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Piper TB, Nielsen HJ, Christensen IJ. Serological cancer-associated protein biomarker levels at bowel endoscopy: Increased risk of subsequent primary malignancy. Tumour Biol 2022; 44:1-16. [PMID: 35180141 DOI: 10.3233/tub-211501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND It was previously shown in three subpopulations that subjects not identified with colorectal cancer (CRC) at bowel endoscopy, but with increased serological cancer-associated protein biomarker levels had an increased risk of being diagnosed with subsequent malignant diseases. OBJECTIVE The aim of the present study was to perform a pooled analysis of subjects from the three subpopulations and subsequently validate the results in an independent study. The study population denoted the training set includes N = 4,076 subjects with symptoms attributable to CRC and the independent validation set N = 3,774 similar subjects. METHODS Levels of CEA, CA19-9, TIMP-1 and YKL-40 were determined in blood samples collected prior to diagnostic bowel endoscopy. Follow-up of subjects not diagnosed with CRC at endoscopy, was ten years and identified subjects diagnosed with primary intra- or extra-colonic malignant diseases. The primary analysis was time to a newly diagnosed malignant disease and was analyzed with death as a competing risk in the training set. Subjects with HNPCC or FAP were excluded. The cumulated incidence was estimated for each biomarker and in a multivariate model. The resulting model was then validated on the second study population. RESULTS In the training set primary malignancies were identified in 515 (12.6%) of the 4,076 subjects, who had a colorectal endoscopy with non-malignant findings. In detail, 33 subjects were subsequently diagnosed with CRC and 482 subjects with various extra-colonic cancers. Multivariate additive analysis of the dichotomized biomarkers demonstrated that CEA (HR = 1.50, 95% CI:1.21-1.86, p < 0.001), CA19-9 (HR = 1.41, 95% CI:1.10-1.81, p = 0.007) and TIMP-1 (HR = 1.25 95% CI: 1.01-1.54, p = 0.041) were significant predictors of subsequent malignancy. The cumulated incidence at 5 years landmark time was 17% for those subjects with elevated CEA, CA19-9 and TIMP-1 versus 6.7% for those with low levels of all. When the model was applied to the validation set the cumulated 5-year incidence was 10.5% for subjects with elevated CEA, CA19-9 and TIMP-1 and 5.6% for subjects with low levels of all biomarkers. Further analysis demonstrated a significant interaction between TIMP-1 and age in the training set. The age dependency of TIMP-1 indicated a greater risk of malignancy in younger subjects if the biomarker was elevated. This observation was validated in the second set. CONCLUSION Elevated cancer-associated protein biomarker levels in subjects with non-malignant findings at large bowel endoscopy identifies subjects at increased risk of being diagnosed with subsequent primary malignancy. CEA, CA19-9 and TIMP-1 were significant predictors of malignant disease in this analysis. TIMP-1 was found dependent on age. The results were validated in an independent symptomatic population.
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Affiliation(s)
- Thomas B Piper
- Department of Surgical Gastroenterology, Hvidovre Hospital, Hvidovre, Denmark
| | - Hans J Nielsen
- Department of Surgical Gastroenterology, Hvidovre Hospital, Hvidovre, Denmark.,Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Mizuno H, Miyake H, Nagai H, Yoshioka Y, Shibata K, Asai S, Takamizawa J, Yuasa N. Optimal cutoff value of preoperative CEA and CA19-9 for prognostic significance in patients with stage II/III colon cancer. Langenbecks Arch Surg 2021; 406:1987-1997. [PMID: 34148158 DOI: 10.1007/s00423-021-02236-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 06/08/2021] [Indexed: 12/15/2022]
Abstract
PURPOSE This unicentric, retrospective cohort study aimed to identify the optimal cutoff values of preoperative serum carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA19-9) for the prognosis in patients with stage II/III colon cancer. METHODS After excluding 43 patients with CA19-9 levels < 0.2 U/mL, 588 were included. Receiver operating characteristic curves were constructed to determine the optimal cutoff values of CEA and CA 19-9 for disease relapse. RESULTS The median CEA and CA19-9 values were 3.6 (interquartile range: 2.1-7.2 ng/mL) and 14.3 (interquartile range: 8.1-30.0) U/mL, respectively. The optimal cutoff values of CEA and CA19-9 were 5.4 ng/mL and 22.4 U/mL, respectively. A multivariate analysis of relapse-free survival (RFS) showed that cancer stage, CEA, and CA19-9 were significant independent factors. The RFS of patients with stages II and III colon cancer was significantly stratified by CEA (< 5.4/ ≥ 5.4 ng/mL) and CA19-9 (< 22.4/ ≥ 22.4 U/mL). Prognostication based on the reference values (< 5.0 ng/mL for CEA and < 37.0 U/mL for CA19-9) was less significant than that based on the optimal cutoff values. Both elevated CEA and CA19-9 had no value dependency on RFS: RFS curves were similar between extremely elevated CEA (≥ 54.0 ng/ml) and intermediate CEA (5.4-54.0 ng/ml) and between extremely elevated CA19-9 (≥ 224.0 U/ml) and intermediate CA19-9 (22.4-224.0 U/ml). CONCLUSION The optimal cutoff values of preoperative CEA and CA19-9 for RFS were 5.4 ng/ml and 22.4 U/mL, respectively, in patients with stages II and III colon cancer. Further relapse risk stratification is possible using these values.
