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Kuriki Y, Sogawa M, Komatsu T, Kawatani M, Fujioka H, Fujita K, Ueno T, Hanaoka K, Kojima R, Hino R, Ueo H, Ueo H, Kamiya M, Urano Y. Modular Design Platform for Activatable Fluorescence Probes Targeting Carboxypeptidases Based on ProTide Chemistry. J Am Chem Soc 2024; 146:521-531. [PMID: 38110248 DOI: 10.1021/jacs.3c10086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Carboxypeptidases (CPs) are a family of hydrolases that cleave one or more amino acids from the C-terminal of peptides or proteins and play indispensable roles in various physiological and pathological processes. However, only a few highly activatable fluorescence probes for CPs have been reported, and there is a need for a flexibly tunable molecular design platform to afford a range of fluorescence probes for CPs for biological and medical research. Here, we focused on the unique activation mechanism of ProTide-based prodrugs and established a modular design platform for CP-targeting florescence probes based on ProTide chemistry. In this design, probe properties such as fluorescence emission wavelength, reactivity/stability, and target CP can be readily tuned and optimized by changing the four probe modules: the fluorophore, the substituent on the phosphorus atom, the linker amino acid at the P1 position, and the substrate amino acid at the P1' position. In particular, switching the linker amino acid at position P1 enabled us to precisely optimize the reactivity for target CPs. As a proof-of-concept, we constructed probes for carboxypeptidase M (CPM) and prostate-specific membrane antigen (also known as glutamate carboxypeptidase II). The developed probes were applicable for the imaging of CP activities in live cells and in clinical specimens from patients. This design strategy should be useful in studying CP-related biological and pathological phenomena.
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Affiliation(s)
- Yugo Kuriki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mari Sogawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toru Komatsu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Minoru Kawatani
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259, Nagatsuda-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Hiroyoshi Fujioka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259, Nagatsuda-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Kyohhei Fujita
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tasuku Ueno
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kenjiro Hanaoka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryosuke Kojima
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Rumi Hino
- Department of Sports and Health Science, Daito Bunka University, 560 Iwadono, Higashimatsuyama, Saitama 355-8501, Japan
| | - Hiroki Ueo
- Ueo Breast Cancer Hospital, 1-3-5 Futamatacho, Oita, Oita 870-0887, Japan
| | - Hiroaki Ueo
- Ueo Breast Cancer Hospital, 1-3-5 Futamatacho, Oita, Oita 870-0887, Japan
| | - Mako Kamiya
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259, Nagatsuda-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
- Living Systems Materialogy (LiSM) Research Group, International Research Frontiers Initiative (IRFI), Tokyo Institute of Technology, 4259, Nagatsuda-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Yasuteru Urano
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Plasma biomarkers TAP, CPA1, and CPA2 for the detection of pancreatic injury in rat: the development of a novel multiplex IA-LC-MS/MS assay and biomarker performance evaluation. Arch Toxicol 2023; 97:769-785. [PMID: 36481916 PMCID: PMC9968696 DOI: 10.1007/s00204-022-03425-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/16/2022] [Indexed: 12/13/2022]
Abstract
Drug-induced pancreatic injury (DIPI) is an issue seen in drug development both in nonclinical and clinical contexts. DIPI is typically monitored by measurement of lipase and/or amylase, however, both enzymes lack sensitivity and specificity. Although candidate protein biomarkers specific to pancreas exist, antibody-based assay development is difficult due to their small size or the rapid cleavage by proteolytic enzymes released during pancreatic injury. Here we report the development of a novel multiplexed immunoaffinity-based liquid chromatography mass spectrometric assay (IA-LC-MS/MS) for trypsinogen activation peptide (TAP) and carboxypeptidases A1 and A2 (CPA1, CPA2). This method is based on the enzymatic digestion of the target proteins, immunoprecipitation of the peptides with specific antibodies and LC-MS/MS analysis. This assay was used to detect TAP, CPA1, and CPA2 in 470 plasma samples collected from 9 in-vivo rat studies with pancreatic injury and 8 specificity studies with injury in other organs to assess their performance in monitoring exocrine pancreas injury. The TAP, CPA1, and CPA2 response was compared to histopathology, lipase, amylase and microRNA217. In summary, TAP, CPA1, and CPA2 proteins measured in rat plasma were sensitive and specific biomarkers for monitoring drug-induced pancreatic injury; outperforming lipase and amylase both by higher sensitivity of detection and by sustained increases in plasma observed over a longer time period. These protein-based assays and potentially others under development, are valuable tools for use in nonclinical drug development and as future translatable biomarkers for assessment in clinical settings to further improve patient safety.
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Tanaka H, Tamura K, Abe T, Yoshida T, Macgregor-Das A, Dbouk M, Blackford AL, Borges M, Lennon AM, He J, Burkhart R, Canto MI, Goggins M. Serum Carboxypeptidase Activity and Genotype-Stratified CA19-9 to Detect Early-Stage Pancreatic Cancer. Clin Gastroenterol Hepatol 2022; 20:2267-2275.e2. [PMID: 34648951 PMCID: PMC9001752 DOI: 10.1016/j.cgh.2021.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/27/2021] [Accepted: 10/05/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Serum diagnostic markers of early-stage pancreatic ductal adenocarcinoma (PDAC) are needed, especially for stage I disease. As tumors grow and cause pancreatic atrophy, markers derived from pancreatic parenchyma such as serum carboxypeptidase A (CPA) activity lose diagnostic performance. We evaluated, with CA19-9, serum CPA as a marker of early pancreatic cancer. METHODS Serum CPA activity levels were measured in 345 controls undergoing pancreatic surveillance, divided into 2 sets, set 1 being used to establish a reference range. Variants within the CPA1 locus were sought for their association with pancreatic CPA1 expression to determine if such variants associated with serum CPA levels. A total of 190 patients with resectable PDAC were evaluated. RESULTS Among controls, those having 1 or more minor alleles of CPA1 variants rs6955723 or rs2284682 had significantly higher serum CPA levels than did those without (P = .001). None of the PDAC cases with pancreatic atrophy had an elevated CPA. Among 122 PDAC cases without atrophy, defining serum CPA diagnostic cutoffs by a subject's CPA1 variants yielded a diagnostic sensitivity of 18% at 99% specificity (95% confidence interval [CI], 11.7-26) (vs 11.1% sensitivity using a uniform diagnostic cutoff); combining CPA with variant-stratified CA19-9 yielded a sensitivity of 68.0% (95% CI, 59.0-76.2) vs 63.1% (95% CI, 53.9- 71.7) for CA19-9 alone; and among stage I PDAC cases, diagnostic sensitivity was 51.9% (95% CI, 31.9-71.3) vs 37.0% (95% CI, 19.4-57.6) for CA19-9 alone. In the validation control set, the variant-stratified diagnostic cutoff yielded a specificity of 98.2%. CONCLUSION Serum CPA activity has diagnostic utility before the emergence of pancreatic atrophy as a marker of localized PDAC, including stage I disease.
