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Wang J, Li B, Luo M, Huang J, Zhang K, Zheng S, Zhang S, Zhou J. Progression from ductal carcinoma in situ to invasive breast cancer: molecular features and clinical significance. Signal Transduct Target Ther 2024; 9:83. [PMID: 38570490 PMCID: PMC10991592 DOI: 10.1038/s41392-024-01779-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 02/14/2024] [Accepted: 02/26/2024] [Indexed: 04/05/2024] Open
Abstract
Ductal carcinoma in situ (DCIS) represents pre-invasive breast carcinoma. In untreated cases, 25-60% DCIS progress to invasive ductal carcinoma (IDC). The challenge lies in distinguishing between non-progressive and progressive DCIS, often resulting in over- or under-treatment in many cases. With increasing screen-detected DCIS in these years, the nature of DCIS has aroused worldwide attention. A deeper understanding of the biological nature of DCIS and the molecular journey of the DCIS-IDC transition is crucial for more effective clinical management. Here, we reviewed the key signaling pathways in breast cancer that may contribute to DCIS initiation and progression. We also explored the molecular features of DCIS and IDC, shedding light on the progression of DCIS through both inherent changes within tumor cells and alterations in the tumor microenvironment. In addition, valuable research tools utilized in studying DCIS including preclinical models and newer advanced technologies such as single-cell sequencing, spatial transcriptomics and artificial intelligence, have been systematically summarized. Further, we thoroughly discussed the clinical advancements in DCIS and IDC, including prognostic biomarkers and clinical managements, with the aim of facilitating more personalized treatment strategies in the future. Research on DCIS has already yielded significant insights into breast carcinogenesis and will continue to pave the way for practical clinical applications.
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Affiliation(s)
- Jing Wang
- The Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Breast Surgery and Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, China
| | - Baizhou Li
- Department of Pathology, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, China
| | - Meng Luo
- The Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, China
- Department of Plastic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jia Huang
- The Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, China
| | - Kun Zhang
- Department of Breast Surgery and Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shu Zheng
- The Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, China
| | - Suzhan Zhang
- The Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, China.
| | - Jiaojiao Zhou
- The Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Department of Breast Surgery and Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, China.
- Cancer Center, Zhejiang University, Hangzhou, China.
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Casasent AK, Almekinders MM, Mulder C, Bhattacharjee P, Collyar D, Thompson AM, Jonkers J, Lips EH, van Rheenen J, Hwang ES, Nik-Zainal S, Navin NE, Wesseling J. Learning to distinguish progressive and non-progressive ductal carcinoma in situ. Nat Rev Cancer 2022; 22:663-678. [PMID: 36261705 DOI: 10.1038/s41568-022-00512-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/07/2022] [Indexed: 02/07/2023]
Abstract
Ductal carcinoma in situ (DCIS) is a non-invasive breast neoplasia that accounts for 25% of all screen-detected breast cancers diagnosed annually. Neoplastic cells in DCIS are confined to the ductal system of the breast, although they can escape and progress to invasive breast cancer in a subset of patients. A key concern of DCIS is overtreatment, as most patients screened for DCIS and in whom DCIS is diagnosed will not go on to exhibit symptoms or die of breast cancer, even if left untreated. However, differentiating low-risk, indolent DCIS from potentially progressive DCIS remains challenging. In this Review, we summarize our current knowledge of DCIS and explore open questions about the basic biology of DCIS, including those regarding how genomic events in neoplastic cells and the surrounding microenvironment contribute to the progression of DCIS to invasive breast cancer. Further, we discuss what information will be needed to prevent overtreatment of indolent DCIS lesions without compromising adequate treatment for high-risk patients.
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Affiliation(s)
- Anna K Casasent
- Department of Genetics, MD Anderson Cancer Center, Houston, TX, USA
| | | | - Charlotta Mulder
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | | | | | - Jos Jonkers
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Esther H Lips
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Jacco van Rheenen
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Serena Nik-Zainal
- Department of Medical Genetics, University of Cambridge, Cambridge, UK
| | - Nicholas E Navin
- Department of Genetics, MD Anderson Cancer Center, Houston, TX, USA
- Department of Bioinformatics, MD Anderson Cancer Center, Houston, TX, USA
| | - Jelle Wesseling
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands.
- Department of Pathology, Leiden University Medical Center, Leiden, Netherlands.
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3
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Yang L, Shen M, Qiu Y, Tang T, Bu H. Molecular subtyping reveals uniqueness of prognosis in breast ductal carcinoma in situ patients with lumpectomy. Breast 2022; 64:1-6. [PMID: 35462343 PMCID: PMC9039875 DOI: 10.1016/j.breast.2022.03.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/20/2022] [Accepted: 03/29/2022] [Indexed: 12/05/2022] Open
Abstract
Background We aimed to analyse the discrepancy in clinical features and prognosis between molecular subtypes in primary ductal carcinoma in situ (DCIS) patients with lumpectomy. Methods Primary DCIS patients were identified from the Surveillance, Epidemiology, and End Results registries database from 2010 to 2017. Based on immunohistochemistry markers of hormone receptor (HR) and human epidermal growth factor receptor-2 (HER2), enrolled DCIS cases were divided into four molecular subtypes, HR-HER2-, HR-HER2+, HR + HER2+, and HR + HER2-. Clinical features and prognosis were compared between molecular subtypes. Radiotherapy (RT) effects on prognosis were also analysed in each molecular subtype. Results A total of 5,628 DCIS cases were retrospectively enrolled in this study. HR-HER2-, HR-HER2+, HR+HER2+, and HR+HER2- are 299 (5.3%), 498 (8.8%), 1,086 (19.3%), and 3,745 (66.5%), respectively. HR + HER2- cases have smaller tumor size (72.6%, P < 0.001) and lower grade (23.5%, P < 0.001). Comedo necrosis is more frequent in HR-HER2- (24.4%, P < 0.001) and HR-HER2+ DCIS cases (24.3%, P < 0.001). In univariate analyses, HR-HER2+ cases have significantly higher ipsilateral breast event (IBE) recurrence than HR+HER2- cases (P = 0.010). HR-HER2- cases show higher disease-specific mortality than HR+HER2+ cases (P = 0.021). In high-risk DCIS cases, RT reduces the absolute 5-year IBE incidence by 1.3%, 0.7%, 1.9%, and 2.6%, respectively in HR-HER2-, HR-HER2+, HR+HER2+, and HR+HER2- cases, respectively. Conclusion In this population-based study, DCIS cases have diverse clinical and prognostic features for different molecular subtypes. Adjusting treatment strategies according to DCIS molecular subtypes is worth advancing. HR-HER2+ DCIS shows the highest proportion of high-risk cases. HR + HER2- DCIS shows lowest proportion of high-risk cases. HR-HER2+ DCIS shows high risk of IBE recurrence. The DSmortality has no differences among four molecular subtypes. RT lowered the probability of IBE incidence in high-risk cases for each molecular subtype of DCIS.
