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Al Bakir I, Curtius K, Cresswell GD, Grant HE, Nasreddin N, Smith K, Nowinski S, Guo Q, Belnoue-Davis HL, Fisher J, Clarke T, Kimberley C, Mossner M, Dunne PD, Loughrey MB, Speight A, East JE, Wright NA, Rodriguez-Justo M, Jansen M, Moorghen M, Baker AM, Leedham SJ, Hart AL, Graham TA. Low coverage whole genome sequencing of low-grade dysplasia strongly predicts colorectal cancer risk in ulcerative colitis. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.07.08.24309811. [PMID: 39040198 PMCID: PMC11261962 DOI: 10.1101/2024.07.08.24309811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Patients with inflammatory bowel disease (IBD) are at increased risk of colorectal cancer (CRC), and this risk increases dramatically in those who develop low-grade dysplasia (LGD). However, there is currently no accurate way to risk-stratify patients with LGD, leading to both over- and under-treatment of cancer risk. Here we show that the burden of somatic copy number alterations (CNAs) within resected LGD lesions strongly predicts future cancer development. We performed a retrospective multi-centre validated case-control study of n=122 patients (40 progressors, 82 non-progressors, 270 LGD regions). Low coverage whole genome sequencing revealed CNA burden was significantly higher in progressors than non-progressors (p=2×10-6 in discovery cohort) and was a very significant predictor of CRC risk in univariate analysis (odds ratio = 36; p=9×10-7), outperforming existing clinical risk factors such as lesion size, shape and focality. Optimal risk prediction was achieved with a multivariate model combining CNA burden with the known clinical risk factor of incomplete LGD resection. The measurement of CNAs in LGD lesions is a robust, low-cost and rapidly translatable predictor of CRC risk in IBD that can be used to direct management and so prevent CRC in high-risk individuals whilst sparing those at low-risk from unnecessary intervention.
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Affiliation(s)
- Ibrahim Al Bakir
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
- Inflammatory Bowel Disease Unit, St. Mark’s Hospital, Harrow, United Kingdom
- Chelsea & Westminster Hospital, London, United Kingdom
| | - Kit Curtius
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
- Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
| | - George D Cresswell
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
- St. Anna Children’s Cancer Research Institute, Vienna, Austria
| | - Heather E Grant
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
| | | | - Kane Smith
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
| | - Salpie Nowinski
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
| | - Qingli Guo
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
| | | | - Jennifer Fisher
- Inflammatory Bowel Disease Unit, St. Mark’s Hospital, Harrow, United Kingdom
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
| | - Theo Clarke
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
| | - Christopher Kimberley
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
| | - Maximilian Mossner
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
| | - Philip D Dunne
- Queen’s University Belfast, Northern Ireland, United Kingdom
| | | | - Ally Speight
- Newcastle NHS Foundation Trust, Newcastle, United Kingdom
| | - James E East
- Nuffield Department of Medicine, University of Oxford, United Kingdom
| | - Nicholas A Wright
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
| | | | - Marnix Jansen
- Department of Pathology, University College London Hospital NHS Trust, London, UK
- UCL Cancer Institute, University College London, London, UK
| | - Morgan Moorghen
- Inflammatory Bowel Disease Unit, St. Mark’s Hospital, Harrow, United Kingdom
| | - Ann-Marie Baker
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
| | | | - Ailsa L Hart
- Inflammatory Bowel Disease Unit, St. Mark’s Hospital, Harrow, United Kingdom
- Department of Metabolism, Digestion & Reproduction, Imperial College London, United Kingdom
| | - Trevor A Graham
- Barts Cancer Institute, Queen Mary University of London, United Kingdom
- Centre for Evolution and Cancer, Institute of Cancer Research, London, United Kingdom
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Choi WT, Rabinovitch PS. DNA flow cytometry for detection of genomic instability as a cancer precursor in the gastrointestinal tract. Methods Cell Biol 2024; 186:25-49. [PMID: 38705603 DOI: 10.1016/bs.mcb.2024.02.013] [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] [Indexed: 05/07/2024]
Abstract
One of the earliest applications of flow cytometry was the measurement of DNA content in cells. This method is based on the ability to stain DNA in a stoichiometric manner (i.e., the amount of stain is directly proportional to the amount of DNA within the cell). For more than 40years, a number of studies have consistently demonstrated the utility of DNA flow cytometry as a potential diagnostic and/or prognostic tool in patients with most epithelial tumors, including pre-invasive lesions (such as dysplasia) in the gastrointestinal tract. However, its availability as a clinical test has been limited to few medical centers due to the requirement for fresh tissue in earlier studies and perceived technical demands. However, more recent studies have successfully utilized formalin-fixed paraffin-embedded (FFPE) tissue to generate high-quality DNA content histograms, demonstrating the feasibility of this methodology. This review summarizes step-by-step methods on how to perform DNA flow cytometry using FFPE tissue and analyze DNA content histograms based on the published consensus guidelines in order to assist in the diagnosis and/or risk stratification of many different epithelial tumors, with particular emphasis on dysplasia associated with Barrett's esophagus and inflammatory bowel disease.
