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Abril D, Lesmes-Leon DN, Marquez-Ortiz RA, Leal AL, Tovar-Acero C, Corredor Rozo ZL, Vanegas Gómez N, Escobar-Perez J. Draft genome of the Klebsiella pneumoniae 24Kpn33 and complete sequence of its pCOL-1, a plasmid related to the blaKPC-2 acquisition in Pseudomonas aeruginosa. Microbiol Resour Announc 2024; 13:e0007124. [PMID: 38497646 PMCID: PMC11008145 DOI: 10.1128/mra.00071-24] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 02/29/2024] [Indexed: 03/19/2024] Open
Abstract
We report the draft genome of a clinical multi-resistant Klebsiella pneumoniae (24Kpn33) isolate, whose genome (5.7 Mbp) harbored 17 antibiotic resistance genes, including blaKPC-2. Notably, this gene was mobilized within the IncP-6 pCOL-1 plasmid, the first genetic platform related to the acquisition and dissemination of the blaKPC-2 in Pseudomonas aeruginosa.
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Affiliation(s)
- Deisy Abril
- Bacterial Molecular Genetics Laboratory - LGMB, Universidad El Bosque, Bogotá, Colombia
| | - Duway Nicolas Lesmes-Leon
- Bacterial Molecular Genetics Laboratory - LGMB, Universidad El Bosque, Bogotá, Colombia
- University of Kaiserslautern-Landau (RPTU), Kaiserslautern, Germany
- German Research Center for Artificial Intelligence (DFKI), Kaiserslautern, Germany
| | | | - Aura Lucía Leal
- Facultad de Medicina y Grupo de Investigación en Enfermedades Infecciosas, Universidad Nacional de Colombia, Bogotá, Colombia
- Departamento de Patología y Laboratorios, Fundación Santa Fe de Bogotá, Bogotá, Colombia
| | - Catalina Tovar-Acero
- Grupo de Investigación en Enfermedades Tropicales y Resistencia Bacteriana, Universidad del Sinú, Montería, Colombia
| | | | - Natasha Vanegas Gómez
- Bacterial Molecular Genetics Laboratory - LGMB, Universidad El Bosque, Bogotá, Colombia
- The i3 Institute, Faculty of Science, University of Technology, Sydney, Australia
| | - Javier Escobar-Perez
- Bacterial Molecular Genetics Laboratory - LGMB, Universidad El Bosque, Bogotá, Colombia
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Puerta-Arias JD, Isaza Agudelo JP, Naranjo Preciado TW. Identification and production of novel potential pathogen-specific biomarkers for diagnosis of histoplasmosis. Microbiol Spectr 2023; 11:e0093923. [PMID: 37882565 PMCID: PMC10714873 DOI: 10.1128/spectrum.00939-23] [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: 03/03/2023] [Accepted: 09/08/2023] [Indexed: 10/27/2023] Open
Abstract
IMPORTANCE Histoplasmosis is considered one of the most important mycoses due to the increasing number of individuals susceptible to develop severe clinical forms, particularly those with HIV/AIDS or receiving immunosuppressive biological therapies, the high mortality rates reported when antifungal treatment is not initiated in a timely manner, and the limitations of conventional diagnostic methods. In this context, there is a clear need to improve the capacity of diagnostic tools to specifically detect the fungal pathogen, regardless of the patient's clinical condition or the presence of other co-infections. The proposed novel pathogen-specific biomarkers have the potential to be used in immunodiagnostic platforms and antifungal treatment monitoring in histoplasmosis. In addition, the bioinformatics strategy used in this study could be applied to identify potential diagnostic biomarkers in other models of fungal infection of public health importance.