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Agahozo MC, van Bockstal M, Westenend PJ, Galant C, Lambein K, Reisenbichler E, Sinke R, Wong S, van Deurzen CHM. Stromal Changes are Associated with High P4HA2 Expression in Ductal Carcinoma in Situ of the Breast. J Mammary Gland Biol Neoplasia 2021; 26:367-375. [PMID: 35076865 PMCID: PMC8858280 DOI: 10.1007/s10911-021-09504-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/25/2021] [Indexed: 11/25/2022] Open
Abstract
Ductal carcinoma in situ (DCIS) of the breast is able to induce stromal changes, which likely reflect the crosstalk between DCIS and its microenvironment. These changes harbor prognostic information, although the interobserver variability of scoring stromal changes is moderate. A more robust evaluation of the DCIS-associated stroma is therefore needed. The aim of this study was to characterize P4HA2 expression, which is involved in collagen biosynthesis, in DCIS and to assess whether P4HA2 expression enables a more robust evaluation of the DCIS-associated stroma compared to histomorphology. This study included 410 patients with DCIS. Stromal changes were scored on hematoxylin/eosin-stained whole slides. P4HA2 expression in DCIS-associated stroma was assessed by whole slide immunohistochemistry. One hundred DCIS lesions were evaluated by seven pathologists to study the interobserver variability in the assessment of stromal changes and stromal P4HA2 expression. High P4HA2 expression in stromal fibroblasts was present in 14.1% of the patients. High P4HA2 expression was associated with the presence of periductal stromal changes (P = 0.004). The interobserver variability was similar for the assessment of stromal changes and the percentage of P4HA2-positive fibroblasts. Although we demonstrated a significant association between high P4HA2 expression in fibroblasts and the morphological presence of stromal changes, it seems unlikely that P4HA2 expression can be used as an alternative for the histopathological evaluation of the DCIS-associated stroma.
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Affiliation(s)
| | - Mieke van Bockstal
- Faculty of Medicine and Dentistry, Université Catholique de Louvain, Ottignies-Louvain-la-Neuve, Belgium
| | | | - Christine Galant
- Faculty of Medicine and Dentistry, Université Catholique de Louvain, Ottignies-Louvain-la-Neuve, Belgium
| | - Kathleen Lambein
- Department of Pathology, AZ Sint-Lucas Hospital Ghent, Ghent, Belgium
| | | | | | - Serena Wong
- Department of Pathology, Yale School of Medicine, New Haven, USA
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Thorat MA, Levey PM, Jones JL, Pinder SE, Bundred NJ, Fentiman IS, Cuzick J. Prognostic and Predictive Value of HER2 Expression in Ductal Carcinoma In Situ: Results from the UK/ANZ DCIS Randomized Trial. Clin Cancer Res 2021; 27:5317-5324. [PMID: 34380636 PMCID: PMC7612534 DOI: 10.1158/1078-0432.ccr-21-1239] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/23/2021] [Accepted: 07/30/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE HER2 is overexpressed more frequently in ductal carcinoma in situ (DCIS) than in invasive breast cancer but its prognostic significance and predictive role for radiotherapy has not been clearly established. We investigated the prognostic and predictive value of HER2 overexpression in DCIS. EXPERIMENTAL DESIGN HER2 expression was evaluated by IHC using the HercepTest™ in samples from UK/ANZ DCIS trial participants (n = 755) with IHC 3+ expression categorized as HER2 positive for primary analyses. Sensitivity analyses included HER2 categorization as negative (IHC 0,1+), equivocal (IHC 2+), and positive (IHC 3+) and analyses restricted to a nested case-control component where 181 cases (with recurrence) were matched to 362 controls by treatment arm and age. RESULTS Two-hundred and forty-five (34.4%) of evaluable 713 samples [181 ipsilateral breast events (IBE)] were HER2 positive. HER2 overexpression was associated with significantly increased risk of IBE [HR = 2.29; 95% confidence interval (95% CI), 1.64-3.14; P < 0.0001] and in situ IBE (DCIS-IBE; HR = 2.90; 95% CI, 1.91-4.40; P < 0.0001), but not of invasive IBE (I-IBE; HR = 1.40; 95% CI, 0.81-2.42; P = 0.23; Pheterogeneity = 0.04). Inclusion of HER2 significantly improved [Δχ2 (1d.f.) 12.25; P = 0.0005] a prognostic model of clinicopathological and treatment variables, HER2 being an independent predictor of IBE (multivariate HR = 1.91; 95% CI, 1.33-2.76; P = 0.0004). Radiotherapy benefit in preventing DCIS-IBE was significantly greater (Pheterogeneity = 0.04) in HER2-positive DCIS (HR = 0.16; 95% CI, 0.07-0.41) compared with HER2-negative DCIS (HR = 0.58; 95% CI, 0.28-1.19). CONCLUSIONS HER2 overexpression is associated with significantly increased risk of in situ recurrence and is also predictive of radiotherapy benefit, with greater reductions in in situ but not invasive recurrences in HER2-positive DCIS.
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Affiliation(s)
- Mangesh A. Thorat
- Centre for Cancer Prevention, Wolfson Institute of Preventive Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
- School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
- Breast Services, Guy's Hospital, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Pauline M. Levey
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - J. Louise Jones
- Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Sarah E. Pinder
- School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
- Department of Pathology, Guy's Hospital, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Nigel J. Bundred
- Manchester University NHS Foundation Trust, Wythenshawe, Manchester, United Kingdom
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Ian S. Fentiman
- School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | - Jack Cuzick
- Centre for Cancer Prevention, Wolfson Institute of Preventive Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
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Agahozo MC, Smid M, van Marion R, Hammerl D, van den Bosch TPP, Timmermans MAM, Heijerman CJ, Westenend PJ, Debets R, Martens JWM, van Deurzen CHM. Transcriptomic Properties of HER2+ Ductal Carcinoma In Situ of the Breast Associate with Absence of Immune Cells. BIOLOGY 2021; 10:768. [PMID: 34440000 PMCID: PMC8389698 DOI: 10.3390/biology10080768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 11/16/2022]
Abstract
The identification of transcriptomic alterations of HER2+ ductal carcinoma in situ (DCIS) that are associated with the density of tumor-infiltrating lymphocytes (TILs) could contribute to optimizing choices regarding the potential benefit of immune therapy. We compared the gene expression profile of TIL-poor HER2+ DCIS to that of TIL-rich HER2+ DCIS. Tumor cells from 11 TIL-rich and 12 TIL-poor DCIS cases were micro-dissected for RNA isolation. The Ion AmpliSeq Transcriptome Human Gene Expression Kit was used for RNA sequencing. After normalization, a Mann-Whitney rank sum test was used to analyze differentially expressed genes between TIL-poor and TIL-rich HER2+ DCIS. Whole tissue sections were immunostained for validation of protein expression. We identified a 29-gene expression profile that differentiated TIL-rich from TIL-poor HER2+ DCIS. These genes included CCND3, DUSP10 and RAP1GAP, which were previously described in breast cancer and cancer immunity and were more highly expressed in TIL-rich DCIS. Using immunohistochemistry, we found lower protein expression in TIL-rich DCIS. This suggests regulation of protein expression at the posttranslational level. We identified a gene expression profile of HER2+ DCIS cells that was associated with the density of TILs. This classifier may guide towards more rationalized choices regarding immune-mediated therapy in HER2+ DCIS, such as targeted vaccine therapy.
