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Overdijk MB, Strumane K, Beurskens FJ, Ortiz Buijsse A, Vermot-Desroches C, Vuillermoz BS, Kroes T, de Jong B, Hoevenaars N, Hibbert RG, Lingnau A, Forssmann U, Schuurman J, Parren PWHI, de Jong RN, Breij ECW. Dual Epitope Targeting and Enhanced Hexamerization by DR5 Antibodies as a Novel Approach to Induce Potent Antitumor Activity Through DR5 Agonism. Mol Cancer Ther 2020; 19:2126-2138. [PMID: 32847982 DOI: 10.1158/1535-7163.mct-20-0044] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/05/2020] [Accepted: 08/05/2020] [Indexed: 11/16/2022]
Abstract
Higher-order death receptor 5 (DR5) clustering can induce tumor cell death; however, therapeutic compounds targeting DR5 have achieved limited clinical efficacy. We describe HexaBody-DR5/DR5, an equimolar mixture of two DR5-specific IgG1 antibodies with an Fc-domain mutation that augments antibody hexamerization after cell surface target binding. The two antibodies do not compete for binding to DR5 as demonstrated using binding competition studies, and binding to distinct epitopes in the DR5 extracellular domain was confirmed by crystallography. The unique combination of dual epitope targeting and increased IgG hexamerization resulted in potent DR5 agonist activity by inducing efficient DR5 outside-in signaling and caspase-mediated cell death. Preclinical studies in vitro and in vivo demonstrated that maximal DR5 agonist activity could be achieved independent of Fc gamma receptor-mediated antibody crosslinking. Most optimal agonism was observed in the presence of complement complex C1, although without inducing complement-dependent cytotoxicity. It is hypothesized that C1 may stabilize IgG hexamers that are formed after binding of HexaBody-DR5/DR5 to DR5 on the plasma membrane, thereby strengthening DR5 clustering and subsequent outside-in signaling. We observed potent antitumor activity in vitro and in vivo in large panels of patient-derived xenograft models representing various solid cancers. The results of our preclinical studies provided the basis for an ongoing clinical trial exploring the activity of HexaBody-DR5/DR5 (GEN1029) in patients with malignant solid tumors.
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Affiliation(s)
| | - Kristin Strumane
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton
| | | | | | | | | | - Thessa Kroes
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton
| | - Bart de Jong
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton
| | - Naomi Hoevenaars
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton
| | | | - Andreas Lingnau
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton
| | - Ulf Forssmann
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton
| | - Janine Schuurman
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton
| | - Paul W H I Parren
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton.,Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, the Netherlands
| | - Rob N de Jong
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton
| | - Esther C W Breij
- Genmab, Utrecht, the Netherlands, Copenhagen, Denmark, Princeton.
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Moon PD, Koo HN, Jeong HJ, Na HJ, Kim SJ, Hwang GS, Han NR, Hong SH, Kim HM, Um JY. Haeamtang Induces Apoptosis of Colon Cancer HT-29 Cells through Activation of Caspase-3. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 35:897-909. [DOI: 10.1142/s0192415x07005363] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The effect of Haeamtang (HAT) on the colon cancer HT-29 cells was investigated in this study. A water extract of HAT significantly decreased the number of HT-29 cells in a dose-and time-dependent manner as determined by a MTT assay. Flow cytometry results revealed a dose- and time-dependent increase of dead cells in HT-29 cells treated with HAT extract. The anticancer activity of the H AT extract is attributed to apoptosis induced in HT-29 cells, which was demonstrated by increased caspase-3 activity and poly-ADP-ribose polymerase fragmentation. A selective caspase inhibitor, z-VAD-fmk, inhibited the HAT-induced cell death. Taken together, these results demonstrate that HAT extract induces apoptosis in HT-29 cells.
