B-hMET MC38_Biocytogen Pharmaceuticals (Beijing) Co., Ltd._Biocytogen, drug development, antibody discovery

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B-hMET MC38

Common name	B-hMET MC38	Catalog number	321957
Aliases	HGFR; AUTS9; RCCP2; c-Met; DFNB97	Disease	Colon carcinoma
Organism	Mouse	Strain	C57BL/6
Tissue types	Colon	Tissue	Colon

Description

The mouse Met gene was replaced by human MET coding sequence in B-hMET MC38 cells. Human MET is highly expressed on the surface of B-hMET MC38 cells.

Application

B-hMET MC38 cells have the capability to establish tumors in vivo and can be used for efficacy studies.

Targeting strategy

Gene targeting strategy for B-hMET MC38 cells. The exogenous promoter and human MET coding sequence was inserted to replace part of murine exon 3. The insertion disrupts the endogenous murine Met gene, resulting in a non-functional transcript.

Protein expression analysis

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MET expression analysis in B-hMET MC38 cells by flow cytometry. Single cell suspensions from wild-type MC38 and B-hMET MC38 cultures were stained with species-specific anti-MET antibody. Mouse MET was not detected on the surface of MC38 cells. Human MET was detected on the surface of B-hMET MC38 cells but not wild-type MC38 cells. The 2-D07 clone of B-hMET MC38 cells was used for in vivo experiments.

Tumor growth curve & Body weight changes

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Subcutaneous homograft tumor growth of B-hMET MC38 cells. B-hMET MC38 cells (5x10⁶) and wild-type MC38 cells (5x10⁵) were subcutaneously implanted into C57BL/6 mice (female, 7-week-old). Tumor volume and body weight were measured twice a week. (A) Average tumor volume ± SEM. (B) Body weight (Mean± SEM). Volume was expressed in mm³ using the formula: V=0.5 X long diameter X short diameter². As shown in panel A, B-hMET MC38 cells were able to establish tumors in vivo and can be used for efficacy studies.

Protein expression analysis of tumor cells

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B-hMET MC38 cells were subcutaneously transplanted into C57BL/6 mice. At the end of the experiment, tumor cells were harvested and assessed for human MET expression by flow cytometry. As shown, human MET was highly expressed on the surface of tumor cells. Therefore, B-hMET MC38 cells can be used for in vivo efficacy studies of novel MET therapeutics.