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Tamada H, Uehara T, Yoshizawa T, Iwaya M, Asaka S, Nakajima T, Kamakura M, Ota H. Exploring LGR5 as a prognostic marker of extrahepatic cholangiocarcinoma: insights from expression analysis and clinical correlations. Diagn Pathol 2024; 19:116. [PMID: 39198902 PMCID: PMC11350935 DOI: 10.1186/s13000-024-01537-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Accepted: 08/15/2024] [Indexed: 09/01/2024] Open
Abstract
BACKGROUND Leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5) is a cancer stem cell (CSC) marker of colorectal cancer and may be a CSC marker of other cancer types. Few studies have been conducted on LGR5 expression in extrahepatic cholangiocarcinoma (ECC). METHODS We analyzed LGR5 expression using RNAscope, a highly sensitive RNA in situ hybridization technique. Fifty-three ECCs were selected from the medical archives at Shinshu University Hospital and analyzed using a tissue microarray. LGR5 expression levels were divided into expression and no expression groups. LGR5 expression and clinicopathological characteristics were analyzed. RESULTS Among 25 cases, no LGR5-positive dots were identified. Among 28 cases, some LGR5-positive dots were observed in carcinoma cells, together with a wide range of LGR5-positive cells. LGR5 expression was conspicuous in glandular duct formations. Well- to moderately differentiated types showed significantly higher LGR5 expression than the poorly differentiated type (p = 0.0268). LGR5 expression was associated with good overall survival (p = 0.0219) and good disease-free survival (DFS) (p = 0.0228). High LGR5 expression was associated with well- to moderately-differentiated types, indicating a favorable prognosis. In terms of DFS, multivariate analysis showed that high LGR5 expression was an independent favorable prognostic factor (p = 0.0397). CONCLUSIONS These findings suggest that LGR5 is a promising, novel prognostic marker.
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Affiliation(s)
- Hisashi Tamada
- Department of Pathology, Nagano Red Cross Hospital, Nagano, Japan
- Department of Laboratory Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
| | - Takeshi Uehara
- Department of Laboratory Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan.
| | - Takahiro Yoshizawa
- Department of Gastroenterological, Pediatric and Transplant Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
| | - Mai Iwaya
- Department of Laboratory Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
| | - Shiho Asaka
- Department of Laboratory Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
- Department of Laboratory Medicine, Nagano Children's Hospital, Azumino, Japan
| | - Tomoyuki Nakajima
- Department of Laboratory Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
| | - Masato Kamakura
- Department of Gastroenterology, Nagano Red Cross Hospital, Nagano, Japan
| | - Hiroyoshi Ota
- Department of Laboratory Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
- Department of Biomedical Laboratory Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
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Sawaguchi H, Uehara T, Iwaya M, Asaka S, Nakajima T, Kamakura M, Nagaya T, Yoshizawa T, Ota H, Umemura T. Leucine-rich repeat-containing G protein-coupled receptor 5 expression in lymph node metastases of colorectal cancer: Clinicopathological insights and prognostic implications. Pathol Int 2024; 74:387-393. [PMID: 38787285 DOI: 10.1111/pin.13439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/01/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
Leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5), a significant cancer stem cell marker in colorectal cancer (CRC), lacks lymph node (LN) expression studies. In this study, we identified LGR5 expression by RNAscope, a highly sensitive RNA in situ method, and analyzed its association with clinicopathological characteristics. Tissue microarrays were generated from primary tumors (PTs) and LN metastases in paraffin-embedded blocks of 38 CRC surgical resection materials. LGR5 expression by RNAscope was evaluated by dividing the expression levels into negative and positive expression. In all but two cases of LN metastasis, LGR5-positive dots were detected in tumor cells, and there was a wide range of LGR5-positive cells. More LGR5-positive dots were identified in the gland-forming region. Twenty-three cases were classified into a high LGR5-expression group, and 15 cases were classified into a low LGR5-expression group. In the high LGR5-expression group, the histological grade was lower than in the low LGR5-expression group (p = 0.0159), while necrosis was significantly more prevalent (p = 0.0326), and the tumor, node, metastasis stage was significantly lower (p = 0.0302). There was no association between LGR5 expression levels in LN metastases and LGR5 expression levels in PT tissue. LGR5 expression in LN metastases may influence prognosis. Further analysis may lead to new therapeutic strategies.
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Affiliation(s)
- Hiroshi Sawaguchi
- Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takeshi Uehara
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Mai Iwaya
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Shiho Asaka
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
- Department of Laboratory Medicine, Nagano Children's Hospital, Azumino, Japan
| | - Tomoyuki Nakajima
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Masato Kamakura
- Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tadanobu Nagaya
- Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takahiro Yoshizawa
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hiroyoshi Ota
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
- Department of Biomedical Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takeji Umemura
- Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, Matsumoto, Japan
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Yang G, Cao Y, Yang X, Cui T, Tan NZV, Lim YK, Fu Y, Cao X, Bhandari A, Enikeev M, Efetov S, Balaban V, He M. Advancements in nanomedicine: Precision delivery strategies for male pelvic malignancies - Spotlight on prostate and colorectal cancer. Exp Mol Pathol 2024; 137:104904. [PMID: 38788248 DOI: 10.1016/j.yexmp.2024.104904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 05/10/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND Pelvic malignancies consistently pose significant global health challenges, adversely affecting the well-being of the male population. It is anticipated that clinicians will continue to confront these cancers in their practice. Nanomedicine offers promising strategies that revolutionize the treatment of male pelvic malignancies by providing precise delivery methods that aim to improve the efficacy of therapeutic outcomes while minimizing side effects. Nanoparticles are designed to encapsulate therapeutic agents and selectively target cancer cells. They can also be loaded with theragnostic agents, enabling multifunctional capabilities. OBJECTIVE This review aims to summarize the latest nanomedicine research into clinical applications, focusing on nanotechnology-based treatment strategies for male pelvic malignancies, encompassing chemotherapy, radiotherapy, immunotherapy, and other cutting-edge therapies. The review is structured to assist physicians, particularly those with limited knowledge of biochemistry and bioengineering, in comprehending the functionalities and applications of nanomaterials. METHODS Multiple databases, including PubMed, the National Library of Medicine, and Embase, were utilized to locate and review recently published articles on advancements in nano-drug delivery for prostate and colorectal cancers. CONCLUSION Nanomedicine possesses considerable potential in improving therapeutic outcomes and reducing adverse effects for male pelvic malignancies. Through precision delivery methods, this emerging field presents innovative treatment modalities to address these challenging diseases. Nevertheless, the majority of current studies are in the preclinical phase, with a lack of sufficient evidence to fully understand the precise mechanisms of action, absence of comprehensive pharmacotoxicity profiles, and uncertainty surrounding long-term consequences.
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Affiliation(s)
- Guodong Yang
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Yu Cao
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Xinyi Yang
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Te Cui
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | | | - Yuen Kai Lim
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Yu Fu
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Xinren Cao
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Aanchal Bhandari
- HBT Medical College and Dr. R N Cooper Municipal General Hospital, Mumbai, India
| | - Mikhail Enikeev
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | - Sergey Efetov
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Vladimir Balaban
- Clinic of Coloproctology and Minimally Invasive Surgery, Sechenov University, Moscow, Russia
| | - Mingze He
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia.