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Affiliation(s)
- Hironori Mizuno
- Department of Gastrointestinal Surgery, Japanese Red Cross Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Hideo Miyake
- Department of Gastrointestinal Surgery, Japanese Red Cross Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Hidemasa Nagai
- Department of Gastrointestinal Surgery, Japanese Red Cross Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Yuichiro Yoshioka
- Department of Gastrointestinal Surgery, Japanese Red Cross Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Koji Shibata
- Department of Gastrointestinal Surgery, Japanese Red Cross Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Soichiro Asai
- Department of Gastrointestinal Surgery, Japanese Red Cross Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Junichi Takamizawa
- Department of Laboratory Medicine, Japanese Red Cross Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Norihiro Yuasa
- Department of Gastrointestinal Surgery, Japanese Red Cross Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan. .,Department of Laboratory Medicine, Japanese Red Cross Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan.
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Nikbakht HA, Hassanipour S, Shojaie L, Vali M, Ghaffari-fam S, Ghelichi-ghojogh M, Maleki Z, Arab-Zozani M, Abdzadeh E, Delam H, Salehiniya H, Shafiee M, Mohammadi S. Survival Rate of Colorectal Cancer in Eastern Mediterranean Region Countries: A Systematic Review and Meta-Analysis. Cancer Control 2020; 27:1073274820964146. [PMID: 33074714 PMCID: PMC7791530 DOI: 10.1177/1073274820964146] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Colorectal cancer (CRC) is the second most common cause of cancer-related deaths worldwide. Survival rates are among the most important factors in quality control and assessment of treatment protocols. This study was aimed to assess the survival rate of colorectal cancer in Eastern Mediterranean Region Countries. In the present study we comprehensively searched 6 international databases including PubMed/Medline, ProQuest, Scopus, Embase, Web of Knowledge and Google Scholar for published articles until November 2018. The Newcastle-Ottawa Quality Assessment Form for Cohort Studies was applied to evaluate the quality of included studies. The heterogeneity of papers was assessed with the Cochran Test and I-Square statistics. Meta-regression test was performed based on publication year, sample size and Human Development Index (HDI) of each study. Among the total of 1023 titles found in the systematic search, 43 studies were eligible to be included in the present meta-analysis. According to the results, the 1-year, 3-year and 5-year survival rate of patients with Colorectal Cancer was 88.07% (95% CI, 83.22-92.92), 70.67% (95% CI, 66.40-74.93) and, 57.26% (95% CI, 50.43-64.10); respectively. Furthermore, Meta-regressions did not show significant correlations between survival rate and year, sample size or Human Development Index. Survival rates, especially the 5-year survival rate in the EMRO were less than European countries and the USA. Documented and comprehensive evidence-based findings of the present meta-analysis can be used to enhance policies and outcomes of different medical areas including prophylaxis, treatment and health related objectives in colorectal cancer.
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Affiliation(s)
- Hossein-Ali Nikbakht
- Social Determinants of Health Research Center, Health Research
Institute, Babol University of Medical Sciences, Babol, Iran
| | - Soheil Hassanipour
- Gastrointestinal and Liver Diseases Research Center, Guilan
University of Medical Sciences, Rasht, Iran
| | - Layla Shojaie
- Division of GI/Liver, Department of Medicine, Keck school of
Medicine, University of Southern California, Los Angeles, CA, USA
| | - Mohebat Vali
- Student Research Committee, Shiraz University of Medical Sciences,
Shiraz, Iran
| | - Saber Ghaffari-fam
- School of Nursing of Miyandoab, Urmia University of Medical
Sciences, Urmia, Iran
| | | | - Zahra Maleki
- Student Research Committee, Shiraz University of Medical Sciences,
Shiraz, Iran
| | - Morteza Arab-Zozani
- Social Determinants of Health Research Center, Birjand University of
Medical Sciences, Birjand, Iran
| | - Elham Abdzadeh
- GI Cancer Screening and Prevention Research Center, Guilan
University of Medical Sciences, Rasht, Iran
| | - Hamed Delam
- Student Research Committee, Larestan University of Medical Sciences,
Larestan, Iran
| | - Hamid Salehiniya
- Social Determinants of Health Research Center, Birjand University of
Medical Sciences, Birjand, Iran
| | - Maryam Shafiee
- Assistant Professor of Medicine, Shiraz Nephro-Urology Research
Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Salman Mohammadi
- Nutrition Research Center, Shiraz University of Medical Sciences,
Shiraz, Iran
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ÜÇÜNCÜ MZ. Kolorektal Kanserlerin Tanı ve Prognostik Takibinde Eski ve Yeni Serum Biyobelirteçleri: Sistematik İnceleme ve Meta-Analiz. İSTANBUL GELIŞIM ÜNIVERSITESI SAĞLIK BILIMLERI DERGISI 2019. [DOI: 10.38079/igusabder.592956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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5
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Forones NM, Tanaka M, Matos D. Relationship between Mesenteric and Peripheral Blood Levels of CA 19-9 in Patients with Colorectal Cancer. Int J Biol Markers 2018; 16:27-30. [PMID: 11288951 DOI: 10.1177/172460080101600103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction CA19-9 is one of the most important tumor markers used in patients with colorectal cancer, mainly in radical surgery follow-up. Aim: The purpose of this study was to evaluate the preoperative CA19-9 level obtained from a peripheral vein (PV) and compare it to the level obtained from the mesenteric vein (MV). Materials and methods Blood was collected from a PV of the arm and from the MV of 59 patients with colorectal cancer before primary surgery. Of these 59 patients fourteen had stage I disease, 10 stage II, 22 stage III, and 13 stage IV. CA19-9 was determined in serum by immunoenzymatic assay (Abbott Diagnostica). Results Fifteen patients (24%) had elevated serum levels of CA19-9 in the MV and 13 (22%) in the PV. None of the stage I or II patients had elevated serum levels of CA19-9. There were no differences between marker levels in blood collected from the MV or PV, independent of clinical stage. The CA19-9 values obtained from the MV differed significantly in the different stages of the disease according to the Kruskal-Wallis analysis (p=0.026); this difference was not statistically significant (p=0.08) in serum from the PV. There was no correlation between venous infiltration by the tumor and positivity of CA19-9 serum levels collected from the mesenteric vein. We observed a close correlation between the serum levels of CA19-9 collected from the PV and from the MV (r=0.9). Conclusion The current study demonstrates a close correlation between the serum levels of CA19-9 collected from a peripheral vein and from the mesenteric vein. Our results confirmed the poor sensitivity of serum CA19-9 at diagnosis, independent of the collection site.
