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Hu M, Wang Z, Wu Z, Ding P, Pei R, Wang Q, Xing C. Circulating tumor cells in colorectal cancer in the era of precision medicine. J Mol Med (Berl) 2021; 100:197-213. [PMID: 34802071 PMCID: PMC8770420 DOI: 10.1007/s00109-021-02162-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 12/24/2022]
Abstract
Colorectal cancer (CRC) is one of the main causes of cancer-related morbidity and mortality across the globe. Although serum biomarkers such as carcinoembryonic antigen (CEA) and carbohydrate antigen 19–9 (CA-199) have been prevalently used as biomarkers in various cancers, they are neither very sensitive nor highly specific. Repeated tissue biopsies at different times of the disease can be uncomfortable for cancer patients. Additionally, the existence of tumor heterogeneity and the results of local biopsy provide limited information about the overall tumor biology. Against this backdrop, it is necessary to look for reliable and noninvasive biomarkers of CRC. Circulating tumor cells (CTCs), which depart from a primary tumor, enter the bloodstream, and imitate metastasis, have a great potential for precision medicine in patients with CRC. Various efficient CTC isolation platforms have been developed to capture and identify CTCs. The count of CTCs, as well as their biological characteristics and genomic heterogeneity, can be used for the early diagnosis, prognosis, and prediction of treatment response in CRC. This study reviewed the existing CTC isolation techniques and their applications in the clinical diagnosis and treatment of CRC. The study also presented their limitations and provided future research directions.
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Affiliation(s)
- Mingchao Hu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, 215000, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.,Department of General Surgery, The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, 215228, China
| | - Zhili Wang
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Zeen Wu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, 215000, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Pi Ding
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
| | - Qiang Wang
- Department of General Surgery, The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, 215228, China.
| | - Chungen Xing
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, 215000, China.
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Zou D, Mou Z, Wu W, Liu H. TRIM33 protects osteoblasts from oxidative stress-induced apoptosis in osteoporosis by inhibiting FOXO3a ubiquitylation and degradation. Aging Cell 2021; 20:e13367. [PMID: 34101965 PMCID: PMC8282270 DOI: 10.1111/acel.13367] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 03/04/2021] [Accepted: 03/31/2021] [Indexed: 12/18/2022] Open
Abstract
This study aimed to probe into the effect of TRIM33 on oxidative stress‐induced apoptosis of osteoblasts in osteoporosis and to probe into the underlying mechanism. The apoptosis of osteoblasts was induced by H2O2 treatment and tested by flow cytometry. A mouse osteoporosis model was conducted by ovariectomy (OVX). The function of TRIM33 was assessed by in vitro and in vivo experiments. The mechanism of TRIM33 was determined by immunoprecipitation, immunofluorescent staining and co‐transfection experiments. Here, we found that TRIM33 expression was lessened in the osteoblasts of patients with osteoporosis and was positively correlated with the bone mineral density of these patients. FOXO3a and TRIM33 were co‐localized in the osteoblasts nuclei. TRIM33 silence boosted FOXO3a degradation in normal osteoblasts, while TRIM33 overexpression restrained FOXO3a degradation in H2O2‐treated osteoblasts. The binding of TRIM33 to CBP and its overexpression restrained CBP‐mediated FOXO3a acetylation, thereby attenuating FOXO3a ubiquitylation. The H2O2‐induced apoptosis of osteoblasts was restrained by TRIM33 overexpression, while the FOXO3a knockdown reversed this trend. The in vivo experiments corroborated that TRIM33 overexpression attenuated the OVX‐driven impacts in mice. In general, our findings expounded that TRIM33 protected osteoblasts against oxidative stress‐induced apoptosis in osteoporosis and that the underlying mechanism was the restraint of FOXO3a ubiquitylation and degradation.
