scholarly journals Clinical Significance of Circulating Tumor Cells in Gastrointestinal Carcinomas

Diagnostics ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 192
Author(s):  
Leonie Konczalla ◽  
Anna Wöstemeier ◽  
Marius Kemper ◽  
Karl-Frederik Karstens ◽  
Jakob Izbicki ◽  
...  
Keyword(s):  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Clinical Application ◽  
Liquid Biopsy ◽  
Cancer Diagnostics ◽  
Therapeutic Approaches ◽  
Primary Tumors ◽  
New Therapeutic Approaches ◽  
Tumor Dissemination

The idea of a liquid biopsy to screen, surveil and treat cancer patients is an intensively discussed and highly awaited tool in the field of oncology. Despite intensive research in this field, the clinical application has not been implemented yet and further research has to be conducted. However, one component of the liquid biopsy is circulating tumor cells (CTCs) whose potential for clinical application is evaluated in the following. CTCs can shed from primary tumors to the peripheral blood at any time point during the progress of a malignant disease. Following, one single CTC can be the origin for distant metastasis at later cancer stage. Thus, CTCs have great potential to either be used in cancer diagnostics and patient stratification or to function as a target for new therapeutic approaches to stop tumor dissemination and metastasis at the very early beginning. Due to the biological fundamental role of CTCs in tumor progression, here, we provide an overview of CTCs in gastrointestinal cancers and their potential use in the clinical setting. In particular, we discuss the usage of CTC for screening and stratifying patients’ risk. Moreover, we will discuss the potential role of CTCs for treatment specification and treatment monitoring.

scholarly journals Nanotechnology-Assisted Isolation and Analysis of Circulating Tumor Cells on Microfluidic Devices

Micromachines ◽  
2020 ◽  
Vol 11 (8) ◽  
pp. 774 ◽  
Author(s):  
Jie Cheng ◽  
Yang Liu ◽  
Yang Zhao ◽  
Lina Zhang ◽  
Lingqian Zhang ◽  
...  
Keyword(s):  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Liquid Biopsy ◽  
Cancer Metastasis ◽  
Human Peripheral Blood ◽  
Microfluidic Devices ◽  
Detection Sensitivity ◽  
Cell Capture ◽  
Primary Tumors ◽  
Downstream Analysis

Circulating tumor cells (CTCs), a type of cancer cell that spreads from primary tumors into human peripheral blood and are considered as a new biomarker of cancer liquid biopsy. It provides the direction for understanding the biology of cancer metastasis and progression. Isolation and analysis of CTCs offer the possibility for early cancer detection and dynamic prognosis monitoring. The extremely low quantity and high heterogeneity of CTCs are the major challenges for the application of CTCs in liquid biopsy. There have been significant research endeavors to develop efficient and reliable approaches to CTC isolation and analysis in the past few decades. With the advancement of microfabrication and nanomaterials, a variety of approaches have now emerged for CTC isolation and analysis on microfluidic platforms combined with nanotechnology. These new approaches show advantages in terms of cell capture efficiency, purity, detection sensitivity and specificity. This review focuses on recent progress in the field of nanotechnology-assisted microfluidics for CTC isolation and detection. Firstly, CTC isolation approaches using nanomaterial-based microfluidic devices are summarized and discussed. The different strategies for CTC release from the devices are specifically outlined. In addition, existing nanotechnology-assisted methods for CTC downstream analysis are summarized. Some perspectives are discussed on the challenges of current methods for CTC studies and promising research directions.

The role of liquid biopsies in prostate cancer management

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Chi-Ju Kim ◽  
Liang Dong ◽  
Sarah Amend ◽  
Yoon-Kyoung Cho ◽  
Kenneth Pienta
Keyword(s):  
Prostate Cancer ◽  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Cancer Diagnosis ◽  
Liquid Biopsy ◽  
Liquid Biopsies ◽  
Cancer Management ◽  
The Common ◽  
Prostate Cancer Management

Liquid biopsy has emerged as a complement to invasive tissue biopsy to guide cancer diagnosis and treatment. The common liquid biopsy biomarkers are circulating tumor cells (CTCs), extracellular vesicles (EVs),...

scholarly journals Detection and clinical significance of circulating tumor cells in colorectal cancer

