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Arayici ME, İnal A, Basbinar Y, Olgun N. Evaluation of the diagnostic and prognostic clinical values of circulating tumor DNA and cell-free DNA in pancreatic malignancies: a comprehensive meta-analysis. Front Oncol 2024; 14:1382369. [PMID: 38983931 PMCID: PMC11231086 DOI: 10.3389/fonc.2024.1382369] [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: 02/05/2024] [Accepted: 06/10/2024] [Indexed: 07/11/2024] Open
Abstract
Background The diagnostic and prognostic clinical value of circulating tumor DNA (ctDNA) and cell-free DNA (cfDNA) in pancreatic malignancies are unclear. Herein, we aimed to perform a meta-analysis to evaluate ctDNA and cfDNA as potential diagnostic and prognostic biomarkers. Methods PRISMA reporting guidelines were followed closely for conducting the current meta-analysis. The PubMed/Medline, Scopus, and Web of Science (WoS) databases were scanned in detail to identify eligible papers for the study. A quality assessment was performed in accordance with the REMARK criteria. The risk ratios (RRs) of the diagnostic accuracy of ctDNA compared to that of carbohydrate antigen 19.9 (CA 19.9) in all disease stages and the hazard ratios (HRs) of the prognostic role of ctDNA in overall survival (OS) were calculated with 95% confidence intervals (CIs). Results A total of 18 papers were evaluated to assess the diagnostic accuracy and prognostic value of biomarkers related to pancreatic malignancies. The pooled analysis indicated that CA19.9 provides greater diagnostic accuracy across all disease stages than ctDNA or cfDNA (RR = 0.64, 95% CI: 0.50-0.82, p < 0.001). Additionally, in a secondary analysis focusing on prognosis, patients who were ctDNA-positive were found to have significantly worse OS (HR = 2.00, 95% CI: 1.51-2.66, p < 0.001). Conclusion The findings of this meta-analysis demonstrated that CA19-9 still has greater diagnostic accuracy across all disease stages than KRAS mutations in ctDNA or cfDNA. Nonetheless, the presence of detectable levels of ctDNA was associated with worse patient outcomes regarding OS. There is a growing need for further research on this topic. Systematic review registration https://doi.org/10.37766/inplasy2023.12.0092, identifier INPLASY2023120092.
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Affiliation(s)
- Mehmet Emin Arayici
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Dokuz Eylül University, İzmir, Türkiye
- Department of Public Health, Faculty of Medicine, Dokuz Eylül University, İzmir, Türkiye
| | - Abdullah İnal
- Department of General Surgery, Faculty of Medicine, İzmir Democracy University, İzmir, Türkiye
| | - Yasemin Basbinar
- Department of Translational Oncology, Institute of Oncology, Dokuz Eylül University, İzmir, Türkiye
| | - Nur Olgun
- Department of Clinical Oncology, Institute of Oncology, Dokuz Eylül University, İzmir, Türkiye
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Chang J, Sherman SK, De Andrade JP, Hoshi H, Howe JR, Chan CHF. Role of Diagnostic Laparoscopy During Pancreatic Cancer Surgery in the Modern Era. J Surg Res 2024; 298:269-276. [PMID: 38636183 DOI: 10.1016/j.jss.2024.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/02/2024] [Accepted: 03/21/2024] [Indexed: 04/20/2024]
Abstract
INTRODUCTION Despite improvements in preoperative image resolution, approximately 10% of curative-intent resection attempts for pancreatic ductal adenocarcinoma are aborted at the time of operation. To avoid nontherapeutic laparotomy, many surgeons perform intraoperative diagnostic laparoscopy (DL) to identify radiographically occult metastatic disease. There are no consensus guidelines regarding DL in pancreatic cancer. The goal of this study is to investigate the efficacy of same-procedure DL at avoiding nontherapeutic laparotomy. METHODS A single-institution retrospective review was performed from 2016 to 2022, identifying 196 patients with pancreatic ductal adenocarcinoma who were taken to the operating room for open curative-intent resection. Patient demographic, tumor characteristic, treatment, and outcome data were abstracted. Univariate and multivariate Cox hazard ratio analysis was performed to investigate risk factors for overall survival and recurrence-free survival. Number needed to treat (NNT) was calculated to identify number of DLs necessary to avoid one nontherapeutic laparotomy. RESULTS Curative-intent resection was achieved in 161 (82.1%) patients. One hundred twenty six (64.0%) patients received DL prior to resection and DL identified metastatic disease in three (2.4%) patients with an NNT of 42. NNT of DL in a subgroup analysis performed on clinically high-risk patients (defined by preoperative or preneoadjuvant therapy carbohydrate antigen 19-9 > 500 U/mL) is 11. Receipt of DL did not prolong operative times in patients receiving pancreaticoduodenectomy when accounting for completed versus aborted resection. CONCLUSIONS Although intraoperative DL is a short procedure with minimal morbidity, these data demonstrate that same-procedure DL has potential efficacy in avoiding nontherapeutic laparotomy only in a subgroup of clinically high-risk patients. Focus should remain on optimizing preoperative patient selection and further investigating novel diagnostic markers predictive of occult metastatic disease.
