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Amber A, Nawaz H, Bhatti HN, Mushtaq Z. Surface-enhanced Raman spectroscopy for the characterization of different anatomical subtypes of oral cavity cancer. Photodiagnosis Photodyn Ther 2023:103607. [PMID: 37220841 DOI: 10.1016/j.pdpdt.2023.103607] [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: 03/27/2023] [Revised: 05/04/2023] [Accepted: 05/09/2023] [Indexed: 05/25/2023]
Abstract
BACKGROUND The prognosis for oral cancer patients is still very poor worldwide. Early detection and treatment therapy remain the key issue to be addressed for improved patient survival. The characteristic Raman spectral features associated with the biochemical changes in the blood serum samples can be used for the diagnosis of diseases, particularly for oral cancer. Surface-enhanced Raman spectroscopy (SERS) is a promising technique for non-invasive and early detection of oral cancer by analyzing molecular changes in body fluids. OBJECTIVES To detect oral cavity anatomical subsites (buccal mucosa, cheek, hard palate, lips, mandible, maxilla, tongue and tonsillar region) cancers by using blood serum samples, SERS with principal component analysis is used. MATERIAL AND METHOD SERS is employed with silver nanoparticles for the analysis and detection of oral cancer serum samples by comparing with healthy serum samples. SERS spectra are recorded by Raman instrument and preprocessed using the statistical tool. Principal component analysis (PCA) and Partial least square discriminant analysis (PLS-DA) are used to discriminate between oral cancer serum samples and control serum samples. RESULTS Some major SERS peaks are observed at 1136 cm-1 (Phospholipids) and 1006 cm-1 (Phenylalanine) remain higher in intensities for oral cancer spectra as compared to healthy spectra. The peak at 1241 cm-1 (amide III) is observed only in oral cancer serum samples while absent in healthy serum samples. Higher protein and DNA contents were detected in SERS mean spectra of oral cancer. Moreover, PCA is used to identify the biochemical differences in the form of SERS features which is used to differentiate between oral cancer and healthy blood serum samples, while PLS-DA is used to build differentiation model of oral cancer serum samples and healthy control serum samples. PLS-DA provides successful differentiation with 94% specificity and 95.5% sensitivity. CONCLUSIONS SERS can be used for the diagnosis of oral cancer and to identify metabolic changes that occur during disease development.
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Affiliation(s)
- Arooj Amber
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, (38000), Pakistan
| | - Haq Nawaz
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, (38000), Pakistan.
| | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, (38000), Pakistan
| | - Zahid Mushtaq
- Department of Biochemistry, University of Agriculture Faisalabad, Faisalabad, (38000), Pakistan
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CYFRA 21-1 in Lymph Node Fine Needle Aspiration Washout Improves Diagnostic Accuracy for Metastatic Lymph Nodes of Differentiated Thyroid Cancer. Cancers (Basel) 2019; 11:cancers11040487. [PMID: 30959821 PMCID: PMC6520940 DOI: 10.3390/cancers11040487] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 03/30/2019] [Accepted: 04/02/2019] [Indexed: 01/05/2023] Open
Abstract
Fine needle aspiration cytology (FNAC) and washout thyroglobulin (Tg) measurements are the standard for evaluating a metastatic lymph node (LN) in thyroid cancer. However, patients rarely benefit from these procedures due to false results. This study aims to identify a reliable biomarker that significantly improves the diagnosis of metastatic LNs, in addition to FNAC and washout Tg. This study analyzed 130 LNs that were suspected to have metastases on thyroid ultrasonography, from June 2016 to December 2017. All subjects underwent FNAC, washout Tg measurements and a new biomarker, washout Cytokeratin fragment 21-1 (CYFRA 21-1) measurement. The final LN outcomes were confirmed by surgical histology, repeat FNAC, or follow-up image. The diagnostic values of the presence of washout CYFRA 21-1 for diagnosing metastatic LNs were evaluated according to final LN outcomes. Among the 130 LNs, 42 were metastatic lesions and 88 were benign. The washout CYFRA 21-1 levels were significantly higher in metastatic LNs than in benign LNs. In contrast to the findings of washout Tg, washout CYFRA 21-1 showed little overlap between benign and malignant LNs, and its diagnostic cutoff values were not affected by surgery. The combinations of FNAC and washout CYFRA 21-1 showed higher sensitivity (91.9%), specificity (96.5%), negative predictive value (98.8%), and diagnostic accuracy (94.2%) than FNAC with washout Tg. The combination of FNAC, washout Tg, and washout CYFRA 21-1 showed the best sensitivity (98.8%). When washout CYFRA 21-1 was applied to the discordant results that were observed between FNAC and washout Tg, 20 of 22 LNs were correctly diagnosed. Washout CYFRA 21-1 measurements in thyroid LNs provide a diagnostic modality.
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He K, Zhang L, Long X. Quantitative assessment of the association between APC promoter methylation and breast cancer. Oncotarget 2018; 7:37920-37930. [PMID: 27191268 PMCID: PMC5122360 DOI: 10.18632/oncotarget.9354] [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] [Received: 01/13/2016] [Accepted: 04/26/2016] [Indexed: 12/15/2022] Open
Abstract
Adenomatous polyposis coli (APC) is an important tumor suppressor gene in breast cancer. However, there were inconsistent conclusions in the association between APC promoter methylation and breast cancer. Hence, we conducted a meta-analysis to quantitatively assess the clinicopathological significance and diagnosis role of APC methylation in breast cancer. In total, 3172 samples from 29 studies were performed in this study. The odds ratio (OR) of APC methylation was 5.92 (95% CI = 3.16–11.07) in breast cancer cases compared to controls,. The APC promoter methylation was associated with cancer stage (OR = 0.47, 95% CI = 0.28–0.80, P = 0.006), lymph node metastases (OR = 0.55, 95% CI = 0.36–0.84, P = 0.005) and ER status (OR = 1.34, 95% CI = 1.03–1.73, P = 0.003) in breast cancer. Furthermore, the sensitivity and specificity for all included studies were 0.444 (95% CI: 0.321–0.575, P < 0.0001) and 0.976 (95% CI: 0.916–0.993, P < 0.0001), respectively. These results suggested that APC promoter methylation was associated with breast cancer risk, and it could be a valuable biomarker for diagnosis, treatment and prognosis of breast cancer.