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Affiliation(s)
- Haruyoshi Tanaka
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Koji Tamura
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Toshiya Abe
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Takeichi Yoshida
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Anne Macgregor-Das
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Mohamad Dbouk
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Amanda L Blackford
- Department of Oncology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Michael Borges
- Department of Surgery, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Anne Marie Lennon
- Department of Surgery, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland; Department of Medicine, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Jin He
- Department of Surgery, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Richard Burkhart
- Department of Surgery, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Marcia Irene Canto
- Department of Oncology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland; Department of Medicine, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Michael Goggins
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland; Department of Oncology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland; Department of Medicine, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland.
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Qian L, Li Q, Baryeh K, Qiu W, Li K, Zhang J, Yu Q, Xu D, Liu W, Brand RE, Zhang X, Chen W, Liu G. Biosensors for early diagnosis of pancreatic cancer: a review. Transl Res 2019; 213:67-89. [PMID: 31442419 DOI: 10.1016/j.trsl.2019.08.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 08/06/2019] [Accepted: 08/06/2019] [Indexed: 12/21/2022]
Abstract
Pancreatic cancer is characterized by extremely high mortality and poor prognosis and is projected to be the leading cause of cancer deaths by 2030. Due to the lack of early symptoms and appropriate methods to detect pancreatic carcinoma at an early stage as well as its aggressive progression, the disease is often quite advanced by the time a definite diagnosis is established. The 5-year relative survival rate for all stages is approximately 8%. Therefore, detection of pancreatic cancer at an early surgically resectable stage is the key to decrease mortality and to improve survival. The traditional methods for diagnosing pancreatic cancer involve an imaging test, such as ultrasound or magnetic resonance imaging, paired with a biopsy of the mass in question. These methods are often expensive, time consuming, and require trained professionals to use the instruments and analyze the imaging. To overcome these issues, biosensors have been proposed as a promising tool for the early diagnosis of pancreatic cancer. The present review critically discusses the latest developments in biosensors for the early diagnosis of pancreatic cancer. Protein and microRNA biomarkers of pancreatic cancer and corresponding biosensors for pancreatic cancer diagnosis have been reviewed, and all these cases demonstrate that the emerging biosensors are becoming an increasingly relevant alternative to traditional techniques. In addition, we discuss the existing problems in biosensors and future challenges.
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Affiliation(s)
- Lisheng Qian
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China
| | - Qiaobin Li
- Department of Chemistry & Biochemistry, North Dakota State University, Fargo, North Dakota
| | - Kwaku Baryeh
- Department of Chemistry & Biochemistry, North Dakota State University, Fargo, North Dakota
| | - Wanwei Qiu
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China
| | - Kun Li
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China
| | - Jing Zhang
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China
| | - Qingcai Yu
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China
| | - Dongqin Xu
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China
| | - Wenju Liu
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China
| | - Randall E Brand
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh Medical Center, Hillman Cancer Center, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Xueji Zhang
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China; School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong, PR China.
| | - Wei Chen
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China; School of Food Science & Engineering, Hefei University of Technology, Hefei, Anhui, PR China.
| | - Guodong Liu
- Institute of Biomedical and Health, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, PR China; Department of Chemistry & Biochemistry, North Dakota State University, Fargo, North Dakota.
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5
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Hayasaki A, Murata Y, Usui M, Hibi T, Fujii T, Iizawa Y, Kato H, Tanemura A, Azumi Y, Kuriyama N, Kishiwada M, Mizuno S, Sakurai H, Uchida K, Isaji S. Clinical Significance of Plasma Apolipoprotein-AII Isoforms as a Marker of Pancreatic Exocrine Disorder for Patients with Pancreatic Adenocarcinoma Undergoing Chemoradiotherapy, Paying Attention to Pancreatic Morphological Changes. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5738614. [PMID: 31080824 PMCID: PMC6475573 DOI: 10.1155/2019/5738614] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/21/2019] [Accepted: 02/24/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND Circulating apolipoprotein-AII (apoAII-) ATQ/AT is a potential useful biomarker for early stage pancreatic ductal adenocarcinoma (PDAC), but its clinical significance in PDAC patients remains uncertain. The aim of the current study was to assess the usefulness of apoAII-ATQ/AT as a surrogate for the effect of chemoradiotherapy (CRT) and its association with pancreatic exocrine disorder, paying attention to morphological changes of the pancreas. METHODS In the 264 PDAC patients who were enrolled in our CRT protocol, the following parameters were measured at specified time points before and after CRT: serum levels of albumin, total cholesterol, and amylase as indices of pancreatic exocrine function, serum levels of CA19-9, and the pancreatic morphology including tumor size (TS), main pancreatic duct diameter (MPDD), and pancreatic parenchymal volume excluding tumor volume (PPV) by using computed tomography (CT) images. Plasma apoAII-ATQ/AT levels were simultaneously measured with enzyme-linked immunosorbent assay in 4 healthy volunteers and the 44 PDAC patients before and after CRT. Plasma apoAII-ATQ/AT levels after CRT were analyzed according to small/large-MPDD and small/large-PPV groups based on their median values after CRT. Plasma samples after CRT were measured after incubation with human pancreatic juice (PJ) to examine the relevance between apoAII isoforms and circulating pancreatic enzymes. RESULTS The serum levels of albumin, amylase, CA19-9, TS, MPDD, and PPV after CRT were significantly lower than those before CRT (median, before vs. after: 3.9 g/dl, 74 U/l, 180.2 U/ml, 58.1 mm, 4.0 mm, and 34.8 ml vs. 3.8, 59, 43.5, 55.6, 3.6, and 25.2). ApoAII-ATQ/AT levels (median, μg/ml) of PDAC patients before CRT were significantly lower than those in healthy volunteers: 32.9 vs. 61.2, and unexpectedly those after CRT significantly decreased: 14.7. The reduction rate of apoAII-ATQ/AT was not correlated with those of CA19-9 and TS, indicating that apoAII-ATQ/AT is not a tumor-specific marker. On the other hand, the patient group with large MPDD and small PV exhibited higher apoAII-ATQ levels than those with small MPDD and large PPV. The incubation of plasma samples after CRT with PJ did not alter apoAII-ATQ/AT and apoAII-AT levels but significantly decreased apoAII-ATQ levels, suggesting that circulating pancreatic enzymes markedly influenced apoAII-ATQ levels. CONCLUSIONS ApoAII-ATQ/AT levels are not useful for evaluation of clinical effect of CRT for PDAC, but apoAII isoforms are very useful to assess pancreatic exocrine disorder because pancreatic atrophy and insufficient secretion of circulating pancreatic enzymes are considered likely to influence apoAII-ATQ levels.