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Affiliation(s)
- Marie Colombe Agahozo
- Department of Pathology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.C.A.); (R.v.M.); (T.P.P.v.d.B.)
| | - Marcel Smid
- Department of Medical Oncology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.S.); (D.H.); (M.A.M.T.); (C.J.H.); (R.D.); (J.W.M.M.)
| | - Ronald van Marion
- Department of Pathology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.C.A.); (R.v.M.); (T.P.P.v.d.B.)
| | - Dora Hammerl
- Department of Medical Oncology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.S.); (D.H.); (M.A.M.T.); (C.J.H.); (R.D.); (J.W.M.M.)
| | - Thierry P. P. van den Bosch
- Department of Pathology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.C.A.); (R.v.M.); (T.P.P.v.d.B.)
| | - Mieke A. M. Timmermans
- Department of Medical Oncology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.S.); (D.H.); (M.A.M.T.); (C.J.H.); (R.D.); (J.W.M.M.)
| | - Chayenne J. Heijerman
- Department of Medical Oncology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.S.); (D.H.); (M.A.M.T.); (C.J.H.); (R.D.); (J.W.M.M.)
| | | | - Reno Debets
- Department of Medical Oncology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.S.); (D.H.); (M.A.M.T.); (C.J.H.); (R.D.); (J.W.M.M.)
| | - John W. M. Martens
- Department of Medical Oncology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.S.); (D.H.); (M.A.M.T.); (C.J.H.); (R.D.); (J.W.M.M.)
| | - Carolien H. M. van Deurzen
- Department of Pathology, Erasmus MC Cancer Institute, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands; (M.C.A.); (R.v.M.); (T.P.P.v.d.B.)
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Ieni A, Cardia R, Pizzimenti C, Zeppa P, Tuccari G. HER2 Heterogeneity in Personalized Therapy of Gastro-Oesophageal Malignancies: An Overview by Different Methodologies. J Pers Med 2020; 10:jpm10010010. [PMID: 32098203 PMCID: PMC7151629 DOI: 10.3390/jpm10010010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/06/2020] [Accepted: 02/12/2020] [Indexed: 12/15/2022] Open
Abstract
Human epidermal growth factor receptor-2 (HER2)-expression gastro-oesophageal adenocarcinomas (GEA) gained interest as an important target for therapy with trastuzumab. In the current review, we focused the current knowledge on HER2 status in dysplastic and neoplastic gastric conditions, analyzing the methodological procedures to identify HER2 expression/amplification, as well as the proposed scoring recommendations. One of the most relevant questions to evaluate the useful impact of HER2 status on therapeutic choice in GEAs is represented by the significant heterogeneity of HER2 protein and gene expression that may affect the targeted treatment selection. Future development of biotechnology will continue to evolve in order to offer more powerful detection systems for the assessment of HER2 status. Finally, liquid biopsy as well as mutation/amplification of several additional genes may furnish an early detection of secondary HER2 resistance mechanisms in GEAs with a better monitoring of the treatment response.
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Affiliation(s)
- Antonio Ieni
- Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, Section of Pathology, University of Messina, 98125 Messina, Italy; (R.C.); (C.P.); (G.T.)
- Correspondence: ; Tel.: +39-90-221-2536; Fax: +39-90-292-8150
| | - Roberta Cardia
- Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, Section of Pathology, University of Messina, 98125 Messina, Italy; (R.C.); (C.P.); (G.T.)
| | - Cristina Pizzimenti
- Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, Section of Pathology, University of Messina, 98125 Messina, Italy; (R.C.); (C.P.); (G.T.)
| | - Pio Zeppa
- Department of Medicine and Surgery, University of Salerno, 84131 Salerno, Italy;
| | - Giovanni Tuccari
- Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, Section of Pathology, University of Messina, 98125 Messina, Italy; (R.C.); (C.P.); (G.T.)
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8
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Albrecht T, Rausch M, Rössler S, Albrecht M, Braun JD, Geissler V, Mehrabi A, Vogel MN, Pathil-Warth A, Mechtersheimer G, Renner M, Rupp C, Weiss KH, Busch E, Köhler B, Springfeld C, Schirmacher P, Goeppert B. HER2 gene (ERBB2) amplification is a rare event in non-liver-fluke associated cholangiocarcinogenesis. BMC Cancer 2019; 19:1191. [PMID: 31805897 PMCID: PMC6896712 DOI: 10.1186/s12885-019-6320-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 10/31/2019] [Indexed: 02/07/2023] Open
Abstract
Background Cholangiocarcinoma is a rapidly fatal cancer entity with a median survival of less than one year. In contrast to many other malignancies, no substantial therapeutic breakthrough has been made in the past few decades, thereby limiting the treatment to cytotoxic chemotherapy with little beneficial effect for most patients. Targeted therapy tailored to the individual has shown substantial success in the recent past as a promising avenue for cancer therapy. Methods In this study, we determined the frequency of amplification of the HER2 gene in a comprehensive and well-characterized European cholangiocarcinoma cohort encompassing 436 patients including intrahepatic (n = 155), proximal (n = 155) and distal (n = 126) cholangiocarcinoma by strict application of a combined immunohistochemical and in situ hybridization algorithm following the current guidelines for HER2 assessment in gastric cancer. Results We identified a proportion of 1.4% (n = 6) patients that demonstrated HER2 gene amplification, with the highest rate among the distal cholangiocarcinoma patients (2.4%). None of the patients with equivocal (2+) immunohistochemical staining results exhibited gene amplification molecularly. In four of the five patients with HER2 positivity, gene amplification was already present in concomitantly tested high-grade biliary intraepithelial neoplasia (80%). HER2 gene amplification was not significantly associated with other clinical parameters, including survival. Conclusions This study identifies HER2 gene amplification as a rare event in cholangiocarcinoma of the Western population, occurring already in high-grade BilIN in a subset of patients. Furthermore, we provide a robust testing algorithm that may be used prior to therapy administration in future clinical trials evaluating the role of HER2 as a predictive marker in cholangiocarcinoma.
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Affiliation(s)
- Thomas Albrecht
- Institute of Pathology, University of Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany.,Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany
| | - Melina Rausch
- Institute of Pathology, University of Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany
| | - Stephanie Rössler
- Institute of Pathology, University of Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany.,Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany
| | - Michael Albrecht
- European Center for Angioscience (ECAS), Medical Faculty of Mannheim, Heidelberg University, Mannheim, Germany
| | - Jana Dorothea Braun
- Department of Dermatology, University Medical Centre Mannheim, Mannheim, Germany
| | - Veronika Geissler
- Institute of Pathology, University of Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany
| | - Arianeb Mehrabi
- Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany.,Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Monika Nadja Vogel
- Diagnostic and Interventional Radiology, Thoraxklinik at University Hospital Heidelberg, Heidelberg, Germany
| | - Anita Pathil-Warth
- Department of Internal Medicine IV, Gastroenterology and Hepatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Gunhild Mechtersheimer
- Institute of Pathology, University of Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany
| | - Marcus Renner
- Institute of Pathology, University of Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany
| | - Christian Rupp
- Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany.,Department of Internal Medicine IV, Gastroenterology and Hepatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Karl Heinz Weiss
- Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany.,Department of Internal Medicine IV, Gastroenterology and Hepatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Elena Busch
- Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany.,Department of Medical Oncology, University Hospital Heidelberg, National Center for Tumor Diseases, Heidelberg, Germany
| | - Bruno Köhler
- Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany.,Department of Medical Oncology, University Hospital Heidelberg, National Center for Tumor Diseases, Heidelberg, Germany
| | - Christoph Springfeld
- Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany.,Department of Medical Oncology, University Hospital Heidelberg, National Center for Tumor Diseases, Heidelberg, Germany
| | - Peter Schirmacher
- Institute of Pathology, University of Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany.,Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany
| | - Benjamin Goeppert
- Institute of Pathology, University of Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany. .,Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany.
