1
|
Mui M, Clark M, Vu TMSH, Clemons N, Hollande F, Roth S, Ramsay R, Michael M, Heriot AG, Kong JCH. Use of patient-derived explants as a preclinical model for precision medicine in colorectal cancer: A scoping review. Langenbecks Arch Surg 2023; 408:392. [PMID: 37816905 PMCID: PMC10564805 DOI: 10.1007/s00423-023-03133-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 10/02/2023] [Indexed: 10/12/2023]
Abstract
PURPOSE Whilst the treatment paradigm for colorectal cancer has evolved significantly over time, there is still a lack of reliable biomarkers of treatment response. Treatment decisions are based on high-risk features such as advanced TNM stage and histology. The role of the tumour microenvironment, which can influence tumour progression and treatment response, has generated considerable interest. Patient-derived explant cultures allow preservation of native tissue architecture and tumour microenvironment. The aim of the scoping review is to evaluate the utility of patient-derived explant cultures as a preclinical model in colorectal cancer. METHODS A search was conducted using Ovid MEDLINE, EMBASE, Web of Science, and Cochrane databases from start of database records to September 1, 2022. We included all peer-reviewed human studies in English language which used patient-derived explants as a preclinical model in primary colorectal cancer. Eligible studies were grouped into the following categories: assessing model feasibility; exploring tumour microenvironment; assessing ex vivo drug responses; discovering and validating biomarkers. RESULTS A total of 60 studies were eligible. Fourteen studies demonstrated feasibility of using patient-derived explants as a preclinical model. Ten studies explored the tumour microenvironment. Thirty-eight studies assessed ex vivo drug responses of chemotherapy agents and targeted therapies. Twenty-four studies identified potential biomarkers of treatment response. CONCLUSIONS Given the preservation of tumour microenvironment and tumour heterogeneity, patient-derived explants has the potential to identify reliable biomarkers, treatment resistance mechanisms, and novel therapeutic agents. Further validation studies are required to characterise, refine and standardise this preclinical model before it can become a part of precision medicine in colorectal cancer.
Collapse
Affiliation(s)
- Milton Mui
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia.
| | - Molly Clark
- Department of Colorectal Surgery, Alfred Hospital, Melbourne, Victoria, Australia
| | - Tamara M S H Vu
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Clinical Pathology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Nicholas Clemons
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Frédéric Hollande
- Department of Clinical Pathology, The University of Melbourne, Melbourne, Victoria, Australia
- Victorian Comprehensive Cancer Centre, The University of Melbourne Centre for Cancer Research, Melbourne, Victoria, Australia
| | - Sara Roth
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Robert Ramsay
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Clinical Pathology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Michael Michael
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
- Division of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Alexander G Heriot
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Joseph C H Kong
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Department of Colorectal Surgery, Alfred Hospital, Melbourne, Victoria, Australia
| |
Collapse
|
2
|
Gouda MA, Duose DY, Lapin M, Zalles S, Huang HJ, Xi Y, Zheng X, Aldesoky AI, Alhanafy AM, Shehata MA, Wang J, Kopetz S, Meric-Bernstam F, Wistuba II, Luthra R, Janku F. Mutation-Agnostic Detection of Colorectal Cancer Using Liquid Biopsy-Based Methylation-Specific Signatures. Oncologist 2022; 28:368-372. [PMID: 36200910 PMCID: PMC10078907 DOI: 10.1093/oncolo/oyac204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/29/2022] [Indexed: 11/12/2022] Open
Abstract
Detection of methylation patterns in circulating tumor DNA (ctDNA) can offer a novel approach for cancer diagnostics given the unique signature for each tumor type. We developed a next-generation sequencing (NGS)-based assay targeting 32 CpG sites to detect colorectal cancer-specific ctDNA. NGS was performed on bisulfite-converted libraries and status dichotomization was done using median methylation ratios at all targets. We included plasma samples from patients with metastatic colorectal (n = 20) and non-colorectal cancers (n = 8); and healthy volunteers (n = 4). Median methylation ratio was higher in colorectal cancer compared with non-colorectal cancers (P = .001) and normal donors (P = .005). The assay detected ctDNA in 85% of patients with colorectal cancer at a specificity of 92%. Notably, we were able to detect methylated ctDNA in 75% of patients in whom ctDNA was not detected by other methods. Detection of methylated ctDNA was associated with shorter median progression-free survival compared to non-detection (8 weeks versus 54 weeks; P = .027).
Collapse
Affiliation(s)
- Mohamed A Gouda
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA.,Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, USA.,Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Menoufia University, Shebin Al-Kom, Egypt
| | - Dzifa Y Duose
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Morten Lapin
- Department of Hematology and Oncology, Stavanger University Hospital, Stavanger, Norway
| | - Stephanie Zalles
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Helen J Huang
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Yuanxin Xi
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Xiaofeng Zheng
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Amira I Aldesoky
- Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Menoufia University, Shebin Al-Kom, Egypt
| | - Alshimaa M Alhanafy
- Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Menoufia University, Shebin Al-Kom, Egypt
| | - Mohamed A Shehata
- Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Menoufia University, Shebin Al-Kom, Egypt
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Scott Kopetz
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Funda Meric-Bernstam
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Ignacio I Wistuba
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Rajyalakshmi Luthra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Filip Janku
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, USA
| |
Collapse
|