KC-2574

293T-LILRA6-Cell-Line

24330

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Background of 293T-LILRA6-Cell-Line

LILRA6, also known as CD85b, is an activated orphan receptor encoded by leukocyte immunoglobulin like receptors. LILRA6 is mainly expressed in monocytes. Expected activation of inhibitory MHC class I receptor activity; Participate in cytokine mediated signaling pathways.

Specifications

Catalog Number	KC-2574
Cell Line Name	293T-LILRA6-Cell-Line
Clone Number	6#
Host Cell Line	293T
Description	Stable 293T clone expressing exogenous LILRA6 gene
Quantity	Two vials of frozen cells (≥2-10⁶/vial)
Stability	Stable in culture over a minimum of 10 passages
Application	Drug screening and biological assays
Freezing Medium	70% DMEM + 20% FBS + 10% DMSO
Propagation Medium	DMEM + 10% FBS + 1μg/mL Puromycin
Selection Marker	Puromycin
Morphology	Epithelial
Subculture	Split saturated culture 1:4-1:8 every 2-3 days; seed out at about 1-3 × 10⁵ cells/mL
Incubation	37 °C with 5% CO₂
Storage	Liquid nitrogen immediately upon receiving
Doubling Time	Approximately 30 hours
Mycoplasma Status	Negative
In Vivo Validation	NA

Cell Line Generation

293T-LILRA6-cell-line was generated using a lentiviral vector expressing the LILRA6 sequence.

Characterization

Figure 1: Characterization of LILRA6 overexpression in the 293T-LILRA6 stable clone using FACS.

Figure 2: Characterization of LILRA6 overexpression in the 293T stable clone using FACS.

Cell Resuscitation

1. Prewarm culture medium (DMEM supplemented with 10% FBS and 1μg/mL puromycin)in a 37°C water bath. 2. Thaw the frozen vial in a 37°C water bath for 1-2 minutes. 3. Transfer the vial into biosafety cabinet, and wipe the surface with 70% ethanol. 4. Unscrew the top of the vial and transfer the cell suspension gently into a sterile centrifuge tube containing 9.0mL complete culture medium. 5. Spin at ~ 125 × g for 5-7 minutes at room temperature, and discard the supernatant without disturbing the pellet. 6. Resuspend cell pellet with the appropriate volume of complete medium and transfer the cell suspension into a T25 culture flask. 7. Incubate the flask at 37°C, 5% CO₂ incubator. 8. Split saturated culture 1:4-1:8 every 2-3 days; seed out at about 1-3 × 10⁵ cells/mL.

Cell Freezing

1. Prepare the freezing medium (70% DMEM + 20% FBS + 10% DMSO) fresh immediately before use. 2. Keep the freezing medium on ice and label cryovials. 3. Transfer cells to a sterile, conical centrifuge tube, and count the cells. 4. Centrifuge the cells at 250×g for 5 minutes at room temperature and carefully aspirate off the medium. 5. Resuspend the cells at a density of at least 3×10⁶ cells/mL in chilled freezing medium. 6. Aliquot 1 mL of the cell suspension into each cryovial. 7. Freeze cells in the CoolCell freezing container overnight in a -80°C freezer. 8. Transfer vials to liquid nitrogen for long-term storage.

References

1.Hu Y, Lu X, Qiu W, Liu H, Wang Q, Chen Y, Liu W, Feng F, Sun H. The Role of Leukocyte Immunoglobulin-Like Receptors Focusing on the Therapeutic Implications of the Subfamily B2. Curr Drug Targets. 2022;23(15):1430-1452. doi: 10.2174/1389450123666220822201605. PMID: 36017847. 2.Hirayasu K, Arase H. Functional and genetic diversity of leukocyte immunoglobulin-like receptor and implication for disease associations. J Hum Genet. 2015 Nov;60(11):703-8. doi: 10.1038/jhg.2015.64. Epub 2015 Jun 4. PMID: 26040207. 3. Tedla N, An H, Borges L, Vollmer-Conna U, Bryant K, Geczy C, McNeil HP. Expression of activating and inhibitory leukocyte immunoglobulin-like receptors in rheumatoid synovium: correlations to disease activity. Tissue Antigens. 2011 Apr;77(4):305-16. doi: 10.1111/j.1399-0039.2011.01633.x. PMID: 21388353.