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Yu-bao,Cui; Zhou,Ying; Weihong,Shi; Guifang,Ma; Yang,Li; Yungang,Wang. |
To obtain the recombinant group 2 allergen product of Dermatophagoides farinae (Der f 2), the Der f 2 gene was synthesized by RT-PCR. The full-length cDNA comprised 441 nucleotides and was 99.3% identical to the reference sequence (GenBank AB195580). The cDNA was bound to vector pET28a to construct plasmid pET28a(+)-Der f 2, which was transformed into E. coli BL21 and induced by IPTG. SDS-PAGE showed a specific band of about 14kDa in the hole cell lysate. s estiated by chroatography, about 3.86 g of the recobinant product as obtained, which conjugated with serum IgE from asthmatic children. The protein had a signal peptide of 17 amino acids. Its secondary structure comprised an alpha helix (19.86%), an extended strand (30.82%), and a random coil (49.32%).... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dermatophagoides farinae; House-dust-mite allergy; Mite allergens; Der f 2; Allergen engineering; Immunotherapy; Bioinformatics. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000400017 |
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Cui,Yubao; Zhou,Ying; Ma,Guifang; Yang,Li; Wang,Yungang; Shi,Weihong. |
Crude extracts of house dust mites are used clinically for diagnosis and immunotherapy of allergic diseases, including bronchial asthma, perennial rhinitis, and atopic dermatitis. However, crude extracts are complexes with non-allergenic antigens and lack effective concentrations of important allergens, resulting in several side effects. Dermatophagoides farinae (Hughes; Acari: Pyroglyphidae) is one of the predominant sources of dust mite allergens, which has more than 30 groups of allergen. The cDNA coding for the group 5 allergen of D. farinae from China was cloned, sequenced and expressed. According to alignment using the VECTOR NTI 9.0 software, there were eight mismatched nucleotides in five cDNA clones resulting in seven incompatible amino acid... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dermatophagoides farinae (Hughes); Der f 5; Cloning; Expression; Bioinformatics. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000800009 |
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Zhou,Ying; Wu,Meili; Zhu,Hanting; Shao,Junjie; Liu,Chang; Cui,Yubao. |
Abstract Long noncoding RNAs (lncRNAs), especially their important subclass of long intergenic noncoding RNAs (lincRNAs), have been identified in some insects. They play important roles in the regulation of biological processes, such as immune response or cell differentiation and as possible evolutionary precursors for protein coding genes. House dust mites (HDMs) are recognized as allergenic mites because allergens are found in their feces and bodies. Dermatophagoides farinae is one of the most important pyroglyphid mites because of its abundance in the household. To determine if lincRNAs can regulate allergen presentation in HDMs, we analyzed RNA-seq data for HDMs. We identified 11 lincRNAs that are related to mRNAs coding for allergens in HDMs. Using... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: House dust mites (HDMs); Dermatophagoides farinae; Long noncoding RNAs (lncRNAs); Allergen; RNA-seq. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100804 |
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Zhou,Ying; Cui,Lu; Yuan,Huairui; Xiao,Ke; Khan,Faheem Ahmed; Guo,Liang; Yang,Zhi; Song,Hui. |
This study investigated the effects of visfatin on the structure and the immunity levels in the small intestine of LPS-induced rats. Forty Wistar male and female SPF rats were randomly and equally divided into four groups: the saline (control), vistfatin, lipopolysaccharide (LPS), and visfatin+LPS co-stimulated. The functions of visfatin in the intestinal mucosal immunity were investigated by examining the variation of tissue structure, inflammation and immunity-related proteins in the intestine of immunologically stressed rats using HE staining, ELISA, immunohistochemistry and Western Blot. The results showed that, when compared with the control group, the visfatin-treated group showed a decrease in the intestinal villus height and width, and a... |
Tipo: Journal article |
Palavras-chave: Visfatin; Intestinal mucosa; LPSinduced rats; IgA; Inflammatory factor. |
Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000400051 |
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