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Affiliation(s)
- Aoi Hayasaki
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Yasuhiro Murata
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Masanobu Usui
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Taemi Hibi
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Takehiro Fujii
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Yusuke Iizawa
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Hiroyuki Kato
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Akihiro Tanemura
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Yoshinori Azumi
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Naohisa Kuriyama
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Masashi Kishiwada
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Shugo Mizuno
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Hiroyuki Sakurai
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Katsunori Uchida
- Department of Oncologic Pathology, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Shuji Isaji
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
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Song Y, Wang Q, Wang D, Junqiang Li, Yang J, Li H, Wang X, Jin X, Jing R, Yang JH, Su H. Label-Free Quantitative Proteomics Unravels Carboxypeptidases as the Novel Biomarker in Pancreatic Ductal Adenocarcinoma. Transl Oncol 2018; 11:691-699. [PMID: 29631213 PMCID: PMC6154863 DOI: 10.1016/j.tranon.2018.03.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 03/13/2018] [Accepted: 03/13/2018] [Indexed: 01/26/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers, with a high mortality rate and poor prognosis. However, little is known concerning the molecular mechanism of PDAC at the proteomics level. Here we report a proteomics analysis of PDAC tumor and adjacent tissues by shotgun proteomics followed by label-free quantification, and in total, 3031 and 3306 proteins were identified in three pairs of PDAC tumor and adjacent tissues, respectively; 40 of them were differentially expressed for at least three-fold in PDAC tumor tissues. Ontological and interaction network analysis highlighted the dysregulation of a set of four proteins in the carboxypeptidase family: carboxypeptidase A1 (CPA1), A2 (CPA2), B1 (CPB1), and chymotrypsin C (CTRC). Western blotting confirmed the downregulation of the carboxypeptidase network in PDAC. Immunohistochemistry of tissue microarray from 90 PDAC patients demonstrated that CPB1 was downregulated 7.07-fold (P < .0001, n = 81) in tumor comparing with the peritumor tissue. Further 208 pancreatic tissues from PDAC tumor, peritumor, and pancreatis confirmed the downregulation of CPB1 in the PDAC patients. In summary, our results displayed that the expression of carboxypeptidase is significantly downregulated in PDAC tumor tissues and may be novel biomarker in the patient with PDAC.
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Affiliation(s)
- Yang Song
- Department of Oncology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Qing Wang
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Desheng Wang
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Junqiang Li
- Department of Oncology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Jing Yang
- Department of Oncology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Hong Li
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Xiang Wang
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Xuerong Jin
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Ruirui Jing
- Cancer Research Center, Shandong University School of Medicine, Jinan, 250012, China
| | - Jing-Hua Yang
- Cancer Research Center, Shandong University School of Medicine, Jinan, 250012, China; Departments of Surgery and Urology, VA Boston Healthcare System, Boston University School of Medicine, Boston, 510660, MA, USA.
| | - Haichuan Su
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, 710038, Shaanxi, China.
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7
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Kuriki Y, Kamiya M, Kubo H, Komatsu T, Ueno T, Tachibana R, Hayashi K, Hanaoka K, Yamashita S, Ishizawa T, Kokudo N, Urano Y. Establishment of Molecular Design Strategy To Obtain Activatable Fluorescent Probes for Carboxypeptidases. J Am Chem Soc 2018; 140:1767-1773. [DOI: 10.1021/jacs.7b11014] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Mako Kamiya
- PRESTO (Japan)
Science
and Technology Agency (JST), 4-1-8
Honcho Kawaguchi-shi, Saitama 332-0012, Japan
| | - Hidemasa Kubo
- Division
of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | | | | | | | | | | | | | - Takeaki Ishizawa
- Department
of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan
| | - Norihiro Kokudo
- Department
of Surgery, National Center for Global Health and Medicine, 1-21-1
Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Yasuteru Urano
- CREST (Japan)
Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
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8
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Plasma biomarker for detection of early stage pancreatic cancer and risk factors for pancreatic malignancy using antibodies for apolipoprotein-AII isoforms. Sci Rep 2015; 5:15921. [PMID: 26549697 PMCID: PMC4637825 DOI: 10.1038/srep15921] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 09/22/2015] [Indexed: 12/24/2022] Open
Abstract
We recently reported that circulating apolipoprotein AII (apoAII) isoforms apoAII-ATQ/AT (C-terminal truncations of the apoAII homo-dimer) decline significantly in pancreatic cancer and thus might serve as plasma biomarkers for the early detection of this disease. We report here the development of novel enzyme-linked immunosorbent assays (ELISAs) for measurement of apoAII-ATQ/AT and their clinical applicability for early detection of pancreatic cancer. Plasma and serum concentrations of apoAII-ATQ/AT were measured in three independent cohorts, which comprised healthy control subjects and patients with pancreatic cancer and gastroenterologic diseases (n = 1156). These cohorts included 151 cases of stage I/II pancreatic cancer. ApoAII-ATQ/AT not only distinguished the early stages of pancreatic cancer from healthy controls but also identified patients at high risk for pancreatic malignancy. AUC values of apoAII-ATQ/AT to detect early stage pancreatic cancer were higher than those of CA19–9 in all independent cohorts. ApoAII-ATQ/AT is a potential biomarker for screening patients for the early stage of pancreatic cancer and identifying patients at risk for pancreatic malignancy (161 words).