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Affiliation(s)
- N M Forones
- Oncology Group, Clinical and Surgical Gastroenterology Division, Universidade Federal de São Paulo, Escola Paulista de Medicina, São Paulo, Brasil.
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Behbehani A, Mathew A, Farghaly M, van Dalen A. Reference Levels of the Tumor Markers Carcinoembryonic Antigen, the Carbohydrate Antigens 19-9 and 72-4, and Cytokeratin Fragment 19 Using the ®Elecsys Relecsys 1010 Analyzer in a Normal Population in Kuwait. The Importance of the Determination of Local Reference Levels. Int J Biol Markers 2018. [DOI: 10.1177/172460080201700109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The tumor markers CEA, CA 19-9, CA 72-4 and CYFRA 21-1 were analyzed in a group of apparently healthy subjects (n=232) in Kuwait using the ®Elecsys Relecsys 1010 analyzer. The distribution of the tumour marker levels was analyzed separately in Kuwaitis (n=103), non-Kuwaitis (n=129), smokers (n=68), non-smokers (n=164), males (n=138) and females (n=94). The distribution of CEA was significantly different in Kuwaitis vs. non-Kuwaitis in the total population (p=0.033) and in non-smokers (p=0.049); in males vs. females in the total population (p<0.0001) and in non-smokers (p=0.0002); and in smokers vs. non-smokers in the total population (p<0.0001) using the non-parametric Mann-Whitney U test. None of the other tumour markers showed significant differences in the subgroups. The upper reference level was defined as the 95th percentile of the normal values in each group. A higher reference level of CEA was observed in smokers (vs. non-smokers) in the total population. Also higher reference levels of CEA were observed in males (vs. females) both in the total population and in non-smokers. In the total population the respective reference levels were: CEA: 4.4 μg/L, CA 19-9: 35 kU/L, CA 72.4: 2.4 kU/L, and CYFRA 21.1: 2.1 μg/L. These results were compared with data in the kit inserts and literature data. The impact of 95th percentiles in a local heterogeneous population is discussed.
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Affiliation(s)
- A.I. Behbehani
- Department of Surgery, Faculty of Medicine, Kuwait University
| | - A. Mathew
- Department of Surgery, Faculty of Medicine, Kuwait University
| | - M. Farghaly
- Department of Surgery, Adan Hospital, Kuwait
| | - A. van Dalen
- institute of Tumour Marker Oncology, Gouda - The Netherlands
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7
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Yu Z, Chen Z, Wu J, Li Z, Wu Y. Prognostic value of pretreatment serum carbohydrate antigen 19-9 level in patients with colorectal cancer: A meta-analysis. PLoS One 2017; 12:e0188139. [PMID: 29141049 PMCID: PMC5687748 DOI: 10.1371/journal.pone.0188139] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 11/01/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Carbohydrate antigen 19-9 (CA 19-9) is one of the most frequently used tumor markers for gastrointestinal cancer, particularly for diagnostic purposes. However, its value in predicting prognosis remains controversial. In this study, we sought to clarify this by conducting a meta-analysis of relevant studies. METHODS We systematically searched several databases, including PubMed, EMBASE and Web of Science for articles pertaining to the relationship between pretreatment serum CA 19-9 levels and prognosis in patients with colorectal cancer (CRC). The reported hazard ratios (HR) of overall survival (OS), disease-free survival (DFS), pooled progression-free survival (PFS) and recurrence-free survival (RFS) in the analyzed studies were compared by fixed effects/random effects models. RESULTS Seventeen studies involving 6434 patients with CRC were included in our meta-analysis. A comprehensive analysis of the collected data revealed that high serum CA 19-9 levels before treatment were significantly associated with poor OS (HR: 1.58, 95% CI: 1.36-1.83, P<0.001), DFS (HR: 1.71, 95% CI: 1.38-2.13, P<0.001), PFS (HR: 1.30,95%CI:0.93-1.82, P = 0.121) and RFS (HR: 1.43, 95% CI: 1.11-1.83, P = 0.006). This association between high pretreatment serum CA 19-9 levels and poor survival held true across different geographical regions, analysis types, methods used for HR determination, sample size, and treatment methods. CONCLUSIONS The results of this study indicate that pretreatment serum CA 19-9 level can be used as a prognostic indicator for patients with CRC.