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Alfonsín G, Berral-González A, Rodríguez-Alonso A, Quiroga M, De Las Rivas J, Figueroa A. Stratification of Colorectal Patients Based on Survival Analysis Shows the Value of Consensus Molecular Subtypes and Reveals the CBLL1 Gene as a Biomarker of CMS2 Tumours. Int J Mol Sci 2024; 25:1919. [PMID: 38339195 PMCID: PMC10856263 DOI: 10.3390/ijms25031919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/17/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
The consensus molecular subtypes (CMSs) classification of colorectal cancer (CRC) is a system for patient stratification that can be potentially applied to therapeutic decisions. Hakai (CBLL1) is an E3 ubiquitin-ligase that induces the ubiquitination and degradation of E-cadherin, inducing epithelial-to-mesenchymal transition (EMT), tumour progression and metastasis. Using bioinformatic methods, we have analysed CBLL1 expression on a large integrated cohort of primary tumour samples from CRC patients. The cohort included survival data and was divided into consensus molecular subtypes. Colon cancer tumourspheres were used to analyse the expression of stem cancer cells markers via RT-PCR and Western blotting. We show that CBLL1 gene expression is specifically associated with canonical subtype CMS2. WNT target genes LGR5 and c-MYC show a similar association with CMS2 as CBLL1. These mRNA levels are highly upregulated in cancer tumourspheres, while CBLL1 silencing shows a clear reduction in tumoursphere size and in stem cell biomarkers. Importantly, CMS2 patients with high CBLL1 expression displayed worse overall survival (OS), which is similar to that associated with CMS4 tumours. Our findings reveal CBLL1 as a specific biomarker for CMS2 and the potential of using CMS2 with high CBLL1 expression to stratify patients with poor OS.
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Affiliation(s)
- Gloria Alfonsín
- Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), 15006 A Coruña, Spain; (G.A.); (A.R.-A.); (M.Q.)
| | - Alberto Berral-González
- Bioinformatics and Functional Genomics Group, Cancer Research Center (CiC-IBMCC, CSIC/USAL & IBSAL), Consejo Superior de Investigaciones Cientificas (CSIC), University of Salamanca (USAL) and Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain;
| | - Andrea Rodríguez-Alonso
- Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), 15006 A Coruña, Spain; (G.A.); (A.R.-A.); (M.Q.)
| | - Macarena Quiroga
- Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), 15006 A Coruña, Spain; (G.A.); (A.R.-A.); (M.Q.)
| | - Javier De Las Rivas
- Bioinformatics and Functional Genomics Group, Cancer Research Center (CiC-IBMCC, CSIC/USAL & IBSAL), Consejo Superior de Investigaciones Cientificas (CSIC), University of Salamanca (USAL) and Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain;
| | - Angélica Figueroa
- Epithelial Plasticity and Metastasis Group, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), 15006 A Coruña, Spain; (G.A.); (A.R.-A.); (M.Q.)
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Soleimani A, Saeedi N, Al-Asady AM, Nazari E, Hanaie R, Khazaei M, Ghorbani E, Akbarzade H, Ryzhikov M, Avan A, Mehr SMH. Colorectal Cancer Stem Cell Biomarkers: Biological Traits and Prognostic Insights. Curr Pharm Des 2024; 30:1386-1397. [PMID: 38623972 DOI: 10.2174/0113816128291321240329050945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 03/08/2024] [Accepted: 03/13/2024] [Indexed: 04/17/2024]
Abstract
Due to self-renewal, differentiation, and limitless proliferation properties, Cancer Stem Cells (CSCs) increase the probability of tumor development. These cells are identified by using CSC markers, which are highly expressed proteins on the cell surface of CSCs. Recently, the therapeutic application of CSCs as novel biomarkers improved both the prognosis and diagnosis outcome of colorectal Cancer. In the present review, we focused on a specific panel of colorectal CSC markers, including LGR5, ALDH, CD166, CD133, and CD44, which offers a targeted and comprehensive analysis of their functions. The selection criteria for these markers cancer were based on their established significance in Colorectal Cancer (CRC) pathogenesis and clinical outcomes, providing novel insights into the CSC biology of CRC. Through this approach, we aim to elevate understanding and stimulate further research for developing effective diagnostic and therapeutic strategies in CRC.
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Affiliation(s)
- Atena Soleimani
- Department of Biochemistry, Mashhad University of Medical Sciences, Razavi Khorasan, Mashhad, Iran
| | - Nikoo Saeedi
- Medical School, Islamic Azad University, Mashhad, Iran
| | | | - Elnaz Nazari
- Department of Physiology, Mashhad University of Medical Sciences, Razavi Khorasan, Mashhad, Iran
| | - Reyhane Hanaie
- Department of Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Razavi Khorasan, Mashhad, Iran
| | - Majid Khazaei
- Department of Physiology, Mashhad University of Medical Sciences, Razavi Khorasan, Mashhad, Iran
| | - Elnaz Ghorbani
- Department of Microbiology, Mashhad University of Medical Sciences, Razavi Khorasan, Mashhad, Iran
| | - Hamed Akbarzade
- Department of Biochemistry, Mashhad University of Medical Sciences, Razavi Khorasan, Mashhad, Iran
| | - Mikhail Ryzhikov
- Department of Biochemistry, Saint Louis University, St. Louis, MO 63103, USA
| | - Amir Avan
- Department of Genetics, Mashhad University of Medical Sciences, Razavi Khorasan, Mashhad, Iran
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The molecular underpinning of geminin-overexpressing triple-negative breast cancer cells homing specifically to lungs. Cancer Gene Ther 2022; 29:304-325. [PMID: 33723406 DOI: 10.1038/s41417-021-00311-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/23/2021] [Accepted: 02/12/2021] [Indexed: 01/31/2023]
Abstract
Triple-negative breast cancer (TNBCs) display lung metastasis tropism. However, the mechanisms underlying this organ-specific pattern remains to be elucidated. We sought to evaluate the utility of blocking extravasation to prevent lung metastasis. To identify potential geminin overexpression-controlled genetic drivers that promote TNBC tumor homing to lungs, we used the differential/suppression subtractive chain (D/SSC) technique. A geminin overexpression-induced lung metastasis gene signature consists of 24 genes was discovered. We validated overexpression of five of these genes (LGR5, HAS2, CDH11, NCAM2, and DSC2) in worsening lung metastasis-free survival in TNBC patients. Our data demonstrate that LGR5-induced β-catenin signaling and stemness in TNBC cells are geminin-overexpression dependent. They also demonstrate for the first-time expression of RSPO2 in mouse lung tissue only and exacerbation of its secretion in the circulation of mice that develop geminin overexpressing/LGR5+-TNBC lung metastasis. We identified a novel extravasation receptor complex, consists of CDH11, CD44v6, c-Met, and AXL on geminin overexpressing/LGR5+-TNBC lung metastatic precursors, inhibition of any of its receptors prevented geminin overexpressing/LGR5+-TNBC lung metastasis. Overall, we propose that geminin overexpression in normal mammary epithelial (HME) cells promotes the generation of TNBC metastatic precursors that home specifically to lungs by upregulating LGR5 expression and promoting stemness, intravasation, and extravasation in these precursors. Circulating levels of RSPO2 and OPN can be diagnostic biomarkers to improve risk stratification of metastatic TNBC to lungs, as well as identifying patients who may benefit from therapy targeting geminin alone or in combination with any member of the newly discovered extravasation receptor complex to minimize TNBC lung metastasis.
