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Production of Monoclonal Antibodies against Human Trefoil Factor 3 and Development of a Modified-Sandwich ELISA for Detection of Trefoil Factor 3 Homodimer in Saliva.
Biological Procedures Online ( IF 6.4 ) Pub Date : 2017-11-08 , DOI: 10.1186/s12575-017-0064-3
Saichit Khummuang 1, 2 , Waraporn Phanphrom 3 , Witida Laopajon 1, 2 , Watchara Kasinrerk 1, 2 , Ponlatham Chaiyarit 3, 4 , Supansa Pata 1, 2
Affiliation  

BACKGROUND Human trefoil factor (TFF) peptides consist of three members: TFF1, TFF2 and TFF3. TFF3 is the most abundant TFF peptide in saliva. TFF3 homodimer was suggested to be involved in apoptosis inhibition and malignancy. Determination of TFF3 homodimer expression profiles in saliva may lead to new information about oral biology and diseases. The objective of this study was to generate monoclonal antibodies (mAbs) against TFF3 and apply the produced mAbs for the establishment of ELISA for quantification of dimeric TFF3 in saliva. RESULTS With our modified hybridoma technique, three hybridoma clones producing anti-TFF3 mAbs having IgG isotype were generated. The mAbs were specific for TFF3 with no cross-reactivity to other TFFs. Using the generated mAbs, a modified-sandwich ELISA with high sensitivity for the quantification of dimeric TFF3 in saliva was developed. Using this ELISA, the amount of dimeric TFF3 in saliva could be measured. CONCLUSIONS A modified-sandwich ELISA for the quantification of TFF3 dimeric form was established. The established ELISA will be a valuable tool for facilitating the investigation of the physiological roles and the diagnostic values of TFF3 in oral diseases. The concept of this modified-sandwich ELISA may be applied for the determination of other homodimeric peptides of interest.

中文翻译:

人三叶因子 3 单克隆抗体的生产和改进夹心 ELISA 的开发,用于检测唾液中的三叶因子 3 同二聚体。

背景技术人三叶因子(TFF)肽由三个成员组成:TFF1、TFF2和TFF3。TFF3 是唾液中含量最多的 TFF 肽。TFF3 同型二聚体被认为与细胞凋亡抑制和恶性肿瘤有关。唾液中 TFF3 同源二聚体表达谱的测定可能会导致有关口腔生物学和疾病的新信息。本研究的目的是产生针对 TFF3 的单克隆抗体 (mAb),并将产生的 mAb 用于建立 ELISA 以定量唾液中的二聚体 TFF3。结果使用我们改进的杂交瘤技术,产生了三个产生具有IgG同种型的抗TFF3 mAb的杂交瘤克隆。mAb 对 TFF3 具有特异性,与其他 TFF 没有交叉反应性。使用生成的 mAb,开发了一种改良的夹心 ELISA,对唾液中二聚体 TFF3 的定量具有高灵敏度。使用这种 ELISA,可以测量唾液中二聚体 TFF3 的量。结论 建立了用于定量 TFF3 二聚体形式的改良夹心 ELISA。已建立的 ELISA 将成为促进研究 TFF3 在口腔疾病中的生理作用和诊断价值的宝贵工具。这种改良夹心 ELISA 的概念可用于测定其他感兴趣的同源二聚体肽。已建立的 ELISA 将成为促进研究 TFF3 在口腔疾病中的生理作用和诊断价值的宝贵工具。这种改良夹心 ELISA 的概念可用于测定其他感兴趣的同源二聚体肽。已建立的 ELISA 将成为促进研究 TFF3 在口腔疾病中的生理作用和诊断价值的宝贵工具。这种改良夹心 ELISA 的概念可用于测定其他感兴趣的同源二聚体肽。
更新日期:2019-11-01
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