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Affiliation(s)
- Keli He
- Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.,Department of Clinical Laboratory, The First People's Hospital of Changde City, Changde, 415003, China
| | - Li Zhang
- Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xinghua Long
- Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
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Zhou D, Tang W, Wang W, Pan X, An HX, Zhang Y. Association between aberrant APC promoter methylation and breast cancer pathogenesis: a meta-analysis of 35 observational studies. PeerJ 2016; 4:e2203. [PMID: 27478702 PMCID: PMC4950556 DOI: 10.7717/peerj.2203] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 06/10/2016] [Indexed: 12/01/2022] Open
Abstract
Background. Adenomatous polyposis coli (APC) is widely known as an antagonist of the Wnt signaling pathway via the inactivation of β-catenin. An increasing number of studies have reported that APC methylation contributes to the predisposition to breast cancer (BC). However, recent studies have yielded conflicting results. Methods. Herein, we systematically carried out a meta-analysis to assess the correlation between APC methylation and BC risk. Based on searches of the Cochrane Library, PubMed, Web of Science and Embase databases, the odds ratio (OR) with 95% confidence interval (CI) values were pooled and summarized. Results. A total of 31 articles involving 35 observational studies with 2,483 cases and 1,218 controls met the inclusion criteria. The results demonstrated that the frequency of APC methylation was significantly higher in BC cases than controls under a random effect model (OR = 8.92, 95% CI [5.12–15.52]). Subgroup analysis further confirmed the reliable results, regardless of the sample types detected, methylation detection methods applied and different regions included. Interestingly, our results also showed that the frequency of APC methylation was significantly lower in early-stage BC patients than late-stage ones (OR = 0.62, 95% CI [0.42–0.93]). Conclusion. APC methylation might play an indispensable role in the pathogenesis of BC and could be regarded as a potential biomarker for the diagnosis of BC.
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Affiliation(s)
- Dan Zhou
- Department of Translational Medicine, Xiamen Institute of Rare Earth Materials, Xiamen, China; Department of Translational Medicine, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Fuzhou, China
| | - Weiwei Tang
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University , Xiamen , China
| | - Wenyi Wang
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University , Xiamen , China
| | - Xiaoyan Pan
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University , Xiamen , China
| | - Han-Xiang An
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University , Xiamen , China
| | - Yun Zhang
- Department of Translational Medicine, Xiamen Institute of Rare Earth Materials, Xiamen, China; Department of Translational Medicine, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Fuzhou, China
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CEA in breast ductal secretions as a promising biomarker for the diagnosis of breast cancer: a systematic review and meta-analysis. Breast Cancer 2016; 23:813-819. [PMID: 26898373 DOI: 10.1007/s12282-016-0680-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 02/14/2016] [Indexed: 11/26/2022]
Abstract
PURPOSE Other studies have shown that levels of carcinoembryonic antigen (CEA) in breast ductal secretions (BDS) differ significantly between breast cancer (BC) patients and healthy individuals, providing direct evidence for CEA in BDS as a promising biomarker for BC. This meta-analysis was designed to assess the potential diagnostic value of CEA in BDS. METHODS Relevant articles were retrieved from Embase, Pubmed, and the Cochrane Library. Sensitivity, specificity, and diagnostic odds ratio (DOR) of CEA in BDS for diagnosing BC were pooled using random effects models. SROC and the area under the curve (AUC) were used to estimate overall diagnostic performance. RESULTS This meta-analysis comprised five studies with a total of 340 BC patients and 448 healthy controls. For CEA in BDS, the pooled sensitivity, specificity, and DOR to diagnose BC were 58 % [95 % confidence interval (CI): 52-63 %], 87 % (95 % CI: 84-90 %), and 7.07 (95 % CI: 3.10-16.12), respectively. Moreover, the AUC of CEA in the diagnosis of BC was 0.8570. CONCLUSIONS CEA in BDS is a promising biomarker in the diagnosis of BC and should be evaluated as a standard screening tool upon verification of our results in a larger study population.
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Shakeri H, Gharesouran J, Fakhrjou A, Esfahani A, Mohaddes Ardebili SM. DNA methylation assessment as a prognostic factor in invasive breast cancer using methylation-specific multiplex ligation dependent probe amplification. EXCLI JOURNAL 2016; 15:11-20. [PMID: 27065772 PMCID: PMC4822054 DOI: 10.17179/excli2015-485] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 12/05/2015] [Indexed: 12/17/2022]
Abstract
DNA methylation of promoter regions is a common molecular mechanism for inactivation of tumor suppressor genes that participates in carcinogenesis. Determining the methylation status of genes in cancer and their association with clinical features play an essential role in early diagnosis, prognosis and determine appropriate treatment for patients. The purpose of the present study was to evaluate the methylation of tumor suppressor genes in patients with invasive ductal carcinoma (IDC). Furthermore, we evaluated the association between clinical parameters and DNA methylation as a biomarker in diagnostic IDC patients. The methylation-specific multiplex ligation dependent probe amplification (MS-MLPA) assay was used to analyze the methylation profile of 24 genes in formalin-fixed paraffin embedded (FFPE) tissue samples from 75 patients with IDC. Each of the patients showed a distinctive methylation profile. We observed higher methylation in the RASSF1 (48 %), CDH13 (44 %) and GSTP1 (36 %) genes. Some of the methylated genes were associated with clinical features. Methylation of GSTP1 (P=0.028) and RASSF1 (P=0.012) were related with lymph node metastasis. Methylation of GSTP1 (P=0.005) was associated with high histological grade. Moreover, concurrent methylation of GSTP1 and CDH13 was observed in IDC patients (p<0.001). Hierarchical cluster analysis based on the methylation profile revealed two main clusters of patients, the highly methylated cluster being significantly associated with high histological grade and lymph node metastasis. The results of this study indicate that the methylation status of RASSF1 and CDH13 and GSTP1 can be a prognostic marker to better management of IDC patients.