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Affiliation(s)
- Jeremy Chang
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Scott K Sherman
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Division of Surgical Oncology, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Holden Comprehensive Cancer Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - James P De Andrade
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Division of Surgical Oncology, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Holden Comprehensive Cancer Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Hisakazu Hoshi
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Division of Surgical Oncology, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Holden Comprehensive Cancer Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - James R Howe
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Division of Surgical Oncology, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Holden Comprehensive Cancer Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Carlos H F Chan
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Division of Surgical Oncology, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Holden Comprehensive Cancer Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
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3
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Varzaru B, Iacob RA, Bunduc S, Manea I, Sorop A, Spiridon A, Chelaru R, Croitoru A, Topala M, Becheanu G, Dumbrava M, Dima S, Popescu I, Gheorghe C. Prognostic Value of Circulating Cell-Free DNA Concentration and Neutrophil-to-Lymphocyte Ratio in Patients with Pancreatic Ductal Adenocarcinoma: A Prospective Cohort Study. Int J Mol Sci 2024; 25:2854. [PMID: 38474101 DOI: 10.3390/ijms25052854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/25/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
Circulating cell-free DNA (ccfDNA) quantity correlates with the clinical characteristics and prognosis of various cancer types. We investigated whether ccfDNA levels and the neutrophil-to-lymphocyte ratio (NLR) have prognostic value in patients with pancreatic ductal adenocarcinoma (PDAC). Peripheral blood was collected from 82 patients with PDAC prior to any diagnostic procedure or the administration of chemotherapy. Plasma DNA was isolated, and ccfDNA concentration and NLR were determined. We found that ccfDNA levels were correlated with age and tumor burden. Moreover, higher values of NLR (≥3.31) were linked with worse overall survival (OS) (4 vs. 10 months; log rank p = 0.011), and an elevated ccfDNA concentration (≥25.79 ng/mL) was strongly associated with shorter OS (4 vs. 8 months; log rank p = 0.009). According to the results of the multivariable Cox regression analysis, the baseline concentration of ccfDNA was an independent prognostic factor for OS (HR 0.45, 95% CI 0.21-0.97, p = 0.041). Furthermore, the combination of ccfDNA levels with NLR greatly enhanced the prognostic accuracy of PDAC patients. Our study demonstrates that ccfDNA concentration and NLR are independent predictors of survival in PDAC. Subsequent studies should validate this combination as a prognostic indicator in PDAC patients and assess its utility for guiding therapeutic decisions.
