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Concentrating on molecular biomarkers in cancer research, Cancer Biomarkers publishes original research findings (and reviews solicited by the editor) on the subject of the identification of markers associated with the disease processes whether or not they are an integral part of the pathological lesion.
The disease markers may include, but are not limited to, genomic, epigenomic, proteomics, cellular and morphologic, and genetic factors predisposing to the disease or indicating the occurrence of the disease. Manuscripts on these factors or biomarkers, either in altered forms, abnormal concentrations or with abnormal tissue distribution leading to disease causation will be accepted.
Authors: Liu, Longyang | Yi, Juanjuan | Yuan, Jianhuan | Yao, Tingting | Lin, Zhongqiu | Ning, Yingxia | Zeng, Zhaoyang
Article Type: Research Article
Abstract: OBJECTIVE: To investigate FOXO1 expression in epithelial ovarian cancer (EOC), and to explore its correlation with clinicopathological parameters and prognosis of EOC. METHODS: Two hundred and sixteen cases of paraffin-embedded EOC and 41 paratumor tissues from 2009 to 2017 that had been pathologically confirmed at the memorial hospital of Sun Yat-sen University were included in this study, and the expression of FOXO1 was performed by immunohistochemistry using a polyclonal antibody specific for FOXO1. RESULTS: FOXO1 protein expression is associated with Recurrence free and overall survival in EOC patients; In addition, FOXO1 expression is …associated with age, FIGO stage, intraperitoneal metastasis, intestinal metastasis, vital status, intraperitoneal recurrence and differentiation grade; Moreover, in a multivariate model FOXO1 overexpression was an independent predictor of poor survival in EOC. CONCLUSION: FOXO1 may play a candidate oncogenic role in EOC, and FOXO1 is a useful independent prognostic marker in EOC, and it may provide a candidate target therapy in future. Show more
Keywords: FOXO1, epithelial ovarian cancer, prognosis
DOI: 10.3233/CBM-182119
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 1-8, 2020
Authors: Fang, Zheping | Wu, Linjun | Dai, Haojiang | Hu, Peng | Wang, Binfeng | Han, Qiuyue | Xu, Yongfu | Lv, Shangdong | Zhu, Yu | Gan, Meifu | Zhou, Weijie | Zhang, Wenlong
Article Type: Research Article
Abstract: BACKGROUND: Recently, hepatocellular carcinoma (HCC) has been ranked as the second leading cause of cancer-associated death. However, the underlying molecular mechanisms of HCC progression remain unclear. Vesicular overexpressed in cancer pro-survival protein 1 (VOPP1) could be upregulated in a quantity of human cancers, including squamous cell carcinoma (SCC), gastric cancer, and glioblastoma. However, the precise functional mechanism of VOPP1 in HCC remains poorly understood. The present study aimed to investigate the role of VOPP1 in HCC proliferation. METHODS: Immunohistochemistry (IHC), Western blot and Reverse-transcription polymerase chain reaction (RT-PCR) were used to analyze the protein and mRNA …expressions of VOPP1, mitogen-activated protein kinase (MAPK) 14, ribosomal protein S6 kinase β 1 (RPS6KB1), cylindromatosis (CYLD) and Twist family bHLH transcription factor 1 (TWIST1). The cell proliferation and apoptosis were tested using Celigo cell imaging analyzer and annexin V-APC apoptosis detection kit respectively. Colony formation and tumor xenograft assays were performed to understand their roles in tumorigenicity. RESULTS: The expression of VOPP1 in HCC samples was higher than that in adjacent noncancerous tissues by immunohistochemistry. In addition, the down-regulation of VOPP1 using shRNA inhibited cell proliferation and tumour growth, and induced cell apoptosis in vitro and in vivo . Furthermore, VOPP1 silencing increased the expression of MAPK14 and RPS6KB1, indicating that the MAPK and mTOR signalling pathways might be involved in VOPP1-mediated cancer cell proliferation. CONCLUSION: The present data indicate that VOPP1 may play an important role in the progression of HCC by targeting the MAPK and mTOR signalling pathways, and that VOPP1 may potentially be a candidate as a novel molecular target for HCC therapy. Show more
Keywords: VOPP1, hepatocellular carcinoma, proliferation, apoptosis
DOI: 10.3233/CBM-190574
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 9-20, 2020
Authors: Ling, Wang | Yangchun, Xu | Wei, Wang | Qiang, Wang
Article Type: Research Article
