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Sun Y, Zhang W, Lu Y, He Y, Yahaya B, Liu Y, Lin J. An artificial signaling pathway primitive-based intelligent biomimetic nanoenzymes carrier platform for precise treatment of Her2 (+) tumors. Mater Today Bio 2024; 26:101105. [PMID: 38933416 PMCID: PMC11201151 DOI: 10.1016/j.mtbio.2024.101105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/03/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
In tumor treatment, the deposition of nanoenzymes in normal tissues and cause potential side effects are unavoidable. Here, we designed an intelligent biomimetic nanoenzymes carrier platform (MSCintelligent) that endows the carrier platform with "wisdom" by introducing Affibody-Notch(core)-VP64-GAL4/UAS-HSV-TK artificial signal pathways to mesenchymal stem cells (MSCs). This intelligent nanoenzymes carrier platform is distinguished from the traditional targeting tumor microenvironment or enhancing affinity with tumor, which endue MSCintelligent with tumor signal recognition capacity, so that MSCintelligent can autonomously distinguish tumor from normal tissue cells and feedback edited instructions. In this study, MSCintelligent can convert tumor signals into HSV-TK instructions through artificial signal pathway after recognizing Her2 (+) tumor. Subsequently, the synthesized HSV-TK can rupture MSCintelligent under the mediation of ganciclovir, and release the preloaded Cu/Fe nanocrystal clusters to kill the tumor accurately. Meanwhile, MSCintelligent without recognizing tumors will not initiate the HSV-TK instructions, thus being unresponsive to GCV and blocking the release of nanoenzymes in normal tissues. Consequently, MSCintelligent is the first intelligent biomimetic nanoenzymes carrier platform, which represents a new biomimetic nanoenzymes targeting mode.
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Affiliation(s)
- Yuliang Sun
- Stem Cell and Biotherapy Technology Research Center, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, 453003, China
- Department of Biomedical Sciences, Advanced Medical and Dental Institute (IPPT), Universiti Sains Malaysia, SAINS@BERTAM, 13200, Kepala Batas, Penang, Malaysia
- Breast Cancer Translational Research Program (BCTRP), Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - Wenlong Zhang
- Stem Cell and Biotherapy Technology Research Center, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yilin Lu
- Stem Cell and Biotherapy Technology Research Center, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yanan He
- Stem Cell and Biotherapy Technology Research Center, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, 453003, China
| | - Badrul Yahaya
- Department of Biomedical Sciences, Advanced Medical and Dental Institute (IPPT), Universiti Sains Malaysia, SAINS@BERTAM, 13200, Kepala Batas, Penang, Malaysia
- Breast Cancer Translational Research Program (BCTRP), Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - Yanli Liu
- Stem Cell and Biotherapy Technology Research Center, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, 453003, China
| | - Juntang Lin
- Stem Cell and Biotherapy Technology Research Center, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, 453003, China
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Bui CM, Oren A, Balzer B, Maluf H, Medeiros F. Human Epidermal Growth Factor Receptor 2 Overexpression/Amplification in Primary Ovarian Endometrioid Carcinoma. Appl Immunohistochem Mol Morphol 2024; 32:222-228. [PMID: 38635473 DOI: 10.1097/pai.0000000000001194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 03/07/2024] [Indexed: 04/20/2024]
Abstract
Human epidermal growth factor receptor 2 (HER2) expression has become increasingly helpful in predicting responses to anti-HER2 agents in gynecological cancers. This study retrospectively analyzed HER2 expression in 48 primary ovarian endometrioid carcinomas. HER2 immunohistochemistry was performed using the Ventana platform (Clone 4B5 monoclonal predilute) following the manufacturer's protocol. HER2 expression was equivocal (score 2+) by image analysis in 2 cases (4.17%) based on the breast cancer criteria. Fluorescence in situ hybridization was negative for HER2 amplification in one case (International Federation of Gynecology and Obstetrics, grade 1) and positive in the other (International Federation of Gynecology and Obstetrics, grade 3). Our findings contribute to the growing evidence that HER2 is overexpressed in a small proportion of ovarian endometrioid carcinoma, and thus may serve as a potential therapeutic target in selected cases.
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Affiliation(s)
- Chau M Bui
- Department of Pathology and Laboratory Medicine, Cedars Sinai Medical Center, Los Angeles, CA
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Kendall Bártů M, Němejcová K, Michálková R, Stružinská I, Hájková N, Hojný J, Krkavcová E, Laco J, Matěj R, Drozenová J, Méhes G, Fabian P, Hausnerová J, Švajdler M, Škapa P, Cibula D, Zima T, Dundr P. HER2 status as a potential predictive biomarker for ovarian clear cell carcinoma. Virchows Arch 2023; 483:497-507. [PMID: 37676270 DOI: 10.1007/s00428-023-03640-4] [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: 06/05/2023] [Revised: 07/21/2023] [Accepted: 08/30/2023] [Indexed: 09/08/2023]
Abstract
Ovarian clear cell carcinoma (OCCC) is a subtype of ovarian carcinoma characterized by unique biological features and highly malignant characteristics including low chemosensitivity. Therefore, new therapeutic targets are needed. These could include the downstream pathways of receptor tyrosine kinases, especially the human epidermal growth factor receptor 2 (HER2). Our main objective was to characterize the HER2 status using immunohistochemistry (IHC) and FISH on 118 OCCCs, also considering the novel paradigm of HER2-zero and HER2-low status. Other aims included determination of the association between HER2 status and survival, HER2 gene DNA and RNA NGS analysis, HER2 gene expression analysis, and correlation between IHC and gene expression in HER2-zero and HER2-low cases. Cases with HER2 overexpression/amplification accounted for 5.1% (6/118), with additional 3% harbouring HER2 gene mutation. The remaining 112 (94.9%) cases were HER2-negative. Of these, 75% were classified as HER2-zero and 25% as HER2-low. This percentage of HER2 aberrations is significant concerning their possible therapeutic influence. Cases from the HER2-zero group showed significantly better survival. Although this relationship lost statistical significance in multivariate analysis, the results have potential therapeutic significance. HER2 gene expression analysis showed a significant correlation with HER2 IHC status in the entire cohort (HER2-positive vs. HER2-negative), while in the cohort of only HER2-negative cases, the results did not reach statistical significance, suggesting that gene expression analysis would not be suitable to confirm the subdivision into HER2-low and HER2-zero. Our results also emphasize the need for standardized HER2 testing in OCCC to determine the best predictor of clinical response.
