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Jagosky M, Tan AR. Combination of Pertuzumab and Trastuzumab in the Treatment of HER2-Positive Early Breast Cancer: A Review of the Emerging Clinical Data. BREAST CANCER-TARGETS AND THERAPY 2021; 13:393-407. [PMID: 34163239 PMCID: PMC8213954 DOI: 10.2147/bctt.s176514] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 03/23/2021] [Indexed: 01/03/2023]
Abstract
Human epidermal growth factor receptor type 2 (HER2) is a relevant and effective target in breast cancer. The development of monoclonal antibodies against HER2 has revolutionized the treatment of HER2-positive breast cancer. The humanized monoclonal antibody, trastuzumab, was the first in its class to be widely adopted. It was initially studied in the metastatic setting and then in the treatment of early-stage disease, demonstrating significant improvement in overall survival in both settings. The addition of pertuzumab further improved upon results achieved with trastuzumab and chemotherapy, specifically extending overall survival in patients with metastatic disease, lessening the risk of recurrence when used in the adjuvant setting, and improving pathologic complete response rate when utilized in the neoadjuvant setting. In this article, we review the studies that support the use of HER2-directed monoclonal antibodies in early-stage breast cancer both in the adjuvant and neoadjuvant settings and focus on the success of dual HER2-targeted therapy achieved with the combination of trastuzumab and pertuzumab. A newer way to administer these agents, specifically the subcutaneous formulation of pertuzumab and trastuzumab with recombinant human hyaluronidase, will also be discussed.
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Affiliation(s)
- Megan Jagosky
- Department of Solid Tumor Oncology and Investigational Therapeutics, Levine Cancer Institute, Atrium Health, Charlotte, NC, USA
| | - Antoinette R Tan
- Department of Solid Tumor Oncology and Investigational Therapeutics, Levine Cancer Institute, Atrium Health, Charlotte, NC, USA
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102
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Wehrenberg-Klee E, Sinevici N, Nesti S, Kalomeris T, Austin E, Larimer B, Mahmood U. HER3 PET Imaging Identifies Dynamic Changes in HER3 in Response to HER2 Inhibition with Lapatinib. Mol Imaging Biol 2021; 23:930-940. [PMID: 34101105 DOI: 10.1007/s11307-021-01619-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/30/2021] [Accepted: 05/23/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE Standard therapy for HER2+ breast cancers includes HER2 inhibition. While HER2 inhibitors have significantly improved therapeutic outcomes, many patients remain resistant to therapy. An important intrinsic resistance mechanism to HER2 inhibition in some breast cancers is dynamic upregulation of HER3. Increase in HER3 expression that occurs in response to HER2 inhibition allows for continued growth signaling through HER2/HER3 heterodimers, promoting tumor escape. We hypothesized that a non-invasive method to image changes in HER3 expression would be valuable to identify those breast cancers that dynamically upregulate HER3 in response to HER2 inhibition. We further hypothesized that this imaging method could identify those tumors that would benefit by additional HER3 knockdown. PROCEDURES In a panel of HER2+ breast cancer cell lines treated with the HER2 inhibitor lapatinib, we evaluate changes in HER3 expression and viability. Mouse HER2+ breast cancer models treated with lapatinib were imaged with a peptide-based HER3-specific PET imaging agent [68Ga]HER3P1 to assess for dynamic changes in tumoral HER3 expression and uptake confirmed by biodistribution. Subsequently, HER2+ cell lines were treated with the HER2 inhibitor lapatinib as well HER3-specific siRNA to assess for changes in viability and correlate with HER3 expression upregulation. For all statistical comparisons, P<0.05 was considered statistically significant. RESULTS Lapatinib treatment of a panel of HER2+ breast cancer cell lines increased HER3 expression in the lapatinib-resistant cell line MDA-MB 453 but not the lapatinib-resistant cell-line HCC-1569. Evaluation of [68Ga]HER3P1 uptake in mice implanted with the HER2+ breast cancer cell lines MDA-MB453 or HCC-1569 prior to and after treatment with lapatinib demonstrated a significant increase in MDA-MB453 tumors only, consistent with in vitro findings. The additional knockdown of HER3 increased therapeutic efficacy of lapatinib only in MDA-MB453 cells, but not in HCC-1569 cells. CONCLUSION HER3 PET imaging can be used to visualize dynamic changes in HER3 expression that occur in HER2+ breast cancers with HER2 inhibitor treatment and identify those likely to benefit by the addition of combination HER3 and HER2 inhibition.
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Affiliation(s)
- Eric Wehrenberg-Klee
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Suite 5.407, Boston, MA, 02129, USA
| | - Nicoleta Sinevici
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Suite 5.407, Boston, MA, 02129, USA
| | - Sarah Nesti
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Suite 5.407, Boston, MA, 02129, USA
| | - Taylor Kalomeris
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Suite 5.407, Boston, MA, 02129, USA
| | - Emily Austin
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Suite 5.407, Boston, MA, 02129, USA
| | - Benjamin Larimer
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Suite 5.407, Boston, MA, 02129, USA
| | - Umar Mahmood
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Suite 5.407, Boston, MA, 02129, USA.
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103
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Bae SJ, Kim JH, Ahn SG, Jeung HC, Sohn J, Kim GM, Kim MH, Kim SI, Park S, Park HS, Kim JY, Jeong J. Real-World Clinical Outcomes of Biosimilar Trastuzumab (CT-P6) in HER2-Positive Early-Stage and Metastatic Breast Cancer. Front Oncol 2021; 11:689587. [PMID: 34150658 PMCID: PMC8213064 DOI: 10.3389/fonc.2021.689587] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/17/2021] [Indexed: 11/21/2022] Open
Abstract
Background The trastuzumab biosimilar CT-P6 has demonstrated equivalent efficacy and comparable safety to reference trastuzumab (RTZ) in clinical trials of human epidermal growth factor receptor 2 (HER2)-positive early breast cancer (EBC). Here, we present the first real-world comparison of CT-P6 versus RTZ with dual HER2-targeted therapy for the neoadjuvant and palliative first-line treatment with HER2-positive EBC and metastatic breast cancer (MBC) patients in two tertiary hospitals in Korea. Methods We retrospectively investigated medical records in the Severance Breast Cancer Registry in Korea. We identified patients with HER2-positive EBC (n=254) who had received neoadjuvant chemotherapy with RTZ or CT-P6, plus pertuzumab, carboplatin and docetaxel (TCHP) and untreated stage IV MBC (n=103) who had received palliative first-line treatment with RTZ or CT-P6, plus pertuzumab and docetaxel (THP) between May 2014 and December 2019. The primary endpoints were pathologic complete response (pCR) in the EBC and progression-free survival (PFS) in the MBC cohort. Overall survival (OS), overall response rate (ORR), disease control rate (DCR), and cardiac safety were secondary endpoints. Results A similar percentage of EBC patients achieved a pCR with CT-P6 versus RTZ (74.4% [93/125]) vs 69.8% [90/129], p=0.411). For patients with MBC, median follow-up duration was 23.0 and 41.0 months for CT-P6 and RTZ groups, respectively; median PFS did not differ significantly between two groups (13.0 vs 18.0 months, 95% confidence intervals (CIs) 0.0-26.6 vs 11.3-24.7, p=0.976). The ORR, DCR, and cardiac safety profiles did not also show significant difference efficacy outcomes between two groups. Conclusions These real-world data suggest that biosimilar trastuzumab CT-P6 has similar effectiveness and cardiac safety to RTZ in HER2-positive EBC and MBC patients, when administered as part of dual HER2-targeted therapy with pertuzumab plus chemotherapy in the neoadjuvant or palliative setting.
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Affiliation(s)
- Soong June Bae
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.,Institute for Breast Cancer Precision Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Jee Hung Kim
- Institute for Breast Cancer Precision Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Division of Medical Oncology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Sung Gwe Ahn
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.,Institute for Breast Cancer Precision Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Hei-Cheul Jeung
- Institute for Breast Cancer Precision Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Division of Medical Oncology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Joohyuk Sohn
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Gun Min Kim
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Min Hwan Kim
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Seung Il Kim
- Department of Surgery, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Seho Park
- Department of Surgery, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Hyung Seok Park
- Department of Surgery, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Ji Ye Kim
- Department of Surgery, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Joon Jeong
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.,Institute for Breast Cancer Precision Medicine, Yonsei University College of Medicine, Seoul, South Korea
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104
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Wu S, Haltom J, Zhao W, Yang J, Zhou Z, Gu X. Evolution and functional divergence of the ERBB receptor family. Pharmacogenomics 2021; 22:473-484. [PMID: 34036795 DOI: 10.2217/pgs-2020-0158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: The ERBB gene family plays an important role in cell proliferation and differentiation, and aberrant activations could result in tumorigenesis, which makes this gene family an attractive drug target in the area of precision oncology. Materials & methods: Functional divergence analysis and conservation analysis were performed using ClustalW, MEGA7 and DIVERGE3 software. Results: One hundred and forty five functional divergence residues sites, 94 totally conserved sites and averagely 345 conserved sites of individual gene member were obtained. Some have been reported to play role in drug binding, tumorigenesis and drug resistance. Conclusion: Functional divergence residues with high posterior probabilities and conserved residues may possess certain functions, and aberrant alterations may confer drug resistance or contribute to tumorigenesis.
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Affiliation(s)
- Shanshan Wu
- Medical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China
| | - Jeffrey Haltom
- Department of Genetics, Development & Cell Biology, Iowa State University, Ames, IA 50011, USA
| | - Wenyi Zhao
- Institute of Drug Metabolism and Pharmaceutical Analysis & Zhejiang Provincial Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jingwen Yang
- Human Phenome Institute, Fudan University, Shanghai, 201203, China
| | - Zhan Zhou
- Institute of Drug Metabolism and Pharmaceutical Analysis & Zhejiang Provincial Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China.,Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou, 310018, China
| | - Xun Gu
- Department of Genetics, Development & Cell Biology, Iowa State University, Ames, IA 50011, USA
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105
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Eguchi A, Ueki A, Hoshiyama J, Kuwata K, Chikaoka Y, Kawamura T, Nagatoishi S, Tsumoto K, Ueki R, Sando S. A DNA Aptamer That Inhibits the Aberrant Signaling of Fibroblast Growth Factor Receptor in Cancer Cells. JACS AU 2021; 1:578-585. [PMID: 34467321 PMCID: PMC8395645 DOI: 10.1021/jacsau.0c00121] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Indexed: 06/13/2023]
Abstract
Growth factor receptors are activated through dimerization by the binding of their ligands and play pivotal roles in normal cell function. However, the aberrant activity of the receptors has been associated with cancer malignancy. One of the main causes of the aberrant receptor activation is the overexpression of receptors and the resultant formation of unliganded receptor dimers, which can be activated in the absence of external ligand molecules. Thus, the unliganded receptor dimer is a promising target to inhibit aberrant signaling in cancer. Here, we report an aptamer that specifically binds to fibroblast growth factor receptor 2b and inhibits the aberrant receptor activation and signaling. Our investigation suggests that this aptamer inhibits the formation of the receptor dimer occurring in the absence of external ligand molecules. This work presents a new inhibitory function of aptamers and the possibility of oligonucleotide-based therapeutics for cancer.
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Affiliation(s)
- Akihiro Eguchi
- Department of Chemistry and Biotechnology andDepartment of Bioengineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ayaka Ueki
- Department of Chemistry and Biotechnology andDepartment of Bioengineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Junya Hoshiyama
- Department of Chemistry and Biotechnology andDepartment of Bioengineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Keiko Kuwata
- Institute
of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
| | - Yoko Chikaoka
- Proteomics
Laboratory, Isotope Science Center, The
University of Tokyo, 2-11-16, Yayoi, Bunkyo-Ku, Tokyo 113-0032, Japan
| | - Takeshi Kawamura
- Proteomics
Laboratory, Isotope Science Center, The
University of Tokyo, 2-11-16, Yayoi, Bunkyo-Ku, Tokyo 113-0032, Japan
| | - Satoru Nagatoishi
- The
Institute of Medical Science, The University
of Tokyo, 4-6-1 Shirokanedai,
Minato-ku, Tokyo 108-8639, Japan
| | - Kouhei Tsumoto
- Department of Chemistry and Biotechnology andDepartment of Bioengineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- The
Institute of Medical Science, The University
of Tokyo, 4-6-1 Shirokanedai,
Minato-ku, Tokyo 108-8639, Japan
| | - Ryosuke Ueki
- Department of Chemistry and Biotechnology andDepartment of Bioengineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology andDepartment of Bioengineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Goyal P, Doval DC, Agarwal C, Jain P, Chaudhari K, Domadia K, Redhu P, Koyyala VPB, Goel V, Batra U, Talwar V, Bothra S. Current Treatment Approaches for Human Epidermal Growth Factor Receptor 2-Positive Breast Cancer in Adjuvant and Neoadjuvant Settings. Indian J Med Paediatr Oncol 2021. [DOI: 10.1055/s-0041-1729726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
AbstractBreast cancer (BC) is the second most common cancer and the second leading cause of mortality among women globally. Approximately 20 to 25% of BC patients have amplification of the human epidermal growth factor receptor 2 (HER2) genes, a marker of poor prognosis. However, the introduction of anti-HER2-therapies (trastuzumab, followed closely by lapatinib, pertuzumab, trastuzumab emtansine, and neratinib) has changed the natural history of HER2-positive BC and improved the outcome in HER2-positive BC patients. The preeminence of anti-HER2 combination therapy in achieving complete inhibition of the various HER receptor dimers has been demonstrated in clinical studies. However, despite these therapeutic advances, tumors expressing estrogen receptor have poorer responses to targeted therapy and are more likely to relapse. A better understanding of resistance to existing anti-HER2 agents, along with the role played by the microenvironment and of interconnected signaling pathways, can permit tailor-made therapeutic options for each patient. This review aimed to evaluate treatment approaches for BC patients with HER2-positive disease in the adjuvant and neoadjuvant settings, also exploring the possibilities of extended duration of anti-HER2 maintenance therapy.