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Estrogen Receptor-positive Ductal Carcinoma In Situ Frequently Overexpresses HER2 Protein Without Gene Amplification. Am J Surg Pathol 2019; 43:1221-1228. [DOI: 10.1097/pas.0000000000001300] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Van Bockstal MR, Agahozo MC, Koppert LB, van Deurzen CHM. A retrospective alternative for active surveillance trials for ductal carcinoma in situ of the breast. Int J Cancer 2019; 146:1189-1197. [PMID: 31018242 PMCID: PMC7004157 DOI: 10.1002/ijc.32362] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/25/2019] [Accepted: 04/17/2019] [Indexed: 12/12/2022]
Abstract
Ductal carcinoma in situ (DCIS) of the breast is a nonobligate precursor of invasive breast cancer, accounting for 20 % of screen-detected breast cancers. Little is known about the natural progression of DCIS because most patients undergo surgery upon diagnosis. Many DCIS patients are likely being overtreated, as it is believed that only around 50 % of DCIS will progress to invasive carcinoma. Robust prognostic markers for progression to invasive carcinoma are lacking. In the past, studies have investigated women who developed a recurrence after breast-conserving surgery (BCS) and compared them with those who did not. However, where there is no recurrence, the patient has probably been adequately treated. The present narrative review advocates a new research strategy, wherein only those patients with a recurrence are studied. Approximately half of the recurrences are invasive cancers, and half are DCIS. So-called "recurrences" are probably most often the result of residual disease. The new approach allows us to ask: why did some residual DCIS evolve to invasive cancers and others not? This novel strategy compares the group of patients that developed in situ recurrence with the group of patients that developed invasive recurrence after BCS. The differences between these groups could then be used to develop a robust risk stratification tool. This tool should estimate the risk of synchronous and metachronous invasive carcinoma when DCIS is diagnosed in a biopsy. Identification of DCIS patients at low risk for developing invasive carcinoma will individualize future therapy and prevent overtreatment.
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Affiliation(s)
- Mieke R Van Bockstal
- Department of Pathology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Marie C Agahozo
- Department of Pathology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Linetta B Koppert
- Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
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11
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Sanati S. Morphologic and Molecular Features of Breast Ductal Carcinoma in Situ. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:946-955. [DOI: 10.1016/j.ajpath.2018.07.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/05/2018] [Accepted: 07/13/2018] [Indexed: 12/12/2022]
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12
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Sinha VC, Piwnica-Worms H. Intratumoral Heterogeneity in Ductal Carcinoma In Situ: Chaos and Consequence. J Mammary Gland Biol Neoplasia 2018; 23:191-205. [PMID: 30194658 PMCID: PMC6934090 DOI: 10.1007/s10911-018-9410-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 08/30/2018] [Indexed: 02/06/2023] Open
Abstract
Ductal carcinoma in situ (DCIS) is a non-invasive proliferative growth in the breast that serves as a non-obligate precursor to invasive ductal carcinoma. The widespread adoption of screening mammography has led to a steep increase in the detection of DCIS, which now comprises approximately 20% of new breast cancer diagnoses in the United States. Interestingly, the intratumoral heterogeneity (ITH) that has been observed in invasive breast cancers may have been established early in tumorigenesis, given the vast and varied ITH that has been detected in DCIS. This review will discuss the intratumoral heterogeneity of DCIS, focusing on the phenotypic and genomic heterogeneity of tumor cells, as well as the compositional heterogeneity of the tumor microenvironment. In addition, we will assess the spatial heterogeneity that is now being appreciated in these lesions, and summarize new approaches to evaluate heterogeneity of tumor and stromal cells in the context of their spatial organization. Importantly, we will discuss how a growing understanding of ITH has led to a more holistic appreciation of the complex biology of DCIS, specifically its evolution and natural history. Finally, we will consider ways in which our knowledge of DCIS ITH might be translated in the future to guide clinical care for DCIS patients.
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Affiliation(s)
- Vidya C Sinha
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, 6565 MD Anderson Blvd, Houston, TX, 77030, USA
| | - Helen Piwnica-Worms
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, 6565 MD Anderson Blvd, Houston, TX, 77030, USA.
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13
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Van Bockstal M, Lambein K, Smeets A, Slembrouck L, Neven P, Nevelsteen I, Weltens C, Van Limbergen E, Christiaens MR, Van Ongeval C, Wildiers H, Libbrecht L, Floris G. Stromal characteristics are adequate prognosticators for recurrence risk in ductal carcinoma in situ of the breast. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2018; 45:550-559. [PMID: 30454971 DOI: 10.1016/j.ejso.2018.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/02/2018] [Accepted: 11/06/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND Ductal carcinoma in situ (DCIS) of the breast constitutes a heterogeneous group of non-obligate precursors for invasive breast cancer. To date, adequate risk stratification is lacking, which is presumed to result in overtreatment. We previously identified myxoid stromal architecture as a potential prognosticator for loco-regional recurrence. In the present study, we investigated the prognostic potential of stromal characteristics. METHODS Hematoxylin and eosin stained slides from 211 DCIS patients were reviewed. The following histological features were dichotomously assessed: nuclear grade, DCIS architecture, presence of necrosis, intraductal calcifications, stromal inflammation and myxoid stromal architecture. Loco-regional recurrences constituted the primary endpoint. RESULTS Cox regression analysis showed that high nuclear grade, myxoid stromal architecture and moderate to extensive stromal inflammation were significantly associated with decreased recurrence-free survival, independent of radiotherapy. Based on these features, a combined risk score (CRS) was calculated, ranging from zero to three. A high CRS of three was associated with significantly shorter recurrence-free survival. Nineteen patients had a CRS of three, of which three relapsed (15.7%), whereas only one out of 113 patients with a CRS of zero relapsed (0.9%). CONCLUSIONS We were able to validate our previously reported findings regarding the prognostic potential of myxoid periductal stroma in an independent DCIS patient cohort. A CRS based on nuclear grade, myxoid stromal architecture and stromal inflammation might facilitate discrimination of low risk from high risk patients. Consequently, the CRS may tailor adjuvant therapy. Future research should investigate whether radiotherapy can be safely omitted in patients with a low CRS.
