Injury affects coelomic fluid proteome of the common starfish, Asterias rubens

Echinoderms, possessing outstanding regenerative capabilities, provide a unique model system for the study of response to injury. However, little is known about the proteomic composition of coelomic fluid, an important biofluid circulating throughout the animal's body and reflecting the overall...

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Bibliographic Details
Published in:Journal of experimental biology Vol. 222; no. Pt 6
Main Authors: Shabelnikov, Sergey V, Bobkov, Danila E, Sharlaimova, Natalia S, Petukhova, Olga A
Format: Journal Article
Language:English
Published: England 21.03.2019
Subjects:
Animals
Asterias - physiology
Proteome - physiology
Injury response
Biofluid
Echinoderms
Wound
HPLC
LC-MALDI
ISSN:1477-9145, 1477-9145
Online Access:Get more information
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Summary:Echinoderms, possessing outstanding regenerative capabilities, provide a unique model system for the study of response to injury. However, little is known about the proteomic composition of coelomic fluid, an important biofluid circulating throughout the animal's body and reflecting the overall biological status of the organism. In this study, we used LC-MALDI tandem mass spectrometry to characterize the proteome of the cell-free coelomic fluid of the starfish and to follow the changes occurring in response to puncture wound and blood loss. In total, 91 proteins were identified, of which 61 were extracellular soluble and 16 were bound to the plasma membrane. The most represented functional terms were 'pattern recognition receptor activity' and 'peptidase inhibitor activity'. A series of candidate proteins involved in early response to injury was revealed. Ependymin, β-microseminoprotein, serum amyloid A and avidin-like proteins, which are known to be involved in intestinal regeneration in the sea cucumber, were also identified as injury-responsive proteins. Our results expand the list of proteins potentially involved in defense and regeneration in echinoderms and demonstrate dramatic effects of injury on the coelomic fluid proteome.
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ISSN:1477-9145
1477-9145
DOI:10.1242/jeb.198556