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Affiliation(s)
- Won-Tak Choi
- Department of Pathology, University of California at San Francisco, San Francisco, CA, United States.
| | - Peter S Rabinovitch
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, United States
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Wu B, Liu YJ, Rogers J, Liu YZ, Rabinovitch PS, Small T, Swanson PE, Yeh MM. Role of DNA Flow Cytometry in the Diagnosis of Malignancy in Bile Duct Biopsies Using Paraffin-Embedded Tissue. Am J Clin Pathol 2022; 157:417-425. [PMID: 34542607 DOI: 10.1093/ajcp/aqab130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/02/2021] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVES Histopathologic evaluation of bile biopsies for biliary strictures is frequently challenging and is affected by interobserver disagreement. Reliable ancillary tests that can help differentiate benign from malignant are not available. This study aimed to evaluate whether DNA content abnormalities detected by flow cytometry on formalin-fixed, paraffin-embedded (FFPE) tissue can help differentiate benign/reactive, dysplastic from malignant cell populations in bile duct biopsies. METHODS We performed DNA flow cytometry on 30 FFPE bile duct biopsies in 5 well-defined diagnostic categories: (1) negative for dysplasia (NED), (2) low-grade dysplasia (LGD), (3) high-grade dysplasia (HGD), (4) carcinoma (CA), and (5) indefinite for dysplasia (IND). RESULTS Abnormal DNA content was detected in 0 NED, 5 LGD (62.5%), 2 HGD (33.3%), 3 CA (60%), and 4 IND (80%) samples. As a diagnostic marker, the estimated sensitivity, specificity, positive predictive value, and negative predictive value were 63%, 100%, 100%, and 50%, respectively, for diagnosing HGD or CA. CONCLUSIONS DNA flow cytometry analysis is a useful ancillary test for the interpretation of bile duct biopsies. DNA content abnormalities, when correlated with histologic findings, will not only help confirm the morphologic impression but also identify patients who are at a higher risk of developing malignancy.
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Affiliation(s)
- Bicong Wu
- Departments of Laboratory Medicine and Pathology, Seattle, WA, USA
| | - Yong-Jun Liu
- Departments of Laboratory Medicine and Pathology, Seattle, WA, USA
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Jessica Rogers
- Departments of Laboratory Medicine and Pathology, Seattle, WA, USA
| | - Yao-Zhong Liu
- Department of Biostatistics and Data Science, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | | | - Thomas Small
- Departments of Laboratory Medicine and Pathology, Seattle, WA, USA
| | - Paul E Swanson
- Departments of Laboratory Medicine and Pathology, Seattle, WA, USA
- Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Matthew M Yeh
- Departments of Laboratory Medicine and Pathology, Seattle, WA, USA
- Medicine, University of Washington School of Medicine, Seattle, WA, USA
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Wan J, Wang X, Zhang Y, Chen M, Wang M, Wu K, Liang J. Systematic review with meta-analysis: incidence and factors for progression to advanced neoplasia in inflammatory bowel disease patients with indefinite and low-grade dysplasia. Aliment Pharmacol Ther 2022; 55:632-644. [PMID: 35166389 DOI: 10.1111/apt.16789] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/23/2021] [Accepted: 01/12/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND Due to limited research on the natural history of indefinite for dysplasia (IND) and low-grade dysplasia (LGD) in inflammatory bowel disease (IBD), the management of these patients is controversial. AIMS This systematic review and meta-analysis aimed to estimate the incidence and identify the risk factors for advanced neoplasia in IBD patients with IND and LGD. METHODS PubMed, Embase and Cochrane Central Register of Controlled Trials were searched until 24 December, 2021, to identify studies that reported pathological results of follow-up colonoscopy or surgery in IBD patients with IND and LGD. The main outcomes were the incidence and risk factors for advanced neoplasia in IBD patients with IND and LGD. RESULTS Based on the analysis of 38 studies, the pooled incidences of advanced neoplasia in IBD patients with IND and LGD were 9.9% (95% CI 4.4%-15.4%) and 10.7% (95% CI 7.0%-14.4%) respectively. The risk factors for advanced neoplasia in IND patients were primary sclerosing cholangitis (PSC) and aneuploidy. The risk factors for advanced neoplasia in LGD patients included male, PSC, previous IND, colonic stricture, index lesion ≥1 cm, distal location, multifocal lesions, distal and flat lesions, nonpolypoid/flat lesions and invisible lesions. CONCLUSIONS The incidence of advanced neoplasia was similar between IND and LGD in IBD patients, as high as one in ten, so more rigorous surveillance is also suggested in IND patients. Since the effects of most factors were derived from the pooled results of only two to three studies, further research was needed to confirm our results.