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Affiliation(s)
- Michaela Kendall Bártů
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2, 12800 Prague 2, Prague, Czech Republic.
| | - Kristýna Němejcová
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2, 12800 Prague 2, Prague, Czech Republic
| | - Romana Michálková
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2, 12800 Prague 2, Prague, Czech Republic
| | - Ivana Stružinská
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2, 12800 Prague 2, Prague, Czech Republic
| | - Nikola Hájková
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2, 12800 Prague 2, Prague, Czech Republic
| | - Jan Hojný
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2, 12800 Prague 2, Prague, Czech Republic
| | - Eva Krkavcová
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2, 12800 Prague 2, Prague, Czech Republic
| | - Jan Laco
- The Fingerland Department of Pathology, Charles University, Faculty of Medicine Hradec Králové and University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Radoslav Matěj
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2, 12800 Prague 2, Prague, Czech Republic
- Department of Pathology, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, 10034, Prague, Czech Republic
- Department of Pathology and Molecular Medicine, Third Faculty of Medicine, Charles University, Thomayer University Hospital, Prague, Czech Republic
| | - Jana Drozenová
- Department of Pathology, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, 10034, Prague, Czech Republic
| | - Gábor Méhes
- Department of Pathology, Faculty of Medicine, University of Debrecen, 4032, Debrecen, Hungary
| | - Pavel Fabian
- Department of Oncological Pathology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Jitka Hausnerová
- Department of Pathology, University Hospital Brno and Medical Faculty, Masaryk University, Brno, Czech Republic
| | - Marián Švajdler
- Šikl's Department of Pathology, The Faculty of Medicine and Faculty Hospital in Pilsen, Charles University, Pilsen, Czech Republic
| | - Petr Škapa
- Department of Pathology and Molecular Medicine, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - David Cibula
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Tomáš Zima
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Pavel Dundr
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2, 12800 Prague 2, Prague, Czech Republic
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Guan L, Wang Y, Cheng J, Zhang J, Kang S. Expression and clinical significance of HER2/neu, aromatase P450 and adhesion molecule CD24 in endometrial cancer. Eur J Histochem 2023; 67:3655. [PMID: 37565251 PMCID: PMC10476532 DOI: 10.4081/ejh.2023.3655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 07/31/2023] [Indexed: 08/12/2023] Open
Abstract
This study aimed at exploring the expression and clinical significance of aromatase P450, adhesion molecule CD24 and HER2/neu in endometrial cancer. The expression of aromatase P450, adhesion molecule CD24 and HER2/neu was detected by immunohistochemistry in 15 cases of endometrial hyperplasia group, 50 cases of endometrial adenocarcinoma and 3 cases of uterine papillary adenocarcinoma, with 15 cases of normal endometrium as control group. We detected no expression of aromatase P450, adhesion molecule CD24 or HER2/neu in control group. Aromatase P450 positive expression rate was 66.7% in endometrial hyperplasia group and 70.3% in endometrial carcinoma group, without significant difference (p>0.05). There was no significant difference (p>0.05) in the positive expression rate of aromatase P450 between different myometrial invasion groups of endometrial adenocarcinomas. CD24 positive expression rate was 40.0% in endometrial hyperplasia group and 79.6% in endometrial carcinoma group, with significant difference (p<0.05). HER2/neu positive expression rate was 26.7% in the endometrial hyperplasia group and 57% in endometrial carcinoma group, with significant difference (p<0.05). In conclusion, aromatase P450 may be one factor associated with endometrial cancer cell proliferation, while CD24 and HER2/neu may be important factors associated with the invasion and metastasis of endometrial cancer.
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Affiliation(s)
- Liyun Guan
- Department of Oncology, The Third Hospital of Shijiazhuang.
| | - Ying Wang
- Department of Obstetrics and Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang.
| | - Jianxin Cheng
- Department of Obstetrics and Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang.
| | - Jun Zhang
- Department of Obstetrics and Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang.
| | - Shan Kang
- Department of Obstetrics and Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang.
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Lin SY, Wang YH, Hsu CY, Chen YJ, Lai CR, Hang JF. Analytical validation of human epidermal growth factor receptor 2 immunohistochemistry by the use of the A0485 antibody versus the 4B5 antibody and breast versus gastric scoring guidelines in ovarian clear cell carcinoma. Histopathology 2021; 79:758-767. [PMID: 34036622 DOI: 10.1111/his.14419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 05/22/2021] [Indexed: 12/01/2022]
Abstract
AIMS The aim of this study was to evaluate human epidermal growth factor receptor 2 (HER2) immunohistochemistry (IHC) in ovarian clear cell carcinoma (OCCC) by using two antibodies and two scoring guidelines in correlation with HER2 amplification and clinicopathological features. METHODS AND RESULTS A tissue microarray was constructed by use of a total of 71 OCCC cases for IHC (the A0485 antibody and the 4B5 antibody) and dual-colour silver in-situ hybridisation (DISH). Two pathologists independently scored the IHC according to the 2018 American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) breast cancer guidelines (breast guidelines) and the 2016 ASCO/CAP gastro-oesophageal adenocarcinoma guidelines (gastric guidelines). IHC concordances between A0485 and 4B5 were 87.3-93.0%. Three to 16 (4.2-22.5%) cases had an IHC score of 2+/3+ with frequent basolateral/lateral membranous staining. The 4B5 antibody yielded fewer IHC 2+ cases than the A0485 antibody (n = 2-6 versus n = 5-12). Five (7.0%) cases had HER2 amplification as determined with DISH. Cases with papillary-predominant growth patterns were significantly more likely to have HER2 amplification (P = 0.0051). In predicting DISH results, IHC scored according to the gastric guidelines yielded 100%/100% sensitivity and 83.3-95.5%/98.2-100% specificity, and IHC scored according to the breast guidelines yielded 60-80%/33.3-66.7% sensitivity and 95.5-100%/100% specificity (including/excluding IHC 2+ cases). One case had intratumoral heterogeneity, with discordant results between primary and metastatic tumour specimens. CONCLUSION We demonstrated HER2 amplification in 7% of OCCC cases, and the molecular change is significantly associated with papillary-predominant growth patterns. In predicting HER2 amplification, a combination of 4B5 IHC and gastric guidelines provides the best sensitivity and fewer equivocal (IHC 2+) cases. Given the intratumoral heterogeneity, assessment of HER2 status on whole tissue sections and on both primary and metastatic tumour specimens is recommended.
