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Hiraki T, Oishi T, Yoshikawa S, Honma K, Ohe S, Isei T, Kukita Y, Takai T, Shimada K, Takei Y, Goto K. Loss of p16 Immunoexpression and Deletions of CDKN2A in the Progression of Extramammary Paget Disease: An Immunohistochemical and Genetic Study of 24 Invasive/Metastatic Cases. Am J Dermatopathol 2024; 46:492-498. [PMID: 38648029 DOI: 10.1097/dad.0000000000002726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
ABSTRACT Information regarding the genetic alterations in extramammary Paget disease (EMPD) is scarce. This study investigated the significance of CDKN2A and MTAP alterations in EMPD progression using immunohistochemistry and panel DNA sequencing. In total, 24 invasive/metastatic EMPD cases were included in this study. The immunoexpression of p16 and MTAP in the primary in situ, primary invasive, and metastatic tumor components was evaluated. Panel DNA sequencing was performed for metastatic tumor components in 5 of the 24 cases. Immunoexpression of p16 in the in situ tumor component was at least partially preserved in all 19 tested cases (100%). By contrast, the invasive tumor component was diffusely or partially lost in 18 (81.8%) of 22 tested cases. Regarding the foci of lymph node metastasis, 13 (81.2%) of the 16 patients showed a significant loss of p16 expression. Loss of MTAP immunoexpression was observed less frequently compared with the loss of p16 expression. CDKN2A homozygous deletions were confirmed in all 5 tested cases by sequencing, whereas MTAP deletions were detected in only 2 cases. In conclusion, p16 expression loss and CDKN2A deletions can be frequently seen in invasive/metastatic cases of EMPD.
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Affiliation(s)
- Tsubasa Hiraki
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Takuma Oishi
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Shusuke Yoshikawa
- Department of Dermatology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Keiichiro Honma
- Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan
| | - Shuichi Ohe
- Department of Dermatologic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Taiki Isei
- Department of Dermatologic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Yoji Kukita
- Laboratory of Genomic Pathology, Research Center, Osaka International Cancer Institute, Osaka, Japan
| | - Toshihiro Takai
- Department of Dermatology, Hyogo Cancer Center, Akashi, Japan
| | - Keiji Shimada
- Department of Pathology, Nara City Hospital, Nara, Japan
| | - Yusuke Takei
- Department of Clinical Laboratory, National Hospital Organization Himeji Medical Center, Himeji, Japan
| | - Keisuke Goto
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
- Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan
- Department of Dermatology, Hyogo Cancer Center, Akashi, Japan
- Department of Pathology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
- Department of Pathology, Itabashi Central Clinical Laboratory, Tokyo, Japan
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
- Department of Diagnostic Pathology, Chutoen General Medical Center, Kakegawa, Japan
- Department of Diagnostic Pathology, Osaka National Hospital, Osaka, Japan; and
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
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Hsu CY, Yanagi T, Maeda T, Nishihara H, Funakoshi T, Miyamoto K, Iwamoto R, Takahashi K, Ujiie H. Establishment of a trastuzumab-resistant extramammary Paget disease model: loss of PTEN as a potential mechanism. Br J Cancer 2024:10.1038/s41416-024-02788-3. [PMID: 38987365 DOI: 10.1038/s41416-024-02788-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 06/25/2024] [Accepted: 07/01/2024] [Indexed: 07/12/2024] Open
Abstract
BACKGROUND/OBJECTIVES Extramammary Paget disease (EMPD) is a rare, cutaneous intraepithelial adenocarcinoma typically treated with wide local excision. Unfortunately, a number of patients with metastases show poor responses to chemotherapy. While some studies have explored trastuzumab's effectiveness against EMPD positive for human epidermal growth factor receptor 2 (HER2), trastuzumab resistance (TR) may emerge after anti-HER2 therapy. METHODS/SUBJECTS In this study, we established TR EMPD patient-derived xenografts (PDX) that replicated the histological and HER2 expression traits of naive EMPD tumours. RESULTS Cancer gene analyses revealed a loss of the PTEN gene in TR tumours, which was further confirmed by immunohistochemical staining and immunoblotting to test for protein expression levels. Reduced PTEN levels correlated with increased protein kinase B (Akt) phosphorylation and p27 downregulation, suggesting a potential mechanism for trastuzumab resistance in EMPD cells. In the trastuzumab-sensitive EMPD-PDX mouse model, PTEN inhibitors partially restored trastuzumab-mediated tumour regression. The TR EMPD-PDX responded favourably to targeted therapy (lapatinib, abemaciclib, palbociclib) and chemotherapy (eribulin, docetaxel, trastuzumab deruxtecan). CONCLUSIONS This study demonstrates an innovative TR EMPD-PDX model and introduces promising antineoplastic effects with various treatments for TR EMPD tumours.