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Affiliation(s)
- Jian Wan
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Xuan Wang
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yujie Zhang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China.,Department of Histology and Embryology, School of Basic Medicine, Xi'an Medical University, Xi'an, China
| | - Min Chen
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Min Wang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Kaichun Wu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Jie Liang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
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Lee H, Rabinovitch PS, Mattis AN, Lauwers GY, Choi WT. Non-conventional dysplasia in inflammatory bowel disease is more frequently associated with advanced neoplasia and aneuploidy than conventional dysplasia. Histopathology 2020; 78:814-830. [PMID: 33155325 DOI: 10.1111/his.14298] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/31/2020] [Accepted: 11/03/2020] [Indexed: 12/21/2022]
Abstract
AIMS Several different non-conventional morphological patterns of epithelial dysplasia have been recently described in inflammatory bowel disease (IBD), but there is limited information regarding their clinicopathological and molecular features, as well as potential risk for high-grade dysplasia (HGD) or colorectal cancer (CRC) compared with conventional dysplasia developing in IBD. METHODS AND RESULTS A total of 317 dysplastic lesions from 168 IBD patients were analysed. All lesions were re-reviewed and subtyped as either conventional [including tubular adenoma-like (n = 183) and tubulovillous/villous adenoma-like (n = 56)] or non-conventional dysplasia [including dysplasia with increased Paneth cell differentiation (DPD, n = 40), crypt cell dysplasia (CCD, n = 14), goblet cell deficient (GCD, n = 10), hypermucinous (n = 7), sessile serrated lesion (SSL)-like (n = 4) and traditional serrated adenoma (TSA)-like (n = 3)]. DNA flow cytometry was performed on 70 low-grade conventional (n = 24) and non-conventional (n = 46) dysplastic biopsies to determine their malignant potential and molecular pathways to HGD or CRC. Eleven sporadic tubular adenomas with low-grade dysplasia (LGD) were utilised as controls. Seventy-eight non-conventional dysplastic lesions were identified in 56 (33%) of the 168 patients, whereas 239 conventional dysplastic lesions were identified in 149 (89%) patients. Although both non-conventional and conventional dysplasias were most often graded as LGD at diagnosis (83% and 84%, respectively), non-conventional dysplasia (38%) was more likely to develop HGD or CRC in the same colonic segment than conventional dysplasia (19%) on follow-up (P < 0.001). Almost half (46%) of non-conventional dysplastic samples showed aneuploidy, whereas only 8% of conventional dysplasia (P = 0.002) and 9% of sporadic tubular adenomas (P = 0.037) did. Also, non-conventional dysplasia more frequently presented as a flat/invisible lesion (41%) compared with conventional dysplasia (18%) (P < 0.001). Among the non-conventional subtypes (n = 78), DPD was the most common (n = 40; 51%), followed by CCD (n = 14; 18%), GCD (n = 10; 13%), hypermucinous (n = 7; 9%), SSL-like (n = 4; 5%) and TSA-like (n = 3; 4%) variants. Hypermucinous dysplasia (mean = 2.1 cm) was significantly larger than DPD, SSL-like, TSA-like and GCD variants (mean = 1.0, 1.2, 1.2 and 1.9 cm, respectively) (P = 0.037). HGD or CRC was more likely to be associated with CCD (n = 13; 93%), hypermucinous (n = 4; 57%), GCD (n = 4; 40%) and SSL-like (n = 3; 75%) variants than DPD (n = 6; 15%) and TSA-like dysplasia (n = 0; 0%) on follow-up (P < 0.001). Furthermore, the rate of aneuploidy was significantly higher in CCD (100%), hypermucinous (80%) and GCD (25%) variants than in DPD (12%), SSL-like dysplasia (0%) and TSA-like dysplasia (0%) (P < 0.001). CONCLUSIONS Non-conventional morphological patterns of dysplasia are not uncommon in IBD, detected in 33% of the patients. The higher frequencies of advanced neoplasia (HGD or CRC) and aneuploidy in non-conventional dysplasia, in particular CCD, hypermucinous and GCD variants, suggest that they may have a higher malignant potential than conventional dysplasia or sporadic tubular adenomas, and thus need complete removal and/or careful follow-up. Greater than 40% of non-conventional dysplasia presented as a flat/invisible lesion, suggesting that IBD patients may benefit from random biopsy sampling in addition to targeted biopsies. The majority of non-conventional subtypes appear to develop via the chromosomal instability pathway, whereas an alternative serrated pathway may be responsible for the development of at least a subset of SSL-like and TSA-like dysplasias.
