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Yoshida C, Kadota K, Yamada K, Fujimoto S, Ibuki E, Ishikawa R, Haba R, Yajima T. CD44v6 downregulation as a prognostic factor for distant recurrence in resected stage I lung adenocarcinomas. Clin Exp Med 2023; 23:5191-5200. [PMID: 37743425 DOI: 10.1007/s10238-023-01185-z] [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: 03/11/2023] [Accepted: 08/30/2023] [Indexed: 09/26/2023]
Abstract
CD44 and CD44 variant isoforms have been reported as contributing factors to cancer progression. In this study, we aimed to assess whether CD44 and its variant isoforms were correlated with the prognostic factors for distant metastasis in stage I lung adenocarcinomas using tissue microarray and immunohistochemistry. In this single-center retrospective study, we analyzed the data of 490 patients with stage I lung adenocarcinoma resected between 1999 and 2016. We constructed tissue microarrays and performed immunohistochemistry for CD44s, CD44v6, and CD44v9. The risk of disease recurrence and its associations with clinicopathological risk factors were assessed. CD44v6 expression was significantly associated with recurrence. Patients with CD44v6-negative tumors had a significantly increased risk of developing distant recurrence than patients with CD44v6-positive tumors (5-year cumulative incidence of recurrence (CIR), 10.7% vs. 4.6%; P = 0.009). However, CD44v6-negative tumors were not associated with an increased risk of locoregional recurrence compared to CD44v6-positive tumors (5-year CIR, 6.0% vs. 4.0%; P = 0.39). The overall survival (OS) of patients with CD44v6-negative tumors was significantly lower than that of patients with CD44v6-positive tumors (5-year OS: 87% vs. 94%, P = 0.016). CD44v6-negative tumors were also associated with invasive tumor size and lymphovascular invasion. Even in stage I disease, tumors with negative-CD44v6 expression had more distant recurrences than those with positive-CD44v6 expression and were associated with poor prognosis in resected stage I lung adenocarcinomas. Thus, CD44v6 downregulation may be a prognostic factor for distant metastasis in stage I lung adenocarcinomas.
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Affiliation(s)
- Chihiro Yoshida
- Department of General Thoracic Surgery, Faculty of Medicine, Kagawa University, Kagawa, Japan
- Department of General Thoracic Surgery, Kochi Health Sciences Center, Kochi, Japan
| | - Kyuichi Kadota
- Department of Pathology, Faculty of Medicine, Shimane University, Shimane, Japan.
| | - Kaede Yamada
- Department of General Thoracic Surgery, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Syusuke Fujimoto
- Department of General Thoracic Surgery, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Emi Ibuki
- Department of Diagnostic Pathology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Ryou Ishikawa
- Department of Diagnostic Pathology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Reiji Haba
- Department of Diagnostic Pathology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Toshiki Yajima
- Department of General Thoracic Surgery, Faculty of Medicine, Kagawa University, Kagawa, Japan
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Hosseini A, Eghtedari AR, Mirzaei A, Babaheidarian P, Nekoufar S, Khademian N, Jamshidi K, Tavakoli-Yaraki M. The clinical significance of CD44v6 in malignant and benign primary bone tumors. BMC Musculoskelet Disord 2023; 24:607. [PMID: 37491225 PMCID: PMC10367246 DOI: 10.1186/s12891-023-06738-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 07/19/2023] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND The objective of this study was to assess the expression profile of CD44v6, a potential cancer stem cell marker, and its diagnostic and predictive significance in three distinct types of primary bone tumors. METHODS In this study, we utilized real-time qRT-PCR and immunohistochemistry to examine the gene and protein levels of CD44v6 in a total of 138 fresh bone tissues. This included 69 tumor tissues comprising osteosarcoma (N = 23), chondrosarcoma (N = 23), and GCT (N = 23), as well as 69 corresponding non-cancerous tumor margins. Furthermore, we investigated the circulating level of CD44v6 by isolating peripheral blood mononuclear cells from 92 blood samples. Among these, 69 samples were obtained from patients diagnosed with primary bone tumors, while the remaining 23 samples were from healthy donors. The primary objectives of our investigation were to assess the correlation between CD44v6 expression levels and clinic-pathological features of the patients, as well as to evaluate the diagnostic and predictive values of CD44v6 in this context. RESULTS In patients with osteosarcoma and chondrosarcoma tumors, both the gene and protein expression of CD44v6 were found to be significantly higher compared to the GCT group. Furthermore, the circulating level of CD44v6 was notably elevated in patients diagnosed with osteosarcoma and chondrosarcoma in comparison to the GCT group and patients with malignant tumor characteristics. Additionally, we observed a strong correlation between the gene and protein levels of CD44v6 and important tumor indicators such as tumor grade, metastasis, recurrence, and size at the tumor site. CD44v6 shows potential in differentiating patients with bone tumors from both control groups and tumor groups with severe and invasive characteristics from those with non-severe features. Importantly, the expression level of CD44v6 also demonstrated predictive value for determining tumor grade and the likelihood of recurrence. CONCLUSION CD44v6 is likely to play a role in the development of primary bone tumors and has the potential to serve as a diagnostic biomarker for bone cancer. However, to obtain more accurate and conclusive findings, further mechanistic investigations involving larger population samples are necessary.
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Affiliation(s)
- Ameinh Hosseini
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, P.O. Box: 1449614535, Tehran, Iran
| | - Amir Reza Eghtedari
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, P.O. Box: 1449614535, Tehran, Iran
| | - Alireza Mirzaei
- Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Pegah Babaheidarian
- Department of Pathology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Samira Nekoufar
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, P.O. Box: 1449614535, Tehran, Iran
| | - Narges Khademian
- Department of Clinical Biochemistry, School of Medicine, Tarbiat Modares University, Tehran, Iran
| | - Khodamorad Jamshidi
- Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Tavakoli-Yaraki
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, P.O. Box: 1449614535, Tehran, Iran.
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Ruan Y, Chen L, Xie D, Luo T, Xu Y, Ye T, Chen X, Feng X, Wu X. Mechanisms of Cell Adhesion Molecules in Endocrine-Related Cancers: A Concise Outlook. Front Endocrinol (Lausanne) 2022; 13:865436. [PMID: 35464064 PMCID: PMC9021432 DOI: 10.3389/fendo.2022.865436] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 03/09/2022] [Indexed: 11/13/2022] Open
Abstract
Chemotherapy is a critical treatment for endocrine-related cancers; however, chemoresistance and disease recurrence remain a challenge. The interplay between cancer cells and the tumor microenvironment via cell adhesion molecules (CAMs) promotes drug resistance, known as cell adhesion-mediated drug resistance (CAM-DR). CAMs are cell surface molecules that facilitate cell-to-cell or cell-to-extracellular matrix binding. CAMs exert an adhesion effect and trigger intracellular signaling that regulates cancer cell stemness maintenance, survival, proliferation, metastasis, epithelial-mesenchymal transition, and drug resistance. To understand these mechanisms, this review focuses on the role of CD44, cadherins, selectins, and integrins in CAM-DR in endocrine-related cancers.
