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Guo L, Wang J, Li N, Cui J, Su Y. Peptides for diagnosis and treatment of ovarian cancer. Front Oncol 2023; 13:1135523. [PMID: 37213272 PMCID: PMC10196167 DOI: 10.3389/fonc.2023.1135523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 04/24/2023] [Indexed: 05/23/2023] Open
Abstract
Ovarian cancer is the most deadly gynecologic malignancy, and its incidence is gradually increasing. Despite improvements after treatment, the results are unsatisfactory and survival rates are relatively low. Therefore, early diagnosis and effective treatment remain two major challenges. Peptides have received significant attention in the search for new diagnostic and therapeutic approaches. Radiolabeled peptides specifically bind to cancer cell surface receptors for diagnostic purposes, while differential peptides in bodily fluids can also be used as new diagnostic markers. In terms of treatment, peptides can exert cytotoxic effects directly or act as ligands for targeted drug delivery. Peptide-based vaccines are an effective approach for tumor immunotherapy and have achieved clinical benefit. In addition, several advantages of peptides, such as specific targeting, low immunogenicity, ease of synthesis and high biosafety, make peptides attractive alternative tools for the diagnosis and treatment of cancer, particularly ovarian cancer. In this review, we focus on the recent research progress regarding peptides in the diagnosis and treatment of ovarian cancer, and their potential applications in the clinical setting.
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Klotz DM, Link T, Goeckenjan M, Wimberger P, Kuhlmann JD. The levels of soluble cMET ectodomain in the blood of patients with ovarian cancer are an independent prognostic biomarker. Mol Oncol 2021; 15:2491-2503. [PMID: 33690968 PMCID: PMC8410524 DOI: 10.1002/1878-0261.12939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/16/2021] [Accepted: 03/08/2021] [Indexed: 12/21/2022] Open
Abstract
The tyrosine kinase mesenchymal–epithelial transition (cMET) is typically overexpressed in up to 75% of patients with ovarian cancer, and cMET overexpression has been associated with poor prognosis. The proteolytic release of the soluble cMET (sMET) ectodomain by metalloproteases, a process called ectodomain shedding, reflects the malignant potential of tumour cells. sMET can be detected in the human circulation and has been proposed as biomarker in several cancers. However, the clinical relevance of sMET in ovarian cancer as blood‐based biomarker is unknown and was therefore investigated in this study. sMET levels were determined by enzyme‐linked immunosorbent assay in a set of 432 serum samples from 85 healthy controls and 86 patients with ovarian cancer (87% FIGO III/IV). Samples were collected at primary diagnosis, at four longitudinal follow‐up time points during the course of treatment and at disease recurrence. Although there was no significant difference between median sMET levels at primary diagnosis of ovarian cancer vs. healthy controls, increased sMET levels at primary diagnosis were an independent predictor of shorter PFS (HR = 0.354, 95% CI: 0.130–0.968, P = 0.043) and shorter OS (HR = 0.217, 95% CI: 0.064–0.734, P = 0.014). In the follow‐up samples, sMET levels were prognostically most informative after the first three cycles of chemotherapy, with high sMET levels being an independent predictor of shorter PFS (HR = 0.245, 95% CI: 0.100–0.602, P = 0.002). This is the first study to suggest that sMET levels in the blood can be used as an independent prognostic biomarker for ovarian cancer. Patients at high risk of recurrence and with poor prognosis, as identified based on sMET levels in the blood, could potentially benefit from cMET‐directed therapies or other targeted regimes, such as PARP inhibitors or immunotherapy.