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Pérez-Moreno P, Riquelme I, Brebi P, Roa JC. Role of lncRNAs in the Development of an Aggressive Phenotype in Gallbladder Cancer. J Clin Med 2021; 10:jcm10184206. [PMID: 34575316 PMCID: PMC8468232 DOI: 10.3390/jcm10184206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 08/25/2021] [Accepted: 08/28/2021] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNAs are sequences longer than 200 nucleotides that are involved in different normal and abnormal biological processes exerting their effect on proliferation and differentiation, among other cell features. Functionally, lncRNAs can regulate gene expression within the cells by acting at transcriptional, post-transcriptional, translational, or post-translational levels. However, in pathological conditions such as cancer, the expression of these molecules is deregulated, becoming elements that can help in the acquisition of tumoral characteristics in the cells that trigger carcinogenesis and cancer progression. Specifically, in gallbladder cancer (GBC), recent publications have shown that lncRNAs participate in the acquisition of an aggressive phenotype in cancer cells, allowing them to acquire increased malignant capacities such as chemotherapy resistance or metastasis, inducing a worse survival in these patients. Furthermore, lncRNAs are useful as prognostic and diagnostic biomarkers since they have been shown to be differentially expressed in tumor tissues and serum of individuals with GBC. Therefore, this review will address different lncRNAs that could be promoting malignant phenotypic characteristics in GBC cells and lncRNAs that may be useful as markers due to their capability to predict a poor prognosis in GBC patients.
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Affiliation(s)
- Pablo Pérez-Moreno
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago 8380000, Chile;
| | - Ismael Riquelme
- Institute of Biomedical Sciences, Faculty of Health Sciences, Universidad Autoónoma de Chile, Temuco 4810101, Chile;
| | - Priscilla Brebi
- Laboratory of Integrative Biology (LiBi), Centro de Excelencia en Medicina Translacional (CEMT), Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de la Frontera, Temuco 4810296, Chile;
| | - Juan Carlos Roa
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago 8380000, Chile;
- Correspondence: ; Tel.: +56-22354-1061
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Hervieu C, Christou N, Battu S, Mathonnet M. The Role of Cancer Stem Cells in Colorectal Cancer: From the Basics to Novel Clinical Trials. Cancers (Basel) 2021; 13:1092. [PMID: 33806312 PMCID: PMC7961892 DOI: 10.3390/cancers13051092] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/23/2021] [Accepted: 02/27/2021] [Indexed: 02/06/2023] Open
Abstract
The treatment options available for colorectal cancer (CRC) have increased over the years and have significantly improved the overall survival of CRC patients. However, the response rate for CRC patients with metastatic disease remains low and decreases with subsequent lines of therapy. The clinical management of patients with metastatic CRC (mCRC) presents a unique challenge in balancing the benefits and harms while considering disease progression, treatment-related toxicities, drug resistance and the patient's overall quality of life. Despite the initial success of therapy, the development of drug resistance can lead to therapy failure and relapse in cancer patients, which can be attributed to the cancer stem cells (CSCs). Thus, colorectal CSCs (CCSCs) contribute to therapy resistance but also to tumor initiation and metastasis development, making them attractive potential targets for the treatment of CRC. This review presents the available CCSC isolation methods, the clinical relevance of these CCSCs, the mechanisms of drug resistance associated with CCSCs and the ongoing clinical trials targeting these CCSCs. Novel therapeutic strategies are needed to effectively eradicate both tumor growth and metastasis, while taking into account the tumor microenvironment (TME) which plays a key role in tumor cell plasticity.
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Affiliation(s)
- Céline Hervieu
- EA 3842 CAPTuR “Control of Cell Activation in Tumor Progression and Therapeutic Resistance”, Faculty of Medicine, Genomics, Environment, Immunity, Health and Therapeutics (GEIST) Institute, University of Limoges, 87025 Limoges CEDEX, France; (C.H.); (N.C.); (S.B.)
| | - Niki Christou
- EA 3842 CAPTuR “Control of Cell Activation in Tumor Progression and Therapeutic Resistance”, Faculty of Medicine, Genomics, Environment, Immunity, Health and Therapeutics (GEIST) Institute, University of Limoges, 87025 Limoges CEDEX, France; (C.H.); (N.C.); (S.B.)
- Department of General, Endocrine and Digestive Surgery, University Hospital of Limoges, 87025 Limoges CEDEX, France
| | - Serge Battu
- EA 3842 CAPTuR “Control of Cell Activation in Tumor Progression and Therapeutic Resistance”, Faculty of Medicine, Genomics, Environment, Immunity, Health and Therapeutics (GEIST) Institute, University of Limoges, 87025 Limoges CEDEX, France; (C.H.); (N.C.); (S.B.)
| | - Muriel Mathonnet
- EA 3842 CAPTuR “Control of Cell Activation in Tumor Progression and Therapeutic Resistance”, Faculty of Medicine, Genomics, Environment, Immunity, Health and Therapeutics (GEIST) Institute, University of Limoges, 87025 Limoges CEDEX, France; (C.H.); (N.C.); (S.B.)
- Department of General, Endocrine and Digestive Surgery, University Hospital of Limoges, 87025 Limoges CEDEX, France
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The Expression Analysis of Intestinal Cancer Stem Cell Marker Lgr5 in Colorectal Cancer Patients and the Correlation with Histopathological Markers. J Gastrointest Cancer 2021; 51:591-599. [PMID: 31422541 DOI: 10.1007/s12029-019-00295-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Cancer stem cells (CSCs) have frequently been utilized in the cell characterization and identified responsible for tumor development, metastasis, recurrence, and chemoresistance. CSC surface markers function in cancer cell signaling and are indicated as potential biomarkers for cancer diagnosis and prognosis. As well, dysregulation of cancer-related signaling pathways could promote CSC development and progression. Our aim was to evaluate the expression of colorectal CSC markers and their correlation with cancer proliferation and angiogenesis. METHODS In this case-control study, total RNA was extracted from a total of 74 colorectal tumors and 74 adjacent normal tissue biopsies. Then, using a quantitative real-time PCR, the relative expression levels of Lgr5 and Lrig1 were measured in all malignant and healthy samples. Also, immunohistochemical (IHC) staining of tumor tissues was performed for Ki-67 (proliferation) and CD34 (angiogenesis) markers, and the immunoexpression staining scores were obtained. The diagnostic value of the genes was evaluated using receiver operating characteristic (ROC) curve. Possible correlation between CSC markers and immunohistochemical markers in CRC was analyzed by Pearson's correlation test and linear regression. RESULTS The expression level of Lgr5 in tumor samples showed a significant increase compared with normal samples (p < 0.001) with a fold change of 2.54 (± 0.182). However, there was no significant difference in the relative expression of Lrig1 gene in tissue samples of healthy subjects and patients. The analysis of the ROC showed an AUC of 0.92 for Lgr5 and sensitivity 80% and specificity 96%. Further analysis revealed a significant correlation between mRNA levels of Lgr5 and immunoexpression of Ki-67 (r2 = 0.680, p < 0.001). CONCLUSION The high expression levels of Lgr5 found in tumor tissues were correlated with histological parameters, indicating a significant role in CRC development and diagnosis.
