1
|
Shah NN, Dave BP, Shah KC, Shah DD, Maheshwari KG, Chorawala MR. Disable 2, A Versatile Tissue Matrix Multifunctional Scaffold Protein with Multifaceted Signaling: Unveiling Role in Breast Cancer for Therapeutic Revolution. Cell Biochem Biophys 2024; 82:501-520. [PMID: 38594547 DOI: 10.1007/s12013-024-01261-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2024] [Indexed: 04/11/2024]
Abstract
The Disabled-2 (DAB2) protein, found in 80-90% of various tumors, including breast cancer, has been identified as a potential tumor suppressor protein. On the contrary, some hypothesis suggests that DAB2 is associated with the modulation of the Ras/MAPK pathway by endocytosing the Grb/Sos1 signaling complex, which produces oncogenes and chemoresistance to anticancer drugs, leading to increased tumor growth and metastasis. DAB2 has multiple functions in several disorders and is typically under-regulated in several cancers, making it a potential target for treatment of cancer therapy. The primary function of DAB2 is the modulation of transforming growth factor- β (TGF-β) mediated endocytosis, which is involved in several mechanisms of cancer development, including tumor suppression through promoting apoptosis and suppressing cell proliferation. In this review, we will discuss in detail the mechanisms through which DAB2 leads to breast cancer and various advancements in employing DAB2 in the treatment of breast cancer. Additionally, we outlined its role in other diseases. We propose that upregulating DAB2 could be a novel approach to the therapeutics of breast cancer.
Collapse
Affiliation(s)
- Nidhi N Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Navrangpura, Ahmedabad, 380009, Gujarat, India
| | - Bhavarth P Dave
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Navrangpura, Ahmedabad, 380009, Gujarat, India
| | - Kashvi C Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Navrangpura, Ahmedabad, 380009, Gujarat, India
| | - Disha D Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Navrangpura, Ahmedabad, 380009, Gujarat, India
| | - Kunal G Maheshwari
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Navrangpura, Ahmedabad, 380009, Gujarat, India
| | - Mehul R Chorawala
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Navrangpura, Ahmedabad, 380009, Gujarat, India.
| |
Collapse
|
2
|
Bodea IC, Ciocan A, Zaharie FV, Bodea R, Graur F, Ursu Ș, Ciocan RA, Al Hajjar N. HER2 Overexpression in Periampullary Tumors According to Anatomical and Histological Classification-A Systematic Review. J Pers Med 2024; 14:463. [PMID: 38793045 PMCID: PMC11122564 DOI: 10.3390/jpm14050463] [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: 04/02/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024] Open
Abstract
Pancreatic cancer is one of the most aggressive, heterogeneous, and fatal types of human cancer; therefore, more effective therapeutic drugs are urgently needed. Human epidermal growth factor receptor 2 (HER2) overexpression and amplification have been identified as a cornerstone in this pathology. The aim of this review is to identify HER2 membrane overexpression in relation to pancreatic cancer pathways that can be used in order to develop a targeted therapy. After searching the keywords, 174 articles were found during a time span of 10 years, between 2013 and 2023, but only twelve scientific papers were qualified for this investigation. The new era of biomolecular research found a significant relationship between HER2 overexpression and pancreatic cancer cells in 25-30% of cases. The variables are dependent on tumor-derived cells, with differences in receptor overexpression between PDAC (pancreatic ductal adenocarcinoma), BTC (biliary tract cancer), ampullary carcinoma, and PNETs (pancreatic neuroendocrine tumors). HER2 overexpression is frequently encountered in human pancreatic carcinoma cell lines, and the ERBB family is one of the targets in the near future of therapy, with good results in phase I, II, and III studies evaluating downregulation and tumor downstaging, respectively.
Collapse
Affiliation(s)
- Ioan Cătălin Bodea
- Department of Surgery, “Iuliu Hațieganu” University of Medicine and Pharmacy, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania; (I.C.B.); (F.V.Z.); (F.G.); (Ș.U.); (N.A.H.)
- “Octavian Fodor” Regional Institute of Gastroenterology and Hepatology, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania;
| | - Andra Ciocan
- Department of Surgery, “Iuliu Hațieganu” University of Medicine and Pharmacy, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania; (I.C.B.); (F.V.Z.); (F.G.); (Ș.U.); (N.A.H.)
- “Octavian Fodor” Regional Institute of Gastroenterology and Hepatology, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania;
| | - Florin Vasile Zaharie
- Department of Surgery, “Iuliu Hațieganu” University of Medicine and Pharmacy, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania; (I.C.B.); (F.V.Z.); (F.G.); (Ș.U.); (N.A.H.)
- “Octavian Fodor” Regional Institute of Gastroenterology and Hepatology, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania;
| | - Raluca Bodea
- “Octavian Fodor” Regional Institute of Gastroenterology and Hepatology, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania;
| | - Florin Graur
- Department of Surgery, “Iuliu Hațieganu” University of Medicine and Pharmacy, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania; (I.C.B.); (F.V.Z.); (F.G.); (Ș.U.); (N.A.H.)
- “Octavian Fodor” Regional Institute of Gastroenterology and Hepatology, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania;
| | - Ștefan Ursu
- Department of Surgery, “Iuliu Hațieganu” University of Medicine and Pharmacy, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania; (I.C.B.); (F.V.Z.); (F.G.); (Ș.U.); (N.A.H.)
- “Octavian Fodor” Regional Institute of Gastroenterology and Hepatology, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania;
| | - Răzvan Alexandru Ciocan
- Department of Surgery-Practical Abilities, “Iuliu Hațieganu” University of Medicine and Pharmacy, Marinescu Street, No. 23, 400337 Cluj-Napoca, Romania;
| | - Nadim Al Hajjar
- Department of Surgery, “Iuliu Hațieganu” University of Medicine and Pharmacy, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania; (I.C.B.); (F.V.Z.); (F.G.); (Ș.U.); (N.A.H.)
- “Octavian Fodor” Regional Institute of Gastroenterology and Hepatology, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania;
| |
Collapse
|
3
|
Lee CH, Tsai CH, Leu SJ, Liu KJ, Wang WC, Tsai BY, Chiang LC, Mao YC, Benedict Dlamini N, Tsai CH, Yang YY. Generation and characterization of avian single chain variable fragment against human Alpha-Enolase. Int Immunopharmacol 2023; 120:110277. [PMID: 37196558 DOI: 10.1016/j.intimp.2023.110277] [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: 01/19/2023] [Revised: 04/21/2023] [Accepted: 04/30/2023] [Indexed: 05/19/2023]
Abstract
Overexpression of human alpha-enolase (hEno1)has been reported in a wide range of cancers and is tightly associated with poor prognosis, making it a remarkable biomarker and therapeutic target. In this study, polyclonal yolk-immunoglobulin (IgY) antibodies purified from hEno1-immunized chickens showed a noticeable specific humoral response. Phage display technology was used to construct two antibody libraries of IgY gene-derived single-chain variable fragments (scFvs) containing 7.8 × 107 and 5.4 × 107 transformants, respectively. Phage-based ELISA indicated that specific anti-hEno1 clones were significantly enriched. The nucleotide sequences of scFv-expressing clones were determined and classified into seven groups either in the short linker or the long linker. Moreover, higher mutation rates were revealed in the CDR regions, especially in the CDR3. Three distinguish antigenic epitopes were identified on the hEno1 protein. The binding activities of selected anti-hEno1 scFv on hEno1-positive PE089 lung cancer cells were confirmed using Western blot, flow cytometry, and immunofluorescence assay. In particular, hEnS7 and hEnS8 scFv antibodies significantly suppressed the growth and migration of PE089 cells. Taken together, these chicken-derived anti-hEno1 IgY and scFv antibodies have great potential to develop diagnostic and therapeutic agents for the treatment of lung cancer patients with high expression levels of hEno1 protein.
Collapse
Affiliation(s)
- Chi-Hsin Lee
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan; Ph.D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan
| | - Chu-Hsuan Tsai
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan
| | - Sy-Jye Leu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan; Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Ko-Jiunn Liu
- National Institute of Cancer Research, National Health Research Institutes, Tainan 70456, Taiwan
| | - Wei-Chu Wang
- Ph.D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan
| | - Bor-Yu Tsai
- Navi Bio-Therapeutics Inc., Taipei 10351, Taiwan
| | - Liao-Chun Chiang
- College of Life Sciences, National Tsing Hua University, Hsinchu 300040, Taiwan
| | - Yan-Chiao Mao
- Division of Clinical Toxicology, Department of Emergency Medicine, Taichung Veterans General Hospital, Taichung 407219, Taiwan
| | - Nhlanhla Benedict Dlamini
- Ph.D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan
| | - Chen-Hsin Tsai
- Department of Ophthalmology, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Yi-Yuan Yang
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan; Ph.D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan; Core Laboratory of Antibody Generation and Research, Taipei Medical University, Taipei 110301, Taiwan.
| |
Collapse
|
4
|
Rabia E, Garambois V, Dhommée C, Larbouret C, Lajoie L, Buscail Y, Jimenez-Dominguez G, Choblet-Thery S, Liaudet-Coopman E, Cerutti M, Jarlier M, Ravel P, Gros L, Pirot N, Thibault G, Zhukovsky EA, Gérard PE, Pèlegrin A, Colinge J, Chardès T. Design and selection of optimal ErbB-targeting bispecific antibodies in pancreatic cancer. Front Immunol 2023; 14:1168444. [PMID: 37153618 PMCID: PMC10157173 DOI: 10.3389/fimmu.2023.1168444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/06/2023] [Indexed: 05/10/2023] Open
Abstract
The ErbB family of receptor tyrosine kinases is a primary target for small molecules and antibodies for pancreatic cancer treatment. Nonetheless, the current treatments for this tumor are not optimal due to lack of efficacy, resistance, or toxicity. Here, using the novel BiXAb™ tetravalent format platform, we generated bispecific antibodies against EGFR, HER2, or HER3 by considering rational epitope combinations. We then screened these bispecific antibodies and compared them with the parental single antibodies and antibody pair combinations. The screen readouts included measuring binding to the cognate receptors (mono and bispecificity), intracellular phosphorylation signaling, cell proliferation, apoptosis and receptor expression, and also immune system engagement assays (antibody-dependent cell-mediated cytotoxicity and complement-dependent cytotoxicity). Among the 30 BiXAbs™ tested, we selected 3Patri-1Cetu-Fc, 3Patri-1Matu-Fc and 3Patri-2Trastu-Fc as lead candidates. The in vivo testing of these three highly efficient bispecific antibodies against EGFR and HER2 or HER3 in pre-clinical mouse models of pancreatic cancer showed deep antibody penetration in these dense tumors and robust tumor growth reduction. Application of such semi-rational/semi-empirical approach, which includes various immunological assays to compare pre-selected antibodies and their combinations with bispecific antibodies, represents the first attempt to identify potent bispecific antibodies against ErbB family members in pancreatic cancer.
Collapse
Affiliation(s)
- Emilia Rabia
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Véronique Garambois
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Christine Dhommée
- GICC, Groupe Innovation et Ciblage Cellulaire, Université de Tours, Tours, France
| | - Christel Larbouret
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Laurie Lajoie
- GICC, Groupe Innovation et Ciblage Cellulaire, Université de Tours, Tours, France
| | - Yoan Buscail
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
- Réseau d’Histologie Expérimentale de Montpellier, BioCampus, Université de Montpellier, UAR3426 CNRS-US09 INSERM, Montpellier, France
| | - Gabriel Jimenez-Dominguez
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Sylvie Choblet-Thery
- Plateforme Bacfly, Baculovirus et Thérapie, BioCampus, UAR3426 CNRS-US09 INSERM, Saint-Christol-Lèz Alès, France
| | - Emmanuelle Liaudet-Coopman
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Martine Cerutti
- Plateforme Bacfly, Baculovirus et Thérapie, BioCampus, UAR3426 CNRS-US09 INSERM, Saint-Christol-Lèz Alès, France
| | - Marta Jarlier
- ICM, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Patrice Ravel
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Laurent Gros
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
- CNRS, Centre National de la Recherche Scientifique, Paris, France
| | - Nelly Pirot
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
- Réseau d’Histologie Expérimentale de Montpellier, BioCampus, Université de Montpellier, UAR3426 CNRS-US09 INSERM, Montpellier, France
| | - Gilles Thibault
- GICC, Groupe Innovation et Ciblage Cellulaire, Université de Tours, Tours, France
| | - Eugene A. Zhukovsky
- Biomunex Pharmaceuticals, Incubateur Paris Biotech santé, Hopital Cochin, Paris, France
| | | | - André Pèlegrin
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Jacques Colinge
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Thierry Chardès
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, France
- Plateforme Bacfly, Baculovirus et Thérapie, BioCampus, UAR3426 CNRS-US09 INSERM, Saint-Christol-Lèz Alès, France
- CNRS, Centre National de la Recherche Scientifique, Paris, France
- *Correspondence: Thierry Chardès,
| |
Collapse
|
5
|
Larbouret C, Gros L, Pèlegrin A, Chardès T. Improving Biologics' Effectiveness in Clinical Oncology: From the Combination of Two Monoclonal Antibodies to Oligoclonal Antibody Mixtures. Cancers (Basel) 2021; 13:cancers13184620. [PMID: 34572847 PMCID: PMC8465647 DOI: 10.3390/cancers13184620] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/01/2021] [Accepted: 09/09/2021] [Indexed: 01/03/2023] Open
Abstract
Simple Summary The approval of the two antibody combinations trastuzumab/pertuzumab and ipilimumab/nivolumab in oncology has paved the way for novel antibody combinations or oligoclonal antibody mixtures to improve their efficacy in cancer. The underlying biological mechanisms and challenges of these strategies will be discussed using data from clinical trials listed in databases. These therapeutic combinations also lead to questions on how to optimize their formulation and delivery to induce a therapeutic polyclonal response in patients with cancer. Abstract Monoclonal antibodies have revolutionized the treatment of many diseases, but their clinical efficacy remains limited in some other cases. Pre-clinical and clinical trials have shown that combinations of antibodies that bind to the same target (homo-combinations) or to different targets (hetero-combinations) to mimic the polyclonal humoral immune response improve their therapeutic effects in cancer. The approval of the trastuzumab/pertuzumab combination for breast cancer and then of the ipilimumab/nivolumab combination for melanoma opened the way to novel antibody combinations or oligoclonal antibody mixtures as more effective biologics for cancer management. We found more than 300 phase II/III clinical trials on antibody combinations, with/without chemotherapy, radiotherapy, small molecules or vaccines, in the ClinicalTrials.gov database. Such combinations enhance the biological responses and bypass the resistance mechanisms observed with antibody monotherapy. Usually, such antibody combinations are administered sequentially as separate formulations. Combined formulations have also been developed in which separately produced antibodies are mixed before administration or are produced simultaneously in a single cell line or a single batch of different cell lines as a polyclonal master cell bank. The regulation, toxicity and injection sequence of these oligoclonal antibody mixtures still need to be addressed in order to optimize their delivery and their therapeutic effects.
