KC-5540

293T-cyno-TSHR-D240 Cell Line

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Background of 293T-cyno-TSHR-D240 Cell Line

TSHR encodes thyroid stimulating hormone receptor and is also known as LGR3. The encoded protein is a receptor for thyrothropin and thyrostimulin, and its activity is mediated by adenylate cyclase. Defects in this gene are a cause of several types of hyperthyroidism. Three transcript variants encoding different isoforms have been found for this gene.

Specifications

Catalog NumberKC-5540
Cell Line Name293T-cyno-TSHR-D240 Cell Line
NCBI/UniProt Accession NumberA0A2K5X226
Clone Number11#
Host Cell Line293T
Description293T-cyno-TSHR-D240 is a stable engineered cell line expressing cyno TSHR-D240
QuantityOne vial of frozen cells (≥2×10⁶ cells/vial)
StabilityStable in culture over a minimum of 10 passages
ApplicationDrug screening and biological assays
Freezing Medium70% DMEM+20% FBS+10% DMSO
Propagation MediumDMEM+10%FBS+1μg/mL puromycin
Selection MarkerPuromycin
MorphologyEpithelial
SubcultureSplit at a ratio of 1:4–1:6 every 2–3 days
Incubation37 °C with 5% CO₂
StorageLiquid nitrogen immediately upon receiving
Doubling TimeEstimated 19–36 hours
Mycoplasma StatusNegative
In Vivo ValidationNA

Cell Line Generation

293T-cyno-TSHR-D240 cell line was generated using a lentiviral vector expressing the cyno TSHR-D240 sequence.

Characterization

Figure 1. Characterization of cyno-TSHR-D240 over-expression in the 293T-cyno-TSHR-D240 stable clone using FACS.

Figure 2. Characterization of 293T-cyno-TSHR-D240 cell line stable clone using PCR sequencing.

Cell Resuscitation

  1. Pre-warm complete culture medium (basal medium and 10% FBS) in a 37°C water bath.
  2. Rapidly thaw the cryovial in a 37°C water bath for 1-2 minutes with gentle agitation.
  3. Transfer the vial to a biosafety cabinet, and disinfect the exterior with 70% ethanol.
  4. Aseptically transfer the cell suspension dropwise into a sterile centrifuge tube containing 9.0 mL of pre-warmed complete medium.
  5. Centrifuge at approximately 125 × g for 5–7 minutes at room temperature, carefully aspirate the supernatant without disturbing the cell pellet.
  6. Gently resuspend the pellet in an appropriate volume of complete medium and transfer the suspension into a T25 flask.
  7. Incubate the flask in a 37°C in a humidified 5% CO₂ incubator.
  8. Assess cell viability and morphology after 24 hours. If cells appear healthy, replace the medium with fresh medium supplemented with the appropriate selective antibiotic.
  9. Subculture the cells at a ratio of 1:4–1:6 every 2–3 days upon reaching 80%–90% confluency.

Cell Freezing

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

References

  1. Xu S, Peng Y, Li X et al. TSHR in thyroid cancer: bridging biological insights to targeted strategies. European thyroid journal. 2025 Aug 1;14(4):. PMID: 40532044. doi: 10.1530/ETJ-24-0369.
  2. Zufry H, Hariyanto TI TSHR Gene (rs179247) Polymorphism and Susceptibility to Autoimmune Thyroid Disease: A Systematic Review and Meta-Analysis. Endocrinology and metabolism (Seoul, Korea). 2024 Aug;39(4):603-614. PMID: 39086275. doi: 10.3803/EnM.2024.1987.
  3. Smith TJ TSHR-IGF-IR complex drives orbital fibroblast misbehavior in thyroid eye disease. Current opinion in endocrinology, diabetes, and obesity. 2024 Oct 1;31(5):177-183. PMID: 39082947. doi: 10.1097/MED.0000000000000878.

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.