KC-5003

293T-cyno-CD2-Low Cell Line

64633

Home » 293T-cyno-CD2-Low Cell Line

Background of 293T-cyno-CD2-Low Cell Line

CD2 (CD2 Molecule) is a Protein Coding gene.The protein encoded by this gene is a surface antigen found on all peripheral blood T-cells.The encoded protein interacts with LFA3 (CD58) on antigen presenting cells to optimize immune recognition.CD2 interacts with lymphocyte function-associated antigen CD58 (LFA-3) and CD48/BCM1 to mediate adhesion between T-cells and other cell types. Diseases associated with CD2 include Mastocytosis, Cutaneous and Mastocytosis.

Specifications

Catalog Number	KC-5003
Cell Line Name	293T-cyno-CD2-Low Cell Line
NCBI/UniProt Accession Number	XM_045364881
Clone Number	1-3#
Host Cell Line	293T
Description	Stable 293T cell line expressing exogenous cyno-CD2 gene in low level
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% basal medium+20% FBS+10% DMSO
Propagation Medium	DMEM+10% FBS +1μg/mL Puromycin
Selection Marker	Puromycin
Morphology	Epithelial-like
Subculture	Split saturated culture 1:4-1:8 every 2-3 days
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-CD2-Low cell line was generated using a lentiviral vector expressing the cyno-CD2 sequence.

Characterization

Figure 1: Characterization of cyno-CD2 overexpression in the 293T-cyno-CD2-Low stable clone using FACS.

Figure 2: Characterization of cyno-CD2 mcherry in the 293T-cyno-CD2-Low stable clone using PCR sequencing.

Cell Resuscitation

Pre-warm complete culture medium (basal medium and 10% FBS) in a 37°C water bath.
Rapidly thaw the cryovial in a 37°C water bath for 1-2 minutes with gentle agitation.
Transfer the vial to a biosafety cabinet, and disinfect the exterior with 70% ethanol.
Aseptically transfer the cell suspension dropwise into a sterile centrifuge tube containing 9.0 mL of pre-warmed complete medium.
Centrifuge at approximately 125 × g for 5–7 minutes at room temperature, carefully aspirate the supernatant without disturbing the cell pellet.
Gently resuspend the pellet in an appropriate volume of complete medium and transfer the suspension into a T25 flask.
Incubate the flask in a 37°C in a humidified 5% CO₂ incubator.
Assess cell viability and morphology after 24 hours. If cells appear healthy, replace the medium with fresh medium supplemented with the appropriate selective antibiotic.
Subculture the cells at a ratio of 1:4-1:8 every 2-3 days upon reaching 80%–90% confluency.

Cell Freezing

Prepare the freezing medium (70% basal medium, 20% FBS and 10% DMSO) freshly before use.
Pre-chill the freezing medium on ice and label the cryovials accordingly.
Transfer the cell suspension to a sterile conical tube and perform a cell count to determine total viability and density.
Centrifuge the cells at 250×g for 5 minutes at room temperature; carefully aspirate the supernatant.
Gently resuspend the cell pellet in chilled freezing medium, ensuring a minimum cell density of 3×10⁶ cells/mL.
Aliquot 1 mL of the cell suspension into each pre-labeled cryovial.
Place the cryovials into a CoolCell® container and store at -80°C overnight for controlled-rate cooling.
Transfer the cryovials to the liquid nitrogen for long-term storage the following day.

References

1.Kato K, Koyanagi M, Okada H, Takanashi T, Wong YW, Williams AF, Okumura K, Yagita H. CD48 is a counter-receptor for mouse CD2 and is involved in T cell activation. J Exp Med. 1992 Nov 1;176(5):1241-9.
2. Rutschmann R, Karjalainen K. Mouse LFA-3 studied with chimeric soluble CD2 shows preferential expression on lymphoid cells. Eur J Immunol. 1991 Jun;21(6):1379-84.
3. Sultan P, Schechner JS, McNiff JM, Hochman PS, Hughes CC, Lorber MI, Askenase PW, Pober JS. Blockade of CD2-LFA-3 interactions protects human skin allografts in immunodeficient mouse/human chimeras. Nat Biotechnol. 1997 Aug;15(8):759-62.

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.