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Lankes U, Brennan SO, Walmsley TA, George PM. Relative quantification of albumin and fibrinogen modifications by liquid chromatography tandem mass spectrometry in the diagnosis and monitoring of acute pancreatitis. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 988:121-6. [PMID: 25770789 DOI: 10.1016/j.jchromb.2015.02.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 02/09/2015] [Accepted: 02/10/2015] [Indexed: 12/01/2022]
Abstract
The increasing availability of liquid chromatography tandem mass spectrometry (LC-MS/MS) in clinical laboratories provides the opportunity to replace or complement present underperforming immuno- and chemometric assays. Amylase and lipase show limited specificity and sensitivity for pancreatic inflammation and lack the capacity of monitoring the disease due to their short half-lives. Previous findings suggested that cleavage products of the pancreatic enzyme carboxypeptidase A could be a more suitable indicator for defining and classifying pancreatic inflammation. The plasma proteins albumin and β-fibrinogen were digested with trypsin and truncated forms (des-Leu-albumin, and des-Gln-β-fibrinogen) quantified against their non-truncated forms by LC-MS/MS. Four hundred fifty eight samples from 83 patients were used to evaluate the novel method and affirm its suitability for detecting acute pancreatitis. A robust, selective, precise and accurate LC-MS/MS method was set up to measure the proportion of truncated proteins. Reference ranges for the proportion of the truncated albumin and β-fibrinogen were from 2% to 9% and 3% to 25%, respectively. Acute pancreatitis patients had values above these ranges and were distinctly separated from reference control individuals. The longer circulating half-lives of albumin and fibrinogen compared to pancreatic enzymes themselves provide the potential to diagnose pancreatitis more specifically over a longer time period, to monitor the course of the disease, and to track recurrent complications. The wide range of the proportion and the differential half-life of both truncated proteins could also be used for assessing the severity of pancreatitis.
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Affiliation(s)
- Ulrich Lankes
- Steroid and Immunobiochemistry Unit, Canterbury Health Laboratories, 524 Hagley Avenue, Christchurch 8011, New Zealand.
| | - Stephen O Brennan
- Molecular Pathology Laboratory, University of Otago Christchurch, Christchurch 8011, New Zealand
| | - Trevor A Walmsley
- Clinical Biochemistry, Canterbury Health Laboratories, 524 Hagley Avenue, Christchurch 8011, New Zealand
| | - Peter M George
- Clinical Biochemistry, Canterbury Health Laboratories, 524 Hagley Avenue, Christchurch 8011, New Zealand
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10
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Zhang H, Ren Y, Xu H, Pang D, Duan C, Liu C. The expression of stem cell protein Piwil2 and piR-932 in breast cancer. Surg Oncol 2013; 22:217-23. [PMID: 23992744 DOI: 10.1016/j.suronc.2013.07.001] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 07/01/2013] [Accepted: 07/02/2013] [Indexed: 12/01/2022]
Abstract
BACKGROUND To investigate the expression status of PIWIL2 and piR-932 in breast cancer stem cells and the role they could play in tumor cell growth and metastasis through Latexin. METHODS CD44(+)/CD24(-) tumor cells (CSC) from clinical specimens were sorted using flow cytometry. PIWIL2 expression status was detected in CSC cells by microarray analysis and 1086 breast cancer specimens by Western blot and immunohistochemistry staining. piR-932 expression was also detected in CSC cells by piRNA microarray assay. The relationship between the PIWIL2 protein and clinico-pathological parameters and prognosis was subsequently determined. RESULTS CSC cells are more likely to generate new tumors in mice and cell microspheres that are deficient in NOD/SCID compared to the control group. PIWIL2 protein was expressed higher in CSC cells compared to the control cells. In total, 334 (30.76%) of the 1086 breast cases showed high PIWIL2 expression. PIWIL2 was observed to be related to age, tumor size, histological type, tumor stage, and lymph node metastasis (all P < 0.05). Furthermore, we have found that one of the Piwi-interacting RNAs (piRNAs) called piR-932 expressed significantly higher in the breast cancer cells that were induced to EMT, and it could form immune complexes through immunoprecipitation with PIWIL2; in PIWIL2+ breast cancer stem cells, Latexin expression significantly reduced because of its promoter region CpG island methylation. CONCLUSIONS These results suggest that the combination of piR-932 and PIWIL2 may be a positive regulator in the process of breast cancer stem cells through promoting the methylation of Latexin, and they both could be the potential targets for blocking the metastasis of breast cancer.
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Affiliation(s)
- Hao Zhang
- Department of Breast Surgery, Second Hospital of Dalian Medical University, Dalian 116023, China.
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11
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Ren C, Chen H, Han C, Jin G, Wang D, Wang D, Tang D. Detection and molecular analysis of circulating tumor cells for early diagnosis of pancreatic cancer. Med Hypotheses 2013; 80:833-6. [PMID: 23587480 DOI: 10.1016/j.mehy.2013.03.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 03/07/2013] [Accepted: 03/17/2013] [Indexed: 02/07/2023]
Abstract
Circulating tumor cells (CTCs) have the potential to provide a surrogate for "real-time biopsy" of tumor biological activity. Enumeration and molecular characterization of CTCs in pancreatic cancer could play an important role in diagnosis, predicting the risk for tumor recurrence, and providing novel target therapy biomarkers. CTCs can disseminate into peripheral blood in the preinvasive and early stages of pancreatic cancer. In view of these facts, we propose that identification and molecular analysis of the malignant characteristics of CTCs may serve as a "liquid biopsy" in pancreatic cancer for early diagnosis.
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Affiliation(s)
- Chuanli Ren
- Medical Laboratory, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou 225001, China
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12
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Honda K, Okusaka T, Felix K, Nakamori S, Sata N, Nagai H, Ioka T, Tsuchida A, Shimahara T, Shimahara M, Yasunami Y, Kuwabara H, Sakuma T, Otsuka Y, Ota N, Shitashige M, Kosuge T, Büchler MW, Yamada T. Altered plasma apolipoprotein modifications in patients with pancreatic cancer: protein characterization and multi-institutional validation. PLoS One 2012; 7:e46908. [PMID: 23056525 PMCID: PMC3466211 DOI: 10.1371/journal.pone.0046908] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 09/06/2012] [Indexed: 02/03/2023] Open
Abstract
Background Among the more common human malignancies, invasive ductal carcinoma of the pancreas has the worst prognosis. The poor outcome seems to be attributable to difficulty in early detection. Methods We compared the plasma protein profiles of 112 pancreatic cancer patients with those of 103 sex- and age-matched healthy controls (Cohort 1) using a newly developed matrix-assisted laser desorption/ionization (oMALDI) QqTOF (quadrupole time-of-flight) mass spectrometry (MS) system. Results We found that hemi-truncated apolipoprotein AII dimer (ApoAII-2; 17252 m/z), unglycosylated apolipoprotein CIII (ApoCIII-0; 8766 m/z), and their summed value were significantly decreased in the pancreatic cancer patients [P = 1.36×10−21, P = 4.35×10−14, and P = 1.83×10−24 (Mann-Whitney U-test); area-under-curve values of 0.877, 0.798, and 0.903, respectively]. The significance was further validated in a total of 1099 plasma/serum samples, consisting of 2 retrospective cohorts [Cohort 2 (n = 103) and Cohort 3 (n = 163)] and a prospective cohort [Cohort 4 (n = 833)] collected from 8 medical institutions in Japan and Germany. Conclusions We have constructed a robust quantitative MS profiling system and used it to validate alterations of modified apolipoproteins in multiple cohorts of patients with pancreatic cancer.