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Affiliation(s)
- Halaleh Shakeri
- Hematology & Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Biochemistry and Clinical Laboratories, Division of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jalal Gharesouran
- Department of Biochemistry and Clinical Laboratories, Division of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ashraf Fakhrjou
- Department of Pathology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Esfahani
- Hematology & Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyyed Mojtaba Mohaddes Ardebili
- Hematology & Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Biochemistry and Clinical Laboratories, Division of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Mydlarz WK, Hennessey PT, Wang H, Carvalho AL, Califano JA. Serum biomarkers for detection of head and neck squamous cell carcinoma. Head Neck 2016; 38:9-14. [PMID: 24995714 PMCID: PMC4317379 DOI: 10.1002/hed.23842] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2014] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Detection of hypermethylated circulating tumor DNA has the potential to be a minimally invasive, low cost, and reproducible method for cancer detection. METHODS We evaluated serum from 100 patients with known head and neck squamous cell carcinoma (HNSCC) and 50 healthy control patients for 3 previously described methylation targets, endothelin receptor type B (EDNRB), cyclin-dependent kinase inhibitor 2A (CDKN2A or p16), and deleted in colorectal carcinoma (DCC), using quantitative methylation specific polymerase chain reaction (qMSPCR). RESULTS EDNRB hypermethylation was identified in the serum of 10% of the patients with HNSCC but in none of the control patients. DCC hypermethylation was detected in 2 serum samples from patients with cancer that also amplified EDNRB and one of these samples also had p16 hypermethylation. EDNRB hypermethylation was statistically significant by Fisher's exact test (p = .03) when comparing HNSCC to controls. CONCLUSIONS Serum EDNRB hypermethylation is a highly specific but not sensitive serum biomarker for HNSCC.
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Affiliation(s)
- Wojciech K. Mydlarz
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Patrick T. Hennessey
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Hao Wang
- Division of Biostatistics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Joseph A. Califano
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Milton J. Dance Head and Neck Center, Greater Baltimore Medical Center, Baltimore, MD, USA
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Delineating an epigenetic continuum for initiation, transformation and progression to breast cancer. Cancers (Basel) 2013; 3:1580-92. [PMID: 21776373 PMCID: PMC3138135 DOI: 10.3390/cancers3021580] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Aberrant methylation of promoter CpG islands is a hallmark of human cancers and is an early event in carcinogenesis. We examined whether promoter hypermethylation contributes to the pathogenesis of benign breast lesions along a progression continuum to invasive breast cancer. The exploratory study cohort comprised 17 breast cancer patients with multiple benign and/or in situ lesions concurrently present with invasive carcinoma within a tumor biopsy. DNA from tumor tissue, normal breast epithelium when present, benign lesions (fibroadenoma, hyperplasia, papilloma, sclerosing adenosis, apocrine metaplasia, atypical lobular hyperplasia or atypical ductal hyperplasia), and in situ lesions of lobular carcinoma and ductal carcinoma were interrogated for promoter methylation status in 22 tumor suppressor genes using the multiplex ligation-dependent probe amplification assay (MS-MLPA). Methylation specific PCR was performed to confirm hypermethylation detected by MS-MLPA. Promoter methylation was detected in 11/22 tumor suppressor genes in 16/17 cases. Hypermethylation of RASSF1 was most frequent, present in 14/17 cases, followed by APC in 12/17, and GSTP1 in 9/17 cases with establishment of an epigenetic monocloncal progression continuum to invasive breast cancer. Hypermethylated promoter regions in normal breast epithelium, benign, and premalignant lesions within the same tumor biopsy implicate RASSF1, APC, GSTP1, TIMP3, CDKN2B, CDKN2A, ESR1, CDH13, RARB, CASP8, and TP73 as early events. DNA hypermethylation underlies the pathogenesis of step-wise transformation along a monoclonal continuum from normal to preneoplasia to invasive breast cancer.
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Jain S, Wojdacz TK, Su YH. Challenges for the application of DNA methylation biomarkers in molecular diagnostic testing for cancer. Expert Rev Mol Diagn 2013; 13:283-94. [PMID: 23570406 DOI: 10.1586/erm.13.9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Aberrant DNA methylation is ubiquitous in human cancer and has been shown to occur early during carcinogenesis, thus providing attractive potential biomarkers for the early detection of cancer. The introduction of genome-wide DNA methylation analysis comparing tumor and nonmalignant tissues resulted in the discovery of many regions that undergo aberrant methylation during carcinogenesis. Those regions can potentially be used as biomarkers for cancer detection. However, a biomarker will be useful for screening or early detection of cancer only if it can be detected in a noninvasive or minimally invasive fashion without tissue biopsy. The authors discuss the challenges in translating DNA methylation biomarkers to cancer diagnosis - including obstacles in assay development, tissue-specific methylation load on tumor suppressor genes, detecting markers with sufficient sensitivity and specificity in the periphery, and ways in which these obstacles can be overcome.