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Affiliation(s)
- Shih-Yao Lin
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yeh-Han Wang
- Department of Pathology, Heping Fuyou Branch, Taipei City Hospital, Taipei, Taiwan.,College of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan.,Institute of Public Health, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chih-Yi Hsu
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,College of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Jen Chen
- Department of Obstetrics and Gynaecology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chiung-Ru Lai
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jen-Fan Hang
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
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Zhang J, Zhao X, Wang S, Wang N, Han J, Jia L, Ren X. Monitoring therapeutic response of human ovarian cancer to trastuzumab by SPECT imaging with (99m)Tc-peptide-Z(HER2:342). Nucl Med Biol 2015; 42:541-6. [PMID: 25735223 DOI: 10.1016/j.nucmedbio.2015.02.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 02/03/2015] [Accepted: 02/04/2015] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Patients with human epidermal growth factor receptor 2 (HER2)-positive cancer are candidates for treatment with the anti-HER2 antibody trastuzumab. How to systemically assess tumor HER2 expression and identifying appropriate use of anti-HER2 therapies by noninvasive imaging in vivo is an urgent issue. The purpose of this study was to evaluate SPECT imaging of (99m)Tc-Gly-(D)Ala-Gly-Gly-Z(HER2:342) ((99m)Tc-peptide-Z(HER2:342)) for monitoring therapeutic response to trastuzumab in nude mice bearing HER2-positive SKOV-3 xenografts. METHODS Nude mice bearing HER2-positive SKOV-3 xenografts were treated with trastuzumab (treatment group) or saline (control) with ten mice in each group. Mice in trastuzumab-treated group were given trastuzumab intraperiotoneally 4 mg/kg on day 1 and 2 mg/kg on day 8; Mice in control group were given physiological saline on day 1 and 8. Mice body weights and tumour volume were monitored every three days during treatment. In vivo SPECT imaging was performed in mice of the two groups using (99m)Tc-peptide-Z(HER2:342) before treatment, on day 8 and 15 after treatment. Radiolabeled probe uptake in tumours was measured as the ratio of radioactive counts in the tumour to that in the contralateral equivalent region (T/NT). After SPECT imaging on day 15, all the mice were euthanized, biodistribution studies of the SKOV-3 xenografts were carried out to validate the imaging results and HER2 expression of the transplanted tumours was analyzed by immunohistochemistry (IHC). Correlation analysis was performed between T/NT ratios acquired by in vivo SPECT imaging on day 15 and the HER2 level of tumours. In vitro cell binding capacity of (99m)Tc-Z(HER2:342) with SKOV-3 cells in the absence and presence of varying amount of trastuzumab were also conducted in the study. RESULTS Twenty mice body weight in the two groups gradually increased during treatment, but there was no statistical difference (p > 0.05). Though volumes of SKOV-3 xenografts gradually increased in each group during the treatment, the transplanted tumours in trastuzumab-treated group had a slower growth than those in control group (p < 0.05). Compared with the baseline, the results of in vivo imaging showed that radionuclide accumulation in transplanted tumours reduced significantly in trastuzumab-treated group after treatment (p < 0.05), whereas the tumour accumulation in control group increased after treatment. Biodistribution studies demonstrated that the results corresponded well with in vivo imaging data. Immunohistochemical staining confirmed the significant reduction in tumor HER2 level upon trastuzumab treatment, and there was an obviously positive correlation between T/NT ratios and HER2 level of tumours with correlation coefficient rs = 0.919, p < 0.05. There was no significant significance in cell binding ratios between varying amount of trastuzumab and the absence of trastuzumab (p > 0.05). CONCLUSIONS The early response to trastuzumab in mice bearing SKOV-3 xenografts was successfully monitored by SPECT imaging using (99m)Tc-peptide-Z(HER2:342). This approach may be valuable in monitoring the therapeutic response in HER 2-positive tumours under HER2-targeted therapy.
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Affiliation(s)
- Jingmian Zhang
- Department of Nuclear Medicine, The Fourth Hospital of Hebei Medical University, No.12 jiangkang Road, Shijiazhuang 050011, China
| | - Xinming Zhao
- Department of Nuclear Medicine, The Fourth Hospital of Hebei Medical University, No.12 jiangkang Road, Shijiazhuang 050011, China.
| | - Shijie Wang
- Department of Tumor Imaging, The Fourth Hospital of Hebei Medical University, No.12 jiangkang Road, Shijiazhuang 050011, China
| | - Na Wang
- Department of Nuclear Medicine, The Fourth Hospital of Hebei Medical University, No.12 jiangkang Road, Shijiazhuang 050011, China
| | - Jingya Han
- Department of Nuclear Medicine, The Fourth Hospital of Hebei Medical University, No.12 jiangkang Road, Shijiazhuang 050011, China
| | - Lizhuo Jia
- Department of Nuclear Medicine, The Fourth Hospital of Hebei Medical University, No.12 jiangkang Road, Shijiazhuang 050011, China
| | - Xiuchun Ren
- Department of Nuclear Medicine, The Fourth Hospital of Hebei Medical University, No.12 jiangkang Road, Shijiazhuang 050011, China
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Comprehensive profiling of EGFR/HER receptors for personalized treatment of gynecologic cancers. Mol Diagn Ther 2014; 18:137-51. [PMID: 24403167 DOI: 10.1007/s40291-013-0070-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The primary gynecologic cancers include cancers of the endometrium, ovary, and cervix. Worldwide, cervical cancer is the most common gynecologic cancer, whereas endometrial cancer is the most common in the US. Ovarian cancer is the fifth most deadly cancer in women, with 5-year survival rates for advanced disease at only 27 %. As such, there is an urgent need for reliable screening tools and novel targeted therapeutic regimens for these malignancies. The epidermal growth factor receptor (EGFR)/human EGFR (HER) family of receptors has been associated with the development and progression of many solid tumors. Despite clear roles for these receptors in other cancers, the expression of HER family members in gynecologic cancers and their relationship with disease stage, grade, and response to treatment remain controversial. In this review, we describe the existing evidence for the use of HER family members as diagnostic and prognostic indicators as well as their potential as therapeutic targets in gynecologic cancers.
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Missaoui N, Abdelkarim SB, Ayachi M, Hmissa S, Yaacoubi MT. HER2 expression in ovarian mucinous carcinomas in Tunisia. Asian Pac J Cancer Prev 2014; 15:8121-5. [PMID: 25338994 DOI: 10.7314/apjcp.2014.15.19.8121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Ovarian mucinous carcinoma has a poor prognosis in advanced stages and a poor response to conventional chemotherapy. An efficient treatment is not yet available. We heere investigated HER2 expression and the potential for trastuzumab therapy in ovarian mucinous tumors. MATERIALS AND METHODS Immunohistochemistry was performed in formalin-fixed, paraffin-embedded tissue from 27 ovarian mucinous tumors including 14 carcinomas and 13 borderline tumors diagnosed in the Pathology Department, Farhet Hached Hospital, Sousse, between 1993 and 2013. The HercepTest (DAKO) was used for immunohistochemistry. RESULTS HER2 expression was observed in only one borderline tumor (7.7%) and in 14.3% of mucinous carcinomas of the ovary. CONCLUSIONS Our results suggest that trastuzumab therapy would be an option for patients with mucinous carcinoma when the tumor has HER2 overexpression.