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Affiliation(s)
- Yongsheng Ruan
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Yongsheng Ruan, ; Xuedong Wu,
| | - Libai Chen
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Danfeng Xie
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Tingting Luo
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yiqi Xu
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Tao Ye
- Department of Endocrinology, Affiliated Baoan Hospital of Shenzhen, Southern Medical University, Shenzhen, China
| | - Xiaona Chen
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoqin Feng
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xuedong Wu
- Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Yongsheng Ruan, ; Xuedong Wu,
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Yaghobi Z, Movassaghpour A, Talebi M, Abdoli Shadbad M, Hajiasgharzadeh K, Pourvahdani S, Baradaran B. The role of CD44 in cancer chemoresistance: A concise review. Eur J Pharmacol 2021; 903:174147. [PMID: 33961871 DOI: 10.1016/j.ejphar.2021.174147] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 04/28/2021] [Accepted: 04/30/2021] [Indexed: 12/14/2022]
Abstract
CD44 is a cell surface adhesion molecule, which is overexpressed on cancer stem cells. The interaction of CD44 with hyaluronan is responsible for tumor development, metastasis, and expression of the chemoresistant phenotype. The overexpression of CD44 impedes the cytotoxic effect of chemotherapy medications in various cancers. Therefore, the high expression of CD44 is associated with a poor prognosis in affected patients. This high expression of CD44 in various cancers has provided an ample opportunity for the treatment of patients with chemoresistant malignancy. This review aims to demonstrate the various cross-talk between CD44 and intracellular and extracellular factors and highlight its role in developing chemoresistant tumors in some troublesome cancers.
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Affiliation(s)
- Zohreh Yaghobi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aliakbar Movassaghpour
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Talebi
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | | | - Shiva Pourvahdani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Overexpression of p-Akt, p-mTOR and p-eIF4E proteins associates with metastasis and unfavorable prognosis in non-small cell lung cancer. PLoS One 2020; 15:e0227768. [PMID: 32023262 PMCID: PMC7001968 DOI: 10.1371/journal.pone.0227768] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/28/2019] [Indexed: 12/24/2022] Open
Abstract
The Akt (protein kinase B)/mammalian target of rapamycin (mTOR) pathway, which is dysregulated in various cancers, controls the assembly of eukaryotic translation initiation factor 4F (eIF4E) complex. However, whether aberrant expression of phosphorylated Akt (p-Akt), phosphorylated mTOR (p-mTOR) and phosphorylated eIF4E (p-eIF4E) is associated with clinicopathological characteristics in surgically resected non-small cell lung cancer (NSCLC) has been rarely reported. Here, we investigated expression of p-Akt, p-mTOR and p-eIF4E proteins in NSCLC by immunohistochemistry and evaluated their correlation with clinicopathological characteristics and prognostic significance. The results showed that the positive percentage of p-Akt, p-mTOR and p-eIF4E was higher in NSCLC. Additionally, p-mTOR and p-eIF4E was dramatically higher in lung adenocarcinoma (both P<0.05). Most importantly, NSCLC patients with lymph node metastasis had significantly elevated expression of p-Akt, p-mTOR and p-eIF4E (all P<0.05). Positive expression of p-Akt, and any positive expression of p-Akt, p-mTOR and p-eIF4E proteins were positively correlated with clinical stages (both P<0.05). Spearman’s rank correlation test revealed that expression of p-Akt was correlated with p-eIF4E and p-mTOR (r = 0.107, P = 0.047; r = 0.287, P<0.001, respectively). Also, p-eIF4E had positive correlation with p-mTOR (r = 0.265, P<0.001). Furthermore, NSCLC patients with increased expression of p-Akt, p-mTOR and p-eIF4E, and any positive expression of above three proteins had lower overall survival rates (all P<0.05). Multivariate Cox regression analysis further indicated thatp-eIF4E was an independent prognostic factor for NSCLC patients (P = 0.046). Taken together, overexpression of p-Akt, p-mTOR and p-eIF4E proteins is associated with metastasis and poor prognosis of NSCLC patients after surgical resection, and positive expression of p-eIF4E protein may act as an independent unfavorable prognostic biomarker for overall survival of NSCLC patients.
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Epithelial-To-Mesenchymal Transition Markers and CD44 Isoforms Are Differently Expressed in 2D and 3D Cell Cultures of Prostate Cancer Cells. Cells 2019; 8:cells8020143. [PMID: 30754655 PMCID: PMC6406374 DOI: 10.3390/cells8020143] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/04/2019] [Accepted: 02/08/2019] [Indexed: 12/24/2022] Open
Abstract
Three-dimensional (3D) cell cultures allow the mimic of functions of living tissues and provide key information encoded in tissue architecture. Considered the pivotal role of epithelial-to-mesenchymal transition (EMT) in carcinoma progression, including prostate cancer (PCa), we aimed at investigating the effect of the 3D arrangement on the expression of some key markers of EMT in cultured human prostate cancer (PCa) cells, to better understand PCa cell behavior. PC3 and DU145 PCa cells were cultured in RPMI cell culture medium either in 2D-monolayers or in 3D-spheroids. The main EMT markers E-cadherin, N-cadherin, α-smooth muscle actin (αSMA), vimentin, Snail, Slug, Twist and Zeb1 were evaluated by confocal microscopy, real-time PCR and Western blot. Confocal microscopy revealed that E-cadherin was similarly expressed at the cell boundaries on the plasma membrane of PCa cells grown in 2D-monolayers, as well as in 3D-spheroids, but resulted up-regulated in 3D-spheroids, compared to 2D-monolayers, at the mRNA and protein level. Moreover, markers of the mesenchymal phenotype were expressed at very low levels in 3D-spheroids, suggesting important differences in the phenotype of PCa cells grown in 3D-spheroids or in 2D-monolayers. Considered as a whole, our findings contribute to a clarification of the role of EMT in PCa and confirm that a 3D cell culture model could provide deeper insight into the understanding of the biology of PCa.