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Affiliation(s)
- Zhan Yu
- Department of general surgery, The Third Affiliated Hospital of Soochow University, Changzhou, P.R. China
| | - Zhen Chen
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, P.R. China
| | - Jian Wu
- Department of general surgery, The Third Affiliated Hospital of Soochow University, Changzhou, P.R. China
- Department of general surgery, The second people's Hospital of Jiangyin, Jiangyin, P.R. China
| | - Zhong Li
- Department of general surgery, The Third Affiliated Hospital of Soochow University, Changzhou, P.R. China
| | - Yugang Wu
- Department of general surgery, The Third Affiliated Hospital of Soochow University, Changzhou, P.R. China
- * E-mail:
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Giessen-Jung C, Nagel D, Glas M, Spelsberg F, Lau-Werner U, Modest DP, Schulz C, Heinemann V, Di Gioia D, Stieber P. Preoperative serum markers for individual patient prognosis in stage I-III colon cancer. Tumour Biol 2015; 36:7897-906. [PMID: 25953265 DOI: 10.1007/s13277-015-3522-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 04/28/2015] [Indexed: 12/20/2022] Open
Abstract
Carcinoembryonic antigen (CEA) remains the only recommended biomarker for follow-up care of colorectal cancer (CRC), but besides CEA, several other serological parameters have been proposed as prognostic markers for CRC. The present retrospective analysis investigates a comprehensive set of serum markers with regard to cancer-specific survival (CSS) and disease-free survival (DFS). A total of 472 patients with colon cancer underwent surgery for curative intent between January 1988 and June 2007. Preoperative serum was analyzed for the following parameters: albumin, alkaline phosphatase (aP), beta-human chorionic gonadotropin (βhCG), bilirubin, cancer antigen 125 (CA 125), cancer antigen 19-9 (CA 19-9), CA 72-4, CEA, C-reactive protein (CRP), cytokeratin-19 soluble fragment (CYFRA 21-1), ferritin, gamma-glutamyltransferase (γGT), glutamate oxaloacetate transaminase (GOT), glutamate pyruvate transaminase (GPT), hemoglobin, haptoglobin, interleukin-6, interleukin-8, creatinine, lactate dehydrogenase (LDH), serum amyloid A (SAA), and 25-hydroxyvitamin D. After a median follow-up period of 5.9 years, the overall 3- and 5-year CSS was 91.7 and 84.9 % and DFS rates were 82.7 % (3 years) and 77.6 % (5 years). Multivariate analyses confirmed preoperative CEA as an independent prognostic factor with regard to CSS and DFS. CA 19-9 and γGT also provided prognostic value for CSS and DFS, respectively. Younger age was negatively associated with DFS. According to UICC stage, CEA provided significant prognostic value with regard to CSS and DFS, while CA 19-9 was only prognostic for CSS. Combined analysis is able to identify patients with favorable prognosis. In addition to tumor baseline parameters, preoperative CEA could be confirmed as prognostic marker in colon cancer. CA 19-9 and γGT also provide additional prognostic value with regard to survival and recurrence in stage III and stage I disease, respectively. The combined use of CEA together with CA 19-9 and γGT improve risk-adapted post-op surveillance.
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Affiliation(s)
- Clemens Giessen-Jung
- Department of Medical Oncology, Klinikum Grosshadern and Comprehensive Cancer Center, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany.
| | - Dorothea Nagel
- Institute of Laboratory Medicine, Klinikum Grosshadern, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Maria Glas
- Department of Medical Oncology, Klinikum Grosshadern and Comprehensive Cancer Center, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Fritz Spelsberg
- Department of Surgery, Klinikum Grosshadern, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Ulla Lau-Werner
- Department of Surgery, Klinikum Grosshadern, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Dominik Paul Modest
- Department of Medical Oncology, Klinikum Grosshadern and Comprehensive Cancer Center, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Christoph Schulz
- Department of Medical Oncology, Klinikum Grosshadern and Comprehensive Cancer Center, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Volker Heinemann
- Department of Medical Oncology, Klinikum Grosshadern and Comprehensive Cancer Center, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Dorit Di Gioia
- Department of Medical Oncology, Klinikum Grosshadern and Comprehensive Cancer Center, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Petra Stieber
- Institute of Laboratory Medicine, Klinikum Grosshadern, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany
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Liu Z, Zhang Y, Niu Y, Li K, Liu X, Chen H, Gao C. A systematic review and meta-analysis of diagnostic and prognostic serum biomarkers of colorectal cancer. PLoS One 2014; 9:e103910. [PMID: 25105762 PMCID: PMC4126674 DOI: 10.1371/journal.pone.0103910] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 07/08/2014] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Our systematic review summarizes the evidence concerning the accuracy of serum diagnostic and prognostic tests for colorectal cancer (CRC). METHODS The databases MEDLINE and EMBASE were searched iteratively to identify the relevant literature for serum markers of CRC published from 1950 to August 2012. The articles that provided adequate information to meet the requirements of the meta-analysis of diagnostic and prognostic markers were included. A 2-by-2 table of each diagnostic marker and its hazard ratio (HR) and the confidence interval (CI) of each prognostic marker was directly or indirectly extracted from the included papers, and the pooled sensitivity and specificity of the diagnostic marker and the pooled HR and the CI of the prognostic marker were subsequently calculated using the extracted data. RESULTS In total, 104 papers related to the diagnostic markers and 49 papers related to the prognostic serum markers of CRC were collected, and only 19 of 92 diagnostic markers were investigated in more than two studies, whereas 21 out of 44 prognostic markers were included in two or more studies. All of the pooled sensitivities of the diagnostic markers with > = 3 repetitions were less than 50%, and the meta-analyses of the prognostic markers with more than 3 studies were performed, VEGF with highest (2.245, CI: 1.347-3.744) and MMP-7 with lowest (1.099, CI: 1.018-1.187)) pooled HRs are presented. CONCLUSIONS The quality of studies addressing the diagnostic and prognostic accuracy of the tests was poor, and the results were highly heterogeneous. The poor characteristics indicate that these tests are of little value for clinical practice.