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Affiliation(s)
- Kazufumi Honda
- Division of Chemotherapy and Clinical Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Takuji Okusaka
- Hepatobiliary and Pancreatic Oncology Division, National Cancer Center Hospital, Tokyo, Japan
| | - Klaus Felix
- Department of Surgery, University of Heidelberg, Heidelberg, Germany
| | - Shoji Nakamori
- Department of Surgery, Osaka National Hospital, National Hospital Organization, Osaka, Japan
| | - Naohiro Sata
- Department of Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Hideo Nagai
- Department of Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Tatsuya Ioka
- Department of Hepatobiliary and Pancreatic Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - Akihiko Tsuchida
- Third Department of Surgery, Tokyo Medical University, Tokyo, Japan
| | | | | | - Yohichi Yasunami
- Department of Regenerative Medicine and Transplantation, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | | | | | - Yoshihiko Otsuka
- Pancreatic Cancer Diagnosis Project, Molecuence Corporation, Yokohama, Japan
| | - Norihito Ota
- Pancreatic Cancer Diagnosis Project, Molecuence Corporation, Yokohama, Japan
| | - Miki Shitashige
- Division of Chemotherapy and Clinical Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Tomoo Kosuge
- Hepatobiliary and Pancreatic Surgery Division, National Cancer Center Hospital, Tokyo, Japan
| | - Markus W. Büchler
- Department of Surgery, University of Heidelberg, Heidelberg, Germany
| | - Tesshi Yamada
- Division of Chemotherapy and Clinical Research, National Cancer Center Research Institute, Tokyo, Japan
- * E-mail:
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Prassas I, Chrystoja CC, Makawita S, Diamandis EP. Bioinformatic identification of proteins with tissue-specific expression for biomarker discovery. BMC Med 2012; 10:39. [PMID: 22515324 PMCID: PMC3378448 DOI: 10.1186/1741-7015-10-39] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Accepted: 04/19/2012] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND There is an important need for the identification of novel serological biomarkers for the early detection of cancer. Current biomarkers suffer from a lack of tissue specificity, rendering them vulnerable to non-disease-specific increases. The present study details a strategy to rapidly identify tissue-specific proteins using bioinformatics. METHODS Previous studies have focused on either gene or protein expression databases for the identification of candidates. We developed a strategy that mines six publicly available gene and protein databases for tissue-specific proteins, selects proteins likely to enter the circulation, and integrates proteomic datasets enriched for the cancer secretome to prioritize candidates for further verification and validation studies. RESULTS Using colon, lung, pancreatic and prostate cancer as case examples, we identified 48 candidate tissue-specific biomarkers, of which 14 have been previously studied as biomarkers of cancer or benign disease. Twenty-six candidate biomarkers for these four cancer types are proposed. CONCLUSIONS We present a novel strategy using bioinformatics to identify tissue-specific proteins that are potential cancer serum biomarkers. Investigation of the 26 candidates in disease states of the organs is warranted.
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Affiliation(s)
- Ioannis Prassas
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
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14
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Liu J, Gao J, Du Y, Li Z, Ren Y, Gu J, Wang X, Gong Y, Wang W, Kong X. Combination of plasma microRNAs with serum CA19-9 for early detection of pancreatic cancer. Int J Cancer 2011; 131:683-91. [PMID: 21913185 DOI: 10.1002/ijc.26422] [Citation(s) in RCA: 210] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 08/22/2011] [Indexed: 12/11/2022]
Abstract
This study was performed to identify plasma microRNAs (miRNAs) as diagnostic biomarkers for pancreatic cancer (PCa) and to assess their supplementary role with serum CA19-9 in early identification of tumors. Plasma RNAs were extracted from 140 PCa patients, 111 chronic pancreatitis (CP) patients and 68 normal controls, and the relative abundances of seven miRNAs (miR-16, 21, 155, 181a, 181b, 196a and 210) were measured using real-time PCR. Their diagnostic utility for PCa and correlation with clinical characteristics were analyzed. All seven miRNAs were significantly aberrantly upregulated in the PCa group compared with both the CP and normal groups, between which only four miRNAs (miR-155, 181a, 181b and 196a) were significantly different. Logistic modeling proved that only miR-16 and miR-196a possessed an independent role in discriminating PCa from normal and CP. Furthermore, after including serum CA19-9 in the logistic model, the combination of miR-16, miR-196a and CA19-9 was more effective for discriminating PCa from non-PCa (normal+CP) (AUC-ROC, 0.979; sensitivity, 92.0%; specificity, 95.6%), and for discriminating PCa from CP (AUC-ROC, 0.956; sensitivity, 88.4%; specificity, 96.3%) compared with the miRNA panel (miR-16+miR-196a) or CA19-9 alone. Most significantly, the combination was effective at identification of tumors in Stage 1 (85.2%). In conclusion, plasma miRNAs were effective for distinguishing PCa from non-PCa (normal+CP). The combination of miR-16, miR-196a and CA19-9 was more effective for PCa diagnosis, especially in early tumor screening.