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Affiliation(s)
- Che-Yuan Hsu
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
- Department of Dermatology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Teruki Yanagi
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
- Department of Dermatology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.
| | - Takuya Maeda
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroshi Nishihara
- Genomics Unit, Keio Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Takeru Funakoshi
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Kodai Miyamoto
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
- Department of Dermatology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Ririko Iwamoto
- Department of Dermatology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Kenzo Takahashi
- Department of Dermatology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Hideyuki Ujiie
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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Pérez JC, Salgado AC, Pérez-Mies B, Rullán JAD, Ajuria-Illarramendi O, Alia EMG, Serrano Domingo JJ. Extramammary Paget Disease: a Therapeutic Challenge, for a Rare Entity. Curr Oncol Rep 2023; 25:1081-1094. [PMID: 37421583 PMCID: PMC10556167 DOI: 10.1007/s11912-023-01434-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2023] [Indexed: 07/10/2023]
Abstract
PURPOSE OF REVIEW Extramammary Paget disease (EMPD) is a rare entity which is more frequently localized at the vulva, though it only accounts for 1-2% of vulvar neoplasms. It is a primary cutaneous adenocarcinoma whose cell of origin is still a matter of controversy: it can either arise from apocrine/eccrine glands or from stem cells. The diagnosis demands a biopsy and entails a histopathological analysis by which cells show similar characteristics as breast Paget disease. RECENT FINDINGS Treatment approach can entail surgery, radiotherapy, photodynamic therapy, systemic chemotherapy, and topical chemotherapy. For metastatic disease, many different chemotherapy regimens have been explored and even targeted therapy can play an important role in this disease. Since almost 30-40% of patients overexpress HER-2, trastuzumab and anti-HER-2 therapies can be employed in this setting. Due to its low incidence, there is almost no specific evidence on therapeutic interventions for this disease. Thus, there is a neat unmet need for molecular characterization of EMPD and diagnostic tools that allow clinicians to guide treatment both in the early and in the advanced disease settings. In this review, we aim to summarize available evidence about diagnosis and treatment of EMPD, both localized and metastatic, and to provide a comprehensive analysis that may help clinicians for therapeutic decisions.