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Affiliation(s)
- Zhongyu Liu
- Anal-Colorectal Surgery Institute, Central Hospital of PLA, Luoyang, Henan, China
| | - Yingchong Zhang
- Chengdu Municipal Centers for Disease Control & Prevention, Chengdu, China
| | - Yulong Niu
- College of Life Science, Sichuan University, Chengdu, China
| | - Ke Li
- Anal-Colorectal Surgery Institute, Central Hospital of PLA, Luoyang, Henan, China
| | - Xin Liu
- Anal-Colorectal Surgery Institute, Central Hospital of PLA, Luoyang, Henan, China
| | - Huijuan Chen
- Anal-Colorectal Surgery Institute, Central Hospital of PLA, Luoyang, Henan, China
| | - Chunfang Gao
- Anal-Colorectal Surgery Institute, Central Hospital of PLA, Luoyang, Henan, China
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10
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Giessen C, Nagel D, Glas M, Spelsberg F, Lau-Werner U, Modest DP, Michl M, Heinemann V, Stieber P, Schulz C. Evaluation of preoperative serum markers for individual patient prognosis in stage I-III rectal cancer. Tumour Biol 2014; 35:10237-48. [PMID: 25027407 DOI: 10.1007/s13277-014-2338-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 07/09/2014] [Indexed: 12/13/2022] Open
Abstract
Several independent serum biomarkers have been proposed as prognostic and/or predictive markers for colorectal cancer (CRC). To this date, carcinoembryonic antigen (CEA) remains the only recommended serological CRC biomarker. The present retrospective analysis investigates the prognostic value of several serum markers. A total of 256 patients with rectal cancer underwent surgery for curative intent in a university cancer center between January 1988 and June 2007. Preoperative serum was retrospectively analyzed for albumin, alkaline phosphatase (aP), beta-human chorionic gonadotropin, bilirubin, CA 125, cancer antigen 19-9, cancer antigen 72-4 (CA 72-4), CEA, CRP, CYFRA 21-1, ferritin, gamma-glutamyl transpeptidase, glutamate oxaloacetate transanunase, glutamate pyruvate transaminase, hemoglobin, haptoglobin, interleukin-6, interleukin-8, creatinine, lactate-dehydrogenase, serum amyloid A (SAA), and 25-hydroxyvitamin D. Cancer-specific survival (CSS) and disease-free survival (DFS) were estimated. Median follow-up time was 8.4 years. Overall 3- and 5-year CSS was 88.6 and 78.9 %, respectively. DFS rates were 72.8 % (3 years) and 67.5 % (5 years). Univariate analysis of CSS indicated aP, CA 72-4, CEA, and SAA as prognostic factors, while aP, CEA, and SAA were also prognostic with regard to DFS. Multivariate analysis confirmed SAA together with T and N stage as prognostic factors. According to UICC stage, CEA and SAA add prognostic value in stages II and III with regard to DFS and CSS, respectively. The combined use of CEA and SAA is able to identify patients with favorable and poor prognosis. In addition to tumor baseline parameters, routine analysis of SAA together with CEA provided markedly improved prognostic value on CSS and DFS in resected rectal cancer.
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Affiliation(s)
- Clemens Giessen
- Department of Medical Oncology, Klinikum Grosshadern and Comprehensive Cancer Center, University of Munich, Marchioninistrasse 15, 81377, Munich, Germany,
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Sturgeon CM, Duffy MJ, Stenman UH, Lilja H, Brünner N, Chan DW, Babaian R, Bast RC, Dowell B, Esteva FJ, Haglund C, Harbeck N, Hayes DF, Holten-Andersen M, Klee GG, Lamerz R, Looijenga LH, Molina R, Nielsen HJ, Rittenhouse H, Semjonow A, Shih IM, Sibley P, Sölétormos G, Stephan C, Sokoll L, Hoffman BR, Diamandis EP. National Academy of Clinical Biochemistry Laboratory Medicine Practice Guidelines for Use of Tumor Markers in Testicular, Prostate, Colorectal, Breast, and Ovarian Cancers. Clin Chem 2008; 54:e11-79. [DOI: 10.1373/clinchem.2008.105601] [Citation(s) in RCA: 458] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract
Background: Updated National Academy of Clinical Biochemistry (NACB) Laboratory Medicine Practice Guidelines for the use of tumor markers in the clinic have been developed.
Methods: Published reports relevant to use of tumor markers for 5 cancer sites—testicular, prostate, colorectal, breast, and ovarian—were critically reviewed.