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Affiliation(s)
- Surbhi Jain
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 18901, USA
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Sahu A, Sawant S, Mamgain H, Krishna CM. Raman spectroscopy of serum: an exploratory study for detection of oral cancers. Analyst 2013; 138:4161-74. [DOI: 10.1039/c3an00308f] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Rettori MM, de Carvalho AC, Bomfim Longo AL, de Oliveira CZ, Kowalski LP, Carvalho AL, Vettore AL. Prognostic significance of TIMP3 hypermethylation in post-treatment salivary rinse from head and neck squamous cell carcinoma patients. Carcinogenesis 2012; 34:20-7. [PMID: 23042095 DOI: 10.1093/carcin/bgs311] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Hypermethylation in the promoter regions of genes is associated with suppression of gene expression and has been considered a potential molecular marker for several tumor types, including head and neck squamous cell carcinomas (HNSCC). Moreover, hypermethylation can be detected in body fluids such as saliva and can be useful for the diagnosis and prognosis of patients suffering from cancer. To evaluate the hypermethylation profile as a tool for early detection of tumor recurrences, this study determines the methylation status of 24 genes in salivary rinses collected from HNSCC patients at diagnosis, just after the last curative treatment and in the patients' follow-up visit at 6 months after treatment. In the analysis of salivary rinse samples taken at diagnosis of HNSCC patients, five genes (CCNA1, DAPK, DCC, MGMT and TIMP3) showed high specificity and sensitivity. Hypermethylation in any of these five genes was correlated with the presence of tumors in the oral cavity. Patients with TIMP3 methylation in samples collected 6 months after the last curative treatment had lower local recurrence-free survival (P = 0.008). Multivariate analysis confirmed that this hypermethylation pattern remained as an independent prognostic factor for local recurrence (P = 0.025). This study presents, for the first time, the detection of TIMP3 promoter hypermethylation in post-treatment salivary rinse as an independent prognostic maker for local recurrence-free survival in patients with HNSCC, justifying the use of DNA hypermethylation detection in saliva as a tool for identifying and monitoring HNSCC patients' subgroups with high risk of developing local recurrence.
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How Kit A, Nielsen HM, Tost J. DNA methylation based biomarkers: practical considerations and applications. Biochimie 2012; 94:2314-37. [PMID: 22847185 DOI: 10.1016/j.biochi.2012.07.014] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 07/16/2012] [Indexed: 02/06/2023]
Abstract
A biomarker is a molecular target analyzed in a qualitative or quantitative manner to detect and diagnose the presence of a disease, to predict the outcome and the response to a specific treatment allowing personalized tailoring of patient management. Biomarkers can belong to different types of biochemical molecules such as proteins, DNA, RNA or lipids, whereby protein biomarkers have been the most extensively studied and used, notably in blood-based protein quantification tests or immunohistochemistry. The rise of interest in epigenetic mechanisms has allowed the identification of a new type of biomarker, DNA methylation, which is of great potential for many applications. This stable and heritable covalent modification mostly affects cytosines in the context of a CpG dinucleotide in humans. It can be detected and quantified by a number of technologies including genome-wide screening methods as well as locus- or gene-specific high-resolution analysis in different types of samples such as frozen tissues and FFPE samples, but also in body fluids such as urine, plasma, and serum obtained through non-invasive procedures. In some cases, DNA methylation based biomarkers have proven to be more specific and sensitive than commonly used protein biomarkers, which could clearly justify their use in clinics. However, very few of them are at the moment used in clinics and even less commercial tests are currently available. The objective of this review is to discuss the advantages of DNA methylation as a biomarker, the practical considerations for their development, and their use in disease detection, prediction of outcome or treatment response, through multiple examples mainly focusing on cancer, but also to evoke their potential for complex diseases and prenatal diagnostics.
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Affiliation(s)
- Alexandre How Kit
- Laboratory for Functional Genomics, Fondation Jean Dausset - CEPH, 27 rue Juliette Dodu, 75010 Paris, France
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Tumor markers in fine-needle aspiration washout for cervical lymphadenopathy in patients with known malignancy: preliminary study. AJR Am J Roentgenol 2011; 197:W730-6. [PMID: 21940546 DOI: 10.2214/ajr.11.6713] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purposes of our study were to assess whether tumor marker concentration in fine-needle aspiration (FNA) washout from cervical lymph nodes (LNs) differs between metastatic and nonmetastatic LNs and whether tumor marker concentrations in FNA washout can contribute to the diagnosis of metastatic LNs. SUBJECTS AND METHODS Ultrasound-guided FNA was performed for 157 neck nodes in 157 patients, including 136 patients with known malignancy (28 breast, 34 lung, 41 head and neck, seven esophagus, nine cervix, 10 gastrointestinal [GI] tract, and seven ovary cancers) and 21 patients without known malignancy (control group). Immediately after an FNA cytology specimen was obtained, the needle was rinsed with 1 mL of normal saline solution, and variable tumor marker concentrations were measured in the washout: carcinoembryonic antigen (CEA) and cancer antigen (CA) 15-3 for breast; CEA and cytokeratin 19 fragment for lung; squamous cell antigen for head and neck, esophagus, and cervix; CEA and CA 19-9 for GI; CA 125 for ovarian cancer; and all the tumor marker concentrations for the control group. The tumor marker concentration was compared between the metastatic and nonmetastatic LNs in the control group and between the metastatic and nonmetastatic LNs in the known malignancy group, according to the known malignancy. RESULTS At final diagnosis, 104 LNs were metastatic and 53 were nonmetastatic (including 21 LNs in the control group). The tumor marker concentrations of cases with negative or nondiagnostic cytologic results were evaluated. The sensitivity of FNA cytology alone was compared with the combined sensitivity of FNA cytology and tumor marker concentration. Metastatic LNs had higher corresponding FNA tumor marker concentrations than did nonmetastatic LNs in both the control and known malignancy groups (p < 0.05), except for CA 19-9 in GI cancer. Eight of 10 cases (80%) with negative or nondiagnostic cytologic results but metastatic LNs at final diagnosis showed elevated tumor marker concentrations. The sensitivity of FNA cytology (90.4%) increased to 98.1% when combined with tumor marker concentration (p < 0.05). Tumor marker concentrations in FNA washout with cervical metastatic LNs were elevated in comparison with those of nonmetastatic LNs. CONCLUSION Evaluation of tumor marker concentrations in FNA washout could improve the detection of metastatic LNs in patients with known malignancy.
