KC-2635

HT1080-FAP Cell Line

24454

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Background of HT1080-FAP Cell Line

FAP, also known as FAPalpha, is a type II transmembrane glycoprotein that belongs to the serine protease family, which is selectively expressed in reactive stromal fibroblasts of epithelial cancers, granulation tissue of healing wounds, and malignant cells of bone and soft tissue sarcomas. FAP is thought to be involved in the control of fibroblast growth or epithelial-mesenchymal interactions during development, tissue repair, and epithelial carcinogenesis. Acts as a tumor suppressor in melanocytic cells through regulation of cell proliferation and survival in a serine protease activity-independent manner.

Specifications

Catalog Number	KC-2635
Cell Line Name	HT1080-FAP Cell Line
Clone Number	1#
Host Cell Line	HT-1080
Description	Stable HT-1080 cell line expressing exogenous human FAP gene
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% RPMI1640 + 20% FBS + 10% DMSO
Propagation Medium	RPMI1640 + 10% FBS + 1μg/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	Yes

Cell Line Generation

HT-108 human FAP cell line was generated using a lentiviral vector expressing the human FAP sequence.

Characterization

Figure 1: Characterization of human Fap overexpression HT1080 stable clone using FACS.

Figure 2: Tumor growth and body weight curves of BALB/c nude mice inoculated with HT1080-FAP cells (n=5).

Cell Resuscitation

1. Prewarm culture medium (RPMI1640 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 1:4-1:5 every 2-3 days; seed out at about 1-3 × 10⁵ cells/mL.

Cell Freezing

1. Prepare the freezing medium (70% RPMI1640 + 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. Puré E, Blomberg R (August 2018). Pro-tumorigenic roles of fibroblast activation protein in cancer: back to the basics. Oncogene. 37 (32): 4343–4357. doi:10.1038/s41388-018-0275-3. PMC 6092565. PMID 29720723.
2. Xin L, Gao J, Zheng Z, Chen Y, Lv S, Zhao Z, Yu C, Yang X, Zhang R. Fibroblast Activation Protein-α as a Target in the Bench-to-Bedside Diagnosis and Treatment of Tumors: A Narrative Review. Front Oncol. 2021 Aug 19;11:648187. doi: 10.3389/fonc.2021.648187. PMID: 34490078; PMCID: PMC8416977.
3. Busek P, Mateu R, Zubal M, Kotackova L, Sedo A (June 2018). Targeting fibroblast activation protein in cancer - Prospects and caveats. Frontiers in Bioscience. 23: 1933–1968. doi:10.2741/4682. PMID 29772538.
4. Niedermeyer J, Garin-Chesa P, Kriz M, Hilberg F, Mueller E, Bamberger U, Rettig WJ, Schnapp A (April 2001). Expression of the fibroblast activation protein during mouse embryo development. The International Journal of Developmental Biology. 45 (2): 445–7. PMID 11330865.

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.