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Affiliation(s)
- Daniel Martin Klotz
- Department of Gynecology and Obstetrics, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,National Center for Tumour Diseases (NCT), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Germany.,German Cancer Consortium (DKTK), Dresden, Germany
| | - Theresa Link
- Department of Gynecology and Obstetrics, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,National Center for Tumour Diseases (NCT), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Germany.,German Cancer Consortium (DKTK), Dresden, Germany
| | - Maren Goeckenjan
- Department of Gynecology and Obstetrics, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,National Center for Tumour Diseases (NCT), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Germany.,German Cancer Consortium (DKTK), Dresden, Germany
| | - Pauline Wimberger
- Department of Gynecology and Obstetrics, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,National Center for Tumour Diseases (NCT), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Germany.,German Cancer Consortium (DKTK), Dresden, Germany
| | - Jan Dominik Kuhlmann
- Department of Gynecology and Obstetrics, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,National Center for Tumour Diseases (NCT), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany.,Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Germany.,German Cancer Consortium (DKTK), Dresden, Germany
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Klotz DM, Wimberger P. Overcoming PARP inhibitor resistance in ovarian cancer: what are the most promising strategies? Arch Gynecol Obstet 2020; 302:1087-1102. [PMID: 32833070 PMCID: PMC7524817 DOI: 10.1007/s00404-020-05677-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/02/2020] [Indexed: 01/16/2023]
Abstract
Purpose Ovarian cancer is the most lethal gynaecological malignancy. Despite the introduction of bevacizumab, standard chemotherapy has remained largely unchanged and the vast majority of patients will relapse within the first two years of diagnosis. However, results from recent clinical trials demonstrating clinical benefits of PARP inhibitor treatment are rapidly changing therapeutic options for many patients with ovarian cancer. Methods Given the introduction of new therapeutic options in the treatment of ovarian cancer, we critically review key clinical trials, areas of scientific research and its clinical relevance. Results Most notably, patients with BRCA1/2 mutant ovarian cancer benefit from maintenance treatment with PARP inhibitors after (complete or partial) response to platinum-based chemotherapy. Here, we discuss the mechanism of PARP inhibition, multiple drug resistance mechanisms, including BRCA reverse mutations, altered PARP expression, changes in DNA repair pathways, kinase activation and additional drug targets that may augment PARP inhibition. Conclusion Although the use of PARP inhibitors is a huge step forward, it is apparent that patients, both with and without BRCA-mutant ovarian cancer, will eventually become resistant to PARP inhibitors. Therefore, novel combination therapies may enhance PARP inhibitor efficacy and overcome resistance mechanisms.
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Affiliation(s)
- Daniel Martin Klotz
- Dresden and German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany. .,Department of Gynecology and Obstetrics, Medical Faculty, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany. .,National Center for Tumor Diseases (NCT), Partner Site Dresden, Dresden, Germany.
| | - Pauline Wimberger
- Dresden and German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany.,Department of Gynecology and Obstetrics, Medical Faculty, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,National Center for Tumor Diseases (NCT), Partner Site Dresden, Dresden, Germany
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Baiocchi GL, Gheza F, Molfino S, Arru L, Vaira M, Giacopuzzi S. Indocyanine green fluorescence-guided intraoperative detection of peritoneal carcinomatosis: systematic review. BMC Surg 2020; 20:158. [PMID: 32680492 PMCID: PMC7367360 DOI: 10.1186/s12893-020-00821-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/08/2020] [Indexed: 02/08/2023] Open
Abstract
Background To review the available clinical data about the value of Indocyanine Green (ICG) fluorescence imaging for intraoperative detection of peritoneal carcinomatosis. Methods We conducted a systematic review, according to the PRISMA guidelines, for clinical series investigating the possible role of ICG fluorescence imaging in detecting peritoneal carcinomatosis during surgical treatment of abdominal malignancies. With the aim to analyze actual application in the daily clinical practice, papers including trials with fluorophores other than ICG, in vitro and animals series were excluded. Data on patients and cancer features, timing, dose and modality of ICG administration, sensitivity, specificity and accuracy of fluorescence diagnosis of peritoneal nodules were extracted and analyzed. Results Out of 192 screened papers, we finally retrieved 7 series reporting ICG-guided detection of peritoneal carcinomatosis. Two papers reported the same cases, thus only 6 series were analyzed, for a total of 71 patients and 353 peritoneal nodules. The investigated tumors were colorectal carcinomas in 28 cases, hepatocellular carcinoma in 16 cases, ovarian cancer in 26 cases and endometrial cancer in 1 case. In all but 4 cases, the clinical setting was an elective intervention in patients known as having peritoneal carcinomatosis. No series reported a laparoscopic procedure. Technical data of ICG management were consistent across the studies. Overall, 353 lesions were harvested and singularly evaluated. Sensitivity varied from 72.4 to 100%, specificity from 54.2 to 100%. Two series reported that planned intervention changed in 25 and 29% of patients, respectively. Conclusion Indocyanine Green based fluorescence of peritoneal carcinomatosis is a promising intraoperative tool for detection and characterization of peritoneal nodules in patients with colorectal, hepatocellular, ovarian carcinomas. Further prospective studies are needed to fix its actual diagnostic value on these and other abdominal malignancies with frequent spread to peritoneum.