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Multilayered Heterogeneity of Glioblastoma Stem Cells: Biological and Clinical Significance. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1139:1-21. [DOI: 10.1007/978-3-030-14366-4_1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Qiao GL, Song LN, Deng ZF, Chen Y, Ma LJ. Prognostic value of CD44v6 expression in breast cancer: a meta-analysis. Onco Targets Ther 2018; 11:5451-5457. [PMID: 30233206 PMCID: PMC6129017 DOI: 10.2147/ott.s156101] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Purpose The prognostic value and clinical significance of CD44 variant isoform v6 (CD44v6) in breast cancer remains controversial. Our study aimed to generalize the correlation between CD44v6 expression and clinicopathological features and prognosis in breast cancer by using a meta-analysis. Methods We performed a comprehensive search of relevant literature from PubMed, Cochrane Database, and EMBASE database that were published before January 2018. The pooled ORs and HRs with 95% CIs were used to estimate the effects. Results Thirteen articles comprising 1,458 patients were included for analysis. The results revealed that CD44v6 expression was associated with histological grade (overall: OR=1.56, 95% CI [1.06, 2.29], P=0.023; Asian: OR=1.78, 95% CI [1.12, 2.85], P=0.016) and lymph node metastasis (overall: OR=1.96, 95% CI [1.01, 3.78], P=0.046; Asian: OR=2.11, 95% CI [1.00, 4.44], P=0.049). CD44v6 expression was significantly associated with poor prognosis in patients with breast cancer (overall survival: overall: HR=1.55, 95% CI [1.09, 2.22], P=0.015; Asian: HR=2.22, 95% CI [1.34, 3.68], P=0.002). Conclusion Our meta-analysis demonstrates that CD44v6 is significantly associated with poor prognosis, histological grade, and lymph node metastasis in breast cancer patients, especially among Asian patients.
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Affiliation(s)
- Guang-Lei Qiao
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,
| | - Li-Na Song
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,
| | - Zhou-Feng Deng
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,
| | - Ying Chen
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,
| | - Li-Jun Ma
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,
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Zhang HF, Hu P, Fang SQ. Understanding the role of CD44V6 in ovarian cancer. Oncol Lett 2017; 14:1989-1992. [PMID: 28789431 PMCID: PMC5530090 DOI: 10.3892/ol.2017.6377] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 03/10/2017] [Indexed: 01/11/2023] Open
Abstract
This study examined the association of CD44V6 expression in ovarian cancer. We recruited 38 patients with ovarian cancer, 23 with benign ovarian tumor, and 20 with normal ovaries using RT-PCR and western block analysis. Compared with normal ovaries, the expression of CD44V6 mRNA was significantly elevated in benign ovarian tumor and ovarian cancer. At the protein level, we found no significant differences in CD44V6 expression between normal ovarian tissue and benign ovarian tumor. However, the expression of CD44V6 in ovarian cancer was significantly elevated compared to normal ovaries and benign ovarian tumor. These results were supported by ELISA and western blot analysis. Immunohistochemistry showed that CD44V6 protein in ovarian cancer cells accumulated at high levels on the membrane of ovarian cancer cells. CD44V6 expression is closely associated with the tumorous transformation of ovarian tissue, suggesting that CD44V6 can promote the occurrence and progression of ovarian cancer.
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Affiliation(s)
- Hui-Feng Zhang
- Department of Gynecologic Oncology, Hubei Cancer Hospital, Wuhan, Hubei 430070, P.R. China
| | - Peng Hu
- Department of Gynecologic Oncology, Hubei Cancer Hospital, Wuhan, Hubei 430070, P.R. China
| | - Sheng-Quan Fang
- Department of Gynecologic Oncology, Hubei Cancer Hospital, Wuhan, Hubei 430070, P.R. China
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Zhang Y, Lun L, Zhu B, Wang Q, Ding C, Hu Y, Huang W, Zhou L, Chen X, Huang H. Diagnostic accuracy of CD44V6 for osteosarcoma: a meta-analysis. J Orthop Surg Res 2016; 11:133. [PMID: 27809879 PMCID: PMC5094028 DOI: 10.1186/s13018-016-0470-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 10/08/2016] [Indexed: 11/23/2022] Open
Abstract
Background Recently, more and more evidences have revealed the association between CD44V6 and osteosarcoma (OS), but whether it can be used as a clinical biomarker is still unknown. The purpose of this study is to assess the diagnostic value of CD44V6 in OS by conducting a meta-analysis. Methods All relevant electronic literatures were collected from seven international databases together with three Chinese databases up to April 23, 2016. Eligible studies were selected through multiple search strategies and the quality was assessed by QUADAS. Data was extracted from studies according to the key statistics index. All analyses were performed using STATA 12 and Meta-DiSc 1.4 statistical software. Results According to the exclusion and inclusion criteria, 8 literatures were retrieved, accounting for 463 cases and 188 controls. For discriminating OS from benign bone tumor or healthy controls, the area under the receiver operating characteristic curve (AUC) was 0.91 (95 % CI 0.88–0.93). Overall, the results showed pooled sensitivity of 0.743 (95 % CI 0.606–0.844) and specificity of 0.897 (95 % CI 0.818–0.945), respectively. Substantial heterogeneity was detected in this study (I2 = 90 %). The publication bias was assessed by using Deeks’ asymmetry test (p = 0.795). No evidence of heterogeneity from threshold effects was detected by the Spearman correlation coefficient (−0.506, p = 0.201). Meta-regression was performed to mining the source of heterogeneity, and subgroup analysis showed that neither the cut-off values nor the control groups were the source of heterogeneity. Conclusions The present results suggest that promoted CD44V6 expression levels are associated with OS and CD44V6 may be used as a diagnostic marker for OS.
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Affiliation(s)
- Yunyuan Zhang
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Limin Lun
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Baozhi Zhu
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Qing Wang
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Chunming Ding
- Department of Orthopedic Surgery, Qingdao Municipal Hospital, Qingdao, 266011, People's Republic of China
| | - Yanlin Hu
- Department of Trauma Surgery, The Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Weili Huang
- Department of Infection Control, The Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Lan Zhou
- College of Laboratory Medicine, Key Laboratory of Laboratory Medical Diagnostics designated by Chinese Ministry of Education, Chongqing Medical University, Chongqing, 400016, China
| | - Xian Chen
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China.
| | - Hai Huang
- Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, 550004, Guizhou Province, China. .,Department of Clinical Biochemistry, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou Province, China.