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Affiliation(s)
- Mieke Van Bockstal
- Department of Pathology, Erasmus MC, University Medical Center Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, the Netherlands; Laboratory of Experimental Cancer Research, Department of Radiation Oncology and Experimental Cancer Research, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium.
| | - Kathleen Lambein
- Department of Pathology, AZ St Lucas Hospital Ghent, Groenebriel 1, 9000 Ghent, Belgium; Department of Surgical Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Ann Smeets
- Department of Surgical Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Laurence Slembrouck
- Department of Oncology, KUL University of Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Patrick Neven
- Department of Oncology, KUL University of Leuven, Herestraat 49, 3000 Leuven, Belgium; Department of Gynecology and Obstetrics, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Ines Nevelsteen
- Department of Surgical Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Caroline Weltens
- Department of Radiotherapy Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Erik Van Limbergen
- Department of Radiotherapy Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Marie-Rose Christiaens
- Department of Surgical Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Chantal Van Ongeval
- Department of Radiology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Hans Wildiers
- Department of Medical Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Louis Libbrecht
- Department of Pathology, University Clinics St Luc, Hippokrateslaan 10, 1200 Sint-Lambrechts-Woluwe, Belgium
| | - Giuseppe Floris
- Department of Pathology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium; Department of Imaging and Pathology, Laboratory of Translational Cell & Tissue Research, KUL University of Leuven, Herestraat 49, 3000 Leuven, Belgium
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14
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Van Bockstal M, Baldewijns M, Colpaert C, Dano H, Floris G, Galant C, Lambein K, Peeters D, Van Renterghem S, Van Rompuy AS, Verbeke S, Verschuere S, Van Dorpe J. Dichotomous histopathological assessment of ductal carcinoma in situ of the breast results in substantial interobserver concordance. Histopathology 2018; 73:923-932. [PMID: 30168167 DOI: 10.1111/his.13741] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 08/20/2018] [Indexed: 12/28/2022]
Abstract
AIMS Robust prognostic markers for ductal carcinoma in situ (DCIS) of the breast require high reproducibility and thus low interobserver variability. The aim of this study was to compare interobserver variability among 13 pathologists, in order to enable the identification of robust histopathological characteristics. METHODS AND RESULTS One representative haematoxylin and eosin-stained slide was selected for 153 DCIS cases. All pathologists independently assessed nuclear grade, intraductal calcifications, necrosis, solid growth, stromal changes, stromal inflammation, and apocrine differentiation. All characteristics were assessed categorically. Krippendorff's alpha was calculated to assess overall interobserver concordance. Cohen's kappa was calculated for every observer duo to further explore interobserver variability. The highest concordance was observed for necrosis, calcifications, and stromal inflammation. Assessment of solid growth, nuclear grade and stromal changes resulted in lower concordance. Poor concordance was observed for apocrine differentiation. Kappa values for each observer duo identified the 'ideal' cut-off for dichotomisation of multicategory variables. For instance, concordance was higher for 'non-high versus high' nuclear grade than for 'low versus non-low' nuclear grade. 'Absent/mild' versus 'moderate/extensive' stromal inflammation resulted in substantially higher concordance than other dichotomous cut-offs. CONCLUSIONS Dichotomous assessment of the histopathological features of DCIS resulted in moderate to substantial agreement among pathologists. Future studies on prognostic markers in DCIS should take into account this degree of interobserver variability to define cut-offs for categorically assessed histopathological features, as reproducibility is paramount for robust prognostic markers in daily clinical practice. A new prognostic index for DCIS might be considered, based on two-tier grading of histopathological features. Future research should explore the prognostic potential of such two-tier assessment.
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Affiliation(s)
- Mieke Van Bockstal
- Department of Pathology, Erasmus Medical Centre, Rotterdam, The Netherlands.,Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | | | | | - Hélène Dano
- Department of Pathology, University Clinics St Luc, Brussels, Belgium
| | - Giuseppe Floris
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium.,Department of Imaging and Pathology, Laboratory of Translational Cell & Tissue Research, KU Leuven, Leuven, Belgium
| | - Christine Galant
- Department of Pathology, University Clinics St Luc, Brussels, Belgium
| | - Kathleen Lambein
- Department of Pathology, AZ St Lucas Hospital, Ghent, Belgium.,Department of Surgical Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Dieter Peeters
- Department of Pathology, Antwerp University Hospital, Antwerp, Belgium
| | | | | | - Sofie Verbeke
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | | | - Jo Van Dorpe
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
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Takahashi S, Thike AA, Koh VCY, Sasano H, Tan PH. Triple-negative and HER2 positive ductal carcinoma in situ of the breast: characteristics, behavior, and biomarker profile. Virchows Arch 2018; 473:275-283. [PMID: 30033510 DOI: 10.1007/s00428-018-2416-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/13/2018] [Accepted: 07/13/2018] [Indexed: 10/28/2022]
Abstract
We compared the characteristics, clinical behavior, and biomarker profile between HER2 positive (HER2+) and triple-negative (TN) ductal carcinoma in situ (DCIS) which are considered more aggressive than other DCIS subtypes. In addition, we explored the impact of these features on its potential of progression to invasive breast carcinomas. Cases of DCIS diagnosed at the Department of Pathology, Singapore General Hospital from 1994 to 2010 were identified. TN and HER2+ DCIS cases formed the study cohort. Immunohistochemistry (IHC) was performed for ER, PR, HER2, CK14, EGFR, and p53. Comparisons of clinicopathological features, IHC results, and clinical outcomes were performed between the two groups. We evaluated 145 HER2+ and 85 TN DCIS cases. HER2 positive DCIS had significantly higher nuclear grade (p < 0.001) and more frequent necrosis (p < 0.001) than TN DCIS. HER2 positive DCIS also harbored significantly higher rates of nuclear p53 immunoreactivity (p = 0.002) than TN DCIS. Younger patients (age < 40) with HER2+ and TN DCIS demonstrated statistically significant worse invasive DFS than older women (p < 0.001). Multivariate cox regression analysis (HR 15.08, 95% CI 12.79-81.45, p = 0.002) also confirmed these findings. In addition, younger patients (age < 40) with HER2+ DCIS experienced significantly poorer prognosis when p53 was also positive (p = 0.033). HER2+ DCIS had more aggressive pathological characteristics compared to TN DCIS; accumulation of mutant p53 could possibly be contributory. Age was an independent predictor of aggressive biological behavior of HER2+ and TN DCIS. We demonstrated that younger patients with p53 positive HER2+ DCIS had significantly adverse clinical outcome.
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Affiliation(s)
- Satoshi Takahashi
- Department of Pathology, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.,Department of Anatomical Pathology, Singapore General Hospital, 20 College Road, Academia, Diagnostics Tower, Singapore, 169856, Singapore
| | - Aye Aye Thike
- Department of Anatomical Pathology, Singapore General Hospital, 20 College Road, Academia, Diagnostics Tower, Singapore, 169856, Singapore.,Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Valerie Cui Yun Koh
- Department of Anatomical Pathology, Singapore General Hospital, 20 College Road, Academia, Diagnostics Tower, Singapore, 169856, Singapore
| | - Hironobu Sasano
- Department of Pathology, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.,Department of Pathology, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Puay Hoon Tan
- Department of Anatomical Pathology, Singapore General Hospital, 20 College Road, Academia, Diagnostics Tower, Singapore, 169856, Singapore. .,Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore. .,Division of Pathology, Singapore General Hospital, 20 College Road, Academia, Diagnostics Tower, Singapore, 169856, Singapore. .,Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 14 Medical Drive, MD6, #14-02T, Singapore, 117599, Singapore.