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Affiliation(s)
- Gian Luca Baiocchi
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy. .,Oncoteam Peritoneal Surface Malignancies, SICO (Italian Society of Surgical Oncology), Brescia, Italy.
| | - Federico Gheza
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Sarah Molfino
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Luca Arru
- Centre Hospitalier de Luxembourg, Service de Chirurgie Generale, Luxemborg City, Luxembourg
| | - Marco Vaira
- Oncoteam Peritoneal Surface Malignancies, SICO (Italian Society of Surgical Oncology), Brescia, Italy.,Surgical Oncology Unit, Candiolo Cancer Institute, FPO - IRCCS, Str. Prov.le 142, km. 3,95, 10060, Candiolo, TO, Italy
| | - Simone Giacopuzzi
- Department of Surgery, General and Upper G.I. Surgery Division, University of Verona, Verona, Italy
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Mendive‐Tapia L, Wang J, Vendrell M. Fluorescent cyclic peptides for cell imaging. Pept Sci (Hoboken) 2020. [DOI: 10.1002/pep2.24181] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Jinling Wang
- Centre for Inflammation Research The University of Edinburgh Edinburgh UK
| | - Marc Vendrell
- Centre for Inflammation Research The University of Edinburgh Edinburgh UK
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Reyners AKL, Broekman KE, Glaudemans AWJM, Brouwers AH, Arts HJG, van der Zee AGJ, de Vries EGE, Jalving M. Molecular imaging in ovarian cancer. Ann Oncol 2017; 27 Suppl 1:i23-i29. [PMID: 27141066 DOI: 10.1093/annonc/mdw091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Ovarian cancer has a high mortality and novel-targeted treatment strategies have not resulted in breakthroughs for this disease. Insight into the molecular characteristics of ovarian tumors may improve diagnosis and selection of patients for treatment with targeted therapies. A potential way to achieve this is by means of molecular imaging. Generic tumor processes, such as glucose metabolism ((18)F-fluorodeoxyglucose) and DNA synthesis ((18)F-fluorodeoxythymidine), can be visualized non-invasively. More specific targets, such as hormone receptors, growth factor receptors, growth factors and targets of immunotherapy, can also be visualized. Molecular imaging can capture data on intra-patient tumor heterogeneity and is of potential value for individualized, target-guided treatment selection. Early changes in molecular characteristics during therapy may serve as early predictors of response. In this review, we describe the current knowledge on molecular imaging in the diagnosis and as an upfront or early predictive biomarker in patients with ovarian cancer.
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Affiliation(s)
| | | | | | - A H Brouwers
- Department of Nuclear Medicine and Molecular Imaging
| | - H J G Arts
- Department of Gynecological Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - A G J van der Zee
- Department of Gynecological Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Volpi D, Tullis IDC, Barber PR, Augustyniak EM, Smart SC, Vallis KA, Vojnovic B. Electrically tunable fluidic lens imaging system for laparoscopic fluorescence-guided surgery. BIOMEDICAL OPTICS EXPRESS 2017; 8:3232-3247. [PMID: 28717564 PMCID: PMC5508825 DOI: 10.1364/boe.8.003232] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 05/24/2017] [Accepted: 05/24/2017] [Indexed: 05/20/2023]
Abstract
The addition of fluorescence guidance in laparoscopic procedures has gained significant interest in recent years, particularly through the use of near infrared (NIR) markers. In this work we present a novel laparoscope camera coupler based on an electrically tunable fluidic lens that permits programmable focus control and has desirable achromatic performance from the visible to the NIR. Its use extends the lower working distance limit and improves detection sensitivity, important for work with molecularly targeted fluorescence markers. We demonstrate its superior optical performance in laparoscopic fluorescence-guided surgery. In vivo results using a tumor specific molecular probe and a nonspecific NIR dye are presented.