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Bellerby R, Smith C, Kyme S, Gee J, Günthert U, Green A, Rakha E, Barrett-Lee P, Hiscox S. Overexpression of Specific CD44 Isoforms Is Associated with Aggressive Cell Features in Acquired Endocrine Resistance. Front Oncol 2016; 6:145. [PMID: 27379207 PMCID: PMC4913094 DOI: 10.3389/fonc.2016.00145] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/27/2016] [Indexed: 12/23/2022] Open
Abstract
While endocrine therapy is the mainstay of ER+ breast cancer, the clinical effectiveness of these agents is limited by the phenomenon of acquired resistance that is associated with disease relapse and poor prognosis. Our previous studies revealed that acquired resistance is accompanied by a gain in cellular invasion and migration and also that CD44 family proteins are overexpressed in the resistant phenotype. Given the association of CD44 with tumor progression, we hypothesized that its overexpression may act to promote the aggressive behavior of endocrine-resistant breast cancers. Here, we have investigated further the role of two specific CD44 isoforms, CD44v3 and CD44v6, in the endocrine-resistant phenotype. Our data revealed that overexpression of CD44v6, but not CD44v3, in endocrine-sensitive MCF-7 cells resulted in a gain in EGFR signaling, enhanced their endogenous invasive capacity, and attenuated their response to endocrine treatment. Suppression of CD44v6 in endocrine-resistant cell models was associated with a reduction in their invasive capacity. Our data suggest that upregulation of CD44v6 in acquired resistant breast cancer may contribute to a gain in the aggressive phenotype of these cells and loss of endocrine response through transactivation of the EGFR pathway. Future therapeutic targeting of CD44v6 may prove to be an effective strategy alongside EGFR-targeted agents in delaying/preventing acquired resistance in breast cancer.
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Affiliation(s)
- Rebecca Bellerby
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University , Cardiff , UK
| | - Chris Smith
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University , Cardiff , UK
| | - Sue Kyme
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University , Cardiff , UK
| | - Julia Gee
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University , Cardiff , UK
| | - Ursula Günthert
- Institute of Pathology, University Hospital of Basel , Basel , Switzerland
| | - Andy Green
- Faculty of Medicine and Health Sciences, University of Nottingham , Nottingham , UK
| | - Emad Rakha
- Faculty of Medicine and Health Sciences, University of Nottingham , Nottingham , UK
| | | | - Stephen Hiscox
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University , Cardiff , UK
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Afify A, Durbin-Johnson B, Virdi A, Jess H. The expression of CD44v6 in colon: from normal to malignant. Ann Diagn Pathol 2016; 20:19-23. [DOI: 10.1016/j.anndiagpath.2015.10.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/09/2015] [Accepted: 10/21/2015] [Indexed: 02/07/2023]
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Yan Y, Zuo X, Wei D. Concise Review: Emerging Role of CD44 in Cancer Stem Cells: A Promising Biomarker and Therapeutic Target. Stem Cells Transl Med 2015; 4:1033-43. [PMID: 26136504 DOI: 10.5966/sctm.2015-0048] [Citation(s) in RCA: 441] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 05/26/2015] [Indexed: 12/12/2022] Open
Abstract
UNLABELLED The reception and integration of the plethora of signals a cell receives from its microenvironment determines the cell's fate. CD44 functions as a receptor for hyaluronan and many other extracellular matrix components, as well as a cofactor for growth factors and cytokines, and thus, CD44 is a signaling platform that integrates cellular microenvironmental cues with growth factor and cytokine signals and transduces signals to membrane-associated cytoskeletal proteins or to the nucleus to regulate a variety of gene expression levels related to cell-matrix adhesion, cell migration, proliferation, differentiation, and survival. Accumulating evidence indicates that CD44, especially CD44v isoforms, are cancer stem cell (CSC) markers and critical players in regulating the properties of CSCs, including self-renewal, tumor initiation, metastasis, and chemoradioresistance. Furthermore, there is ample evidence that CD44, especially CD44v isoforms, are valuable prognostic markers in various types of tumors. Therefore, therapies that target CD44 may destroy the CSC population, and this holds great promise for the cure of life-threatening cancers. However, many challenges remain to determining how best to use CD44 as a biomarker and therapeutic target. Here we summarize the current findings concerning the critical role of CD44/CD44v in the regulation of cancer stemness and the research status of CD44/CD44v as biomarkers and therapeutic targets in cancer. We also discuss the current challenges and future directions that may lead to the best use of CD44/CD44v for clinical applications. SIGNIFICANCE Mounting evidence indicates that cancer stem cells (CSCs) are mainly responsible for cancer aggressiveness, drug resistance, and tumor relapse. CD44, especially CD44v isoforms, have been identified as CSC surface markers for isolating and enriching CSCs in different types of cancers. The current findings concerning the critical role of CD44/CD44v in regulation of cancer stemness and the research status of CD44/CD44v as biomarkers and therapeutic targets in cancer are summarized. The current challenges and future directions that may lead to best use of CD44/CD44v for clinical applications are also discussed.
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Affiliation(s)
- Yongmin Yan
- Departments of Gastroenterology, Hepatology & Nutrition and Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA; School of Medical Sciences and Laboratory Medicine, Jiangsu University, Zhenjiang, People's Republic of China
| | - Xiangsheng Zuo
- Departments of Gastroenterology, Hepatology & Nutrition and Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA; School of Medical Sciences and Laboratory Medicine, Jiangsu University, Zhenjiang, People's Republic of China
| | - Daoyan Wei
- Departments of Gastroenterology, Hepatology & Nutrition and Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA; School of Medical Sciences and Laboratory Medicine, Jiangsu University, Zhenjiang, People's Republic of China
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Bahrami-Samani E, Vo DT, de Araujo PR, Vogel C, Smith AD, Penalva LOF, Uren PJ. Computational challenges, tools, and resources for analyzing co- and post-transcriptional events in high throughput. WILEY INTERDISCIPLINARY REVIEWS. RNA 2015; 6:291-310. [PMID: 25515586 PMCID: PMC4397117 DOI: 10.1002/wrna.1274] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 10/24/2014] [Accepted: 10/29/2014] [Indexed: 11/10/2022]
Abstract
Co- and post-transcriptional regulation of gene expression is complex and multifaceted, spanning the complete RNA lifecycle from genesis to decay. High-throughput profiling of the constituent events and processes is achieved through a range of technologies that continue to expand and evolve. Fully leveraging the resulting data is nontrivial, and requires the use of computational methods and tools carefully crafted for specific data sources and often intended to probe particular biological processes. Drawing upon databases of information pre-compiled by other researchers can further elevate analyses. Within this review, we describe the major co- and post-transcriptional events in the RNA lifecycle that are amenable to high-throughput profiling. We place specific emphasis on the analysis of the resulting data, in particular the computational tools and resources available, as well as looking toward future challenges that remain to be addressed.