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16
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Libbrecht L, Lambein K, Van Bockstal M, Denys H. Collagen Alignment and Recurrence of DCIS-Letter. Cancer Epidemiol Biomarkers Prev 2018; 27:613. [PMID: 29716929 DOI: 10.1158/1055-9965.epi-17-1071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/19/2018] [Accepted: 01/29/2018] [Indexed: 11/16/2022] Open
Affiliation(s)
- Louis Libbrecht
- Department of Pathology, Saint-Luc University Hospital, Brussels, Belgium.
| | - Kathleen Lambein
- Department of Pathology, AZ Sint-Lucas Hospital Ghent, Ghent, Belgium
| | | | - Hannelore Denys
- Department of Oncology, University Hospital Ghent, Ghent, Belgium
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17
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Van Bockstal M, Floris G, Galant C, Lambein K, Libbrecht L. A plea for appraisal and appreciation of immunohistochemistry in the assessment of prognostic and predictive markers in invasive breast cancer. Breast 2018; 37:52-55. [DOI: 10.1016/j.breast.2017.10.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 10/23/2017] [Indexed: 12/13/2022] Open
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18
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Van Bockstal M, Libbrecht L, Floris G, Lambein K, Pinder S. Stromal inflammation, necrosis and HER2 overexpression in ductal carcinoma in situ of the breast: another causality dilemma? Ann Oncol 2017; 28:2317. [DOI: 10.1093/annonc/mdx253] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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19
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Lambein K, Van Bockstal M, Vandemaele L, Van den Broecke R, Cocquyt V, Geenen S, Denys H, Libbrecht L. Comparison of HER2 amplification status among breast cancer subgroups offers new insights in pathways of breast cancer progression. Virchows Arch 2017; 471:575-587. [PMID: 28567637 DOI: 10.1007/s00428-017-2161-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/09/2017] [Accepted: 05/22/2017] [Indexed: 12/21/2022]
Abstract
Although the prognostic and predictive significance of human epidermal growth factor receptor 2 (HER2) in invasive breast cancer is well established, its role in ductal carcinoma in situ (DCIS) remains unclear. Reports on combined evaluation of both HER2 protein expression and HER2 amplification status in pure DCIS and DCIS adjacent to invasive ductal carcinoma (i.e., admixed DCIS) are scarce. In this study, immunohistochemistry and fluorescence in situ hybridization (FISH) were used to assess HER2 status in 72 cases of pure DCIS, 73 cases of DCIS admixed with invasive ductal carcinoma (IDC), and 60 cases of pure IDC. HER2 copy number-based amplification was present in 49% of pure DCIS, 16% of admixed DCIS, 18% of admixed IDC, and 8% of pure IDC. Amplified pure DCIS with clusters of HER2 signals showed a significantly lower HER2 copy number than amplified admixed DCIS with clusters. Whereas pure DCIS and admixed DCIS presented significant differences, the in situ and invasive component of admixed tumors showed striking similarities regarding mean HER2 and chromosome 17 centromere (CEP17) copy number, grade, and estrogen and progesterone receptor expression. The discrepant prevalence of HER2 amplification among breast cancer subgroups indirectly suggests that HER2 may not play a crucial role in the transition of in situ to invasive breast cancer. The similarities in HER2 amplification status between the in situ and invasive component of admixed tumors hint at a common biological pathway for both components. Our data support the theory that pure DCIS, pure IDC, and admixed lesions have a common progenitor, but can progress as separate lineages.
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MESH Headings
- Adult
- Aged
- Biomarkers, Tumor/analysis
- Biomarkers, Tumor/genetics
- Breast Neoplasms/genetics
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/genetics
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Intraductal, Noninfiltrating/genetics
- Carcinoma, Intraductal, Noninfiltrating/pathology
- Disease Progression
- Female
- Gene Amplification
- Humans
- Middle Aged
- Receptor, ErbB-2/genetics
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Affiliation(s)
- Kathleen Lambein
- Department of Pathology, AZ St Lucas Hospital, Groenebriel 1, 9000, Ghent, Belgium
- Department of Oncology, KU Leuven, Surgical Oncology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Mieke Van Bockstal
- Department of Medical and Forensic Pathology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Lies Vandemaele
- Department of Medical and Forensic Pathology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Rudy Van den Broecke
- Department of Gynaecology, Ghent University Hospital, De Pintelaan 185, 9000, Ghent, Belgium
| | - Veronique Cocquyt
- Department of Medical Oncology, Ghent University Hospital, De Pintelaan 185, 9000, Ghent, Belgium
| | - Sofie Geenen
- Department of Medical and Forensic Pathology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Hannelore Denys
- Department of Medical Oncology, Ghent University Hospital, De Pintelaan 185, 9000, Ghent, Belgium
| | - Louis Libbrecht
- Department of Medical and Forensic Pathology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium.
- Department of Pathology, University Clinics St Luc, Hippokrateslaan 10, 1200, Sint-Lambrechts-Woluwe, Belgium.
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Di Cesare P, Pavesi L, Villani L, Battaglia A, Da Prada GA, Riccardi A, Frascaroli M. The Relationships between HER2 Overexpression and DCIS Characteristics. Breast J 2016; 23:307-314. [PMID: 27943525 DOI: 10.1111/tbj.12735] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The aim of this study was to demonstrate the correlation between human epidermal growth factor receptor 2 (HER2) overexpression and some poor prognosis factors in patients affected by ductal carcinoma in situ (DCIS). We evaluated 48 cases of DCIS, divided into two groups according to HER2 amplification status. Nuclear grade and "cancerization of lobules" were determined within primary DCIS and Ki67, estrogen receptor (ER), PR, and HER2 expression was established using immunohistochemistry. The histopathological variables in HER2-positive and in HER2-negative patients were compared to determine the recurrence risk. We also considered the median age at the time of surgery according to HER2 status. There were 11 recurrences (23%), 6 DCIS (55%), and 5 invasive cancer (45%). In an 8-year-long median follow-up, we hypothesized high risk of recurrence in HER2-positive DCIS. Patients with HER2-positive DCIS were younger than HER2-negative ones (p = 0.002). HER2-positive DCIS was also related to histopathological predictors of recurrence such as high nuclear grade (p < 0.001), high Ki67 expression (p = 0.003), low ER and PgR levels (p < 0.001), and the presence of "cancerization of lobules" (p < 0.049). Our trial suggests that HER2 amplification in primary DCIS is identified more frequently in younger patients and hypothesizes high risk of recurrence in HER2-positive DCIS related to histopathological predictors of overall relapse as high nuclear grade, high Ki67 expression, low ER and PgR levels, and the presence of "cancerization of lobules." In HER2-positive DCIS, other variables of recurrence risk are compared to HER2-negative lesions, without statistical significance. Our results show that HER2 testing might suggest clinicians the optimal treatment of patients with DCIS.