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Affiliation(s)
- Nabiha Missaoui
- Research Unit03/UR/08-13, Cancer Epidemiology and Cytopathology in Tunisian Center, Faculty of Medicine, Sousse, Tunisia E-mail :
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Zhang JM, Zhao XM, Wang SJ, Ren XC, Wang N, Han JY, Jia LZ. Evaluation of 99mTc-peptide-ZHER2:342 Affibody® molecule for in vivo molecular imaging. Br J Radiol 2013; 87:20130484. [PMID: 24273251 DOI: 10.1259/bjr.20130484] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The aim of this study was to develop an improved method for labelling ZHER2:342 with Technetium-99m ((99m)Tc) using Gly-(d) Ala-Gly-Gly as a chelator and to evaluate the feasibility of its use for visualization of HER2 expression in vivo. METHODS The Affibody® molecule ZHER2:342 was synthesized by Fmoc/tBu solid phase synthesis. The chelator, Gly-(d) Ala-Gly-Gly, was introduced by manual synthesis as the N-terminal extensions of ZHER2:342. ZHER2:342 was labelled with (99m)Tc. The labelling efficiency, radiochemical purity and in vitro stability of the labelled molecular probe were analysed by reversed-phase high performance liquid chromatography. Biodistribution and molecular imaging using (99m)Tc-peptide-ZHER2:342 were performed. RESULTS The molecular probe was successfully synthesized and labelled with (99m)Tc with the labelling efficiency of 98.10 ± 1.73% (n=5). The radiolabelled molecular probe remained highly stable in vitro. The molecular imaging showed high uptake in HER2-expressing SKOV-3 xenografts, whereas the MDA-MB-231 xenografts with low HER2 expression were not clearly imaged at any time after the injection of (99m)Tc-peptide-ZHER2:342. The predominant clearance pathway for (99m)Tc-peptide-ZHER2:342 was through the kidneys. Conculsion: (99m)Tc-peptide-ZHER2:342 using Gly-(d) Ala-Gly-Gly as a chelator is a promising tracer agent with favourable biodistribution and imaging properties that may be developed as a radiopharmaceutical for the detection of HER2-positive malignant tumours. ADVANCES IN KNOWLEDGE The (99m)Tc-peptide-ZHER2:342 molecular probe is a promising tracer agent, and the results in this study provide a foundation for future development of protocols for earlier visual detection of cancer in the clinical setting.
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Affiliation(s)
- J-M Zhang
- Department of Nuclear Medicine, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
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10
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English DP, Roque DM, Santin AD. HER2 expression beyond breast cancer: therapeutic implications for gynecologic malignancies. Mol Diagn Ther 2013; 17:85-99. [PMID: 23529353 DOI: 10.1007/s40291-013-0024-9] [Citation(s) in RCA: 143] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
HER2 or ErbB2 is a member of the epidermal growth factor family and is overexpressed in subsets of breast, ovarian, gastric, colorectal, pancreatic, and endometrial cancers. HER2 regulates signaling through several pathways (Ras/Raf/mitogen-activated protein kinase and phosphatidylinositol-3 kinase/protein kinase B/mammalian target of rapamycin pathways) associated with cell survival and proliferation. HER2-overexpressed and/or gene-amplified tumors are generally regarded as biologically aggressive neoplasms. In breast, cervical, endometrial, and ovarian cancer, there have been several studies linking the amplification of the c-erbB2 gene with chemoresistance and overall poor survival. Tyrosine kinase inhibitors and immunotherapy with monoclonal antibodies targeting HER2 hold promise for patients harboring these aggressive neoplasms. Trastuzumab combined with cytotoxic chemotherapy agents or conjugated with radioactive isotopes is currently being investigated in clinical trials of several tumor types.
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Affiliation(s)
- Diana P English
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, 333 Cedar Street, LSOG 305, P.O. Box 208063, New Haven, CT 06520-8063, USA
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Anglesio MS, Kommoss S, Tolcher MC, Clarke B, Galletta L, Porter H, Damaraju S, Fereday S, Winterhoff BJ, Kalloger SE, Senz J, Yang W, Steed H, Allo G, Ferguson S, Shaw P, Teoman A, Garcia JJ, Schoolmeester JK, Bakkum-Gamez J, Tinker AV, Bowtell DD, Huntsman DG, Gilks CB, McAlpine JN. Molecular characterization of mucinous ovarian tumours supports a stratified treatment approach with HER2 targeting in 19% of carcinomas. J Pathol 2013; 229:111-20. [PMID: 22899400 DOI: 10.1002/path.4088] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 07/31/2012] [Accepted: 08/04/2012] [Indexed: 12/11/2022]
Abstract
Mucinous ovarian carcinomas (MCs) typically do not respond to current conventional therapy. We have previously demonstrated amplification of HER2 in 6 of 33 (18.2%) mucinous ovarian carcinomas (MCs) and presented anecdotal evidence of response with HER2-targeted treatment in a small series of women with recurrent HER2-amplified (HER2+) MC. Here, we explore HER2 amplification and KRAS mutation status in an independent cohort of 189 MCs and 199 mucinous borderline ovarian tumours (MBOTs) and their association to clinicopathological features. HER2 status was assessed by immunohistochemistry (IHC), FISH, and CISH, and interpreted per ASCO/CAP guidelines, with intratumoural heterogeneity assessment on full sections, where available. KRAS mutation testing was performed with Sanger sequencing. Stage and grade were associated with recurrence on both univariate and multivariate analysis (p < 0.001). Assessment of HER2 status revealed overexpression/amplification of HER2 in 29/154 (18.8%) MCs and 11/176 (6.2%) MBOTs. There was excellent agreement between IHC, FISH, and CISH assessment of HER2 status (perfect concordance of HER2 0 or 1+ IHC with non-amplified status, and 3+ IHC with amplified status). KRAS mutations were seen in 31/71 (43.6%) MCs and 26/33 (78.8%) MBOTs, and were near mutually exclusive of HER2 amplification. In the 189 MC cases, a total of 54 recurrences and 59 deaths (53 of progressive disease) were observed. Within MCs, either HER2 amplification/overexpression or KRAS mutation was associated with decreased likelihood of disease recurrence (p = 0.019) or death (p = 0.0041) when compared to cases with neither feature. Intratumoural heterogeneity was noted in 26% of HER2-overexpressing cases. These data support the stratification of MCs for the testing of new treatments, with HER2-targeted therapy as a viable option for HER2+ advanced or recurrent disease. Further research is required to delineate the molecular and clinical features of the ∼34% of MC cases with neither HER2 amplification nor KRAS mutations.