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Affiliation(s)
- Hannah Lee
- Department of Pathology, University of California at San Francisco, San Francisco, CA, USA
| | | | - Aras N Mattis
- Department of Pathology, University of California at San Francisco, San Francisco, CA, USA
| | - Gregory Y Lauwers
- Department of Pathology, H. Lee Moffitt Cancer Center, Tampa, FL, USA
| | - Won-Tak Choi
- Department of Pathology, University of California at San Francisco, San Francisco, CA, USA
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6
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Oral epithelial reactive atypia/dysplasia: An underestimated true atypia/dysplasia? Med Hypotheses 2020; 144:110217. [PMID: 33254524 DOI: 10.1016/j.mehy.2020.110217] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/12/2020] [Accepted: 08/20/2020] [Indexed: 02/04/2023]
Abstract
Several clinical and histological features, usually associated with chronic inflammation could complexify the diagnosis of oral epithelial dysplasia (OED). These changes in response to inflammatory stimuli, or re-epithelialization events, are described as reactive epithelial atypia or dysplasia (REA/D). Within a REA/D scenario (for example in the edges of chronic traumatic ulcers), the diagnosis of OED could be challenging for oral pathologists due to an unfeasibility to accurate the true nature of that changes. Due to a reactive profile, REA/D suggests an evolutionary pattern of reversibility once the source that generates those changes is suppressed. However, there are no studies that address the nature or evolution of REA/D. In this context, how might reactive atypia diagnosis modify the therapeutic approach of an oral condition? Could the follow-up protocol of an oral lesion be modified with a diagnosis of REA/D? We hypothesized that there are epithelial changes, usually diagnosed as REA/D in a context of inflammation and chronic irritation, whose dysplastic potential is underestimated, or at least unknown. A biased pathophysiological conception could lead to erroneous or insufficient decisions, especially in the follow-up of these cases. The link between chronic inflammation and carcinogenesis is unquestionable. Oral mucosa is frequently exposed to inflammatory sources. Many conditions such as oral lichen planus, lichenoid lesions, and non-healing chronic traumatic ulcers were previously related to oral carcinogenesis. The diagnosis of REA/D within these entities is often underestimated. However, experimental models and epidemiological studies demonstrated that precursor lesions of some malignancies were initially diagnosed as reactive changes. Furthermore, a subset of oral reactive lesions associated with chronic mechanical irritation showed early carcinogenesis biomarkers. Nevertheless, further studies are needed to understand this issue. The controversial terminology Reactive Atypia vs True Atypia was also a debatable topic in other fields of medical evidence. Since some patients may not fit the strict criteria diagnosis given for each disease, we proposed the term: Oral Epithelial Atypia of Unknown Significance to characterize cellular and dysplastic changes possibly related to chronic inflammation but without a true certainty of its evolution. This term could encourage the clinician to perform a careful follow up of cases of REA/D and also readdress the focus of research regarding oral carcinogenesis. Finally, if all microscopic findings linked to inflammation are diagnosed as REA/D, may lead to underestimation of the potential of inflammation in the multifactorial context of oral carcinogenesis.