Abstract: INTRODUCTION: The present study evaluated the effects of the long non-coding RNA (lncRNA) gastric carcinoma high-expressed transcript (GHET1) in cervical carcinoma development. METHODS: The expression levels of GHET1 and PTEN were measured using in situ hybridisation, immunohistochemistry (IHC) and quantitative reverse transcription PCR assay to investigate their correlations. In an in vitro study, the effects of GHET1 knockdown on the biological activities of SiHa and HeLa cells were evaluated by MTT, flow cytometry, transwell and wound-healing assays and relative protein expression was measured using western blotting. In an in vivo experiment, cell apoptosis and …relative protein expression were measured in nude mice using TUNEL and IHC assays, respectively. RESULTS: The expression levels of lncRNA GHET1 and PTEN protein differed significantly between cancer and adjacent normal tissues (P < 0.05) and were negatively correlated in the clinical data. In vitro, proliferation rateswere significantly down-regulated in SiHa and HeLa cells. The GHET1 knockdown (si-GHET1) groups showed significantly higher G 1 phase and apoptosis rates and significantly suppressed invasion and migration abilities compared with the normal control (NC) group (P < 0.05 for all). The expression levels of PTEN, PI3 K, AKT, P53, matrix metalloproteinase (MMP)-2 and MMP-9 proteins differed significantly between the si-GHET1 and NC groups (P < 0.05 for all). In vitro, the lncRNA group showed significantly suppressed tumour volume and weight, increased cell apoptosis and different relative protein expression levels compared with the NC group (P < 0.05 for all). CONCLUSION: GHET1 knockdown suppressed cervical carcinoma development via the PTEN/PI3 K/AKT signalling pathway. Show more
Keywords: GHET1, PTEN, PI3 K, AKT, SiHa, HeLa
DOI: 10.3233/CBM-190269
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 21-32, 2020
Authors: Matsumoto, Kazumasa | Murakami, Yasukiyo | Shimizu, Yuriko | Hirayama, Takahiro | Ishikawa, Wataru | Iwamura, Masatsugu
Article Type: Research Article
Abstract: BACKGROUND: No study has yet investigated the use of electronic nose (eNose) technology to reveal pattern recognition of urological diseases, including bladder cancer. OBJECTIVE: We sought to determine the diagnostic performance of the eNose in recognizing urinary odour in patients with bladder cancer. METHODS: The eNose is a commercially available model equipped with two sensors. The angle of the two sensors (θ ) depends on the kinds of chemical substances, thus defining θ as the feature of odour. Quantity of odour is the number of θ …detected during a measurement. Urine samples were from 36 untreated patients with bladder cancer, 29 with urolithiasis, 10 with urinary tract infection (UTI), and 27 healthy volunteers. RESULTS: Based on ROC analysis of the quantity in patients with bladder cancer, an optimal cut-off value for θ of 49, 48, and 55 was applied to compare with samples from the healthy volunteer, urolithiasis and UTI groups, respectively. There were significantly differences between bladder cancer and the other conditions using these specific points (p < 0.0001, respectively). The resulting diagnostic sensitivity was 61.4%, 45.6%, and 60.8%, and specificity was 52.8%, 68.4%, and 90.2%, respectively. The AUC for bladder cancer was 0.565, 0.548, and 0.909, respectively. CONCLUSION: The eNose is a small, portable, rapid, low cost, and noninvasive instrument for distinguishing bladder cancer from other benign conditions. Show more
Keywords: Bladder cancer, electronic nose, urine, odour
DOI: 10.3233/CBM-190466
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 33-39, 2020
Authors: Li, Huixia | Guan, Congjin
Article Type: Research Article
Abstract: BACKGROUND: To investigate the influences of HOX transcript antisense ribonucleic acid (HOTAIR) on the proliferation and apoptosis of glioblastoma cells by targeting micro RNA (miR)-219. OBJECTIVE: With glioblastoma cell line U87 as the object, the changes in expression levels of HOTAIR and miR-219 in each group were detected via quantitative real-time polymerase chain reaction (qRT-PCR) after HOTAIR in U87 cell lines was knocked down using small interfering RNA (siRNA). Then the cell proliferation in each group was determined using Cell Counting Kit-8 (CCK-8) and colony formation assays. Flow cytometry was applied to detect the cell apoptosis, …and Western blotting assay was adopted to measure the changes in protein levels of Cyclin D1 and Bcl-2-associated X protein (Bax). After miR-219 knockdown with siRNA, the changes in expression levels of HOTAIR and miR-219 in each group were examined through qRT-PCR, and the cell proliferation was tested by CCK-8 assay. RESULTS: After interference inHOTAIR using siRNA, compared with those in control group, the RNA expression level of HOTAIR was decreased remarkably (p < 0.05), the RNA expression level of miR-219 was increased notably (p < 0.05), the cell proliferation rate was inhibited evidently (p < 0.05), the apoptosis rate was enhanced obviously (p < 0.05), the protein expression level of Cyclin D1 declined markedly (p < 0.05), and the protein expression level of Bax rose distinctly (p < 0.05) in HOTAIR-siRNA group. After miR-219 knockdown with siRNA, the cell proliferation rate was raised remarkably (p < 0.05), but there was no significant change in the RNA expression level of HOTAIR (p > 0.05). CONCLUSION: HOTAIR can repress the proliferation and promote the apoptosis of glioblastoma cells by targeting miR-219. Show more
Keywords: HOTAIR, miR-219, glioblastoma, proliferation and apoptosis
DOI: 10.3233/CBM-190467
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 41-47, 2020
Authors: Ali, Marwa A. | Shaker, Olfat G. | Alazrak, Mohammed | AbdelHafez, Marwa N. | Khalefa, Abeer A. | Hemeda, Nada F. | Abdelmoktader, Abdelrahman | Ahmed, Fatma A.
