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Dave N, Cetiner U, Arroyo D, Fonbuena J, Tiwari M, Barrera P, Lander N, Anishkin A, Sukharev S, Jimenez V. A novel mechanosensitive channel controls osmoregulation, differentiation, and infectivity in Trypanosoma cruzi. eLife 2021; 10:67449. [PMID: 34212856 PMCID: PMC8282336 DOI: 10.7554/elife.67449] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 02/11/2021] [Accepted: 07/01/2021] [Indexed: 12/19/2022] Open
Abstract
The causative agent of Chagas disease undergoes drastic morphological and biochemical modifications as it passes between hosts and transitions from extracellular to intracellular stages. The osmotic and mechanical aspects of these cellular transformations are not understood. Here we identify and characterize a novel mechanosensitive channel in Trypanosoma cruzi (TcMscS) belonging to the superfamily of small-conductance mechanosensitive channels (MscS). TcMscS is activated by membrane tension and forms a large pore permeable to anions, cations, and small osmolytes. The channel changes its location from the contractile vacuole complex in epimastigotes to the plasma membrane as the parasites develop into intracellular amastigotes. TcMscS knockout parasites show significant fitness defects, including increased cell volume, calcium dysregulation, impaired differentiation, and a dramatic decrease in infectivity. Our work provides mechanistic insights into components supporting pathogen adaptation inside the host, thus opening the exploration of mechanosensation as a prerequisite for protozoan infectivity.
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Affiliation(s)
- Noopur Dave
- Department of Biological Science, College of Natural Sciences and Mathematics, California State University Fullerton, Fullerton, United States
| | - Ugur Cetiner
- Department of Biology, University of Maryland, College Park, United States
| | - Daniel Arroyo
- Department of Biological Science, College of Natural Sciences and Mathematics, California State University Fullerton, Fullerton, United States
| | - Joshua Fonbuena
- Department of Biological Science, College of Natural Sciences and Mathematics, California State University Fullerton, Fullerton, United States
| | - Megna Tiwari
- Department of Biological Science, College of Natural Sciences and Mathematics, California State University Fullerton, Fullerton, United States
| | - Patricia Barrera
- Departmento de Biología, Facultad de Ciencias Exactas y Naturales, Instituto de Histologia y Embriologia IHEM-CONICET, Facultad de Medicina, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Noelia Lander
- Department of Biological Sciences, University of Cincinnati, Cincinnati, United States
| | - Andriy Anishkin
- Department of Biology, University of Maryland, College Park, United States
| | - Sergei Sukharev
- Department of Biology, University of Maryland, College Park, United States
| | - Veronica Jimenez
- Department of Biological Science, College of Natural Sciences and Mathematics, California State University Fullerton, Fullerton, United States
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Schofield CL, Rodrigo-Navarro A, Dalby MJ, Van Agtmael T, Salmeron-Sanchez M. Biochemical‐ and Biophysical‐Induced Barriergenesis in the Blood–Brain Barrier: A Review of Barriergenic Factors for Use in In Vitro Models. Adv NanoBio Res 2021. [DOI: 10.1002/anbr.202000068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
| | | | - Matthew J. Dalby
- Centre for the Cellular Microenvironment University of Glasgow Glasgow UK
| | - Tom Van Agtmael
- Institute of Cardiovascular and Medical Sciences University of Glasgow Glasgow UK
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Yang Z, Wang M, Zeng X, Wan ATY, Tsui SKW. In silico analysis of proteins and microRNAs related to human African trypanosomiasis in tsetse fly. Comput Biol Chem 2020; 88:107347. [PMID: 32745971 DOI: 10.1016/j.compbiolchem.2020.107347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 05/05/2019] [Revised: 04/10/2020] [Accepted: 07/22/2020] [Indexed: 12/21/2022]
Abstract
Human African trypanosomiasis (HAT), also known as sleeping sickness, causes millions of deaths worldwide. HAT is primarily transmitted by the vector tsetse fly (Glossina morsitans). Early diagnosis remains a key objective for treating this disease. MicroRNAs (miRNAs) are evolutionarily conserved small non-coding RNAs that play key roles in vector-borne diseases. To date, the roles of proteins and miRNAs in HAT disease have not been thoroughly elucidated. In this study, we have re-annotated the function of protein-coding genes and identified several miRNAs based on a series of bioinformatics tools. A batch of 81.1 % of tsetse fly proteins could be determined homology in mosquito genome, suggesting their probable similar mechanisms in vector-borne diseases. A set of 11 novel salivary proteins and 14 midgut proteins were observed in the tsetse fly, which could be applied to the development of vaccine candidates for the control of HAT disease. In addition, 35 novel miRNAs were identified, among which 10 miRNAs were found to be unique in tsetse fly. Pathway analysis of these 10 miRNAs indicated that targets of miR-15a-5p were significantly enriched in the HAT-related neurotrophin signaling pathway. Besides, topological analysis of the miRNA-gene network indicated that miR-619-5p and miR-2490-3p targeted several genes that respond to trypanosome infection, including thioester-containing protein Tep1 and heat shock protein Hsp60a. In conclusion, our work helps to elucidate the function of miRNAs in tsetse fly and establishes a foundation for further investigations into the molecular regulatory mechanisms of HAT disease.