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Mahmoud R, Shah SC, Torres J, Castaneda D, Glass J, Elman J, Kumar A, Axelrad J, Harpaz N, Ullman T, Colombel JF, Oldenburg B, Itzkowitz SH. Association Between Indefinite Dysplasia and Advanced Neoplasia in Patients With Inflammatory Bowel Diseases Undergoing Surveillance. Clin Gastroenterol Hepatol 2020; 18:1518-1527.e3. [PMID: 31446183 PMCID: PMC7354098 DOI: 10.1016/j.cgh.2019.08.032] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 07/29/2019] [Accepted: 08/16/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Little is known about the clinical significance of indefinite dysplasia (IND) in patients with inflammatory bowel diseases (IBD) undergoing colonoscopic surveillance for colorectal neoplasia. METHODS We conducted a retrospective cohort analysis of 492 patients with colonic IBD for 8 or more years or concomitant primary sclerosing cholangitis, with no history of advanced colorectal neoplasia (high-grade dysplasia or colorectal cancer) or colectomy, undergoing colorectal neoplasia surveillance at a tertiary IBD referral center from 2001 through 2017. Subjects received consistent histopathologic grading of dysplasia. We collected data on time to development of (advanced) colorectal neoplasia or colectomy using Kaplan Meier methods. We identified factors independently associated with (advanced) colorectal neoplasia with multivariable Cox regression analysis. RESULTS After 2149 person-years of follow-up, 53 patients (10.8%) received a diagnosis of IND without prior or synchronous low-grade dysplasia (LGD). Compared to patients without dysplasia, patients with IND had a significantly higher risk of advanced colorectal neoplasia (adjusted hazard ratio, 6.85; 95% CI, 1.78-26.4) and colorectal neoplasia (adjusted hazard ratio, 3.25; 95% CI, 1.50-7.05), but not colectomy (P = .78). Compared to IND, LGD was associated with a significantly higher risk of advanced colorectal neoplasia (P = .05). Following a diagnosis of no dysplasia, IND only, or LGD, the incidence rates of advanced colorectal neoplasia were 0.4% per patient-year, 3.1% per patient-year, and 8.4% per patient-year, respectively. CONCLUSIONS In a retrospective analysis of patients with IBD undergoing colorectal neoplasia surveillance with consistent histopathologic grading of dysplasia, IND was independently associated with a significant increase in risk of advanced colorectal neoplasia. These findings require validation and if confirmed, a reappraisal of the colorectal neoplasia surveillance guidelines.
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Affiliation(s)
- Remi Mahmoud
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Shailja C. Shah
- Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Joana Torres
- Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Division of Gastroenterology, Surgical Department, Hospital Beatriz Ângelo, Loures, Portugal
| | - Daniel Castaneda
- Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jason Glass
- Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Internal Medicine, Division of Digestive and Liver Sciences, University of Texas Southwestern, Dallas, TX, USA
| | - Jordan Elman
- Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Akash Kumar
- Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jordan Axelrad
- Inflammatory Bowel Disease Center, NYU Langone Health, Division of Gastroenterology NYU School of Medicine, New York, NY, USA
| | - Noam Harpaz
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Thomas Ullman
- Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Division of Gastroenterology, Montefiore Hospital, New York, NY, USA
| | - Jean-Frédéric Colombel
- Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Bas Oldenburg
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Steven H. Itzkowitz
- Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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8
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Damas OM, Abreu MT. Digging Deeper to Increase Understanding of Endoscopic and Histopathology Risk Factors for Progression of Dysplasia in Patients With Inflammatory Bowel Diseases. Clin Gastroenterol Hepatol 2020; 18:1433-1435. [PMID: 31751772 DOI: 10.1016/j.cgh.2019.11.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 11/11/2019] [Indexed: 02/07/2023]
Affiliation(s)
- Oriana M Damas
- Division of Gastroenterology, Miller School of Medicine, University of Miami, Miami, Florida
| | - Maria T Abreu
- Division of Gastroenterology, Miller School of Medicine, University of Miami, Miami, Florida
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9
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Axelrad JE, Shah SC. Diagnosis and management of inflammatory bowel disease-associated neoplasia: considerations in the modern era. Therap Adv Gastroenterol 2020; 13:1756284820920779. [PMID: 32523622 PMCID: PMC7236570 DOI: 10.1177/1756284820920779] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 03/19/2020] [Indexed: 02/04/2023] Open
Abstract
Patients with inflammatory bowel disease (IBD) are at an increased risk of developing intestinal neoplasia-particularly colorectal neoplasia, including dysplasia and colorectal cancer (CRC)-as a primary consequence of chronic inflammation. While the current incidence of CRC in IBD is lower compared with prior decades, due, in large part, to more effective therapies and improved colonoscopic technologies, CRC still accounts for a significant proportion of IBD-related deaths. The focus of this review is on the pathogenesis; epidemiology, including disease- and patient-related risk factors; diagnosis; surveillance; and management of IBD-associated neoplasia.
