KC-3261

293T-cyno-TFRC-High Cell Line

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Background of 293T-cyno-TFRC-High Cell Line

TFRC, also known as CD71, is a transmembrane glycoprotein that encodes a cell surface receptor. TfR1 is required for iron import from transferrin into cells by endocytosis. TFRC is a potential new target in cases of human leukomia & lymphoma. TFRC has been shown to interact with GABARAP and HFE.

Specifications

Catalog Number	KC-3261
Cell Line Name	293T-cyno-TFRC-High Cell Line
Host Cell Line	293T
Description	Stable 293T cell line low expressing exogenous cyno TFRC gene in high level
Quantity	One vial 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 + 1ug/ml Puromycin
Selection Marker	Puromycin
Morphology	Epithelial
Subculture	Split saturated culture 1:4-1:5 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 cyno TFRC cell line was generated using a lentiviral vector expressing the cyno TFRC sequence.

Characterization

Figure 1: Characterization of cyno TFRC overexpression in the 293T cyno TFRC stable clone using FACS.

Cell Resuscitation

1. Prewarm culture medium (DMEM + 10% FBS + 1ug/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 1:4-1:5 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. Antineoplastic efficacy profiles of avapritinib and nintedanib in KIT D816V+ systemic mastocytosis: a preclinical study. Degenfeld-Schonburg, Gamperl, Stefanzl et al. Am J Cancer Res (2023) 13 (2), 355-378
2. Aisen P (November 2004). "Transferrin receptor 1". The International Journal of Biochemistry & Cell Biology. 36 (11): 2137–43.

Use License Agreement

Research Use Only.

Not for use in diagnostic procedures or therapeutic applications.

Redistribution of the cell line or its derivatives is prohibited without prior written permission from Kyinno Biotechnology.