldtiana (Buckthorn) fruit? Histopathological effect in myocardial and skeletal muscle. Toxicon 2021; 203:1-11. [PMID: 34600913 DOI: 10.1016/j.toxicon.2021.09.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/26/2021] [Accepted: 09/21/2021] [Indexed: 11/26/2022]
Abstract
In accidental intoxicated animals and humans, Karwinskia humboldtiana (Kh) causes lesions in the central and peripheral nervous system and organs like the kidney, liver, and lung. The objective was to evaluate the histology of myocardium and skeletal muscle after experimental chronic intoxication with mature fruit of Kh in Wistar rat. Twenty-five rats were used and divided into five groups (n = 5): four intoxicated and one control. Kh fruit was ground, dried, sieved, and administered by an orogastric tube. Intoxicated rats received 3.5 g/kg body weight fractionated in 5 doses. Control rats received only water. Animals were euthanized at 24, 48, 58, and 112 days, respectively. Samples of the myocardium and skeletal muscle were obtained and processed for light microscopy evaluation. Morphological analyses were performed, including a microdensitometric analysis. Results showed areas of necrosis in the muscle fibers, fibers with vacuolated cytoplasm, and disorganization of myofilaments, as well as staining variations in both myocardium and skeletal muscle time-depending. Zones with loss of continuity of the external lamina were identified with PAS with the diastase histochemical method. Immunolabeling with specific antibodies demonstrated diminution of actin and desmin myofilaments. The microdensitometric analysis showed a statistically significant difference between the intoxicated vs control group. These findings demonstrate that chronic intoxication of Kh fruit also causes damage in myocardial and skeletal muscle, these alterations will be useful to understand that the toxic effects of Kh fruit in accidently intoxicated humans are systemic, and not only over the nervous system.
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Affiliation(s)
- Ruben García-Garza
- Autonomous University of Coahuila, Faculty of Medicine Torreon Unit, Department of Histology, Av. Gregorio A. García 198 Sur, Torreón, Coah., C.P. 27000, Mexico
| | - Daniel Salas-Treviño
- Autonomous University of Nuevo León, Faculty of Medicine, Department of Histology, Monterrey, N.L., CP64460, Mexico
| | - Samuel Arguelles-Gutiérrez
- Autonomous University of Nuevo León, Faculty of Medicine, Department of Histology, Monterrey, N.L., CP64460, Mexico
| | | | | | | | - Martha Elizabeth Salazar-Leal
- Autonomous University of Nuevo León, Faculty of Medicine, Department of Pharmacology and Toxicology, Monterrey, N.L., CP64460, Mexico
| | - Uziel Castillo-Velázquez
- Autonomous University of Nuevo León, Faculty of Veterinary Medicine and Zoothecnics, Department of Immunology, Escobedo, N.L., Mexico
| | - Roberto Montes-de-Oca-Luna
- Autonomous University of Nuevo León, Faculty of Medicine, Department of Histology, Monterrey, N.L., CP64460, Mexico
| | - Odila Saucedo-Cárdenas
- Autonomous University of Nuevo León, Faculty of Medicine, Department of Histology, Monterrey, N.L., CP64460, Mexico; Northeastern Biomedical Research Center (CIBIN), IMSS, San Luis y 2 de Abril, Col. Independencia, Monterrey, N.L., C.P. 64720, Mexico.
| | - Adolfo Soto-Domínguez
- Autonomous University of Nuevo León, Faculty of Medicine, Department of Histology, Monterrey, N.L., CP64460, Mexico.