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Correlation of clinicopathological features and LGR5 expression in colon adenocarcinoma. Ann Diagn Pathol 2020; 48:151587. [PMID: 32829068 DOI: 10.1016/j.anndiagpath.2020.151587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/30/2020] [Indexed: 12/24/2022]
Abstract
Colon cancer stem cells (CSCs) are closely related to tumorigenesis and treatment response, and LGR5 is currently the most robust and reliable CSC marker in colorectal cancer (CRC). However, LGR5 expression in CRC tumor budding (TB) is not well understood. We examined the clinicopathological and prognostic significance of LGR5 in CRC TB. LGR5 expression was evaluated by RNAscope, a newly developed RNA in situ hybridization technique, using a tissue microarray consisting of 55 patient samples of TB in colon adenocarcinoma (CA) selected from the medical archives at our hospital. Patients were stratified into negative and positive LGR5 expression groups. Tumor-infiltrating lymphocytes (TILs) and histological grade were lower in the LGR5-positive group compared with the LGR5-negative group (P = .0407 and P = .0436, respectively). There was no significant difference in overall survival between the LGR5-positive group and the LGR5-negative group (log-rank test, P = .6931). LGR5 expression did not remain a predictor of prognosis in univariate analysis (OR = 0.84, 95% CI: 0.33-2.02, P = .6928). LGR5 expression may be affected by TILs, which have been demonstrated to be associated with worse prognosis in the budding area of CA and is an important potential marker of prognosis.
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Ogasawara S, Uehara T, Nakajima T, Iwaya M, Maeno K, Tsuchiya S, Ota H, Ito KI. Correlation of Clinicopathological Features and LGR5 Expression in Triple-Negative Breast Cancer. Ann Diagn Pathol 2020; 46:151491. [PMID: 32163872 DOI: 10.1016/j.anndiagpath.2020.151491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 01/10/2020] [Accepted: 02/25/2020] [Indexed: 12/19/2022]
Abstract
LGR5 is the most robust known stem cell marker for gastrointestinal tumors, but there are few reports in breast cancer. Triple negative breast cancer (TNBC) is the most malignant subtype of breast cancer, and thus identification of new cancer stem cell populations in TNBC may help to identify targeted therapies. LGR5 expression was evaluated by RNAscope, a newly developed RNA in situ hybridization technique, using a tissue microarray consisting of 43 patient samples of TNBC selected from the medical archives at our hospital. Patients were stratified into negative and positive LGR5 expression groups. Tumor necrosis was greater in the LGR5-positive group compared with the LGR5-negative group (P = .026). Mitosis tended to show a high value in the LGR5-positive group compared with the LGR5-negative group (P = .0831), while stage tended to show a high stage in the LGR5-positive group compared with the LGR5-negative group (P = .0617). Cox proportional hazards models revealed that the LGR5-positive group (overall survival (OS) = 2.12; 95% CI: 2.12-2.12; P = 0.1575) had no relationship with OS. LGR5 expression is associated with tumor necrosis of TNBC and suggested higher malignant potential.
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Affiliation(s)
- Souya Ogasawara
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takeshi Uehara
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan.
| | - Tomoyuki Nakajima
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Mai Iwaya
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kazuma Maeno
- Division of Breast, Endocrine and Respiratory Surgery, Department of Surgery (II), , Shinshu University School of Medicine, Matsumoto, Japan
| | | | - Hiroyoshi Ota
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan; Department of Biomedical Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Ken-Ichi Ito
- Division of Breast, Endocrine and Respiratory Surgery, Department of Surgery (II), , Shinshu University School of Medicine, Matsumoto, Japan
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12
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Kuraishi Y, Uehara T, Kobayashi Y, Nakajima T, Watanabe T, Shimizu A, Ota H, Tanaka E. Correlation of clinicopathological features and leucine-rich repeat-containing G-protein-coupled receptor 5 expression in pancreatic ductal adenocarcinoma. Pathol Res Pract 2019; 215:152623. [PMID: 31543221 DOI: 10.1016/j.prp.2019.152623] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 08/25/2019] [Accepted: 09/05/2019] [Indexed: 12/13/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the most common form of pancreatic cancer. Previous studies have established leucine-rich repeat-containing G-protein-coupled receptor 5 (LGR5) as a cancer stem cell marker in gastrointestinal cancers. However, few reports have examined LGR5 in PDAC. Here we examined LGR5 expression and its clinicopathological significance in PDAC. We evaluated LGR5 expression in 78 PDAC patients who underwent surgical resection in our institution using RNAscope, a newly described RNA in situ hybridization technique. All 78 PDAC cases expressed LGR5 in cancer tissues, and LGR5 expression was prominent in the gland-forming part. LGR5 expression was significantly higher in patients with low histological grade (G1-G2) (p < 0.001) and early clinical stage (p = 0.004). Univariate analysis showed that low LGR5 expression (p = 0.034) was significantly associated with worse overall survival. However, LGR5 expression did not remain a predictor of prognosis in multivariate analysis (p = 0.639). All PDAC cases showed LGR5 expression to varying degrees, indicating LGR5 might be a cancer stem cell marker of PDAC, as in gastrointestinal cancer. Reduced LGR5 expression in tumor cells was associated with worse prognosis in PDAC. Further studies are required to elucidate the relationship between tumor progression and LGR5 expression in PDAC.
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Affiliation(s)
- Yasuhiro Kuraishi
- Department of Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takeshi Uehara
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan.
| | - Yukihiro Kobayashi
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tomoyuki Nakajima
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takayuki Watanabe
- Department of Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Akira Shimizu
- Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hiroyoshi Ota
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan; Department of Biomedical Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Eiji Tanaka
- Department of Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
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13
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Kazama S, Kishikawa J, Tanaka T, Hata K, Kawai K, Nozawa H, Ishihara S. Immunohistochemical Expression of CD133 and LGR5 in Ulcerative Colitis-associated Colorectal Cancer and Dysplasia. In Vivo 2019; 33:1279-1284. [PMID: 31280219 PMCID: PMC6689354 DOI: 10.21873/invivo.11600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND/AIM Cluster of differentiation 133 (CD133) and leu cine-rich orphan G-protein-coupled receptor 5 (LGR5) are the most putative stem cell markers for colorectal cancer (CRC), and are associated with poor prognosis of patients with CRC. However, the role of CD133 and LGR5 in the inflammation-dysplasia-carcinoma sequence has not been fully elucidated. We examined the expression of CD133 and LGR5 in ulcerative colitis-associated CRC (UC-CRC; n=20) and UC-associated colorectal dysplasia (n=16) by immunohistochemistry. RESULTS The rate of CD133-positive cases in UC-CRC was significantly higher than that in dysplasia (p=0.026), but that of LGR5 expression was not. Moreover, LGR5 expression was significantly positively associated with p53 expression (p=0.03), whereas CD133 expression positively correlated with p53 expression, but not significantly (p=0.10). CONCLUSION CD133 may play an important role in tumor development in the context of the inflammation-dysplasia-carcinoma sequence. LGR5-positive cancer stem cells may play a critical role in the development of UC-CRC, particularly upon loss of p53 function.
