Controllable up-regulation of ang-(1-7) expression vector for targeted prevention and treatment of hypoxic pulmonary hypertension
A technology for expressing vectors and promoters, applied in the direction of polypeptides, vectors, and nucleic acid vectors containing positioning/targeting motifs, which can solve the problems of lack of specificity in administration routes, lower blood pressure in the systemic circulation, and aggravate hypoxemia, etc. Achieve good application prospects, inhibit structural reconstruction, and improve tissue specificity
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[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0039] 1. Construction, identification and sequencing verification of recombinant plasmid HRE-Tie2-FC-Ang-(1-7)
[0040] Whole gene synthesis 6×HRE sequence (rat HRE: 5'GACTCCACAGTGCATACGTGGGCTTCCACAGGTCGTCTC3') and Tie gene (Tyrosine kinase with Id EGF homology domains) promoter (Mus musculus receptor tyrosine kinase Tie2 gene, 5'-flanking region, accessnumber r AF022456.1, location: AF022456.1:1–223, referred to as Tie2 promoter). At the same time, synthetic signal peptide and hIgG1Fc fusion marker (SPFc: 5'ATGAAACATCTGTGGTTCTTCCTTCTCCTGGTGGCAGCTCCCAGATGGGTCCTGTCC3', signal peptide and fusion marker are fused in a sequence, the sequence has two corresponding functions) and rat Ang-(1-7) coding sequence (5'GACCGGGTGTACATACACCCC3'), and clone the above sequence into pUC57 (Shenzhen Baienwei Biotechnology Co., Ltd.) to obtain the template plas...
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