Collapse
Affiliation(s)
- Christel Larbouret
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Institut Régional du Cancer de Montpellier (ICM), Inserm U1194, Université de Montpellier, 34298 Montpellier, France; (L.G.); (A.P.); (T.C.)
- Correspondence: ; Tel.: +33-411-283-110
| | - Laurent Gros
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Institut Régional du Cancer de Montpellier (ICM), Inserm U1194, Université de Montpellier, 34298 Montpellier, France; (L.G.); (A.P.); (T.C.)
- Centre National de la Recherche Scientifique (CNRS), 75016 Paris, France
| | - André Pèlegrin
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Institut Régional du Cancer de Montpellier (ICM), Inserm U1194, Université de Montpellier, 34298 Montpellier, France; (L.G.); (A.P.); (T.C.)
| | - Thierry Chardès
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Institut Régional du Cancer de Montpellier (ICM), Inserm U1194, Université de Montpellier, 34298 Montpellier, France; (L.G.); (A.P.); (T.C.)
- Centre National de la Recherche Scientifique (CNRS), 75016 Paris, France
| |
Collapse
|
6
|
Antibody therapy in pancreatic cancer: mAb-ye we're onto something? Biochim Biophys Acta Rev Cancer 2021; 1876:188557. [PMID: 33945846 DOI: 10.1016/j.bbcan.2021.188557] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/23/2021] [Accepted: 04/25/2021] [Indexed: 02/07/2023]
Abstract
Pancreatic cancer remains an extremely deadly disease, with little improvement seen in treatment or outcomes over the last 40 years. Targeted monoclonal antibody therapy is one area that has been explored in attempts to tackle this disease. This review examines antibodies that have undergone clinical evaluation in pancreatic cancer. These antibodies target a wide variety of molecules, including tumour cell surface, stromal, immune and embryonic pathway targets. We discuss the therapeutic utility of these therapies both as monotherapeutics and in combination with other treatments such as chemotherapy. While antibody therapy for pancreatic cancer has yet to yield significant success, lessons learned from research thus far highlights future directions that may help overcome observed hurdles to yield clinically efficacious results.
Collapse
|
7
|
Sun J, Chen L, Dong M. MiR-338-5p Inhibits EGF-Induced EMT in Pancreatic Cancer Cells by Targeting EGFR/ERK Signaling. Front Oncol 2021; 11:616481. [PMID: 33937024 PMCID: PMC8082406 DOI: 10.3389/fonc.2021.616481] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 02/03/2021] [Indexed: 12/11/2022] Open
Abstract
The epidermal growth factor (EGF) pathway plays critical roles during cancer cell epithelial-mesenchymal transition (EMT) process and metastasis. Epidermal growth factor receptor (EGFR), as one of the important receptors of EGF, undergoes autophosphorylation with the stimulation of EGF and activates MAPK/ERK, PI3K/Akt/mTOR, and other pathways. Here, we identified EGFR was a target of miR-338-5p. Upon EGF treatment, overexpression of miR-338-5p not only downregulated EGFR expression and inhibited MAPK/ERK signaling, but also inhibited EMT and metastasis process of pancreatic cancer (PC) cells. In the clinical pathological analysis, miR-338-5p was significantly down-regulated in 44 pairs PC tissues and its expression was negatively associated with lymph node metastasis and AJCC stage. Furthermore, Overexpression of EGFR partially reversed the protective effect of miR-338-5p overexpression on EGF-mediated migration and invasion in PC cells. Taken together, miR-338-5p controls EGF-mediated EMT and metastasis in PC cells by targeting EGFR/ERK pathways. Here, we hope to provide new insights into the molecular mechanisms of pancreatic cancer, and may help facilitating development of EGFR-based therapies for human cancer.
Collapse
Affiliation(s)
- Jian Sun
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, Shenyang, China
| | - Lin Chen
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, Shenyang, China
| | - Ming Dong
- Department of Gastrointestinal Surgery, The First Hospital, China Medical University, Shenyang, China
| |
Collapse
|
8
|
Rabia E, Garambois V, Hubert J, Bruciamacchie M, Pirot N, Delpech H, Broyon M, Theillet C, Colombo PE, Vie N, Tosi D, Gongora C, Khellaf L, Jarlier M, Radosevic-Robin N, Chardès T, Pèlegrin A, Larbouret C. Anti-tumoral activity of the Pan-HER (Sym013) antibody mixture in gemcitabine-resistant pancreatic cancer models. MAbs 2021; 13:1914883. [PMID: 33876707 PMCID: PMC8078530 DOI: 10.1080/19420862.2021.1914883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/30/2021] [Accepted: 04/06/2021] [Indexed: 01/02/2023] Open
Abstract
Chemoresistance, particularly to gemcitabine, is a major challenge in pancreatic cancer. The epidermal growth factor receptor (EGFR) and human epidermal growth factor receptors 2 and 3 (HER2, HER3) are expressed in many tumors, and they are relevant therapeutic targets due to their synergistic interaction to promote tumor aggressiveness and therapeutic resistance. Cocktails of antibodies directed against different targets are a promising strategy to overcome these processes. Here, we found by immunohistochemistry that these three receptors were co-expressed in 11% of patients with pancreatic adenocarcinoma. We then developed gemcitabine-resistant pancreatic cancer cell models (SW-1990-GR and BxPC3-GR) and one patient-derived xenograft (PDX2846-GR) by successive exposure to increasing doses of gemcitabine. We showed that expression of EGFR, HER2 and HER3 was increased in these gemcitabine-resistant pancreatic cancer models, and that an antibody mixture against all three receptors inhibited tumor growth in mice and downregulated HER receptors. Finally, we demonstrated that the Pan-HER and gemcitabine combination has an additive effect in vitro and in mice xenografted with the gemcitabine-sensitive or resistant pancreatic models. The mixture of anti-EGFR, HER2 and HER3 antibodies is a good candidate therapeutic approach for gemcitabine-sensitive and -resistant pancreatic cancer.
Collapse
MESH Headings
- Animals
- Antibodies/pharmacology
- Antimetabolites, Antineoplastic/pharmacology
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Deoxycytidine/analogs & derivatives
- Deoxycytidine/pharmacology
- Drug Resistance, Neoplasm
- ErbB Receptors/antagonists & inhibitors
- ErbB Receptors/immunology
- ErbB Receptors/metabolism
- Female
- Humans
- Mice, Nude
- Pancreatic Neoplasms/drug therapy
- Pancreatic Neoplasms/immunology
- Pancreatic Neoplasms/metabolism
- Pancreatic Neoplasms/pathology
- Receptor, ErbB-2/antagonists & inhibitors
- Receptor, ErbB-2/immunology
- Receptor, ErbB-2/metabolism
- Receptor, ErbB-3/antagonists & inhibitors
- Receptor, ErbB-3/immunology
- Receptor, ErbB-3/metabolism
- Tumor Burden/drug effects
- Xenograft Model Antitumor Assays
- Gemcitabine
- Mice
Collapse
Affiliation(s)
- Emilia Rabia
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Véronique Garambois
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Julie Hubert
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Marine Bruciamacchie
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Nelly Pirot
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
- BioCampus Montpellier, Université Montpellier, CNRS UAR3426, INSERM US09, Université De Montpellier, Montpellier, France
| | - Hélène Delpech
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Morgane Broyon
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
- BioCampus Montpellier, Université Montpellier, CNRS UAR3426, INSERM US09, Université De Montpellier, Montpellier, France
| | - Charles Theillet
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | | | - Nadia Vie
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Diego Tosi
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
- Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Celine Gongora
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Lakhdar Khellaf
- Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Marta Jarlier
- Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Nina Radosevic-Robin
- Centre Jean Perrin, Université Clermont Auvergne, INSERM U1240, Clermont-Ferrand, France
| | - Thierry Chardès
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - André Pèlegrin
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| | - Christel Larbouret
- Institut De Recherche En Cancérologie De Montpellier (IRCM), INSERM U1194, Université De Montpellier, Institut Régional Du Cancer De Montpellier (ICM), Montpellier, France
| |
Collapse
|
9
|
Assenat E, Mineur L, Mollevi C, Lopez-Crapez E, Lombard-Bohas C, Samalin E, Portales F, Walter T, de Forges H, Dupuy M, Boissière-Michot F, Ho-Pun-Cheung A, Ychou M, Mazard T. Phase II study evaluating the association of gemcitabine, trastuzumab and erlotinib as first-line treatment in patients with metastatic pancreatic adenocarcinoma (GATE 1). Int J Cancer 2020; 148:682-691. [PMID: 33405269 DOI: 10.1002/ijc.33225] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 12/26/2022]
Abstract
In a previous phase II study (THERAPY), cetuximab and trastuzumab combination, as second-line after progression with gemcitabine, showed disease stabilization in 27% of 33 patients with pancreatic carcinoma. In the present phase II multicenter study, we assessed the efficacy and tolerance of gemcitabine, trastuzumab plus erlotinib as first-line treatment of metastatic pancreatic cancer. The primary endpoint was disease control rate (DCR, RECIST v.1); secondary endpoints were progression-free (PFS), overall (OS) survival and toxicity (NCI-CTCAE v3.0). Ancillary study addressed the predictive value of both EGFR/HER2 expression and KRAS mutational status. Sixty-three patients from four centers were included (62 evaluable for toxicity, 59 for efficacy), median age was 62 years (35-77), 59.7% men. The median treatment duration was 16.1 weeks (2.1-61). Eleven patients (19%) reported a partial tumor response, and 33 (56%) disease stabilization. DCR was 74.6% (95%CI: 61.8-85.0; 44/59 patients). After a median follow-up of 23.3 months (0.6-23.6), median PFS was 3.5 months (95%CI: 2.4-3.8) and median OS 7.9 months (95%CI: 5.1-10.2). PFS was significantly longer in patients with grade ≥ 2 cutaneous toxicities vs patients with grade 0-1 toxicities (HR = 0.55, 95%CI: 0.33-0.92, P = .020). Expression of EGFR and HER2 was correlated with PFS and OS in multivariate analysis; HER2 expression was correlated with the tumor response. Main severe toxicities were neutropenia (32%), cutaneous rash (37%) and thrombosis/embolisms (35.5%). This triplet combination is effective in terms of disease control, PFS and OS, and acceptable for safety. A larger study to investigate this combination compared to the standard regimen should be discussed.
Collapse
Affiliation(s)
- Eric Assenat
- Medical Oncology Department, Institut du Cancer de Montpellier (ICM), Univ. Montpellier, Montpellier, France.,Centre Hospitalier Régional Universitaire (CHU) de Montpellier, Univ. Montpellier, Montpellier, France
| | - Laurent Mineur
- Unité de Cancérologie Digestive Oncologie Radiothérapie, Institut Sainte Catherine, Avignon, France
| | - Caroline Mollevi
- Biometrics Unit, Institut du Cancer de Montpellier (ICM), University of Montpellier, Montpellier, France
| | - Evelyne Lopez-Crapez
- Translational Research Unit, Institut Régional du Cancer de Montpellier (ICM), University of Montpellier, Montpellier, France
| | | | - Emmanuelle Samalin
- Medical Oncology Department, Institut du Cancer de Montpellier (ICM), Univ. Montpellier, Montpellier, France
| | - Fabienne Portales
- Medical Oncology Department, Institut du Cancer de Montpellier (ICM), Univ. Montpellier, Montpellier, France
| | | | - Hélène de Forges
- Clinical Research and Innovation Department, Institut du Cancer de Montpellier (ICM), University of Montpellier, Montpellier, France
| | - Marie Dupuy
- Centre Hospitalier Régional Universitaire (CHU) de Montpellier, Univ. Montpellier, Montpellier, France
| | - Florence Boissière-Michot
- Translational Research Unit, Institut Régional du Cancer de Montpellier (ICM), University of Montpellier, Montpellier, France
| | - Alexandre Ho-Pun-Cheung
- Translational Research Unit, Institut Régional du Cancer de Montpellier (ICM), University of Montpellier, Montpellier, France
| | - Marc Ychou
- Medical Oncology Department, Institut du Cancer de Montpellier (ICM), Univ. Montpellier, Montpellier, France
| | - Thibaut Mazard
- Medical Oncology Department, Institut du Cancer de Montpellier (ICM), Univ. Montpellier, Montpellier, France
| |
Collapse
|
10
|
Bano S, Obaid G, Swain JWR, Yamada M, Pogue BW, Wang K, Hasan T. NIR Photodynamic Destruction of PDAC and HNSCC Nodules Using Triple-Receptor-Targeted Photoimmuno-Nanoconjugates: Targeting Heterogeneity in Cancer. J Clin Med 2020; 9:E2390. [PMID: 32726945 PMCID: PMC7464411 DOI: 10.3390/jcm9082390] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 07/17/2020] [Indexed: 12/22/2022] Open
Abstract
Receptor heterogeneity in cancer is a major limitation of molecular targeting for cancer therapeutics. Single-receptor-targeted treatment exerts selection pressures that result in treatment escape for low-receptor-expressing tumor subpopulations. To overcome this potential for heterogeneity-driven resistance to molecular targeted photodynamic therapy (PDT), we present for the first time a triple-receptor-targeted photoimmuno-nanoconjugate (TR-PIN) platform. TR-PIN functionalization with cetuximab, holo-transferrin, and trastuzumab conferred specificity for epidermal growth factor receptor (EGFR), transferrin receptor (TfR), and human epidermal growth factor receptor 2 (HER-2), respectively. The TR-PINs exhibited up to a 24-fold improvement in cancer cell binding compared with EGFR-specific cetuximab-targeted PINs (Cet-PINs) in low-EGFR-expressing cell lines. Photodestruction using TR-PINs was significantly higher than the monotargeted Cet-PINs in heterocellular 3D in vitro models of heterogeneous pancreatic ductal adenocarcinoma (PDAC; MIA PaCa-2 cells) and heterogeneous head and neck squamous cell carcinoma (HNSCC, SCC9 cells) containing low-EGFR-expressing T47D (high TfR) or SKOV-3 (high HER-2) cells. Through their capacity for multiple tumor target recognition, TR-PINs can serve as a unique and amenable platform for the effective photodynamic eradication of diverse tumor subpopulations in heterogeneous cancers to mitigate escape for more complete and durable treatment responses.
Collapse
Affiliation(s)
- Shazia Bano
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (S.B.); (G.O.); (J.W.R.S.); (M.Y.)
| | - Girgis Obaid
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (S.B.); (G.O.); (J.W.R.S.); (M.Y.)
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA
| | - Joseph W. R. Swain
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (S.B.); (G.O.); (J.W.R.S.); (M.Y.)
| | - Marina Yamada
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (S.B.); (G.O.); (J.W.R.S.); (M.Y.)
- Department of Health Sciences, Northeastern University, Boston, MA 02115, USA
| | - Brian W. Pogue
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA;
| | - Kenneth Wang
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA;
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (S.B.); (G.O.); (J.W.R.S.); (M.Y.)