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Affiliation(s)
- Shinsuke Kazama
- Division of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Junko Kishikawa
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toshiaki Tanaka
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Keisuke Hata
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazushige Kawai
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroaki Nozawa
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Soichiro Ishihara
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Correlation of clinicopathological features and LGR5 expression in colon adenocarcinoma. Ann Diagn Pathol 2019; 40:161-165. [PMID: 31100646 DOI: 10.1016/j.anndiagpath.2019.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/02/2019] [Indexed: 01/16/2023]
Abstract
Colon cancer stem cells (CSCs) are closely related to tumorigenesis and treatment response, and LGR5 is currently the most robust and reliable CSC marker in colorectal cancer (CRC). However, LGR5 expression in CRC tumor budding (TB) is not well understood. We examined the clinicopathological and prognostic significance of LGR5 in CRC TB. LGR5 expression was evaluated by RNAscope, a newly developed RNA in situ hybridization technique, using a tissue microarray consisting of 55 patient samples of TB in colon adenocarcinoma (CA) selected from the medical archives at our hospital. Patients were stratified into negative and positive LGR5 expression groups. Inflammatory cell infiltration was weaker and histological grade was lower in the LGR5-positive group compared with the LGR5-negative group (P = 0.0407 and P = 0.0436, respectively). There was a significant difference in OS between the LGR5-positive group and LGR5-negative group (log-rank test, P = 0.0088). Cox proportional hazards models revealed that the LGR5-positive group (Overall survival (OS) = 0.37, 95% CI: 0.17-0.79, P = 0.0101) had better OS. LGR5 expression may be affected by inflammatory cell infiltration in the budding area of CA and is an important potential marker of prognosis.
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Marcucci F, Caserta CA, Romeo E, Rumio C. Antibody-Drug Conjugates (ADC) Against Cancer Stem-Like Cells (CSC)-Is There Still Room for Optimism? Front Oncol 2019; 9:167. [PMID: 30984612 PMCID: PMC6449442 DOI: 10.3389/fonc.2019.00167] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 02/25/2019] [Indexed: 01/06/2023] Open
Abstract
Cancer stem-like cells (CSC) represent a subpopulation of tumor cells with peculiar functionalities that distinguish them from the bulk of tumor cells, most notably their tumor-initiating potential and drug resistance. Given these properties, it appears logical that CSCs have become an important target for many pharma companies. Antibody-drug conjugates (ADC) have emerged over the last decade as one of the most promising new tools for the selective ablation of tumor cells. Three ADCs have already received regulatory approval and many others are in different phases of clinical development. Not surprisingly, also a considerable number of anti-CSC ADCs have been described in the literature and some of these have entered clinical development. Several of these ADCs, however, have yielded disappointing results in clinical studies. This is similar to the results obtained with other anti-CSC drug candidates, including native antibodies, that have been investigated in the clinic. In this article we review the anti-CSC ADCs that have been described in the literature and, in the following, we discuss reasons that may underlie the failures in clinical trials that have been observed. Possible reasons relate to the biology of CSCs themselves, including their heterogeneity, the lack of strictly CSC-specific markers, and the capacity to interconvert between CSCs and non-CSCs; second, inherent limitations of some classes of cytotoxins that have been used for the construction of ADCs; third, the inadequacy of animal models in predicting efficacy in humans. We conclude suggesting some possibilities to address these limitations.
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Affiliation(s)
- Fabrizio Marcucci
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | | | | | - Cristiano Rumio
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
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16
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Jang BG, Kim HS, Chang WY, Bae JM, Kim WH, Kang GH. Expression Profile of LGR5 and Its Prognostic Significance in Colorectal Cancer Progression. THE AMERICAN JOURNAL OF PATHOLOGY 2018; 188:2236-2250. [PMID: 30036518 DOI: 10.1016/j.ajpath.2018.06.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 06/12/2018] [Accepted: 06/19/2018] [Indexed: 02/07/2023]
Abstract
We investigated the expression profile of leucine-rich, repeat-containing, G-protein-coupled receptor 5 (LGR5) during colorectal cancer (CRC) progression and determined the prognostic impact of LGR5 in a large cohort of CRC samples. LGR5 expression was higher in CRCs than in normal mucosa, and was not associated with other cancer stem cell markers. LGR5 positivity was observed in 68% of 788 CRCs and was positively correlated with older age, moderately to well-differentiated cells, and nuclear β-catenin expression. Enhanced LGR5 expression remained persistent during the adenoma-carcinoma transition, but markedly declined in the budding cancer cells at the invasive fronts, which was not due to altered wingless-type mouse mammary tumor virus integration site family (Wnt) or epithelial-mesenchymal transition signaling. LGR5 showed negative correlations with microsatellite instability and CpG island methylator phenotype, and was not associated with KRAS or BRAF mutation. Notably, LGR5 positivity was an independent prognostic marker for better clinical outcomes in CRC patients. LGR5 overexpression attenuated tumor growth by decreasing ERK phosphorylation along with decreased colony formation and migration abilities in DLD1 cells. Likewise, knockdown of LGR5 expression resulted in a decline in the colony-forming and migration capacities in LoVo cells. Taken together, our data suggest a suppressive role of LGR5 in CRC progression.