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Carvalho AL, Henrique R, Jeronimo C, Nayak CS, Reddy AN, Hoque MO, Chang S, Brait M, Jiang WW, Kim MM, Claybourne Q, Goldenberg D, Khan Z, Khan T, Westra WH, Sidransky D, Koch W, Califano JA. Detection of promoter hypermethylation in salivary rinses as a biomarker for head and neck squamous cell carcinoma surveillance. Clin Cancer Res 2011; 17:4782-9. [PMID: 21628494 PMCID: PMC3215270 DOI: 10.1158/1078-0432.ccr-11-0324] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
PURPOSE Hypermethylation of tumor suppressor gene promoters has been found in head and neck squamous carcinoma (HNSCC) and other solid tumors. We evaluated these alterations in pretreatment salivary rinses from HNSCC patients by using real-time quantitative methylation-specific PCR (Q-MSP). EXPERIMENTAL DESIGN Pretreatment saliva DNA samples from HNSCC patients were evaluated for patterns of hypermethylation by using Q-MSP. Target tumor suppressor gene promoter regions were selected based on a previous study describing a screening panel for HNSCC in a high-risk population subjects. The selected genes were: DAPK, DCC, MINT-31, TIMP-3, p16, MGMT, CCNA1. RESULTS We analyzed the panel in a cohort of 61 HNSCC patients. Thirty-three of the analyzed patients (54.1%) showed methylation of at least one of the selected genes in the saliva DNA. Pretreatment methylated saliva DNA was not significantly associated with tumor site (P = 0.209) nor clinical stage (P = 0.299). However, local disease control and overall survival were significantly lower in patients presenting hypermethylation in saliva rinses (P = 0.010 and P = 0.015, respectively). Multivariate analysis confirmed that this hypermethylation pattern remained as an independent prognostic factor for local recurrence (HR = 12.2; 95% CI = 1.8-80.6; P = 0.010) and overall survival (HR = 2.8; 95% CI = 1.2-6.5; P = 0.016). CONCLUSIONS We were able to confirm an elevated rate of promoter hypermethylation in HNSCC saliva of patients by using a panel of gene promoters previously described as methylated specifically in HNSCC. Detection of hypermethylation in pretreatment saliva DNA seems to be predictive of local recurrence and overall survival. This finding has potential to influence treatment and surveillance of HNSCC patients.
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Affiliation(s)
- André Lopes Carvalho
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Rui Henrique
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Carmen Jeronimo
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Chetan S. Nayak
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Ashok N. Reddy
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Mohammad O. Hoque
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Steven Chang
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Mariana Brait
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Wei-Wen Jiang
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Michael M. Kim
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Quia Claybourne
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - David Goldenberg
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Zubair Khan
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Tanbir Khan
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - William H. Westra
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - David Sidransky
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Wayne Koch
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Joseph A. Califano
- Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
- Milton J. Dance Head and Neck Center, Greater Baltimore Medical Center, Baltimore, Maryland
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Hypermethylation of CCND2 May Reflect a Smoking-Induced Precancerous Change in the Lung. JOURNAL OF ONCOLOGY 2011; 2011:950140. [PMID: 21577262 PMCID: PMC3090638 DOI: 10.1155/2011/950140] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Revised: 01/12/2011] [Accepted: 01/26/2011] [Indexed: 11/25/2022]
Abstract
It remains unknown whether tobacco smoke induces DNA hypermethylation as an early event in carcinogenesis or as a late event, specific to overt cancer tissue. Using MethyLight assays, we analyzed 316 lung tissue samples from 151 cancer-free subjects (121 ever-smokers and 30 never-smokers) for hypermethylation of 19 genes previously observed to be hypermethylated in nonsmall cell lung cancers. Only APC (39%), CCND2 (21%), CDH1 (7%), and RARB (4%) were hypermethylated in >2% of these cancer-free subjects. CCND2 was hypermethylated more frequently in ever-smokers (26%) than in never-smokers (3%). CCND2 hypermethylation was also associated with increased age and upper lobe sample location. APC was frequently hypermethylated in both ever-smokers (41%) and never-smokers (30%). BVES, CDH13, CDKN2A (p16), CDKN2B, DAPK1, IGFBP3, IGSF4, KCNH5, KCNH8, MGMT, OPCML, PCSK6, RASSF1, RUNX, and TMS1 were rarely hypermethylated (<2%) in all subjects. Hypermethylation of CCND2 may reflect a smoking-induced precancerous change in the lung.
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Demokan S, Chang X, Chuang A, Mydlarz WK, Kaur J, Huang P, Khan Z, Khan T, Ostrow KL, Brait M, Hoque MO, Liegeois NJ, Sidransky D, Koch W, Califano JA. KIF1A and EDNRB are differentially methylated in primary HNSCC and salivary rinses. Int J Cancer 2010; 127:2351-9. [PMID: 20162572 DOI: 10.1002/ijc.25248] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Silencing of tumor suppressor genes plays a vital role in head and neck carcinogenesis. In this study, we aimed to evaluate to the utility of aberrant promoter hypermethylation for detection in a panel of 10 genes (KIF1A, EDNRB, CDH4, TERT, CD44, NISCH, PAK3, VGF, MAL and FKBP4) in head and neck squamous cell carcinoma (HNSCC) via a candidate gene approach. We investigated methylation of the gene promoters by bisulfite modification and quantitative methylation-specific PCR (Q-MSP) in a preliminary study of a limited cohort of salivary rinses from healthy subjects (n = 61) and patients with HNSCC (n = 33). The methylation status of 2 selected genes (EDNRB and KIF1A) were then analyzed in 15 normal mucosa samples from a healthy population, 101 HNSCC tumors and the corresponding salivary rinses from 71 out of the 101 HNSCC patients were collected before treatment. The promoter regions of CDH4, TERT, VGF, MAL, FKBP4, NISCH and PAK3 were methylated in normal salivary rinses while no methylation of CD44 was observed in either normal salivary rinses or tumor samples. However, KIF1A and EDNRB were methylated in 98 and 97% of primary HNSCC tissues respectively and were only methylated in 2 and 6.6% of normal salivary rinses. In addition, KIF1A and EDNRB were methylated in 38 and 67.6% of salivary rinses from HNSCC patients, respectively. Promoter hypermethylation of KIF1A and EDNRB is a frequent event in primary HNSCC, and these genes are preferentially methylated in salivary rinses from HNSCC patients. KIF1A and EDNRB are potential biomarkers for HNSCC detection.