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Jaramillo-Rangel G, Chávez-Briones MDL, Niderhauser-García A, Ortega-Martínez M. Toxicity and Anticancer Potential of Karwinskia: A Review. Molecules 2020; 25:E5590. [PMID: 33261194 PMCID: PMC7730948 DOI: 10.3390/molecules25235590] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022] Open
Abstract
Karwinskia genus consists of shrubs and small trees. Four toxic compounds have been isolated from Karwinskia plants, which were typified as dimeric anthracenones and named T496, T514, T516, and T544. Moreover, several related compounds have been isolated and characterized. Here we review the toxicity of the fruit of Karwinskia plants when ingested (accidentally or experimentally), as well as the toxicity of its isolated compounds. Additionally, we analyze the probable antineoplastic effect of T514. Toxins cause damage mainly to nervous system, liver, lung, and kidney. The pathophysiological mechanism has not been fully understood but includes metabolic and structural alterations that can lead cells to apoptosis or necrosis. T514 has shown selective toxicity in vitro against human cancer cells. T514 causes selective and irreversible damage to peroxisomes; for this reason, it was renamed peroxisomicine A1 (PA1). Since a significant number of malignant cell types contain fewer peroxisomes than normal cells, tumor cells would be more easily destroyed by PA1 than healthy cells. Inhibition of topoisomerase II has also been suggested to play a role in the effect of PA1 on malignant cells. More research is needed, but the evidence obtained so far indicates that PA1 could be an effective anticancer agent.
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Affiliation(s)
| | | | | | - Marta Ortega-Martínez
- Department of Pathology, School of Medicine, Autonomous University of Nuevo Leon, Monterrey 64460, Mexico; (G.J.-R.); (M.-d.-L.C.-B.); (A.N.-G.)
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6
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García-Garza R, Salas-Treviño D, Soto-Patiño FA, González-Murillo EA, Castelán-Maldonado EE, Saucedo-Cárdenas O, Romero-Díaz VJ, Velázquez-Gauna SE, Soto-Domínguez A. Fast acetone tissue processing of human organs provides tissue characteristics equal to conventional processing. Biotech Histochem 2020; 96:20-27. [PMID: 32527160 DOI: 10.1080/10520295.2020.1752935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Routine preparation of paraffin embedded tissue for histopathological diagnosis, here termed conventional histological technique (CT), whether performed manually or using an automated system, requires approximately 12 h. We developed earlier a rapid acetone dehydration technique (AT) for processing biopsies of nervous tissue that meets requirements for preserving tissue morphology and staining properties, and reduces processing time to 3.3 h. We compared the morphology and staining properties of human organ biopsies including adrenal gland, liver, ovary, pancreas, prostate, testis and thyroid prepared using both AT and CT. Following fixation with 10% formaldehyde and processing by either AT or CT, sections were stained using routine and special staining, and immunohistochemical methods. We evaluated nuclear and cytoplasmic staining, staining intensity, sharpness of images and presence of artifacts such as cracking and folding. AT preserved the morphology and staining properties of the tissues as well as CT. Consequently, the rapid AT procedure is a promising alternative technique for tissue processing.