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Affiliation(s)
- Jianqiang Liu
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
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15
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Makawita S, Smith C, Batruch I, Zheng Y, Rückert F, Grützmann R, Pilarsky C, Gallinger S, Diamandis EP. Integrated proteomic profiling of cell line conditioned media and pancreatic juice for the identification of pancreatic cancer biomarkers. Mol Cell Proteomics 2011; 10:M111.008599. [PMID: 21653254 PMCID: PMC3205865 DOI: 10.1074/mcp.m111.008599] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2011] [Revised: 05/19/2011] [Indexed: 12/13/2022] Open
Abstract
Pancreatic cancer is one of the leading causes of cancer-related deaths, for which serological biomarkers are urgently needed. Most discovery-phase studies focus on the use of one biological source for analysis. The present study details the combined mining of pancreatic cancer-related cell line conditioned media and pancreatic juice for identification of putative diagnostic leads. Using strong cation exchange chromatography, followed by LC-MS/MS on an LTQ-Orbitrap mass spectrometer, we extensively characterized the proteomes of conditioned media from six pancreatic cancer cell lines (BxPc3, MIA-PaCa2, PANC1, CAPAN1, CFPAC1, and SU.86.86), the normal human pancreatic ductal epithelial cell line HPDE, and two pools of six pancreatic juice samples from ductal adenocarcinoma patients. All samples were analyzed in triplicate. Between 1261 and 2171 proteins were identified with two or more peptides in each of the cell lines, and an average of 521 proteins were identified in the pancreatic juice pools. In total, 3479 nonredundant proteins were identified with high confidence, of which ∼ 40% were extracellular or cell membrane-bound based on Genome Ontology classifications. Three strategies were employed for identification of candidate biomarkers: (1) examination of differential protein expression between the cancer and normal cell lines using label-free protein quantification, (2) integrative analysis, focusing on the overlap of proteins among the multiple biological fluids, and (3) tissue specificity analysis through mining of publically available databases. Preliminary verification of anterior gradient homolog 2, syncollin, olfactomedin-4, polymeric immunoglobulin receptor, and collagen alpha-1(VI) chain in plasma samples from pancreatic cancer patients and healthy controls using ELISA, showed a significant increase (p < 0.01) of these proteins in plasma from pancreatic cancer patients. The combination of these five proteins showed an improved area under the receiver operating characteristic curve to CA19.9 alone. Further validation of these proteins is warranted, as is the investigation of the remaining group of candidates.
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Affiliation(s)
- Shalini Makawita
- From the ‡Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
- §Department of Clinical Biochemistry, University Health Network, Toronto, ON, Canada
| | - Chris Smith
- §Department of Clinical Biochemistry, University Health Network, Toronto, ON, Canada
| | - Ihor Batruch
- ¶Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON, Canada
| | - Yingye Zheng
- ‖The Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Felix Rückert
- **Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University of Dresden, Germany
| | - Robert Grützmann
- **Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University of Dresden, Germany
| | - Christian Pilarsky
- **Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University of Dresden, Germany
| | - Steven Gallinger
- ‡‡Zane Cohen Familial Gastrointestinal Cancer Registry and Department of Surgery, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Eleftherios P. Diamandis
- From the ‡Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
- §Department of Clinical Biochemistry, University Health Network, Toronto, ON, Canada
- ¶Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON, Canada
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Fernández D, Boix E, Pallarès I, Avilés FX, Vendrell J. Structural and Functional Analysis of the Complex between Citrate and the Zinc Peptidase Carboxypeptidase A. Enzyme Res 2011; 2011:128676. [PMID: 21804935 PMCID: PMC3144702 DOI: 10.4061/2011/128676] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Accepted: 05/30/2011] [Indexed: 11/20/2022] Open
Abstract
A high-resolution carboxypeptidase-Zn(2+)-citrate complex was studied by X-ray diffraction and enzyme kinetics for the first time. The citrate molecule acts as a competitive inhibitor of this benchmark zinc-dependent peptidase, chelating the catalytic zinc ion in the active site of the enzyme and inducing a conformational change such that carboxypeptidase adopts the conformation expected to occur by substrate binding. Citrate adopts an extended conformation with half of the molecule facing the zinc ion, while the other half is docked in the S1' hydrophobic specificity pocket of the enzyme, in contrast with the binding mode expected for a substrate like phenylalanine or a peptidomimetic inhibitor like benzylsuccinic acid. Combined structural and enzymatic analysis describes the characteristics of the binding of this ligand that, acting against physiologically relevant zinc-dependent proteases, may serve as a general model in the design of new drug-protecting molecules for the oral delivery of drugs of peptide origin.
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Affiliation(s)
- Daniel Fernández
- Departament de Bioquímica i Biologia Molecular, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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Nerve injury evoked loss of latexin expression in spinal cord neurons contributes to the development of neuropathic pain. PLoS One 2011; 6:e19270. [PMID: 21572518 PMCID: PMC3084808 DOI: 10.1371/journal.pone.0019270] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Accepted: 03/25/2011] [Indexed: 11/24/2022] Open
Abstract
Nerve injury leads to sensitization mechanisms in the peripheral and central
nervous system which involve transcriptional and post-transcriptional
modifications in sensory nerves. To assess protein regulations in the spinal
cord after injury of the sciatic nerve in the Spared Nerve Injury model (SNI) we
performed a proteomic analysis using 2D-difference gel electrophoresis (DIGE)
technology. Among approximately 2300 protein spots separated on each gel we
detected 55 significantly regulated proteins after SNI whereof 41 were
successfully identified by MALDI-TOF MS. Out of the proteins which were
regulated in the DIGE analyses after SNI we focused on the carboxypeptidase A
inhibitor latexin because protease dysfunctions contribute to the development of
neuropathic pain. Latexin protein expression was reduced after SNI which could
be confirmed by Western Blot analysis, quantitative RT-PCR and in-situ
hybridisation. The decrease of latexin was associated with an increase of the
activity of carboxypeptidase A indicating that the balance between latexin and
carboxypeptidase A was impaired in the spinal cord after peripheral nerve injury
due to a loss of latexin expression in spinal cord neurons. This may contribute
to the development of cold allodynia because normalization of neuronal latexin
expression in the spinal cord by AAV-mediated latexin transduction or
administration of a small molecule carboxypeptidase A inhibitor significantly
reduced acetone-evoked nociceptive behavior after SNI. Our results show the
usefulness of proteomics as a screening tool to identify novel mechanisms of
nerve injury evoked hypernociception and suggest that carboxypeptidase A
inhibition might be useful to reduce cold allodynia.
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18
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Kemik O, Kemik AS, Sumer A, Beğenik H, Dülger AC, Purisa S, Tuzun S. Serum procarboxypeptidase A and carboxypeptidase A levels in pancreatic disease. Hum Exp Toxicol 2011; 31:447-51. [PMID: 21502183 DOI: 10.1177/0960327111405864] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVES To determine the serum levels of procarboxypeptidase A (pro-CPA) and carboxypeptidase A (CPA) in patients with acute and chronic pancreatitis and pancreatic cancer. MATERIALS AND METHODS Serum samples obtained from 96 patients with acute pancreatitis, 101 patients with chronic pancreatitis, 98 patients with pancreatic cancer and 96 control groups were assayed for biochemical parameters and serum pro-CPA and CPA. RESULTS Serum pro-CPA and CPA levels were significantly higher in acute and in chronic pancreatic cancer patients compared to control group (p < 0.001). Pancreatic cancer patients had significantly higher serum pro-CPA and CPA levels when compared with acute and chronic pancreatitis cases (p < 0.001). CONCLUSION These data prove for increased pro-CPA and CPA levels as a biomarker for the diagnosis of pancreatitis and pancreatic cancer.