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Affiliation(s)
- Jordan E. Axelrad
- Inflammatory Bowel Disease Center at NYU Langone Health, Division of Gastroenterology and Hepatology, NYU School of Medicine, New York, USA
| | - Shailja C. Shah
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, 10th floor Rm 1030-C, 2215 Garland Avenue, Medical Research Building IV, Nashville, TN 37203, USA
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10
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Lee H, Rabinovitch PS, Mattis AN, Kakar S, Choi WT. DNA flow cytometric analysis of paraffin-embedded tissue for the diagnosis of malignancy in bile duct biopsies. Hum Pathol 2020; 99:80-87. [PMID: 32272125 DOI: 10.1016/j.humpath.2020.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 04/01/2020] [Indexed: 01/22/2023]
Abstract
Differentiation of reactive versus neoplastic epithelial changes can be challenging in bile duct biopsies. The samples are often scant, distorted, and mixed with significant inflammation, ulceration, and/or debris. Histological confirmation of malignancy is often required before the initiation of surgical therapy, and an erroneous diagnosis of malignancy can lead to unnecessary clinical management. Aneuploidy assessment by DNA flow cytometry was performed on formalin-fixed paraffin-embedded (FFPE) tissue from 63 bile duct biopsies: 10 with a malignant diagnosis (7 with adenocarcinoma and 3 with at least high-grade dysplasia [HGD]); 3 with an atypical diagnosis showing rare atypical glands/cells, concerning but not definite for malignancy; 28 likely reactive biopsies with acute/chronic inflammation, ulceration, and/or mild nuclear atypia; and 22 additional benign biopsies without significant inflammation, ulceration, or nuclear atypia. Aneuploidy was detected in 7 (70%) of the 10 biopsies with definite neoplasia (5 of 7 adenocarcinoma cases and 2 of 3 at least HGD cases), all 3 (100%) atypical biopsies, and none of the 50 benign biopsies. All 3 atypical cases with aneuploidy were subsequently found to have adenocarcinoma (n = 2) or HGD (n = 1). Among the 2 cases of at least HGD with aneuploidy, 1 case developed adenocarcinoma, but no follow-up information was available in the other case. The remaining 1 case of at least HGD, despite having normal DNA content, was found to have adenocarcinoma on follow-up. None of the 50 benign cases (further supported by normal DNA content) developed adenocarcinoma within a mean follow-up time of 37 months (range: 0-282 months). The estimated sensitivity of aneuploidy as a diagnostic marker of malignancy (adenocarcinoma and HGD) was 70%, with the specificity of 100%, positive predictive value of 100%, and negative predictive value of 94%. In conclusion, DNA flow cytometry using FFPE tissue from bile duct biopsies demonstrates a high rate of aneuploidy (70%) in malignant cases and normal DNA content in all benign biopsies. Although the sample size is small, the results indicate that this assay can be potentially useful in challenging atypical cases, where morphological evaluation is limited by scarcity of atypical glands/cells, inflammation, and/or ulceration.
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Affiliation(s)
- Hannah Lee
- University of California at San Francisco, Department of Pathology, San Francisco, CA, 94143, USA
| | | | - Aras N Mattis
- University of California at San Francisco, Department of Pathology, San Francisco, CA, 94143, USA; University of California at San Francisco, Liver Center, San Francisco, CA, 94143, USA
| | - Sanjay Kakar
- University of California at San Francisco, Department of Pathology, San Francisco, CA, 94143, USA
| | - Won-Tak Choi
- University of California at San Francisco, Department of Pathology, San Francisco, CA, 94143, USA.