Results: For testicular cancer, α-fetoprotein, human chorionic gonadotropin, and lactate dehydrogenase are recommended for diagnosis/case finding, staging, prognosis determination, recurrence detection, and therapy monitoring. α-Fetoprotein is also recommended for differential diagnosis of nonseminomatous and seminomatous germ cell tumors. Prostate-specific antigen (PSA) is not recommended for prostate cancer screening, but may be used for detecting disease recurrence and monitoring therapy. Free PSA measurement data are useful for distinguishing malignant from benign prostatic disease when total PSA is <10 μg/L. In colorectal cancer, carcinoembryonic antigen is recommended (with some caveats) for prognosis determination, postoperative surveillance, and therapy monitoring in advanced disease. Fecal occult blood testing may be used for screening asymptomatic adults 50 years or older. For breast cancer, estrogen and progesterone receptors are mandatory for predicting response to hormone therapy, human epidermal growth factor receptor-2 measurement is mandatory for predicting response to trastuzumab, and urokinase plasminogen activator/plasminogen activator inhibitor 1 may be used for determining prognosis in lymph node–negative patients. CA15-3/BR27–29 or carcinoembryonic antigen may be used for therapy monitoring in advanced disease. CA125 is recommended (with transvaginal ultrasound) for early detection of ovarian cancer in women at high risk for this disease. CA125 is also recommended for differential diagnosis of suspicious pelvic masses in postmenopausal women, as well as for detection of recurrence, monitoring of therapy, and determination of prognosis in women with ovarian cancer.
Conclusions: Implementation of these recommendations should encourage optimal use of tumor markers.
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Affiliation(s)
- Catharine M Sturgeon
- Department of Clinical Biochemistry, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Michael J Duffy
- Department of Pathology and Laboratory Medicine, St Vincent’s University Hospital and UCD School of Medicine and Medical Science, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - Ulf-Håkan Stenman
- Department of Clinical Chemistry, Helsinki University Central Hospital, Helsinki, Finland
| | - Hans Lilja
- Departments of Clinical Laboratories, Urology, and Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY
| | - Nils Brünner
- Section of Biomedicine, Department of Veterinary Pathobiology, Faculty of Life Sciences, University of Copenhagen, Denmark
| | - Daniel W Chan
- Departments of Pathology and Oncology, Johns Hopkins Medical Institutions, Baltimore, MD
| | - Richard Babaian
- Department of Urology, The University of Texas Anderson Cancer Center, Houston, TX
| | - Robert C Bast
- Department of Experimental Therapeutics, University of Texas Anderson Cancer Center, Houston, Texas, USA
| | | | - Francisco J Esteva
- Departments of Breast Medical Oncology, Molecular and Cellular Oncology, University of Texas M.D. Anderson Cancer Center, Houston TX
| | - Caj Haglund
- Department of Surgery, Helsinki University Central Hospital, Helsinki, Finland
| | - Nadia Harbeck
- Frauenklinik der Technischen Universität München, Klinikum rechts der Isar, Munich, Germany
| | - Daniel F Hayes
- Breast Oncology Program, University of Michigan Comprehensive Cancer Center, Ann Arbor, MI
| | - Mads Holten-Andersen
- Section of Biomedicine, Department of Veterinary Pathobiology, Faculty of Life Sciences, University of Copenhagen, Denmark
| | - George G Klee
- Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN
| | - Rolf Lamerz
- Department of Medicine, Klinikum of the University of Munich, Grosshadern, Germany
| | - Leendert H Looijenga
- Laboratory of Experimental Patho-Oncology, Erasmus MC-University Medical Center Rotterdam, and Daniel den Hoed Cancer Center, Rotterdam, the Netherlands
| | - Rafael Molina
- Laboratory of Biochemistry, Hospital Clinico Provincial, Barcelona, Spain
| | - Hans Jørgen Nielsen
- Department of Surgical Gastroenterology, Hvidovre Hospital, Copenhagen, Denmark
| | | | - Axel Semjonow
- Prostate Center, Department of Urology, University Clinic Muenster, Muenster, Germany
| | - Ie-Ming Shih
- Departments of Pathology and Oncology, Johns Hopkins Medical Institutions, Baltimore, MD
| | - Paul Sibley
- Siemens Medical Solutions Diagnostics, Glyn Rhonwy, Llanberis, Gwynedd, UK
| | | | - Carsten Stephan
- Department of Urology, Charité Hospital, Universitätsmedizin Berlin, Berlin, Germany
| | - Lori Sokoll
- Departments of Pathology and Oncology, Johns Hopkins Medical Institutions, Baltimore, MD
| | - Barry R Hoffman
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, and Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Eleftherios P Diamandis
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, and Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
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12
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Takagawa R, Fujii S, Ohta M, Nagano Y, Kunisaki C, Yamagishi S, Osada S, Ichikawa Y, Shimada H. Preoperative serum carcinoembryonic antigen level as a predictive factor of recurrence after curative resection of colorectal cancer. Ann Surg Oncol 2008; 15:3433-9. [PMID: 18846401 DOI: 10.1245/s10434-008-0168-8] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2008] [Revised: 08/22/2008] [Accepted: 08/22/2008] [Indexed: 01/12/2023]
Abstract
BACKGROUND We evaluated the prognostic value of the preoperative serum carcinoembryonic antigen (CEA) level in patients with colorectal cancer (CRC). PATIENTS AND METHODS The study group comprised 638 patients. The optimal cutoff value for the preoperative serum CEA level was determined. Predictive factors of recurrence were evaluated using multivariate analyses. The relapse-free time was investigated according to the CEA level. RESULTS All patients underwent potentially curative resection for CRC without distant metastasis, classified as stage I, II, or III. The optimal cutoff value for preoperative serum CEA level was 10 ng/ml. Elevated preoperative serum CEA level was observed in 92 patients. Multivariate analysis identified tumor-node-metastasis (TNM) stage and preoperative serum CEA level as independent predictive factors of recurrence. The relapse-free survival between CEA levels >10 ng/ml and <10 ng/ml significantly differed in patients with stage II and III. However, there was no significant difference in relapse-free survival between CEA levels >10 ng/ml and <10 ng/ml in patients with stage I. CONCLUSION Preoperative serum CEA is a reliable predictive factor of recurrence after curative surgery in CRC patients and a useful indicator of the optimal treatment after resection, particularly for cases classified as stage II or stage III.