- Division of Health Sciences and Technology, Harvard University and Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| |
Collapse
|
11
|
Miller AL, Garcia PL, Yoon KJ. Developing effective combination therapy for pancreatic cancer: An overview. Pharmacol Res 2020; 155:104740. [PMID: 32135247 DOI: 10.1016/j.phrs.2020.104740] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 02/08/2023]
Abstract
Pancreatic cancer is a fatal disease. The five-year survival for patients with all stages of this tumor type is less than 10%, with a majority of patients dying from drug resistant, metastatic disease. Gemcitabine has been a standard of care for the treatment of pancreatic cancer for over 20 years, but as a single agent gemcitabine is not curative. Since the only therapeutic option for the over 80 percent of pancreatic cancer patients ineligible for surgical resection is chemotherapy with or without radiation, the last few decades have seen a significant effort to develop effective therapy for this disease. This review addresses preclinical and clinical efforts to identify agents that target molecular characteristics common to pancreatic tumors and to develop mechanism-based combination approaches to therapy. Some of the most promising combinations include agents that inhibit transcription dependent on BET proteins (BET bromodomain inhibitors) or that inhibit DNA repair mediated by PARP (PARP inhibitors).
Collapse
Affiliation(s)
- Aubrey L Miller
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham AL, 35294 USA
| | - Patrick L Garcia
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham AL, 35294 USA
| | - Karina J Yoon
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham AL, 35294 USA.
| |
Collapse
|
12
|
Milazzo FM, Vesci L, Anastasi AM, Chiapparino C, Rosi A, Giannini G, Taddei M, Cini E, Faltoni V, Petricci E, Battistuzzi G, Salvini L, Carollo V, De Santis R. ErbB2 Targeted Epigenetic Modulation: Anti-tumor Efficacy of the ADC Trastuzumab-HDACi ST8176AA1. Front Oncol 2020; 9:1534. [PMID: 32039017 PMCID: PMC6989603 DOI: 10.3389/fonc.2019.01534] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 12/19/2019] [Indexed: 12/16/2022] Open
Abstract
Targeted therapy using monoclonal antibodies conjugated to toxins is gaining space in the treatment of cancer. Here, we report the anti-tumor effect of a new antibody drug conjugate (ADC) delivering a HDAC inhibitor to ErbB2+ solid tumors. Trastuzumab was partially reduced with tris [2-carboxyethyl] phosphine (TCEP) and conjugated to ST7464AA1, the active form of the prodrug HDAC inhibitor ST7612AA1, through a maleimide-thiol linker to obtain the Antibody Drug Conjugate (ADC) ST8176AA1. The average drug/antibody ratio (DAR) was 4.5 as measured by hydrophobic interaction chromatography (HIC). Binding of ST8176AA1 to ErbB2 receptor and internalization in tumor cells were investigated by enzyme-linked immunosorbent assay (ELISA), surface plasmon resonance (SPR), cytofluorimetry, and High Content Screening (HCS) Imaging. The biological activity of the ADC was evaluated in vitro and in vivo by measuring cell proliferation/cell cycle, apoptosis/DNA damage, tubulin, and histone acetylation and modulation of Epithelial/Mesenchymal Transition (EMT) markers. Receptor binding and internalization of ST8176AA1 were confirmed to be similar to trastuzumab. Higher anti-tumor activity of ST8176AA1 compared to trastuzumab was observed in vitro in tumor cell lines. Such higher activity correlated with increased acetylation of histones and alfa-tubulin as a consequence of HDAC inhibitor-mediated epigenetic modulation that also induced increased expression of ErbB2 and estrogen receptor in triple negative breast cancer cells. Consistently with in vitro data, ST8176AA1 exhibited higher tumor growth inhibition than trastuzumab in xenograft models of ovary and colon carcinoma and in two patient-derived xenograft (PDX) models of pancreatic carcinoma. Immunohistochemistry analysis of tumor masses showed lower expression of the proliferation marker Ki67 and higher expression of cleaved caspase-3 in mice treated with the ADC compared to those treated with trastuzumab and results correlated with increased acetylation of both histones and tubulin. Collectively, present data indicate that ADC ST8176AA1 can target epigenetic modulation to ErbB2+ tumors. Interestingly, the amount of HDACi estimated to be delivered at the ST8176AA1 effective dose would correspond to ~1/1,000 of ST7612AA1 effective dose. Therefore, ST8176AA1 is an attractive new therapeutic candidate because it exhibits increased anti-tumor potency compared to trastuzumab by exerting epigenetic modulation at a much safer dose compared to standard HDACi-based therapeutic protocols.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Maurizio Taddei
- Dipartimento di Biotecnologia, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Elena Cini
- Dipartimento di Biotecnologia, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | | | - Elena Petricci
- Dipartimento di Biotecnologia, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | | | | | | | | |
Collapse
|
13
|
Larbouret C, Poul MA, Chardès T. [Mimicking polyclonal immune response in therapy: from combination of two monoclonal antibodies to oligoclonal antibody-based mixtures]. Med Sci (Paris) 2020; 35:1083-1091. [PMID: 31903921 DOI: 10.1051/medsci/2019216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Monoclonal antibodies have revolutionized the treatment of many diseases, but their clinical effectiveness remains limited in some cases. Associations of antibodies binding to the same target (homo-combination) or to several different targets (hetero-combination), thereby mimicking a polyclonal humoral immune response, have demonstrated a therapeutic improvement in pre-clinical and clinical trials, mainly in the field of oncology and infectious diseases. The combinations increase the efficacy of the biological responses and override resistance mechanisms observed with antibody monotherapy. The most common method of formulating and administering antibody combinations is a separate formulation, with sequential injection of each antibody as individual drug substance. Alternatively, combined formulations are developed where the separately-produced antibodies are mixed before administration or produced simultaneously by a single cell line, or a mixture of cell lines as a polyclonal master cell bank. The regulation, the toxicity and the injection sequence of these oligoclonal antibody-based mixtures remain points to be clarified and optimized for a better therapeutic effect.
Collapse
Affiliation(s)
- Christel Larbouret
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Inserm U1194, Université de Montpellier, Institut régional du Cancer de Montpellier (ICM), 34298 Montpellier, France
| | - Marie-Alix Poul
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Inserm U1194, Université de Montpellier, Institut régional du Cancer de Montpellier (ICM), 34298 Montpellier, France
| | - Thierry Chardès
- Institut de Recherche en Cancérologie de Montpellier (IRCM), Inserm U1194, Université de Montpellier, Institut régional du Cancer de Montpellier (ICM), 34298 Montpellier, France - Centre National de la Recherche Scientifique (CNRS), Paris, France
| |
Collapse
|
14
|
Chen M, Yang S, Fan L, Wu L, Chen R, Chang J, Hu J. Combined Antiangiogenic Therapy and Immunotherapy Is Effective for Pancreatic Cancer With Mismatch Repair Proficiency but High Tumor Mutation Burden: A Case Report. Pancreas 2019; 48:1232-1236. [PMID: 31609933 PMCID: PMC6830947 DOI: 10.1097/mpa.0000000000001398] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 08/13/2019] [Indexed: 12/20/2022]
Abstract
Immunotherapy has been recommended as a second-line treatment only for high microsatellite instability or DNA mismatch repair deficiency advanced pancreatic cancer in National Comprehensive Cancer Network guidelines. Here, we report a case with a good response to immunotherapy in pancreatic cancer with mismatch repair proficiency. A 55-year-old woman diagnosed with pancreatic cancer cT4N1M1 (liver, lung) who harbored ERBB2 mutations with high tumor mutation burden (TMB) underwent multiple therapies and survived 19 months. A partial response in pancreatic cancer was observed when the patient was treated with combined antiangiogenic therapy and immunotherapy after a series of ineffective treatments. Neutrophil-to-lymphocyte ratio (NLR), a predictive marker of efficacy of immunotherapy, confirmed that immunotherapy resulted in the partial response in pancreatic cancer. To our knowledge, this is the first to report advanced pancreatic cancer with mismatch repair proficiency had a good response to immunotherapy, and this is the first to report an association between high blood-based TMB or NLR and improved clinical outcomes in pancreatic cancer. Therefore, TMB may also be a biomarker for immunotherapy of pancreatic cancer, and NLR may be a prospective predictive marker for efficacy of immunotherapy in pancreatic cancer.
Collapse
Affiliation(s)
| | | | | | - Lu Wu
- Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | | | | | - Jianli Hu
- Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
15
|
Lin T, Ren Q, Zuo W, Jia R, Xie L, Lin R, Zhao H, Chen J, Lei Y, Wang P, Dong H, Huang L, Cai J, Peng Y, Yu Z, Tan J, Wang S. Valproic acid exhibits anti-tumor activity selectively against EGFR/ErbB2/ErbB3-coexpressing pancreatic cancer via induction of ErbB family members-targeting microRNAs. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:150. [PMID: 30961642 PMCID: PMC6454766 DOI: 10.1186/s13046-019-1160-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 03/31/2019] [Indexed: 12/15/2022]
Abstract
Background Deregulated ErbB signaling plays an important role in tumorigenesis of pancreatic cancer. However, patients with pancreatic cancer benefit little from current existed therapies targeting the ErbB signaling. Here, we explore the potential anti-tumor activity of Valproic acid against pancreatic cancer via targeting ErbB family members. Methods Cell viability assay and apoptosis evaluation were carried out to determine the efficacy of VPA on pancreatic cancer cells. Western blot analyses were performed to determine the expression and activation of proteins. Apoptosis enzyme-linked immunosorbent assay was used to quantify cytoplasmic histone associated DNA fragments. Lentiviral expression system was used to introduce overexpression of exogeneous genes or gene-targeting short hairpin RNAs (shRNAs). qRT-PCR was carried out to analyze the mRNAs and miRNAs expression levels. Tumor xenograft model was established to evaluate the in vivo anti-pancreatic cancer activity of VPA. Results VPA preferentially inhibited cell proliferation/survival of, and induced apoptosis in EGFR/ErbB2/ErbB3-coexpressing pancreatic cancer cells within its clinically achievable range [40~100 mg/L (0.24~0.6 mmol/L)]. Mechanistic investigations revealed that VPA treatment resulted in simultaneous significant down-regulation of EGFR, ErbB2, and ErbB3 in pancreatic cancer cells likely via induction of ErbB family members-targeting microRNAs. Moreover, the anti-pancreatic cancer activity of VPA was further validated in tumor xenograft model. Conclusions Our data strongly suggest that VPA may be added to the treatment regimens for pancreatic cancer patients with co-overexpression of the ErbB family members. Electronic supplementary material The online version of this article (10.1186/s13046-019-1160-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Tingting Lin
- Department of Urology, The 900th Hospital of the Joint Logistics Team (the Former Fuzhou General Hospital), Fujian Medical University, Fuzhou 350025, China. 156 Xi'er Huan Bei Road, Fuzhou, 350025, Fujian Province, China.,Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China.,Department of Medical Oncology, First Hospital of Sanming, Sanming, 365000, Fujian Province, China
| | - Qun Ren
- Department of Urology, The 900th Hospital of the Joint Logistics Team (the Former Fuzhou General Hospital), Fujian Medical University, Fuzhou 350025, China. 156 Xi'er Huan Bei Road, Fuzhou, 350025, Fujian Province, China.,Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Weimin Zuo
- Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China.,Department of Medical Ultrasound, Guangzhou First Peoples's Hospital, Guangzhou Medical University, Guangdong Province, Guangzhou, 510180, China
| | - Ruxue Jia
- Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Linhui Xie
- Department of Clinical Medicine, Fujian Health Vocational and Technical College, Fuzhou, 350101, Fujian Province, China
| | - Rong Lin
- Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Hu Zhao
- Department of Urology, The 900th Hospital of the Joint Logistics Team (the Former Fuzhou General Hospital), Fujian Medical University, Fuzhou 350025, China. 156 Xi'er Huan Bei Road, Fuzhou, 350025, Fujian Province, China.,Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Jin Chen
- Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Yan Lei
- Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Ping Wang
- Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Huiyue Dong
- Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Lianghu Huang
- Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Jinquan Cai
- Department of Urology, The 900th Hospital of the Joint Logistics Team (the Former Fuzhou General Hospital), Fujian Medical University, Fuzhou 350025, China. 156 Xi'er Huan Bei Road, Fuzhou, 350025, Fujian Province, China
| | - Yonghai Peng
- Department of Medical Oncology, The 900th Hospital of the Joint Logistics Team (the Former Fuzhou General Hospital), Fujian Medical University, Fuzhou, 350025, Fujian Province, China
| | - Zongyang Yu
- Department of Medical Oncology, The 900th Hospital of the Joint Logistics Team (the Former Fuzhou General Hospital), Fujian Medical University, Fuzhou, 350025, Fujian Province, China
| | - Jianming Tan
- Department of Urology, The 900th Hospital of the Joint Logistics Team (the Former Fuzhou General Hospital), Fujian Medical University, Fuzhou 350025, China. 156 Xi'er Huan Bei Road, Fuzhou, 350025, Fujian Province, China.,Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China
| | - Shuiliang Wang
- Department of Urology, The 900th Hospital of the Joint Logistics Team (the Former Fuzhou General Hospital), Fujian Medical University, Fuzhou 350025, China. 156 Xi'er Huan Bei Road, Fuzhou, 350025, Fujian Province, China. .,Fujian Key Laboratory of Transplant Biology, Affiliated Dongfang Hospital, Xiamen University School of Medicine, Fuzhou, 350025, Fujian Province, China.
| |
Collapse
|
16
|
Afatinib, an Irreversible EGFR Family Inhibitor, Shows Activity Toward Pancreatic Cancer Cells, Alone and in Combination with Radiotherapy, Independent of KRAS Status. Target Oncol 2017; 11:371-81. [PMID: 26668065 DOI: 10.1007/s11523-015-0403-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Pancreatic adenocarcinoma is characterized by a high frequency of KRAS mutations and frequent deregulation of the epidermal growth factor receptor (EGFR) and other EGFR family members such as HER2/ErbB2. The EGFR inhibitor erlotinib is approved for treatment of pancreatic cancer, but has shown modest activity in most patients. OBJECTIVE Here we investigated the activity of afatinib, a second-generation irreversible pan-EGFR family kinase inhibitor, alone or in combination with ionizing radiation, toward pancreatic cancer cells. METHODS The influence of afatinib on cell proliferation, cell cycle distribution, clonogenic survival, nuclear fragmentation, ploidy, and centrosome amplification following irradiation was determined. Expression and phosphorylation of HER receptors, Akt, DNA-PKcs, and ERK1/2 was characterized by Western blot analysis. RESULTS Afatinib was growth-inhibitory for all three cell lines but cytotoxic only toward BxPC3 (KRAS (wt)) and Capan-2 (KRAS (mut)) cells, both of which express high levels of EGFR, HER2, and HER3 receptors. Afatinib increased the radiosensitivity of BxPC3 and Capan-2 cells, prevented the radio-induced phosphorylation of Akt, and induced mitotic catastrophe following irradiation. In comparison, Panc-1 cells (KRAS (mut)) expressing low levels of EGFR family receptors were resistant to afatinib-induced radiosensitization. LIMITATIONS These results must be confirmed in vivo. CONCLUSIONS Afatinib showed cytotoxic and radiosensitizing effects toward a subset of pancreatic cancer cells which was closely correlated with expression of EGFR, HER2, and HER3 receptors, but not with KRAS status.