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Affiliation(s)
- Bianca Varzaru
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Razvan Andrei Iacob
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, 022238 Bucharest, Romania
| | - Stefania Bunduc
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, 022238 Bucharest, Romania
| | - Ioana Manea
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Andrei Sorop
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Andreea Spiridon
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Raluca Chelaru
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Adina Croitoru
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, 022238 Bucharest, Romania
| | - Mihaela Topala
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Gabriel Becheanu
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, 022238 Bucharest, Romania
| | - Mona Dumbrava
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, 022238 Bucharest, Romania
| | - Simona Dima
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, 022238 Bucharest, Romania
| | - Irinel Popescu
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, 022238 Bucharest, Romania
| | - Cristian Gheorghe
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, 022238 Bucharest, Romania
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Jain M, Atayan D, Rakhmatullin T, Dakhtler T, Popov P, Kim P, Viborniy M, Gontareva I, Samokhodskaya L, Egorov V. Cell-Free Tumor DNA Detection-Based Liquid Biopsy of Plasma and Bile in Patients with Various Pancreatic Neoplasms. Biomedicines 2024; 12:220. [PMID: 38255325 PMCID: PMC10813046 DOI: 10.3390/biomedicines12010220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
The key challenge of cell-free tumor DNA (cftDNA) analysis in pancreatic ductal adenocarcinoma (PDAC) is overcoming its low detection rate, which is mainly explained by the overall scarcity of this biomarker in plasma. Obstructive jaundice is a frequent event in PDAC, which enables bile collection as a part of routine treatment. The aim of this study was to evaluate the performance of KRAS-mutated cftDNA detection-based liquid biopsy of plasma and bile in patients with pancreatic neoplasms using digital droplet PCR. The study included healthy volunteers (n = 38), patients with PDAC (n = 95, of which 20 had obstructive jaundice) and other pancreatic neoplasms (OPN) (n = 18). The sensitivity and specificity compared to the control group were 61% and 100% (AUC-ROC-0.805), and compared to the OPN group, they were 61% and 94% (AUC-ROC-0.794), respectively. Bile exhibited higher cftDNA levels than plasma (248.6 [6.743; 1068] vs. 3.26 [0; 19.225] copies/mL) and a two-fold higher detection rate (p < 0.01). Plasma cftDNA levels were associated with distant metastases, tumor size, and CA 19-9 (p < 0.05). The probability of survival was worse in patients with higher levels of cftDNA in plasma (hazard ratio-2.4; 95% CI: 1.3-4.6; p = 0.005) but not in bile (p > 0.05). Bile is a promising alternative to plasma in patients with obstructive jaundice, at least for the diagnostic purposes of liquid biopsy.
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Affiliation(s)
- Mark Jain
- Medical Research and Educational Center, Lomonosov Moscow State University, 119992 Moscow, Russia;
| | - David Atayan
- Joint Stock Company “Ilyinsky Hospital”, 143421 Moscow, Russia; (D.A.); (T.D.); (P.P.); (P.K.); (M.V.); (I.G.); (V.E.)
| | - Tagir Rakhmatullin
- Department of Fundamental Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Tatyana Dakhtler
- Joint Stock Company “Ilyinsky Hospital”, 143421 Moscow, Russia; (D.A.); (T.D.); (P.P.); (P.K.); (M.V.); (I.G.); (V.E.)
| | - Pavel Popov
- Joint Stock Company “Ilyinsky Hospital”, 143421 Moscow, Russia; (D.A.); (T.D.); (P.P.); (P.K.); (M.V.); (I.G.); (V.E.)
| | - Pavel Kim
- Joint Stock Company “Ilyinsky Hospital”, 143421 Moscow, Russia; (D.A.); (T.D.); (P.P.); (P.K.); (M.V.); (I.G.); (V.E.)
| | - Mikhail Viborniy
- Joint Stock Company “Ilyinsky Hospital”, 143421 Moscow, Russia; (D.A.); (T.D.); (P.P.); (P.K.); (M.V.); (I.G.); (V.E.)
| | - Iuliia Gontareva
- Joint Stock Company “Ilyinsky Hospital”, 143421 Moscow, Russia; (D.A.); (T.D.); (P.P.); (P.K.); (M.V.); (I.G.); (V.E.)
| | - Larisa Samokhodskaya
- Medical Research and Educational Center, Lomonosov Moscow State University, 119992 Moscow, Russia;
| | - Vyacheslav Egorov
- Joint Stock Company “Ilyinsky Hospital”, 143421 Moscow, Russia; (D.A.); (T.D.); (P.P.); (P.K.); (M.V.); (I.G.); (V.E.)
