title: Expression of Hsp70 reveals significant differences between fin regeneration and inflammation in Paramisgurnus dabryanus.
abstract: Hsp70 is the most strongly induced in response to various cellular stresses and a good candidate for investigating its role in tissue injury. We firstly cloned full-length cDNA of hsp70 from Paramisgurnus dabryanus (PdHsp70) by RACE method (GenBank: KP402408.1). Then regeneration and inflammation of fin were established by amputation and scratch respectively. Quantitative RT-PCR detected the PdHsp70 began to increase rapidly its expression at 1 days post amputation (dpa) and reached the peak at 2 dpa during fin regeneration. Its expression was also up-regulated at 2 days post scratch (dps) of inflammation but still significant weaker in comparison with it in regenerated fin at 2 dpa. Next, immunohistochemistry analysis of PdHsp70 showed that PdHsp70 located mainly in the deeper epidermis of regenerated fin and was stronger than its expression in the scratched inflammatory fin which was involved in whole epidermal. SDS-PAGE and Western blotting confirmed that the PdHsp70 protein expressed efficiently in Escherichia coli BL21. These findings have implied that PdHsp70 are implicated in different regulation of regeneration and inflammation in response to injury stimulation. During the regeneration, it is involved in the formation of wound epidermis by mediating cellular protection whereas it can modulate inflammatory by activating the innate immune response.
authors.affiliation: Molecular and Genetic Laboratory, College of Life Science Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China. Electronic address: lizzie406@163.com.
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.affiliation: Molecular and Genetic Laboratory, College of Life Science Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China. Electronic address: 184414282@qq.com.
authors.forename: Linlin
authors.initials: L
authors.lastname: Wang
authors.affiliation: Molecular and Genetic Laboratory, College of Life Science Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China. Electronic address: 2434336881@qq.com.
authors.forename: Jingya
authors.initials: J
authors.lastname: He
authors.affiliation: Molecular and Genetic Laboratory, College of Life Science Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China. Electronic address: 041049@htu.edu.cn.
authors.forename: Zhongjie
authors.initials: Z
authors.lastname: Chang
mesh_terms: D000595:Amino Acid Sequence; D058500:Animal Fins / Q000502:physiology*; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D003531:Cypriniformes; D018076:DNA, Complementary / Q000235:genetics / Q000378:metabolism; D005393:Fish Diseases / Q000235:genetics* / Q000276:immunology; D029941:Fish Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D018840:HSP70 Heat-Shock Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D007249:Inflammation / Q000235:genetics / Q000276:immunology / Q000662:veterinary*; D012038:Regeneration
chemical_list: D018076:DNA, Complementary; D029941:Fish Proteins; D018840:HSP70 Heat-Shock Proteins
keywords: Hsp70; Inflammatory; Injury stimulation; Paramisgurnus dabryanus; Regeneration