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Affiliation(s)
- Emad Bahrami-Samani
- Molecular and Computational Biology, Department of Biological Sciences, University of Southern California, Los Angeles, CA
| | - Dat T. Vo
- Children’s Cancer Research Institute and Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX
| | - Patricia Rosa de Araujo
- Children’s Cancer Research Institute and Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX
| | - Christine Vogel
- Center for Genomics and Systems Biology, Department of Biology, New York University, New York, NY
| | - Andrew D. Smith
- Molecular and Computational Biology, Department of Biological Sciences, University of Southern California, Los Angeles, CA
| | - Luiz O. F. Penalva
- Children’s Cancer Research Institute and Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX
| | - Philip J. Uren
- Molecular and Computational Biology, Department of Biological Sciences, University of Southern California, Los Angeles, CA
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Alternative CD44 splicing identifies epithelial prostate cancer cells from the mesenchymal counterparts. Med Oncol 2015; 32:159. [PMID: 25850653 PMCID: PMC4391735 DOI: 10.1007/s12032-015-0593-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 03/16/2015] [Indexed: 12/21/2022]
Abstract
An epithelial to mesenchymal transition (EMT) has been shown to be a necessary precursor to prostate cancer metastasis. Additionally, the differential expression and splicing of mRNAs has been identified as a key means to distinguish epithelial from mesenchymal cells by qPCR, western blotting and immunohistochemistry. However, few markers exist to differentiate between these cells by flow cytometry. We previously developed two cell lines, PC3-Epi (epithelial) and PC3-EMT (mesenchymal). RNAseq was used to determine the differential expression of membrane proteins on PC3-Epi/EMT. We used western blotting, qPCR and flow cytometry to validate the RNAseq results. CD44 was one of six membrane proteins found to be differentially spliced between epithelial and mesenchymal PC3 cells. Although total CD44 was positive in all PC3-Epi/EMT cells, PC3-Epi cells had a higher level of CD44v6 (CD44 variant exon 6). CD44v6 was able to differentiate epithelial from mesenchymal prostate cancer cells using either flow cytometry, western blotting or qPCR.
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The prognostic value of phosphorylated Akt in breast cancer: a systematic review. Sci Rep 2015; 5:7758. [PMID: 25582346 PMCID: PMC4291578 DOI: 10.1038/srep07758] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 12/11/2014] [Indexed: 01/07/2023] Open
Abstract
The prognostic value of phosphorylated Akt (pAkt) overexpression in breast cancer has been investigated by many studies with inconsistent results. This systematic review was conducted to evaluate the association of pAkt overexpression with breast cancer prognosis in terms of overall survival and disease-free survival. Three electronic databases (PubMed, EMBASE and Chinese Biomedical Literature Database) were comprehensively searched. Hazard ratios (HRs) with 95% confidence intervals (CIs) from different studies were combined using the random-effects model. In total, 33 studies with 9,836 patients were included for final analysis. The summary HR for overall survival and disease-free survival was 1.52 (95% CI: 1.29-1.78) and 1.28 (95% CI: 1.13-1.45), respectively, indicating higher risk of death and disease recurrence associated with pAkt overexpression. The results were robust in sensitivity analyses by omitting one study each time and by using the fixed-effects model instead. Subgroup and meta-regression analyses did not show that the prognostic effect of pAkt overexpression would change materially with such factors as population, status of hormone receptors, hormonal or trastuzumab treatment given, analyzing method (univariate versus multivariate) and methodological quality of the original studies. In conclusion, the available evidence suggests that pAkt overexpression is an adverse prognostic factor for breast cancer.
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Cai TT, Yan LP, Li H, Shi XP, Liang Y, Shen MR. Antitumor effects of cisplatin implants against human gastric cancer in nude mice. Shijie Huaren Xiaohua Zazhi 2014; 22:2817-2825. [DOI: 10.11569/wcjd.v22.i20.2817] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To assess the antitumor effects of cisplatin implants vs common cisplatin injection in a xenograft nude mouse model of human gastric cancer.
METHODS: A xenograft nude mouse model of human gastric cancer was established by subcutaneously injecting SGC7901 cells in Balb/c nude mice. The model mice were divide into four groups randomly: A (intravenous injection of PBS via the tail vein), B (intravenous injection of cisplatin via the tail vein), C (intratumor injection of cisplatin), and D (cisplatin implantation). After drug intervention, tumor weight and volume were calculated. Tumor tissues were observed by HE staining. The protein expression of spleen tyrosine kinase (SYK)/human epidermal growth factor receptor 2 (HER2), phosphate and tension homology deleted on chromsome ten (PTEN)/the sixth variant form of adhesion molecule CD44 (CD44v6) and cysteinyl aspartate specific protease 3 (Caspase3)/Survivin in tumor tissue was detected by immunohistochemistry. Cell apoptosis was detected by flow cytometry.
RESULTS: Sustained-release cisplatin significantly promoted apoptosis, suppressed tumor growth, enhanced the expression of SYK (group D: 73.42 ± 4.92 vs group C: 30.42 ± 3.92, P < 0.05; group B: 14.14 ± 2.84 vs group A: 5.06 ± 2.96, P < 0.05), PTEN (group D: 62.46 ± 4.36 vs group C: 29.82 ± 2.22, P < 0.05; group B: 16.06 ± 4.26 vs group A: 6.44 ± 2.84, P < 0.05) and Caspase3 (group D: 77.58 ± 6.28 vs group C: 31.26 ± 4.76, P < 0.05; group B: 15.24 ± 4.64 vs group A: 10.82 ± 2.72, P < 0. 05), and reduced the expression of HER2 (group D: 16.32 ± 4.82 vs group C: 34.82 ± 7.32, P < 0.05; group B: 45.8 ± 6.60 vs group A: 77.34 ± 9.04, P < 0.05), CD44v6 (group D: 4.60 ± 1.40 vs group C: 10.32 ± 1.72, P < 0.05; group B: 28.10 ± 5.60 vs group A: 69.02 ± 1.52, P < 0.05) and Survivin (group D: 18.42 ± 4.62 vs group C: 31.3 ± 9.50, P < 0.05; group B: 69.66 ± 9.46 vs group A: 84.64 ± 5.04, P < 0.05).
