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Orthotopic Implantation of Patient-Derived Cancer Cells in Mice Recapitulates Advanced Colorectal Cancer
Published on: February 10, 2023
Immunotherapy in advanced colorectal cancer: Current landscape, mechanisms, challenges, and future directions
Jianfei Huang1, Guojiang Tian1
1Proctology Department, Shaoxing People's Hospital, Shaoxing, Zhejiang Province, China.
Abstract:
ObjectiveTo summarize the current status, mechanisms, challenges, and future directions of immunotherapy in advanced rectal cancer.Data SourcesPublished clinical trials, translational studies, and mechanistic reports on immunotherapeutic strategies for colorectal and rectal cancer.Data SummaryImmune checkpoint inhibitors (ICIs), particularly PD-1/PD-L1 and CTLA-4 blockade, show promise in MSI-H rectal cancer, while combination therapies are under investigation for microsatellite stable (MSS) tumors. Tumor vaccines and T-cell-based approaches, such as CAR-T and TCR-engineered therapies, are emerging strategies. Major barriers include immune evasion, microenvironment heterogeneity, and resistance mechanisms in MSS disease.ConclusionsImmunotherapy is transforming the treatment landscape of advanced rectal cancer, yet challenges persist. Continued mechanistic exploration and rational combination strategies are essential to improve response rates and expand benefit to MSS patients.
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Overview of Advanced Functional Groups
Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of Advanced Functional Groups
The table below summarizes some of the major functional groups in organic chemistry.

