Skip to main content
Log in

Comparative splenic proteomic analysis of susceptible and resistant GIFT tilapia following challenge with Streptococcus agalactiae

  • Published:
Aquaculture International Aims and scope Submit manuscript

Abstract

Nile tilapia is an important economically farmed fish worldwide, and Streptococcus agalactiae has become the most serious disease problem for the tilapia industry in China. Therefore, a better understanding of the innate immune mechanisms and their functions in the context of pathogen invasion is needed. In this study, a high-throughput proteomic strategy was developed for determining the differential expression proteins (DEPs) of the genetically improved farmed tilapia (GIFT) (susceptible and resistant GIFT species) splenic responses to S. agalactiae infection. The results showed 1608 proteins were identified with high confidence (P < 0.05). A total of 441 and 382 DEPs were characterized in susceptible and resistant GIFT tilapia species, respectively. Gene ontology (GO) annotation showed that the DEPs covered many biological functions, including cellular process, metabolism, and immune process. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that the DEPs were mainly enriched in the lysosome, apoptosis, and complement and coagulation cascade pathways during S. agalactiae infection. By group comparisons, the proteins related to immune response, cytoskeleton, and energy metabolism of disease-resistant strains were upregulated compared with those of susceptible strain. The content determination of immune-related enzyme activity was consistent with the results obtained throughout the study. More active innate immune system and cell defense is the basis of S. agalactiae resistance for disease-resistant GIFT tilapia species. Furthermore, 34 proteins involved in disease resistance were characterized. Therefore, the present study contributes to a better understanding of the immune system and defense mechanisms of GIFT tilapia in response to S. agalactiae infection and provides valuable recommendations for breeding disease-resistant GIFT tilapia species.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

Abbreviations

DEPs:

differential expression proteins

GO:

gene ontology

KEGG:

kyoto encyclopedia of genes and genomes

GIFT:

genetically improved farmed tilapia

SOD:

superoxide dismutase

CXCL12:

C-X-C motif chemokine ligand 12

MFAP4:

microfibril-associated glycoprotein 4

NCCRP-1:

non-specific cytotoxic cell receptor protein 1

SHP1:

Src homology 2 domain-containing protein tyrosine phosphatase 1

C2CD2:

C2 domain-containing protein 2

LIM3:

LIM domain protein-3

EML1:

echinoderm microtubule-associated protein-like 1

IFN-γ:

interferon-gamma

IL-1β:

interleukin-1 beta

MudPIT:

multidimensional protein identification technology

iTRAQ:

isobaric tags for relative and absolute quantitation

CHAPS:

3-((3-cholamidopropyl)dimethylammonium)-1-propanesulfonate

DTT:

dithiothreitol

TEAB:

tetraethylammonium bromide

FASP:

filter aided proteome preparation

hp-RPLC:

high-pH reverse-phase liquid chromatography

CID:

collision-induced dissociation

SD:

standard deviation

PSMs:

peptide spectrum matches

CK:

control

LZM:

lysozymes

T-AOC:

total antioxidant capacity

PRRs:

pathogen recognition receptors

PAMPs:

pathogen-associated molecular patterns

TLRs:

Toll-like receptors

MHC:

major histocompatibility complex

ISAV:

infectious salmon anemia virus

References

Download references

Acknowledgements

We would like to thank the Core Facility Center of SKLCUSA for mass spectrometry support.

Funding

This study was supported by the National Key R&D Program of China (2018YFD0900302-5), Guangxi Nature Fund program (2018JJA130220), and Major Science and Technology projects in Guangxi (AA17204080-2).

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to Qiang Fu or Hesheng Jiang.

Ethics declarations

Conflict of interest

The authors declare no competing interests.

Additional information

Handling Editor: Brian Austin

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Table S1

A complete proteome list with protein names and accession numbers in disease-resistant and susceptible GIFT strains. (XLSX 821 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhu, J., Yu, K., Ao, Q. et al. Comparative splenic proteomic analysis of susceptible and resistant GIFT tilapia following challenge with Streptococcus agalactiae. Aquacult Int 29, 1141–1159 (2021). https://doi.org/10.1007/s10499-021-00683-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10499-021-00683-9

Keywords

Navigation