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Affiliation(s)
- Michael S Anglesio
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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12
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Ovarian cancer: opportunity for targeted therapy. JOURNAL OF ONCOLOGY 2011; 2012:682480. [PMID: 22235203 PMCID: PMC3253450 DOI: 10.1155/2012/682480] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/10/2011] [Accepted: 11/01/2011] [Indexed: 11/30/2022]
Abstract
Ovarian cancer is a common cause of cancer mortality in women with limited treatment effectiveness in advanced stages. The limitation to treatment is largely the result of high rates of cancer recurrence despite chemotherapy and eventual resistance to existing chemotherapeutic agents. The objective of this paper is to review current concepts of ovarian carcinogenesis. We will review existing hypotheses of tumor origin from ovarian epithelial cells, Fallopian tube, and endometrium. We will also review the molecular pathogenesis of ovarian cancer which results in two specific pathways of carcinogenesis: (1) type I low-grade tumor and (2) type II high-grade tumor. Improved understanding of the molecular basis of ovarian carcinogenesis has opened new opportunities for targeted therapy. This paper will also review these potential therapeutic targets and will explore new agents that are currently being investigated.
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13
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Detection of HER-2 and EGFR Gene Amplification Using Chromogenic In-situ Hybridization Technique in Ovarian Tumors. Appl Immunohistochem Mol Morphol 2010; 18:69-74. [DOI: 10.1097/pai.0b013e3181af7d3f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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McAlpine JN, Wiegand KC, Vang R, Ronnett BM, Adamiak A, Köbel M, Kalloger SE, Swenerton KD, Huntsman DG, Gilks CB, Miller DM. HER2 overexpression and amplification is present in a subset of ovarian mucinous carcinomas and can be targeted with trastuzumab therapy. BMC Cancer 2009; 9:433. [PMID: 20003286 PMCID: PMC2803495 DOI: 10.1186/1471-2407-9-433] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2009] [Accepted: 12/10/2009] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The response rate of ovarian mucinous carcinomas to paclitaxel/carboplatin is low, prompting interest in targeted molecular therapies. We investigated HER2 expression and amplification, and the potential for trastuzumab therapy in this histologic subtype of ovarian cancer. METHODS HER2 status was tested in 33 mucinous carcinomas and 16 mucinous borderline ovarian tumors (BOT)). Five cases with documented recurrence and with tissue from the recurrence available for testing were analyzed to determine whether HER2 amplification status changed over time. Three prospectively identified recurrent mucinous ovarian carcinomas were assessed for HER2 amplification and patients received trastuzumab therapy with conventional chemotherapy. RESULTS Amplification of HER2 was observed in 6/33 (18.2%) mucinous carcinomas and 3/16 (18.8%) BOT. HER2 amplification in primary mucinous carcinomas was not associated with an increased likelihood of recurrence. The prospectively identified recurrent mucinous carcinomas showed overexpression and amplification of HER2; one patient's tumor responded dramatically to trastuzumab in combination with conventional chemotherapy, while another patient experienced an isolated central nervous system recurrence after trastuzumab therapy. CONCLUSION HER2 amplification is relatively common in ovarian mucinous carcinomas (6/33, 18.2%), although not of prognostic significance. Trastuzumab therapy is a treatment option for patients with mucinous carcinoma when the tumor has HER2 amplification and overexpression.
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MESH Headings
- Adenocarcinoma, Mucinous/classification
- Adenocarcinoma, Mucinous/drug therapy
- Adenocarcinoma, Mucinous/genetics
- Adenocarcinoma, Mucinous/mortality
- Adolescent
- Adult
- Aged
- Antibodies, Monoclonal/administration & dosage
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Humanized
- Antineoplastic Agents/therapeutic use
- Drug Delivery Systems
- Female
- Gene Amplification/physiology
- Gene Expression Regulation, Neoplastic
- Genes, erbB-2
- Humans
- Middle Aged
- Ovarian Neoplasms/classification
- Ovarian Neoplasms/drug therapy
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/mortality
- Recurrence
- Retrospective Studies
- Trastuzumab
- Up-Regulation
- Young Adult
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Affiliation(s)
- Jessica N McAlpine
- Department of Gynaecology and Obstetrics, University of British Columbia, Vancouver, BC, Canada
| | - Kimberly C Wiegand
- Center for Translational and Applied Genomics, BC Cancer Agency, British Columbia, Canada
| | - Russell Vang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Bridgett M Ronnett
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Anna Adamiak
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Martin Köbel
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Steve E Kalloger
- Center for Translational and Applied Genomics, BC Cancer Agency, British Columbia, Canada
| | | | - David G Huntsman
- Center for Translational and Applied Genomics, BC Cancer Agency, British Columbia, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - C Blake Gilks
- Center for Translational and Applied Genomics, BC Cancer Agency, British Columbia, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Dianne M Miller
- Department of Gynaecology and Obstetrics, University of British Columbia, Vancouver, BC, Canada
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15
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Quaye L, Song H, Ramus SJ, Gentry-Maharaj A, Høgdall E, DiCioccio RA, McGuire V, Wu AH, Van Den Berg DJ, Pike MC, Wozniak E, Doherty JA, Rossing MA, Ness RB, Moysich KB, Høgdall C, Blaakaer J, Easton DF, Ponder BAJ, Jacobs IJ, Menon U, Whittemore AS, Krüger-Kjaer S, Pearce CL, Pharoah PDP, Gayther SA. Tagging single-nucleotide polymorphisms in candidate oncogenes and susceptibility to ovarian cancer. Br J Cancer 2009; 100:993-1001. [PMID: 19240718 PMCID: PMC2661781 DOI: 10.1038/sj.bjc.6604947] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2008] [Revised: 01/19/2009] [Accepted: 01/26/2009] [Indexed: 01/02/2023] Open
Abstract
Low-moderate risk alleles that are relatively common in the population may explain a significant proportion of the excess familial risk of ovarian cancer (OC) not attributed to highly penetrant genes. In this study, we evaluated the risks of OC associated with common germline variants in five oncogenes (BRAF, ERBB2, KRAS, NMI and PIK3CA) known to be involved in OC development. Thirty-four tagging SNPs in these genes were genotyped in approximately 1800 invasive OC cases and 3000 controls from population-based studies in Denmark, the United Kingdom and the United States. We found no evidence of disease association for SNPs in BRAF, KRAS, ERBB2 and PIK3CA when OC was considered as a single disease phenotype; but after stratification by histological subtype, we found borderline evidence of association for SNPs in KRAS and BRAF with mucinous OC and in ERBB2 and PIK3CA with endometrioid OC. For NMI, we identified a SNP (rs11683487) that was associated with a decreased risk of OC (unadjusted P(dominant)=0.004). We then genotyped rs11683487 in another 1097 cases and 1792 controls from an additional three case-control studies from the United States. The combined odds ratio was 0.89 (95% confidence interval (CI): 0.80-0.99) and remained statistically significant (P(dominant)=0.032). We also identified two haplotypes in ERBB2 associated with an increased OC risk (P(global)=0.034) and a haplotype in BRAF that had a protective effect (P(global)=0.005). In conclusion, these data provide borderline evidence of association for common allelic variation in the NMI with risk of epithelial OC.