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Affiliation(s)
- Pankaj Goyal
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | - Dinesh Chandra Doval
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | - Chaturbhuj Agarwal
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | - Parveen Jain
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | - Krushna Chaudhari
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | - Kshitij Domadia
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | - Pallavi Redhu
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | | | - Varun Goel
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | - Ullas Batra
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | - Vineet Talwar
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
| | - Sneha Bothra
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research, New Delhi, India
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Bhushan A, Gonsalves A, Menon JU. Current State of Breast Cancer Diagnosis, Treatment, and Theranostics. Pharmaceutics 2021; 13:723. [PMID: 34069059 PMCID: PMC8156889 DOI: 10.3390/pharmaceutics13050723] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 12/11/2022] Open
Abstract
Breast cancer is one of the leading causes of cancer-related morbidity and mortality in women worldwide. Early diagnosis and effective treatment of all types of cancers are crucial for a positive prognosis. Patients with small tumor sizes at the time of their diagnosis have a significantly higher survival rate and a significantly reduced probability of the cancer being fatal. Therefore, many novel technologies are being developed for early detection of primary tumors, as well as distant metastases and recurrent disease, for effective breast cancer management. Theranostics has emerged as a new paradigm for the simultaneous diagnosis, imaging, and treatment of cancers. It has the potential to provide timely and improved patient care via personalized therapy. In nanotheranostics, cell-specific targeting moieties, imaging agents, and therapeutic agents can be embedded within a single formulation for effective treatment. In this review, we will highlight the different diagnosis techniques and treatment strategies for breast cancer management and explore recent advances in breast cancer theranostics. Our main focus will be to summarize recent trends and technologies in breast cancer diagnosis and treatment as reported in recent research papers and patents and discuss future perspectives for effective breast cancer therapy.
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Affiliation(s)
- Arya Bhushan
- Ladue Horton Watkins High School, St. Louis, MO 63124, USA;
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA;
| | - Andrea Gonsalves
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA;
| | - Jyothi U. Menon
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA;
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108
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Ramezani A, Asgari A, Kaviani E, Hosseini A, Ghaderi A. Tatibody, a recombinant antibody with higher internalization potency. Mol Immunol 2021; 135:320-328. [PMID: 33971510 DOI: 10.1016/j.molimm.2021.04.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 03/29/2021] [Accepted: 04/28/2021] [Indexed: 10/21/2022]
Abstract
Using antibody drug conjugates (ADC) which can exclusively bind to their target cells and upon internalization release their toxic agent, is one of the most effective methods for killing tumor cells. Therefore, increasing the internalization rate is an important factor for tumor treatment in this case. The aim of the present study was to develop a new variant of pertuzumab (an anti-ErbB2 humanized antibody) with higher internalization rate that can be a good candidate for the production of ADC. To this end, the Human Immunodeficiency Virus TAT Protein Transduction Domain (TAT-PTD) was replaced into the structure of the pertuzumab. At first, the best site in antibody heavy chain constant region for the replacement of TAT-PTD was predicted through computational methods. Then, the resulting recombinant antibody, of which TAT-PTD was located at amino acid position 130-140 and named Tatibody, was produced in CHO-S cell line. Finally, its physicochemical properties and biological activities were evaluated and compared with pertuzumab. Results showed that the binding ability of Tatibody to the ErbB2 receptor is similar to that of pertuzumab, but its internalization potency is 3.6 fold higher and can be used as a good candidate for ADC construction.
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Affiliation(s)
- Amin Ramezani
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Amir Asgari
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada.
| | - Elina Kaviani
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ahmad Hosseini
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Abbas Ghaderi
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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109
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HER2-Targeted Immunotherapy and Combined Protocols Showed Promising Antiproliferative Effects in Feline Mammary Carcinoma Cell-Based Models. Cancers (Basel) 2021; 13:cancers13092007. [PMID: 33919468 PMCID: PMC8122524 DOI: 10.3390/cancers13092007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 12/25/2022] Open
Abstract
Simple Summary Mammary tumors are common in cats, presenting an aggressive behavior with high tumor recurrence. Therefore, new and efficient therapeutic protocols are urgent. Monoclonal antibodies (mAbs; ADC) are widely used in human breast cancer therapy, inhibiting the HER2 dimerization and leading to cell apoptosis. Furthermore, drug combinations, with tyrosine kinase inhibitors (TKi) are valuable in patients’ therapeutic protocols. In this study, two mAbs, and an ADC, as well as combined protocols between mAbs and mAbs plus lapatinib (TKi) were tested to address if the drugs could be used as new therapeutic options in feline mammary tumors. All the compounds and the combined treatments revealed valuable antiproliferative effects, and a conserved cell death mechanism, by apoptosis, in the feline cell lines, where the mutations found in the extracellular domain of the HER2 suggest no immunotherapy resistance. Abstract Feline mammary carcinoma (FMC) is a highly prevalent tumor, showing aggressive clinicopathological features, with HER2-positive being the most frequent subtype. While, in human breast cancer, the use of anti-HER2 monoclonal antibodies (mAbs) is common, acting by blocking the extracellular domain (ECD) of the HER2 protein and by inducing cell apoptosis, scarce information is available on use these immunoagents in FMC. Thus, the antiproliferative effects of two mAbs (trastuzumab and pertuzumab), of an antibody–drug conjugate compound (T-DM1) and of combined treatments with a tyrosine kinase inhibitor (lapatinib) were evaluated on three FMC cell lines (CAT-MT, FMCm and FMCp). In parallel, the DNA sequence of the her2 ECD (subdomains II and IV) was analyzed in 40 clinical samples of FMC, in order to identify mutations, which can lead to antibody resistance or be used as prognostic biomarkers. Results obtained revealed a strong antiproliferative effect in all feline cell lines, and a synergistic response was observed when combined therapies were performed. Additionally, the mutations found were not described as inducing resistance to therapy in breast cancer patients. Altogether, our results suggested that anti-HER2 mAbs could become useful in the treatment of FMC, particularly, if combined with lapatinib, since drug-resistance seems to be rare.
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110
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The Pan-Immune-Inflammation-Value Predicts the Survival of Patients with Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Advanced Breast Cancer Treated with First-Line Taxane-Trastuzumab-Pertuzumab. Cancers (Basel) 2021; 13:cancers13081964. [PMID: 33921727 PMCID: PMC8073809 DOI: 10.3390/cancers13081964] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/01/2021] [Accepted: 04/16/2021] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Although taxane-trastuzumab-pertuzumab combinations in the first-line treatment setting significantly improved clinical outcomes in patients with Human Epidermal growth factor Receptor 2 positive (HER2+) advanced breast cancer (aBC), their clinical efficacy is highly heterogeneous, and reliable biomarkers of benefit from this treatment are lacking. Different peripheral blood parameters have emerged as prognostic biomarkers in breast cancer, but their predictive role in HER2+ BC patients receiving dual anti-HER2 blockade remains unclear. In this work, we identified the Pan-Immune-Inflammatory Value (PIV), a recently defined parameter, taking into account peripheral blood neutrophil, platelet, monocyte and lymphocyte counts, as an independent predictor of worse OS in patients with HER2+ aBC receiving first line trastuzumab-pertuzumab biochemotherapy. The PIV outperforms other well-known peripheral blood parameters, thus potentially representing a new tool to improve the prognostic stratification of HER2+ aBC patients in a first-line treatment setting. Abstract Different peripheral blood parameters have emerged as prognostic biomarkers in breast cancer (BC), but their predictive role in Human Epidermal growth factor Receptor 2 positive (HER2+) advanced BC (aBC) patients receiving dual anti-HER2 blockade remains unclear. We evaluated the impact of the Pan-Immune-Inflammatory Value (PIV), defined as the product of peripheral blood neutrophil, platelet, and monocyte counts divided by lymphocyte counts, on the prognosis of HER2+ aBC patients treated with first line trastuzumab-pertuzumab-based biochemotherapy. We also evaluated the association between the neutrophil-to-lymphocyte ratio (NLR), the platelet-to-lymphocyte ratio (PLR), and the monocyte to lymphocyte ratio (MLR) and clinical outcomes. Cox regression models were used to estimate the impact of these variables, as well as of other clinically relevant covariates, on patient survival. We included 57 HER2+ aBC patients treated with taxane-trastuzumab-pertuzumab in our Institution. High baseline MLR, PLR, and PIV were similarly predictive of worse PFS at univariate analysis, but only high PIV was associated with a trend toward worse PFS at multivariable analysis. Regarding OS, both high PIV and MLR were associated with significantly worse patient survival at univariate analysis, but only the PIV was statistically significantly associated with worse overall survival at multivariable analysis (HR 7.96; 95% CI: 2.18–29.09). Our study reveals the PIV as a new and potent predictor of OS in HER2+ aBC patients treated with first line trastuzumab-pertuzumab-containing biochemotherapy. Prospective studies are needed to validate this new prognostic parameter in HER2+ aBC.
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111
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Shao Z, Tseng LM, Huang CS, Pang D, Yang Y, Li W, Liao N, Geng C, Zhang Q, Xu B, Liu D, Kwong A. Pertuzumab and trastuzumab as adjuvant treatment for HER2-positive early breast cancer: outcomes in Chinese patients in the APHINITY study. Jpn J Clin Oncol 2021; 51:345-353. [PMID: 33619550 DOI: 10.1093/jjco/hyaa216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The addition of pertuzumab to trastuzumab plus standard chemotherapy as adjuvant therapy following surgery significantly improved invasive disease-free survival (IDFS) in patients with HER2-positive early breast cancer in the multinational randomized APHINITY trial (NCT01358877, BIG 4-11/BO25126/TOC4939G). We analyzed clinical outcomes in the subgroup of patients recruited at Chinese sites. METHODS Patients were randomized to standard adjuvant chemotherapy plus 1 year of trastuzumab with pertuzumab or placebo. Patients recruited in mainland China, Hong Kong and Taiwan are included in this descriptive analysis. RESULTS Chinese patients had similar demographic characteristics to the global population, but a higher proportion had nodal involvement. Although this subgroup analysis was not powered to detect statistical significance, a numerical improvement in IDFS was observed with the addition of pertuzumab to trastuzumab in Chinese patients (hazard ratio, 0.69; 95% confidence interval: 0.39-1.19; 3-year IDFS event-free estimates 92.5% [pertuzumab] and 91.7% [placebo]), which was consistent with the primary analysis of the global population. Further subgroup analyses showed numerical improvements in the Chinese node-positive, hormone receptor-negative and -positive subgroups, although confidence intervals were wide due to the low number of events. The incidence of diarrhea was higher in the pertuzumab arm, and no primary cardiac events occurred in Chinese patients in either arm. CONCLUSIONS Pertuzumab, used in combination with trastuzumab and chemotherapy in APHINITY, is effective as an adjuvant treatment regimen for Chinese patients with HER2-positive early breast cancer in a setting with curative intent. The safety profile in Chinese patients was consistent with that of the global population.
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Affiliation(s)
- Zhimin Shao
- Fudan University, Shanghai Cancer Center, Shanghai, China
| | - Ling-Ming Tseng
- Taipei-Veterans General Hospital, National Yang-Ming University, Taipei, Taiwan
| | - Chiun-Sheng Huang
- National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Da Pang
- Harbin Medical University Cancer Hospital, Harbin, China
| | - Youngsen Yang
- Taichung Veterans General Hospital, Taichung, Taiwan and College of Medicine, China Medical University, Taichung, Taiwan
| | - Wei Li
- The First Hospital of Jilin University, Changchun, China
| | - Ning Liao
- Guangdong General Hospital, Guangzhou, China
| | - Cuizhi Geng
- Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Qingyuan Zhang
- Harbin Medical University Cancer Hospital, Harbin, China
| | - Binghe Xu
- Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Donggeng Liu
- Sun Yatsen University Cancer Hospital, Guangzhou, China
| | - Ava Kwong
- The University of Hong Kong, Hong Kong
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112
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Schick J, Ritchie RP, Restini C. Breast Cancer Therapeutics and Biomarkers: Past, Present, and Future Approaches. Breast Cancer (Auckl) 2021; 15:1178223421995854. [PMID: 33994789 PMCID: PMC8100889 DOI: 10.1177/1178223421995854] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 01/26/2021] [Indexed: 12/11/2022] Open
Abstract
Breast cancer (BC) is the leading cause of cancer death in women and the second-most common cancer. An estimated 281 550 new cases of invasive BC will be diagnosed in women in the United States, and about 43 600 will die during 2021. Continual research has shed light on all disease areas, including tumor classification and biomarkers for diagnosis/prognosis. As research investigations evolve, new classes of drugs are emerging with potential benefits in BC treatment that are covered in this manuscript. The initial sections present updated classification and terminology used for diagnosis and prognosis, which leads to the following topics, discussing the past and present treatments available for BC. Our review will generate interest in exploring the complexity of the cell cycle and its association with cancer biology as part of the plethora of target factors toward developing newer drugs and effective therapeutic management of BC.