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5
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Seyhan AA. Circulating microRNAs as Potential Biomarkers in Pancreatic Cancer-Advances and Challenges. Int J Mol Sci 2023; 24:13340. [PMID: 37686149 PMCID: PMC10488102 DOI: 10.3390/ijms241713340] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/21/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
There is an urgent unmet need for robust and reliable biomarkers for early diagnosis, prognosis, and prediction of response to specific treatments of many aggressive and deadly cancers, such as pancreatic cancer, and liquid biopsy-based miRNA profiling has the potential for this. MiRNAs are a subset of non-coding RNAs that regulate the expression of a multitude of genes post-transcriptionally and thus are potential diagnostic, prognostic, and predictive biomarkers and have also emerged as potential therapeutics. Because miRNAs are involved in the post-transcriptional regulation of their target mRNAs via repressing gene expression, defects in miRNA biogenesis pathway and miRNA expression perturb the expression of a multitude of oncogenic or tumor-suppressive genes that are involved in the pathogenesis of various cancers. As such, numerous miRNAs have been identified to be downregulated or upregulated in many cancers, functioning as either oncomes or oncosuppressor miRs. Moreover, dysregulation of miRNA biogenesis pathways can also change miRNA expression and function in cancer. Profiling of dysregulated miRNAs in pancreatic cancer has been shown to correlate with disease diagnosis, indicate optimal treatment options and predict response to a specific therapy. Specific miRNA signatures can track the stages of pancreatic cancer and hold potential as diagnostic, prognostic, and predictive markers, as well as therapeutics such as miRNA mimics and miRNA inhibitors (antagomirs). Furthermore, identified specific miRNAs and genes they regulate in pancreatic cancer along with downstream pathways can be used as potential therapeutic targets. However, a limited understanding and validation of the specific roles of miRNAs, lack of tissue specificity, methodological, technical, or analytical reproducibility, harmonization of miRNA isolation and quantification methods, the use of standard operating procedures, and the availability of automated and standardized assays to improve reproducibility between independent studies limit bench-to-bedside translation of the miRNA biomarkers for clinical applications. Here I review recent findings on miRNAs in pancreatic cancer pathogenesis and their potential as diagnostic, prognostic, and predictive markers.
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Affiliation(s)
- Attila A. Seyhan
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, Warren Alpert Medical School, Brown University, Providence, RI 02912, USA;
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School, Brown University, Providence, RI 02912, USA
- Joint Program in Cancer Biology, Lifespan Health System and Brown University, Providence, RI 02912, USA
- Legorreta Cancer Center, Brown University, Providence, RI 02912, USA
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6
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Dao J, Conway PJ, Subramani B, Meyyappan D, Russell S, Mahadevan D. Using cfDNA and ctDNA as Oncologic Markers: A Path to Clinical Validation. Int J Mol Sci 2023; 24:13219. [PMID: 37686024 PMCID: PMC10487653 DOI: 10.3390/ijms241713219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
The detection of circulating tumor DNA (ctDNA) in liquid biopsy samples as an oncological marker is being used in clinical trials at every step of clinical management. As ctDNA-based liquid biopsy kits are developed and used in clinics, companies work towards increased convenience, accuracy, and cost over solid biopsies and other oncological markers. The technology used to differentiate ctDNA and cell-free DNA (cfDNA) continues to improve with new tests and methodologies being able to detect down to mutant allele frequencies of 0.001% or 1/100,000 copies. Recognizing this development in technology, the FDA has recently given pre-market approval and breakthrough device designations to multiple companies. The purpose of this review is to look at the utility of measuring total cfDNA, techniques used to differentiate ctDNA from cfDNA, and the utility of different ctDNA-based liquid biopsy kits using relevant articles from PubMed, clinicaltrials.gov, FDA approvals, and company newsletters. Measuring total cfDNA could be a cost-effective, viable prognostic marker, but various factors do not favor it as a monitoring tool during chemotherapy. While there may be a place in the clinic for measuring total cfDNA in the future, the lack of standardization means that it is difficult to move forward with large-scale clinical validation studies currently. While the detection of ctDNA has promising standardized liquid biopsy kits from various companies with large clinical trials ongoing, their applications in screening and minimal residual disease can suffer from lower sensitivity. However, researchers are working towards solutions to these issues with innovations in technology, multi-omics, and sampling. With great promise, further research is needed before liquid biopsies can be recommended for everyday clinical management.