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Affiliation(s)
- Semra Demokan
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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17
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Nassar A. Core needle biopsy versus fine needle aspiration biopsy in breast--a historical perspective and opportunities in the modern era. Diagn Cytopathol 2010; 39:380-8. [PMID: 20949457 DOI: 10.1002/dc.21433] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Accepted: 04/05/2010] [Indexed: 01/08/2023]
Abstract
Breast fine-needle aspiration biopsy (FNAB) by palpation is on the decline, due to its limitations in diagnostic accuracy, decreased sensitivity, and its replacement with core needle biopsy (CNB). Despite its decreasing utility, superficial fine-needle aspiration (FNA) in breast is still the main modality for evaluating metastatic lesions, recurrence, and axillary lymph node metastasis. New modalities including proteomic pattern expression and methylation profiling of breast lesions are other promising techniques that can be used as ancillary tests for refining the diagnosis of breast lesions using FNAB. Image-guided breast FNA proves to be a successful alternative with high sensitivity and specificity. In this review, the advantages, disadvantages, and inherent limitations of breast FNA and CNB, and new advanced techniques are discussed.
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Affiliation(s)
- Aziza Nassar
- Division of Anatomic Pathology, Mayo Clinic, Rochester, MN 55902, USA.
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18
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Potential biomarkers in saliva for oral squamous cell carcinoma. Oral Oncol 2010; 46:226-31. [PMID: 20138569 DOI: 10.1016/j.oraloncology.2010.01.007] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 01/08/2010] [Accepted: 01/11/2010] [Indexed: 12/24/2022]
Abstract
Sensitive and reliable early diagnostic markers for oral squamous cell carcinoma (OSCC) remain unavailable. Early identification of recurrence for OSCC is also a challenge. Unlike the other deep cancers, OSCC is located in oral cavity. The DNA, RNA, and protein derived from the living cancer cells and inflammatory cells then can be conveniently obtained from saliva. High-throughput genomic and proteomic approaches have been carried out to identify the potential biomarkers in body fluids such as saliva and blood for diagnosis and prognosis of OSCC. This article reviewed the recently identified biomarkers from saliva for OSCC. In addition, the biomarkers which have been correlated with OSCC tumor malignancy by molecular pathology analysis are also described. Finally, the potential biomarkers that have been demonstrated to associate with the malignant OSCC may be used for salivary screening for high-risk patients are suggested. This article may help to identify the potential biomarkers for screening and the molecular pathology analysis for high-risk patients of OSCC. Effective screening to identify high-risk patients can allow the clinician to provide the appropriate treatment without delay and to reduce the recurrence of OSCC.
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Kim MJ, Park BW, Lim JB, Kim HS, Kwak JY, Kim SJ, Park SH, Sohn YM, Moon HJ, Kim EK. Axillary lymph node metastasis: CA-15-3 and carcinoembryonic antigen concentrations in fine-needle aspirates for preoperative diagnosis in patients with breast cancer. Radiology 2010; 254:691-7. [PMID: 20123899 DOI: 10.1148/radiol.09091031] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE To assess whether concentrations of the tumor markers breast cancer antigen 15-3 (CA-15-3) and carcinoembryonic antigen (CEA) in fine-needle aspirates (FNAs) differ between benign and malignant lymph nodes and whether FNA concentrations of the tumor markers can improve the sensitivity of axillary lymph node (ALN) FNA in patients with breast cancer. MATERIALS AND METHODS An Institutional Review Board approved this study. All subjects gave written informed consent. Ultrasonographically (US)-guided FNA was performed for 134 ALNs in 134 women (mean age, 49.6 years; range, 28-92 years) with breast cancer. Immediately after obtaining an FNA cytology specimen, the needle was rinsed with 1 mL of normal saline solution. CEA and CA-15-3 concentrations were measured in the washout. Of the 134 ALNs, 86 were malignant and 48 were benign. Sensitivity of FNA cytology alone was compared with the sensitivity of FNA cytology and CEA and CA-15-3 FNA concentrations. RESULTS Patients with a positive metastatic diagnosis had significantly higher FNA concentrations of CEA and CA-15-3 than did those with a negative diagnosis (both P = .02). FNA cytology sensitivity was 87.2%, and the combined sensitivity of FNA cytology and FNA tumor marker concentrations was 96.5% (P = .01). CONCLUSION Evaluation of CEA and CA-15-3 concentrations in FNA could be helpful for the preoperative diagnosis of ALN metastasis in patients with breast cancer. (c) RSNA, 2010.