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Affiliation(s)
- Jason Schick
- College of Osteopathic Medicine, Michigan State University, Clinton Township, MI, USA
| | - Raquel P Ritchie
- College of Osteopathic Medicine, Michigan State University, Clinton Township, MI, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, USA
| | - Carolina Restini
- College of Osteopathic Medicine, Michigan State University, Clinton Township, MI, USA
- Department of Pharmacology & Toxicology, Michigan State University, East Lansing, MI, USA
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113
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Pinet L, Wang YH, Deville C, Lescop E, Guerlesquin F, Badache A, Bontems F, Morellet N, Durand D, Assrir N, van Heijenoort C. Structural and dynamic characterization of the C-terminal tail of ErbB2: Disordered but not random. Biophys J 2021; 120:1869-1882. [PMID: 33741354 DOI: 10.1016/j.bpj.2021.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 01/23/2023] Open
Abstract
ErbB2 (or HER2) is a receptor tyrosine kinase overexpressed in some breast cancers and associated with poor prognosis. Treatments targeting the receptor extracellular and kinase domains have greatly improved disease outcome in the last 20 years. In parallel, the structures of these domains have been described, enabling better mechanistic understanding of the receptor function and targeted inhibition. However, the ErbB2 disordered C-terminal cytoplasmic tail (CtErbB2) remains very poorly characterized in terms of structure, dynamics, and detailed functional mechanism. Yet, it is where signal transduction is triggered via phosphorylation of tyrosine residues and carried out via interaction with adaptor proteins. Here, we report the first description, to our knowledge, of the ErbB2 disordered tail at atomic resolution using NMR, complemented by small-angle x-ray scattering. We show that although no part of CtErbB2 has any fully populated secondary or tertiary structure, it contains several transient α-helices and numerous transient polyproline II helices, populated up to 20 and 40%, respectively, and low but significant compaction. The presence of some structural elements suggests, along the lines of the results obtained for EGFR (ErbB1), that they may have a functional role in ErbB2's autoregulation processes. In addition, the transient formation of polyproline II helices is compliant with previously suggested interactions with SH3 domains. All in all, our in-depth structural study opens perspectives in the mechanistic understanding of ErbB2.
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Affiliation(s)
- Louise Pinet
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Gif-sur-Yvette, France; Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Ying-Hui Wang
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Gif-sur-Yvette, France; SGS Taiwan LTD, New Taipei City, Taiwan
| | - Célia Deville
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Gif-sur-Yvette, France; IGBMC, University of Strasbourg, CNRS UMR, Illkirch, France
| | - Ewen Lescop
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Françoise Guerlesquin
- LISM, Institut de Microbiologie de la Méditerranée, CNRS and Aix-Marseille University, Marseille, France
| | - Ali Badache
- Centre de Recherche en Cancérologie de Marseille, Aix-Marseille Univ, INSERM, Institut Paoli-Calmettes, CNRS, Marseille, France
| | - François Bontems
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Gif-sur-Yvette, France; Department of Virology, Institut Pasteur, CNRS UMR 3569, Paris, France
| | - Nelly Morellet
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Dominique Durand
- I2BC, Université Paris-Saclay, CNRS UMR 9198, Gif-sur-Yvette, France
| | - Nadine Assrir
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Carine van Heijenoort
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Gif-sur-Yvette, France.
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114
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Hsiao YC, Chen YJJ, Goldstein LD, Wu J, Lin Z, Schneider K, Chaudhuri S, Antony A, Bajaj Pahuja K, Modrusan Z, Seshasayee D, Seshagiri S, Hötzel I. Restricted epitope specificity determined by variable region germline segment pairing in rodent antibody repertoires. MAbs 2021; 12:1722541. [PMID: 32041466 PMCID: PMC7039645 DOI: 10.1080/19420862.2020.1722541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Antibodies from B-cell clonal lineages share sequence and structural properties as well as epitope specificity. Clonally unrelated antibodies can similarly share sequence and specificity properties and are said to be convergent. Convergent antibody responses against several antigens have been described in humans and mice and include different classes of shared sequence features. In particular, some antigens and epitopes can induce convergent responses of clonally unrelated antibodies with restricted heavy (VH) and light (VL) chain variable region germline segment usage without similarity in the heavy chain third complementarity-determining region (CDR H3), a critical specificity determinant. Whether these V germline segment-restricted responses reflect a general epitope specificity restriction of antibodies with shared VH/VL pairing is not known. Here, we investigated this question by determining patterns of antigen binding competition between clonally unrelated antigen-specific rat antibodies from paired-chain deep sequencing datasets selected based solely on VH/VL pairing. We found that antibodies with shared VH/VL germline segment pairings but divergent CDR H3 sequences almost invariably have restricted epitope specificity indicated by shared binding competition patterns. This epitope restriction included 82 of 85 clonally unrelated antibodies with 13 different VH/VL pairings binding in 8 epitope groups in 2 antigens. The corollary that antibodies with shared VH/VL pairing and epitope-restricted binding can accommodate widely divergent CDR H3 sequences was confirmed by in vitro selection of variants of anti-human epidermal growth factor receptor 2 antibodies known to mediate critical antigen interactions through CDR H3. Our results show that restricted epitope specificity determined by VH/VL germline segment pairing is a general property of rodent antigen-specific antibodies.
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Affiliation(s)
- Yi-Chun Hsiao
- Department of Antibody Engineering, Genentech, South San Francisco, CA, USA
| | - Ying-Jiun J Chen
- Department of Molecular Biology, Genentech, South San Francisco, CA, USA
| | - Leonard D Goldstein
- Department of Molecular Biology, Genentech, South San Francisco, CA, USA.,Department of Bioinformatics and Computational Biology, Genentech, South San Francisco, CA, USA
| | - Jia Wu
- Department of Antibody Engineering, Genentech, South San Francisco, CA, USA
| | - Zhonghua Lin
- Department of Antibody Engineering, Genentech, South San Francisco, CA, USA
| | - Kellen Schneider
- Department of Antibody Engineering, Genentech, South San Francisco, CA, USA
| | - Subhra Chaudhuri
- Department of Molecular Biology, Genentech, South San Francisco, CA, USA
| | - Aju Antony
- Department of Molecular Biology, SciGenom Labs, Cochin, India
| | | | - Zora Modrusan
- Department of Molecular Biology, Genentech, South San Francisco, CA, USA
| | - Dhaya Seshasayee
- Department of Antibody Engineering, Genentech, South San Francisco, CA, USA
| | | | - Isidro Hötzel
- Department of Antibody Engineering, Genentech, South San Francisco, CA, USA
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115
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Zhao J, Mohan N, Nussinov R, Ma B, Wu WJ. Trastuzumab Blocks the Receiver Function of HER2 Leading to the Population Shifts of HER2-Containing Homodimers and Heterodimers. Antibodies (Basel) 2021; 10:7. [PMID: 33557368 PMCID: PMC7931022 DOI: 10.3390/antib10010007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/15/2021] [Accepted: 01/27/2021] [Indexed: 11/16/2022] Open
Abstract
HER2, a member of the Erythroblastosis Protein B/Human Epidermal Growth Factor Receptor (ErbB/HER) family of receptor tyrosine kinase, is overexpressed in 20~30% of human breast cancers. Trastuzumab, a HER2-targeted therapeutic monoclonal antibody, was developed to interfere with the homodimerization of HER2 in HER2-overexpressing breast cancer cells, which attenuates HER2-mediated signaling. Trastuzumab binds to the domain IV of the HER2 extracellular domain and does not directly block the dimerization interface of HER2-HER2 molecules. The three-dimensional structures of the tyrosine kinase domains of ErbB/HER family receptors show asymmetrical packing of the two monomers with distinct conformations. One monomer functions as an activator, whereas the other acts as a receiver. Once activated, the receiver monomer phosphorylates the activator or other proteins. Interestingly, in our previous work, we found that the binding of trastuzumab induced phosphorylation of HER2 with the phosphorylation pattern of HER2 that is different from that mediated by epidermal growth factor (EGF) in human epidermal growth factor receptor 2 (HER2)-positive breast cancer. Binding of trastuzumab to HER2 promoted an allosteric effect of HER2, in both tyrosine kinase domain and ectodomain of HER2 although details of allosteric regulation were missing. In this study, we utilized molecular dynamics (MD) simulations to model the allosteric consequences of trastuzumab binding to HER2 homodimers and heterodimers, along with the apo forms as controls. We focused on the conformational changes of HER2 in its monomeric and dimeric forms. The data indicated the apparent dual role of trastuzumab as an antagonist and an agonist. The molecular details of the simulation provide an atomic level description and molecular insight into the action of HER2-targeted antibody therapeutics.
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Affiliation(s)
- Jun Zhao
- Division of Biotechnology Review and Research 1, Office of Biotechnology Products, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA;
- Interagency Oncology Task Force (IOTF) Fellowship: Oncology Product Research/Review Fellow, National Cancer Institute, Bethesda, MD 20892, USA
| | - Nishant Mohan
- Division of Biotechnology Review and Research 1, Office of Biotechnology Products, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA;
| | - Ruth Nussinov
- Basic Science Program, Leidos Biomedical Research, Inc., Cancer and Inflammation Program, National Cancer Institute, Frederick, MD 21702, USA; (R.N.)
| | - Buyong Ma
- Basic Science Program, Leidos Biomedical Research, Inc., Cancer and Inflammation Program, National Cancer Institute, Frederick, MD 21702, USA; (R.N.)
| | - Wen Jin Wu
- Division of Biotechnology Review and Research 1, Office of Biotechnology Products, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA;
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116
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Berdiel-Acer M, Maia A, Hristova Z, Borgoni S, Vetter M, Burmester S, Becki C, Michels B, Abnaof K, Binenbaum I, Bethmann D, Chatziioannou A, Hasmann M, Thomssen C, Espinet E, Wiemann S. Stromal NRG1 in luminal breast cancer defines pro-fibrotic and migratory cancer-associated fibroblasts. Oncogene 2021; 40:2651-2666. [PMID: 33692466 PMCID: PMC8049869 DOI: 10.1038/s41388-021-01719-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 02/10/2021] [Accepted: 02/18/2021] [Indexed: 01/31/2023]
Abstract
HER3 is highly expressed in luminal breast cancer subtypes. Its activation by NRG1 promotes activation of AKT and ERK1/2, contributing to tumour progression and therapy resistance. HER3-targeting agents that block this activation, are currently under phase 1/2 clinical studies, and although they have shown favorable tolerability, their activity as a single agent has proven to be limited. Here we show that phosphorylation and activation of HER3 in luminal breast cancer cells occurs in a paracrine manner and is mediated by NRG1 expressed by cancer-associated fibroblasts (CAFs). Moreover, we uncover a HER3-independent NRG1 signaling in CAFs that results in the induction of a strong migratory and pro-fibrotic phenotype, describing a subtype of CAFs with elevated expression of NRG1 and an associated transcriptomic profile that determines their functional properties. Finally, we identified Hyaluronan Synthase 2 (HAS2), a targetable molecule strongly correlated with NRG1, as an attractive player supporting NRG1 signaling in CAFs.
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Affiliation(s)
- Mireia Berdiel-Acer
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ana Maia
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Faculty of Biosciences, Ruprecht-Karls-University, Heidelberg, Germany
| | - Zhivka Hristova
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Faculty of Biosciences, Ruprecht-Karls-University, Heidelberg, Germany
| | - Simone Borgoni
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Faculty of Biosciences, Ruprecht-Karls-University, Heidelberg, Germany
| | - Martina Vetter
- grid.9018.00000 0001 0679 2801Department of Gynecology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Sara Burmester
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Corinna Becki
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Birgitta Michels
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Khalid Abnaof
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ilona Binenbaum
- grid.7497.d0000 0004 0492 0584Division of Medical Informatics for Translational Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.11047.330000 0004 0576 5395Department of Biology, University of Patras, Patras, Greece ,grid.22459.380000 0001 2232 6894Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece
| | - Daniel Bethmann
- grid.9018.00000 0001 0679 2801Institute of Pathology Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Aristotelis Chatziioannou
- grid.22459.380000 0001 2232 6894Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece ,e-NIOS PC, Kallithea-Athens, Greece
| | - Max Hasmann
- grid.424277.0Roche Diagnostics, Penzberg, Germany
| | - Christoph Thomssen
- grid.9018.00000 0001 0679 2801Department of Gynecology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Elisa Espinet
- grid.7497.d0000 0004 0492 0584Divison of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.482664.aHeidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM), Heidelberg, Germany
| | - Stefan Wiemann
- grid.7497.d0000 0004 0492 0584Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
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117
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Nguyen Thanh T, Nguyen Tran BS, Hoang Thi AP, Tran Binh T, Ba Nguyen T, Le Minh T, Nguyen Vu QH, Dang Cong T. HER2Ile655Val Single Nucleotide Polymorphism Associated with Early-Onset Breast Cancer Susceptibility: A Systematic Review and Meta-Analysis. Asian Pac J Cancer Prev 2021; 22:11-18. [PMID: 33507673 PMCID: PMC8184204 DOI: 10.31557/apjcp.2021.22.1.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Indexed: 01/21/2023] Open
Abstract
Background: Human epidermal growth factor receptor 2 (HER2) plays an important role in the development and progression of breast cancer. To understand the precise association, this meta-analysis was conducted to estimate the association between HER2Ile655Val single nucleotide polymorphism (SNP) and susceptibility to early-onset breast cancer. Methods: A comprehensive database retrieval from PubMed, Embase, Web of Science and Google Scholar was pooled to investigate links between the HER2Ile655Val SNP and risk of breast cancer. Adjusted odds ratios (ORs) with 95% confidence intervals (CIs) were estimated to appraise the association under the additive model (Ile vs. Val), dominant model (Val/Val + Ile/Val vs. Ile/Ile), and recessive model (Val/Val vs. Ile/Val + Ile/Ile). Results: Seventeen relevant studies with 11,749 cases and 8,105 controls were finally included. We found that HER2Ile655Val SNP is associated with an increased risk of breast cancer in an additive and dominant model. In the subgroup analysis with age stratification, a significant association between the HER2 codon 655 SNP and the risk of breast cancer was found in young women in an additive, dominant, and recessive model; conversely, no significant associations were indicated in older women. In the breast cancer subgroup, HER2Ile655Val SNP was significantly associated with younger age women with breast cancer in the dominant model. In contrast, no association between the HER2 codon 655 SNP and age was found in control populations. Conclusion: Our findings suggest that the Val allele in HER2 codon 655 SNP is strongly associated with breast cancer susceptibility in the young female population and is also significantly associated with younger age in women with breast cancer. HER2Ile655Val SNP might be a susceptibility factor that favours early-onset breast cancer.
