| Field | Specification |
|---|---|
| Product Format | Frozen |
| Product Type | |
| Shipping | |
| Storage |
Overview
The HCI-EC-23 cell line is a novel, adherent endometrioid endometrial cancer (EEC) model that was developed from a patient-derived xenograft (PDX) model. The primary tumor was microsatellite instability-high (MSI-high) and estrogen receptor (ER) positive.
Key elements and design rationale
- Model identity: ER Expressing Epithelial Endometrial Cancer Cell Line (HCI-EC-23) is supplied as a tumor cell line derived from Human endometrium.
- Growth properties: Adherent, epithelial
- Growth conditions: PriCoat™ T25 Flasks (G299) or Applied Cell Extracellular Matrix (G422) are recommended for optimal cell culture. RPMI 1640 Medium (TM503) + 10% FBS(Regular*) + 1% Penicillin/Streptomycin Solution (G255), 37.0°C, 5% CO₂. *Do not heat-inactivate
- Product format: Frozen, BSL-2
This cell-based model is generally used in endometrium biology, phenotype comparison, and assay development studies. Donor/background information is available for contextual interpretation.
Biological background
The cell line retains these characteristics, maintaining ER expression and estrogen responsiveness both in vitro and in vivo. Characterization of HCI-EC-23 revealed that it is mutated in many commonly altered genes in EEC, such as PTEN, PIK3CA, and ARID1A, and has relatively few copy-number alterations. It exhibits paradoxical activation of ER by tamoxifen and shows an anti-proliferative response to progesterone, which is crucial for translational studies involving synthetic progesterone treatments. In vitro, HCI-EC-23 demonstrates a strong estrogen dependence for proliferation, with estrogen significantly boosting growth and progesterone reducing it. HCI-EC-23 tumors in mice also show estrogen dependence, with a reduction in tumor volume when treated with progesterone. The cell line’s unique features, including its MSI-high status, ER positivity, and distinct genetic background compared to the Ishikawa cell line, make it a valuable model for studying the hormonal underpinnings of endometrial cancer. HCI-EC-23 is well-suited for genetic screens, drug testing, and understanding the molecular aspects of hormonally driven endometrial cancer. Donor/background information provided for this product: Female, 66, Grade 2, Stage 1A endometrioid endometrial carcinoma.
Research relevance and current trends
- Cell-line models continue to be used for tumor phenotype comparison, pathway perturbation studies, and assay development in controlled in vitro systems.
- Engineered and subtype-defined tumor lines are often used to compare growth behavior, reporter output, and response patterns across matched experimental conditions.
- When metastatic or lineage features are described, investigators commonly interpret results alongside morphology, passage history, and culture environment.
Common research applications
- Cancer biology studies that compare proliferation-associated behavior, morphology, and pathway responses in vitro.
- Assay development for treatment response, reporter monitoring, or phenotype comparison under matched culture conditions.
- Side-by-side comparison of engineered versus parental background characteristics when relevant to the study design.
Changes in morphology, growth rate, viability, or reporter signal are typically interpreted together with passage history, culture matrix, and the specified growth conditions for the model.
Notes for experimental interpretation
- Morphology, doubling behavior, and reporter or marker output can shift with passage number, substrate choice, and medium composition; these variables should be recorded alongside experimental readouts.
- Matched controls such as parental cells, untreated cultures, or parallel cultures maintained under identical conditions help distinguish background effects from biology of interest.
Culture and product details
- Growth Conditions: PriCoat™ T25 Flasks (G299) or Applied Cell Extracellular Matrix (G422) are recommended for optimal cell culture. RPMI 1640 Medium (TM503) + 10% FBS(Regular*) + 1% Penicillin/Streptomycin Solution (G255), 37.0°C, 5% CO₂. *Do not heat-inactivate
- Seeding Density (cells/cm²): 30,000
- Thaw cells quickly in a 37°C water bath while agitating gently (maximum 2 minutes). The vial cap should be kept above the water level to minimize the risk of contamination.
- Decontaminate the vial by spraying and wiping the exterior of the vial with 70% ethanol. From this point onwards, all operations should be strictly carried out inside a biological safety cabinet using aseptic conditions.
- Transfer the cell suspension into a 15ml sterile conical tube containing 5ml of pre-warmed, complete growth media. Centrifuge cells at 125xg for 5-7 minutes.
- Aspirate the supernatant without disturbing the cell pellet. Re-suspend the cell pellet in the recommended pre-warmed, complete growth media and dispense into a T25 culture flask.
- Incubate the cells at the recommended conditions.
- Aspirate the culture media, and add 2-3ml of pre-warmed 0.25% Trypsin-EDTA to the culture vessel.
- Observe the cells under a microscope to confirm detachment (typically within 2-10 minutes). Cells that are difficult to detach can be put in 37°C, for several minutes to facilitate detachment.
- Neutralize Trypsin-EDTA by adding an equal volume of the complete growth media into the culture vessel.
- Transfer the culture suspension into a sterile centrifuge tube, and centrifuge at 125xg for 5 minutes. The actual centrifuge duration and speed may vary depending on the cell type.
- Aspirate the supernatant, and re-suspend the pellet with pre-warmed fresh complete growth media. Add appropriate aliquots of the cell suspension to new culture vessels, as desired.
- Incubate the cells at the recommended conditions.
How should I handle live cells once I receive them?
https://www.abmgood.com/immortalized-cells-documents.html
Following these guidelines will help ensure optimal cell viability and performance.
Why are these cells classified as biosafety level II?
What is your warranty or return policy?
Please refer to the following link for full information:
https://www.abmgood.com/terms
For additional questions, our Order team is happy to assist and can be reached at order@abmgood.com.
How many times can cells divide?
Primary cells have a limited lifespan and will undergo a finite number of population doublings before entering senescence. The exact number varies by cell type and culture conditions.
Immortalized cell lines are capable of extended or indefinite proliferation under proper culture conditions, although growth characteristics may vary between lines.
Do I need Applied Cell Extracellular Matrix (G422) if I am using PriCoat™ flasks?
Cell line sourcing and selection (species, tissue, and disease model matching) · Stable cell line engineering (overexpression, knockdown, knockout via CRISPR/Cas9, shRNA, sgRNA) · Reporter gene integration (GFP, RFP, luciferase, fluorescent/bioluminescent constructs) · Genome editing and knockin (point mutations, tagged endogenous proteins, conditional alleles) · Inducible expression systems (Tet-On/Off and regulatable constructs) · Drug resistance marker selection (puromycin, G418, hygromycin, and others) · Custom growth and media optimisation for specific assay requirements · Scale-up production for high-throughput screening campaigns · Authentication and QC services (STR profiling, mycoplasma testing, viability assessment). Talk to a Scientist or contact support@biohippo.com.
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