CONCLUSION: Cisplatin implants exert anticancer effects against human gastric cancer in nude mice by promoting apoptosis and altering the expression of SYK, PTEN, Caspase3, HER2, CD44v6, and Survivin.
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Yang H, Liu J, Yu H, Sun P, Hu Y, Zhong J, Zhu Z. Expression and association of CD44v6 with prognosis in T2-3N0M0 esophageal squamous cell carcinoma. J Thorac Dis 2014; 6:91-8. [PMID: 24605222 DOI: 10.3978/j.issn.2072-1439.2013.11.16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 11/21/2013] [Indexed: 12/18/2022]
Abstract
AIM To investigate the expression of CD44v6 in stage T2-3N0M0 esophageal squamous cell carcinoma (ESCC) and its prognostic significance. METHODS The expression of CD44v6 in a series of 227 ESCC specimens was evaluated by immunohistochemistry (IHC). A reproducible semiquantitative method which took both staining percentage and intensity into account was applied for IHC scoring, and receiver operating characteristic (ROC) curve analysis was utilized to select the cut-off score for high or low IHC reactivity. Then, the correlations of CD44v6 expression with clinicopathological features of patients and its prognostic relevance were determined. RESULTS In the present study, the proportion of low CD44v6 expression was found significantly lower in Grade 3 of ESCC, than that of Grade 1 and Grade 2 of ESCC. There are no significant correlations between CD44v6 expression and other clinicopathological parameters including gender, age, tumor size, tumor location, depth of invasion and pathological stage. The Kaplan-Meier survival curves showed that up-regulated expression of CD44v6 indicated a poorer post-operative survival for ESCC patients of stage T2-3N0M0 (P=0.009), especially for those with T2 lesions (P=0.044) or with stage IIB diseases (P=0.005). Multivariate analysis also confirmed that CD44v6 expression [relative risk, 1.639; 95% confidence interval (CI): 1.142-2.354, P=0.007] and depth of invasion (relative risk, 1.487; 95% CI: 1.063-2.080, P=0.020) were independent prognostic factors. CONCLUSIONS Elevated CD44v6 expression may be an adverse prognostic indicator for patients with stage T2-3N0M0 ESCC, especially for those with T2 lesions or stage IIB diseases.
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Affiliation(s)
- Han Yang
- 1 Department of Thoracic Surgery, 2 Department of Medical Oncology, Sun Yat-Sen University Cancer Center; State Key Laboratory of Oncology in South China ; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Junling Liu
- 1 Department of Thoracic Surgery, 2 Department of Medical Oncology, Sun Yat-Sen University Cancer Center; State Key Laboratory of Oncology in South China ; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Hui Yu
- 1 Department of Thoracic Surgery, 2 Department of Medical Oncology, Sun Yat-Sen University Cancer Center; State Key Laboratory of Oncology in South China ; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Peng Sun
- 1 Department of Thoracic Surgery, 2 Department of Medical Oncology, Sun Yat-Sen University Cancer Center; State Key Laboratory of Oncology in South China ; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Yi Hu
- 1 Department of Thoracic Surgery, 2 Department of Medical Oncology, Sun Yat-Sen University Cancer Center; State Key Laboratory of Oncology in South China ; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Jiudi Zhong
- 1 Department of Thoracic Surgery, 2 Department of Medical Oncology, Sun Yat-Sen University Cancer Center; State Key Laboratory of Oncology in South China ; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Zhihua Zhu
- 1 Department of Thoracic Surgery, 2 Department of Medical Oncology, Sun Yat-Sen University Cancer Center; State Key Laboratory of Oncology in South China ; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
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Dan T, Hewitt SM, Ohri N, Ly D, Soule BP, Smith SL, Matsuda K, Council C, Shankavaram U, Lippman ME, Mitchell JB, Camphausen K, Simone NL. CD44 is prognostic for overall survival in the NCI randomized trial on breast conservation with 25 year follow-up. Breast Cancer Res Treat 2013; 143:11-8. [PMID: 24276281 DOI: 10.1007/s10549-013-2758-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Accepted: 10/28/2013] [Indexed: 12/18/2022]
Abstract
CD44 is a transmembrane glycoprotein involved in numerous cellular functions, including cell adhesion and extracellular matrix interactions. It is known to be functionally diverse, with alternative splice variants increasingly implicated as a marker for tumor-initiating stem cells associated with poor prognosis. Here, we evaluate CD44 as a potential marker of long-term breast cancer outcomes. Tissue specimens from patients treated on the National Cancer Institute 79-C-0111 randomized trial of breast conservation versus mastectomy between 1979 and 1987 were collected, and immunohistochemistry was performed using the standard isoform of CD44. Specimens were correlated with patient characteristics and outcomes. Survival analysis was performed using the log rank test. Fifty-one patients had evaluable tumor sections and available long-term clinical follow up data at a median follow up of 25.7 years. Significant predictors of OS were tumor size (median OFS 25.4 years for ≤2 cm vs. 7.5 years for >2 cm, p = 0.001), nodal status (median OS 17.2 years for node-negative patients vs. 6.7 years for node positive patients, p = 0.017), and CD44 expression (median OS 18.9 years for CD44 positive patients vs. 8.6 years for CD44 negative patients, p = 0.049). There was a trend toward increased PFS for patients with CD44 positive tumors (median PFS 17.9 vs. 4.3 years, p = 0.17), but this did not reach statistical significance. These findings illustrate the potential utility of CD44 as a prognostic marker for early stage breast cancer. Subgroup analysis in patients with lymph node involvement revealed CD44 positivity to be most strongly associated with increased survival, suggesting a potential role of CD44 in decision making for axillary management. As there is increasing interest in CD44 as a therapeutic target in ongoing clinical trials, the results of this study suggest additional investigation regarding the role CD44 in breast cancer is warranted.