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Affiliation(s)
- Tung Nguyen Thanh
- Institute of Biomedicine, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam.,Faculty of Basic Science, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Bao Song Nguyen Tran
- Department of Histology, Embryology, Pathology and Forensic, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Ai Phuong Hoang Thi
- Faculty of Basic Science, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Thang Tran Binh
- Faculty of Public Health, Hue University of Medicince and Pharmacy, Hue university, 6 Ngo Quyen Street, Hue, Vietnam
| | - Thong Ba Nguyen
- Department of Medical Bioscience, Soonchunhyang University Hospital Bucheon, Bucheon 14584, Republic of Korea
| | - Tam Le Minh
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Quoc Huy Nguyen Vu
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
| | - Thuan Dang Cong
- Department of Histology, Embryology, Pathology and Forensic, Hue University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen Street, Hue, Vietnam
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118
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Khare P, Sun W, Ramakrishnan S, Swiercz R, Hao G, Lo ST, Nham K, Sun X, Ober RJ, Ward ES. Selective depletion of radiolabeled HER2-specific antibody for contrast improvement during PET. MAbs 2021; 13:1976705. [PMID: 34592895 PMCID: PMC8489906 DOI: 10.1080/19420862.2021.1976705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/22/2021] [Accepted: 09/01/2021] [Indexed: 12/20/2022] Open
Abstract
The prolonged in vivo persistence of antibodies results in high background and poor contrast during their use as molecular imaging agents for positron emission tomography (PET). We have recently described a class of engineered Fc fusion proteins that selectively deplete antigen-specific antibodies without affecting the levels of antibodies of other specificities. Here, we demonstrate that these Fc fusions (called Seldegs, for selective degradation) can be used to clear circulating, radiolabeled HER2-specific antibody during diagnostic imaging of HER2-positive tumors in mice. The analyses show that Seldegs have considerable promise for the reduction of whole-body exposure to radiolabel and improvement of contrast during PET.
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Affiliation(s)
- Priyanka Khare
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, Texas, USA
| | - Wei Sun
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, Texas, USA
| | - Sreevidhya Ramakrishnan
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, Texas, USA
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
| | - Rafal Swiercz
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, Texas, USA
- Cancer Sciences Unit, Centre for Cancer Immunology, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Guiyang Hao
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Su-Tang Lo
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Kien Nham
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Xiankai Sun
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Raimund J. Ober
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, Texas, USA
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
- Cancer Sciences Unit, Centre for Cancer Immunology, Faculty of Medicine, University of Southampton, Southampton, UK
| | - E. Sally Ward
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, Texas, USA
- Cancer Sciences Unit, Centre for Cancer Immunology, Faculty of Medicine, University of Southampton, Southampton, UK
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, Texas, USA
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119
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Role of Her-2 in Gastrointestinal Tumours beyond Gastric Cancer: A Tool for Precision Medicine. GASTROINTESTINAL DISORDERS 2020. [DOI: 10.3390/gidisord3010001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Gastrointestinal (GI) tumors account for a quarter of all the cancer burden and a third of the global cancer-related mortality. Among them, some cancers retain a dismal prognosis; therefore, newer and innovative therapies are urgently needed in priority disease areas of high-unmet medical need. In this context, HER2 could be a relevant prognostic and predictive biomarker acting as a target for specific drugs. However, if the role of HER2 has been object of investigation for several years in gastric cancer, it is not well established in other GI malignancies. The aim of this narrative review was to portray the current landscape of the potential role of HER2 as a predictive biomarker for GI tumors beyond gastric cancer. In colon cancer, the benefit from anti-HER2 therapies is less clear than in gastric neoplasms for the lack of controlled studies. Pancreatic, biliary tract adenocarcinomas and hepatocarcinoma may derive a less clear clinical benefit by using anti-HER2 agents in HER2 positive tumors. Overall, the results are promising and seem to suggest that the integration of multiple modalities of therapies can optimize the cancer care. However, further prospective trials are needed to validate the use of personalized targeted therapies in this field.
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Vatansever EC, Kang J, Tuley A, Ward ES, Liu WR. An optimal "Click" formulation strategy for antibody-drug conjugate synthesis. Bioorg Med Chem 2020; 28:115808. [PMID: 33071032 PMCID: PMC7736079 DOI: 10.1016/j.bmc.2020.115808] [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: 08/07/2020] [Revised: 09/24/2020] [Accepted: 10/01/2020] [Indexed: 11/19/2022]
Abstract
As a versatile reaction for bioconjugation, Cu(I)-catalyzed alkyne-azide cycloaddition (CuAAC) has enormous potential in the synthesis of antibody-drug conjugates (ADCs). In order to optimize CuAAC-based ADC synthesis, we characterized kinetically different formulation processes by mimicking ADC synthesis using small molecules and subsequently revealed unique kinetic behaviors of different combinations of alkyne and azide conditions. Our results indicate that under ADC synthesis conditions, for an alkyne-containing drug, its concentration has minimal impact on the reaction rate when an antibody has a non-metal-chelating azide but is proportional to concentration when an antibody contains a metal-chelating azide; however, for an alkyne-containing antibody, the ADC synthesis rate is proportional to the concentration of a drug with a non-metal-chelating azide but displays almost no dependence on drug concentration with a metal-chelating azide. Based on our results, we designed and tested an optimal "click" formulation strategy that allowed rapid and cost-effective synthesis of a new ADC.
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Affiliation(s)
- Erol C Vatansever
- The Texas A&M Drug Discovery Laboratory, Department of Chemistry, Texas A&M University, College Station, TX 77843, United States
| | - Jeffrey Kang
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, TX 77843, USA
| | - Alfred Tuley
- The Texas A&M Drug Discovery Laboratory, Department of Chemistry, Texas A&M University, College Station, TX 77843, United States
| | - E Sally Ward
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, TX 77843, USA; Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX 77807, USA; Centre for Cancer Immunology, Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton SO16 4YD, UK.
| | - Wenshe Ray Liu
- The Texas A&M Drug Discovery Laboratory, Department of Chemistry, Texas A&M University, College Station, TX 77843, United States; Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA; Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M University, College Station, TX 77843, USA.
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EGFR-Binding Peptides: From Computational Design towards Tumor-Targeting of Adeno-Associated Virus Capsids. Int J Mol Sci 2020; 21:ijms21249535. [PMID: 33333826 PMCID: PMC7765298 DOI: 10.3390/ijms21249535] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/04/2020] [Accepted: 12/06/2020] [Indexed: 01/24/2023] Open
Abstract
The epidermal growth factor receptor (EGFR) plays a central role in the progression of many solid tumors. We used this validated target to analyze the de novo design of EGFR-binding peptides and their application for the delivery of complex payloads via rational design of a viral vector. Peptides were computationally designed to interact with the EGFR dimerization interface. Two new peptides and a reference (EDA peptide) were chemically synthesized, and their binding ability characterized. Presentation of these peptides in each of the 60 capsid proteins of recombinant adeno-associated viruses (rAAV) via a genetic based loop insertion enabled targeting of EGFR overexpressing tumor cell lines. Furthermore, tissue distribution and tumor xenograft specificity were analyzed with systemic injection in chicken egg chorioallantoic membrane (CAM) assays. Complex correlations between the targeting of the synthetic peptides and the viral vectors to cells and in ovo were observed. Overall, these data demonstrate the potential of computational design in combination with rational capsid modification for viral vector targeting opening new avenues for viral vector delivery and specifically suicide gene therapy.
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Guan J, Zhang M. Cardiotoxicity of anthracycline-free targeted oncological therapies in HER2-positive breast cancer. Oncol Lett 2020; 21:100. [PMID: 33376533 PMCID: PMC7751370 DOI: 10.3892/ol.2020.12361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/06/2020] [Indexed: 12/21/2022] Open
Abstract
Anthracycline drugs are considered to be pivotal drugs in numerous chemotherapy regimens for breast cancer. However, the cardiotoxicity associated with the treatment is an important issue to be addressed. With the emergence of increasingly diverse antitumor drugs, anthracycline-free therapies are able to reduce the cardiotoxicity caused by anthracycline drugs while ensuring that a therapeutic effect is achieved. In the present review, anthracycline-free oncological therapy regimens for the treatment of patients with human epidermal growth factor receptor 2 (HER2)-positive breast cancer and the associated cardiovascular toxicity are discussed, as well as some monitoring strategies. It is recommended that patients with HER2-positive breast cancer patients should receive adjuvant chemotherapy with single or dual-targeted therapy, with or without endocrine therapy according to the hormone receptor status determined by immunohistochemical examination. The main side effects of targeted therapy include cardiac dysfunction, hypertension and arrhythmia. According to individual risk stratification, it is recommended that patients should be periodically monitored using echocardiography, electrocardiography and serum markers, to enable the timely detection of the cardiovascular adverse reactions associated with tumor treatment, thereby preventing the morbidity and mortality caused by the cardiotoxicity of these drugs.
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Affiliation(s)
- Jingyuan Guan
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Mei Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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Hua G, Bergon A, Cauchy P, Kahn-Perlès B, Bertucci F, Birnbaum D, Benkirane-Jessel N, Imbert J. ERBB2b mRNA isoform encodes a nuclear variant of the ERBB2 oncogene in breast cancer. J Cell Biochem 2020; 121:4870-4886. [PMID: 32628295 DOI: 10.1002/jcb.29762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 05/05/2020] [Indexed: 11/10/2022]
Abstract
The presence of nuclear ERBB2 receptor-type tyrosine kinase is one of the causes of the resistance to membrane ERBB2-targeted therapy in breast cancers. It has been previously reported that this nuclear location arises through at least two different mechanisms: proteolytic shedding of the extracellular domain of the full-length receptor and translation of the messenger RNA (mRNA)-encoding ERBB2 from internal initiation codons. Here, we report a new mechanism and function where a significant portion of nuclear ERBB2 results from the translation of the variant ERBB2 mRNA under the transcriptional control of a distal promoter that is actively used in breast cancer cells. We show that both membrane ERBB2a and nuclear ERBB2b isoforms are prevalently expressed in breast cancer cell lines and carcinoma samples. The ERBB2b isoform, which is translated from mRNA variant 2, can directly translocate into the nucleus due to the lack of the signal peptide which is required for an intermediate membrane location. Small interfering RNA-mediated gene silencing showed that ERBB2b can repress ERBB2a expression, encoded by variant 1, whereas ERBB2a activates ERBB2b. Nuclear ERBB2 binding to its own promoter was revealed by chromatin immunoprecipitation assay. Altogether, our results provide new insights into the origin and function of nuclear ERBB2 where it can participate at the same time in a positive or a negative feedback autoregulatory loop, dependent on which of its promoters this bona fide transcription factor is acting. They also provide a new understanding for the resistance to therapies targeting the membrane-anchored ERBB2 in breast cancer.
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Affiliation(s)
- Guoqiang Hua
- INSERM UMR1090 TAGC, Aix-Marseille University, Marseille, France
- INSERM UMR1260, RNM, FMTS, Strasbourg, France
- Faculté de Chirurgie Dentaire de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Aurélie Bergon
- INSERM UMR1090 TAGC, Aix-Marseille University, Marseille, France
| | - Pierre Cauchy
- INSERM UMR1090 TAGC, Aix-Marseille University, Marseille, France
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | | | - François Bertucci
- Laboratoire d'Oncologie Prédictive, CRCM, CNRS UMR 7258, INSERM U1068, Institut Paoli-Calmettes, Aix-Marseille University, Marseille, France
| | - Daniel Birnbaum
- Laboratoire d'Oncologie Prédictive, CRCM, CNRS UMR 7258, INSERM U1068, Institut Paoli-Calmettes, Aix-Marseille University, Marseille, France
| | - Nadia Benkirane-Jessel
- INSERM UMR1260, RNM, FMTS, Strasbourg, France
- Faculté de Chirurgie Dentaire de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Jean Imbert
- INSERM UMR1090 TAGC, Aix-Marseille University, Marseille, France
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Berg T, Jensen MB, Jakobsen EH, Al-Rawi S, Kenholm J, Andersson M. Neoadjuvant chemotherapy and HER2 dual blockade including biosimilar trastuzumab (SB3) for HER2-positive early breast cancer: Population based real world data from the Danish Breast Cancer Group (DBCG). Breast 2020; 54:242-247. [PMID: 33186804 PMCID: PMC7670201 DOI: 10.1016/j.breast.2020.10.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Dual blockade with trastuzumab and pertuzumab combined with neoadjuvant chemotherapy (NACT) has been increasingly used for HER2-positive tumours >2 cm and/or with positive axillary lymph nodes in order to evaluate pathologic response and obtain better surgical management. SB3 is a registered biosimilar trastuzumab approved following a phase III trial demonstrating similar efficacy in the neoadjuvant setting as trastuzumab. However, the study was done without pertuzumab. METHOD The database of the Danish Breast Cancer Group was used to extract data on all patients who started NACT with SB3 and pertuzumab between September 1, 2018 and August 31, 2019. The primary endpoint was pathological complete response (pCR) rate. RESULTS In total 215 patients received NACT and dual blockade. The median age was 55 (24-81). NACT used was cyclophosphamide and epirubicin followed by weekly paclitaxel (62% on six cycles, 35% on eight cycles) or other chemotherapy followed by weekly paclitaxel (3%). Overall, 56% of patients achieved pCR. 60 of 88 node-positive patients pre-NACT achieved ypN0(i-) after neoadjuvant treatment. pCR rate was significantly associated with estrogen receptor status and malignancy grade. An association with CEP17/HER2-ratio was assessed. CONCLUSION Real world data on dual blockade with SB3 and pertuzumab in combination with NACT in a nationwide population-based study show a pCR rate comparable to that seen in previous clinical studies.