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Affiliation(s)
- L Quaye
- Gynaecological Oncology Department, UCL EGA Institute for Women's Health, University College London, London, UK
| | - H Song
- Strangeways Research Laboratory, CR-UK Department of Oncology, University of Cambridge, Cambridge, UK
| | - S J Ramus
- Gynaecological Oncology Department, UCL EGA Institute for Women's Health, University College London, London, UK
| | - A Gentry-Maharaj
- Gynaecological Oncology Department, UCL EGA Institute for Women's Health, University College London, London, UK
| | - E Høgdall
- Department of Virus, Hormones and Cancer, Institute of Cancer Epidemiology, Danish Cancer Society, Copenhagen, Denmark
| | - R A DiCioccio
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - V McGuire
- Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA, USA
| | - A H Wu
- Department of Preventive Medicine, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
| | - D J Van Den Berg
- Department of Preventive Medicine, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
| | - M C Pike
- Department of Preventive Medicine, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
| | - E Wozniak
- Gynaecological Oncology Department, UCL EGA Institute for Women's Health, University College London, London, UK
| | - J A Doherty
- JD Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - M A Rossing
- JD Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - R B Ness
- Department of Epidemiology and University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
| | - K B Moysich
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - C Høgdall
- Gynaecology Clinic, The Juliane Marie Centre, Rigshospitalet, University of Copenhagen, Denmark, CR-UK
| | - J Blaakaer
- Department of Gynaecology and Obstetrics, Aarhus University Hospital, Skejby, Aarhus, Denmark
| | - The Ovarian Cancer Association Consortium
- Gynaecological Oncology Department, UCL EGA Institute for Women's Health, University College London, London, UK
- Strangeways Research Laboratory, CR-UK Department of Oncology, University of Cambridge, Cambridge, UK
- Department of Virus, Hormones and Cancer, Institute of Cancer Epidemiology, Danish Cancer Society, Copenhagen, Denmark
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo, NY, USA
- Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA, USA
- Department of Preventive Medicine, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
- JD Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Department of Epidemiology and University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Gynaecology Clinic, The Juliane Marie Centre, Rigshospitalet, University of Copenhagen, Denmark, CR-UK
- Department of Gynaecology and Obstetrics, Aarhus University Hospital, Skejby, Aarhus, Denmark
- Department of Oncology, Strangeways Research Laboratory, Genetic Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - D F Easton
- Department of Oncology, Strangeways Research Laboratory, Genetic Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - B A J Ponder
- Strangeways Research Laboratory, CR-UK Department of Oncology, University of Cambridge, Cambridge, UK
| | - I J Jacobs
- Gynaecological Oncology Department, UCL EGA Institute for Women's Health, University College London, London, UK
| | - U Menon
- Gynaecological Oncology Department, UCL EGA Institute for Women's Health, University College London, London, UK
| | - A S Whittemore
- Department of Preventive Medicine, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
| | - S Krüger-Kjaer
- Department of Virus, Hormones and Cancer, Institute of Cancer Epidemiology, Danish Cancer Society, Copenhagen, Denmark
- Gynaecology Clinic, The Juliane Marie Centre, Rigshospitalet, University of Copenhagen, Denmark, CR-UK
| | - C L Pearce
- Department of Preventive Medicine, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
| | - P D P Pharoah
- Strangeways Research Laboratory, CR-UK Department of Oncology, University of Cambridge, Cambridge, UK
| | - S A Gayther
- Gynaecological Oncology Department, UCL EGA Institute for Women's Health, University College London, London, UK
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Farley J, Fuchiuji S, Darcy KM, Tian C, Hoskins WJ, McGuire WP, Hanjani P, Warshal D, Greer BE, Belinson J, Birrer MJ. Associations between ERBB2 amplification and progression-free survival and overall survival in advanced stage, suboptimally-resected epithelial ovarian cancers: a Gynecologic Oncology Group Study. Gynecol Oncol 2009; 113:341-7. [PMID: 19272639 DOI: 10.1016/j.ygyno.2009.02.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Revised: 01/29/2009] [Accepted: 02/04/2009] [Indexed: 10/21/2022]
Abstract
OBJECTIVE(S) The Gynecologic Oncology Group (GOG) examined the association between ERBB2 amplification and clinical covariates, tumor response, disease status post-chemotherapy, progression-free survival (PFS), and overall survival (OS) in epithelial ovarian cancer (EOC). METHODS Women with suboptimally-resected, advanced stage EOC who participated in GOG-111, a multi-center randomized phase III trial of cyclophosphamide+cisplatin versus paclitaxel+cisplatin, and provided a tumor block through the companion protocol GOG-9404 were eligible. ERBB2 amplification was examined using fluorescence in situ hybridization (FISH) with probes for ERBB2 and the centromere of chromosome 17 (CEP17). RESULTS ERBB2 amplification, defined as >2 copies of ERBB2/CEP17, was a rare event in EOC with 7% (9/133) of women exhibiting between 2.2 and 33.7 copies of ERBB2/CEP17, and was not associated with patient age, race, GOG performance status, stage, cell type, grade, measurable disease status, volume of ascites, tumor response or disease status post-chemotherapy. Women with >2 verses < or =2 copies of ERBB2/CEP17 did not have a reduced risk of disease progression (hazard ratio [HR]=0.56; 95% confidence interval [CI]=0.27-1.16; p=0.120) or death (HR=0.57; 95% CI=0.26-1.23; p=0.152), and ERBB2 amplification was not an independent prognostic factor for PFS or OS. ERBB2 amplification, defined as >4 copies of ERBB2/nuclei, was observed in 9% (12/133) of women with levels ranging from 4.2 to 49.2 copies of ERBB2/nuclei, and was associated with older age and volume of ascites, but not with the other clinical covariates or outcome. CONCLUSION(S) ERBB2 amplification is a rare event and has no predictive or prognostic value in suboptimally-resected, advanced stage EOC treated with platinum-based combination chemotherapy.