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Affiliation(s)
- Bo Gun Jang
- Department of Pathology, Jeju National University School of Medicine, Jeju, Republic of Korea
| | - Hye Sung Kim
- Department of Pathology, Jeju National University School of Medicine, Jeju, Republic of Korea
| | - Weon Young Chang
- Department of General Surgery, Jeju National University School of Medicine, Jeju, Republic of Korea
| | - Jeong Mo Bae
- Department of Pathology, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Epigenetics, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Woo Ho Kim
- Department of Pathology, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Gyeong Hoon Kang
- Department of Pathology, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Epigenetics, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
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17
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Maisonneuve C, Irrazabal T, Martin A, Girardin SE, Philpott DJ. The Impact of the Gut Microbiome on Colorectal Cancer. ANNUAL REVIEW OF CANCER BIOLOGY-SERIES 2018. [DOI: 10.1146/annurev-cancerbio-030617-050240] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Charles Maisonneuve
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
| | - Thergiory Irrazabal
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
| | - Alberto Martin
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
| | - Stephen E. Girardin
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Dana J. Philpott
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
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18
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Harada Y, Kazama S, Morikawa T, Murono K, Yasuda K, Otani K, Nishikawa T, Tanaka T, Kiyomatsu T, Kawai K, Hata K, Nozawa H, Yamaguchi H, Ishihara S, Watanabe T. Leucine-rich repeat-containing G protein-coupled receptor 5 and CD133 expression is associated with tumor progression and resistance to preoperative chemoradiotherapy in low rectal cancer. Oncol Lett 2017; 14:7791-7798. [PMID: 29250176 PMCID: PMC5727605 DOI: 10.3892/ol.2017.7207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 10/03/2017] [Indexed: 12/15/2022] Open
Abstract
Preoperative chemoradiotherapy has been performed as a standard therapy for advanced low rectal cancer. Cancer stem cells (CSCs) have been reported to contribute to resistance to treatment and patient prognosis. Leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5) and cluster of differentiation (CD133) are putative markers for CSCs. However, their prognostic ability remains unknown, and evaluation of a single marker can be insufficient due to the heterogeneity of cancer. LGR5 and CD133 expression was immunohistochemically evaluated in surgical specimens of 56 patients who received curative resection following chemoradiotherapy for advanced low rectal cancer. In addition, the correlations between their expression levels, and clinicopathological features and patient prognosis were asessed. LGR5 expression was significantly correlated with lymphatic invasion, lymph node metastasis, and tumor node metastasic (TNM) stage. CD133 expression was significantly correlated with vascular invasion and the tumor regression grade. Combined expression was significantly correlated with lymphatic invasion, tumor regression grade and TNM stage, but not with overall, and disease-free survival. LGR5 and CD133 expressions may represent useful markers associated with tumor progression and resistance to chemoradiotherapy in patients with low rectal cancer. Furthermore, combined expression of these markers may be a more useful marker compared with the expression of each single marker.
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Affiliation(s)
- Yuzo Harada
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shinsuke Kazama
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Teppei Morikawa
- Department of Pathology, The University of Tokyo Hospital, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Koji Murono
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Koji Yasuda
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kensuke Otani
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takeshi Nishikawa
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Toshiaki Tanaka
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tomomichi Kiyomatsu
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazushige Kawai
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Keisuke Hata
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiroaki Nozawa
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hironori Yamaguchi
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Soichiro Ishihara
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Toshiaki Watanabe
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
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19
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Wahab SR, Islam F, Gopalan V, Lam AKY. The Identifications and Clinical Implications of Cancer Stem Cells in Colorectal Cancer. Clin Colorectal Cancer 2017; 16:93-102. [DOI: 10.1016/j.clcc.2017.01.011] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 11/16/2016] [Accepted: 01/13/2017] [Indexed: 12/18/2022]
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20
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The Induction of Selected Wnt Target Genes by Tcf1 Mediates Generation of Tumorigenic Colon Stem Cells. Cell Rep 2017; 19:981-994. [DOI: 10.1016/j.celrep.2017.04.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 02/28/2017] [Accepted: 04/05/2017] [Indexed: 12/26/2022] Open
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21
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Zhang F, Sun H, Zhang S, Yang X, Zhang G, Su T. Overexpression of PER3 Inhibits Self-Renewal Capability and Chemoresistance of Colorectal Cancer Stem-Like Cells via Inhibition of Notch and β-Catenin Signaling. Oncol Res 2016; 25:709-719. [PMID: 27983919 PMCID: PMC7841129 DOI: 10.3727/096504016x14772331883976] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
PER3, a circadian clock gene, plays an important role in colorectal cancer, but its action and underlying mechanism in colorectal cancer stem-like cells (CSCs) remain unclear. In this study, the colorectal CSCs were enriched in colorectal HCT-116 sphere-forming cells, expressing lower levels of stem cell markers CD133, CD44, LGR5, and SOX2 compared with HCT-116 cells. A drug-resistant strain from HCT-116 was established. Western blot and qRT-PCR analysis showed that PER3 was downregulated in colorectal CSCs and drug-resistant HCT-116. Overexpression of PER3 could strengthen 5-FU-induced inhibitory effects on colorectal CSCs, but knockdown of PER3 decreased its inhibition of colorectal CSCs. In addition, overexpression of PER3 in colorectal CSCs resulted in reduced colony formation efficiency in a soft agar medium and self-renewal efficiency. Inversely, knockdown of PER3 enhanced self-renewal of colorectal CSCs. Overexpression of PER3 decreased stemness markers and Notch1, Jagged1, β-catenin, c-Myc, and LGR5 in colorectal CSCs. When Notch or β-catenin signaling was inhibited, the chemoresistance and self-renewal capability of colorectal CSCs were decreased. It was confirmed that PER3 can reduce chemoresistance and self-renewal capability of colorectal CSCs via inhibition of Notch and β-catenin signaling. Our results reveal that PER3 plays a critical role in maintaining the stemness of colorectal CSCs and may be a promising target for elimination of CSCs.
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22
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Guan Q, Chen R, Yan H, Cai H, Guo Y, Li M, Li X, Tong M, Ao L, Li H, Hong G, Guo Z. Differential expression analysis for individual cancer samples based on robust within-sample relative gene expression orderings across multiple profiling platforms. Oncotarget 2016; 7:68909-68920. [PMID: 27634898 PMCID: PMC5356599 DOI: 10.18632/oncotarget.11996] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 08/09/2016] [Indexed: 11/25/2022] Open
Abstract
The highly stable within-sample relative expression orderings (REOs) of gene pairs in a particular type of human normal tissue are widely reversed in the cancer condition. Based on this finding, we have recently proposed an algorithm named RankComp to detect differentially expressed genes (DEGs) for individual disease samples measured by a particular platform. In this paper, with 461 normal lung tissue samples separately measured by four commonly used platforms, we demonstrated that tens of millions of gene pairs with significantly stable REOs in normal lung tissue can be consistently detected in samples measured by different platforms. However, about 20% of stable REOs commonly detected by two different platforms (e.g., Affymetrix and Illumina platforms) showed inconsistent REO patterns due to the differences in probe design principles. Based on the significantly stable REOs (FDR<0.01) for normal lung tissue consistently detected by the four platforms, which tended to have large rank differences, RankComp detected averagely 1184, 1335 and 1116 DEGs per sample with averagely 96.51%, 95.95% and 94.78% precisions in three evaluation datasets with 25, 57 and 58 paired lung cancer and normal samples, respectively. Individualized pathway analysis revealed some common and subtype-specific functional mechanisms of lung cancer. Similar results were observed for colorectal cancer. In conclusion, based on the cross-platform significantly stable REOs for a particular normal tissue, differentially expressed genes and pathways in any disease sample measured by any of the platforms can be readily and accurately detected, which could be further exploited for dissecting the heterogeneity of cancer.