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Affiliation(s)
- Tobias Berg
- Department of Oncology, University Hospital Copenhagen, Rigshospitalet, Juliane Maries Vej 5, 2100, Copenhagen, Denmark; Danish Breast Cancer Group, Department of Oncology, University Hospital Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Maj-Britt Jensen
- Danish Breast Cancer Group, Department of Oncology, University Hospital Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Erik H Jakobsen
- Department of Oncology, Sygehus Lillebælt, Beriderbakken 4, 7100, Vejle, Denmark
| | - Sami Al-Rawi
- Department of Oncology, Region Zealand, Ringstedgade 61, 4700, Næstved, Denmark
| | - Julia Kenholm
- Department of Oncology, Hospital Unit West, Gl. Landevej 61, 7400, Herning, Denmark
| | - Michael Andersson
- Department of Oncology, University Hospital Copenhagen, Rigshospitalet, Juliane Maries Vej 5, 2100, Copenhagen, Denmark
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125
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Boudy AS, Ferrier C, Selleret L, Zilberman S, Arfi A, Sussfeld J, Gligorov J, Richard S, Bendifallah S, Chabbert-Buffet N, Touboul C, Daraï E. Prognosis of HER2-positive pregnancy-associated breast cancer: Analysis from the French CALG (Cancer Associé à La Grossesse) network. Breast 2020; 54:311-318. [PMID: 33271423 PMCID: PMC7711283 DOI: 10.1016/j.breast.2020.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION The prevalence of pregnancy-associated breast cancer is increasing. HER2-positive breast cancers typically have a poor prognosis. The objective of our study was to compare the prognosis of patients with HER2-positive breast cancer diagnosed during pregnancy (HER2-positive BCP) to young women diagnosed with HER2-positive breast cancer outside of pregnancy (HER2 non-BCP). METHODS Data of patients managed for invasive breast carcinoma between January 2005 and 2020 were retrospectively collected from the database of Tenon University Hospital (Paris, France), part of the "Cancer lié à la Grossesse" network. RESULTS Fifty-one patients with HER2-positive BCP were matched on age at diagnosis with 51 HER2-positive non-BCP patients. Locally advanced disease with axillary lymph node involvement were frequent. Tumors were frequently aggressive with high grade (p = 0.57) and high Ki67 (p = 0.15). Among the HER2-positive BCP patients, the mean term at diagnosis was 19.3 week of gestation (WG). Eighty-four percent of the patients continued their pregnancy with a mean term at delivery of 34.2WG. Chemotherapy modalities differed between the two groups: neoadjuvant chemotherapy was more frequent in the HER2-positive BCP group (p = 0.03) and adjuvant chemotherapy more frequent in the HER2 non-BCP group (p = 0.009). The recurrence rate was 10% (n = 5) and 18% (n = 9) in the HER2-positive BCP and HER2 non-BCP groups, respectively, p = 0.25. Breast cancer-free survival was poorer in the HER2-positive BCP group with earlier recurrence, p = 0.008. No difference in type of recurrence was found between the groups (p = 0.58). CONCLUSION This matched case-control study implies that patients with HER2-positive BCP still have a poorer prognosis than non-pregnant HER-positive patients.
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Affiliation(s)
- Anne-Sophie Boudy
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France.
| | - Clément Ferrier
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France
| | - Lise Selleret
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France
| | - Sonia Zilberman
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France
| | - Alexandra Arfi
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France
| | - Julie Sussfeld
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France
| | - Joseph Gligorov
- Centre CALG (Cancer Associé à La Grossesse), France; Department of Oncology, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne Université, Institut Universitaire de Cancérologie (IUC), France; UMRS-938 4, Faculté de Médecine Sorbonne Université, France
| | - Sandrine Richard
- Centre CALG (Cancer Associé à La Grossesse), France; Department of Oncology, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne Université, Institut Universitaire de Cancérologie (IUC), France; UMRS-938 4, Faculté de Médecine Sorbonne Université, France
| | - Sofiane Bendifallah
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France; UMRS-938 4, Faculté de Médecine Sorbonne Université, France
| | - Nathalie Chabbert-Buffet
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France; UMRS-938 4, Faculté de Médecine Sorbonne Université, France
| | - Cyril Touboul
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France; UMRS-938 4, Faculté de Médecine Sorbonne Université, France
| | - Emile Daraï
- Department of Gynaecology and Obstetrics, Tenon University Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), Sorbonne University, Institut Universitaire de Cancérologie (IUC), France; Centre CALG (Cancer Associé à La Grossesse), France; UMRS-938 4, Faculté de Médecine Sorbonne Université, France
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Luca SD, Verdoliva V, Saviano M. Peptide Ligands Specifically Targeting HER2 Receptor and the Role Played by a Synthetic Model System of the Receptor Extracellular Domain: Hypothesized Future Perspectives. J Med Chem 2020; 63:15333-15343. [PMID: 33226807 DOI: 10.1021/acs.jmedchem.0c01340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A short (Fab)trastuzumab-derived peptide specific for HER2 receptor was identified. Its affinity for the model system HER2-DIVMP was found in a nanomolar range. The structural determinants responsible for the interaction between this ligand (A9) and HER2-DIVMP were investigated by both computational and NMR analysis. Next, the possibility of using A9 as HER2- specific probe for the nuclear medicine imaging was evaluated by conjugating A9 with the DTPA chelator and radiolabeling it with 111In. The developed probe retained a nanomolar affinity to HER2-overexpressing cancer cells, however, some unspecific binding also occurred. The peptide internalization into cells by receptor-mediated endocytosis was also studied. Future perspectives are aimed at using A9 as a probe for molecular imaging diagnostics as well as active targeting of anticancer drugs. Lead structure optimization is needed to minimize the percentage of A9 unspecific binding and to increase the binding affinity to the receptor.
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Affiliation(s)
- Stefania De Luca
- Institute of Biostructures and Bioimaging, National Research Council, 80134 Naples, Italy
| | - Valentina Verdoliva
- Institute of Biostructures and Bioimaging, National Research Council, 80134 Naples, Italy
| | - Michele Saviano
- Institute of Crystallography, National Research Council, 70126 Bari, Italy
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Dormann C. Metastatic Human Epidermal Growth Factor Receptor 2-Positive Breast Cancer: Current Treatment Standards and Future Perspectives. Breast Care (Basel) 2020; 15:570-578. [PMID: 33447230 DOI: 10.1159/000512328] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 10/14/2020] [Indexed: 01/27/2023] Open
Abstract
Background The basis of improved systemic therapy for inoperable or metastatic human epidermal growth factor receptor 2 (HER2)-positive breast cancer is formed by HER2-targeting monoclonal antibodies. Dual HER2 blockade with pertuzumab and trastuzumab in combination with docetaxel in previously untreated patients, and trastuzumab emtansine (T-DM1, an antibody-drug conjugate [ADC] consisting of trastuzumab, a linker and a cytotoxic payload) after prior trastuzumab therapy have demonstrated progression-free survival (PFS) and overall survival (OS) superior to what was achieved with the previous treatment routine. Therefore, pertuzumab and trastuzumab with chemotherapy (preferably with a taxane) and T-DM1 are considered the current standard of care in the first- and second-line settings, respectively. For later lines of therapy, no uniformly recognized standard of care has been defined. Accepted options include treatment with trastuzumab beyond progression, in combination with a broad variety of single-agent chemotherapies used sequentially, or lapatinib (an HER2-targeting tyrosine kinase inhibitor [TKI]) in combination with either trastuzu-mab or capecitabine. However, most of these options have not been formally tested in patients receiving the current standard of care therapy for metastatic disease. Summary In patients previously treated with today's standard of care, including a significant subgroup with untreated or progressing brain metastases, the combination of tucatinib, a novel HER2-targeting TKI, with trastuzumab and capecitabine, demonstrates a clinically meaningful improvement in PFS and OS when compared to placebo with trastuzumab and capecitabine. Neratinib, another HER2 TKI, in combination with capecitabine, compared to lapatinib and capecitabine, as well as margetuximab, an HER2-directed monoclonal antibody with a fragment c (Fc) domain engineered to enhance immune activation, compared to trastuzumab, both combined with the investigator's choice of chemotherapy, showed a statistically significantly longer PFS. However, not all patients in the respective trials had received pertuzumab and T-DM1 prior to enrollment and, so far, no improvement in OS has been demonstrated. After a median of 6 prior lines of therapy, trastuzumab deruxtecan (T-DXd), a novel ADC, showed a meaningful overall response and PFS. Although the safety profile was generally manageable, treatment-related interstitial lung disease (ILD) might pose a challenge in routine practice. Pyrotinib, another HER2 TKI, was evaluated in combination with capecitabine in patients after prior exposure to trastuzumab when pertuzumab and T-DM1 were not available. In this setting, PFS was better than with lapatinib and capecitabine. Key Messages In 2020, pertuzumab and trastuzumab with taxane-based chemotherapy in the first line, and T-DM1 in the second line, remain the standard of care. Tucatinib, neratinib, margetuximab, and T-DXd expand the armamentarium for treatment beyond the second line. Pyrotinib might be another option, especially for patients, who do not have access to pertuzumab and T-DM1.
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Affiliation(s)
- Clemens Dormann
- Interne I: Medizinische Onkologie und Hämatologie, Ordensklinikum Linz Barmherzige Schwestern, Linz, Austria
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128
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Pan PC, Magge RS. Mechanisms of EGFR Resistance in Glioblastoma. Int J Mol Sci 2020; 21:E8471. [PMID: 33187135 PMCID: PMC7696540 DOI: 10.3390/ijms21228471] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/04/2020] [Accepted: 11/09/2020] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma (GBM) is the most common primary malignant brain tumor in adults. Despite numerous efforts to target epidermal growth factor receptor (EGFR), commonly dysregulated in GBM, approaches directed against EGFR have not achieved the same degree of success as seen in other tumor types, particularly as compared to non-small cell lung cancer (NSCLC). EGFR alterations in glioblastoma lie primarily in the extracellular domain, unlike the kinase domain alterations seen in NSCLC. Small molecule inhibitors are difficult to develop for the extracellular domain. Monoclonal antibodies can be developed to target the extracellular domain but must contend with the blood brain barrier (BBB). We review the role of EGFR in GBM, the history of trialed treatments, and the potential paths forward to target the pathway that may have greater success.
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Affiliation(s)
- Peter C. Pan
- Division of Neuro-Oncology, NewYork-Presbyterian/Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Rajiv S. Magge
- Division of Neuro-Oncology, NewYork-Presbyterian/Weill Cornell Medicine, New York, NY 10021, USA;
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129
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Mohanan A, Melge AR, Mohan CG. Predicting the Molecular Mechanism of EGFR Domain II Dimer Binding Interface by Machine Learning to Identify Potent Small Molecule Inhibitor for Treatment of Cancer. J Pharm Sci 2020; 110:727-737. [PMID: 33058896 DOI: 10.1016/j.xphs.2020.10.015] [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: 07/01/2020] [Revised: 09/25/2020] [Accepted: 10/07/2020] [Indexed: 10/23/2022]
Abstract
Epidermal growth factor receptor (EGFR) is a transmembrane druggable target controlling cellular differentiation, proliferation, migration, survival and invasion. EGFR activation mainly occurs by its homo/hetro dimerization molecular phenomenon leading to tumor development and invasion. Several tyrosine kinase based inhibitors were discovered as potent anti-cancer drugs. However, mutations in its kinase domain confer resistance to most of these drugs. To overcome this drug resistance, development of small molecule inhibitors disrupting the EGFR Domain II dimer binding by machine learning methods are promising. Based on this insight, a structure-based drug repurposing strategy was adopted to repurpose the existing FDA approved drugs in blocking the EGFR Domain II mediated dimerization. We identified five best repurposed drug molecules showing good binding affinity at its key arm-cavity dimer interface residues by different machine learning methods. The molecular mechanisms of action of these repurposed drugs were computationally validated by molecular electrostatics potential mapping, point mutations at the dimer arm-cavity binding interface, molecular docking and receptor interaction studies. The present machine learning strategy thus forms the basis of identifying potent and putative small molecule drugs for the treatment of different types of cancer.
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Affiliation(s)
- Arathi Mohanan
- Computational Biology and Bioinformatics Lab, Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, 682 041 India
| | - Anu R Melge
- Computational Biology and Bioinformatics Lab, Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, 682 041 India
| | - C Gopi Mohan
- Computational Biology and Bioinformatics Lab, Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, 682 041 India.
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130
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Wilk P, Wątor E, Weiss MS. Prolidase - A protein with many faces. Biochimie 2020; 183:3-12. [PMID: 33045291 DOI: 10.1016/j.biochi.2020.09.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/31/2020] [Accepted: 09/15/2020] [Indexed: 12/21/2022]
Abstract
Prolidase is a metal-dependent peptidase specialized in the cleavage of dipeptides containing proline or hydroxyproline on their C-termini. Prolidase homologues are found in all kingdoms of life. The importance of prolidase in human health is underlined by a rare hereditary syndrome referred to as Prolidase Deficiency. A growing number of studies highlight the importance of prolidase in various other human conditions, including cancer. Some recent studies link prolidase's activity-independent regulatory role to tumorigenesis. Furthermore, the enzyme or engineered variants have some applications in biotechnology. In this short review, we aim to highlight different aspects of the protein the importance of which is increasingly recognized over the last years.