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Affiliation(s)
- Min Jung Kim
- Department of Radiology, Research Institute of Radiological Science, Department of Surgery, and Department of Laboratory Medicine, Yonsei University Heath System, 250 Seongsan-no, Seodaemun-gu, Seoul 120-752, South Korea
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20
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Mydlarz WK, Hennessey PT, Califano JA. Advances and Perspectives in the Molecular Diagnosis of Head and Neck Cancer. EXPERT OPINION ON MEDICAL DIAGNOSTICS 2010; 4:53-65. [PMID: 20161611 PMCID: PMC2811380 DOI: 10.1517/17530050903338068] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND: Head and neck squamous cell carcinoma (HNSCC) is a debilitating and lethal disease. Despite significant advances in radiotherapy and surgical management, the 5-year survival rate for head and neck cancer has remained a dismal 50%. Advances in early detection have been made, but to improve patient outcomes better biomarkers and targeted therapeutic agents are needed. Novel biomarkers can improve early detection and provide data to optimize therapeutic strategy and patient survival, and could lead to potentially effective targeted therapies. OBJECTIVE: Report the advances in the discovery of novel biomarkers for HNSCC, and review the potential utility of biomarkers in the molecular diagnosis of HNSCC. METHODS: A review of the English literature (PubMed) from 1980 to 2009. RESULTS/CONCLUSION: Currently the most widely accepted biomarker for HNSCC is high risk HPV status. EGFR is another promising biomarker, however, further research is necessary to determine its prognostic benefit. A large number of promising biomarker candidates are currently being evaluated including epigenetic, expression, and genomic based markers. Studies to validate the sensitivity and specificity of these biomarkers in clinical samples from adequately powered prospective cohorts are needed for successful translation of these findings into potential molecular diagnostic, prognostic, and therapeutic biomarkers for HNSCC.
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Affiliation(s)
- Wojciech K. Mydlarz
- Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, MD 21231 United States
| | - Patrick T. Hennessey
- Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, MD 21231 United States
| | - Joseph A. Califano
- Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, MD 21231 United States
- Milton J Dance Head and Neck Center, Greater Baltimore Medical Center, Baltimore, MD 21204, United States
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Mannello F, Medda V, Tonti GA. Protein profile ana lysis of the breast microenvironment to differentiate healthy women from breast cancer patients. Expert Rev Proteomics 2009; 6:43-60. [DOI: 10.1586/14789450.6.1.43] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Aberrant methylation of the Adenomatous Polyposis Coli (APC) gene promoter is associated with the inflammatory breast cancer phenotype. Br J Cancer 2008; 99:1735-42. [PMID: 18841156 PMCID: PMC2584952 DOI: 10.1038/sj.bjc.6604705] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Aberrant methylation of the adenomatous polyposis coli (APC) gene promoter occurs in about 40% of breast tumours and has been correlated with reduced APC protein levels. To what extent epigenetic alterations of the APC gene may differ according to specific breast cancer phenotypes, remains to be elucidated. Our aim was to explore the role of APC methylation in the inflammatory breast cancer (IBC) phenotype. The status of APC gene promoter hypermethylation was investigated in DNA from normal breast tissues, IBC and non-IBC by both conventional and real-time quantitative methylation-specific PCR (MSP). APC methylation levels were compared with APC mRNA and protein levels. Hypermethylation of the APC gene promoter was present in 71% of IBC samples (n=21) and 43% of non-IBC samples (n=30) by conventional MSP (P=0.047). The APC gene also showed an increased frequency of high methylation levels in IBC (in 74% of cases, n=19) vs non-IBC (in 46% of cases, n=35) using a qMSP assay (P=0.048). We observed no significant association between APC methylation levels by qMSP and APC mRNA or protein expression levels. In conclusion, for the first time, we report the association of aberrant methylation of the APC gene promoter with the IBC phenotype, which might be of biological and clinical importance.
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Agyei Frempong MT, Darko E, Addai BW. The use of carbohydrate antigen (CA) 15-3 as a tumor marker in detecting breast cancer. Pak J Biol Sci 2008; 11:1945-1948. [PMID: 18983038 DOI: 10.3923/pjbs.2008.1945.1948] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This study was carried out to determine the sensitivity and specificity of serum CA 15-3 as a marker in detecting and monitoring treatment in, breast cancer patients. One hundred and ten patients comprising 35 known breast cancer patients, 75 suspected cases and 20 controls entered the study. Blood samples were taken before and after treatment from the 35 known cases as well as the 75 suspected cases from which biopsy specimens were also taken. Serum CA 15-3 was measured by BioCheck CA 15-3 Enzyme Immunoassay. There was a significant difference between the concentration of serum CA 15-3 of the 35 known breast cancer patients before and after treatment (p < 0.05). Out of the 75 suspected cases, 46 had breast cancer and 29 had benign breast disease (histologically proven). There was a strong positive correlation between the level of serum CA 15-3 and the histopathology results of the biopsies (r = 0.518). The mean serum CA 15-3 concentration of the 46 patients (80.6 +/- 70.2 U mL(-1)) was significantly higher (p < 0.05) than that of the 29 patients with benign breast disease (12.0 +/- 9.0). The sensitivity and specificity of the serum CA 15-3 in detecting breast cancer was 76.1 and 100%, respectively at a cut-off of 35 U mL(-1). Serum CA 15-3 was found to have a value in the early detection and monitoring of treatment of breast cancer in Ghana.
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Affiliation(s)
- M T Agyei Frempong
- Department of Molecular Medicine, School of Medical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Carvalho AL, Jeronimo C, Kim MM, Henrique R, Zhang Z, Hoque MO, Chang S, Brait M, Nayak CS, Jiang WW, Claybourne Q, Tokumaru Y, Lee J, Goldenberg D, Garrett-Mayer E, Goodman S, Moon CS, Koch W, Westra WH, Sidransky D, Califano JA. Evaluation of promoter hypermethylation detection in body fluids as a screening/diagnosis tool for head and neck squamous cell carcinoma. Clin Cancer Res 2008; 14:97-107. [PMID: 18172258 DOI: 10.1158/1078-0432.ccr-07-0722] [Citation(s) in RCA: 138] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
PURPOSE To evaluate aberrant promoter hypermethylation of candidate tumor suppressor genes as a means to detect epigenetic alterations specific to solid tumors, including head and neck squamous cell carcinoma (HNSCC). EXPERIMENTAL DESIGN Using promoter regions identified via a candidate gene and discovery approach, we evaluated the ability of an expanded panel of CpG-rich promoters known to be differentially hypermethylated in HNSCC in detection of promoter hypermethylation in serum and salivary rinses associated with HNSCC. We did preliminary evaluation via quantitative methylation-specific PCR (Q-MSP) using a panel of 21 genes in a limited cohort of patients with HNSCC and normal controls. Using sensitivity and specificity for individual markers as criteria, we selected panels of eight and six genes, respectively, for use in salivary rinse and serum detection and tested these in an expanded cohort including up to 211 patients with HNSCC and 527 normal controls. RESULTS Marker panels in salivary rinses showed improved detection when compared with single markers, including a panel with 35% sensitivity and 90% specificity and a panel with 85% sensitivity and 30% specificity. A similar pattern was noted in serum panels, including a panel with 84.5% specificity with 50.0% sensitivity and a panel with sensitivity of 81.0% with specificity of 43.5%. We also noted that serum and salivary rinse compartments showed a differential pattern of methylation in normal subjects that influenced the utility of individual markers. CONCLUSIONS Q-MSP detection of HNSCC in serum and salivary rinses using multiple targets offers improved performance when compared with single markers. Compartment-specific methylation in normal subjects affects the utility of Q-MSP detection strategies.