Collapse
|
17
|
Zhu L, Staley C, Kooby D, El-Rays B, Mao H, Yang L. Current status of biomarker and targeted nanoparticle development: The precision oncology approach for pancreatic cancer therapy. Cancer Lett 2017; 388:139-148. [PMID: 27916607 PMCID: PMC5318282 DOI: 10.1016/j.canlet.2016.11.030] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/15/2016] [Accepted: 11/24/2016] [Indexed: 12/13/2022]
Abstract
Pancreatic cancer remains one of the major causes of cancer-related mortality. The majority of pancreatic cancer patients are diagnosed at the advanced stage with unresectable and drug resistant tumors. The new treatments with the combination of chemotherapy, molecular targeted therapy, and immunotherapy have shown modest effects on therapeutic efficacy and survival of the patients. Therefore, there is an urgent need to develop effective therapeutic approaches targeting highly heterogeneous pancreatic cancer cells and tumor microenvironments. Recent advances in biomarker targeted cancer therapy and image-guided drug delivery and monitoring treatment response using multifunctional nanoparticles, also referred to as theranostic nanoparticles, offer a new opportunity of effective detection and treatment of pancreatic cancer. Increasing evidence from preclinical studies has shown the potential of applications of theranostic nanoparticles for designing precision oncology approaches for pancreatic cancer therapy. In this review, we provide an update on the current understanding and strategies for the development of targeted therapy for pancreatic cancer using nanoparticle drug carriers. We address issues concerning drug delivery barriers in stroma rich pancreatic cancer and the potential approaches to improve drug delivery efficiency, therapeutic responses and tumor imaging. Research results presented in this review suggest the development of an integrated therapy protocol through image-guided and targeted drug delivery and therapeutic effect monitoring as a promising precision oncology strategy for pancreatic cancer treatment.
Collapse
Affiliation(s)
- Lei Zhu
- Department of Surgery, Emory University School of Medicine, Atlanta, GA 30322, United States
| | - Charles Staley
- Department of Surgery, Emory University School of Medicine, Atlanta, GA 30322, United States
| | - David Kooby
- Department of Surgery, Emory University School of Medicine, Atlanta, GA 30322, United States
| | - Bassel El-Rays
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States
| | - Hui Mao
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, United States
| | - Lily Yang
- Department of Surgery, Emory University School of Medicine, Atlanta, GA 30322, United States; Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, United States.
| |
Collapse
|
18
|
Enhanced tumor-targeting selectivity by modulating bispecific antibody binding affinity and format valence. Sci Rep 2017; 7:40098. [PMID: 28067257 PMCID: PMC5220356 DOI: 10.1038/srep40098] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 11/30/2016] [Indexed: 01/07/2023] Open
Abstract
Bispecific antibodies are considered attractive bio-therapeutic agents owing to their ability to target two distinct disease mediators. Cross-arm avidity targeting of antigen double-positive cancer cells over single-positive normal tissue is believed to enhance the therapeutic efficacy, restrict major escape mechanisms and increase tumor-targeting selectivity, leading to reduced systemic toxicity and improved therapeutic index. However, the interplay of factors regulating target selectivity is not well understood and often overlooked when developing clinically relevant bispecific therapeutics. We show in vivo that dual targeting alone is not sufficient to endow selective tumor-targeting, and report the pivotal roles played by the affinity of the individual arms, overall avidity and format valence. Specifically, a series of monovalent and bivalent bispecific IgGs composed of the anti-HER2 trastuzumab moiety paired with affinity-modulated VH and VL regions of the anti-EGFR GA201 mAb were tested for selective targeting and eradication of double-positive human NCI-H358 non-small cell lung cancer target tumors over single-positive, non-target NCI-H358-HER2 CRISPR knock out tumors in nude mice bearing dual-flank tumor xenografts. Affinity-reduced monovalent bispecific variants, but not their bivalent bispecific counterparts, mediated a greater degree of tumor targeting selectivity, while the overall efficacy against the targeted tumor was not substantially affected.
Collapse
|
19
|
Nielsen CH, Jensen MM, Kristensen LK, Dahlman A, Fröhlich C, Jacobsen HJ, Poulsen TT, Lantto J, Horak ID, Kragh M, Kjaer A. In vivo imaging of therapy response to a novel pan-HER antibody mixture using FDG and FLT positron emission tomography. Oncotarget 2016; 6:37486-99. [PMID: 26460961 PMCID: PMC4741943 DOI: 10.18632/oncotarget.6060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 09/24/2015] [Indexed: 11/25/2022] Open
Abstract
Purpose Overexpression of the human epidermal growth factor receptor (HER) family and their ligands plays an important role in many cancers. Targeting multiple members of the HER family simultaneously may increase the therapeutic efficacy. Here, we report the ability to image the therapeutic response obtained by targeting HER family members individually or simultaneously using the novel monoclonal antibody (mAb) mixture Pan-HER. Experimental design and results Mice with subcutaneous BxPC-3 pancreatic adenocarcinomas were divided into five groups receiving vehicle or mAb mixtures directed against either EGFR (HER1), HER2, HER3 or all three receptors combined by Pan-HER. Small animal positron emission tomography/computed tomography (PET/CT) with 2′-deoxy-2′-[18F]fluoro-D-glucose (FDG) and 3′-deoxy-3′-[18F]fluorothymidine (FLT) was performed at baseline and at day 1 or 2 after initiation of therapy. Changes in tumor uptake of tracers were quantified and compared to reduction in tumor size. Imaging results were further validated by immunohistochemistry and qPCR. Mean FDG and FLT uptake in the Pan-HER treated group decreased by 19±4.3% and 24±3.1%, respectively. The early change in FDG and FLT uptake correlated with tumor growth at day 23 relative to day 0. Ex vivo molecular analyses of markers associated with the mechanisms of FDG and FLT uptake confirmed the in vivo imaging results. Conclusions Taken together, the study supports the use of FDG and FLT as imaging biomarkers of early response to Pan-HER therapy. FDG and FLT PET/CT imaging should be considered as imaging biomarkers in clinical evaluation of the Pan-HER mAb mixture.
Collapse
Affiliation(s)
- Carsten H Nielsen
- Minerva Imaging ApS, Copenhagen, Denmark.,Department of Clinical Physiology, Nuclear Medicine and PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Mette M Jensen
- Minerva Imaging ApS, Copenhagen, Denmark.,Department of Clinical Physiology, Nuclear Medicine and PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Lotte K Kristensen
- Minerva Imaging ApS, Copenhagen, Denmark.,Department of Clinical Physiology, Nuclear Medicine and PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | | | | | | | | | | | | | | | - Andreas Kjaer
- Minerva Imaging ApS, Copenhagen, Denmark.,Department of Clinical Physiology, Nuclear Medicine and PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
20
|
Assenat E, Azria D, Mollevi C, Guimbaud R, Tubiana-Mathieu N, Smith D, Delord JP, Samalin E, Portales F, Larbouret C, Robert B, Bibeau F, Bleuse JP, Crapez E, Ychou M, Pèlegrin A. Dual targeting of HER1/EGFR and HER2 with cetuximab and trastuzumab in patients with metastatic pancreatic cancer after gemcitabine failure: results of the "THERAPY"phase 1-2 trial. Oncotarget 2016; 6:12796-808. [PMID: 25918250 PMCID: PMC4494975 DOI: 10.18632/oncotarget.3473] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 01/22/2015] [Indexed: 12/12/2022] Open
Abstract
To improve treatment efficacy, we decided to simultaneously target HER1 and HER2 with trastuzumab and cetuximab. Following promising preclinical results, we conducted a phase 1-2 trial in advanced pancreatic cancer patients after first-line gemcitabine-based chemotherapy failure. In this single-arm, non-randomized, multicenter trial, patients received weekly cetuximab (400mg/m², then 250mg/m²). They were sequentially included in two trastuzumab dose levels: 3.0 or 4.0mg/kg, then 1.5 or 2.0mg/kg/weekly. Endpoints were the objective response rate, safety, progression-free (PFS) and overall survival (OS). During phase 1 (n=10 patients), toxicities were evenly distributed except for skin toxicities that frequently caused compliance issues. The higher dose level was defined as the trastuzumab recommended dose. During phase 2 (n=39 patients), toxicities were mainly cutaneous reactions and asthenia. No objective response was observed. Nine patients were stabilized but arrested treatment due to toxicity. Median PFS was 1.8 months (95%CI: 1.7-2.0 months) and median OS was 4.6 months (95%CI: 2.7–6.6 months). Both were positively correlated with skin toxicity severity (P=0.027 and P=0.001, respectively). Conventional phase 1 dose-escalation schedules are unsuitable for targeted therapies because most cutaneous toxicities are not considered dose-limiting toxicities. The compliance issues caused by skin toxicities were particularly detrimental because of the toxicity-response correlation.
Collapse
Affiliation(s)
- Eric Assenat
- Centre Hospitalier Régional Universitaire (CHU) de Montpellier, Montpellier, France.,Institut Régional du Cancer de Montpellier (ICM)-Val d'Aurelle, Montpellier, France
| | - David Azria
- Institut Régional du Cancer de Montpellier (ICM)-Val d'Aurelle, Montpellier, France.,IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France.,INSERM, U896, Montpellier, France.,Université Montpellier 1, Montpellier, France.,Institut Régional du Cancer de Montpellier, ICM, Montpellier, France
| | - Caroline Mollevi
- Institut Régional du Cancer de Montpellier (ICM)-Val d'Aurelle, Montpellier, France
| | - Rosine Guimbaud
- Centre Hospitalier Universitaire (CHU) de Toulouse, TSA, Toulouse Cedex, France
| | | | - Denis Smith
- Centre Hospitalier Universitaire (CHU) de Bordeaux, Talence Cedex, France
| | | | - Emmanuelle Samalin
- Institut Régional du Cancer de Montpellier (ICM)-Val d'Aurelle, Montpellier, France
| | - Fabienne Portales
- Institut Régional du Cancer de Montpellier (ICM)-Val d'Aurelle, Montpellier, France
| | - Christel Larbouret
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France.,INSERM, U896, Montpellier, France.,Université Montpellier 1, Montpellier, France.,Institut Régional du Cancer de Montpellier, ICM, Montpellier, France
| | - Bruno Robert
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France.,INSERM, U896, Montpellier, France.,Université Montpellier 1, Montpellier, France.,Institut Régional du Cancer de Montpellier, ICM, Montpellier, France
| | - Frédéric Bibeau
- Institut Régional du Cancer de Montpellier (ICM)-Val d'Aurelle, Montpellier, France
| | - Jean-Pierre Bleuse
- Institut Régional du Cancer de Montpellier (ICM)-Val d'Aurelle, Montpellier, France
| | - Evelyne Crapez
- Institut Régional du Cancer de Montpellier (ICM)-Val d'Aurelle, Montpellier, France
| | - Marc Ychou
- Centre Hospitalier Régional Universitaire (CHU) de Montpellier, Montpellier, France.,Institut Régional du Cancer de Montpellier (ICM)-Val d'Aurelle, Montpellier, France.,IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France.,INSERM, U896, Montpellier, France.,Université Montpellier 1, Montpellier, France.,Institut Régional du Cancer de Montpellier, ICM, Montpellier, France
| | - André Pèlegrin
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France.,INSERM, U896, Montpellier, France.,Université Montpellier 1, Montpellier, France.,Institut Régional du Cancer de Montpellier, ICM, Montpellier, France
| |
Collapse
|
21
|
Epidermal Growth Factor Receptor Signaling to the Mitogen Activated Protein Kinase Pathway Bypasses Ras in Pancreatic Cancer Cells. Pancreas 2016; 45:286-92. [PMID: 26262587 PMCID: PMC5891223 DOI: 10.1097/mpa.0000000000000379] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Epidermal growth factor (EGF) receptor (EGFR/HER1) is overexpressed in human pancreatic cancers. However, anti-EGFR therapy does not exhibit significant therapeutic activity with oncogenic K-ras mutation. We sought to assess the signaling relationship between EGFR and mutant K-ras, which is commonly detected in pancreatic cancer. METHODS Pancreatic cancer cells harboring mutated K-ras were treated with EGF to assess signaling from EGFR to mitogen-activated protein kinase (MAPK) pathway. The role of Ras family of proteins in transducing EGFR signals was assessed using short interfering RNA. Other components of MAPK and PI3K (phosphoinositide 3-kinase) pathways were examined for their roles in EGFR signaling. RESULTS First, EGF signaling in pancreatic cancer cells occurs selectively through HER1. Second, knockdown of all Ras isoforms failed to block EGF-mediated phosphorylation of extracellular signal-regulated kinase (ERK). Inhibition of Raf was observed to partially abrogate ERK phosphorylation, whereas MEK inhibition resulted in complete attenuation of EGF-mediated ERK phosphorylation. Finally, inhibition of phosphoinositide 3-kinase/AKT and CDC42/PAK pathways did not block EGFR signaling. CONCLUSIONS Our study results demonstrate that EGFR-mediated signaling in mutant K-ras pancreatic cancer cells does not follow canonical MAPK signaling. Our novel findings suggest the existence of alternate signaling pathways to downstream MAPK in the presence of mutant K-ras.
Collapse
|
22
|
Tian X, Shivapurkar N, Wu Z, Hwang JJ, Pishvaian MJ, Weiner LM, Ley L, Zhou D, Zhi X, Wellstein A, Marshall JL, He AR. Circulating microRNA profile predicts disease progression in patients receiving second-line treatment of lapatinib and capecitabine for metastatic pancreatic cancer. Oncol Lett 2016; 11:1645-1650. [PMID: 26998056 PMCID: PMC4774452 DOI: 10.3892/ol.2016.4101] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Accepted: 09/30/2015] [Indexed: 12/12/2022] Open
Abstract
Patients exhibiting pancreatic cancer possess poor rates of survival. Therefore, the identification of a biomarker that can be measured non-invasively and be used to predict patient outcomes is required for the successful treatment of pancreatic cancer. The present study evaluated serum microRNA (miRNA/miR) profiles in patients exhibiting pancreatic cancer, who were treated with lapatinib and capecitabine in a phase II trial. Serum samples were collected for the measurement of a panel of miRNAs (miR-21, miR-210, miR-221 and miR-7) associated with the epidermal growth factor receptor (EGFR)1 and human epidermal growth factor receptor (HER)2 pathways. Preclinically, human pancreatic cancer PANC-1, MIA PaCa-2 and BXCP-3 cell lines were utilized for miRNA and drug resistance studies. In total, 6/17 patients treated experienced disease progression following 2 cycles of treatment [non-responders (NRS)], while another 6/17 patients exhibited a stable disease state and received >4 cycles of treatment [responders (RS); range, 4–22 cycles]. Five patients withdrew from the study due to severe toxicity or mortality. The mean overall survival time was 6.5 vs. 10.4 months for NRS and RS, respectively. Significant upregulation of serum miRNAs at earlier time points (3–6 weeks) was observed in NRS. miRNA levels increased with cancer progression, and lapatinib and 5-fluorouracil (5-FU; the active form of capecitabine) treatment increased the miRNA levels (specifically miR-210 and miR-221) in the treatment-resistant pancreatic cancer PANC-1 and MIA PaCa-2 cell lines. However, lapatinib and 5-FU treatment did not increase the miRNA levels in the treatment-sensitive BXPC-3 cell line. Inhibition of miR-221 increased the sensitivity of the PANC-1 cells to treatment. In conclusion, an increase in specific serum miRNAs was associated with resistance to lapatinib and capecitabine treatment. Additional investigation is required with regard to the application of the miRNA panel investigated in the present study as a potential predictor of patient responses to anti-EGFR/HER2 treatment.
