Annals of Coloproctology

Original Article

Colorectal cancer

Comparing the efficacy of combined versus single immune cell adaptive therapy targeting colorectal cancer: Denis Nchang Che, NaHye Lee, Hyo-Jung Lee, Yea-Won Kim, Solongo Battulga, Ha Na Lee, Won-Kook Ham, Hyunah Lee, Mi Young Lee, Dawoon Kim, Haengji Kang, Subin Yun, Jinju Park, Daeyoun David Won, Jong Kyun Lee; Ann Coloproctol. 2024;40(2):121-135. Published online April 22, 2024; DOI: https://doi.org/10.3393/ac.2023.00402.0057

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Abstract PDF Supplementary Material: Purpose
Colorectal cancer (CRC) is the most frequent cancer with limited therapeutic achievements. Recently, adoptive cellular immunotherapy has been developed as an antitumor therapy. However, its efficacy has not been tested in CRC. This study investigated the ability of an immune cell cocktail of dendritic cells (DCs), T cells, and natural killer (NK) cells to overcome immunological hurdles and improve the therapeutic efficacy of cell therapy for CRC.
Methods
CRC lysate-pulsed monocyte-derived DCs (Mo-DCs), CRC antigen-specifically expanded T cells (CTL), and in vitro-expanded NK cells were cultured from patient peripheral blood mononuclear cells (PBMC). The ability of the combined immune cells to kill autologous tumor cells was investigated by co-culturing the combined immune cells with patient-derived tumor cells.
Results
The Mo-DCs produced expressed T cell co-stimulating molecules like CD80, CD86, human leukocyte antigen (HLA)-DR and HLA-ABC, at high levels and were capable of activating naive T cells. The expanded T cells were predominantly CD8 T cells with high levels of CD8 effector memory cells and low levels of regulatory T cells. The NK cells expressed high levels of activating receptors and were capable of killing other cancer cell lines (K562 and HT29). The immune cell cocktail demonstrated a higher ability to kill autologous tumor cells than single types. An in vivo preclinical study confirmed the safety of the combined immune cell adaptive therapy showing no therapy-related death or general toxicity symptoms.
Conclusion
The results suggested that combined immune cell adaptive therapy could overcome the limited efficacy of cell immunotherapy.

Case Report

Malignant disease,Rare disease & stoma,Complication

Colonic Perforation After Treatment With Nivolumab in Esophageal Cancer: A Case Report: Hye Jung Cho, Woo Ram Kim, Joo-Hang Kim, Duk Hwan Kim, Dae Jung Kim, Haeyoun Kang; Ann Coloproctol. 2021;37(Suppl 1):S39-S43. Published online June 24, 2021; DOI: https://doi.org/10.3393/ac.2020.00213.0030

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5 Web of Science
8 Citations

Abstract PDF

With the advent of checkpoint inhibitors, it has opened up opportunities for numerous cancer patients. However, as is the case with every treatment, complications need to be weighed. Gastrointestinal adverse effects, such as diarrhea and colitis are well-known complications for checkpoint inhibitors. In severe cases, colitis-induced colonic perforation may occur with an estimation of 1.0% to 1.5% in anti-CTLA-4 antibodies. However, only a handful of cases of such devastating complications have been reported in anti-PD-1 antibodies such as pembrolizumab and nivolumab. We here report a case of intestinal perforation in a patient treated with nivolumab.

Citations

Citations to this article as recorded by

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