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Li GM, Xiao GZ, Qin PF, Wan XY, Fu YJ, Zheng YH, Luo MY, Ren DL, Liu SP, Chen HX, Lin HC. Single-Cell RNA Sequencing Reveals Heterogeneity in the Tumor Microenvironment between Young-Onset and Old-Onset Colorectal Cancer. Biomolecules 2022; 12:biom12121860. [PMID: 36551288 PMCID: PMC9776336 DOI: 10.3390/biom12121860] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The incidence of sporadic young-onset colorectal cancer (yCRC) is increasing. Compared with old-onset colorectal cancer (oCRC), yCRC has different clinical and molecular characteristics. However, the difference in the tumor microenvironment (TME) between yCRC and oCRC remains unclear. METHODS Fourteen untreated CRC tumor samples were subjected to single-cell RNA sequencing analysis. RESULTS B cells and naïve T cells are enriched in yCRC, while effector T cells and plasma cells are enriched in oCRC. Effector T cells of yCRC show decreased interferon-gamma response and proliferative activity; meanwhile, Treg cells in yCRC show stronger oxidative phosphorylation and TGF-β signaling than that in oCRC. The down-regulated immune response of T cells in yCRC may be regulated by immune and malignant cells, as we observed a downregulation of antigen presentation and immune activations in B cells, dendritic cells, and macrophages. Finally, we identified malignant cells in yCRC and oCRC with high heterogeneity and revealed their interactions with immune cells in the TME. CONCLUSIONS Our data reveal significant differences of TME between yCRC and oCRC, of which the TME of yCRC is more immunosuppressive than oCRC. Malignant cells play an essential role in the formation of the suppressive tumor immune microenvironment.
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Affiliation(s)
- Gui-Ming Li
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
| | - Guo-Zhong Xiao
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
| | - Peng-Fei Qin
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen 518083, China
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China
- Shenzhen Key Laboratory of Single-Cell Omics, BGI-Shenzhen, Shenzhen 518083, China
| | - Xing-Yang Wan
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
| | - Yuan-Ji Fu
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
| | - Yi-Hui Zheng
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
| | - Min-Yi Luo
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
| | - Dong-Lin Ren
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
| | - Shi-Ping Liu
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen 518083, China
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China
- Shenzhen Key Laboratory of Single-Cell Omics, BGI-Shenzhen, Shenzhen 518083, China
- Correspondence: (S.-P.L.); (H.-X.C.); (H.-C.L.); Tel.: +86-15915815776 (H.-C.L.); Fax: +86-20-38254221 (H.-C.L.)
| | - Hua-Xian Chen
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Correspondence: (S.-P.L.); (H.-X.C.); (H.-C.L.); Tel.: +86-15915815776 (H.-C.L.); Fax: +86-20-38254221 (H.-C.L.)
| | - Hong-Cheng Lin
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
- Correspondence: (S.-P.L.); (H.-X.C.); (H.-C.L.); Tel.: +86-15915815776 (H.-C.L.); Fax: +86-20-38254221 (H.-C.L.)
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Metwally IH, Abdelkhalek M, Elbalka SS, Zuhdy M, Fareed AM, Eldamshity O. Clinico-epidemiologic criteria and predictors of survival of rectal cancer among Egyptians in Delta region. JOURNAL OF COLOPROCTOLOGY 2021. [DOI: 10.1016/j.jcol.2019.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Abstract
Background Colorectal cancer represents a global health problem. Rectal cancer in particular is increasing and is believed to carry a unique epidemiologic and prognostic criteria.
Method We herein study retrospectively the data of 245 patients from a tertiary center in Egypt. Clinico-epidemiologic criteria and predictors of survival are analyzed.
Results The disease affects younger population without sex predilection. Prognosis is affected by age, nodal status, metastasis, and bowel obstruction.
Conclusion Rectal cancer has unique criteria in the Egyptian population. A national population based registry is recommended to delineate the nature of the disease in Egypt.
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Affiliation(s)
- Islam H. Metwally
- Oncology Center Mansoura University (OCMU), Surgical Oncology Unit, Mansoura, Egypt
| | - Mohamed Abdelkhalek
- Oncology Center Mansoura University (OCMU), Surgical Oncology Unit, Mansoura, Egypt
| | - Saleh S. Elbalka
- Oncology Center Mansoura University (OCMU), Surgical Oncology Unit, Mansoura, Egypt
| | - Mohamed Zuhdy
- Oncology Center Mansoura University (OCMU), Surgical Oncology Unit, Mansoura, Egypt
| | - Ahmed M. Fareed
- Oncology Center Mansoura University (OCMU), Surgical Oncology Unit, Mansoura, Egypt
| | - Osama Eldamshity
- Oncology Center Mansoura University (OCMU), Surgical Oncology Unit, Mansoura, Egypt
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You YN, Lee LD, Deschner BW, Shibata D. Colorectal Cancer in the Adolescent and Young Adult Population. JCO Oncol Pract 2020; 16:19-27. [PMID: 32039664 PMCID: PMC7351341 DOI: 10.1200/jop.19.00153] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2019] [Indexed: 01/22/2023] Open
Abstract
Colorectal cancer in the young adult population is of increasing incidence and concern. Genetic predisposition and heritable syndromes contribute to this trend, but perhaps more concerning is the majority of new diagnoses that involve no traceable genetic risk factors. Prevention and early recognition, with a high suspicion in the symptomatic young adult, are critical in attenuating recent trends. Clinical management requires coordinated multidisciplinary care from diagnosis to surveillance in order to ensure appropriate management. This review provides a summary of key aspects related to colorectal cancer in adolescents and young adults, including epidemiology, biology, genetics, clinical management, and prevention.
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Affiliation(s)
- Y Nancy You
- University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lucas D Lee
- University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - David Shibata
- University of Tennessee Health Science Center, Memphis, TN
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