Article Type: Research Article
Abstract: BACKGROUND: LncRNA MEG3 rs7158663 has been shown to confer cancer susceptibility, maybe through altering its gene expression level. OBJECTIVE: We aimed to weigh the effect of rs7158663 on MEG3 serum level and breast cancer susceptibility. METHODS: We genotyped rs7158663 G > A and measured serum MEG3 in 150 breast cancer, 95 fibroadenoma , and 154 controls by the TaqMan method. RESULTS: The presence of rs7158663 G > A is a risk factor for breast cancer among fibroadenoma patients and controls, AA vs. GG genotypes …(OR = 6.320, 95% CI = 2.587–15.439, P < 0.0001 when compared to controls and OR = 10.825, 95% CI = 1.929–60.742, P = 0.007 when compared to fibroadenoma). Decreased serum MEG3 was observed in breast cancer group when compared with fibroadenoma and/or controls [median (IQR) = 0.43 (0.27–0.55)] (P < 0.0001). However, increased serum MEG3 was noted in fibroadenoma group when compared with controls (P < 0.0001). A significance decreased serum MEG3 was found to be associated with mutant A allele than with wild G allele (P < 0.0001). The results showed that rs7158663 and lower MEG3 were significantly associated with patients with higher TNM staging and larger tumor size > 5 cm. CONCLUSION: The presence of both rs7158663 and low MEG3 are diagnostic and unfavorable prognostic factors for BC patients. Show more
Keywords: MEG3, polymorphism, rs7158663, breast cancer, fibroadenoma
DOI: 10.3233/CBM-191072
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 49-63, 2020
Authors: Zeng, Zhaoyang | Ji, Na | Yi, Juanjuan | Lv, Jin | Yuan, Jianhuan | Lin, Zhongqiu | Liu, Longyang | Feng, Xin
Article Type: Research Article
Abstract: OBJECTIVE: LGR4 expression in serous ovarian cancer paraffin-embedded tissues and fresh tissues were investigated, and its expression associated with clinicopathological parameters and prognosis in serous ovarian cancer was explored. METHODS: From Dec, 2009 to Jan, 2020, 122 paraffin-embedded serous ovarian cancer patients and 41 paired paratumor tissues who were both diagnosed and operated at the memorial hospital of Sun Yat-sen University and Integrated Hospital of Traditional Chinese Medicine, Southern Medical University were selected in this research, respectively, and all of these tissues were performed by immunohistochemistry (IHC) with a polyclonal antibody for LGR4. Meanwhile, from Aug, …2013 to Mar, 2019, 15 cases of serous ovarian cancer fresh tissues and 15 cases of paratumor fresh tissues who were operated at Integrated Hospital of Traditional Chinese Medicine, Southern Medical University were performed with Quantitative Real-time PCR to detect the mRNA expression of LGR4, respectively. RESULTS: LGR4 expression was much higher both in paraffin-embedded and fresh cancer tissues than that in paratumor tissues, respectively, and its expression was associated with recurrence free survival and overall survival in serous ovarian cancer patients. Moreover, in a multivariate model LGR4 was an indeed independent predictor of poor survival in serous ovarian cancer patients. CONCLUSION: LGR4 is upregulated in serous ovarian cancer, and LGR4 is an indeed useful independent prognostic predictor in serous ovarian cancer, and it may provide important clinical value of serous ovarian cancer. Show more
Keywords: LGR4, serous ovarian cancer, prognosis
DOI: 10.3233/CBM-191145
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 65-72, 2020
Authors: Yang, Junsheng | Zhang, Zhen | Chen, Shaoping | Dou, Wenwen | Xie, Ruizhu | Gao, Jie
Article Type: Research Article
Abstract: BACKGROUND: Increasing evidence reveals that aberrant microRNAs (miRNAs) expression play a crucial role in the tumorigenesis of cancers, including hepatocellular carcinoma (HCC), whereas the role of miR-654-3p in HCC remains unclear. This study aimed to investigate the role of miR-654-3p in HCC. METHODS: Real-time quantitative PCR was performed to detect miR-654-3p expression in HCC tissues and cell lines. The association of miR-654-3p expression with clinical characteristics of HCC patients were analyzed. And the prognostic value of miR-654-3p was examined using Kaplan-Meier curve and Cox regression analysis. CCK-8 and Transwell assays were used to observe the effects …of miR-654-3p on proliferation, migration, and invasion of HCC cells. RESULTS: The miR-654-3p expression was downregulated in