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Updated: Jun 26, 2026
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Colorectal Cancer Cell Surface Protein Profiling Using an Antibody Microarray and Fluorescence Multiplexing
Published on: September 25, 2011
[Gene expression profile difference between colorectal cancer tissue and pericancerous mucosa by DNA microarray]
Xiao-Yan Han1, Hong-Bo Wei, Zong-Heng Zheng
1Central Laboratory, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
Summary
Gene expression profiles differ significantly between colorectal cancer tissues and normal tissues. Novel genes associated with colorectal carcinogenesis were identified, including those in adjacent non-cancerous tissues, suggesting roles in malignant transformation.
Area of Science:
- Molecular Biology
- Genomics
- Cancer Research
Context:
- Colorectal cancer (CRC) development involves complex genetic alterations.
- Understanding gene expression differences is crucial for identifying carcinogenic pathways.
Purpose:
- To analyze gene expression profiles in colorectal cancer, adjacent non-cancerous mucosa, and normal mucosa.
- To identify novel genes associated with colorectal carcinogenesis using DNA microarray technology.
Summary:
- DNA microarray analysis revealed significant differences in gene expression between cancerous and normal colorectal tissues, with 769 differentially expressed genes identified.
- Pericancerous tissues also showed differential gene expression, with 155 and 230 genes altered at 3 cm and 5 cm from the tumor, respectively.
- Key differentially expressed genes were linked to tumor development, cell proliferation, apoptosis, and extracellular matrix remodeling.
Impact:
- Identifies potential novel biomarkers for colorectal cancer diagnosis and prognosis.
- Highlights the biological changes in non-cancerous tissues preceding malignant transformation.
- Provides insights into the molecular mechanisms underlying colorectal carcinogenesis.
