ING4 and OSM double-gene co-expression vector and application thereof
A technology of genes and vectors, applied in the field of adenovirus vectors, can solve the problem of co-expression plasmid vectors and adenovirus vectors of ING4 and OSM double genes, and achieve the effect of down-regulating expression
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Embodiment 1
[0065] Example 1: Construction and detection of gene recombinant adenovirus vector
[0066] Materials: Bgl II, Sal I, Not I, Hind III restriction enzymes, T4 DNA ligase, Taq DNA polymerase, dNTPmix Oligo d(T) 18 , DL2000marker, Ribonuclease Inhibitor were purchased from TaKaRa Company; Reverse Transcriptase MMLV, Lambda DNA / HindIII marker were purchased from MBI Company; PmeI, PacI were purchased from New England Biolads Company; daily miniature plasmid extraction kit, PCR product cleaning kit, DNA gel recovery kit was purchased from Hangzhou Weitejie Biochemical Technology Co., Ltd.; pAdTrack-CMV-ING4-IRES-hOSM plasmid, pAdTrack-CMV-poly-A-promoter plasmid, QBI-293A packaging cells, pAdTrack-CMV-polyA +promoter -OSM plasmid, pAdEasy-1 backbone plasmid, Escherichia coli DH5α, BJ5183 bacteria, empty vector adenovirus Ad-GFP, etc. are all preserved in our laboratory; primers: β-actin, ING4, OSM gene primers (as shown in Table 1) Synthesized by Shanghai Sangon; RPMI-1640 was pur...
Embodiment 2
[0102] Example 2: Experimental research on the growth inhibitory effect of Ad-ING4-OSM on human laryngeal cancer Hep-2 cells;
[0103] Reagents: constructed Ad-ING4, Ad-OSM, Ad-ING4-OSM and empty viral vector Ad-GFP, RPMI-1640 medium was purchased from GIBCO; 6-well, 24-well and 96-well cell culture plates were purchased from CORNING Company; MTT was purchased from Sigma Company of the United States; newborn calf serum was purchased from Hangzhou Saile Biotechnology Company; Trizol kit was purchased from Invitrogen Company; MMLV reverse transcriptase, TaqDNA polymerase, dNTPmix, Oligo(dT) 18 , DNA marker were purchased from TaKaRa; β-actin antibody was purchased from Beyontien Institute of Biotechnology; mouse anti-human ING4 and mouse anti-human OSM antibodies were purchased from abcam; nitrocellulose membrane (NC membrane), Western blot chemiluminescence Kits and cassettes were purchased from Shanghai Pulilai Gene Technology Co., Ltd.; HRP-labeled rabbit anti-mouse IgG secon...
Embodiment 3
[0151] Example 3: Experimental research on the growth inhibitory effect of Ad-ING4-OSM on human laryngeal carcinoma xenografts in nude mice
[0152] Reagents and experimental animals: Ad-GFP, Ad-ING4, Ad-OSM and Ad-ING4-OSM adenovirus vectors; RPMI-1640 medium was purchased from GIBCO; calf serum was purchased from Hangzhou Sijiqing Company; adenovirus amplification Cell QBI-293A was donated by Professor Zhong Jiang from the Department of Microbiology, School of Life Sciences, Fudan University; human laryngeal carcinoma Hep-2 cells were preserved in this laboratory; 96-well cell culture plates were purchased from CORNING Company; BALB / c nude mice, female, 4- 5 weeks old, 18-22 g were purchased from Shanghai Slack Experimental Animal Co., Ltd.; ING4, OSM, P21, P27, Cox-2, Bcl-2, Survivin, Bax, Caspase-3, CD34 antibodies were purchased from Fuzhou Maixin Biotechnology Company; ready-to-use immunohistochemical ultrasensitive UltraSensitiveTM SP kit (mouse / rabbit) was purchased ...
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