HCI-041 breast cancer PDX

Sample taken in 2018 from primary breast tumour pre-tx biopsy of Caucasian female, age 50 at time of collection with a primary diagnosis of right IDC (metaplastic).

Contributors

Inventor Institute
Alana L Welm, Yi-Chun Lin, Yoko Sakata DeRose The University of Utah Research Foundation
Cat. #: 162107
Cancer types: Breast cancer
Cancer Subtype: Infiltrating Ductal Carcinoma (Metaplastic)
Gender: Female
Biopsy Site: Breast (primary)
Patient ethnicity: Caucasian
Primary citation: Guillen, et al. 2022. Nature Cancer. Feb; 3(2):232-250. PMID: 35221336
Product description: Human breast cancer patient-derived xenograft (PDX) model that retains high fidelity to original tumour, including spatial structure, intratumour heterogeneity, genomic features, tumour growth rate, metastatic patterns, and drug responses. These highly translatable PDX models can be used to more accurately assess therapeutic efficacy and predict patient responses in preclinical drug validation studies than traditional models. This panel of PDX models includes some of the deadliest forms of breast cancer such as drug-resistant, metastatic tumours, and endocrine-resistant estrogen receptor-positive (ER+) and human epidermal growth factor receptor positive (HER2+) tumours. Sample taken in 2018 from primary breast tumour pre-tx biopsy of Caucasian female, age 50 at time of collection with a primary diagnosis of right IDC (metaplastic); 2018. Patient had previous history of smoking and experienced clinical metastasis in the lung. Patient had not undergone radiation therapy and had not received systemic treatment prior to sample collection. Patient and PDX characteristics were as follows – ER status: negative, PR status: negative, HER2 status: negative. PDX information: PAM50 subtype is basal-like and tests to detect metastasis not done.
Initial handling information: Implant into the cleared inguinal mammary fat pad of female Immune-compromised mice NOD.SCID. NOD.SCID (fresh) time to growth: 1.5 months to 2 cm
Additional notes: Additional Information on PDX establishment: https://www.nature.com/articles/s43018-022-00337-6/figures/9
Mice Passaged: Yes
Engraftment Site: Cleared mammary fat pad
Host Strain: Immunocompromised mice NOD scid gamma (NSG) Jackson Laboratory 5557; NOD/scid, Jackson Laboratory 1303 or NOD rag gamma (NRG), Jackson Laboratory 7799
Histology: PAM50 subtype Basal-like
Production details: Fresh or thawed human breast tumour fragments were implanted into the cleared inguinal mammary fat pad of female Immune-compromised mice. For bone metastasis samples, bone fragments were coimplanted. For liquid specimens, pleural effusion, or ascites fluid, 1-2 milion cells were injected into cleared mammary fat pads in Matrigel. For ER+ tumours, mice were dosed with E2 beeswax pellets and given supplemental E2 via drinking water. When tumours reached 1-2 cm in diameter, tumours were aseptically collected and reimplanted into new m ice or banked. Estrogen-independent ER+ breast PDX models were generated when ER+ PDX tumours were transplated into overiectomized mice without E2 supplementation.
References:

Tufail, et al. 2024. Journal of Translational Med. Jan 3:22(1):15. PMID: 38172946

Bhattacharya, et al. 2023. Journal of Experimental & Clinical Cancer Research. Dec 16:42(1):343. PMID: 38102637

Prekovic, et al. 2023. EMBO Molecular Medicine. Dec 7:15(12):e17737. PMID: 37902007

Daneshdoust, et al. 2023. Cells. Sep 30:12(19):2338. PMID: 37830602

Wang, et al. 2023. Cell Bioscience. Dec 1:13(1):224. PMID: 38041134

Guillen, et al. 2022. Nature Cancer. Feb 3(2):232-250. PMID: 35221336

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