Collapse
Affiliation(s)
- Xuefei Tian
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - Narayan Shivapurkar
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - Zheng Wu
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - Jimmy J Hwang
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - Michael J Pishvaian
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - Louis M Weiner
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - Lisa Ley
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - Dan Zhou
- Department of Pathology, Georgetown University, Washington, DC 20007, USA
| | - Xiuling Zhi
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - Anton Wellstein
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - John L Marshall
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| | - Aiwu Ruth He
- Division of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20007, USA
| |
Collapse
|
23
|
Mazor Y, Oganesyan V, Yang C, Hansen A, Wang J, Liu H, Sachsenmeier K, Carlson M, Gadre DV, Borrok MJ, Yu XQ, Dall'Acqua W, Wu H, Chowdhury PS. Improving target cell specificity using a novel monovalent bispecific IgG design. MAbs 2015; 7:377-89. [PMID: 25621507 PMCID: PMC4622537 DOI: 10.1080/19420862.2015.1007816] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Monovalent bispecific IgGs cater to a distinct set of mechanisms of action but are difficult to engineer and manufacture because of complexities associated with correct heavy and light chain pairing. We have created a novel design, “DuetMab,” for efficient production of these molecules. The platform uses knobs-into-holes (KIH) technology for heterodimerization of 2 distinct heavy chains and increases the efficiency of cognate heavy and light chain pairing by replacing the native disulfide bond in one of the CH1-CL interfaces with an engineered disulfide bond. Using two pairs of antibodies, cetuximab (anti-EGFR) and trastuzumab (anti-HER2), and anti-CD40 and anti-CD70 antibodies, we demonstrate that DuetMab antibodies can be produced in a highly purified and active form, and show for the first time that monovalent bispecific IgGs can concurrently bind both antigens on the same cell. This last property compensates for the loss of avidity brought about by monovalency and improves selectivity toward the target cell.
Collapse
Key Words
- ADCC, antibody-dependent cell-mediated cytotoxicity
- Biotechnology
- CDR, complementarity determining region
- CH1, 2 and 3-heavy chain constant domain 1, 2 and 3
- CL-, light chain constant domain
- DSC-differential scanning calorimetry
- E:T, ratio of effector to target cells
- EGFR
- EGFR, epidermal growth factor receptor
- FcRn, neonatal Fc receptor
- FcγR, receptor for IgG Fc
- HER2
- IGFR, insulin like growth factor receptor
- IL-6, interleukin 6
- IgG, Immunoglobulin G
- PNGase, protein N-glycanase
- Q1q, first component of complement 1
- RAGE, receptor for advanced glycosylation
- antibody engineering
- bispecific antibody
- cancer
- disulfide
- mAbs, monoclonal antibodies
- multi-targeting
Collapse
Affiliation(s)
- Yariv Mazor
- a Department of Antibody Discovery and Protein Engineering ; MedImmune ; Gaithersburg , MD USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Phase II study of lapatinib and capecitabine in second-line treatment for metastatic pancreatic cancer. Cancer Chemother Pharmacol 2015; 76:1309-14. [PMID: 26507197 DOI: 10.1007/s00280-015-2855-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 08/25/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE Patients with metastatic, gemcitabine-refractory pancreatic cancer typically have poor survival. Erlotinib, a targeted therapy that inhibits epidermal growth factor receptor (EGFR) activity (overexpressed in 40-60 % of pancreatic cancers), was FDA approved for the treatment of patients with advanced pancreatic cancer. Human epidermal growth factor receptor 2 (HER-2), another member of the ErbB family of growth factor receptor tyrosine kinases, has also been a therapeutic target of interest in pancreatic cancer; HER-2 overexpression is found in 20 % of pancreatic cancers. Lapatinib is a tyrosine kinase inhibitor that binds to both EGFR and HER-2. We conducted a single-arm phase II study to evaluate the combination of lapatinib and capecitabine in the second-line treatment of metastatic, gemcitabine-refractory pancreatic cancer. METHODS Seventeen patients with metastatic, unresectable pancreatic cancer whose disease had progressed on first-line gemcitabine-based therapy were selected for this study. Patients were required to have an adequate performance status (ECOG 0-2) and normal hepatic and renal function prior to being enrolled. Patients received lapatinib 1250 mg PO daily 1 h before or after meals, and capecitabine 1000 mg/m(2) PO twice daily on days 1-14 of the 21-day cycle. The primary endpoint was median overall survival (OS), and the secondary endpoints were objective response rate, progression-free survival (PFS) and the safety profile of the combination therapy. Clinical toxicities were assessed according to the National Cancer Institute Common Toxicity Criteria for Adverse Events version 4.0. Radiographic response was evaluated by RECIST criteria. RESULTS Clinically, six of the 17 patients treated had disease progression (PD) after two cycles, six of 17 patients had stable disease (SD) and received more than four cycles (SD, range 4-22 cycles). For all patients, median PFS was 2.6 months (95 % CI 1.3-3.8) and median OS was 5.2 months (95 % CI 3.4-9). Treatment-related toxicities were limited to three (17 %) patients developing grade 3 adverse events such as nausea, vomiting, diarrhea and fatigue. When stratifying patients by treatment response, we found a statistically significant difference in median PFS and OS: median PFS was 1.4 months (95 % CI 1.0-1.8) in the PD group versus 4.0 months (95 % CI 1.8-6.3) in the SD group (P value = 0.001). Median OS was 2.9 months (95 % CI 0-7.3) in the PD group versus 8.3 months (95 % CI 0-21.2) in the SD group (P value = 0.023). CONCLUSIONS The combination of lapatinib and capecitabine is a tolerable regimen for patients with gemcitabine-refractory pancreatic cancer; however, this observation is based on the small number of patients enrolled in the trial. A subset of the enrolled patients had clinical benefit from treatment. Predictive biomarkers that allow selection of patients that will respond to this regimen should be further investigated.
Collapse
|
25
|
Amedei A, Niccolai E, Prisco D. Pancreatic cancer: role of the immune system in cancer progression and vaccine-based immunotherapy. Hum Vaccin Immunother 2015; 10:3354-68. [PMID: 25483688 DOI: 10.4161/hv.34392] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Pancreatic cancer (PC) is the 5th leading cause of cancer related death in the developed world with more than 260,000 deaths annually worldwide and with a dismal 5-year survival. Surgery is the only potential hope of cure for PC, but, unfortunately, only 20% PC patients is resectable at the time of diagnosis. Therapeutic research efforts have mainly focused on improvements in radio/ chemo treatments and to date, there are only a few chemotherapeutic agents that have shown to be effective against PC, including gemcitabine with or without abraxane as well as a combination of 5-FU, leucovorin, oxaliplatin and irinotecan (the so-called FOLFIRINOX regimen). The survival of patients treated with these regimens is marginal and hence we are in urgent need of novel therapeutic approaches to treat pancreatic cancer. The success of immunotherapeutic strategies in other cancers and various evidences that pancreatic adenocarcinoma elicits antitumor immune responses, suggest that immunotherapies can be a promising alternative treatment modality for this deadly disease. PC immunotherapy treatments include passive immunotherapeutic approaches, such as the use of effector cells generated in vitro, and active immunotherapeutic strategies, which goal is to stimulate an antitumor response in vivo, by means of vaccination. In this review, we describe the immune suppressive mechanisms of pancreatic cancer and discuss recent preclinical and clinical efforts toward PC immunotherapy, including passive approaches, such as the use of antibodies and active strategies (vaccination), with a special mention of most recent treatment with CRS-207 and GVAX.
Collapse
Key Words
- APC, Antigen Presenting Cells
- CEA, carcinoembryonic antigen
- CTL, Cytotoxic CD8 T cells
- DCs, Dendritic Cells
- ENO1, a-Enolasi
- IDO, Indoleamine 2,3-dioxygenase
- MUC1, Mucin-1
- NK, Natural Killer
- PC, pancreatic cancer
- Th, T helper
- Tregs, Regulatory T cells
- clinical trials
- immune response
- immunotherapy
- mAbs, monoclonal antibodies
- pancreatic cancer
- vaccine
Collapse
Affiliation(s)
- Amedeo Amedei
- a Department of Experimental and Clinical Internal Medicine ; University of Florence ; Florence , Italy
| | | | | |
Collapse
|
26
|
Brandsma AM, ten Broeke T, Nederend M, Meulenbroek LA, van Tetering G, Meyer S, Jansen JM, Beltrán Buitrago MA, Nagelkerke SQ, Németh I, Ubink R, Rouwendal G, Lohse S, Valerius T, Leusen JH, Boross P. Simultaneous Targeting of FcγRs and FcαRI Enhances Tumor Cell Killing. Cancer Immunol Res 2015; 3:1316-24. [DOI: 10.1158/2326-6066.cir-15-0099-t] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 07/03/2015] [Indexed: 11/16/2022]
|
27
|
Zalloum H, Tayyem R, Irmaileh BA, Bustanji Y, Zihlif M, Mohammad M, Rjai TA, Mubarak MS. Discovery of new human epidermal growth factor receptor-2 (HER2) inhibitors for potential use as anticancer agents via ligand-based pharmacophore modeling. J Mol Graph Model 2015; 61:61-84. [DOI: 10.1016/j.jmgm.2015.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 05/18/2015] [Accepted: 06/20/2015] [Indexed: 12/23/2022]
|
28
|
Larbouret C, Gaborit N, Poul MA, Pèlegrin A, Chardès T. [The HER3/ERBB3 receptor: the dark side of the ERBB planet]. Med Sci (Paris) 2015; 31:465-8. [PMID: 26059291 DOI: 10.1051/medsci/20153105002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Christel Larbouret
- IRCM, institut de recherche en cancérologie de Montpellier, 208, rue des Apothicaires, F-34298, Montpellier, France - Inserm U1194, F-34298, France - Université de Montpellier, Montpellier, F-34090, Montpellier, France - Institut régional du cancer de Montpellier, F-34298, Montpellier, France
| | - Nadège Gaborit
- Department of biological regulation, Weizmann Institute of Science, Rehovot, 76100, Israël
| | - Marie-Alix Poul
- IRCM, institut de recherche en cancérologie de Montpellier, 208, rue des Apothicaires, F-34298, Montpellier, France - Inserm U1194, F-34298, France - Université de Montpellier, Montpellier, F-34090, Montpellier, France - Institut régional du cancer de Montpellier, F-34298, Montpellier, France
| | - André Pèlegrin
- IRCM, institut de recherche en cancérologie de Montpellier, 208, rue des Apothicaires, F-34298, Montpellier, France - Inserm U1194, F-34298, France - Université de Montpellier, Montpellier, F-34090, Montpellier, France - Institut régional du cancer de Montpellier, F-34298, Montpellier, France
| | - Thierry Chardès
- IRCM, institut de recherche en cancérologie de Montpellier, 208, rue des Apothicaires, F-34298, Montpellier, France - Inserm U1194, F-34298, France - Université de Montpellier, Montpellier, F-34090, Montpellier, France - Institut régional du cancer de Montpellier, F-34298, Montpellier, France
| |
Collapse
|
29
|
Jacobsen HJ, Poulsen TT, Dahlman A, Kjær I, Koefoed K, Sen JW, Weilguny D, Bjerregaard B, Andersen CR, Horak ID, Pedersen MW, Kragh M, Lantto J. Pan-HER, an Antibody Mixture Simultaneously Targeting EGFR, HER2, and HER3, Effectively Overcomes Tumor Heterogeneity and Plasticity. Clin Cancer Res 2015; 21:4110-22. [PMID: 25908781 DOI: 10.1158/1078-0432.ccr-14-3312] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 04/01/2015] [Indexed: 11/16/2022]
Abstract
PURPOSE Accumulating evidence indicates a high degree of plasticity and compensatory signaling within the human epidermal growth factor receptor (HER) family, leading to resistance upon therapeutic intervention with HER family members. EXPERIMENTAL DESIGN/RESULTS We have generated Pan-HER, a mixture of six antibodies targeting each of the HER family members EGFR, HER2, and HER3 with synergistic pairs of antibodies, which simultaneously remove all three targets, thereby preventing compensatory tumor promoting mechanisms within the HER family. Pan-HER induces potent growth inhibition in a range of cancer cell lines and xenograft models, including cell lines with acquired resistance to therapeutic antibodies. Pan-HER is also highly efficacious in the presence of HER family ligands, indicating that it is capable of overcoming acquired resistance due to increased ligand production. All three target specificities contribute to the enhanced efficacy, demonstrating a distinct benefit of combined HER family targeting when compared with single-receptor targeting. CONCLUSIONS Our data show that simultaneous targeting of three receptors provides broader efficacy than targeting a single receptor or any combination of two receptors in the HER family, especially in the presence of HER family ligands. Pan-HER represents a novel strategy to deal with primary and acquired resistance due to tumor heterogeneity and plasticity in terms of HER family dependency and as such may be a viable alternative in the clinic.
Collapse
Affiliation(s)
| | | | | | - Ida Kjær
- Symphogen A/S, Ballerup, Denmark
| | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Lindberg JM, Newhook TE, Adair SJ, Walters DM, Kim AJ, Stelow EB, Parsons JT, Bauer TW. Co-treatment with panitumumab and trastuzumab augments response to the MEK inhibitor trametinib in a patient-derived xenograft model of pancreatic cancer. Neoplasia 2015; 16:562-71. [PMID: 25117978 PMCID: PMC4198828 DOI: 10.1016/j.neo.2014.06.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 06/23/2014] [Accepted: 06/26/2014] [Indexed: 12/16/2022] Open
Abstract
Kirsten rat sarcoma viral oncogene homolog (KRAS) mutations and epidermal growth factor receptor (EGFR) family signaling are drivers of tumorigenesis in pancreatic ductal adenocarcinoma (PDAC). Previous studies have demonstrated that combinatorial treatment of PDAC xenografts with the mitogen-activated protein kinase–extracellular-signal-regulated kinase (ERK) kinase1/2 (MEK1/2) inhibitor trametinib and the dual EGFR/human epidermal growth factor receptor 2 (HER2) inhibitor lapatinib provided more effective inhibition than either treatment alone. In this study, we have used the therapeutic antibodies, panitumumab (specific for EGFR) and trastuzumab (specific for HER2), to probe the role of EGFR and HER2 signaling in the proliferation of patient-derived xenograft (PDX) tumors. We show that dual anti-EGFR and anti-HER2 therapy significantly augmented the growth inhibitory effects of the MEK1/2 inhibitor trametinib in three different PDX tumors. While significant growth inhibition was observed in both KRAS mutant xenograft groups receiving trametinib and dual antibody therapy (tumors 366 and 608), tumor regression was observed in the KRAS wild-type xenografts (tumor 738) treated in the same manner. Dual antibody therapy in conjunction with trametinib was equally or more effective at inhibiting tumor growth and with lower apparent toxicity than trametinib plus lapatinib. Together, these studies provide further support for a role for EGFR and HER2 in pancreatic cancer proliferation and underscore the importance of therapeutic intervention in both the KRAS–rapidly accelerated fibrosarcoma kinase (RAF)–MEK–ERK and EGFR-HER2 pathways to achieve maximal therapeutic efficacy in patients.