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Affiliation(s)
- Davide Volpi
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Iain D. C. Tullis
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Paul R. Barber
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Edyta M. Augustyniak
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Sean C. Smart
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Katherine A. Vallis
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
| | - Borivoj Vojnovic
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
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Han Z, Wu Y, Wang K, Xiao Y, Cheng Z, Sun X, Shen B. Analysis of progress and challenges for various patterns of c-MET-targeted molecular imaging: a systematic review. EJNMMI Res 2017; 7:41. [PMID: 28485003 PMCID: PMC5422222 DOI: 10.1186/s13550-017-0286-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Accepted: 04/17/2017] [Indexed: 01/27/2023] Open
Abstract
Background Mesenchymal–epithelial transition factor also named c-MET is a receptor tyrosine kinase for the hepatocyte growth factor that plays a pivotal role in tumorigenesis. c-MET-targeted therapies have been tested in preclinical models and patients, with significant benefits for cancer treatment. In recent years, many studies have shown that the expression level and activation status of c-MET are closely correlated to c-MET-targeted therapy response and clinical prognosis, thus highlighting the importance of evaluating the c-MET status during and prior to targeted therapy. Molecular imaging allows the monitoring of abnormal alterations of c-MET in real time and in vivo. Results In this review, we initially summarize the recent advances in c-MET-targeted molecular imaging, with a special focus on the development of imaging agents ranging in size from monoclonal antibody to small molecule. The aim of this review is to report the preclinical results and clinical application of all molecular imaging studies completed until now for in vivo detection of c-MET in cancer, in order to be beneficial to development of molecular probe and the combination of molecular imaging technologies for in vivo evaluation of c-MET. Various molecular probe targeted to c-MET possesses distinctive advantages and disadvantages. For example, antibody-based probes have high binding affinity but with long metabolic cycle as well as remarkable immunogenicity. Conclusions Although studies for c-MET-targeted molecular imaging have made many important advances, most of imaging agents specifically target to extracellular area of c-MET receptor; however, it is difficult to reflect entirely activation of c-MET. Therefore, small molecule probes based on tyrosine kinase inhibitors, which could target to intracellular area of c-MET without any immunogenicity, should be paid more attention.
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Affiliation(s)
- Zhaoguo Han
- Molecular Imaging Research Center, Harbin Medical University, 766Xiangan N street, Songbei District, Harbin, Heilongjiang, 150028, China.,TOF-PET/CT/MR center, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yongyi Wu
- Molecular Imaging Research Center, Harbin Medical University, 766Xiangan N street, Songbei District, Harbin, Heilongjiang, 150028, China.,TOF-PET/CT/MR center, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Kai Wang
- Molecular Imaging Research Center, Harbin Medical University, 766Xiangan N street, Songbei District, Harbin, Heilongjiang, 150028, China.,TOF-PET/CT/MR center, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yadi Xiao
- Molecular Imaging Research Center, Harbin Medical University, 766Xiangan N street, Songbei District, Harbin, Heilongjiang, 150028, China.,TOF-PET/CT/MR center, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Zhen Cheng
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, Stanford University School of Medicine, Lucas Center, Room P089, 1201 Welch Rd, Stanford, CA, 94305-5484, USA.
| | - Xilin Sun
- Molecular Imaging Research Center, Harbin Medical University, 766Xiangan N street, Songbei District, Harbin, Heilongjiang, 150028, China. .,TOF-PET/CT/MR center, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, China. .,Molecular Imaging Program at Stanford (MIPS), Department of Radiology, Stanford University School of Medicine, Lucas Center, Room P089, 1201 Welch Rd, Stanford, CA, 94305-5484, USA.
| | - Baozhong Shen
- Molecular Imaging Research Center, Harbin Medical University, 766Xiangan N street, Songbei District, Harbin, Heilongjiang, 150028, China. .,TOF-PET/CT/MR center, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, China.