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Affiliation(s)
- Qingzhou Guan
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - Rou Chen
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - Haidan Yan
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - Hao Cai
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - You Guo
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
- Department of Preventive Medicine, School of Basic Medicine Sciences, Gannan Medical University, Ganzhou, 341000, China
| | - Mengyao Li
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - Xiangyu Li
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - Mengsha Tong
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - Lu Ao
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - Hongdong Li
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - Guini Hong
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
| | - Zheng Guo
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Bioinformatics, Fujian Medical University, Fuzhou, 350001, China
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ALIZADEH-NAVAEI REZA, RAFIEI ALIREZA, ABEDIAN-KENARI SAEID, ASGARIAN-OMRAN HOSSEIN, VALADAN REZA, HEDAYATIZADEH-OMRAN AKBAR. Comparison of leucine-rich repeat-containing G protein-coupled receptor 5 expression in different cancer and normal cell lines. Biomed Rep 2016; 5:130-132. [PMID: 27347416 PMCID: PMC4907073 DOI: 10.3892/br.2016.684] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 05/04/2016] [Indexed: 02/05/2023] Open
Abstract
Evaluating the expression of leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5) may be useful for predicting the best models and achieving more accurate results in cancer research. Therefore, the aim of the present study was to analyze the LGR5 expression levels in different cell lines. Eight commonly used cell lines were assessed (COS-7, NIH3T3, HEK293, VERO, HeLa, BHK, HepG2 and AGS). All the cell lines were cultured in RPMI-1640 medium contain 10% fetal calf serum at 37°C in humidified conditions with 5% CO2. According to the western blotting results, LGR5 was expressed in all cell lines. Densitometry results of LGR5 expression in the different cell lines showed that high LGR5 expression levels were apparent in BHK, AGS, VERO and NIH3T3 cell lines compared with the other cell lines. The results indicate that for the normal and cancer cell lines, BNK and AGS may be a better choice, respectively, for in vitro cancer studies.
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Affiliation(s)
- REZA ALIZADEH-NAVAEI
- Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari 48175-861, Iran
| | - ALIREZA RAFIEI
- Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari 48175-861, Iran
- Correspondence to: Dr Alireza Rafiei, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari 48175-861, Iran, E-mail:
| | - SAEID ABEDIAN-KENARI
- Immunogenetic Research Center, Mazandaran University of Medical Sciences, Sari 48175-861, Iran
| | - HOSSEIN ASGARIAN-OMRAN
- Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari 48175-861, Iran
| | - REZA VALADAN
- Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari 48175-861, Iran
| | - AKBAR HEDAYATIZADEH-OMRAN
- Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari 48175-861, Iran
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24
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Jang BG, Lee BL, Kim WH. Prognostic significance of leucine-rich-repeat-containing G-protein-coupled receptor 5, an intestinal stem cell marker, in gastric carcinomas. Gastric Cancer 2016; 19:767-77. [PMID: 26386561 DOI: 10.1007/s10120-015-0543-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 09/07/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Cells expressing LGR5, an intestinal stem cell marker, have been suggested as cancer stem cells in human colon cancers. Previously, we discovered that LGR5-expressing cells exist in the gastric antrum and remarkably increase in number in intestinal metaplasia. In addition, most gastric adenomas contain abundant LGR5-expressing cells coexpressing intestinal stem cell signatures. However, LGR5 expression in gastric cancers (GCs) and its prognostic significance remain unknown. METHODS We examined the LGR5 expression in GC tissues by real time-PCR and RNA in situ hybridization, and analyzed its clinicopathological relevance and prognostic value. The effects of LGR5 on cancer cell proliferation and migration were assessed with an in vitro transfection technique. RESULTS LGR5 expression was significantly lower in GCs than in matched nontumorous gastric mucosa. RNA in situ hybridization on tissue microarrays showed that 7 % of GCs were positive for LGR5. LGR5 positivity was associated with old age, well to moderate differentiation, and nuclear β-catenin positivity. Although LGR5 did not show any prognostic significance for all GC cases, it was associated with poor survival in GCs with nuclear β-catenin expression. LGR5 expression was induced by transfection in GC cell lines with abnormal Wnt activation, which, however, showed no influence on the growth and migration of GC cells. CONCLUSION A small portion of GCs expressed LGR5. Although LGR5 was associated with poor survival in GCs with nuclear β-catenin, LGR5 expression in GC cells had no effects on the growth and migration, requiring a further study exploring a biological role of LGR5 in GCs.
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Affiliation(s)
- Bo Gun Jang
- Department of Pathology, Jeju National University Hospital, Jeju, Korea
| | - Byung Lan Lee
- Department of Anatomy, Seoul National University College of Medicine, 28 Yeongeon-dong, Jongno-gu, Seoul, 110-799, Korea
| | - Woo Ho Kim
- Department of Pathology, Seoul National University College of Medicine, 28 Yeongeon-dong, Jongno-gu, Seoul, 110-799, Korea.
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25
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Wnt Signaling in Cancer Stem Cell Biology. Cancers (Basel) 2016; 8:cancers8070060. [PMID: 27355964 PMCID: PMC4963802 DOI: 10.3390/cancers8070060] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/11/2016] [Accepted: 06/20/2016] [Indexed: 12/21/2022] Open
Abstract
Aberrant regulation of Wnt signaling is a common theme seen across many tumor types. Decades of research have unraveled the epigenetic and genetic alterations that result in elevated Wnt pathway activity. More recently, it has become apparent that Wnt signaling levels identify stem-like tumor cells that are responsible for fueling tumor growth. As therapeutic targeting of these tumor stem cells is an intense area of investigation, a concise understanding on how Wnt activity relates to cancer stem cell traits is needed. This review attempts at summarizing the intricacies between Wnt signaling and cancer stem cell biology with a special emphasis on colorectal cancer.
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26
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Gong X, Azhdarinia A, Ghosh SC, Xiong W, An Z, Liu Q, Carmon KS. LGR5-Targeted Antibody-Drug Conjugate Eradicates Gastrointestinal Tumors and Prevents Recurrence. Mol Cancer Ther 2016; 15:1580-90. [PMID: 27207778 DOI: 10.1158/1535-7163.mct-16-0114] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 04/23/2016] [Indexed: 12/14/2022]
Abstract
Gastrointestinal cancer is one of the leading causes of cancer-related mortality in men and women worldwide. The adult stem cell marker LGR5 (leucine-rich repeat-containing, G protein-coupled receptor 5) is highly expressed in a significant fraction of gastrointestinal tumors of the colon, liver, pancreas, and stomach, relative to normal tissues. LGR5 is located on the cell surface and undergoes rapid, constitutive internalization independent of ligand. Furthermore, LGR5-high cancer cells have been shown to exhibit the properties of tumor-initiating cells or cancer stem cells (CSC). On the basis of these attributes, we generated two LGR5-targeting antibody-drug conjugates (ADC) by tethering the tubulin-inhibiting cytotoxic drug monomethyl auristatin E to a highly specific anti-LGR5 mAb via a protease cleavable or noncleavable chemical linker and compared them in receptor binding, cell internalization, and cytotoxic efficacy in cancer cells. Here, we show that both ADCs bind LGR5 with high specificity and equivalent nanomolar affinity and rapidly internalize to the lysosomes of LGR5-expressing gastrointestinal cancer cells. The anti-LGR5 ADCs effectively induced cytotoxicity in LGR5-high gastrointestinal cancer cells, but not in LGR5-negative or -knockdown cancer cell lines. Overall, we demonstrate that the cleavable ADC exhibited higher potency in vitro and was able to eradicate tumors and prevent recurrence in a xenograft model of colon cancer. These findings provide preclinical evidence for the potential of LGR5-targeting ADCs as effective new therapeutics for the treatment and eradication of gastrointestinal tumors and CSCs with high LGR5 expression. Mol Cancer Ther; 15(7); 1580-90. ©2016 AACR.