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Affiliation(s)
- Piotr Wilk
- Malopolska Centre of Biotechnology, Jagiellonian University, ul. Gronostajowa 7a, 30-387 Krakow, Poland.
| | - Elżbieta Wątor
- Malopolska Centre of Biotechnology, Jagiellonian University, ul. Gronostajowa 7a, 30-387 Krakow, Poland
| | - Manfred S Weiss
- Macromolecular Crystallography, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
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131
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Gaviraghi M, Rabellino A, Andolfo A, Brand M, Brombin C, Bagnato P, De Feudis G, Raimondi A, Locatelli A, Tosoni D, Mazza D, Gianni L, Tonon G, Yarden Y, Tacchetti C, Daniele T. Direct stimulation of ERBB2 highlights a novel cytostatic signaling pathway driven by the receptor Thr 701 phosphorylation. Sci Rep 2020; 10:16906. [PMID: 33037285 PMCID: PMC7547737 DOI: 10.1038/s41598-020-73835-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 09/16/2020] [Indexed: 11/19/2022] Open
Abstract
ERBB2 is a ligand-less tyrosine kinase receptor expressed at very low levels in normal tissues; when overexpressed, it is involved in malignant transformation and tumorigenesis in several carcinomas. In cancer cells, ERBB2 represents the preferred partner of other members of the ERBB receptor family, leading to stronger oncogenic signals, by promoting both ERK and AKT activation. The identification of the specific signaling downstream of ERBB2 has been impaired by the lack of a ligand and of an efficient way to selectively activate the receptor. In this paper, we found that antibodies (Abs) targeting different epitopes on the ERBB2 extracellular domain foster the activation of ERBB2 homodimers, and surprisingly induce a unique cytostatic signaling cascade promoting an ERK-dependent ERBB2 Thr701 phosphorylation, leading to AKT de-phosphorylation, via PP2A Ser/Thr phosphatases. Furthermore, the immunophilin Cyclophilin A plays a crucial role in this pathway, acting as a negative modulator of AKT de-phosphorylation, possibly by competing with Ser/Thr phosphatases for binding to AKT. Altogether, our data show that Ab recognizing ERBB2 extracellular domain function as receptor agonists, promoting ERBB2 homodimer activation, leading to an anti-proliferative signaling. Thus, the ultimate outcome of ERBB2 activity might depend on the dimerization status: pro-oncogenic in the hetero-, and anti-oncogenic in the homo-dimeric form.
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Affiliation(s)
- Marco Gaviraghi
- Division of Experimental Oncology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 60, 20132, Milan, Italy
| | - Andrea Rabellino
- Department of Experimental Medicine, University of Genoa, via De Toni 14, 16132, Genoa, Italy.,QIMR Berghofer Medical Research Institute, Brisbane, QLD, 4029, Australia
| | - Annapaola Andolfo
- Protein Microsequencing Facility, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 60, 20132, Milan, Italy
| | - Matthias Brand
- Experimental Imaging Centre, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 58, 20132, Milan, Italy.,CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Chiara Brombin
- University Centre for Statistics in the Biomedical Sciences, Vita-Salute San Raffaele University, via Olgettina 58, 20132, Milan, Italy
| | - Paola Bagnato
- Department of Experimental Medicine, University of Genoa, via De Toni 14, 16132, Genoa, Italy
| | - Giuseppina De Feudis
- Experimental Imaging Centre, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 58, 20132, Milan, Italy
| | - Andrea Raimondi
- Experimental Imaging Centre, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 58, 20132, Milan, Italy
| | - Alberta Locatelli
- Department of Oncology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 60, 20132, Milan, Italy
| | - Daniela Tosoni
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20100, Milan, Italy
| | - Davide Mazza
- Experimental Imaging Centre, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 58, 20132, Milan, Italy
| | - Luca Gianni
- Department of Oncology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 60, 20132, Milan, Italy
| | - Giovanni Tonon
- Division of Experimental Oncology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 60, 20132, Milan, Italy.,Center for Translational Genomics and Bioinformatics, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 60, 20132, Milan, Italy
| | - Yosef Yarden
- Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Carlo Tacchetti
- Experimental Imaging Centre, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 58, 20132, Milan, Italy. .,Vita-Salute San Raffaele University, via Olgettina 58, 20132, Milan, Italy.
| | - Tiziana Daniele
- Department of Experimental Medicine, University of Genoa, via De Toni 14, 16132, Genoa, Italy. .,Experimental Imaging Centre, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, via Olgettina 58, 20132, Milan, Italy.
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132
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New insights into affinity proteins for HER2-targeted therapy: Beyond trastuzumab. Biochim Biophys Acta Rev Cancer 2020; 1874:188448. [PMID: 33039514 DOI: 10.1016/j.bbcan.2020.188448] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/06/2020] [Accepted: 10/06/2020] [Indexed: 12/31/2022]
Abstract
Human epidermal growth factor receptor 2 (HER2) is known as a potential target for both cancer treatment and diagnosis. One of the most interesting HER2-targeted therapeutics is an affinity protein which selectively recognizes and binds to a defined target. Trastuzumab is a monoclonal antibody which has been approved as the first affinity proteins for treatment of some HER2-positive cancers including breast cancer. Despite initial response to trastuzumab, the majority of patients with metastatic HER2-positive breast cancer still show resistance to the therapy. Recently, various anti-HER2 affinity proteins, including antibodies, antibody fragments (e.g., Fab and scFv) and other protein scaffolds (e.g., affibody and DARPin), alone or fused/conjugated with therapeutic agents (e.g., proteins, drugs and radioisotopes) have been developed to overcome the trastuzumab resistance. Here, we review these engineered affinity proteins which are either clinically approved or under evaluation. Modern technologies and future prospects for their clinical applications in cancer treatment are also discussed.
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133
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Kaumaya PTP, Guo L, Overholser J, Penichet ML, Bekaii-Saab T. Immunogenicity and antitumor efficacy of a novel human PD-1 B-cell vaccine (PD1-Vaxx) and combination immunotherapy with dual trastuzumab/pertuzumab-like HER-2 B-cell epitope vaccines (B-Vaxx) in a syngeneic mouse model. Oncoimmunology 2020; 9:1818437. [PMID: 33117602 PMCID: PMC7553530 DOI: 10.1080/2162402x.2020.1818437] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Therapeutic blockade of PD-1/PD-L1 signaling with monoclonal antibodies (mAbs) has shown clinical success and activity across a broad set of cancer subtypes. However, monotherapy with PD-1/PD-L1 inhibitors are only effective in a subset of patients and ongoing studies show efficacy of treatment depends on a combinatorial approach. Contrary to mAbs chimeric B-cell cancer vaccines incorporating a “promiscuous” T-cell epitope have the advantage of producing a polyclonal B-cell antibody that can potentially induce memory B- and T-cell responses, while reducing immune evasion and suppression. Here, we describe a novel PD-1 B-cell peptide epitope vaccine (amino acid 92–110; PD1-Vaxx) linked to a measles virus fusion peptide (MVF) amino acid 288–302 via a four amino acid residue (GPSL) emulsified in Montanide ISA 720VG that aims to induce the production of polyclonal antibodies that block PD-1 signaling and thus trigger anticancer effects similar to nivolumab. In preclinical studies, the PD1-Vaxx outperformed the standard anti-mouse PD-1 antibody (mAb 29F.1A12) in a mouse model of human HER-2 expressing colon carcinoma. Furthermore, the combination of PD1-Vaxx with combo HER-2 peptide vaccine (B-Vaxx) showed enhanced inhibition of tumor growth in colon carcinoma BALB/c model challenged with CT26/HER-2 cells. The PD-1 or combined vaccines were safe with no evidence of toxicity or autoimmunity.
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Affiliation(s)
- Pravin T P Kaumaya
- Department of Obstetrics & Gynecology.,The Wexner Medical Center and the Arthur G. James Cancer Hospital, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | | | | | - Manuel L Penichet
- Division of Surgical Oncology Department of Surgery, University of California, Los Angeles, CA, USA
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134
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Pharmacokinetics of pertuzumab administered concurrently with trastuzumab in Chinese patients with HER2-positive early breast cancer. Anticancer Drugs 2020; 30:866-872. [PMID: 31305270 DOI: 10.1097/cad.0000000000000808] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In the APHINITY study (NCT01358877, BIG 4-11/BO25126/TOC4939G), pertuzumab added to trastuzumab and chemotherapy significantly improved invasive disease-free survival as adjuvant treatment for patients with HER2-positive early breast cancer. The objective of this analysis was to assess the pharmacokinetics of pertuzumab in combination with trastuzumab in Chinese patients with early breast cancer. Samples for pertuzumab and trastuzumab pharmacokinetic analysis were taken from Chinese patients during cycle 1 of treatment and at steady-state in cycle 10. Noncompartmental analysis was used to estimate minimum and maximum serum concentrations (Cmax and Cmin), area under the concentration-time curve, clearance, and other pharmacokinetic parameters. In 15 patients, mean steady-state Cmax and Cmin pertuzumab serum concentrations (368 ± 177 μg/ml, and 122 ± 47 μg/ml, respectively) were numerically higher than observed previously in a pharmacokinetic analysis of the global population in APHINITY and in patients treated in the metastatic setting. The geometric mean ratio and corresponding 90% confidence interval for trastuzumab Cmax and Cmin in the presence (n = 15) or absence (n = 17) of pertuzumab were 104.6 (91.09-120) and 98.23 (84.58-114), respectively, indicating no apparent impact of pertuzumab on the pharmacokinetics of trastuzumab. Increases in pertuzumab Cmax and Cmin were not associated with an increase in adverse events. The APHINITY Chinese pharmacokinetic substudy analysis supports the dosing regimen for pertuzumab (840 mg loading dose followed by 420 mg maintenance doses every 3 weeks administered by intravenous infusion) in a Chinese HER2-positive early breast cancer patient population.
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135
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Ding X, Gu W, Zhong Y, Hao X, Liu J, Xia S, Luo L, Chen M, Zhang C. A novel HER2-targeting antibody 5G9 identified by large-scale trastuzumab-based screening exhibits potent synergistic antitumor activity. EBioMedicine 2020; 60:102996. [PMID: 32950002 PMCID: PMC7501074 DOI: 10.1016/j.ebiom.2020.102996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 12/12/2022] Open
Abstract
Background Pertuzumab is currently used in combination with trastuzumab as the first-line treatment for HER2-positive metastatic breast cancer. However, pertuzumab was originally developed independently from trastuzumab and was later incidentally found to have synergistic efficacy when combined with trastuzumab, it remains to be seen whether a more potent synergistic efficacy partner exists for trastuzumab. Methods A trastuzumab-based functional assay was used to screen anti-HER2 antibodies harboring trastuzumab-synergistic antitumor activity. The lead candidate 5G9, in combination with trastuzumab, was further characterized for its bioactivities in cell proliferation, cell apoptosis, antigen-antibody endocytosis and HER2-mediated cell signaling pathway blocking. Finally, animal models were used to evaluate the in vivo synergistic antitumor efficacy of 5G9 in combination with trastuzumab. Findings Compared to pertuzumab, 5G9 demonstrated more potent synergistic cell growth inhibitory activity when combined with trastuzumab (85% vs. 55%, P<0.001). In addition, 5G9 exhibited a higher internalization rate than pertuzumab (20% vs. 9%, P<0.05), and was able to further synergize with trastuzumab to promote antigen-antibody endocytosis. The internalization rate of the combination of 5G9 and trastuzumab was higher than that of pertuzumab and trastuzumab (35% vs. 14%, P<0.001). In vivo animal studies demonstrated that 5G9 in combination with trastuzumab showed more potent synergistic antitumor efficacy than the combination of pertuzumab and trastuzumab. Interpretation 5G9, together with trastuzumab, may provide a potential opportunity for more efficacious treatment of HER2-positive cancers. Funding National Natural Science Foundation of China; State Key Laboratory of Analytical Chemistry for Life Science.
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Affiliation(s)
- Xiaoyu Ding
- Department of Clinical Laboratory, Jinling Hospital, State Key Laboratory of Analytical Chemistry for Life Science, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | - Wanjian Gu
- Department of Clinical Laboratory, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yujie Zhong
- Department of Clinical Laboratory, Jinling Hospital, State Key Laboratory of Analytical Chemistry for Life Science, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China
| | | | - Jinyu Liu
- Biosion Inc., Nanjing, Jiangsu, China
| | | | - Lan Luo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China.
| | | | - Chunni Zhang
- Department of Clinical Laboratory, Jinling Hospital, State Key Laboratory of Analytical Chemistry for Life Science, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu, China.
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136
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Zhang Y. The root cause of drug resistance in HER2-positive breast cancer and the therapeutic approaches to overcoming the resistance. Pharmacol Ther 2020; 218:107677. [PMID: 32898548 DOI: 10.1016/j.pharmthera.2020.107677] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 08/28/2020] [Indexed: 12/19/2022]
Abstract
HER2 is a well-known oncogenic receptor tyrosine kinase. HER2 gene amplification occurs in about 20% of breast cancer (BC), which leads to overexpression of HER2 protein, known as HER2-positive BC. Inhibitors of HER2 have significantly improved the prognosis of patients with this subset of BC. Since 1998, seven HER2 inhibitors have been developed to treat this disease. However, drug resistance is common and remains a major unresolved clinical problem. Patients typically show disease progression after some time on treatment. This review discusses the complexity and diversified nature of HER2 signaling, the mechanisms of actions and therapeutic activities of all HER2 inhibitors, the roles of HER2 and other signaling proteins in HER2-positive BC resistant to the inhibitors, the non-cell-autonomous mechanisms of drug resistance, and the heterogeneity of tumor HER2 expression. The review presents the concept that drug resistance in HER2-positive BC results primarily from the inability of HER2 inhibitors to deplete HER2. Emerging therapeutics that are promising for overcoming drug resistance are also discussed.