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Affiliation(s)
- Pamela Di Cesare
- Department of Medical Oncology, Humanitas Mater Domini Hospital, Castellanza, Italy
| | - Lorenzo Pavesi
- Department of Medical Oncology, Fondazione Salvatore Maugeri IRCCS, Pavia, Italy
| | - Laura Villani
- Department of Medical Oncology, Fondazione Salvatore Maugeri IRCCS, Pavia, Italy
| | - Andrea Battaglia
- Department of Medical Oncology, Fondazione Salvatore Maugeri IRCCS, Pavia, Italy
| | | | | | - Mara Frascaroli
- Department of Medical Oncology, Fondazione Salvatore Maugeri IRCCS, Pavia, Italy
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Abstract
BACKGROUND A subset of patients with ductal carcinoma in situ (DCIS) experience recurrence or progression to invasive cancer. Current clinical practice is not reliably guided by DCIS recurrence prediction, although recurrence risk for invasive breast cancer can now be assessed. We analyzed a panel of biomarkers (estrogen receptor, Her2, Ki67, p53, cyclin D1, COX-2, caveolin-1, survivin, and PPAR-γ) and DCIS histologic and clinical features to determine associations with DCIS recurrence. MATERIALS AND METHODS Seventy DCIS cases diagnosed between 1995 and 2010 were divided into 2 groups: 52 had DCIS without known recurrence after excision and 18 had DCIS with subsequent recurrence after excision as DCIS or invasive carcinoma in the ipsilateral or contralateral breast. Tissue microarrays were prepared, immunohistochemistry performed, and expression of the biomarkers scored semiquantitatively. Variables analyzed included age, tumor size, margin status, DCIS grade, necrosis, histologic type, and immunohistochemistry scores. Differences between groups were evaluated using t tests for continuous variables and Fisher exact tests for categorical variables. RESULTS Intraductal necrosis was associated with increased recurrence risk: 46% of nonrecurrent cases showed necrosis compared with 83% of those who recurred (P=0.007). Her2 (human epidermal growth factor receptor 2) and Ki67 expression distributions were significantly different between nonrecurrent and recurrent cases. Her2 was overexpressed in 14% of nonrecurrent cases compared with 50% in the recurrent cases (P=0.03). A total of 87% of nonrecurrent cases had low Ki67 staining (0% to 10%) compared with 50% among the recurrent cases (P=0.002). CONCLUSION Our results suggest that Her2 and Ki67 immunohistochemistry and the presence of intraductal necrosis aid in DCIS risk stratification.
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22
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Kim A, Heo SH, Kim YA, Gong G, Jin Lee H. An Examination of the Local Cellular Immune Response to Examples of Both Ductal Carcinoma In Situ (DCIS) of the Breast and DCIS With Microinvasion, With Emphasis on Tertiary Lymphoid Structures and Tumor Infiltrating Lymphoctytes. Am J Clin Pathol 2016; 146:137-44. [PMID: 27402610 DOI: 10.1093/ajcp/aqw097] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES We tried to describe cellular immune response (tertiary lymphoid structures (TLSs), lymphoid aggregates, tumor infiltrating lymphocytes (TILs)) in neoplastic microenvironment of ductal carcinoma in situ (DCIS) with or without associated microinvasion. METHODS The histopathologic parameters of 177 DCIS and 27 DCIS with microinvasion were evaluated. We determined number of ducts involved by DCIS, and calculated percentage of these ducts surrounded by TLSs. TILs were quantitated in 27 microinvasive cases. RESULTS Tumors having higher percentage of DCIS ducts associated with TLSs had higher incidence of microinvasion (P < .001). Percentage of DCIS ducts involved by TLSs was also higher in hormone receptor (HR)-/human epidermal growth factor receptor 2 (HER2)+ and TNBC subtypes of DCIS than in HR+/HER2- and HR+/HER2+ subtypes (38.04 ± 25.8%, 32.6 ± 32.4%, 2.5 ± 7.3% and 17.4 ± 23.3%, respectively, P < .001). In DCIS without microinvasion, HR+/HER2- subtype predominated (P < .001). In microinvasive cases, HR-/HER2+ subtype was most common. TNBC was more common in microinvasive carcinoma than DCIS (P < .001). Among 27 microinvasive ductal carcinomas, increased TLS amount was associated with increased TILs (P = .013). CONCLUSIONS TLS abundance around DCIS was associated with HER2+ and TNBC subtypes and microinvasion. Pathologists should be aware of microinvasion when diagnosing DCIS lesions with abundant TLSs.
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Affiliation(s)
- Ahrong Kim
- From the Department of Pathology, BioMedical Research Institute, Pusan National University Hospital, Pusan, Korea
| | - Sun-Hee Heo
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Young-Ae Kim
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Gyungyub Gong
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Hee Jin Lee
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
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Morita M, Yamaguchi R, Tanaka M, Tse GM, Yamaguchi M, Kanomata N, Naito Y, Akiba J, Hattori S, Minami S, Eguchi S, Yano H. CD8(+) tumor-infiltrating lymphocytes contribute to spontaneous "healing" in HER2-positive ductal carcinoma in situ. Cancer Med 2016; 5:1607-18. [PMID: 27061242 PMCID: PMC4944888 DOI: 10.1002/cam4.715] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/29/2016] [Accepted: 03/01/2016] [Indexed: 11/18/2022] Open
Abstract
We evaluated the associations between tumor‐infiltrating lymphocytes (TIL) including CD8‐positive [+] lymphocytes in ductal carcinoma in situ (DCIS) and histopathologic factors, particularly spontaneous “healing” and immunohistochemical (IHC)‐based subtypes, to clarify the effects of host immune response to cancer cells proliferation during early carcinogenesis for the breast cancer. This cohort enrolled 82 DCIS patients. We examined the relationships between clinicopathologic factors including age, DCIS architecture, Van Nuys classification, grade, comedo necrosis, apocrine features, TIL, CD8+ lymphocytes, healing, estrogen receptor and HER2 positivity, and IHC‐based subtypes [luminal, luminal‐HER2, HER2‐positive, triple negative (TN)]. The results were analyzed by univariate and multivariate analyses. High numbers of TIL (high‐TIL) and healing were seen in 30.5% and 39.0% of the cohort, respectively. The distributions of luminal, luminal‐HER2, HER2 and TN subtypes were 73.2%, 9.8%, 13.4%, and 3.6%, respectively. High Van Nuys grading, high‐grade, comedo necrosis, apocrine features, high‐TIL, high CD8+ lymphocytes and healing were significantly associated with HER2‐positive (luminal‐HER2, HER2), and TN subtypes. High‐TIL was significantly associated with high‐grade, comedo necrosis, apocrine features, healing, high CD8+ lymphocytes and HER2 and TN subtypes. Healing was significantly correlated with high CD8+ lymphocytes, high‐grade, comedo necrosis, apocrine features, and HER2‐positive and TN subtypes. Logistic regression analysis revealed a strong association between healing and TIL (odds ratio: 11.72, P = 0.024). High CD8+ lymphocytes was also significantly associated with healing (odds ratio: 9.26, P = 0.009). The results of this study suggested that the spontaneous healing phenomenon might be induced by CD8+ high‐TIL associated with high‐grade, comedo necrosis, apocrine features and HER2‐positive DCIS.
