The CLIP-domain serine protease homolog SPCLIP1 regulates complement recruitment to microbial surfaces in the malaria mosquito Anopheles gambiae.

The complement C3-like protein TEP1 of the mosquito Anopheles gambiae is required for defense against malaria parasites and bacteria. Two forms of TEP1 are present in the mosquito hemolymph, the full-length TEP1-F and the proteolytically processed TEP1(cut) that is part of a complex including the le...

Full description

Bibliographic Details
Main Authors: Michael Povelones, Lavanya Bhagavatula, Hassan Yassine, Lee Aun Tan, Leanna M Upton, Mike A Osta, George K Christophides
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS Pathogens
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24039584/pdf/?tool=EBI
_version_ 1818403976161263616
author Michael Povelones
Lavanya Bhagavatula
Hassan Yassine
Lee Aun Tan
Leanna M Upton
Mike A Osta
George K Christophides
author_facet Michael Povelones
Lavanya Bhagavatula
Hassan Yassine
Lee Aun Tan
Leanna M Upton
Mike A Osta
George K Christophides
author_sort Michael Povelones
collection DOAJ
description The complement C3-like protein TEP1 of the mosquito Anopheles gambiae is required for defense against malaria parasites and bacteria. Two forms of TEP1 are present in the mosquito hemolymph, the full-length TEP1-F and the proteolytically processed TEP1(cut) that is part of a complex including the leucine-rich repeat proteins LRIM1 and APL1C. Here we show that the non-catalytic serine protease SPCLIP1 is a key regulator of the complement-like pathway. SPCLIP1 is required for accumulation of TEP1 on microbial surfaces, a reaction that leads to lysis of malaria parasites or triggers activation of a cascade culminating with melanization of malaria parasites and bacteria. We also demonstrate that the two forms of TEP1 have distinct roles in the complement-like pathway and provide the first evidence for a complement convertase-like cascade in insects analogous to that in vertebrates. Our findings establish that core principles of complement activation are conserved throughout the evolution of animals.
first_indexed 2024-12-14T08:32:48Z
format Article
id doaj.art-8167feeb5f9f4491bd0f7b6d02590f1f
institution Directory Open Access Journal
issn 1553-7366
1553-7374
language English
last_indexed 2024-12-14T08:32:48Z
publishDate 2013-01-01
publisher Public Library of Science (PLoS)
record_format Article
series PLoS Pathogens
spelling doaj.art-8167feeb5f9f4491bd0f7b6d02590f1f2022-12-21T23:09:29ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742013-01-0199e100362310.1371/journal.ppat.1003623The CLIP-domain serine protease homolog SPCLIP1 regulates complement recruitment to microbial surfaces in the malaria mosquito Anopheles gambiae.Michael PovelonesLavanya BhagavatulaHassan YassineLee Aun TanLeanna M UptonMike A OstaGeorge K ChristophidesThe complement C3-like protein TEP1 of the mosquito Anopheles gambiae is required for defense against malaria parasites and bacteria. Two forms of TEP1 are present in the mosquito hemolymph, the full-length TEP1-F and the proteolytically processed TEP1(cut) that is part of a complex including the leucine-rich repeat proteins LRIM1 and APL1C. Here we show that the non-catalytic serine protease SPCLIP1 is a key regulator of the complement-like pathway. SPCLIP1 is required for accumulation of TEP1 on microbial surfaces, a reaction that leads to lysis of malaria parasites or triggers activation of a cascade culminating with melanization of malaria parasites and bacteria. We also demonstrate that the two forms of TEP1 have distinct roles in the complement-like pathway and provide the first evidence for a complement convertase-like cascade in insects analogous to that in vertebrates. Our findings establish that core principles of complement activation are conserved throughout the evolution of animals.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24039584/pdf/?tool=EBI
spellingShingle Michael Povelones
Lavanya Bhagavatula
Hassan Yassine
Lee Aun Tan
Leanna M Upton
Mike A Osta
George K Christophides
The CLIP-domain serine protease homolog SPCLIP1 regulates complement recruitment to microbial surfaces in the malaria mosquito Anopheles gambiae.
PLoS Pathogens
title The CLIP-domain serine protease homolog SPCLIP1 regulates complement recruitment to microbial surfaces in the malaria mosquito Anopheles gambiae.
title_full The CLIP-domain serine protease homolog SPCLIP1 regulates complement recruitment to microbial surfaces in the malaria mosquito Anopheles gambiae.
title_fullStr The CLIP-domain serine protease homolog SPCLIP1 regulates complement recruitment to microbial surfaces in the malaria mosquito Anopheles gambiae.
title_full_unstemmed The CLIP-domain serine protease homolog SPCLIP1 regulates complement recruitment to microbial surfaces in the malaria mosquito Anopheles gambiae.
title_short The CLIP-domain serine protease homolog SPCLIP1 regulates complement recruitment to microbial surfaces in the malaria mosquito Anopheles gambiae.
title_sort clip domain serine protease homolog spclip1 regulates complement recruitment to microbial surfaces in the malaria mosquito anopheles gambiae
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24039584/pdf/?tool=EBI
work_keys_str_mv AT michaelpovelones theclipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT lavanyabhagavatula theclipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT hassanyassine theclipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT leeauntan theclipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT leannamupton theclipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT mikeaosta theclipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT georgekchristophides theclipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT michaelpovelones clipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT lavanyabhagavatula clipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT hassanyassine clipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT leeauntan clipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT leannamupton clipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT mikeaosta clipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae
AT georgekchristophides clipdomainserineproteasehomologspclip1regulatescomplementrecruitmenttomicrobialsurfacesinthemalariamosquitoanophelesgambiae