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Affiliation(s)
- Ryo Takagawa
- Department of Surgery, Gastroenterological Center, Yokohama City University, Yokohama, Japan.
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Gasser M, Gerstlauer C, Grimm M, Bueter M, Lebedeva T, Lutz J, Maeder U, Ribas C, Ribas C, Nichiporuk E, Thalheimer A, Heemann U, Thiede A, Meyer D, Waaga-Gasser AM. Comparative analysis of predictive biomarkers for therapeutical strategies in colorectal cancer. Ann Surg Oncol 2007; 14:1272-84. [PMID: 17211733 DOI: 10.1245/s10434-006-9155-0] [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] [Received: 06/04/2006] [Revised: 06/04/2006] [Accepted: 06/05/2006] [Indexed: 01/11/2023]
Abstract
BACKGROUND Prognostic information regarding the risk of postoperative tumor recurrence defined by a profile of serological, morphological and/or molecular markers can have potential value, particularly for patients with colorectal carcinoma (CRC) of the International Union Against Cancer (UICC) stage II/III who may benefit from adjuvant chemotherapy after surgery. METHODS A retrospective study of 783 patients with CRC (UICC I-III) including a subgroup analysis of 116 subjects was conducted to determine preoperative serum carcinoembryonic antigen (CEA), carbohydrate antigen (CA) 19-9, and p53 serum levels. In addition, protein and gene expression of p53, CEA, and adenomatous polyposis coli (APC) was assessed in the tumors of those patients. The values of all serological, morphological, and molecular parameters were correlated with clinicopathological characteristics for their predictive value of tumor recurrence over a mean follow-up period of 32 +/- 6.2 months. RESULTS Serum CEA but not CA 19-9 or p53 was a significant prognostic factor for disease-free survival, along with UICC and T/N stage. When comparing elevated CEA, CA 19-9, and p53 serum levels with expression of the markers in the tumors, their overall expression was found to be 61.3% in the serum versus 93.5% in the tumor in analyzed patients (n = 116). In particular, all patients in UICC stages I-III who demonstrated at least three elevated markers (CEA/CA 19-9/p53) in serum and/or in the tumor presented with tumor recurrence/metastases. CONCLUSION Overall increased p53, CEA, and CA 19-9 serum levels and their marker expression in the tumor may be used at the time of primary tumor removal for defining patients at risk for tumor recurrence.
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Affiliation(s)
- Martin Gasser
- Department of Surgery I, University of Wuerzburg, Oberduerrbacherstr. 6, 97080 Wuerzburg, Germany
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Weissenberger C, Geissler M, Otto F, Barke A, Henne K, von Plehn G, Rein A, Muller C, Bartelt S, Henke M. Anemia and long-term outcome in adjuvant and neoadjuvant radiochemotherapy of stage II and III rectal adenocarcinoma: The Freiburg experience (1989-2002). World J Gastroenterol 2006; 12:1849-58. [PMID: 16609990 PMCID: PMC4087509 DOI: 10.3748/wjg.v12.i12.1849] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the long-term outcome of standard 5-FU based adjuvant or neoadjuvant radiochemotherapy and to identify the predictive factors, especially anemia before and after radiotherapy as well as hemoglobin increase or decrease during radiotherapy.
METHODS: Two hundred and eighty-six patients with Union International Contre Cancer (UICC) stage II and III rectal adenocarcinomas, who underwent resection by conventional surgical techniques (low anterior or abdominoperineal resection), received either postoperative (n = 233) or preoperative (n = 53) radiochemotherapy from January 1989 until July 2002. Overall survival (OAS), cancer-specific survival (CSS), disease-free survival (DFS), local-relapse-free (LRS) and distant-relapse-free survival (DRS) were evaluated using Kaplan-Meier, Log-rank test and Cox’s proportional hazards as statistical methods. Multivariate analysis was used to identify prognostic factors. Median follow-up time was 8 years.
RESULTS: Anemia before radiochemotherapy was an independent prognostic factor for improved DFS (risk ratio 0.76, P = 0.04) as well as stage, grading, R status (free radial margins), type of surgery, carcinoembryonic antigen (CEA) levels, and gender. The univariate analysis revealed that anemia was associated with impaired LRS (better local control) but with improved DFS. In contrast, hemoglobin decrease during radiotherapy was an independent risk factor for DFS (risk ratio 1.97, P = 0.04). During radiotherapy, only 30.8% of R0-resected patients suffered from hemoglobin decrease compared to 55.6% if R1/2 resection was performed (P = 0.04). The 5-year OAS, CSS, DFS, LRS and DRS were 47.0%, 60.0%, 41.4%, 67.2%, and 84.3%, respectively. Significant differences between preoperative and postoperative radiochemotherapy were not found.
CONCLUSION: Anemia before radiochemotherapy and hemoglobin decrease during radiotherapy have no predictive value for the outcome of rectal cancer. Stage, grading, R status (free radial margins), type of surgery, CEA levels, and gender have predictive value for the outcome of rectal cancer.