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Miao Jiang ◽  
Shuiling Jin ◽  
Jinming Han ◽  
Tong Li ◽  
Jianxiang Shi ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Liquid Biopsy ◽  
Histopathological Examination ◽  
Peripheral Circulation ◽  
Future Research ◽  
Dynamic Changes ◽  
Primary Tumors ◽  
Invasive Method

AbstractHistopathological examination (biopsy) is the “gold standard” for the diagnosis of colorectal cancer (CRC). However, biopsy is an invasive method, and due to the temporal and spatial heterogeneity of the tumor, a single biopsy cannot reveal the comprehensive biological characteristics and dynamic changes of the tumor. Therefore, there is a need for new biomarkers to improve CRC diagnosis and to monitor and treat CRC patients. Numerous studies have shown that “liquid biopsy” is a promising minimally invasive method for early CRC detection. A liquid biopsy mainly samples circulating tumor cells (CTCs), circulating tumor DNA (ctDNA), microRNA (miRNA) and extracellular vesicles (EVs). CTCs are malignant cells that are shed from the primary tumors and/or metastases into the peripheral circulation. CTCs carry information on both primary tumors and metastases that can reflect dynamic changes in tumors in a timely manner. As a promising biomarker, CTCs can be used for early disease detection, treatment response and disease progression evaluation, disease mechanism elucidation, and therapeutic target identification for drug development. This review will discuss currently available technologies for plasma CTC isolation and detection, their utility in the management of CRC patients and future research directions.

scholarly journals Circulating tumor cells (CTC) and Cell-free DNA (cfDNA): Liquid biopsy for cancer diagnostics

2020 ◽  
Vol 9 (0) ◽  
pp. 59-63
Author(s):  
Ayaka Nakamura ◽  
Minako Abe ◽  
Yukie Saeki ◽  
Fumika Kono ◽  
Yasuha Ono ◽  
...  
Keyword(s):  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Liquid Biopsy ◽  
Cancer Diagnostics ◽  
Cell Free Dna ◽  
Free Dna

scholarly journals The role of a semi-automated NanoVelcro system in capturing circulating tumor cells and evaluating their prognostic value for gestational choriocarcinoma

2019 ◽  
Vol 7 (3) ◽  
pp. 1200-1210 ◽  
Author(s):  
Minzhi Hou ◽  
Yongjiang Zheng ◽  
Zhiming Ding ◽  
Shanyang He ◽  
Manman Xu ◽  
...  
Keyword(s):  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Clinical Application ◽  
Prognostic Value ◽  
Gestational Choriocarcinoma

Clinical application of CTC in gestational choriocarcinoma.

scholarly journals Role of liquid biopsy in the detection and monitoring of cervical cancer

2019 ◽  
Vol 18 (2) ◽  
pp. 92-101
Author(s):  
E. V. Kayukova
Keyword(s):  
Cervical Cancer ◽  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Liquid Biopsy ◽  
Locally Advanced ◽  
Modern Method ◽  
Reproductive Age ◽  
Diagnostic Efficiency ◽  
Non Invasive

Cervical cancer is one of the most common cancers among women of reproductive age. The cytological screening is not always effective and appropriate, therefore the search for new predictive markers of the cervical cancer are of great importance. there are no biomarkers for monitoring patients previously treated for cervical cancer. liquid biopsy is a new option of personalized approach to the detection and monitoring of cervical cancer. it is a set of methods for determining the derivatives of a tumor in biological media, most often in the blood: circulating tumor cells, circulating dNa, RNa, exosomes, etc.The purpose of the studywas to analyze data on the role of liquid biopsy in the diagnosis and monitoring of cervical cancer.Material and methods. We analyzed publications available from pubmed, Elibrary over the past 10 years.Results. Circulating tumor cells, circulating tumor dNa and exosomes are the most studied cancer non-invasive biomarkers. these circulating biomarkers play a key role in the understanding of cervical carcenogenesis, chemo-and radioresistance. currently, liquid biopsy is considered as a promising modern method for the detection and monitoring of cervical cancer. the diagnostic efficiency of this method is good, so it can be used for cervcal cancer screening. However, such statements require further research in this direction. in addition, given the emerging information on the molecular carcinogenesis of cervical cancer, liquid biopsy can also be used as a basis for the development of targeted therapy for locally advanced and generalized cervical cancer.Conclusion. Liquid biopsy is the non-invasive method of cervical cancer monitoring.

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