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Affiliation(s)
- T Dan
- Department of Radiation Oncology, Bodine Center for Cancer Treatment, Kimmel Cancer Center, Jefferson Medical College of Thomas Jefferson University, 111 S. 11th Street G-301G, Philadelphia, PA, 19107, USA
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Won JR, Gao D, Chow C, Cheng J, Lau SYH, Ellis MJ, Perou CM, Bernard PS, Nielsen TO. A survey of immunohistochemical biomarkers for basal-like breast cancer against a gene expression profile gold standard. Mod Pathol 2013; 26:1438-50. [PMID: 23702728 DOI: 10.1038/modpathol.2013.97] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 05/01/2013] [Accepted: 05/02/2013] [Indexed: 12/16/2022]
Abstract
Gene expression profiling of breast cancer delineates a particularly aggressive subtype referred to as 'basal-like', which comprises ∼15% of all breast cancers, afflicts younger women and is refractory to endocrine and anti-HER2 therapies. Immunohistochemical surrogate definitions for basal-like breast cancer, such as the clinical ER/PR/HER2 triple-negative phenotype and models incorporating positive expression for CK5 (CK5/6) and/or EGFR are heavily cited. However, many additional biomarkers for basal-like breast cancer have been described in the literature. A parallel comparison of 46 proposed immunohistochemical biomarkers of basal-like breast cancer was performed against a gene expression profile gold standard on a tissue microarray containing 42 basal-like and 80 non-basal-like breast cancer cases. Ki67 and PPH3 were the most sensitive biomarkers (both 92%) positively expressed in the basal-like subtype, whereas CK14, IMP3 and NGFR were the most specific (100%). Among biomarkers surveyed, loss of INPP4B (a negative regulator of phosphatidylinositol signaling) was 61% sensitive and 99% specific with the highest odds ratio (OR) at 108, indicating the strongest association with basal-like breast cancer. Expression of nestin, a common marker of neural progenitor cells that is also associated with the triple-negative/basal-like phenotype and poor breast cancer prognosis, possessed the second highest OR at 29 among the 46 biomarkers surveyed, as well as 54% sensitivity and 96% specificity. As a positively expressed biomarker, nestin possesses technical advantages over INPP4B that make it a more ideal biomarker for identification of basal-like breast cancer. The comprehensive immunohistochemical biomarker survey presented in this study is a necessary step for determining an optimized surrogate immunopanel that best defines basal-like breast cancer in a practical and clinically accessible way.
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Affiliation(s)
- Jennifer R Won
- 1] Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada [2] Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, British Columbia, Canada
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Expression of COX-2, CD44v6 and CD147 and relationship with invasion and lymph node metastasis in hypopharyngeal squamous cell carcinoma. PLoS One 2013; 8:e71048. [PMID: 24019861 PMCID: PMC3760833 DOI: 10.1371/journal.pone.0071048] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Accepted: 06/26/2013] [Indexed: 12/11/2022] Open
Abstract
To assess the expression of COX-2,CD44v6 and CD147 in hypopharyngeal squamous cell carcinomas and the three biomarkers correlation with tumor invasion and lymph node metastasis of Chinese people. 101 cases of surgically excised primary tumor were included in this study, and 40 tissues of epithelium adjacent to carcinoma were used as controls. We characterized the immunohistochemical expression of COX-2, CD44v6, and CD147 in141 formalin-fixed, paraffin-embedded tissues, and measured the mean optical density (OD) of the positive area to identify the expression of the three bio-markers and relationship with tumor invasion and lymph node metastasis. Our study demonstrates that the expression of the COX-2 and CD147 were significantly increased in carcinoma tissues compared to the epithelium adjacent to carcinoma. We also observed that the expression of COX-2, CD44v6, and CD147 were significantly associated with T classification, lymph node metastasis and clinical stage. There was strong significant correlation among the three biomarkers as well. Additionally, we indicated that recurrence and ≥P50 level of COX-2 expression had an independent prognostic effect on prognosis. In conclusion, the three biomarkers play important roles in tumor invasion and lymph node metastases and might be valuable indicators of tumor metastasis in hypopharyngeal squamous cell carcinoma.
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Chen P, Huang HF, Lu R, Wu Y, Chen YZ. Prognostic significance of CD44v6/v7 in acute promyelocytic leukemia. Asian Pac J Cancer Prev 2013; 13:3791-4. [PMID: 23098472 DOI: 10.7314/apjcp.2012.13.8.3791] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
CD44v, especially splice variants containing exon v6, has been shown to be related closely to development of different tumors. High levels of CD44v6/v7 have been reported to be associated with invasiveness and metastasis of many malignancies. The objective of this study was to detect expression of CD44v6-containing variants in patients with acute promyelocytic leukemia (APL) and evaluate the potential of CD44v6/v7 for risk stratification. Reverse transcription polymerase chain reaction (RT-PCR) followed by PCR product purification, ligation into T vectors and positive clone sequencing were used to detect CD44 v6-containing variant isoforms in 23 APL patients. Real-time quantitative PCR of the CD44v6/v7 gene was performed in patients with APL and in NB4 cells that were treated with all-trans retinoic acid (ATRA) or arsenic trioxide (As2O3). Sequencing results identified four isoforms (CD44v6/v7, CD44v6/v8/v10, CD44v6/v8/v9/v10, and CD44v6/v7/v8/v9/v10) in bone marrow mononuclear cells of 23 patients with APL. The level of CD44v6/v7 in high-risk cases was significantly higher than those with low-risk. Higher levels of CD44v6/v7 were found in three patients with central nervous system relapse than in other patients inthe same risk group. Furthermore, in contrast to ATRA, only As2O3 could significantly down-regulate CD44v6/v7 expression in NB4 cells. Our data suggest that CD44v6/v7 expression may be a prognostic indicator for APL.
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Affiliation(s)
- Ping Chen
- Fujian Institute of Hematology, Affiliated Union Hospital of Fujian Medical University, Fujian Provincial Key Laboratory on Hematology, Fuzhou, Fujian, China
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Omran OM, Ata HS. CD44s and CD44v6 in diagnosis and prognosis of human bladder cancer. Ultrastruct Pathol 2012; 36:145-52. [PMID: 22559040 DOI: 10.3109/01913123.2011.651522] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
UNLABELLED The cell adhesion molecules (CAMs) CD44 standard (CD44s) and its variant 6 (CD44v6) are involved in the progression and invasion of human malignancies. However, discrepancies in the prognostic value of CD44s and CD44v6 expression need to be addressed. AIMS To investigate the expression of CD44s and CD44v6 in bladder carcinomas and relate the results to the established prognostic factors. MATERIALS AND METHODS 50 bladder carcinoma specimens, 30 cases with transitional cell carcinoma (TCC: 6 bilharzial and 24 nonbilharzial) and 20 cases with squamous cell carcinoma (SCC: 8 bilharzial and 12 nonbilharzial), were included. Immunohistochemical analysis for CD44s and CD44v6 was carried out using avidin-biotin peroxidase method. RESULTS The level of both CD44s and CD44v6 in TCC was significantly higher in invasive than in preinvasive tumors and normal urothelium (p < .05). A direct association between the percentage of expression of both markers and the grade of TCC (p < .05) was observed. An inverse correlation between CD44s and SCC was seen, where metaplastic urothelium showed higher expression than invasive carcinomas. No association was observed between the expressions of both CD44s and CD44v6 and bilharzial ova, sex and age of the patient, or size of the tumor. CONCLUSIONS The authors report statistically significant correlation between CD44s and CD44v6 expression and increasing grade and stage of TCC. No such correlation with SCC and with bilharzial cystitis, sex and age of the patient, or size of the tumor was documented.