Collapse
Affiliation(s)
- James M Lindberg
- Department of Surgery, University of Virginia Health System, Charlottesville, VA, 22908 USA
| | - Timothy E Newhook
- Department of Surgery, University of Virginia Health System, Charlottesville, VA, 22908 USA
| | - Sara J Adair
- Department of Surgery, University of Virginia Health System, Charlottesville, VA, 22908 USA
| | - Dustin M Walters
- Department of Surgery, University of Virginia Health System, Charlottesville, VA, 22908 USA
| | - Alison J Kim
- Department of Surgery, University of Virginia Health System, Charlottesville, VA, 22908 USA
| | - Edward B Stelow
- Department of Pathology, University of Virginia Health System, Charlottesville, VA, 22908 USA
| | - J Thomas Parsons
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia Health System, Charlottesville, VA, 22908 USA
| | - Todd W Bauer
- Department of Surgery, University of Virginia Health System, Charlottesville, VA, 22908 USA.
| |
Collapse
|
31
|
Zhou Y, Gou LT, Guo ZH, Liu HR, Wang JM, Zhou SX, Yang JL, Li XA. Fully human HER2/cluster of differentiation 3 bispecific antibody triggers potent and specific cytotoxicity of T lymphocytes against breast cancer. Mol Med Rep 2015; 12:147-54. [PMID: 25760691 PMCID: PMC4438947 DOI: 10.3892/mmr.2015.3441] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 02/10/2015] [Indexed: 02/05/2023] Open
Abstract
The use of a bispecific antibody (BsAb) is a promising and highly specific approach to cancer therapy. In the present study, a fully human recombinant single chain variable fragment BsAb against human epidermal growth factor receptor (HER)2 and cluster of differentiation (CD)3 was constructed with the aim of developing an effective treatment for breast cancer. HER2/CD3 BsAb was expressed in Chinese hamster ovary cells and purified via nickel column chromatography. Flow cytometry revealed that the HER2/CD3 BsAb was able to specifically bind to HER2 and CD3-positive cells. HER2/CD3 BsAb was able to stimulate T-cell activation and induce the lysis of cultured SKBR-3 and BT474 cells in the presence of unstimulated T lymphocytes. HER2/CD3 BsAb efficiently inhibited the growth of breast cancer tissue by activating and inducing the proliferation of tumor tissue infiltrating lymphocytes. Therefore, HER2/CD3 BsAb is a potent tool which may be a suitable candidate for the treatment of breast cancer.
Collapse
Affiliation(s)
- Yan Zhou
- Gastroenterology Tumor and Microenvironment Laboratory, Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610041, P.R. China
| | - Lan-Tu Gou
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Zhi-Hui Guo
- Gastroenterology Tumor and Microenvironment Laboratory, Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610041, P.R. China
| | - Hai-Rong Liu
- Gastroenterology Tumor and Microenvironment Laboratory, Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610041, P.R. China
| | - Jiang-Man Wang
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Shu-Xian Zhou
- Gastroenterology Tumor and Microenvironment Laboratory, Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610041, P.R. China
| | - Jin-Liang Yang
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiao-An Li
- Gastroenterology Tumor and Microenvironment Laboratory, Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610041, P.R. China
| |
Collapse
|
32
|
Ding L, Tian C, Feng S, Fida G, Zhang C, Ma Y, Ai G, Achilefu S, Gu Y. Small sized EGFR1 and HER2 specific bifunctional antibody for targeted cancer therapy. Am J Cancer Res 2015; 5:378-98. [PMID: 25699098 PMCID: PMC4329502 DOI: 10.7150/thno.10084] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 01/05/2015] [Indexed: 11/05/2022] Open
Abstract
Targeting tumors using miniature antibodies is a novel and attractive therapeutic approach, as these biomolecules exhibit low immunogenicity, rapid clearance, and high targeting specificity. However, most of the small-sized antibodies in existence do not exhibit marked anti-tumor effects, which limit their use in targeted cancer immunotherapy. To overcome this difficulty in targeting multiple biomarkers by combination therapies, we designed a new bifunctional antibody, named MaAbNA (multivalent antibody comprised of nanobody and affibody moieties), capable of targeting EGFR1 and HER2, which are widely overexpressed in a variety of tumor types. The small-sized (29 kDa) MaAbNA, which was expressed in E.coli, consists of one anti-EGFR1 nanobody and two anti-HER2 affibodies, and possesses high affinity (KD) for EGFR1 (~4.1 nM) and HER2 (~4.7 nM). In order to enhance its anti-tumor activity, MaAbNA was conjugated with adriamycin (ADM) using a PEG2000 linker, forming a new complex anticancer drug, MaAbNA-PEG2000-ADM. MaAbNA exhibited high inhibitory effects on tumor cells over-expressing both EGFR1 and HER2, but displayed minimal cytotoxicity in cells expressing low levels of EGFR1 and HER2. Moreover, MaAbNA-PEG2000-ADM displayed increased tumoricidal effects than ADM or MaAbNA alone, as well exhibited greater antitumor efficacy than EGFR1 (Cetuximab) and HER2 (Herceptin) antibody drugs. The ability of MaAbNA to regulate expression of downstream oncogenes c-jun, c-fos, c-myc, as well as AEG-1 for therapeutic potential was evaluated by qPCR and western-blot analyses. The antitumor efficacy of MaAbNA and its derivative MaAbNA-PEG2000-ADM were validated in vivo, highlighting the potential for use of MaAbNA as a highly tumor-specific dual molecular imaging probe and targeted cancer therapeutic.
Collapse
|
33
|
Liu Z, Leng EC, Gunasekaran K, Pentony M, Shen M, Howard M, Stoops J, Manchulenko K, Razinkov V, Liu H, Fanslow W, Hu Z, Sun N, Hasegawa H, Clark R, Foltz IN, Yan W. A novel antibody engineering strategy for making monovalent bispecific heterodimeric IgG antibodies by electrostatic steering mechanism. J Biol Chem 2015; 290:7535-62. [PMID: 25583986 DOI: 10.1074/jbc.m114.620260] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Producing pure and well behaved bispecific antibodies (bsAbs) on a large scale for preclinical and clinical testing is a challenging task. Here, we describe a new strategy for making monovalent bispecific heterodimeric IgG antibodies in mammalian cells. We applied an electrostatic steering mechanism to engineer antibody light chain-heavy chain (LC-HC) interface residues in such a way that each LC strongly favors its cognate HC when two different HCs and two different LCs are co-expressed in the same cell to assemble a functional bispecific antibody. We produced heterodimeric IgGs from transiently and stably transfected mammalian cells. The engineered heterodimeric IgG molecules maintain the overall IgG structure with correct LC-HC pairings, bind to two different antigens with comparable affinity when compared with their parental antibodies, and retain the functionality of parental antibodies in biological assays. In addition, the bispecific heterodimeric IgG derived from anti-HER2 and anti-EGF receptor (EGFR) antibody was shown to induce a higher level of receptor internalization than the combination of two parental antibodies. Mouse xenograft BxPC-3, Panc-1, and Calu-3 human tumor models showed that the heterodimeric IgGs strongly inhibited tumor growth. The described approach can be used to generate tools from two pre-existent antibodies and explore the potential of bispecific antibodies. The asymmetrically engineered Fc variants for antibody-dependent cellular cytotoxicity enhancement could be embedded in monovalent bispecific heterodimeric IgG to make best-in-class therapeutic antibodies.
Collapse
Affiliation(s)
- Zhi Liu
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119,
| | - Esther C Leng
- From the Departments of Therapeutic Discovery and Amgen Inc., Burnaby, British Columbia V5A 1V7, Canada
| | - Kannan Gunasekaran
- From the Departments of Therapeutic Discovery and Amgen Inc., Thousand Oaks, California 91320, and
| | - Martin Pentony
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119
| | - Min Shen
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119
| | - Monique Howard
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119
| | - Janelle Stoops
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119
| | - Kathy Manchulenko
- From the Departments of Therapeutic Discovery and Amgen Inc., Burnaby, British Columbia V5A 1V7, Canada
| | - Vladimir Razinkov
- Amgen Inc., Seattle, Washington 98119, Process and Product Development
| | - Hua Liu
- Amgen Inc., Seattle, Washington 98119, Therapeutic Innovation Unit
| | - William Fanslow
- Amgen Inc., Seattle, Washington 98119, Therapeutic Innovation Unit
| | - Zhonghua Hu
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119
| | - Nancy Sun
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119
| | - Haruki Hasegawa
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119
| | - Rutilio Clark
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119
| | - Ian N Foltz
- From the Departments of Therapeutic Discovery and Amgen Inc., Burnaby, British Columbia V5A 1V7, Canada
| | - Wei Yan
- From the Departments of Therapeutic Discovery and Amgen Inc., Seattle, Washington 98119,
| |
Collapse
|
34
|
Thomas G, ChardèS T, Gaborit N, Mollevi C, Leconet W, Robert B, Radosevic-Robin N, Penault-Llorca F, Gongora C, Colombo PE, Lazrek Y, Bras-Goncalves R, Savina A, Azria D, Bazin H, PèLegrin A, Larbouret C. HER3 as biomarker and therapeutic target in pancreatic cancer: new insights in pertuzumab therapy in preclinical models. Oncotarget 2014; 5:7138-48. [PMID: 25216528 PMCID: PMC4196190 DOI: 10.18632/oncotarget.2231] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 07/16/2014] [Indexed: 02/05/2023] Open
Abstract
The anti-HER2 antibody pertuzumab inhibits HER2 dimerization and affects HER2/HER3 dimer formation and signaling. As HER3 and its ligand neuregulin are implicated in pancreatic tumorigenesis, we investigated whether HER3 expression could be a predictive biomarker of pertuzumab efficacy in HER2low-expressing pancreatic cancer. We correlated in vitro and in vivo HER3 expression and neuregulin dependency with the inhibitory effect of pertuzumab on cell viability and tumor progression. HER3 knockdown in BxPC-3 cells led to resistance to pertuzumab therapy. Pertuzumab treatment of HER3-expressing pancreatic cancer cells increased HER3 at the cell membrane, whereas the anti-HER3 monoclonal antibody 9F7-F11 down-regulated it. Both antibodies blocked HER3 and AKT phosphorylation and inhibited HER2/HER3 heterodimerization but affected differently HER2 and HER3 homodimers. The pertuzumab/9F7-F11 combination enhanced tumor inhibition and the median survival time in mice xenografted with HER3-expressing pancreatic cancer cells. Finally, HER2 and HER3 were co-expressed in 11% and HER3 alone in 27% of the 45 pancreatic ductal adenocarcinomas analyzed by immunohistochemistry. HER3 is essential for pertuzumab efficacy in HER2low-expressing pancreatic cancer and HER3 expression might be a predictive biomarker of pertuzumab efficacy in such cancers. Further studies in clinical samples are required to confirm these findings and the interest of combining anti-HER2 and anti-HER3 therapeutic antibodies.
Collapse
Affiliation(s)
- GaëLle Thomas
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
- Institut Roche de Recherche et Médecine Translationnelle, Boulogne Bilancourt, France
| | - Thierry ChardèS
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| | - NadèGe Gaborit
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| | - Caroline Mollevi
- Unité de Biostatistiques, ICM Val d'Aurelle, Montpellier, France
| | - Wilhem Leconet
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| | - Bruno Robert
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| | - Nina Radosevic-Robin
- Department of Biopathology, The Jean Perrin Comprehensive Cancer Center and ERTICa Research Group, University of Auvergne EA4677, Clermont-Ferrand, France
| | - FréDéRique Penault-Llorca
- Department of Biopathology, The Jean Perrin Comprehensive Cancer Center and ERTICa Research Group, University of Auvergne EA4677, Clermont-Ferrand, France
| | - CéLine Gongora
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| | - Pierre-Emmanuel Colombo
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| | - Yassamine Lazrek
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
- Millegen SA, F-31681, Labège, France
| | - Rui Bras-Goncalves
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| | - Ariel Savina
- Roche SAS Scientific Partnerships, Boulogne Billancourt, France
| | - David Azria
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| | | | - André PèLegrin
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| | - Christel Larbouret
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, F-34298, France; INSERM, Unit 896, Montpellier, F-34298, France; Université Montpellier1, Montpellier, F-34298, France; ICM, Montpellier, France
| |
Collapse
|
35
|
Dual targeting of ErbB-2/ErbB-3 results in enhanced antitumor activity in preclinical models of pancreatic cancer. Oncogenesis 2014; 3:e117. [PMID: 25133484 PMCID: PMC5189962 DOI: 10.1038/oncsis.2014.31] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 07/10/2014] [Accepted: 07/15/2014] [Indexed: 12/16/2022] Open
Abstract
ErbB-3 and its ligand NRG-1β are key players in driving oncogenic signaling and resistance to therapy through the activation of the PI3K/Akt pathway. We have recently reported that EV20, a humanized anti-ErbB3 antibody, possesses a marked antitumor activity in a variety of human tumor models, including pancreatic cancer (PC). Here, we report that despite epidermal growth factor receptor overexpression, PC cells are more sensitive to NRG-1β than EGF in terms of Akt activation and cell proliferation. Using stable ErbB-3-knocked down cells and EV20 in combination with trastuzumab, we showed that dual targeting of ErbB-2 and ErbB-3 was necessary to completely abrogate ErbB-3 signaling and to impair cell proliferation. Similarly, enhanced therapeutic efficacy of the antibody combination was seen in xenografts originating from K-Ras-mutated HPAF-II and SW1990 cells, without increasing the toxicity. These results indicate that dual targeting of ErbB-2 and ErbB-3 could represent a new therapeutic approach in PC.Oncogenesis (2014) 3, e117; doi:10.1038/oncsis.2014.31; published online 18 August 2014.