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Affiliation(s)
- Juan David Puerta-Arias
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas (CIB-UdeA-UPB-UDES), Medellín, Colombia
- School of Health Sciences, Universidad Pontificia Bolivariana, Medellín, Colombia
- Universidad de Santander (UDES), Facultad de Ciencias Médicas y de la Salud, Bucaramanga, Colombia
| | | | - Tonny Williams Naranjo Preciado
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas (CIB-UdeA-UPB-UDES), Medellín, Colombia
- School of Health Sciences, Universidad Pontificia Bolivariana, Medellín, Colombia
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Garcés MF, Buell-Acosta JD, Rodríguez-Navarro HA, Páez-Leal MC, Maldonado-Acosta LM, Peralta-Franco JJ, Burgos-Cardenas ÁJ, Ángel-Müller E, Parada-Baños AJ, Parra-Pineda MO, Eslava-Schmalbach J, Escobar-Sarmiento CA, Lacunza E, Caminos-Cepeda SA, Castaño JP, Nogueiras R, Dieguez C, Ruiz-Parra AI, Caminos JE. A longitudinal study of free leptin index in pre-eclamptic pregnancies. J Cell Mol Med 2023; 27:1083-1094. [PMID: 36950780 PMCID: PMC10098289 DOI: 10.1111/jcmm.17707] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 02/17/2023] [Accepted: 02/22/2023] [Indexed: 03/24/2023] Open
Abstract
The ratio between circulating levels of leptin and soluble leptin receptor (sOB-R), the free leptin index (FLI), is used as a marker of leptin resistance. Therefore, the aim of our study was to investigate the FLI in mild pre-eclamptic pregnancies in a nested case-control study within a prospective observational study. Circulating levels of leptin and sOB-R levels rise significantly during pregnancy in healthy (p < 0.05) (n = 46) and pre-eclamptic pregnancies (p < 0.05) (n = 20). Serum levels of leptin were significantly higher in pre-eclamptic compared to healthy pregnancies at second and third trimesters of pregnancy (p < 0.05). Additionally, serum levels of sOB-R were significantly lower in pre-eclamptic pregnancies during the second and third trimesters of pregnancy compared to healthy pregnancies (p < 0.05). Moreover, we found that FLI did not vary significantly during pregnancy in healthy women (p > 0.05), while it increases in pre-eclamptic pregnancies (p < 0.05). Indeed, FLI was significantly higher at second and third trimesters of pregnancy in pre-eclamptic compared to healthy pregnancies (p < 0.05). In addition, FLI was significantly higher in the luteal phase compared with the follicular phase of the menstrual cycle in eumenorrheic women (p < 0.05). Receiver operating characteristic (ROC) curve analysis revealed the ability of leptin (AUC = 0.72) and FLI (AUC = 0.67) as a reliable predictor for mild pre-eclampsia during the second trimester of pregnancy. In conclusion, our findings show that FLI were significantly increased in mild pre-eclamptic pregnancies and allowed us to hypothesize that this rise might alter leptin bioavailability and bioactivity which might lead to the sympathetic hyperactivity and the hypertensive disorders during pregnancy.
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Affiliation(s)
- María Fernanda Garcés
- Department of Physiology, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
| | | | | | - María Carolina Páez-Leal
- Department of Public Health, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
| | - Luis Miguel Maldonado-Acosta
- Division of Endocrinology - Department of Internal Medicine, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
| | - Jhon Jairo Peralta-Franco
- Division of Endocrinology - Department of Internal Medicine, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
| | | | - Edith Ángel-Müller
- Department of Obstetrics and Gynecology, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
| | - Arturo José Parada-Baños
- Department of Obstetrics and Gynecology, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
| | - Mario Orlando Parra-Pineda
- Department of Obstetrics and Gynecology, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
| | | | | | - Ezequiel Lacunza
- Centro de Investigaciones Inmunológicas Básicas y Aplicadas (CINIBA), Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | | | - Justo P Castaño
- Department of Cell Biology, Physiology, and Immunology, Institute Maimonides for Biomedical Research of Cordoba, Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Rubén Nogueiras
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
- Department of Physiology (CIMUS), School of Medicine - Instituto de Investigaciones Sanitarias (IDIS), Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - Carlos Dieguez
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
- Department of Physiology (CIMUS), School of Medicine - Instituto de Investigaciones Sanitarias (IDIS), Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - Ariel Iván Ruiz-Parra
- Department of Obstetrics and Gynecology, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
| | - Jorge Eduardo Caminos
- Department of Physiology, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia
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Rodriguez-Soto MA, Suarez Vargas N, Riveros A, Camargo CM, Cruz JC, Sandoval N, Briceño JC. Failure Analysis of TEVG's I: Overcoming the Initial Stages of Blood Material Interaction and Stabilization of the Immune Response. Cells 2021; 10:3140. [PMID: 34831361 PMCID: PMC8625197 DOI: 10.3390/cells10113140] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/28/2021] [Accepted: 11/06/2021] [Indexed: 12/16/2022] Open
Abstract
Vascular grafts (VG) are medical devices intended to replace the function of a diseased vessel. Current approaches use non-biodegradable materials that struggle to maintain patency under complex hemodynamic conditions. Even with the current advances in tissue engineering and regenerative medicine with the tissue engineered vascular grafts (TEVGs), the cellular response is not yet close to mimicking the biological function of native vessels, and the understanding of the interactions between cells from the blood and the vascular wall with the material in operative conditions is much needed. These interactions change over time after the implantation of the graft. Here we aim to analyze the current knowledge in bio-molecular interactions between blood components, cells and materials that lead either to an early failure or to the stabilization of the vascular graft before the wall regeneration begins.