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Diagnosis, risk stratification, and management of ampullary dysplasia by DNA flow cytometric analysis of paraffin-embedded tissue. Mod Pathol 2019; 32:1291-1302. [PMID: 30976103 PMCID: PMC8549479 DOI: 10.1038/s41379-019-0272-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/27/2019] [Accepted: 03/06/2019] [Indexed: 12/20/2022]
Abstract
The limited accuracy of endoscopic biopsy in detecting high-grade dysplasia or adenocarcinoma within ampullary adenoma or dysplasia has been reported. The natural history of ampullary dysplasia is also unclear, and there are no established guidelines to determine which patients with ampullary dysplasia require resection versus surveillance endoscopy. DNA flow cytometry was performed on 47 ampullary biopsies with low-grade dysplasia, 18 high-grade dysplasia, and 23 negative for dysplasia, as well as 11 cases of ampullary adenocarcinoma. Abnormal DNA content (aneuploidy or elevated 4N fraction > 6%) was identified in 9 (82%) of adenocarcinoma, 13 (72%) of high-grade dysplasia, 7 (15%) of low-grade dysplasia, and none (0%) of non-dysplastic mucosa. One-, 2-, and 7-year detection rates of high-grade dysplasia or adenocarcinoma in low-grade dysplasia patients with abnormal DNA content were 57%, 86%, and 88%, respectively, whereas low-grade dysplasia patients in the setting of normal DNA content had 1-, 2-, and 7-year detection rates of 10%, 10%, and 10%, respectively. The univariate and multivariate hazard ratios (HRs) for subsequent detection of high-grade dysplasia or adenocarcinoma in low-grade dysplasia patients with DNA content abnormality were 16.8 (p = <0.01) and 9.8 (p = <0.01), respectively. Among the 13 high-grade dysplasia patients with DNA content abnormality, 5 patients (38%) were subsequently found to have adenocarcinoma within a mean follow-up time of 3 months, whereas only 1 (20%) of the remaining 5 patients in the setting of normal DNA content developed adenocarcinoma in a month (HR = 2.6, p = 0.39). The overall 1- and 2-year detection rates of adenocarcinoma in all high-grade dysplasia patients (regardless of flow cytometric results) were 34% (95% confidence interval = 16-63%) and 47% (95% confidence interval = 23-79%), respectively. In conclusion, the majority of low-grade dysplasia patients (86%) in the setting of abnormal DNA content developed high-grade dysplasia or adenocarcinoma within 2 years and thus may benefit from resection, whereas those with normal DNA content may be followed with surveillance endoscopy. The presence of DNA content abnormality can also confirm a morphologic suspicion of high-grade dysplasia, which should be managed with resection, as nearly 50% of the high-grade dysplasia patients were found to have adenocarcinoma within 2 years.
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Wen KW, Umetsu SE, Goldblum JR, Gill RM, Kim GE, Joseph NM, Rabinovitch PS, Kakar S, Lauwers GY, Choi W. DNA flow cytometric and interobserver study of crypt cell atypia in inflammatory bowel disease. Histopathology 2019; 75:578-588. [DOI: 10.1111/his.13923] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 05/17/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Kwun Wah Wen
- Department of Pathology University of California at San Francisco San Francisco CAUSA
| | - Sarah E Umetsu
- Department of Pathology University of California at San Francisco San Francisco CAUSA
| | | | - Ryan M Gill
- Department of Pathology University of California at San Francisco San Francisco CAUSA
| | - Grace E Kim
- Department of Pathology University of California at San Francisco San Francisco CAUSA
| | - Nancy M Joseph
- Department of Pathology University of California at San Francisco San Francisco CAUSA
| | | | - Sanjay Kakar
- Department of Pathology University of California at San Francisco San Francisco CAUSA
| | - Gregory Y Lauwers
- Department of Pathology H. Lee Moffitt Cancer Center and Research Institute Tampa FL USA
| | - Won‐Tak Choi
- Department of Pathology University of California at San Francisco San Francisco CAUSA
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