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Affiliation(s)
- Ola M Omran
- Department of Pathology, College of Medicine, Assiut University, Egypt.
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Oh MH, Lee HJ, Yoo SB, Xu X, Choi JS, Kim YH, Lee SY, Lee CT, Jheon S, Chung JH. Clinicopathological correlations of mTOR and pAkt expression in non-small cell lung cancer. Virchows Arch 2012; 460:601-9. [PMID: 22562131 DOI: 10.1007/s00428-012-1239-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 04/16/2012] [Indexed: 12/26/2022]
Abstract
The Akt/mammalian target of rapamycin (mTOR) pathway is up-regulated in many human cancers, and agents targeting the mTOR pathway are in various stages of clinical development and application. Expression of pAkt and mTOR was studied by immunohistochemical analysis of 574 surgically resected non-small cell lung cancer (NSCLC) specimens on a tissue microarray. The results were correlated with clinicopathological features. Expression of mTOR showed a strong correlation with the expression of pAkt (p < 0.001) and was significantly associated with female gender, tumor size of ≤3 cm, adenocarcinoma (ADC), non-smoker status, and lower pathological stage. Expression of pAkt was correlated with older age (≥65), ADC, non-smoker status, and lower T stage. Univariate survival analysis revealed that the mTOR- and pAkt-positive group had a significantly longer cancer-specific survival than the mTOR- and pAkt-negative group (p = 0.038 and 0.024, respectively). Coexpression of pAkt and mTOR correlated with better prognosis than either single- or double-negative pAkt and mTOR groups (p = 0.016). However, multivariate analysis proved that mTOR and pAkt expression are not independent prognostic factors for cancer-specific survival. Expression of pAkt and mTOR expression is more significantly associated with ADC than squamous cell carcinoma. Although pAkt/mTOR expression is not an independent prognostic marker, expression of these proteins is associated with better prognosis.
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Affiliation(s)
- Mee-Hye Oh
- Department of Pathology, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Republic of Korea
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Expression of CD44v6 and Its Association with Prognosis in Epithelial Ovarian Carcinomas. PATHOLOGY RESEARCH INTERNATIONAL 2012; 2012:908206. [PMID: 22482084 PMCID: PMC3317067 DOI: 10.1155/2012/908206] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Revised: 12/04/2011] [Accepted: 12/08/2011] [Indexed: 12/02/2022]
Abstract
The aim of this study was to evaluate CD44v6 protein expression and its prognostic value of CD44v6 in ovarian carcinoma. The expression of CD44v6 was analyzed in 62 patients with ovarian carcinoma by immunohistochemical method. The data obtained were analyzed by univariate and multivariate analyses. The present study clearly demonstrates that tumor tissues from 41 (66.1%) patients showed positive expression with CD44v6. The expression of CD44v6 was significantly correlated with histological type, FIGO stage and histological grade of ovarian carcinomas. Concerning the prognosis, the survival period of patients with CD44v6 positive was shorter than that of patients with CD44v6 negative (36.6% versus 66.7%, 5-year survival, P < 0.05). Univariate analysis showed that CD44v6 expression, histological type, FIGO stage and histological grade were associated with 5-year survival, and CD44v6 expression was associated with histological type, FIGO stage and histological grade and 5-year survival. In multivariate analysis, using the COX-regression model, CD44v6 expression was important prognostic factor. In conclusion, these results suggest that CD44v6 may be related to histological type, FIGO stage and histological grade of ovarian carcinomas, and CD44v6 may be an important molecular marker for poor prognosis in ovarian carcinomas.
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Yu KN, Minai-Tehrani A, Chang SH, Hwang SK, Hong SH, Kim JE, Shin JY, Park SJ, Kim JH, Kwon JT, Jiang HL, Kang B, Kim D, Chae CH, Lee KH, Yoon TJ, Beck GR, Cho MH. Aerosol delivery of small hairpin osteopontin blocks pulmonary metastasis of breast cancer in mice. PLoS One 2010; 5:e15623. [PMID: 21203518 PMCID: PMC3008732 DOI: 10.1371/journal.pone.0015623] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 11/17/2010] [Indexed: 11/19/2022] Open
Abstract
Background Metastasis to the lung may be the final step in the breast cancer-related morbidity. Conventional therapies such as chemotherapy and surgery are somewhat successful, however, metastasis-related breast cancer morbidity remains high. Thus, a novel approach to prevent breast tumor metastasis is needed. Methodology/Principal Finding Aerosol of lentivirus-based small hairpin osteopontin was delivered into mice with breast cancer twice a week for 1 or 2 months using a nose-only inhalation system. The effects of small hairpin osteopontin on breast cancer metastasis to the lung were evaluated using near infrared imaging as well as diverse molecular techniques. Aerosol-delivered small hairpin osteopontin significantly decreased the expression level of osteopontin and altered the expression of several important metastasis-related proteins in our murine breast cancer model. Conclusion/Significance Aerosol-delivered small hairpin osteopontin blocked breast cancer metastasis. Our results showed that noninvasive targeting of pulmonary osteopontin or other specific genes responsible for cancer metastasis could be used as an effective therapeutic regimen for the treatment of metastatic epithelial tumors.
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Affiliation(s)
- Kyeong-Nam Yu
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Arash Minai-Tehrani
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Seung-Hee Chang
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Soon-Kyung Hwang
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Seong-Ho Hong
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Ji-Eun Kim
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
- Department of Nano Fusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
| | - Ji-Young Shin
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Sung-Jin Park
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Ji-Hye Kim
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
- Department of Nano Fusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
| | - Jung-Taek Kwon
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Hu-Lin Jiang
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Bitna Kang
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Duyeol Kim
- Laboratory of Pathology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Chan-Hee Chae
- Laboratory of Pathology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Kee-Ho Lee
- Laboratory of Molecular Oncology, Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Tae-Jong Yoon
- Department of Applied BioScience, CHA University, Seoul, Republic of Korea
| | - George R. Beck
- Division of Endocrinology, Metabolism, and Lipids, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Myung-Haing Cho
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
- Department of Nano Fusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
- Graduate Group of Tumor Biology, Seoul National University, Seoul, Republic of Korea
- * E-mail:
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