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Affiliation(s)
- Yuesheng Zhang
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, USA.
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137
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Real-world effectiveness of dual HER2 blockade with pertuzumab and trastuzumab for neoadjuvant treatment of HER2-positive early breast cancer (The NEOPETRA Study). Breast Cancer Res Treat 2020; 184:469-479. [PMID: 32876911 DOI: 10.1007/s10549-020-05866-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/06/2020] [Indexed: 12/16/2022]
Abstract
PURPOSE Neoadjuvant clinical trials with dual HER2 blockade with pertuzumab and trastuzumab plus chemotherapy demonstrated high rates of pathological complete response (pCR) in HER2-positive early breast cancer (BC). We investigated whether the benefit on pCR seen in clinical trials is confirmed in a real-world setting. METHODS Multicenter, retrospective study in patients with HER2-positive early BC receiving neoadjuvant treatment with pertuzumab and trastuzumab in routine clinical practice (n = 243). The primary endpoint was total pCR (tpCR) (ypT0/is ypN0). RESULTS A total of 243 evaluable patients were included. Pertuzumab and trastuzumab were combined with anthracyclines and taxanes in 74.1% of patients, with single-agent taxane in 11.1% of patients and with platinum-based chemotherapy (CT) in 14.4% of patients. The tpCR rate was 66.4%:71% with anthracyclines and taxanes, 59.3% with single-agent taxane, and 48.6% with platinum-based combinations. The tpCR rate was higher among patients with hormone receptor (HR)-negative tumors (80.9%) vs HR-positive tumors (55.4%) (p < 0.001). A pCR in the breast (ypT0/is) was achieved in 67.6% of patients. Of 143 patients who showed radiological complete response (rCR) (62%), 112 (78.3%) patients also achieved tpCR. Assessment of rCR by magnetic resonance imaging (MRI) showed the highest negative predictive value (NPV) for predicting tpCR (83.5%). Breast-conserving surgery was performed in 58.7% of patients. Grade 3 and grade 4 toxicities were reported in 33 (18.2%) and 12 (6.6%) patients, respectively. No toxicity leading to death was reported. CONCLUSIONS This real-world analysis shows that neoadjuvant pertuzumab, trastuzumab, and chemotherapy achieve comparable or even higher rates of tpCR than those seen in clinical trials. The pCR benefit is higher in HR-negative tumors. The assessment of rCR by MRI showed the highest ability for predicting pCR. In addition, this neoadjuvant strategy confers an acceptable safety profile.
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138
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Yamashita T, Kawaguchi H, Masuda N, Kitada M, Narui K, Hattori M, Yoshinami T, Matsunami N, Yanagihara K, Kawasoe T, Nagashima T, Bando H, Yano H, Hasegawa Y, Nakamura R, Kashiwaba M, Morita S, Ohno S, Toi M. Efficacy of the eribulin, pertuzumab, and trastuzumab combination therapy for human epidermal growth factor receptor 2-positive advanced or metastatic breast cancer: a multicenter, single arm, phase II study (JBCRG-M03 study). Invest New Drugs 2020; 39:217-225. [PMID: 32833136 PMCID: PMC7851001 DOI: 10.1007/s10637-020-00991-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 08/18/2020] [Indexed: 12/01/2022]
Abstract
Purpose To date, it is not clear which anticancer agent is useful in combination with trastuzumab and pertuzumab As the first and second selective regimens for advanced or metastatic breast cancer (AMBC), this multicenter, open-label, phase II trial (JBCRG-M03: UMIN000012232) presents a prespecified analysis of eribulin in combination with pertuzumab and trastuzumab. Methods We enrolled 50 patients with no or single prior chemotherapy for HER2-positive AMBC during November 2013–April 2016. All patients received adjuvant or first-line chemotherapy with trastuzumab and a taxane. The treatment comprised eribulin on days 1 and 8 of a 21-day cycle and trastuzumabplus pertuzumab once every 3 weeks, all administered intravenously. While the primary endpoint was the progression-free survival (PFS), secondary endpoints were the response rate and safety. Results Of 50 patients, 49 were eligible for safety analysis, and the full analysis set (FAS) included 46 patients. We treated 8 (16%) and 41 (84%) patients in first- and second-line settings, respectively. While 11 patients (23.9%) had advanced disease, 35 (76.1%) had metastatic disease. The median PFS was 9.2 months for all patients [95% confidence interval (CI): 7.0–11.4]. In the FAS, 44 patients had the measurable lesions and the complete response rate (CR) was 17.4%, and partial response rate (PR) was 43.5%. The grade 3/4 adverse events were neutropenia (5 patients, 10.2%), including febrile neutropenia (2 patients, 4.1%), hypertension (3 patients, 6.1%), and other (1 patient). The average of the left ventricular ejection fraction did not decline markedly. No symptomatic left ventricular systolic dysfunction was observed. Conclusions In patients with HER2-positive AMBC, eribulin, pertuzumab, and trastuzumab combination therapy exhibited substantial antitumor activity with an acceptable safety profile. Hence, we have started a randomized phase III study comparing eribulin and a taxane in combination with pertuzumab and trastuzumab for the treatment of HER2-positive AMBC. Trial registration ID: UMIN-CTR: UMIN000012232.
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Affiliation(s)
- Toshinari Yamashita
- Department of Breast and Endocrine Surgery, Kanagawa Cancer Center, 2-3-2 Nakao, Asahi-ku, Yokohama, 241-8515, Japan.
| | - Hidetoshi Kawaguchi
- Department of Breast Surgery, Matsuyama Red Cross Hospital, Matsuyama, Japan
| | - Norikazu Masuda
- Department of Surgery, Breast Oncology, NHO Osaka National Hospital, Osaka, Japan
| | - Masahiro Kitada
- Breast Disease Center, Asahikawa Medical University Hospital, Asahikawa, Japan
| | - Kazutaka Narui
- Breast and Thyroid Surgery, Yokohama City University Medical Center, Yokohama, Japan
| | - Masaya Hattori
- Department of Breast Oncology, Aichi Cancer Center, Nagoya, Japan
| | - Tetsuhiro Yoshinami
- Department of Medical Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Nobuki Matsunami
- Department of Breast Surgery, Osaka Rosai Hospital, Sakai, Japan
| | - Kazuhiro Yanagihara
- Department of Medical Oncology, Kansai Electric Power Hospital, Osaka, Japan
| | - Teru Kawasoe
- Department of Breast and Endocrine Surgery, Japanese Red Cross Kumamoto Hospital, Kumamoto, Japan
| | - Takeshi Nagashima
- Department of General Surgery, Chiba University Hospital, Chiba, Japan
| | - Hiroko Bando
- Breast and Endocrine Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiroshi Yano
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yoshie Hasegawa
- Department of Breast Surgery, Hirosaki Municipal Hospital, Hirosaki, Japan
| | - Rikiya Nakamura
- Department of Breast Surgery, Chiba Cancer Center, Chiba, Japan
| | | | - Satoshi Morita
- Department of Biomedical Statistics and Bioinformatics, Graduate School of Medicine Kyoto University, Kyoto, Japan
| | - Shinji Ohno
- Center of Breast Oncology, The Cancer Institute Hospital of JFCR, Tokyo, Japan
| | - Masakazu Toi
- Department of Surgery (Breast Surgery), Graduate School of Medicine Kyoto University, Kyoto, Japan
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Sanches M, D'Angelo I, Jaramillo M, Baardsnes J, Zwaagstra J, Schrag J, Schoenhofen I, Acchione M, Lawn S, Wickman G, Weisser N, Poon DKY, Ng G, Dixit S. AlbuCORE: an albumin-based molecular scaffold for multivalent biologics design. MAbs 2020; 12:1802188. [PMID: 32816577 PMCID: PMC7531512 DOI: 10.1080/19420862.2020.1802188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
As biologics have become a mainstay in the development of novel therapies, protein engineering tools to expand on their structural advantages, namely specificity, affinity, and valency are of interest. Antibodies have dominated this field as the preferred scaffold for biologics development while there has been limited exploration into the use of albumin with its unique physiological characteristics as a platform for biologics design. There has been a great deal of interest to create bispecific and more complex multivalent molecules to build on the advantages offered by protein-based therapeutics relative to small molecules. Here, we explore the use of human serum albumin (HSA) as a scaffold for the design of multispecific biologics. In particular, we describe a structure-guided approach to the design of split HSA molecules we refer to as AlbuCORE, that effectively and spontaneously forms a native albumin-like molecule, but in a heterodimeric state upon co-expression. We show that the split AlbuCORE designs allow the creation of novel fusion entities with unique alternate geometries. We also show that, apart from these AlbuCORE fusion entities, there is an opportunity to explore their albumin-like small hydrophobic molecule carrying capacity as a drug conjugate in these designs.
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Affiliation(s)
| | - Igor D'Angelo
- One Amgen Center Dr, Amgen Inc ., Thousand Oaks, CA, USA
| | - Maria Jaramillo
- Human Health Therapeutics Portfolio, NRC-CNRC , Montreal, QC, Canada
| | - Jason Baardsnes
- Human Health Therapeutics Portfolio, NRC-CNRC , Montreal, QC, Canada
| | - John Zwaagstra
- Human Health Therapeutics Portfolio, NRC-CNRC , Montreal, QC, Canada
| | - Joe Schrag
- Human Health Therapeutics Portfolio, NRC-CNRC , Montreal, QC, Canada
| | - Ian Schoenhofen
- Human Health Therapeutics Portfolio, NRC-CNRC , Montreal, QC, Canada
| | - Mauro Acchione
- Human Health Therapeutics Portfolio, NRC-CNRC , Montreal, QC, Canada
| | - Sam Lawn
- R&D, Zymeworks Inc , Vancouver, BC, Canada
| | | | | | | | - Gordon Ng
- Search and Evaluation, Abbvie Inc , North Chicago, Illinois, USA
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Shrestha L, Singh SS, Parajuli P, Dahal A, Mattheolabakis G, Meyer S, Bhattacharjee J, Jois SD. In vivo studies of a peptidomimetic that targets EGFR dimerization in NSCLC. J Cancer 2020; 11:5982-5999. [PMID: 32922539 PMCID: PMC7477407 DOI: 10.7150/jca.46320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 07/17/2020] [Indexed: 12/25/2022] Open
Abstract
Studies related to lung cancer have shown a link between human epidermal growth factor receptor-2 (HER2) expression and poor prognosis in patients with non-small cell lung cancer (NSCLC). HER2 overexpression has been observed in 3-38% of NSCLC, while strong HER2 protein overexpression is found in 2.5% of NSCLC. However, HER2 dimerization is important in lung cancer, including EGFR mutated NSCLC. Since HER2 dimerization leads to cell proliferation, targeting the dimerization of HER2 will have a significant impact on cancer therapies. A peptidomimetic has been designed that can be used as a therapeutic agent for a subset of NSCLC patients overexpressing HER2 or possessing HER2 as well as EGFR mutation. A cyclic peptidomimetic (18) has been designed to inhibit protein-protein interactions of HER2 with its dimerization partners EGFR and HER3. Compound 18 exhibited antiproliferative activity in HER2-positive NSCLC cell lines at nanomolar concentrations. Western blot analysis showed that 18 inhibited phosphorylation of HER2 and Akt in vitro and in vivo. Stability studies of 18 at various temperature and pH (pH 1 and pH 7.6), and in the presence of liver microsomes indicated that 18 was stable against thermal and chemical degradation. Pharmacokinetic parameters were evaluated in nude mice by administrating single doses of 4 mg/kg and 6 mg/kg of 18 via IV. The anticancer activity of 18 was evaluated using an experimental metastasis lung cancer model in mice. Compound 18 suppressed the tumor growth in mice when compared to control. A proximity ligation assay further proved that 18 inhibits HER2:HER3 and EGFR: HER2 dimerization. Overall, these results suggest that 18 can be a potential treatment for HER2-dimerization related NSCLC.
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Affiliation(s)
- Leeza Shrestha
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201
| | - Sitanshu S. Singh
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201
| | - Pravin Parajuli
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201
| | - Achyut Dahal
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201
| | - George Mattheolabakis
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201
| | - Sharon Meyer
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201
| | - Joydeep Bhattacharjee
- Biology Program, School of Sciences, University of Louisiana, Monroe, Monroe, LA 71029
| | - Seetharama D. Jois
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201
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141
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Wege AK, Kirchhammer N, Kazandjian LV, Prassl S, Brandt M, Piendl G, Ortmann O, Fischer S, Brockhoff G. A novel rabbit derived anti-HER2 antibody with pronounced therapeutic effectiveness on HER2-positive breast cancer cells in vitro and in humanized tumor mice (HTM). J Transl Med 2020; 18:316. [PMID: 32799890 PMCID: PMC7429704 DOI: 10.1186/s12967-020-02484-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/08/2020] [Indexed: 01/05/2023] Open
Abstract
Background Antibody based cancer therapies have achieved convincing success rates combining enhanced tumor specificity and reduced side effects in patients. Trastuzumab that targets the human epidermal growth factor related receptor 2 (HER2) is one of the greatest success stories in this field. For decades, trastuzumab based treatment regimens are significantly improving the prognosis of HER2-positive breast cancer patients both in the metastatic and the (neo-) adjuvant setting. Nevertheless, ≥ 50% of trastuzumab treated patients experience de-novo or acquired resistance. Therefore, an enhanced anti-HER2 targeting with improved treatment efficiency is still aspired. Methods Here, we determined cellular and molecular mechanisms involved in the treatment of HER2-positive BC cells with a new rabbit derived HER2 specific chimeric monoclonal antibody called “B100″. We evaluated the B100 treatment efficiency of HER2-positive BC cells with different sensitivity to trastuzumab both in vitro and in the presence of a human immune system in humanized tumor mice. Results B100 not only efficiently blocks cell proliferation but more importantly induces apoptotic tumor cell death. Detailed in vitro analyses of B100 in comparison to trastuzumab (and pertuzumab) revealed equivalent HER2 internalization and recycling capacity, similar Fc receptor signaling, but different HER2 epitope recognition with high binding and treatment efficiency. In trastuzumab resistant SK-BR-3 based humanized tumor mice the B100 treatment eliminated the primary tumor but even more importantly eradicated metastasized tumor cells in lung, liver, brain, and bone marrow. Conclusion Overall, B100 demonstrated an enhanced anti-tumor activity both in vitro and in an enhanced preclinical HTM in vivo model compared to trastuzumab or pertuzumab. Thus, the use of B100 is a promising option to complement and to enhance established treatment regimens for HER2-positive (breast) cancer and to overcome trastuzumab resistance. Extended preclinical analyses using appropriate models and clinical investigations are warranted.