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Affiliation(s)
- Ozgur Kemik
- Department of General Surgery, Medical Faculty, University of Yüzüncü Yıl University, Van, Turkey.
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19
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Li Y, Basang Z, Ding H, Lu Z, Ning T, Wei H, Cai H, Ke Y. Latexin expression is downregulated in human gastric carcinomas and exhibits tumor suppressor potential. BMC Cancer 2011; 11:121. [PMID: 21466706 PMCID: PMC3080345 DOI: 10.1186/1471-2407-11-121] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Accepted: 04/06/2011] [Indexed: 01/10/2023] Open
Abstract
Background Latexin, also known as endogenous carboxypeptidase inhibitor (CPI), has been found to inhibit mouse stem cell populations and lymphoma cell proliferation, demonstrating its potential role as a tumor suppressor. Our previous study also suggested a correlation between latexin expression and malignant transformation of immortalized human gastric epithelial cells. Here, we examined latexin expression in human gastric carcinomas and investigated the effect of differential latexin expression on proliferation of gastric cancer cells in vitro and in vivo. Methods Monoclonal antibody against human latexin was prepared and immunohistochemical analysis was performed to detect latexin expression in 41 paired gastric carcinomas and adjacent normal control tissues. Human gastric cancer cells MGC803 (latexin negative) stably transfected with LXN gene and BGC823 cells (latexin positive) stably transfected with antisense LXN gene were established for anchorage-dependent colony formation assay and tumorigenesis assay in nude mice. Differentially expressed genes in response to exogeneous latexin expression were screened using microarray analysis and identified by RT-PCR. Bisulfite sequencing was performed to analyze the correlation of the methylation status of LXN promoter with latexin expression in cell lines. Results Immunohistochemical analysis showed significantly reduced latexin expression in gastric carcinomas (6/41, 14.6%) compared to control tissues (31/41, 75.6%) (P < 0.05). Overexpression of LXN gene in MGC803 cells inhibited colony formation and tumor growth in nude mice. Conversely, BGC823 cells transfected with antisense LXN gene exhibited enhanced tumor growth and colony formation. Additionally, several tumor related genes, including Maspin, WFDC1, SLPI, S100P, and PDGFRB, were shown to be differentially expressed in MGC803 cells in response to latexin expression. Differential expression of Maspin and S100P was also identified in BGC823 cells while latexin expression was downregulated. Further bisulfite sequencing of the LXN gene promoter indicated CpG hypermethylation was correlated with silencing of latexin expression in human cells. Conclusions Latexin expression was reduced in human gastric cancers compared with their normal control tissues. The cellular and molecular evidences demonstrated the inhibitory effect of latexin in human gastric cancer cell growth and tumorigenicity. These results strongly suggest the possible involvement of latexin expression in tumor suppression.
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Affiliation(s)
- Yong Li
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Genetics, Peking University School of Oncology, Beijing Cancer Hospital & Institute, Hai Dian District, Beijing 100142, China
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Kim TH, Kim YJ, Cho JW, Shim J. A novel zinc-carboxypeptidase SURO-1 regulates cuticle formation and body morphogenesis in Caenorhabditis elegans. FEBS Lett 2010; 585:121-7. [PMID: 21094156 DOI: 10.1016/j.febslet.2010.11.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 11/10/2010] [Accepted: 11/12/2010] [Indexed: 11/27/2022]
Abstract
Cuticle formation and molting are critical for the development of Caenorhabditis elegans. To understand cuticle formation more clearly, we screened for suppressors in transgenic worms that expressed dominant ROL-6 collagen proteins. The suro-1 mutant, which is mild dumpy, exhibited a different ROL-6::GFP localization pattern compared to other Dpy mutants. We identified mutations in three suro-1 mutants, and found that suro-1 (ORF R11A5.7) encodes a putative zinc-carboxypeptidase homologue. The expression of this enzyme in the hypodermis and the genetic interactions between this enzyme and other collagen-modifying enzyme mutants suggest a regulatory role in collagen processing and cuticle organization for this novel carboxypeptidase. These findings aid our understanding of cuticle formation during worm development.
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Affiliation(s)
- Tai Hoon Kim
- Cancer Experimental Resources Branch, National Cancer Center, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea
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Abstract
BACKGROUND There is an urgent need for biomarkers to detect pancreatic cancer in the early, potentially curable, stages. METHODS We have used SELDI profiling to analyze serum from 75 patients with pancreatic cancer and 61 patients with nonmalignant pancreaticobiliary diseases. RESULTS A peak in the SELDI spectra corresponding to a 53 residue fragment of the α-chain of fibrinogen is remarkably elevated in approximately 50% of the cancer patients. In addition, fibrinogen degradation products were measured using the DR-70 assay. The areas under the receiver operating characteristic curves for the SELDI-detected fibrinogen fragment, DR-70 and CA19-9 were 0.65, 0.75 and 0.86, respectively. Class prediction models using combinations of these markers did not increase the area under the receiver operating characteristic curve compared with CA19-9. The novel fibrinogen fragment was not elevated to the same extent in other malignancies but was elevated in some patients with benign pancreatic disease. CONCLUSION Both the SELDI-detected fragment of fibrinogen and DR-70 are significantly elevated in the serum of pancreatic cancer patients. However, they do not seem to improve pancreatic cancer detection over CA19-9 alone.