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Affiliation(s)
- De‐bo Zou
- Department of Orthopaedics The First Affiliated Hospital of Shandong First Medical University Jinan, Shandong China
| | - Zongyou Mou
- Department of Orthopedics Dezhou People’s Hospital Dezhou, Shandong China
| | - Wenliang Wu
- Department of Orthopedics Qilu Hospital of Shandong University Jinan, Shandong China
| | - Haichun Liu
- Department of Orthopedics Qilu Hospital of Shandong University Jinan, Shandong China
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Zhang H, Lin X, Huang Y, Wang M, Cen C, Tang S, Dique MR, Cai L, Luis MA, Smollar J, Wan Y, Cai F. Detection Methods and Clinical Applications of Circulating Tumor Cells in Breast Cancer. Front Oncol 2021; 11:652253. [PMID: 34150621 PMCID: PMC8208079 DOI: 10.3389/fonc.2021.652253] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/29/2021] [Indexed: 12/18/2022] Open
Abstract
Circulating Tumor Cells (CTCs) are cancer cells that split away from the primary tumor and appear in the circulatory system as singular units or clusters, which was first reported by Dr. Thomas Ashworth in 1869. CTCs migrate and implantation occurs at a new site, in a process commonly known as tumor metastasis. In the case of breast cancer, the tumor cells often migrate into locations such as the lungs, brain, and bones, even during the early stages, and this is a notable characteristic of breast cancer. Survival rates have increased significantly over the past few decades because of progress made in radiology and tissue biopsy, making early detection and diagnosis of breast cancer possible. However, liquid biopsy, particularly that involving the collection of CTCs, is a non-invasive method to detect tumor cells in the circulatory system, which can be easily isolated from human plasma, serum, and other body fluids. Compared to traditional tissue biopsies, fluid sample collection has the advantages of being readily available and more acceptable to the patient. It can also detect tumor cells in blood earlier and in smaller numbers, possibly allowing for diagnosis prior to any tumor detection using imaging methods. Because of the scarcity of CTCs circulating in blood vessels (only a few CTCs among billions of erythrocytes and leukocytes), thorough but accurate detection methods are particularly important for further clinical applications.
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Affiliation(s)
- Hongyi Zhang
- Department of Breast Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaoyan Lin
- Department of Breast Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yuan Huang
- Cellomics International Limited, Hong Kong, China
| | - Minghong Wang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Chunmei Cen
- Department of Breast Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shasha Tang
- Department of Breast Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Marcia R Dique
- Department of Breast Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lu Cai
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Manuel A Luis
- Department of Breast Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jillian Smollar
- Department of Biomedical Engineering, The City College of New York, New York, NY, United States
| | - Yuan Wan
- Department of Biomedical Engineering, The City College of New York, New York, NY, United States
| | - Fengfeng Cai
- Department of Breast Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
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TIF1 Proteins in Genome Stability and Cancer. Cancers (Basel) 2020; 12:cancers12082094. [PMID: 32731534 PMCID: PMC7463590 DOI: 10.3390/cancers12082094] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 02/06/2023] Open
Abstract
Genomic instability is a hallmark of cancer cells which results in excessive DNA damage. To counteract this, cells have evolved a tightly regulated DNA damage response (DDR) to rapidly sense DNA damage and promote its repair whilst halting cell cycle progression. The DDR functions predominantly within the context of chromatin and requires the action of chromatin-binding proteins to coordinate the appropriate response. TRIM24, TRIM28, TRIM33 and TRIM66 make up the transcriptional intermediary factor 1 (TIF1) family of chromatin-binding proteins, a subfamily of the large tripartite motif (TRIM) family of E3 ligases. All four TIF1 proteins are aberrantly expressed across numerous cancer types, and increasing evidence suggests that TIF1 family members can function to maintain genome stability by mediating chromatin-based responses to DNA damage. This review provides an overview of the TIF1 family in cancer, focusing on their roles in DNA repair, chromatin regulation and cell cycle regulation.
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