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Barssotti L, Soares GM, Marconato-Júnior E, Lourençoni Alves B, Oliveira KM, Carneiro EM, Boschero AC, Barbosa HCL. KSRP improves pancreatic beta cell function and survival. Sci Rep 2024; 14:6136. [PMID: 38480757 PMCID: PMC10937633 DOI: 10.1038/s41598-024-55505-8] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 02/24/2024] [Indexed: 03/17/2024] Open
Abstract
Impaired insulin production and/or secretion by pancreatic beta cells can lead to high blood glucose levels and type 2 diabetes (T2D). Therefore, investigating new proteins involved in beta cell response to stress conditions could be useful in finding new targets for therapeutic approaches. KH-type splicing regulatory protein (KSRP) is a protein usually involved in gene expression due to its role in post-transcriptional regulation. Although there are studies describing the important role of KSRP in tissues closely related to glucose homeostasis, its effect on pancreatic beta cells has not been explored so far. Pancreatic islets from diet-induced obese mice (C57BL/6JUnib) were used to determine KSRP expression and we also performed in vitro experiments exposing INS-1E cells (pancreatic beta cell line) to different stressors (palmitate or cyclopiazonic acid-CPA) to induce cellular dysfunction. Here we show that KSRP expression is reduced in all the beta cell dysfunction models tested. In addition, when manipulated to knock down KSRP, beta cells exhibited increased death and impaired insulin secretion, whereas KSRP overexpression prevented cell death and increased insulin secretion. Taken together, our findings suggest that KSRP could be an important target to protect beta cells from impaired functioning and death.
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Affiliation(s)
- Leticia Barssotti
- Obesity and Comorbidities Research Center (OCRC), Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083864, Brazil
| | - Gabriela Moreira Soares
- Obesity and Comorbidities Research Center (OCRC), Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083864, Brazil
| | - Emílio Marconato-Júnior
- Obesity and Comorbidities Research Center (OCRC), Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083864, Brazil
| | - Bruna Lourençoni Alves
- Obesity and Comorbidities Research Center (OCRC), Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083864, Brazil
| | - Kênia Moreno Oliveira
- Obesity and Comorbidities Research Center (OCRC), Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083864, Brazil
| | - Everardo Magalhães Carneiro
- Obesity and Comorbidities Research Center (OCRC), Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083864, Brazil
| | - Antonio Carlos Boschero
- Obesity and Comorbidities Research Center (OCRC), Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083864, Brazil
| | - Helena Cristina Lima Barbosa
- Obesity and Comorbidities Research Center (OCRC), Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083864, Brazil.
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Zangerolamo L, Soares GM, Rosa LRDO, Santos KR, Bronczek GA, Marconato-Júnior E, Carneiro EM, Barbosa-Sampaio HCDL. The use of the "Endocrine Circuit" as an active learning methodology to aid in the understanding of the human endocrine system. Adv Physiol Educ 2020; 44:124-130. [PMID: 32108512 DOI: 10.1152/advan.00123.2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The search for more efficient teaching methodologies is a great challenge for Brazilian educators, since most classes are still traditional (theoretical) and have little student involvement during the learning process. Active learning methodologies, where students play a central role in the learning process, are proving to be more effective and interesting when it comes to acquiring knowledge. Thus we decided to develop an innovative technique for teaching Human Endocrine Physiology, called "Endocrine Circuit." The circuit consisted of eight stations in which students were asked to organize a scheme with cards to answer a specific question about a gland or tissue with endocrine relevance. The effectiveness of the developed activity was validated through a pretest-posttest design, in which the students had to answer a 10-question test. We found out that, after the Endocrine Circuit application, students showed an improvement in the percentage of correct answers for 7 out of 10 questions contained in the questionnaire (P ≤ 0.05). In addition, the activity showed positive outcomes regarding student's engagement in this study, besides showing to be more efficient than the Brazilian traditional theoretical classes.
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Affiliation(s)
- Lucas Zangerolamo
- Department of Structural and Functional Biology, Obesity and Comorbidities Research Center, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Gabriela Moreira Soares
- Department of Structural and Functional Biology, Obesity and Comorbidities Research Center, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Lucas Rodolfo de Oliveira Rosa
- Department of Structural and Functional Biology, Obesity and Comorbidities Research Center, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Karina Rodrigues Santos
- Department of Structural and Functional Biology, Obesity and Comorbidities Research Center, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Gabriela Alves Bronczek
- Department of Structural and Functional Biology, Obesity and Comorbidities Research Center, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Emílio Marconato-Júnior
- Department of Structural and Functional Biology, Obesity and Comorbidities Research Center, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Everardo Magalhães Carneiro
- Department of Structural and Functional Biology, Obesity and Comorbidities Research Center, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Helena Cristina de Lima Barbosa-Sampaio
- Department of Structural and Functional Biology, Obesity and Comorbidities Research Center, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
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