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Fernández D, Pallarès I, Vendrell J, Avilés FX. Progress in metallocarboxypeptidases and their small molecular weight inhibitors. Biochimie 2010; 92:1484-500. [PMID: 20466032 DOI: 10.1016/j.biochi.2010.05.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Accepted: 05/04/2010] [Indexed: 01/11/2023]
Abstract
In what corresponds to a life span, metallocarboxypeptidases (MCPs) have jumped from being mere contaminants in animal pancreas powders (in depression year 1929) to be key players in cellular and molecular processes (in yet-another-depression years 2009-2010). MCPs are unique zinc-dependent enzymes that catalyze the breakdown of the amide bond at the C-terminus of peptide and protein substrates and participate in the recovery of dietary amino acids, tissue organogenesis, neurohormone and cytokine maturation and other important physiological processes. More than 26 genes code for MCPs in the human genome, many of them still waiting to be fully understood in terms of physiological function. A variety of MCPs have been linked to diseases in man: acute pancreatitis and pancreas cancer, type 2 diabetes, Alzheimer's Disease, various types of cancer, and fibrinolysis and inflammation. Many of these discoveries have been made possible thanks to recent advances, as exemplified by plasma carboxypeptidases N and B, known for fifty and twenty years, respectively, which have had their structures released only very recently. Plasma carboxypeptidase B is a biological target for therapy because of its involvement in the coagulation/fibrinolysis processes. Besides, the widespread use of carboxypeptidase A as a benchmark metalloprotease since the early days of Biochemistry has allowed the identification and design of an increasingly vast repertory of small molecular weight inhibitors. With these two examples we wish to emphasize that MCPs have become part of the drug discovery portfolio of pharmaceutical companies and academic research laboratories. This paper will review key developments in the discovery and design of MCP small molecular weight inhibitors, with an emphasis on the discovery of chemically diverse entities. Although encouraging advances have been achieved in the last few years, the specificity and oral bioavailability of the new chemotherapeutic agents seem to pose a challenge to medicinal chemists.
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Affiliation(s)
- Daniel Fernández
- Departament de Bioquímica i Biologia Molecular, Facultat de Biociències and Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
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Fernández D, Testero S, Vendrell J, Avilés FX, Mobashery S. The X-ray structure of carboxypeptidase A inhibited by a thiirane mechanism-based inhibitor. Chem Biol Drug Des 2009; 75:29-34. [PMID: 19895506 DOI: 10.1111/j.1747-0285.2009.00907.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The three-dimensional X-ray crystal structure of carboxypeptidase A, a zinc-dependent hydrolase, covalently modified by a mechanism-based thiirane inactivator, 2-benzyl-3,4-epithiobutanoic acid, has been solved to 1.38 A resolution. The interaction of the thiirane moiety of the inhibitor with the active site zinc ion promotes its covalent modification of Glu-270 with the attendant opening of the thiirane ring. The crystal structure determination at high resolution allowed for the clear visualization of the covalent ester bond to the glutamate side chain. The newly generated thiol from the inhibitor binds to the catalytic zinc ion in a monodentate manner, inducing a change in the zinc ion geometry and coordination, while its benzyl group fits into the S1' specificity pocket of the enzyme. The inhibitor molecule is distorted at the position of the carbon atom that is involved in the ester bond linkage on one side and the zinc coordination on the other. This particular type of thiirane-based metalloprotease inhibitor is for the first time analyzed in complex to the target protease at high resolution and may be used as a general model for zinc-dependent proteases.
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Affiliation(s)
- Daniel Fernández
- Departament de Bioquímica i Biologia Molecular, Facultat de Biociències, and Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
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Fernández D, Torres E, Avilés FX, Ortuño RM, Vendrell J. Cyclobutane-containing peptides: Evaluation as novel metallocarboxypeptidase inhibitors and modelling of their mode of action. Bioorg Med Chem 2009; 17:3824-8. [DOI: 10.1016/j.bmc.2009.04.035] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2009] [Revised: 04/14/2009] [Accepted: 04/17/2009] [Indexed: 10/20/2022]
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Fernández D, Avilés FX, Vendrell J. Aromatic Organic Compounds as Scaffolds for Metallocarboxypeptidase Inhibitor Design. Chem Biol Drug Des 2009; 73:75-82. [DOI: 10.1111/j.1747-0285.2008.00752.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Fredriksson S, Horecka J, Terje Brustugun O, Schlingemann J, Koong AC, Tibshirani R, Davis RW. Multiplexed Proximity Ligation Assays to Profile Putative Plasma Biomarkers Relevant to Pancreatic and Ovarian Cancer. Clin Chem 2008; 54:582-9. [DOI: 10.1373/clinchem.2007.093195] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Background: Sensitive methods are needed for biomarker discovery and validation. We tested one promising technology, multiplex proximity ligation assay (PLA), in a pilot study profiling plasma biomarkers in pancreatic and ovarian cancer.
Methods: We used 4 panels of 6- and 7-plex PLAs to detect biomarkers, with each assay consuming 1 μL plasma and using either matched monoclonal antibody pairs or single batches of polyclonal antibody. Protein analytes were converted to unique DNA amplicons by proximity ligation and subsequently detected by quantitative PCR. We profiled 18 pancreatic cancer cases and 19 controls and 19 ovarian cancer cases and 20 controls for the following proteins: a disintegrin and metalloprotease 8, CA-125, CA 19-9, carboxypeptidase A1, carcinoembryonic antigen, connective tissue growth factor, epidermal growth factor receptor, epithelial cell adhesion molecule, Her2, galectin-1, insulin-like growth factor 2, interleukin-1α, interleukin-7, mesothelin, macrophage migration inhibitory factor, osteopontin, secretory leukocyte peptidase inhibitor, tumor necrosis factor α, vascular endothelial growth factor, and chitinase 3–like 1. Probes for CA-125 were present in 3 of the multiplex panels. We measured plasma concentrations of the CA-125–mesothelin complex by use of a triple-specific PLA with 2 ligation events among 3 probes.
Results: The assays displayed consistent measurements of CA-125 independent of which other markers were simultaneously detected and showed good correlation with Luminex data. In comparison to literature reports, we achieved expected results for other putative markers.
Conclusion:
Multiplex PLA using either matched monoclonal antibodies or single batches of polyclonal antibody should prove useful for identifying and validating sets of putative disease biomarkers and finding multimarker panels.
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Affiliation(s)
- Simon Fredriksson
- Stanford Genome Technology Center, Bio-X, Stanford University, Stanford, CA
| | - Joe Horecka
- Stanford Genome Technology Center, Bio-X, Stanford University, Stanford, CA
| | | | - Joerg Schlingemann
- Rudbeck Laboratory, Department of Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Albert C Koong
- Department of Radiation Oncology, Stanford University, Stanford, CA
| | - Rob Tibshirani
- Departments of Health Research and Policy and Statistics, Stanford University, Stanford, CA
| | - Ronald W Davis
- Stanford Genome Technology Center, Bio-X, Stanford University, Stanford, CA
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Faca V, Hanash S. In-depth quantitative proteomics for pancreatic cancer biomarker discovery. ACTA ACUST UNITED AC 2007; 1:81-9. [DOI: 10.1517/17530059.1.1.81] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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