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Affiliation(s)
- Anja Kathrin Wege
- Clinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany.
| | - Nicole Kirchhammer
- Clinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany.,Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | | | | | - Gerhard Piendl
- Clinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany
| | - Olaf Ortmann
- Clinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany
| | | | - Gero Brockhoff
- Clinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany
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142
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Kaumaya PTP. B-cell epitope peptide cancer vaccines: a new paradigm for combination immunotherapies with novel checkpoint peptide vaccine. Future Oncol 2020; 16:1767-1791. [PMID: 32564612 PMCID: PMC7426751 DOI: 10.2217/fon-2020-0224] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 05/26/2020] [Indexed: 12/22/2022] Open
Abstract
In light of the numerous US FDA-approved humanized monoclonal antibodies (mAbs) for cancer immunotherapy, it is surprising that the advancement of B-cell epitope vaccines designed to elicit a natural humoral polyclonal antibody response has not gained traction in the immune-oncology landscape. Passive immunotherapy with humanized mAbs (Trastuzumab [Herceptin®]; Pertuzumab [Perjeta®]) has provided clinical benefit to breast cancer patients, albeit with significant shortcomings including toxicity problems and resistance, high costs, sophisticated therapeutic regimen and long half-life. The role of B-cell humoral immunity in cancer is under appreciated and underdeveloped. We have advanced the idea of active immunotherapy with chimeric B-cell epitope peptides incorporating a 'promiscuous' T-cell epitope that elicits a polyclonal antibody response, which provides safe, cost-effective therapeutic advantage over mAbs. We have created a portfolio of validated B-cell peptide epitopes against multiple receptor tyrosine kinases (HER-1, HER-3, IGF-1R and VEGF). We have successfully translated two HER-2 combination B-cell peptide vaccines in Phase I and II clinical trials. We have recently developed an effective novel PD-1 vaccine. In this article, I will review our approaches and strategies that focus on B-cell epitope cancer vaccines.
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Affiliation(s)
- Pravin TP Kaumaya
- Department of Obstetrics & Gynecology, College of Medicine, Wexner Medical Center, The James Cancer Hospital & Solove Research Institute, The Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
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143
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Leyton JV. Improving Receptor-Mediated Intracellular Access and Accumulation of Antibody Therapeutics-The Tale of HER2. Antibodies (Basel) 2020; 9:E32. [PMID: 32668710 PMCID: PMC7551051 DOI: 10.3390/antib9030032] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/03/2020] [Accepted: 07/08/2020] [Indexed: 12/14/2022] Open
Abstract
Therapeutic anti-HER2 antibodies and antibody-drug conjugates (ADCs) have undoubtedly benefitted patients. Nonetheless, patients ultimately relapse-some sooner than others. Currently approved anti-HER2 drugs are expensive and their cost-effectiveness is debated. There is increased awareness that internalization and lysosomal processing including subsequent payload intracellular accumulation and retention for ADCs are critical therapeutic attributes. Although HER2 preferential overexpression on the surface of tumor cells is attractive, its poor internalization and trafficking to lysosomes has been linked to poor therapeutic outcomes. To help address such issues, this review will comprehensively detail the most relevant findings on internalization and cellular accumulation for approved and investigational anti-HER2 antibodies and ADCs. The improved clarity of the HER2 system could improve antibody and ADC designs and approaches for next-generation anti-HER2 and other receptor targeting agents.
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Affiliation(s)
- Jeffrey V Leyton
- Department of Nuclear Medicine and Radiobiology, Faculty of Medicine and Health Sciences, Centre Hospitalier Universitaire de Sherbrooke (CHUS), Université de Sherbrooke, Sherbrooke, QC J1H5N4, Canada
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144
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Acebes-Fernández V, Landeira-Viñuela A, Juanes-Velasco P, Hernández AP, Otazo-Perez A, Manzano-Román R, Gongora R, Fuentes M. Nanomedicine and Onco-Immunotherapy: From the Bench to Bedside to Biomarkers. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1274. [PMID: 32610601 PMCID: PMC7407304 DOI: 10.3390/nano10071274] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/16/2020] [Accepted: 06/23/2020] [Indexed: 12/12/2022]
Abstract
The broad relationship between the immune system and cancer is opening a new hallmark to explore for nanomedicine. Here, all the common and synergy points between both areas are reviewed and described, and the recent approaches which show the progress from the bench to the beside to biomarkers developed in nanomedicine and onco-immunotherapy.
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Affiliation(s)
- Vanessa Acebes-Fernández
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Alicia Landeira-Viñuela
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Pablo Juanes-Velasco
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Angela-Patricia Hernández
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Andrea Otazo-Perez
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Raúl Manzano-Román
- Proteomics Unit, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain;
| | - Rafael Gongora
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
| | - Manuel Fuentes
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (V.A.-F.); (A.L.-V.); (P.J.-V.); (A.-P.H.); (A.O.-P.); (R.G.)
- Proteomics Unit, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain;
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145
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Simond AM, Muller WJ. In vivo modeling of the EGFR family in breast cancer progression and therapeutic approaches. Adv Cancer Res 2020; 147:189-228. [PMID: 32593401 DOI: 10.1016/bs.acr.2020.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Modeling breast cancer through the generation of genetically engineered mouse models (GEMMs) has become the gold standard in the study of human breast cancer. Notably, the in vivo modeling of the epidermal growth factor receptor (EGFR) family has been key to the development of therapeutics and has helped better understand the signaling pathways involved in cancer initiation, progression and metastasis. The HER2/ErbB2 receptor is a member of the EGFR family and 20% of breast cancers are found to belong in the HER2-positive histological subtype. Historical and more recent advances in the field have shaped our understanding of HER2-positive breast cancer signaling and therapeutic approaches.
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Affiliation(s)
- Alexandra M Simond
- Rosalind and Morris Goodman Cancer Research Center, McGill University, Montreal, QC, Canada; Department of Biochemistry, McGill University, Montreal, QC, Canada
| | - William J Muller
- Rosalind and Morris Goodman Cancer Research Center, McGill University, Montreal, QC, Canada; Department of Biochemistry, McGill University, Montreal, QC, Canada; Faculty of Medicine, McGill University, Montreal, QC, Canada.
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146
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Minond D. Novel Approaches and Challenges of Discovery of Exosite Modulators of a Disintegrin and Metalloprotease 10. Front Mol Biosci 2020; 7:75. [PMID: 32435655 PMCID: PMC7218085 DOI: 10.3389/fmolb.2020.00075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/02/2020] [Indexed: 12/13/2022] Open
Abstract
A disintegrin and metaproteinase 10 is an important target for multiple therapeutic areas, however, despite drug discovery efforts by both industry and academia no compounds have reached the clinic so far. The lack of enzyme and substrate selectivity of developmental drugs is believed to be a main obstacle to the success. In this review, we will focus on novel approaches and associated challenges in discovery of ADAM10 selective modulators that can overcome shortcomings of previous generations of compounds and be translated into the clinic.
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Affiliation(s)
- Dmitriy Minond
- Rumbaugh-Goodwin Institute for Cancer Research, Nova Southeastern University, Fort Lauderdale, FL, United States.,Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
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147
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Rybchenko VS, Balabashin DS, Panina AA, Solopova ON, Yakimov SA, Aliev TK, Dolgikh DA, Kirpichnikov MP. Production of the Extracellular Part of the ErbB2 Receptor for the Study of Immunobiologicals. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2020. [DOI: 10.1134/s106816202003019x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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148
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Westbrook JD, Soskind R, Hudson BP, Burley SK. Impact of the Protein Data Bank on antineoplastic approvals. Drug Discov Today 2020; 25:837-850. [PMID: 32068073 PMCID: PMC7305983 DOI: 10.1016/j.drudis.2020.02.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/08/2020] [Accepted: 02/07/2020] [Indexed: 12/14/2022]
Abstract
Open access to 3D structure information from the Protein Data Bank (PDB) facilitated discovery and development of >90% of the 79 new antineoplastic agents (54 small molecules, 25 biologics) with known molecular targets approved by the FDA 2010-2018. Analyses of PDB holdings, the scientific literature and related documents for each drug-target combination revealed that the impact of public-domain 3D structure data was broad and substantial, ranging from understanding target biology (∼95% of all targets) to identifying a given target as probably druggable (∼95% of all targets) to structure-guided lead optimization (>70% of all small-molecule drugs). In addition to aggregate impact assessments, illustrative case studies are presented for three protein kinase inhibitors, an allosteric enzyme inhibitor and seven advanced-stage melanoma therapeutics.
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Affiliation(s)
- John D Westbrook
- Research Collaboratory for Structural Bioinformatics Protein Data Bank, Institute for Quantitative Biomedicine, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Rose Soskind
- Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Brian P Hudson
- Research Collaboratory for Structural Bioinformatics Protein Data Bank, Institute for Quantitative Biomedicine, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Stephen K Burley
- Research Collaboratory for Structural Bioinformatics Protein Data Bank, Institute for Quantitative Biomedicine, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ 08903, USA; Research Collaboratory for Structural Bioinformatics Protein Data Bank, San Diego Supercomputer Center, University of California, San Diego, La Jolla, CA 92093, USA; Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA 92093, USA.
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149
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Guan S, Zhang Q, Bao J, Hu R, Czech T, Tang J. Recognition Sites for Cancer-targeting Drug Delivery Systems. Curr Drug Metab 2020; 20:815-834. [PMID: 31580248 DOI: 10.2174/1389200220666191003161114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/10/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Target-homing drug delivery systems are now gaining significant attention for use as novel therapeutic approaches in antitumor targeting for cancer therapy. Numerous targeted drug delivery systems have been designed to improve the targeting effects because these systems can display a range of favorable properties, thus, providing suitable characteristics for clinical applicability of anticancer drugs, such as increasing the solubility, and improving the drug distribution at target sites. The majority of these targeting systems are designed with respect to differences between cancerous and normal tissues, for instance, the low pH of tumor tissues or overexpressed receptors on tumor cell membranes. Due to the growing number of targeting possibilities, it is important to know the tumor-specific recognition strategies for designing novel, targeted, drug delivery systems. Herein, we identify and summarize literature pertaining to various recognition sites for optimizing the design of targeted drug delivery systems to augment current chemotherapeutic approaches. OBJECTIVE This review focuses on the identification of the recognition sites for developing targeted drug delivery systems for use in cancer therapeutics. METHODS We have reviewed and compiled cancer-specific recognition sites and their abnormal characteristics within tumor tissues (low pH, high glutathione, targetable receptors, etc.), tumor cells (receptor overexpression or tumor cell membrane changes) and tumor cell organelles (nuclear and endoplasmic reticular dysregulation) utilizing existing scientific literature. Moreover, we have highlighted the design of some targeted drug delivery systems that can be used as homing tools for these recognition sites. RESULTS AND CONCLUSION Targeted drug delivery systems are a promising therapeutic approach for tumor chemotherapy. Additional research focused on finding novel recognition sites, and subsequent development of targeting moieties for use with drug delivery systems will aid in the evaluation and clinical application of new and improved chemotherapeutics.
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Affiliation(s)
- Siyu Guan
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Qianqian Zhang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jianwei Bao
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Rongfeng Hu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui University of Chinese Medicine, Anhui "115" Xin'an Medicine Research & Development Innovation Team, Hefei 230038, China
| | - Tori Czech
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH 44272, United States
| | - Jihui Tang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
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150
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Abstract
Background SB3, a biosimilar of Herceptin® (trastuzumab, hereinafter referred to as reference product) is currently approved in the EU, Korea, Australia, the USA, and Brazil for the treatment of human epidermal growth factor receptor (HER) 2-positive early and metastatic breast cancer and HER2-positive metastatic gastric cancer. Previously, the biological similarity of SB3 to EU- or US-sourced reference product was assessed using various cell-based and binding assays. Objective In this paper, as a part of its similarity assessment, SB3 was evaluated for additional characteristics related to its molecular mechanism of action (MoA). Methods For extracellular effects of SB3, HER2-overexpressing cancer cell lines were used to assess expression of surface HER2, shedding of the extracellular domain of HER2, and antibody-dependent cell-mediated phagocytosis (ADCP) activity. For intracellular effects, Akt phosphorylation and vascular endothelial growth factor (VEGF) release were assessed. Additionally, in vitro docetaxel or pertuzumab combination experiments were performed for further characterization; anti-proliferation, HER2/HER3 dimerization inhibition, apoptosis, and antibody-dependent cell-mediated cytotoxicity (ADCC) assays were used. Results It was confirmed that SB3 is highly similar to the reference products on quality attributes related to extracellular/intracellular efficacy. This similarity was also confirmed during combination studies with docetaxel and pertuzumab. Conclusion Overall, the equivalence of SB3 with reference product in MoA-related qualities in in vitro mono- and combination therapy experiments may support clinical bioequivalence of the two substances.
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