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Affiliation(s)
- Xing Gong
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas
| | - Ali Azhdarinia
- Center for Molecular Imaging, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas
| | - Sukhen C Ghosh
- Center for Molecular Imaging, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas
| | - Wei Xiong
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas
| | - Zhiqiang An
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas
| | - Qingyun Liu
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas.
| | - Kendra S Carmon
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas.
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27
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Zhang Z, Dou M, Yao X, Tang H, Li Z, Zhao X. Potential Biomarkers in Diagnosis of Human Gastric Cancer. Cancer Invest 2016; 34:115-22. [PMID: 26934336 DOI: 10.3109/07357907.2015.1114122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The high incidence of gastric cancer (GC) and its consequent mortality rate severely threaten human's health. It is not frequently diagnosed until a relatively advanced stage. Surgery is the only potentially curative treatment. Thus, early screening and diagnosis are critical for patients with GC. The tumor marker assays used currently for detecting GC are simple and rapid, but the usage is limited by its low sensitivity and specificity. Here, we provide a brief description of some new potential markers and new biotechnological methods for the diagnosis of GC, hoping to find out more effective approaches for early detection of GC.
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Affiliation(s)
- Zhihao Zhang
- a College of Pharmaceutical Sciences, Southwest University , Chongqing , China
| | - Mengmeng Dou
- a College of Pharmaceutical Sciences, Southwest University , Chongqing , China
| | - Xiaofang Yao
- a College of Pharmaceutical Sciences, Southwest University , Chongqing , China
| | - Hao Tang
- a College of Pharmaceutical Sciences, Southwest University , Chongqing , China
| | - Zhubo Li
- a College of Pharmaceutical Sciences, Southwest University , Chongqing , China
| | - Xiaoyan Zhao
- a College of Pharmaceutical Sciences, Southwest University , Chongqing , China
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28
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Hardingham JE, Grover P, Winter M, Hewett PJ, Price TJ, Thierry B. Detection and Clinical Significance of Circulating Tumor Cells in Colorectal Cancer--20 Years of Progress. Mol Med 2015; 21 Suppl 1:S25-31. [PMID: 26605644 DOI: 10.2119/molmed.2015.00149] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 06/22/2015] [Indexed: 12/12/2022] Open
Abstract
Circulating tumor cells (CTC) may be defined as tumor- or metastasis-derived cells that are present in the bloodstream. The CTC pool in colorectal cancer (CRC) patients may include not only epithelial tumor cells, but also tumor cells undergoing epithelial-mesenchymal transition (EMT) and tumor stem cells. A significant number of patients diagnosed with early stage CRC subsequently relapse with recurrent or metastatic disease despite undergoing "curative" resection of their primary tumor. This suggests that an occult metastatic disease process was already underway, with viable tumor cells being shed from the primary tumor site, at least some of which have proliferative and metastatic potential and the ability to survive in the bloodstream. Such tumor cells are considered to be responsible for disease relapse in these patients. Their detection in peripheral blood at the time of diagnosis or after resection of the primary tumor may identify those early-stage patients who are at risk of developing recurrent or metastatic disease and who would benefit from adjuvant therapy. CTC may also be a useful adjunct to radiological assessment of tumor response to therapy. Over the last 20 years many approaches have been developed for the isolation and characterization of CTC. However, none of these methods can be considered the gold standard for detection of the entire pool of CTC. Recently our group has developed novel unbiased inertial microfluidics to enrich for CTC, followed by identification of CTC by imaging flow cytometry. Here, we provide a review of progress on CTC detection and clinical significance over the last 20 years.
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Affiliation(s)
- Jennifer E Hardingham
- Molecular Oncology Group, Haematology-Oncology Department, Basil Hetzel Institute, The Queen Elizabeth Hospital, Woodville, South Australia.,School of Medicine, University of Adelaide, South Australia.,Centre for Personalized Medicine, University of Adelaide, South Australia
| | - Phulwinder Grover
- Department of Surgery, The Queen Elizabeth Hospital, Woodville, South Australia
| | - Marnie Winter
- Ian Wark Research Institute, University of South Australia, Mawson Lakes, South Australia
| | - Peter J Hewett
- Department of Surgery, The Queen Elizabeth Hospital, Woodville, South Australia
| | - Timothy J Price
- School of Medicine, University of Adelaide, South Australia.,Medical Oncology, The Queen Elizabeth Hospital, Woodville, South Australia
| | - Benjamin Thierry
- Ian Wark Research Institute, University of South Australia, Mawson Lakes, South Australia
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29
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Jang BG, Kim HS, Kim KJ, Rhee YY, Kim WH, Kang GH. Distribution of intestinal stem cell markers in colorectal precancerous lesions. Histopathology 2015. [PMID: 26212207 DOI: 10.1111/his.12787] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AIMS Intestinal stem cell (ISC) markers such as LGR5, ASCL2, EPHB2 and OLFM4, and their clinical implications have been studied extensively in colorectal cancers (CRCs). However, little is known about their expression in precancerous lesions of CRCs. Here, we investigated the expression and distribution of ISC markers in serrated polyps and conventional adenomas. METHODS AND RESULTS Reverse transcription-polymerase chain reaction (RT-PCR) analysis revealed that all ISC markers were up-regulated significantly in conventional adenomas with low-grade dysplasia (CALGs) compared with other lesions. RNA in-situ hybridization confirmed that CALGs exhibited strong and diffuse expression of all ISC markers, which indicate a stem cell-like phenotype. However, normal colonic mucosa, hyperplastic polyps and sessile serrated adenomas harboured LGR5(+) cells that were confined to the crypt base and demonstrated an organized expression of ISC markers. Notably, in traditional serrated adenomas, expression of LGR5 and ASCL2 was localized to the ectopic crypts as in the normal crypts, but expression of EPHB2 and OLFM4 was distributed in a diffuse manner, which is suggestive of a progenitor-like features. CONCLUSIONS The expression and distribution profile of ISC markers possibly provides insights into the organization of stem and progenitor-like cells in each type of precancerous lesion of CRC.
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Affiliation(s)
- Bo Gun Jang
- Department of Pathology, Jeju National University Hospital, Jeju, South Korea
| | - Hye Sung Kim
- Department of Pathology, Jeju National University Hospital, Jeju, South Korea
| | - Kyung Ju Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, South Korea
| | - Ye-Young Rhee
- Department of Pathology, Seoul National University College of Medicine, Seoul, South Korea
| | - Woo Ho Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, South Korea
| | - Gyeong Hoon Kang
- Department of Pathology, Seoul National University College of Medicine, Seoul, South Korea.,Laboratory of Epigenetics, Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
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