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Affiliation(s)
- Michi Morita
- Department of Pathology and Laboratory Medicine, Kurume University Medical Center, Kurume, Fukuoka, Japan.,Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka, Japan.,Department of Surgery, Japan Community Health Care Organization Kurume General Hospital, Kurume, Fukuoka, Japan
| | - Rin Yamaguchi
- Department of Pathology and Laboratory Medicine, Kurume University Medical Center, Kurume, Fukuoka, Japan.,Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Maki Tanaka
- Department of Surgery, Japan Community Health Care Organization Kurume General Hospital, Kurume, Fukuoka, Japan
| | - Gary M Tse
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Miki Yamaguchi
- Department of Surgery, Japan Community Health Care Organization Kurume General Hospital, Kurume, Fukuoka, Japan
| | - Naoki Kanomata
- Department of Pathology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Yoshiki Naito
- Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Jun Akiba
- Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Satoshi Hattori
- Department of Biostatistics Center, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Shigeki Minami
- Department of Surgery, Nagasaki Harbor Medical Center City Hospital, Nagasaki, Japan
| | - Susumu Eguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hirohisa Yano
- Department of Pathology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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HER2 Status in Premalignant, Early, and Advanced Neoplastic Lesions of the Stomach. DISEASE MARKERS 2015; 2015:234851. [PMID: 26494937 PMCID: PMC4606090 DOI: 10.1155/2015/234851] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 07/30/2015] [Indexed: 02/06/2023]
Abstract
Objectives. HER2 expression in gastric cancer (GC) has received attention as
a potential target for therapy with Trastuzumab. We reviewed the current knowledge on HER2
status in premalignant gastric lesions and in early (EGC) and advanced (AGC) GC to discuss
the possible pathogenetic and prognostic roles of HER2 overexpression in GC. Results.
HER2 overexpression was documented in gastric low-grade (LG) and high-grade intraepithelial neoplasia
(HG-IEN), with higher frequency in gastric type dysplasia. HER2 overexpression was significantly
associated with disease recurrence and poor prognosis in EGC representing an independent risk
factor for lymph node metastases. HER2 overexpression was more frequent in AGC characterized
by high grade, advanced stage, and high Ki-67 labeling index. The discordance in HER2
status was evidenced between primitive GC and synchronous or metachronous
metastases. Conclusions. HER2 overexpression in premalignant gastric
lesions suggests its potential involvement in the early steps of gastric carcinogenesis.
The assessment of HER2 status in EGC may be helpful for the identification of patients
who are at low risk for developing nodal metastases. Finally, the possible discordance in
HER2 status between primary GC and its synchronous metastases support routine assessment
of HER2 both in the primary GC and in its metastatic lesions.
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Lee HJ, Kim JY, Park IA, Song IH, Yu JH, Ahn JH, Gong G. Prognostic Significance of Tumor-Infiltrating Lymphocytes and the Tertiary Lymphoid Structures in HER2-Positive Breast Cancer Treated With Adjuvant Trastuzumab. Am J Clin Pathol 2015; 144:278-88. [PMID: 26185313 DOI: 10.1309/ajcpixuydvz0rz3g] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Tumor-infiltrating lymphocytes (TILs) have prognostic significance in breast cancer. The tertiary lymphoid structure (TLS) is related to the influx of TILs, and expression of major histocompatibility complex (MHC) I in tumor cells is necessary for the effective action of TILs. METHODS We retrospectively evaluated the relationship of TILs and TLS and the expression of MHC I in 447 HER2-positive breast cancers treated with chemotherapy and 1 year of trastuzumab. RESULTS TILs were more abundant in hormone receptor (HR)-/HER2+ tumors than in HR+/HER2+ tumors. HR-/HER2+ breast cancers with abundant TILs showed a higher histologic grade, the absence of lymphovascular invasion, the presence of peritumoral lymphocytic infiltration, moderate to abundant TLSs in adjacent tissue, and stronger HLA-ABC and HLA-A expression. Abundant TILs and the absence of lymphovascular invasion were found to be good, independent prognostic factors for disease-free survival in patients with HR-/HER2+ breast cancer. The level of TILs was not associated with the patients' prognosis in HR+ tumors. CONCLUSIONS Abundant TILs are an independent prognostic factor in HR-/HER2+ breast cancers. Evaluation of TILs in HR-/HER2+ breast cancers may provide valuable information regarding the prognosis of patients treated using adjuvant chemotherapy and trastuzumab.
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Affiliation(s)
- Hee Jin Lee
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Joo Young Kim
- Department of Pathology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - In Ah Park
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - In Hye Song
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jong Han Yu
- Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jin-Hee Ahn
- sDepartment of Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Gyungyub Gong
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Immunostaining of ∆Np63 (using the p40 antibody) is equal to that of p63 and CK5/6 in high-grade ductal carcinoma in situ of the breast. Virchows Arch 2015; 467:67-70. [PMID: 25850754 DOI: 10.1007/s00428-015-1766-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 02/23/2015] [Accepted: 03/20/2015] [Indexed: 10/23/2022]
Abstract
As a result of breast cancer screening programs, high-grade ductal carcinoma in situ (DCIS) of the breast is diagnosed more often. Frequently, a DCIS diagnosis can only be made using immunohistochemical stains to visualize the myoepithelial layer in order to assess microinvasion. Standard markers for myoepithelial cells are CK5/6 and p63. An isoform of the latter, ∆Np63, is recognized by a recently developed antibody, p40. Here, we compare the standard myoepithelial markers CK5/6 and p63 with p40. We immunostained full sections of tissue samples of 35 high-grade DCIS and compared the staining pattern of CK5/6, p63 and p40 in tumour tissue and in normal glands. Staining patterns of myoepithelial cells for p63 and p40 were similar in terms of the percentage of stained nuclei. In all cases, p63 was strongly expressed, while this was the case for p40 in 31 (89%) and moderately in 4 (11%) cases. All but one case (97%) showed a similar percentage of stained myoepithelial cells in comparing CK5/6 and p40 staining. CK5/6 expression was heterogeneous and strong/moderate/weak in 60, 34 and 6 % respectively. Compared to surrounding normal glands, staining of myoepithelial cells for all three markers in the neoplastic lesion was attenuated. In high-grade DCIS, p40 staining is highly specific for myoepithelial cells. Its staining pattern and intensity are equal to p63, which opens up its use for daily practice. Staining with p40 is less heterogeneous than that for CK5/6.
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Sclerosing adenosis as a predictor of breast cancer bilaterality and multicentricity. Virchows Arch 2015; 467:71-8. [PMID: 25838080 DOI: 10.1007/s00428-015-1769-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 12/17/2014] [Accepted: 03/23/2015] [Indexed: 10/23/2022]
Abstract
Breast cancer is occasionally complicated by sclerosing adenosis (SA). Although both lesions usually originate in the terminal duct lobular unit, their pathogenetic relationship has not yet been elucidated. The present study analyzed 63 breast cancer patients with SA (involving a total of 75 breasts) to clarify if coexisting SA increased the frequency of multicentric breast cancer or not. Using the topographical classification proposed in our previous study, breast cancers with SA were classified into the following three types: type A (n = 22), cancer area was completely surrounded by the SA; type B (n = 26), cancer area partially overlapped the SA; and type C (n = 27), cancer area was located separate from the SA. Breast cancers with SA had a significant (P < 0.001) increase in frequency of harboring bilateral and multicentric cancers [17 of 63 (27%) and 15 of 63 (24%), respectively] when compared to breast cancer patients without SA, regardless of topographical type. Breast cancers with SA were less invasive (P < 0.001), of lower histological grade (P = 0.034), and had similar frequency of estrogen receptor-positive (P = 0.21) and HER2-positive (P = 0.74) tumors. In conclusion, contralateral and ipsilateral multicentric breast cancers occurred at a higher frequency in those with SA. Our data suggest that SA is, in addition to lobular neoplasia, a predictor of multicentric breast cancers.
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