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Affiliation(s)
- Jesús Chamorro Pérez
- Medical Oncology Department, Ramón y Cajal University Hospital, Carretera de Colmenar Viejo, Km 9.100, 28034 Madrid, CP Spain
| | - Alfonso Cortes Salgado
- Medical Oncology Department, Ramón y Cajal University Hospital, Carretera de Colmenar Viejo, Km 9.100, 28034 Madrid, CP Spain
| | - Belén Pérez-Mies
- Pathology Department, Ramón y Cajal University Hospital, Carretera de Colmenar Viejo, Km 9.100, 28034 Madrid, CP Spain
| | - Jose Antonio Domínguez Rullán
- Radiation Oncology Department, Ramón y Cajal University Hospital, Carretera de Colmenar Viejo, Km 9.100, 28034 Madrid, CP Spain
| | - Odile Ajuria-Illarramendi
- Nuclear Medicine Department, Ramón y Cajal University Hospital, Carretera de Colmenar Viejo, Km 9.100, 28034 Madrid, CP Spain
| | - Eva María Guerra Alia
- Medical Oncology Department, Ramón y Cajal University Hospital, Carretera de Colmenar Viejo, Km 9.100, 28034 Madrid, CP Spain
| | - Juan José Serrano Domingo
- Medical Oncology Department, Ramón y Cajal University Hospital, Carretera de Colmenar Viejo, Km 9.100, 28034 Madrid, CP Spain
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Takahashi GW, Vetto J, Leitenberger JJ, Hung A. Efficacy of Abemaciclib in the Management of Refractory Metastatic Extramammary Paget’s Disease. Cureus 2022; 14:e27534. [PMID: 36060324 PMCID: PMC9428388 DOI: 10.7759/cureus.27534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/30/2022] [Indexed: 11/25/2022] Open
Abstract
Published systemic therapy options for metastatic extramammary Paget's disease have largely been anecdotal due to the rarity of this disease, which has precluded the ability to conduct clinical trials. We describe the favorable response of a 72-year-old man with extramammary Paget's disease, whose disease has been controlled with the CDK4/6 inhibitor, abemaciclib. The rationale behind the selection of this therapy is discussed.
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Tokuchi K, Maeda T, Kitamura S, Yanagi T, Ujiie H. HER2-Targeted Antibody–Drug Conjugates Display Potent Antitumor Activities in Preclinical Extramammary Paget’s Disease Models: In Vivo and Immunohistochemical Analyses. Cancers (Basel) 2022; 14:cancers14143519. [PMID: 35884581 PMCID: PMC9322551 DOI: 10.3390/cancers14143519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 11/20/2022] Open
Abstract
Simple Summary The prognosis for advanced Extramammary Paget’s disease (EMPD) is almost always poor. HER2-targeted antibody–drug conjugates (ADCs) such as trastuzumab emtansine and trastuzumab deruxtecan have proven to be effective against HER2-positive breast cancers; however, no studies have addressed HER2-targeted ADCs as treatments for EMPD. We examine the efficacy of ADCs against an EMPD patient-derived xenograft (PDX) model harboring pathogenic ERBB2 mutations. Treatment with trastuzumab emtansine or trastuzumab deruxtecan was found to significantly regress EMPD-PDX tumors in only seven days, with no recurrence observed for 10 weeks. Our results suggest that HER2-targeted ADCs could be novel and promising treatment options for patients with EMPD, especially in cases with the ERBB2-mutation or ERBB2-overexpression. Abstract Extramammary Paget’s disease (EMPD) is an adenocarcinoma that develops mainly in the genital region of older adults. The prognosis for advanced EMPD is almost always poor; thus, novel therapeutic strategies need to be developed. HER2-targeted antibody–drug conjugates (ADCs) such as trastuzumab emtansine and trastuzumab deruxtecan have proven effective against HER2-positive breast cancers; however, no studies have addressed HER2-targeted ADCs as treatments for EMPD. We examine the efficacy of ADCs against an EMPD patient-derived xenograft (PDX) model harboring pathogenic ERBB2 mutations and investigate the expression levels of HER2 using EMPD clinical samples. Trastuzumab emtansine or trastuzumab deruxtecan was administered intravenously to tumor-bearing NOD/Scid mice. Treatment with trastuzumab emtansine or trastuzumab deruxtecan was found to significantly regress EMPD-PDX tumors in only seven days, with no recurrence observed for 10 weeks. EMPD tumors extracted 48 h after drug administration revealed the TUNEL-positive ratio to be significantly higher for the HER2-targeted ADC-treated tumors than for the control tumors. EMPD patients’ clinical samples revealed a significant correlation between HER2 positivity and invasion, suggesting that HER2 status is associated with tumor progression. Our results suggest that HER2-targeted ADCs could be novel and promising treatment options for patients with EMPD, especially in ERBB2-mutant or ERBB2-overexpressed cases.
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