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Esfahani SA, Heidari P, Kim SA, Ogino S, Mahmood U. Optical Imaging of Mesenchymal Epithelial Transition Factor (MET) for Enhanced Detection and Characterization of Primary and Metastatic Hepatic Tumors. Theranostics 2016; 6:2028-2038. [PMID: 27698938 PMCID: PMC5039678 DOI: 10.7150/thno.15718] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 07/22/2016] [Indexed: 12/13/2022] Open
Abstract
Purpose: To assess optical imaging of Mesenchymal-Epithelial Transition factor (MET) for delineation and characterization of intrahepatic models of human hepatocellular carcinoma (HCC) and metastatic colorectal cancer (CRC), and thereby demonstrate its potential use in precision oncology. Materials and Methods: MET expression in human CRC and HCC was assessed in tissue microarrays. We used GE-137, a modified cyanine 5-tagged peptide for MET targeting. HepG2 and Huh-7 (HCC) and HT-29 (CRC) cells with MET overexpression, and LNCaP cells (negative control) with minimal MET expression were incubated with the probe. Correlation between the relative fluorescence signal intensity and cellular MET expression level was assessed. Flow cytometry was used to assess probe specific binding and dissociation constant (Kd). Orthotopic xenograft models of human HCC and metastatic CRC were generated in nu/nu mice by subcapsular implantation of cells. Epifluorescence imaging was performed to capture the changes in deferential probe accumulation at different time points after injection. Target-to-liver background ratio (TBR) was calculated and the probe biodistribution within different organs was assessed. Histopathologic analysis of extracted xenografts was performed to correlate the tumors MET expression with probe uptake by cancer cells. Results: Approximately 91.5% of HCC and 81% of CRC microarray cores showed MET expression. HCC and CRC cells incubated with the probe showed substantial fluorescence compared to control LNCaP, with strong correlation between fluorescence signal and MET expression (R2 = 0.99, p < 0.001). Probe binding affinity to MET (Kd) was measured to be 2.9 ± 0.36 nM. Epifluorescence imaging showed intense uptake in subcapsular tumors with peak TBR of 5.46 ± 0.46 in Huh-7, 3.55 ± 0.38 in HepG2, and 15.93 ± 0.61 in HT-29 orthotopic xenografts at 4 hours post-injection (mean ± standard deviation). We demonstrated that in vivo probe uptake in xenografts is specific and can be blocked when co-injected with unlabeled peptide; for instance the epifluorescence TBR is reduced from 13.5 ± 1.2 to 1.7 ± 0.3 (p < 0.05) in HT-29 and from 5.3 ± 0.8 to 1.4 ± 0.2 (p < 0.05) in Huh-7 xenografts after co-injection with unlabeled peptides. Biodistribution studies showed predominantly renal clearance of the probe. Conclusion: Optical imaging of MET resulted in high TBR in animal models of primary and metastatic hepatic tumors suggesting its utility for procedural guidance.
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Arulappu A, Battle M, Eisenblaetter M, McRobbie G, Khan I, Monypenny J, Weitsman G, Galazi M, Hoppmann S, Gazinska P, Wulaningsih W, Dalsgaard GT, Macholl S, Ng T. c-Met PET Imaging Detects Early-Stage Locoregional Recurrence of Basal-Like Breast Cancer. J Nucl Med 2016; 57:765-70. [PMID: 26635342 DOI: 10.2967/jnumed.115.164384] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 11/13/2015] [Indexed: 12/28/2022] Open
Abstract
UNLABELLED Locoregional recurrence of breast cancer poses significant clinical problems because of frequent inoperability once the chest wall is involved. Early detection of recurrence by molecular imaging agents against therapeutically targetable receptors, such as c-Met, would be of potential benefit. The aim of this study was to assess (18)F-AH113804, a peptide-based molecular imaging agent with high affinity for human c-Met, for the detection of early-stage locoregional recurrence in a human basal-like breast cancer model, HCC1954. METHODS HCC1954 tumor-bearing xenograft models were established, and (18)F-AH113804 was administered. Distribution of radioactivity was determined via PET at 60 min after radiotracer injection. PET and CT images were acquired 10 d after tumor inoculation, to establish baseline distribution and uptake, and then on selected days after surgical tumor resection. CT images and caliper were used to determine the tumor volume. Radiotracer uptake was assessed by (18)F-AH113804 PET imaging. c-Met expression was assessed by immunofluorescence imaging of tumor samples and correlated with (18)F-AH113804 PET imaging results. RESULTS Baseline uptake of (18)F-AH113804, determined in tumor-bearing animals after 10 d, was approximately 2-fold higher in the tumor than in muscle tissue or the contralateral mammary fat pad. The tumor growth rate, determined from CT images, was comparable between the animals with recurrent tumors, with detection of tumors of low volume (<10 mm(3)) only possible by day 20 after tumor resection. (18)F-AH113804 PET detected local tumor recurrence as early as 6 d after surgery in the recurrent tumor-bearing animals and exhibited significantly higher (18)F-AH113804 uptake (in comparison to mammary fatty tissue), with a target-to-background (muscle) ratio of approximately 3:1 (P < 0.01). The c-Met expression of individual resected tumor samples, determined by immunofluorescence, correlated with the respective (18)F-AH113804 imaging signals (r = 0.82, P < 0.05). CONCLUSION (18)F-AH113804 PET provides a new diagnostic tool for the detection of c-Met-expressing primary tumor and has potential utility for the detection of locoregional recurrence from an early stage.
