Application of human CFAP65 gene and related products

A gene and application technology, applied in the application of human CFAP65 gene and related products, to achieve the effect of inhibiting proliferation rate, inhibiting proliferation and inhibiting the growth of gastric cancer

Pending Publication Date: 2022-01-11
SHANGHAI GENECHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on CFAP65 in tumor-related fields

Method used

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  • Application of human CFAP65 gene and related products
  • Application of human CFAP65 gene and related products
  • Application of human CFAP65 gene and related products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] Example 1 Preparation of RNAi lentivirus for human CFAP65 gene

[0092] 1. Screening for effective siRNA targets against the human CFAP65 gene

[0093] Retrieve CFAP65 (NM_194302) gene information from Genbank; design effective siRNA targets for CFAP65 gene. Table 1-1 lists the screened effective siRNA target sequences against CFAP65 gene.

[0094] Table 1-1 siRNA target sequence targeting human CFAP65 gene

[0095] SEQ ID NO TargetSeq(5'-3') 1 CCTTGAAACTCCAGAAGAT

[0096] 2. Preparation of lentiviral vector

[0097] Aim at the siRNA target (take SEQ ID NO: 1 as an example) to synthesize a double-stranded DNA Oligo sequence (Table 1-2) with Age I and EcoR I restriction sites at both ends; Dicer acts on the pGCSIL-GFP vector (provided by Shanghai Jikai Gene Chemical Technology Co., Ltd.) to linearize it, and agarose gel electrophoresis identifies the digested fragment.

[0098] Table 1-2 Double-stranded DNA Oligo with sticky ends containing Age...

Embodiment 2

[0116] Example 2 Real-time fluorescent quantitative RT-PCR method to detect gene silencing efficiency

[0117] Human gastric cancer AGS cells in the logarithmic growth phase were digested with trypsin to make a cell suspension (the number of cells was about 5×10 4 / ml) were inoculated in a 6-well plate and cultured until the cell confluency reached about 30%. According to the multiplicity of infection (MOI, AGS: 10), an appropriate amount of the lentivirus prepared in Example 1 was added, the culture medium was replaced after 24 hours of culture, and the cells were collected after the infection time reached 5 days. Total RNA was extracted according to the instruction manual of Invitrogen's Trizol. According to the M-MLV instruction manual of Promega Company, RNA was reverse-transcribed to obtain cDNA (see Table 2-1 for the reverse transcription reaction system, react at 42°C for 1 hour, and then bathe in a water bath at 70°C for 10 minutes to inactivate the reverse transcript...

Embodiment 3

[0124] Example 3 Detection of proliferation ability of tumor cells infected with CFAP65-shRNA lentivirus

[0125] Human gastric cancer AGS cells in the logarithmic growth phase were digested with trypsin to make a cell suspension (the number of cells was about 5×10 4 / ml) were inoculated in a 6-well plate and cultured until the cell confluency reached about 30%. According to the multiplicity of infection (MOI, AGS: 10), an appropriate amount of virus was added, and the culture medium was replaced after 24 hours of culture. After the infection time reached 5 days, the cells of each experimental group in the logarithmic growth phase were collected. The complete medium was resuspended into a cell suspension (2×10 4 / ml), inoculate a 96-well plate at a cell density of about 1500 cells / well. 5 replicate wells in each group, 100 μl per well. After laying the board, place at 37°C, 5% CO 2 Incubator cultivation. From the second day after plating, the plate was detected and read o...

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PUM

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Abstract

The invention belongs to the field of biological medicine research, and particularly relates to application of a human CFAP65 gene serving as a target in preparation of gastric cancer treatment drugs or gastric cancer diagnosis drugs. Through extensive and deep researches, proliferation of gastric cancer cells can be effectively inhibited after expression of the human CFAP65 gene is down-regulated by adopting an RNAi method, and the growth process of gastric cancer can be effectively controlled. The siRNA or the nucleic acid construct containing the siRNA sequence and the lentivirus provided by the invention can specifically inhibit the proliferation rate of gastric cancer cells and inhibit the growth of the gastric cancer, so that the gastric cancer is treated, and a new direction is opened up for the treatment of the gastric cancer.

Description

technical field [0001] The invention belongs to the field of biomedical research, and specifically relates to the use of human CFAP65 gene and related products. Background technique [0002] CFAP65 is a protein-coding gene. Diseases associated with CFAP65 include failure of sperm development and non-syndromic male infertility due to impaired sperm motility. The gene may play a role in sperm motility, and the protein encoded by the gene may be a transmembrane protein with a putative coiled-coil domain. The ortholog of this gene is involved in the Rose-comb mutation, a large chromosomal inversion that results in altered comb morphology and defects in sperm motility (Wang W, et al. Biallelic mutations in CFAP65 lead to severe asthenoteratospermia due to acrosome hypoplasia and flagellum malformations. J Med Genet. 2019. PMID: 31501240). Human mitochondrial transcription factor A (TFAM) has been implicated in promoting tumor growth and invasion. TFAM activates mitochondrial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N15/113C12N15/867C12Q1/6886A61K45/00A61K31/713A61P35/00
CPCC12N15/113C12N15/86C12Q1/6886A61K45/00A61P35/00C12Q2600/136C12Q2600/158C12N2310/14C12N2740/15043C12N2800/107C12N2310/531
Inventor 李玉星曹跃琼
Owner SHANGHAI GENECHEM
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