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Affiliation(s)
- Jonathan Dao
- Long School of Medicine, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Patrick J. Conway
- Mays Cancer Center, University of Texas Health, San Antonio, TX 78229, USA
- Graduate School of Biomedical Sciences, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Baskaran Subramani
- Mays Cancer Center, University of Texas Health, San Antonio, TX 78229, USA
- Graduate School of Biomedical Sciences, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Devi Meyyappan
- Mays Cancer Center, University of Texas Health, San Antonio, TX 78229, USA
| | - Sammy Russell
- Long School of Medicine, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Daruka Mahadevan
- Long School of Medicine, University of Texas Health San Antonio, San Antonio, TX 78229, USA
- Mays Cancer Center, University of Texas Health, San Antonio, TX 78229, USA
- Graduate School of Biomedical Sciences, University of Texas Health San Antonio, San Antonio, TX 78229, USA
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Raufi AG, May MS, Hadfield MJ, Seyhan AA, El-Deiry WS. Advances in Liquid Biopsy Technology and Implications for Pancreatic Cancer. Int J Mol Sci 2023; 24:4238. [PMID: 36835649 PMCID: PMC9958987 DOI: 10.3390/ijms24044238] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 12/23/2022] [Accepted: 12/29/2022] [Indexed: 02/23/2023] Open
Abstract
Pancreatic cancer is a highly aggressive malignancy with a climbing incidence. The majority of cases are detected late, with incurable locally advanced or metastatic disease. Even in individuals who undergo resection, recurrence is unfortunately very common. There is no universally accepted screening modality for the general population and diagnosis, evaluation of treatment response, and detection of recurrence relies primarily on the use of imaging. Identification of minimally invasive techniques to help diagnose, prognosticate, predict response or resistance to therapy, and detect recurrence are desperately needed. Liquid biopsies represent an emerging group of technologies which allow for non-invasive serial sampling of tumor material. Although not yet approved for routine use in pancreatic cancer, the increasing sensitivity and specificity of contemporary liquid biopsy platforms will likely change clinical practice in the near future. In this review, we discuss the recent technological advances in liquid biopsy, focusing on circulating tumor DNA, exosomes, microRNAs, and circulating tumor cells.
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Affiliation(s)
- Alexander G. Raufi
- Division of Hematology/Oncology, Department of Medicine, Lifespan Health System, Providence, RI 02903, USA
- Legorreta Cancer Center, Brown University, Providence, RI 02903, USA
- Joint Program in Cancer Biology, Brown University, Providence, RI 02903, USA
| | - Michael S. May
- Division of Hematology/Oncology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Matthew J. Hadfield
- Division of Hematology/Oncology, Department of Medicine, Lifespan Health System, Providence, RI 02903, USA
- Legorreta Cancer Center, Brown University, Providence, RI 02903, USA
| | - Attila A. Seyhan
- Legorreta Cancer Center, Brown University, Providence, RI 02903, USA
- Joint Program in Cancer Biology, Brown University, Providence, RI 02903, USA
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School, Brown University, Providence, RI 02903, USA
| | - Wafik S. El-Deiry
- Division of Hematology/Oncology, Department of Medicine, Lifespan Health System, Providence, RI 02903, USA
- Legorreta Cancer Center, Brown University, Providence, RI 02903, USA
- Joint Program in Cancer Biology, Brown University, Providence, RI 02903, USA
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School, Brown University, Providence, RI 02903, USA
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