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Affiliation(s)
- Appitha Arulappu
- Richard Dimbleby Department of Cancer Research, Kings College London, London, United Kingdom
| | - Mark Battle
- GE Healthcare, Life Sciences, Amersham, United Kingdom
| | - Michel Eisenblaetter
- Richard Dimbleby Department of Cancer Research, Kings College London, London, United Kingdom Division of Imaging Sciences & Biomedical Engineering, King's College London, London, United Kingdom Department of Clinical Radiology, University Hospital Münster, Münster, Germany
| | | | - Imtiaz Khan
- GE Healthcare, Life Sciences, Amersham, United Kingdom
| | - James Monypenny
- Richard Dimbleby Department of Cancer Research, Kings College London, London, United Kingdom
| | - Gregory Weitsman
- Richard Dimbleby Department of Cancer Research, Kings College London, London, United Kingdom
| | - Myria Galazi
- Richard Dimbleby Department of Cancer Research, Kings College London, London, United Kingdom
| | | | - Patrycja Gazinska
- Breast Cancer NOW Unit, King's College London School of Medicine, London, United Kingdom
| | - Wulan Wulaningsih
- Richard Dimbleby Department of Cancer Research, Kings College London, London, United Kingdom
| | | | - Sven Macholl
- GE Healthcare, Life Sciences, Amersham, United Kingdom Barts Cancer Institute, Queen Mary University of London, London, United Kingdom; and
| | - Tony Ng
- Richard Dimbleby Department of Cancer Research, Kings College London, London, United Kingdom Breast Cancer NOW Unit, King's College London School of Medicine, London, United Kingdom UCL Cancer Institute, University College London, London, United Kingdom
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11
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Han C, Xu H, Wang R, Wang K, Dai Y, Liu Q, Guo M, Li J, Xu K. Synthesis of a multifunctional manganese(ii)–carbon dots hybrid and its application as an efficient magnetic-fluorescent imaging probe for ovarian cancer cell imaging. J Mater Chem B 2016; 4:5798-5802. [PMID: 32263751 DOI: 10.1039/c6tb01250g] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A magnetic-fluorescent manganese(ii)–carbon dots hybrid nanoprobe was successfully prepared for ovarian cancer cell targeting and bifunctional MRI and optical imaging.
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Affiliation(s)
- Cuiping Han
- School of Medical Imaging
- Xuzhou Medical University
- Xuzhou 221004
- China
- Department of Radiology
| | - Huiting Xu
- Department of Radiology
- Affiliated Hospital of Xuzhou Medical College
- Xuzhou 221004
- China
- Department of Radiology
| | - Ru Wang
- School of Medical Imaging
- Xuzhou Medical University
- Xuzhou 221004
- China
| | - Keying Wang
- School of Medical Imaging
- Xuzhou Medical University
- Xuzhou 221004
- China
| | - Yue Dai
- School of Medical Imaging
- Xuzhou Medical University
- Xuzhou 221004
- China
| | - Qi Liu
- Department of Radiology
- Affiliated Hospital of Xuzhou Medical College
- Xuzhou 221004
- China
| | - Mengxue Guo
- School of Medical Imaging
- Xuzhou Medical University
- Xuzhou 221004
- China
| | - Jingjing Li
- School of Medical Imaging
- Xuzhou Medical University
- Xuzhou 221004
- China
- Department of Radiology
| | - Kai Xu
- School of Medical Imaging
- Xuzhou Medical University
- Xuzhou 221004
- China
- Department of Radiology
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