Collapse
|
36
|
Leconet W, Larbouret C, Chardès T, Thomas G, Neiveyans M, Busson M, Jarlier M, Radosevic-Robin N, Pugnière M, Bernex F, Penault-Llorca F, Pasquet JM, Pèlegrin A, Robert B. Preclinical validation of AXL receptor as a target for antibody-based pancreatic cancer immunotherapy. Oncogene 2013; 33:5405-14. [PMID: 24240689 DOI: 10.1038/onc.2013.487] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 08/22/2013] [Accepted: 09/20/2013] [Indexed: 01/16/2023]
Abstract
AXL receptor tyrosine kinase (RTK) is implicated in proliferation and invasion of many cancers, particularly in pancreatic ductal adenocarcinoma (PDAC), for which new therapeutic options are urgently required. We investigated whether inhibition of AXL activity by specific monoclonal antibodies (mAbs) is efficient in limiting proliferation and migration of pancreatic cancer cells. Expression of AXL was evaluated by immunohistochemistry in 42 PDAC. The AXL role in oncogenesis was studied using the short hairpin RNA approach in a pancreatic carcinoma cell line. We further generated antihuman AXL mAbs and evaluated their inhibitory effects and the AXL downstream signaling pathways first in vitro, in a panel of pancreatic cancer cell lines and then in vivo, using subcutaneous or orthotopic pancreatic tumor xenografts. AXL receptor was found expressed in 76% (32/42) of PDAC and was predominantly present in invasive cells. The AXL-knockdown Panc-1 cells decreased in vitro cell migration, survival and proliferation, and reduced in vivo tumor growth. Two selected anti-AXL mAbs (D9 and E8), which inhibited phosphorylation of AXL and of its downstream target AKT without affecting growth arrest-specific factor 6 (GAS6) binding, induced downexpression of AXL by internalization, leading to an inhibition of proliferation and migration in the four pancreatic cancer cell lines studied. In vivo, treatment by anti-AXL mAbs significantly reduced growth of both subcutaneous and orthotopic pancreatic tumor xenografts independently of their KRAS mutation status. Our in vitro and preclinical in vivo data demonstrate that anti-human AXL mAbs could represent a new approach to the pancreatic cancer immunotherapy.
Collapse
Affiliation(s)
- W Leconet
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - C Larbouret
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - T Chardès
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - G Thomas
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - M Neiveyans
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - M Busson
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - M Jarlier
- Unité de Biostatistiques, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - N Radosevic-Robin
- Département de biopathologie Centre Jean-Perrin 63011 Clermont-Ferrand Cedex 1; ERTICa EA4677, Université d'Auvergne, Clermont-Ferrand, France
| | - M Pugnière
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - F Bernex
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - F Penault-Llorca
- Département de biopathologie Centre Jean-Perrin 63011 Clermont-Ferrand Cedex 1; ERTICa EA4677, Université d'Auvergne, Clermont-Ferrand, France
| | - J-M Pasquet
- INSERM-U876, Hématopoïèse Leucémique et Cible Thérapeutique, Université Victor Ségalen, Laboratoire d'hématologie CHU de Bordeaux, Bordeaux Cedex, France
| | - A Pèlegrin
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| | - B Robert
- INSERM-U896, IRCM, Université Montpellier1, CRLC Val d'Aurelle-Paul Lamarque, 208 rue des Apothicaires, Montpellier-Cedex 5, France
| |
Collapse
|
37
|
Inhibition of pancreatic carcinoma by homo- and heterocombinations of antibodies against EGF-receptor and its kin HER2/ErbB-2. Proc Natl Acad Sci U S A 2013; 110:15389-94. [PMID: 24003140 DOI: 10.1073/pnas.1313857110] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Due to intrinsic aggressiveness and lack of effective therapies, prognosis of pancreatic cancer remains dismal. Because the only molecular targeted drug approved for pancreatic ductal adenocarcinoma is a kinase inhibitor specific to the epidermal growth factor receptor (EGFR), and this receptor collaborates with another kinase, called HER2 (human EGF-receptor 2), we assumed that agents targeting EGFR and/or HER2 would effectively retard pancreatic ductal adenocarcinoma. Accordingly, two immunological strategies were tested in animal models: (i) two antibodies able to engage distinct epitopes of either EGFR or HER2 were separately combined, and (ii) pairs of one antibody to EGFR and another to HER2. Unlike the respective single monoclonal antibodies, which induced weak effects, both types of antibody combinations synergized in animals in terms of tumor inhibition. Immunological cooperation may not depend on receptor density, antigenic sites, or the presence of a mutant RAS protein. Nevertheless, both types of antibody combinations enhanced receptor degradation. Future efforts will examine the feasibility of each strategy and the potential of combining them to achieve sustained tumor inhibition.
Collapse
|
38
|
Anti-HER3 domain 1 and 3 antibodies reduce tumor growth by hindering HER2/HER3 dimerization and AKT-induced MDM2, XIAP, and FoxO1 phosphorylation. Neoplasia 2013; 15:335-47. [PMID: 23479511 DOI: 10.1593/neo.121960] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 01/16/2013] [Accepted: 01/18/2013] [Indexed: 12/17/2022] Open
Abstract
Blockade of the human epidermal growth factor receptor 3 (HER3) and of the downstream phosphatidylinositide 3-kinase (PI3K)/AKT pathway is a prerequisite for overcoming drug resistance and to develop novel treatments for cancers that are not eligible for the currently approved targeted therapies. To this end, we generated specific antibodies (Abs) against domain 1 (D1) and domain 3 (D3) of HER3 that recognize epitopes that do not overlap with the neuregulin-binding site. The fully human H4B-121 Ab and the mouse monoclonal Abs 16D3-C1 and 9F7-F11 inhibited tumor growth in nude mice xenografted with epidermoid, pancreatic, or triple-negative breast cancer cells. The combination of one anti-HER3 Ab and trastuzumab improved tumor growth inhibition in mice xenografted with HER2(low) cancer cell lines, for which trastuzumab alone shows no or moderate efficiency. Ab-induced disruption of tumor growth was associated with G1 cell cycle arrest, proliferation inhibition, and apoptosis of cancer cells. Anti-HER3 Abs blocked HER2/HER3 heterodimerization and HER3 phosphorylation at the cell membrane, leading to inhibition of phosphorylation of the downstream AKT targets murine double minute 2, X-linked inhibitor of apoptosis, and forkhead box O1. This study demonstrates that anti-HER3 D1 and D3 Abs could represent a new option for immunotherapy of pancreatic and triple-negative breast cancers.
Collapse
|
39
|
Shibamoto Y, Okamoto M, Kobayashi M, Ayakawa S, Iwata H, Sugie C, Mitsuishi Y, Takahashi H. Immune-maximizing (IMAX) therapy for cancer: Combination of dendritic cell vaccine and intensity-modulated radiation. Mol Clin Oncol 2013; 1:649-654. [PMID: 24649223 PMCID: PMC3915482 DOI: 10.3892/mco.2013.108] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 04/23/2013] [Indexed: 12/23/2022] Open
Abstract
A dendritic cell (DC)-based vaccine was combined with intensity-modulated radiotherapy (IMRT) or other conformal radiotherapy (RT), assuming minimal immunosuppression by such RT modalities. In this study, the outcomes in the first 40 patients are presented. The patients had recurrent, metastatic or locally advanced tumors. Nine had previously undergone full-course RT. Peripheral blood mononuclear cells obtained by leukapheresis were cultured with granulocyte-macrophage colony-stimulating factor, interleukin-4, OK-432 and prostaglandin E2 to generate DCs, which were pulsed with autologous tumor lysates or tumor-specific peptides, such as WT1. IMRT using tomotherapy, stereotactic irradiation or 3-dimensional conformal RT (3DCRT) was initially administered. The standard dose was 30 and 60 Gy in patients with and without previous RT, respectively. Every other week thereafter, up to a total of 7 times, DC vaccines were injected directly into the tumor (n=15) or administered intradermally when DCs were pulsed with tumor lysates or peptides. The tumor response was evaluated according to the response evaluation criteria in solid tumors (RECIST). RT and DC vaccines were well tolerated and there were no major complications. Three patients were not able to complete the planned DC therapy due to disease progression. For the 31 patients receiving full-dose RT, the response rate was 61% and for the 9 patients who had previously received RT, the response rate was 55%. In 9 patients, the tumor response outside the RT target volume was evaluable: 22% had a partial response (PR), 33% had stable disease (SD) and 44% had progressive disease (PD). In conclusion, a combination of IMRT (or 3DCRT) and DC vaccine is feasible and requires further investigation.
Collapse
Affiliation(s)
- Yuta Shibamoto
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Aichi 467-8601
| | - Masato Okamoto
- Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo 160-8582
| | - Masanori Kobayashi
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Aichi 467-8601; ; Seren Clinic Nagoya, Aichi 460-0008
| | - Shiho Ayakawa
- Department of Radiology, Nagoya Daini Red Cross Hospital, Aichi 466-8650
| | - Hiromitsu Iwata
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Aichi 467-8601
| | - Chikao Sugie
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Aichi 467-8601
| | | | | |
Collapse
|
40
|
Way J, Super M. The potential for cancer combination therapy with multi-targeted, single-protein pharmaceuticals. Expert Opin Drug Discov 2013; 3:147-52. [PMID: 23480218 DOI: 10.1517/17460441.3.2.147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Many diseases and disorders are best treated by a combination of drugs. Unlike small molecules, engineered proteins can be designed to incorporate multiple independent drug activities. Compared with a combination of two or more proteins, the potential benefits of a single biologic that inhibits multiple targets may include lower cost, simplified clinical testing and greater patient convenience. The evolution of HIV combination therapy is a useful point of comparison, as it occurred in an unusual regulatory environment that allowed the testing of combinations when the clinical benefit of component drugs was unproven. The epidermal growth factor receptor family of cancer targets illustrates how a particular single-molecule combination therapy might be used for cancer therapy, so some attempts to construct single-protein agents with multiple activities that include anti-EGFR moieties are reviewed. Protein engineers have created an armory of multiply-targeted antibody derivatives, but such engineered molecules often have a shorter serum half-life than IgG antibodies. New protein engineering approaches may be needed to address this problem. Nonetheless, multiply-targeted single-protein agents may be an economical solution to the problem of antibody combination therapy for cancer.
Collapse
Affiliation(s)
- Jeffrey Way
- EMD Serono Lexigen Research Center, 45 Middlesex Turnpike, Billerica, MA 01821, USA
| | | |
Collapse
|
41
|
Niccolai E, Prisco D, D'Elios MM, Amedei A. What is recent in pancreatic cancer immunotherapy? BIOMED RESEARCH INTERNATIONAL 2012; 2013:492372. [PMID: 23509731 PMCID: PMC3591222 DOI: 10.1155/2013/492372] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Accepted: 07/06/2012] [Indexed: 12/13/2022]
Abstract
Pancreatic cancer (PC) represents an unresolved therapeutic challenge, due to the poor prognosis and the reduced response to currently available treatments. Pancreatic cancer is the most lethal type of digestive cancers, with a median survival of 4-6 months. Only a small proportion of PC patients is curative by surgical resection, whilst standard chemotherapy for patients in advanced disease generates only modest effects with considerable toxic damages. Thus, new therapeutic approaches, specially specific treatments such as immunotherapy, are needed. In this paper we analyze recent preclinical and clinical efforts towards immunotherapy of pancreatic cancer, including passive and active immunotherapy approaches, designed to target pancreatic-cancer-associated antigens and to elicit an antitumor response in vivo.
Collapse
Affiliation(s)
- Elena Niccolai
- Department of Internal Medicine, University of Florence and Patologia Medica Unit Department of Biomedicine, Azienda Ospedaliero-Universitaria Careggi, 50134 Florence, Italy
| | - Domenico Prisco
- Department of Medical and Surgical Critical Care, University of Florence and Patologia Medica Unit Department of Biomedicine, Azienda Ospedaliero Universitaria Careggi, 50134 Florence, Italy
| | - Mario Milco D'Elios
- Department of Internal Medicine, University of Florence and Patologia Medica Unit Department of Biomedicine, Azienda Ospedaliero-Universitaria Careggi, 50134 Florence, Italy
- Center of Oncologic Minimally Invasive Surgery, University of Florence, Largo Brambilla 3, 50134 Florence, Italy
| | - Amedeo Amedei
- Department of Internal Medicine, University of Florence and Patologia Medica Unit Department of Biomedicine, Azienda Ospedaliero-Universitaria Careggi, 50134 Florence, Italy
- Center of Oncologic Minimally Invasive Surgery, University of Florence, Largo Brambilla 3, 50134 Florence, Italy
- Division of Immunology, Department of Internal Medicine, University of Florence, Viale Pieraccini, 6, 50134 Florence, Italy
| |
Collapse
|
42
|
Liang WS, Craig DW, Carpten J, Borad MJ, Demeure MJ, Weiss GJ, Izatt T, Sinari S, Christoforides A, Aldrich J, Kurdoglu A, Barrett M, Phillips L, Benson H, Tembe W, Braggio E, Kiefer JA, Legendre C, Posner R, Hostetter GH, Baker A, Egan JB, Han H, Lake D, Stites EC, Ramanathan RK, Fonseca R, Stewart AK, Von Hoff D. Genome-wide characterization of pancreatic adenocarcinoma patients using next generation sequencing. PLoS One 2012; 7:e43192. [PMID: 23071490 PMCID: PMC3468610 DOI: 10.1371/journal.pone.0043192] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 07/19/2012] [Indexed: 12/24/2022] Open
Abstract
Pancreatic adenocarcinoma (PAC) is among the most lethal malignancies. While research has implicated multiple genes in disease pathogenesis, identification of therapeutic leads has been difficult and the majority of currently available therapies provide only marginal benefit. To address this issue, our goal was to genomically characterize individual PAC patients to understand the range of aberrations that are occurring in each tumor. Because our understanding of PAC tumorigenesis is limited, evaluation of separate cases may reveal aberrations, that are less common but may provide relevant information on the disease, or that may represent viable therapeutic targets for the patient. We used next generation sequencing to assess global somatic events across 3 PAC patients to characterize each patient and to identify potential targets. This study is the first to report whole genome sequencing (WGS) findings in paired tumor/normal samples collected from 3 separate PAC patients. We generated on average 132 billion mappable bases across all patients using WGS, and identified 142 somatic coding events including point mutations, insertion/deletions, and chromosomal copy number variants. We did not identify any significant somatic translocation events. We also performed RNA sequencing on 2 of these patients' tumors for which tumor RNA was available to evaluate expression changes that may be associated with somatic events, and generated over 100 million mapped reads for each patient. We further performed pathway analysis of all sequencing data to identify processes that may be the most heavily impacted from somatic and expression alterations. As expected, the KRAS signaling pathway was the most heavily impacted pathway (P<0.05), along with tumor-stroma interactions and tumor suppressive pathways. While sequencing of more patients is needed, the high resolution genomic and transcriptomic information we have acquired here provides valuable information on the molecular composition of PAC and helps to establish a foundation for improved therapeutic selection.
