Peritrophic matrix formation and Brugia malayi microfilaria invasion of the midgut of a susceptible vector, Ochlerotatus togoi (Diptera: Culicidae)

The mosquito midgut is the first site that vector-borne pathogens contact during their multiplication, differentiation, or migration from blood meal to other tissues before transmission. After blood feeding, the mosquitoes synthesize a chitinous structure called peritrophic matrix (PM) that envelops...

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Main Authors: Narissara Jariyapan, Atiporn Saeung, Nuchpicha Intakhan, Wetpisit Chanmol, Sriwatapron Sor-Suwan, Benjarat Phattanawiboon, Kritsana Taai, Wej Choochote
Format: Journal
Published: 2018
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84879553337&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/47828
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-478282018-04-25T08:44:27Z Peritrophic matrix formation and Brugia malayi microfilaria invasion of the midgut of a susceptible vector, Ochlerotatus togoi (Diptera: Culicidae) Narissara Jariyapan Atiporn Saeung Nuchpicha Intakhan Wetpisit Chanmol Sriwatapron Sor-Suwan Benjarat Phattanawiboon Kritsana Taai Wej Choochote The mosquito midgut is the first site that vector-borne pathogens contact during their multiplication, differentiation, or migration from blood meal to other tissues before transmission. After blood feeding, the mosquitoes synthesize a chitinous structure called peritrophic matrix (PM) that envelops the blood meal and separates the food bolus from the midgut epithelium. In this study, a systematic investigation of the PM formation and the interaction of Brugia malayi within the midgut of a susceptible vector, Ochlerotatus togoi, were performed using scanning electron microscopy (SEM). SEM analysis of the midguts dissected at different time points post feeding on a B. malayi-infected blood meal (PIBM) revealed that the PM was formed from 45 min PIBM and gradually thickened and matured during 8-18 h PIBM. The PM degraded from 24 to72 h PIBM, when digestion was completed. The invasion process of the microfilariae was observed between 3 and 4 h PIBM. In the beginning of the process, only sheathed microfilariae interacted with the internal face of the PM by its anterior part, and then the midgut epithelium before entering the hemocoel, after that they exsheathed. Microfilarial sheaths lying within the hemocoel were observed suggesting that they may serve as a decoy to induce the immune systems of the mosquitoes to respond to the antigens on the sheaths, thereby protecting the exsheathed microfilariae. These initial findings would lead to further study on the proteins, chemicals, and factors in the midgut that are involved in the susceptibility of O. togoi as a vector of filariasis. © 2013 Springer-Verlag Berlin Heidelberg. 2018-04-25T08:44:27Z 2018-04-25T08:44:27Z 2013-07-01 Journal 14321955 09320113 2-s2.0-84879553337 10.1007/s00436-013-3404-5 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84879553337&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/47828
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description The mosquito midgut is the first site that vector-borne pathogens contact during their multiplication, differentiation, or migration from blood meal to other tissues before transmission. After blood feeding, the mosquitoes synthesize a chitinous structure called peritrophic matrix (PM) that envelops the blood meal and separates the food bolus from the midgut epithelium. In this study, a systematic investigation of the PM formation and the interaction of Brugia malayi within the midgut of a susceptible vector, Ochlerotatus togoi, were performed using scanning electron microscopy (SEM). SEM analysis of the midguts dissected at different time points post feeding on a B. malayi-infected blood meal (PIBM) revealed that the PM was formed from 45 min PIBM and gradually thickened and matured during 8-18 h PIBM. The PM degraded from 24 to72 h PIBM, when digestion was completed. The invasion process of the microfilariae was observed between 3 and 4 h PIBM. In the beginning of the process, only sheathed microfilariae interacted with the internal face of the PM by its anterior part, and then the midgut epithelium before entering the hemocoel, after that they exsheathed. Microfilarial sheaths lying within the hemocoel were observed suggesting that they may serve as a decoy to induce the immune systems of the mosquitoes to respond to the antigens on the sheaths, thereby protecting the exsheathed microfilariae. These initial findings would lead to further study on the proteins, chemicals, and factors in the midgut that are involved in the susceptibility of O. togoi as a vector of filariasis. © 2013 Springer-Verlag Berlin Heidelberg.
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author Narissara Jariyapan
Atiporn Saeung
Nuchpicha Intakhan
Wetpisit Chanmol
Sriwatapron Sor-Suwan
Benjarat Phattanawiboon
Kritsana Taai
Wej Choochote
spellingShingle Narissara Jariyapan
Atiporn Saeung
Nuchpicha Intakhan
Wetpisit Chanmol
Sriwatapron Sor-Suwan
Benjarat Phattanawiboon
Kritsana Taai
Wej Choochote
Peritrophic matrix formation and Brugia malayi microfilaria invasion of the midgut of a susceptible vector, Ochlerotatus togoi (Diptera: Culicidae)
author_facet Narissara Jariyapan
Atiporn Saeung
Nuchpicha Intakhan
Wetpisit Chanmol
Sriwatapron Sor-Suwan
Benjarat Phattanawiboon
Kritsana Taai
Wej Choochote
author_sort Narissara Jariyapan
title Peritrophic matrix formation and Brugia malayi microfilaria invasion of the midgut of a susceptible vector, Ochlerotatus togoi (Diptera: Culicidae)
title_short Peritrophic matrix formation and Brugia malayi microfilaria invasion of the midgut of a susceptible vector, Ochlerotatus togoi (Diptera: Culicidae)
title_full Peritrophic matrix formation and Brugia malayi microfilaria invasion of the midgut of a susceptible vector, Ochlerotatus togoi (Diptera: Culicidae)
title_fullStr Peritrophic matrix formation and Brugia malayi microfilaria invasion of the midgut of a susceptible vector, Ochlerotatus togoi (Diptera: Culicidae)
title_full_unstemmed Peritrophic matrix formation and Brugia malayi microfilaria invasion of the midgut of a susceptible vector, Ochlerotatus togoi (Diptera: Culicidae)
title_sort peritrophic matrix formation and brugia malayi microfilaria invasion of the midgut of a susceptible vector, ochlerotatus togoi (diptera: culicidae)
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84879553337&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/47828
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