both HCC tissues and cell lines, which was significantly associated with lymph node metastasis and TNM stage. Downregulation of miR-654-3p predicted poor prognosis of HCC patients. Overexpression of miR-654-3p inhibited HCC cell proliferation, migration, and invasion, while knockdown of miR-654-3p promoted these cellular behaviors in vitro . CONCLUSION: Our study suggested that miR-654-3p expression was downregulated in HCC and might serve as a potential prognostic marker and therapeutic target for the survival of HCC patients. miR-654-3p might exert a suppressor role in HCC through inhibiting tumor cell proliferation, migration, and invasion. Show more
Keywords: Hepatocellular carcinoma, invasion, miR-654-3p, migration, prognosis, proliferation
DOI: 10.3233/CBM-191084
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 73-79, 2020
Authors: Hyun, Jae-Won | Shin, Hyung Shik | Kim, Su-Hyun | Kong, Sun-Young | Yoo, Heon | Gwak, Ho-Shin | Kim, Ho Jin
Article Type: Research Article
Abstract: BACKGROUND: To investigate the feasibility of cerebrospinal fluid (CSF) CYFRA 21-1 levels as a therapeutic monitoring biomarker in leptomeningeal carcinomatosis (LMC) patients undergoing ventriculo-lumbar perfusion (VLP) chemotherapy. METHODS: The levels of CYFRA 21-1 in 42 CSF samples from 15 LMC patients were analyzed using an electrochemiluminescence immunoassay. Samples were collected at individual time points during VLP chemotherapy. Therapeutic outcomes were measured as improvements in the Karnofsky Performance Status (KPS) score and decreasing intracranial pressure (ICP) as the main endpoint of VLP chemotherapy. Changes in CSF CYFRA 21-1 levels, protein levels, and cytology results were also investigated. …We subsequently evaluated whether these changes were correlated with KPS score and ICP. RESULTS: The CSF CYFRA 21-1 levels at individual time points were associated with KPS score and ICP. The KPS scores (p = 0.007) and ICP (p = 0.018) of patients with high CSF CYFRA 21-1 levels were significantly different from those of patients with low CSF CYFRA 21-1 levels. By contrast, CSF protein levels and cytological responses were not significantly associated with KPS scores and ICP. CONCLUSIONS: CSF CYFRA 21-1 may have utility as a therapeutic monitoring biomarker to design personalized therapeutic strategies in LMC patients undergoing VLP chemotherapy. Show more
Keywords: Leptomeningeal metastasis, monitoring, biomarker, CSF, CYFRA 21-1
DOI: 10.3233/CBM-190187
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 81-89, 2020
Authors: Kaikkonen, Elina | Takala, Aliisa | Pursiheimo, Juha-Pekka | Wahlström, Gudrun | Schleutker, Johanna
Article Type: Research Article
Abstract: BACKGROUND: Elevated Anoctamin 7 (ANO7 ) expression is associated with poor survival in prostate cancer patients. OBJECTIVE: The aim was to discover proteins that interact with ANO7 to understand its functions and regulatory mechanisms. METHODS: The proximity-dependent biotin identification (BioID) method was utilized. ANO7 fused to biotin ligase was transiently transfected into LNCaP cells, and the biotinylated proteins were collected and analysed by mass spectrometry. Four identified proteins were stained with dual fluorescent immunostaining and visualized using Stimulated emission depletion microscopy (STED). RESULTS: After bioinformatic filtering steps, 64 potentially ANO7-interacting …proteins were identified and analysed with the GO enrichment analysis tool. One of the most prominently enriched cellular components was cellular vesicle. Co-localization was showed for staphylococcal nuclease and tudor domain containing 1 (SND1), heat shock protein family A (Hsp70) member 1A (HSPA1A), adaptor related protein complex 2 subunit beta 1 (AP2B1) and coatomer protein complex subunit gamma 2 (COPG2). CONCLUSIONS: This is the first study in which ANO7 interacting proteins have been identified. Although further studies are needed, the findings reported here expand our understanding of the role and regulation of ANO7 in prostate cancer cells. Furthermore, these results are likely to introduce new targets for the novel cancer therapies. Show more
Keywords: ANO7, AP2B1, BioID, COPG2, HSPA1A, interactome, prostate cancer, proteomics
DOI: 10.3233/CBM-190993
Citation: Cancer Biomarkers, vol. 28, no. 1, pp. 91-100, 2020
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