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Affiliation(s)
- R García-Garza
- Department of Histology, Faculty of Medicine, Autonomous University of Coahuila , Torreón, Coah, México
| | - D Salas-Treviño
- Department of Histology, Faculty of Medicine, Autonomous University of Nuevo León , Monterrey, Nuevo León, México
| | - F A Soto-Patiño
- Department of Pathological Anatomy, Northeast National Medical Center, Mexican Institute of Social Security , Monterrey, Nuevo León, México
| | - E A González-Murillo
- Department of Pathological Anatomy, Northeast National Medical Center, Mexican Institute of Social Security , Monterrey, Nuevo León, México
| | - E E Castelán-Maldonado
- Department of Pathological Anatomy, Northeast National Medical Center, Mexican Institute of Social Security , Monterrey, Nuevo León, México
| | - O Saucedo-Cárdenas
- Department of Histology, Faculty of Medicine, Autonomous University of Nuevo León , Monterrey, Nuevo León, México.,Department of Molecular Genetics, Northeast Biomedical Research Centre of the Mexican Institute of Social Security , Monterrey, Nuevo León, México
| | - V J Romero-Díaz
- Department of Histology, Faculty of Medicine, Autonomous University of Nuevo León , Monterrey, Nuevo León, México
| | - S E Velázquez-Gauna
- Department of Embryology, Faculty of Medicine, Autonomous University of Coahuila , Torreón, Coah, México
| | - A Soto-Domínguez
- Department of Histology, Faculty of Medicine, Autonomous University of Nuevo León , Monterrey, Nuevo León, México
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Ortega-Martínez M, Gutiérrez-Dávila V, Niderhauser-García A, Salazar-Aranda R, Solís-Soto JM, Montes-de-Oca-Luna R, Jaramillo-Rangel G. Peroxisomicine A1, a potential antineoplastic agent, causes micropexophagy in addition to macropexophagy. Cell Biol Int 2020; 44:918-923. [PMID: 31814220 DOI: 10.1002/cbin.11280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 12/05/2019] [Indexed: 12/15/2022]
Abstract
Peroxisomicine A1 (PA1) is a potential antineoplastic agent with high and selective toxicity toward peroxisomes of tumor cells. Pexophagy is a selective autophagy process that degrades damaged peroxisomes; this process has been studied mainly in methylotrophic yeasts. There are two main modes of pexophagy in yeast: macropexophagy and micropexophagy. Previous studies showed that peroxisomes damaged by a prolonged exposition to PA1 are eliminated by macropexophagy. In this work, Candida boidinii was grown in methanol-containing media, and PA1 was added to the cultures at 2 µg/mL after they reached the mid-exponential growth phase. Samples were taken at 5, 10, 15, 20, and 25 min after the addition of PA1 and processed for ultrastructural analysis. Typical morphological characteristics of micropexophagy were observed: the direct engulfment of peroxisomes by the vacuolar membrane and the presence of the micropexophagic membrane apparatus (MIPA), which mediates the fusion between the opposing tips of the vacuole to complete sequestration of peroxisomes from the cytosol. In conclusion, here we report that, in addition to macropexophagy, peroxisomes damaged by PA1 can be eliminated by micropexophagy. This information is useful to deepen the knowledge of the mechanism of action of PA1 and of that of pexophagy per se.
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Affiliation(s)
- Marta Ortega-Martínez
- Department of Pathology, School of Medicine, Autonomous University of Nuevo Leon, Ave. Madero y Dr. Eduardo Aguirre P., Monterrey, Nuevo León, 64460, Mexico
| | - Vanessa Gutiérrez-Dávila
- Department of Pathology, School of Medicine, Autonomous University of Nuevo Leon, Ave. Madero y Dr. Eduardo Aguirre P., Monterrey, Nuevo León, 64460, Mexico
| | - Alberto Niderhauser-García
- Department of Pathology, School of Medicine, Autonomous University of Nuevo Leon, Ave. Madero y Dr. Eduardo Aguirre P., Monterrey, Nuevo León, 64460, Mexico
| | - Ricardo Salazar-Aranda
- Department of Analytical Chemistry, School of Medicine, Autonomous University of Nuevo Leon, Ave. Madero y Dr. Eduardo Aguirre P., Monterrey, Nuevo León, 64460, Mexico
| | - Juan M Solís-Soto
- Department of Physiology, School of Dentistry, Autonomous University of Nuevo Leon, Dr. Eduardo Aguirre P. y Silao, Monterrey, Nuevo León, 64460, Mexico
| | - Roberto Montes-de-Oca-Luna
- Department of Histology, School of Medicine, Autonomous University of Nuevo Leon, Ave. Madero y Dr. Eduardo Aguirre P., Monterrey, Nuevo León, 64460, Mexico
| | - Gilberto Jaramillo-Rangel
- Department of Pathology, School of Medicine, Autonomous University of Nuevo Leon, Ave. Madero y Dr. Eduardo Aguirre P., Monterrey, Nuevo León, 64460, Mexico
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