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Biosci Rep. 2018 Oct 17;38(5). pii: BSR20181113. doi: 10.1042/BSR20181113. Print 2018 Oct 31.

Biopanning of allergens from wasp sting patients.

Author information

1
Emergency Department, Taihe Hospital, Shiyan 442000, China.
2
Department of Pediatrics, Shiyan Maternal and Child Health-Care Hospital, Shiyan 442000, China.
3
Department of Pediatrics, Taihe Hospital, Shiyan 442000, China.
4
Emergency Department, Taihe Hospital, Shiyan 442000, China xiaominthyy@163.com 13593751009@163.com.

Abstract

OBJECTIVE:

Wasp venom is a potentially important natural drug, but it can cause hypersensitivity reactions. The purpose of the present study was to systematically study the epitopes of wasp venom.

METHODS:

Using a random 12-peptide phage library, we performed antibody-binding epitope panning on ten serum samples from wasp sting victims at 3 h and 4 days after the sting. The panning epitopes were identified by high-throughput sequencing and matched with wasp venom proteins by BLAST. The panned antibody-binding epitopes were verified by ELISA.

RESULTS:

A total of 35 specific potential wasp venom epitopes in 4 days were identified. Amongst them, twelve peptide epitopes were matched with nine wasp venom proteins, namely, vitellogenin precursor, hexamerin 70b precursor, venom carboxylesterase-6 precursor, MRJP5, major royal jelly protein 8 precursor, venom acid phosphatase Acph-1 precursor, phospholipase A2, venom serine protease 34 precursor, and major royal jelly protein 9 precursor. The changes in serum IgM antibodies induced by wasp venom were confirmed by ELISA based on the 12 peptide epitopes.

CONCLUSION:

The nine wasp venom proteins are potential allergens, which should be excluded or modified in the potential biomedical applications of wasp venom.

KEYWORDS:

allergens; peptide; wasp venom

PMID:
30249752
PMCID:
PMC6200702
DOI:
10.1042/BSR20181113
[Indexed for MEDLINE]
Free PMC Article

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