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15
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Chen CC, Yang SH, Lin JK, Lin TC, Chen WS, Jiang JK, Wang HS, Chang SC. Is it reasonable to add preoperative serum level of CEA and CA19-9 to staging for colorectal cancer? J Surg Res 2005; 124:169-74. [PMID: 15820244 DOI: 10.1016/j.jss.2004.08.013] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2004] [Indexed: 12/13/2022]
Abstract
BACKGROUND Carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA19-9) are the most common tumor markers for colorectal cancer. The aim of this study was to evaluate the possibility of adding them into the current staging system by analyzing their prognostic significance. MATERIALS AND METHODS The study population was patients (n = 574, 67.1 +/- 11.3 years old, 397 males) who received potentially curative resection of colorectal adenocarcinoma (stage I-III) between January 1994 and August 2002, including preoperative measurements of CEA and CA19-9. Clinicopathological characteristics and associated follow-up data were retrospectively collected by reviewing available medical charts. CEA higher or equal to 5 ng/ml was defined as abnormal (CEA+). The CA19-9 level was set at 37 U/ml (CA19-9+). Patients were further divided into four groups (1, 2, 3, 4) according to the results of these two markers (CEA/CA19-9: -/-, -/+, +/-, and +/+). Survival was analyzed for AJCC staging, CEA (+) versus (-), CA19-9 (+) versus (-), and four groups. RESULTS CEA and CA19-9 survival curves were not significantly different. However, the combined use of the two markers revealed a significant survival benefit (P = 0.035) of group 1 ("-" for both markers) over 4 ("+" for both) in stage II. CONCLUSIONS Patients with an elevated level of both CEA and CA19-9 in stage II of colorectal cancer have a significantly poorer prognosis than those with normal levels of these markers. We recommend adding both CEA and CA19-9 to the current staging system.
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Affiliation(s)
- Chien-Chih Chen
- Division of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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16
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Duffy MJ, van Dalen A, Haglund C, Hansson L, Klapdor R, Lamerz R, Nilsson O, Sturgeon C, Topolcan O. Clinical utility of biochemical markers in colorectal cancer: European Group on Tumour Markers (EGTM) guidelines. Eur J Cancer 2003; 39:718-27. [PMID: 12651195 DOI: 10.1016/s0959-8049(02)00811-0] [Citation(s) in RCA: 247] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In recent years, numerous serum and cell/tissue-based markers have been described for colorectal cancer (CRC). The aim of this article was to provide guidelines for the routine clinical use of some of these markers. Lack of sensitivity and specificity preclude the use of any available serum markers such as carcinoembryonic antigen (CEA), CA 19-9, CA 242, CA 72-4, tissue polypeptide antigen (TPA) or tissue polypeptide-specific antigen (TPS) for the early detection of CRC. However, preoperative measurement of CEA is desirable as this may give independent prognostic information, help with surgical management and provide a baseline level for subsequent determinations. For patients with stage 2 (Dukes' B) and 3 (Dukes' C) disease who may be candidates for liver resection, CEA levels should be measured every 2-3 months for at least 3 years after diagnosis. For monitoring treatment of advanced disease, CEA should also be tested every 2-3 months. Insufficient evidence is presently available to recommend the routine use of other serum markers for monitoring purposes. Similarly, the new cell and tissue-based markers (e.g, ras, P53) cannot yet be recommended for routine clinical use.
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Affiliation(s)
- M J Duffy
- Department of Surgery, Conway Institute of Biomolecular and Biomedical Research, University College Dublin 4 and Nuclear Medicine, St Vincent's University Hospital, 4, Dublin, Ireland.
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van Ruth S, Hart AAM, Bonfrer JMG, Verwaal VJ, Zoetmulder FAN. Prognostic value of baseline and serial carcinoembryonic antigen and carbohydrate antigen 19.9 measurements in patients with pseudomyxoma peritonei treated with cytoreduction and hyperthermic intraperitoneal chemotherapy. Ann Surg Oncol 2002; 9:961-7. [PMID: 12464587 DOI: 10.1007/bf02574513] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Tumor markers are useful for diagnosis and follow-up. We studied the prognostic value of baseline and serial carcinoembryonic antigen (CEA) and carbohydrate antigen 19.9 (CA19.9) measurements in patients with pseudomyxoma peritonei treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC). METHODS Sixty-three patients with pseudomyxoma peritonei were treated with cytoreductive surgery and HIPEC. The tumor markers CEA and CA19.9 were collected before therapy and at 3-month intervals during follow-up. RESULTS Preoperative CEA and CA19.9 levels were increased in, respectively, 75% and 58% of the patients. Baseline tumor marker values were related to the extent of tumor. Immediately after HIPEC, both tumor markers decreased markedly (P <.0001). CA19.9 was shown to be a more useful tumor marker than CEA for follow-up. During follow-up, a high absolute CA19.9 level (P =.0005) was predictive for imminent recurrence. Patients who never attained a normal CA19.9 level showed a higher recurrence rate at 1 year (53%; SE, 15%), in comparison to patients who did so (6%; SE 4%). The median lead time of increased CA19.9 to recurrence was 9 months. CONCLUSIONS The measurement of the tumor marker CA19.9 is useful in evaluating therapy in patients with pseudomyxoma peritonei treated with cytoreductive surgery and HIPEC. CA19.9 is a prognostic factor for predicting recurrent disease.
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Affiliation(s)
- S van Ruth
- Department of Surgical Oncology, The Netherlands Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.
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