Collapse
Affiliation(s)
- Winnie S. Liang
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - David W. Craig
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - John Carpten
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | | | - Michael J. Demeure
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
- Virginia G. Piper Cancer Center Clinical Trials, Scottsdale Healthcare, Scottsdale, Arizona, United States of America
| | - Glen J. Weiss
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
- Virginia G. Piper Cancer Center Clinical Trials, Scottsdale Healthcare, Scottsdale, Arizona, United States of America
| | - Tyler Izatt
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Shripad Sinari
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Alexis Christoforides
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Jessica Aldrich
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Ahmet Kurdoglu
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Michael Barrett
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Lori Phillips
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Hollie Benson
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Waibhav Tembe
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | | | - Jeffrey A. Kiefer
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Christophe Legendre
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Richard Posner
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Galen H. Hostetter
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Angela Baker
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Jan B. Egan
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
- Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Haiyong Han
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Douglas Lake
- Arizona State University, Tempe, Arizona, United States of America
| | - Edward C. Stites
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | - Ramesh K. Ramanathan
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
- Virginia G. Piper Cancer Center Clinical Trials, Scottsdale Healthcare, Scottsdale, Arizona, United States of America
| | - Rafael Fonseca
- Mayo Clinic, Scottsdale, Arizona, United States of America
| | | | - Daniel Von Hoff
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
- Mayo Clinic, Scottsdale, Arizona, United States of America
- Virginia G. Piper Cancer Center Clinical Trials, Scottsdale Healthcare, Scottsdale, Arizona, United States of America
- * E-mail:
| |
Collapse
|
43
|
Liang WS, Craig DW, Carpten J, Borad MJ, Demeure MJ, Weiss GJ, Izatt T, Sinari S, Christoforides A, Aldrich J, Kurdoglu A, Barrett M, Phillips L, Benson H, Tembe W, Braggio E, Kiefer JA, Legendre C, Posner R, Hostetter GH, Baker A, Egan JB, Han H, Lake D, Stites EC, Ramanathan RK, Fonseca R, Stewart AK, Von Hoff D. Genome-wide characterization of pancreatic adenocarcinoma patients using next generation sequencing. PLoS One 2012. [PMID: 23071490 DOI: 10.137/journal.pone.0043192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Pancreatic adenocarcinoma (PAC) is among the most lethal malignancies. While research has implicated multiple genes in disease pathogenesis, identification of therapeutic leads has been difficult and the majority of currently available therapies provide only marginal benefit. To address this issue, our goal was to genomically characterize individual PAC patients to understand the range of aberrations that are occurring in each tumor. Because our understanding of PAC tumorigenesis is limited, evaluation of separate cases may reveal aberrations, that are less common but may provide relevant information on the disease, or that may represent viable therapeutic targets for the patient. We used next generation sequencing to assess global somatic events across 3 PAC patients to characterize each patient and to identify potential targets. This study is the first to report whole genome sequencing (WGS) findings in paired tumor/normal samples collected from 3 separate PAC patients. We generated on average 132 billion mappable bases across all patients using WGS, and identified 142 somatic coding events including point mutations, insertion/deletions, and chromosomal copy number variants. We did not identify any significant somatic translocation events. We also performed RNA sequencing on 2 of these patients' tumors for which tumor RNA was available to evaluate expression changes that may be associated with somatic events, and generated over 100 million mapped reads for each patient. We further performed pathway analysis of all sequencing data to identify processes that may be the most heavily impacted from somatic and expression alterations. As expected, the KRAS signaling pathway was the most heavily impacted pathway (P<0.05), along with tumor-stroma interactions and tumor suppressive pathways. While sequencing of more patients is needed, the high resolution genomic and transcriptomic information we have acquired here provides valuable information on the molecular composition of PAC and helps to establish a foundation for improved therapeutic selection.
Collapse
Affiliation(s)
- Winnie S Liang
- Translational Genomics Research Institute (TGen), Phoenix, Arizona, United States of America
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Ardito CM, Grüner BM, Takeuchi KK, Lubeseder-Martellato C, Teichmann N, Mazur PK, DelGiorno KE, Carpenter ES, Halbrook CJ, Hall JC, Pal D, Briel T, Herner A, Trajkovic-Arsic M, Sipos B, Liou GY, Storz P, Murray NR, Threadgill DW, Sibilia M, Washington MK, Wilson CL, Schmid RM, Raines EW, Crawford HC, Siveke JT. EGF receptor is required for KRAS-induced pancreatic tumorigenesis. Cancer Cell 2012; 22:304-17. [PMID: 22975374 PMCID: PMC3443395 DOI: 10.1016/j.ccr.2012.07.024] [Citation(s) in RCA: 403] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 05/16/2012] [Accepted: 07/31/2012] [Indexed: 12/11/2022]
Abstract
Initiation of pancreatic ductal adenocarcinoma (PDA) is definitively linked to activating mutations in the KRAS oncogene. However, PDA mouse models show that mutant Kras expression early in development gives rise to a normal pancreas, with tumors forming only after a long latency or pancreatitis induction. Here, we show that oncogenic KRAS upregulates endogenous EGFR expression and activation, the latter being dependent on the EGFR ligand sheddase, ADAM17. Genetic ablation or pharmacological inhibition of EGFR or ADAM17 effectively eliminates KRAS-driven tumorigenesis in vivo. Without EGFR activity, active RAS levels are not sufficient to induce robust MEK/ERK activity, a requirement for epithelial transformation.
Collapse
Affiliation(s)
- Christine M. Ardito
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794
| | - Barbara M. Grüner
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | | | - Clara Lubeseder-Martellato
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Nicole Teichmann
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Pawel K. Mazur
- Department of Genetics, Department of Pediatrics, Stanford University, Stanford, CA 94305
| | - Kathleen E. DelGiorno
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794
- Department of Cancer Biology, Mayo Clinic, Florida, Jacksonville, FL 32224
| | - Eileen S. Carpenter
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794
| | - Christopher J. Halbrook
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794
- Department of Cancer Biology, Mayo Clinic, Florida, Jacksonville, FL 32224
| | - Jason C. Hall
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794
- Department of Cancer Biology, Mayo Clinic, Florida, Jacksonville, FL 32224
| | - Debjani Pal
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794
| | - Thomas Briel
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Alexander Herner
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Marija Trajkovic-Arsic
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Bence Sipos
- Department of Pathology, University Hospital Tübingen, Tübingen, Germany
| | - Geou-Yarh Liou
- Department of Cancer Biology, Mayo Clinic, Florida, Jacksonville, FL 32224
| | - Peter Storz
- Department of Cancer Biology, Mayo Clinic, Florida, Jacksonville, FL 32224
| | - Nicole R. Murray
- Department of Cancer Biology, Mayo Clinic, Florida, Jacksonville, FL 32224
| | | | - Maria Sibilia
- Institute for Cancer Research, Department of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - M. Kay Washington
- Department of Pathology, Vanderbilt University Medical Center, Nashville, TN, 37232
| | - Carole L. Wilson
- Department of Pathology, University of Washington, Seattle WA, 98195
| | - Roland M. Schmid
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Elaine W. Raines
- Department of Pathology, University of Washington, Seattle WA, 98195
| | - Howard C. Crawford
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794
- Department of Cancer Biology, Mayo Clinic, Florida, Jacksonville, FL 32224
- Department of Research, Veterans Affairs Medical Center, Northport, NY 11768
- Correspondence: (HCC); (JTS), listed alphabetically
| | - Jens T. Siveke
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
- Correspondence: (HCC); (JTS), listed alphabetically
| |
Collapse
|
45
|
Kelber JA, Reno T, Kaushal S, Metildi C, Wright T, Stoletov K, Weems JM, Park FD, Mose E, Wang Y, Hoffman RM, Lowy AM, Bouvet M, Klemke RL. KRas induces a Src/PEAK1/ErbB2 kinase amplification loop that drives metastatic growth and therapy resistance in pancreatic cancer. Cancer Res 2012; 72:2554-64. [PMID: 22589274 DOI: 10.1158/0008-5472.can-11-3552] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Early biomarkers and effective therapeutic strategies are desperately needed to treat pancreatic ductal adenocarcinoma (PDAC), which has a dismal 5-year patient survival rate. Here, we report that the novel tyrosine kinase PEAK1 is upregulated in human malignancies, including human PDACs and pancreatic intraepithelial neoplasia (PanIN). Oncogenic KRas induced a PEAK1-dependent kinase amplification loop between Src, PEAK1, and ErbB2 to drive PDAC tumor growth and metastasis in vivo. Surprisingly, blockade of ErbB2 expression increased Src-dependent PEAK1 expression, PEAK1-dependent Src activation, and tumor growth in vivo, suggesting a mechanism for the observed resistance of patients with PDACs to therapeutic intervention. Importantly, PEAK1 inactivation sensitized PDAC cells to trastuzumab and gemcitabine therapy. Our findings, therefore, suggest that PEAK1 is a novel biomarker, critical signaling hub, and new therapeutic target in PDACs.
Collapse
Affiliation(s)
- Jonathan A Kelber
- Department of Pathology, Division of Surgical Oncology, UCSD, La Jolla, CA 92093, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Abstract
Antibodies capable of targeting more than one antigen are envisioned to expand therapeutic efficacy in complex disease settings. Several strategies have been developed to achieve multiple targeting, including antibody mixtures and bispecific formats. In recent years, several dual- and pan-specific antibodies have been described and represent an alternative approach. These antibodies bind to different targets using a single antigen-combining site while maintaining high affinity and specificity, thus challenging the 'one antibody, one antigen' dogma. Despite certain drawbacks, the simple IgG format of this drug class enables rapid progression into the clinic.
Collapse
|
47
|
In pancreatic carcinoma, dual EGFR/HER2 targeting with cetuximab/trastuzumab is more effective than treatment with trastuzumab/erlotinib or lapatinib alone: implication of receptors' down-regulation and dimers' disruption. Neoplasia 2012; 14:121-30. [PMID: 22431920 DOI: 10.1593/neo.111602] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 01/31/2012] [Accepted: 02/03/2012] [Indexed: 12/19/2022] Open
Abstract
We previously demonstrated the synergistic therapeutic effect of the cetuximab (anti-epidermal growth factor receptor [EGFR] monoclonal antibody, mAb)-trastuzumab (anti-HER2 mAb) combination (2mAbs therapy) in HER2(low) human pancreatic carcinoma xenografts. Here, we compared the 2mAbs therapy, the erlotinib (EGFR tyrosine kinase inhibitor [TKI])-trastuzumab combination and lapatinib alone (dual HER2/EGFR TKI) and explored their possible mechanisms of action. The effects on tumor growth and animal survival of the three therapies were assessed in nude mice xenografted with the human pancreatic carcinoma cell lines Capan-1 and BxPC-3. After therapy, EGFR and HER2 expression and AKT phosphorylation in tumor cells were analyzed by Western blot analysis. EGFR/HER2 heterodimerization was quantified in BxPC-3 cells by time-resolved FRET. In K-ras-mutated Capan-1 xenografts, the 2mAbs therapy gave significantly higher inhibition of tumor growth than the erlotinib/trastuzumab combination, whereas in BxPC-3 (wild-type K-ras) xenografts, the erlotinib/trastuzumab combination showed similar growth inhibition but fewer tumor-free mice. Lapatinib showed no antitumor effect in both types of xenografts. The efficacy of the 2mAbs therapy was partly Fc-independent because F(ab')(2) fragments of the two mAbs significantly inhibited BxPC-3 growth, although with a time-limited therapeutic effect. The 2mAbs therapy was associated with a reduction of EGFR and HER2 expression and AKT phosphorylation. BxPC-3 cells preincubated with the two mAbs showed 50% less EGFR/HER2 heterodimers than controls. In pancreatic carcinoma xenografts, the 2mAbs therapy is more effective than treatments involving dual EGFR/HER2 TKIs. The mechanism of action may involve decreased AKT phosphorylation and/or disruption of EGFR/HER2 heterodimerization.
Collapse
|
48
|
de Marco A. Methodologies for the isolation of alternative binders with improved clinical potentiality over conventional antibodies. Crit Rev Biotechnol 2012; 33:40-8. [PMID: 22475460 DOI: 10.3109/07388551.2012.665353] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The availability of binders to different functional domains of the same protein or to physiologically co-operating proteins allows for the simultaneous inhibition of independent downstream signaling pathways. This multi-target approach represents a promising therapeutic strategy, as demonstrated in the case of the synergistic effect of anti-Her2 treatment based on the combined use of the trastuzumab and pertuzumab monoclonal antibodies that induce cellular cytotoxicity and impair the receptor dimerization, respectively. Therefore, a reliable selection method for the recovery of epitope-specific antibodies is highly needed. Animal immunization with short peptides resembling the epitope sequence for raising conventional antibodies represents an alternative. Panning phage displayed libraries of recombinant antibodies such as scFvs and nanobodies or of other peptide collections is another option. Although recombinant antibodies can provide the same specificity as conventional antibodies, they offer at least two further advantages: i) the protocols for the selection of epitope-specific antibodies can be rationally designed, and ii) their expression as multivalent, bispecific and biparatopic molecules is feasible. This review will analyze the recent literature concerning technical aspects related to the isolation, the expression as multivalent molecules, and the therapeutic applications of binders able to interfere with antigen functional domains. The term binder will be preferred when possible to include those molecules, such as peptides or affibodies, with at least some proven practical uses.
Collapse
Affiliation(s)
- Ario de Marco
- University of Nova Gorica (UNG), Rožna Dolina (Nova Gorica), Slovenia.
| |
Collapse
|
49
|
Clinical and immunologic evaluation of dendritic cell-based immunotherapy in combination with gemcitabine and/or S-1 in patients with advanced pancreatic carcinoma. Pancreas 2012; 41:195-205. [PMID: 21792083 DOI: 10.1097/mpa.0b013e31822398c6] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES In the current study, we have evaluated the clinical and immunological responses in patients with advanced pancreatic carcinoma who received dendritic cell (DC)-based immunotherapy in combination with gemcitabine and/or S-1. METHODS Dendritic cell-based immunotherapy (DC vaccine alone or DC vaccine plus lymphokine-activated killer [LAK] cell therapy) in combination with gemcitabine and/or S-1 has been carried out in 49 patients with inoperable pancreatic carcinoma refractory to standard treatment. RESULTS Of 49 patients, 2 patients had complete remission, 5 had partial remission, and 10 had stable disease. Prolongation of survival in this cohort was highly likely (median survival, 360 days). Survival of patients receiving DC vaccine and chemotherapy plus LAK cell therapy was longer than those receiving DC vaccine in combination with chemotherapy but no LAK cells. Increased numbers of cancer antigen-specific cytotoxic T cells and decreased regulatory T cells were observed in several patients on immunotherapy, but increased overall survival time tended to be associated only with the latter. None of the patients experienced grade 3 or worse adverse events during the treatment period. CONCLUSIONS Dendritic cell vaccine-based immunotherapy combined with chemotherapy was shown to be safe and possibly effective in patients with advanced pancreatic cancer refractory to standard treatment.
Collapse
|
50
|
Dodson LF, Hawkins WG, Goedegebuure P. Potential targets for pancreatic cancer immunotherapeutics. Immunotherapy 2011; 3:517-37. [PMID: 21463193 DOI: 10.2217/imt.11.10] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Pancreatic adenocarcinoma is the fourth leading cause of cancer death with an overall 5-year survival of less than 5%. As there is ample evidence that pancreatic adenocarcinomas elicit antitumor immune responses, identification of pancreatic cancer-associated antigens has spurred the development of vaccination-based strategies for treatment. While promising results have been observed in animal tumor models, most clinical studies have found only limited success. As most trials were performed in patients with advanced pancreatic cancer, the contribution of immune suppressor mechanisms should be taken into account. In this article, we detail recent work in tumor antigen vaccination and the recently identified mechanisms of immune suppression in pancreatic cancer. We offer our perspective on how to increase the clinical efficacy of vaccines for pancreatic cancer.
Collapse
Affiliation(s)
- Lindzy F Dodson
- Washington University School of Medicine, Department of Surgery, Saint Louis, MO 63110, USA.
| | | | | |
Collapse
|