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Affiliation(s)
- Zhiyuan Yang
- School of Artificial Intelligence, Hangzhou Dianzi University, Hangzhou, PR China; School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong.
| | - Mingqiang Wang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
| | - Xi Zeng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
| | - Angel Tsz-Yau Wan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
| | - Stephen Kwok-Wing Tsui
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
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Wang X, Xu B, Xiang M, Yang X, Liu Y, Liu X, Shen Y. Advances on fluid shear stress regulating blood-brain barrier. Microvasc Res 2019; 128:103930. [PMID: 31639383 DOI: 10.1016/j.mvr.2019.103930] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 09/18/2019] [Accepted: 09/18/2019] [Indexed: 02/05/2023]
Abstract
The integrity of structure and function of blood-brain barrier (BBB) plays a central role in maintaining the homeostasis of the central nervous system. Patients with severe cerebrovascular stenosis often undergo cerebrovascular bypass surgery. However, the sharply increased fluid shear stress (FSS) after cerebrovascular bypass disrupts the physiological function of brain microvascular endothelial cells (BMECs) at the lesion site, damaging BBB and inducing intracerebral hemorrhage eventually. At present, there are great interests in cerebral vascular flow regulating the structure and function of BBB under physiological and pathological conditions, and most of studies have highlighted the importance of BMECs in BBB. Understanding of how FSS regulating BBB can promote the development of new protective and restorative cerebral vascular interventional therapy.
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Affiliation(s)
- Xiaoli Wang
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Bowen Xu
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Mengya Xiang
- West China School of Medicine, Sichuan University, Chengdu 610041, China
| | - Xinyue Yang
- West China School of Medicine, Sichuan University, Chengdu 610041, China
| | - Yi Liu
- Department of Neurosurgery, West China Hospital, Chengdu 610041, China
| | - Xiaoheng Liu
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China.
| | - Yang Shen
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China.
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Kaisar MA, Sajja RK, Prasad S, Abhyankar VV, Liles T, Cucullo L. New experimental models of the blood-brain barrier for CNS drug discovery. Expert Opin Drug Discov 2016; 12:89-103. [PMID: 27782770 DOI: 10.1080/17460441.2017.1253676] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The blood-brain barrier (BBB) is a dynamic biological interface which actively controls the passage of substances between the blood and the central nervous system (CNS). From a biological and functional standpoint, the BBB plays a crucial role in maintaining brain homeostasis inasmuch that deterioration of BBB functions are prodromal to many CNS disorders. Conversely, the BBB hinders the delivery of drugs targeting the brain to treat a variety of neurological diseases. Area covered: This article reviews recent technological improvements and innovation in the field of BBB modeling including static and dynamic cell-based platforms, microfluidic systems and the use of stem cells and 3D printing technologies. Additionally, the authors laid out a roadmap for the integration of microfluidics and stem cell biology as a holistic approach for the development of novel in vitro BBB platforms. Expert opinion: Development of effective CNS drugs has been hindered by the lack of reliable strategies to mimic the BBB and cerebrovascular impairments in vitro. Technological advancements in BBB modeling have fostered the development of highly integrative and quasi- physiological in vitro platforms to support the process of drug discovery. These advanced in vitro tools are likely to further current understanding of the cerebrovascular modulatory mechanisms.
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Affiliation(s)
- Mohammad A Kaisar
- a Department of Pharmaceutical Sciences , Texas Tech University Health Sciences Center , Amarillo , TX , USA
| | - Ravi K Sajja
- a Department of Pharmaceutical Sciences , Texas Tech University Health Sciences Center , Amarillo , TX , USA
| | - Shikha Prasad
- a Department of Pharmaceutical Sciences , Texas Tech University Health Sciences Center , Amarillo , TX , USA
| | - Vinay V Abhyankar
- c Biological Microsystems Division at The University of Texas at Arlington Research Institute , Fort Worth , TX , USA
| | - Taylor Liles
- a Department of Pharmaceutical Sciences , Texas Tech University Health Sciences Center , Amarillo , TX , USA
| | - Luca Cucullo
- a Department of Pharmaceutical Sciences , Texas Tech University Health Sciences Center , Amarillo , TX , USA.,b Center for Blood Brain Barrier Research , Texas Tech University Health Sciences Center , Amarillo , TX , USA
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