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Affiliation(s)
- John Farley
- Department of Obstetrics and Gynecology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
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17
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Quaye L, Gayther SA, Ramus SJ, Di Cioccio RA, McGuire V, Hogdall E, Hogdall C, Blaakr J, Easton DF, Ponder BA, Jacobs I, Kjaer SK, Whittemore AS, Pearce CL, Pharoah PD, Song H. The Effects of Common Genetic Variants in Oncogenes on Ovarian Cancer Survival. Clin Cancer Res 2008; 14:5833-9. [DOI: 10.1158/1078-0432.ccr-08-0819] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Lafky JM, Wilken JA, Baron AT, Maihle NJ. Clinical implications of the ErbB/epidermal growth factor (EGF) receptor family and its ligands in ovarian cancer. Biochim Biophys Acta Rev Cancer 2008; 1785:232-65. [PMID: 18291115 DOI: 10.1016/j.bbcan.2008.01.001] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2007] [Revised: 01/22/2008] [Accepted: 01/23/2008] [Indexed: 01/28/2023]
Abstract
The ERBB or EGF receptor (EGFR) proto-oncogene family, which consists of four structurally-related transmembrane receptors (i.e., EGFR, ErbB2, ErbB3, and ErbB4), plays an etiological role in the molecular pathogenesis of cancer and is a key therapeutic target in many types of cancer, including ovarian cancer. These ErbB/EGF receptor tyrosine kinases play important physiologic roles in cell proliferation, survival, adhesion, motility, invasion, and angiogenesis. It is, therefore, not surprising that gene amplification, genetic mutation, and altered transcription/translation result in aberrant ErbB/EGF receptor expression and/or signal transduction, contributing to the development of malignant transformation. Clinically, the diagnostic, prognostic, and theragnostic significance of any single ErbB receptor and/or ErbB ligand is controversial, but generally, ErbB receptor overexpression has been correlated with poor prognosis and decreased therapeutic responsiveness in ovarian cancer patients. Thus, anticancer agents targeting ErbB/EGF receptors hold great promise for personalized cancer treatment. Yet, challenges remain in designing prospective clinical trials to assess the clinical utility of ErbB receptors and their ligands to diagnose cancer; to predict progression-free and overall survival, therapeutic responsiveness, and disease recurrence; and to monitor treatment responsiveness. Here, we review the tissue expression and serum biomarker studies that have evaluated the diagnostic, prognostic, and theragnostic utility of ErbB/EGF receptors, their circulating soluble isoforms (sEGFR/sErbBs), and their cognate ligands in ovarian cancer patients.
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Affiliation(s)
- Jacqueline M Lafky
- Department of Experimental Pathology, Mayo Clinic, Rochester, MN 55905, USA
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19
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Abstract
The application of high throughput expression profiling and other advanced molecular biology laboratory techniques has revolutionised the management of cancers and is gaining attention in the field of gynaecological cancers. Such new approaches may help to improve our understanding of carcinogenesis and facilitate screening and early detection of gynaecological cancers and their precursors. Individualised prediction of patients' responses to therapy and design of personalised molecular targeted therapy is also possible. The studies of various molecular targets involved in the various signal pathways related to carcinogenesis are particularly relevant to such applications. At the moment, the application of detection and genotyping of human papillomavirus in management of cervical cancer is one of the most well established appliances of molecular targets in gynaecological cancers. Methylation, telomerase and clonality studies are also potentially useful, especially in assisting diagnosis of difficult clinical scenarios. This post-genomic era of clinical medicine will continue to make a significant impact in routine pathology practice. The contribution of pathologists is indispensable in analysis involving tissue microarray. On the other hand, both pathologists and bedside clinicians should be aware of the limitation of these molecular targets. Interpretation must be integrated with clinical and histopathological context to avoid misleading judgement. The importance of quality assurance of all such molecular techniques and their ethical implications cannot be over-emphasised.
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Affiliation(s)
- Annie N Y Cheung
- Department of Pathology, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China.
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20
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Benbrahim-Tallaa L, Webber MM, Waalkes MP. Mechanisms of acquired androgen independence during arsenic-induced malignant transformation of human prostate epithelial cells. ENVIRONMENTAL HEALTH PERSPECTIVES 2007; 115:243-7. [PMID: 17384772 PMCID: PMC1817693 DOI: 10.1289/ehp.9630] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2006] [Accepted: 11/20/2006] [Indexed: 05/14/2023]
Abstract
BACKGROUND Prostate cancer progression often occurs with overexpression of growth factors and receptors, many of which engage the Ras/mitogen-activated protein MAP kinase (MAPK) pathway. OBJECTIVES In this study we used arsenic-transformed human prostate epithelial cells, which also show androgen-independent growth, to study the possibility that chronic activation of Ras/MAPK signaling may contribute to arsenic-induced prostate cancer progression. METHODS Control and chronic arsenic-transformed prostate epithelial cells (CAsE-PE) were compared for Ras/MAPK signaling capacities using reverse transcription-polymerase chain reaction and Western blot analyses. RESULTS We found activation of HER-2/neu oncogene in transformed CAsE-PE cells, providing molecular evidence of androgen independence in the transformed cells. CAsE-PE cells displayed constitutively increased expression of unmutated K-Ras (6-fold), and the downstream MAP kinases A-Raf and B-Raf (2.2-fold and 3.2-fold, respectively). There was also increased expression of phosphorylated MEK1/2 and Elk1 in the transformant cells. The MEK1/2 inhibitor, U0126, blocked PSA overexpression in CAsE-PE cells. CONCLUSION Thus, arsenic-induced malignant transformation and acquired androgen independence are linked to Ras signaling activation in human prostate epithelial cells. Chronic activation of this pathway can sensitize the androgen receptor to subphysiologic levels of androgen. This may be important in arsenic carcinogenesis and provide a mechanism that may be common for prostate cancer progression driven by diverse agents.