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Affiliation(s)
- André Lopes Carvalho
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland 21287-0910, USA
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25
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Abstract
Creating protein profiles of tissues and tissue fluids, which contain secreted proteins and peptides released from various cells, is critical for biomarker discovery as well as drug and vaccine target selection. It is extremely difficult to obtain pure samples from tissues or tissue fluids, however, and identification of complex protein mixtures is still a challenge for mass spectrometry analysis. Here, we summarize recent advances in techniques for extracting proteins from tissues for mass spectrometry profiling and imaging. We also introduce a novel technique using a capillary ultrafiltration (CUF) probe to enable in vivo collection of proteins from the tissue microenvironment. The CUF probe technique is compared with existing sampling techniques, including perfusion, saline wash, fine-needle aspiration and microdialysis. In this review, we also highlight quantitative mass spectrometric proteomic approaches with, and without, stable-isotope labels. Advances in quantitative proteomics will significantly improve protein profiling of tissue and tissue fluid samples collected by CUF probes.
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Affiliation(s)
- Shi Yang
- The Burnham Institute for Medical Research, Proteomics Facility, La Jolla, CA 92037, USA.
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26
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Sharma G, Mirza S, Prasad CP, Srivastava A, Gupta SD, Ralhan R. Promoter hypermethylation of p16INK4A, p14ARF, CyclinD2 and Slit2 in serum and tumor DNA from breast cancer patients. Life Sci 2007; 80:1873-81. [PMID: 17383681 DOI: 10.1016/j.lfs.2007.02.026] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2006] [Revised: 02/05/2007] [Accepted: 02/16/2007] [Indexed: 01/11/2023]
Abstract
Epigenetic mechanisms such as DNA methylation play important role in cancer. Epigenetic alterations involved in the onset and progression of breast cancer may serve as biomarkers for early detection and prediction of disease prognosis. Furthermore, using body fluids such as serum offers a non-invasive method to procure multiple samples for biomarker analyses. The aim of this study is to determine the correlation between methylation status of multiple cancer genes, p16(INK4A), p14(ARF), Cyclin D2 and Slit2 in invasive ductal carcinoma of the breast and paired serum DNA and clinicopathological parameters. Of the 36 breast cancer patients investigated, 31 (86%) tumors and 30 (83%) paired sera showed methylation of at least one of these 4 genes. Methylation frequencies varied from 27% for CyclinD2, 44% for p16(INK4A), 47% for p14(ARF) to 58% for Slit2. There was concordance between DNA methylation in tumor and paired serum DNA of each gene. This study underscores the potential utility of DNA methylation based screening of serum as a surrogate marker for tumor DNA methylation status of these genes in breast cancer. Further, expression profile of p16(INK4A) could be linked to epigenetic events, thus suggesting this pathway as a potential target for therapeutic strategies based on reversal of epigenetic silencing.
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Affiliation(s)
- Gayatri Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
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27
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Feng Q, Yu M, Kiviat NB. Molecular biomarkers for cancer detection in blood and bodily fluids. Crit Rev Clin Lab Sci 2007; 43:497-560. [PMID: 17050080 DOI: 10.1080/10408360600922632] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cancer is a major and increasing public health problem worldwide. Traditionally, the diagnosis and staging of cancer, as well as the evaluation of response to therapy have been primarily based on morphology, with relatively few cancer biomarkers currently in use. Conventional biomarker studies have been focused on single genes or discrete pathways, but this approach has had limited success because of the complex and heterogeneous nature of many cancers. The completion of the human genome project and the development of new technologies have greatly facilitated the identification of biomarkers for assessment of cancer risk, early detection of primary cancers, monitoring cancer treatment, and detection of recurrence. This article reviews the various approaches used for development of such markers and describes markers of potential clinical interest in major types of cancer. Finally, we discuss the reasons why so few cancer biomarkers are currently available for clinical use.
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Affiliation(s)
- Qinghua Feng
- Department of Pathology, School of Medicine, University of Washington, Seattle, Washington 98109, USA.
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28
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Näthke I. Cytoskeleton out of the cupboard: colon cancer and cytoskeletal changes induced by loss of APC. Nat Rev Cancer 2006; 6:967-74. [PMID: 17093505 DOI: 10.1038/nrc2010] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Mutation of APC (adenomatous polyposis coli) is a common factor in most colorectal cancers. APC has many functions, the most prominent is its capacity to regulate beta-catenin-mediated gene transcription in response to Wnt signalling. Loss of APC leads to deregulated beta-catenin and this is intimately linked with tumour formation. However, recent evidence indicates that the interaction of APC with the cytoskeleton might also contribute to tumour initiation and progression. How does APC interact with the cytoskeleton and how could this play a part in colorectal tumorigenesis?
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Affiliation(s)
- Inke Näthke
- Division of Cell & Developmental Biology, University of Dundee, Dow Street, Dundee DD1 5EH, Scotland, UK.
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