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Affiliation(s)
- Maria A. Rodriguez-Soto
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Natalia Suarez Vargas
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Alejandra Riveros
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Carolina Muñoz Camargo
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Juan C. Cruz
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
| | - Nestor Sandoval
- Department of Congenital Heart Disease and Cardiovascular Surgery, Fundación Cardio Infantil Instituto de Cardiología, Bogotá 111711, Colombia;
| | - Juan C. Briceño
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (N.S.V.); (A.R.); (C.M.C.); (J.C.C.)
- Department of Research, Fundación Cardio Infantil Instituto de Cardiología, Bogotá 111711, Colombia
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Giraldo ND, Correa SM, Arbeláez A, Figueroa FL, Ríos-Estepa R, Atehortúa L. Reducing self-shading effects in Botryococcus braunii cultures: effect of Mg 2+ deficiency on optical and biochemical properties, photosynthesis and lipidomic profile. BIORESOUR BIOPROCESS 2021; 8:33. [PMID: 38650232 PMCID: PMC10992481 DOI: 10.1186/s40643-021-00389-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 03/04/2021] [Accepted: 04/23/2021] [Indexed: 11/10/2022] Open
Abstract
Microalgae biomass exploitation as a carbon-neutral energy source is currently limited by several factors, productivity being one of the most relevant. Due to the high absorption properties of light-harvesting antenna, photosynthetic cells tend to capture an excessive amount of energy that cannot be entirely channeled through the electron transfer chain that ends up dissipated as heat and fluorescence, reducing the overall light use efficiency. Aiming to minimize this hurdle, in this work we studied the effect of decreasing concentrations of Magnesium (Mg2+) on the chlorophyll a content, photosynthetic performance, biomass and lipid production of autotrophic cultures of Botryococcus braunii LB 572. We also performed, for the first time, a comparative lipidomic analysis to identify the influence of limited Mg2+ supply on the lipid profile of this algae. The results indicated that a level of 0.0037 g L-1 MgSO4 caused a significant decline on chlorophyll a content with a concomitant 2.3-fold reduction in the biomass absorption coefficient. In addition, the Mg2+ limitation caused a decrease in the total carbohydrate content and triggered lipid accumulation, achieving levels of up to 53% DCW, whereas the biomass productivity remained similar for all tested conditions. The lipidome analysis revealed that the lowest Mg2+ concentrations also caused a differential lipid profile distribution, with an enrichment of neutral lipids and an increase of structural lipids. In that sense, we showed that Mg2+ limitation represents an alternative optimization approach that not only enhances accumulation of neutral lipids in B. braunii cells but also may potentially lead to a better areal biomass productivity due to the reduction in the cellular light absorption properties of the cells.
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Affiliation(s)
- Néstor David Giraldo
- Grupo de Biotecnología, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia.
| | - Sandra Marcela Correa
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam, Germany
| | - Andrés Arbeláez
- Grupo de Biotecnología, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia
| | - Felix L Figueroa
- Institute of Biotechnology and Blue Development (IBYDA), University of Malaga, Campus Universitario de Teatinos s/n, 29071, Málaga, Spain
| | - Rigoberto Ríos-Estepa
- Grupo de Bioprocesos, Departamento de Ingeniería Química, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia
| | - Lucía Atehortúa
- Grupo de Biotecnología, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia
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