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Affiliation(s)
- Lamia Benbrahim-Tallaa
- Inorganic Carcinogenesis Section, Laboratory of Comparative Carcinogenesis, National Cancer Institute at the National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - Mukta M. Webber
- Department of Medicine and
- Department of Zoology, Michigan State University, East Lansing, Michigan, USA
| | - Michael P. Waalkes
- Inorganic Carcinogenesis Section, Laboratory of Comparative Carcinogenesis, National Cancer Institute at the National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
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Mano MS, Rosa DD, De Azambuja E, Ismael GFV, Durbecq V. The 17q12-q21 amplicon: Her2 and topoisomerase-IIalpha and their importance to the biology of solid tumours. Cancer Treat Rev 2006; 33:64-77. [PMID: 17113234 DOI: 10.1016/j.ctrv.2006.10.001] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2006] [Revised: 10/01/2006] [Accepted: 10/04/2006] [Indexed: 02/08/2023]
Abstract
Her2 and topoisomerase-IIalpha (T2A) gene amplification are separate events, although the latter is more frequently seen in Her2 amplified (34-90%) than in Her2 non-amplified (5-10%) tumours. There is a better correlation between Her2 amplification and protein overexpression in breast cancer (BC) than in other tumour types. This marker is also considered a powerful prognostic factor in BC, with similar data emerging in other solid tumours such as bladder, ovarian, endometrial, gastro-oesophageal and non-small cell lung cancer. Her2 amplification and/or overexpression are highly predictive of response to HER2-targeted compounds such as trastuzumab and lapatinib but have been inconsistent predictors of response to cytotoxic chemotherapy. There is also evidence that these tumours are relatively resistant to anti-oestrogen therapy (tamoxifen) but not to oestrogen deprivation (e.g. with aromatase inhibitors). T2A aberrations are uncommon events in solid tumours, with an overall prevalence of approximately 10%. T2A amplification has shown inconsistent correlation with T2A protein expression in preclinical and clinical studies, mainly because non-genetic events such as proliferation rate can also affect protein expression. Expression of T2A protein has not been shown to reliably predict response to T2A inhibitors, despite the fact that this enzyme is the direct target for these compounds. In BC, T2A amplification appears to be a good predictor of response to anthracyclines, but these data are still in the process of validation. The significance of T2A deletions is currently under investigation, but contrary to what was previously thought, it may also predict benefit from treatment with T2A inhibitors. The prognostic significance of T2A aberrations is currently unknown.
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Affiliation(s)
- Max S Mano
- Medical Oncology Unit, Jules Bordet Institut, Bd de Waterloo, 125, 1000 Brussels, Belgium.
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22
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Brozek I, Kardaś I, Ochman K, Debniak J, Stukan M, Ratajska M, Morzuch L, Emerich J, Limon J. HER2 Amplification Has no Prognostic Value in Sporadic and Hereditary Ovarian Tumours. Hered Cancer Clin Pract 2006; 4:39-42. [PMID: 20223002 PMCID: PMC3401919 DOI: 10.1186/1897-4287-4-1-39] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2005] [Accepted: 11/18/2005] [Indexed: 11/26/2022] Open
Abstract
Whereas HER2 amplification is a well-known phenomenon in breast tumours, its frequency and clinical importance in ovarian cancer have not been established. The aim of the study was to compare the frequency of HER2 amplification in hereditary (BRCA-positive) and sporadic (BRCA-negative) ovarian tumours and to estimate the association of this gene alteration on clinical outcome in ovarian cancer patients. We analysed HER2 amplification in 53 ovarian tumours: 20 from mutation carriers (18 in BRCA1 and 2 in BRCA2 gene) and 33 from non-carriers. Fluorescence in situ hybridization for HER2 was performed on 'touch' slides from frozen tumour samples or formalin-fixed, paraffin-embedded tissue. Our results indicate that high amplification (HER2: centromere ratio>5) is an infrequent phenomenon in ovarian tumours (6/53 cases). It occurs in both hereditary (4/20) and sporadic (2/33) tumours and no difference in the frequency of HER2 amplification exists between these groups. There is no significant difference in the clinical outcome of patients with HER2 amplified and non-amplified tumours (p = 0.3). Our results suggest a different biological role of HER2 amplification in ovarian and breast cancer.
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Affiliation(s)
- Izabela Brozek
- Department of Biology and Genetics, Medical University of Gdańsk.
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23
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Braunschweig T, Chung JY, Hewitt SM. Tissue microarrays: bridging the gap between research and the clinic. Expert Rev Proteomics 2006; 2:325-36. [PMID: 16000080 DOI: 10.1586/14789450.2.3.325] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Tissue microarrays are a high-throughput method for the investigation of biomarkers in multiple tissue specimens at once. This technique allows for the analysis of up to 500 tissue samples in a single experiment using immunohistochemistry and in situ hybridization. Recently, cell lines and xenografts have been reduced to a tissue microarray format and are being applied to preclinical drug development. In clinical research, tissue microarrays are applied at multiple levels: comprehensive analysis of samples in the context of a clinical trial or across a population. Tissue microarrays play a central role in translational research, facilitating the discovery of molecules that have potential roles in the diagnosis, prognosis and prediction of response to therapy.
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Affiliation(s)
- Till Braunschweig
- Tissue Array Research Program, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4605, USA.
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Serrano-Olvera A, Dueñas-González A, Gallardo-Rincón D, Candelaria M, De la Garza-Salazar J. Prognostic, predictive and therapeutic implications of HER2 in invasive epithelial ovarian cancer. Cancer Treat Rev 2006; 32:180-90. [PMID: 16483720 DOI: 10.1016/j.ctrv.2006.01.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The HER2 oncogene encodes a transmembrane protein partially homologous to epidermal growth factor receptor. This oncogene has been studied mainly in breast cancer where it has prognostic, predictive and therapeutic target value. The expression of HER2 in epithelial ovarian cancer has been less studied. HER2 expression can be determined through IHC, FISH, CISH and ELISA among other tests, with reported positivity frequencies of overexpression varying from 1.8% to 76%. In some studies HER2 overexpression has been associated with advanced stages, poorly differentiated tumors, resistance to chemotherapy and shortened survival. Although trastuzumab is able to produce a low response rate as a single agent in pretreated ovarian cancer patients with overexpression of HER2, its usefulness is limited due to the low frequency of strong expression. To date there is not enough bases for assessment and HER2-based therapies in epithelial ovarian cancer.
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O'Neill CJ, Deavers MT, Malpica A, Foster H, McCluggage WG. An Immunohistochemical Comparison Between Low-Grade and High-Grade Ovarian Serous Carcinomas. Am J Surg Pathol 2005. [DOI: 10.1097/01.pas.0000166367.68459.7d] [Citation(s) in RCA: 124] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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