Journal article
Optimization of a mouse model of pancreatic cancer to simulate the human phenotypes of metastasis and cachexia
BMC cancer, Vol.24(1), 414
04/04/2024
DOI: 10.1186/s12885-024-12104-0
PMCID: PMC10993462
PMID: 38570770
Abstract
Pancreatic ductal adenocarcinoma (PDAC) presents with a high mortality rate. Two important features of PDAC contribute to this poor outcome. The first is metastasis which occurs in ~ 80% of PDAC patients. The second is cachexia, which compromises treatment tolerance for patients and reduces their quality of life. Although various mouse models of PDAC exist, recapitulating both metastatic and cachectic features have been challenging.
Here, we optimize an orthotopic mouse model of PDAC by altering several conditions, including the subcloning of parental murine PDAC cells, implantation site, number of transplanted cells, and age of recipient mice. We perform spatial profiling to compare primary and metastatic immune microenvironments and RNA sequencing to gain insight into the mechanisms of muscle wasting in PDAC-induced cachexia, comparing non-metastatic to metastatic conditions.
These modifications extend the time course of the disease and concurrently increase the rate of metastasis to approximately 70%. Furthermore, reliable cachexia endpoints are achieved in both PDAC mice with and without metastases, which is reminiscent of patients. We also find that cachectic muscles from PDAC mice with metastasis exhibit a similar transcriptional profile to muscles derived from mice and patients without metastasis.
Together, this model is likely to be advantageous in both advancing our understanding of the mechanism of PDAC cachexia, as well as in the evaluation of novel therapeutics.
Details
- Title: Subtitle
- Optimization of a mouse model of pancreatic cancer to simulate the human phenotypes of metastasis and cachexia
- Creators
- Victoria Spadafora - Medical University of South CarolinaBenjamin R Pryce - Medical University of South CarolinaAlexander Oles - Medical University of South CarolinaErin E Talbert - University of IowaMartin Romeo - MUSC Hollings Cancer CenterSilvia Vaena - MUSC Hollings Cancer CenterStefano Berto - MUSC Hollings Cancer CenterMichael C Ostrowski - MUSC Hollings Cancer CenterDavid J Wang - Medical University of South CarolinaDenis C Guttridge - MUSC Hollings Cancer Center
- Resource Type
- Journal article
- Publication Details
- BMC cancer, Vol.24(1), 414
- DOI
- 10.1186/s12885-024-12104-0
- PMID
- 38570770
- PMCID
- PMC10993462
- ISSN
- 1471-2407
- eISSN
- 1471-2407
- Grant note
- P20 GM148302 / NIGMS NIH HHS R01 AR072714 / NIAMS NIH HHS P01 CA236778 / NCI NIH HHS 5R01AR072714 / NIAMS NIH HHS
- Language
- English
- Date published
- 04/04/2024
- Academic Unit
- Molecular Physiology and Biophysics; Fraternal Order of Eagles Diabetes Research Center; Health and Human Physiology; Internal Medicine
- Record Identifier
- 9984583617302771
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