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Affiliation(s)
- Phil-Dong Moon
- Cancer Preventive Material Development Research Center, Kyung Hee University, 1 Hoegi-Dong, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Hyun-Na Koo
- Division of Medicinal Sciences, Korea Research Institute of Chemical Technology, 100 Jang-Dong, Yusung-Gu, Taejon, 305-343, Republic of Korea
| | - Hyun-Ja Jeong
- College of Pharmacy, VestibuloCochlear Research Center of Wonkwang University, Iksan, Jeonbuk, 570-749, Republic of Korea
| | - Ho-Jeong Na
- College of Pharmacy, Woosuk University, Wanju, Jeonbuk, 565-701, Republic of Korea
| | - Su-Jin Kim
- College of Pharmacy, VestibuloCochlear Research Center of Wonkwang University, Iksan, Jeonbuk, 570-749, Republic of Korea
| | - Gab-Soo Hwang
- School of Civil and Environmental Engineering, Kunsan National University, 68 Miryong-dong, Kunsan, Jeonbuk, 573-701, Republic of Korea
| | - Na-Ra Han
- Oriental Medical Science Center, College of Oriental Medicine, Kyung Hee University, 1 Hoegi-Dong, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Seung-Heon Hong
- College of Pharmacy, VestibuloCochlear Research Center of Wonkwang University, Iksan, Jeonbuk, 570-749, Republic of Korea
| | - Hyung-Min Kim
- Cancer Preventive Material Development Research Center, Kyung Hee University, 1 Hoegi-Dong, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Jae-Young Um
- Oriental Medical Science Center, College of Oriental Medicine, Kyung Hee University, 1 Hoegi-Dong, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
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Kang TH, Bang JY, Kim MH, Kang IC, Kim HM, Jeong HJ. Atractylenolide III, a sesquiterpenoid, induces apoptosis in human lung carcinoma A549 cells via mitochondria-mediated death pathway. Food Chem Toxicol 2011; 49:514-9. [DOI: 10.1016/j.fct.2010.11.038] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Revised: 11/05/2010] [Accepted: 11/26/2010] [Indexed: 10/18/2022]
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Kwon HJ, Kim TM, Ryu JM, Son SH, Hong JT, Jeong HS, Kang JS, Ahn JY, Kim SR, Ha TY, Kim DJ. Chemopreventive Effects of Elm Tree Root Extract on Colonic Aberrant Crypt Foci Induced by 1,2-Dimethylhydrazine in F344 Rats. Prev Nutr Food Sci 2008. [DOI: 10.3746/jfn.2008.13.3.157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Liu M, Kaur P, Waldeck DH, Xue C, Liu H. Fluorescence quenching mechanism of a polyphenylene polyelectrolyte with other macromolecules: cytochrome c and dendrimers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:1687-1690. [PMID: 15723457 DOI: 10.1021/la047434i] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This study investigates the fluorescence quenching of a polyphenyl based polyelectrolyte by positively charged macromolecules (proteins and dendrimers). This work shows that the fluorescence quenching of the dendrimer materials does not involve energy transfer or electron transfer but is correlated to the overall charge on the dendrimer and its size. The quenching is hypothesized to result from conformational changes that occur upon binding the polyelectrolyte to the protein or dendrimer. This mechanism is qualitatively different from that invoked for small-molecule analytes.
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Affiliation(s)
- Min Liu
- Chemistry Department, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, USA
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Lee SH, Youk ES, Lee HJ, Kho YH, Kim HM, Kim SU. Dykellic acid inhibits drug-induced caspase-3-like protease activation. Biochem Biophys Res Commun 2003; 302:539-44. [PMID: 12615068 DOI: 10.1016/s0006-291x(03)00210-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Dykellic acid is a novel microbial metabolite isolated from the broth of Westerdykella multispora F50733. Investigations on the molecular function of dykellic acid revealed that this compound partially inhibits calcium influx, resulting in a decrease in Ca(2+)-dependent endonuclease activation and DNA fragmentation induced by camptothecin. In our experiments, active caspase-3-like protease cleavage of procaspase-3, PARP, and cytosolic cytochrome c was inhibited by dykellic acid in a concentration-dependent manner when the apoptosis was induced by camptothecin as well as doxorubicin. We confirmed that dykellic acid did not bind to camptothecin using surface plasmon resonance analysis. These results suggest that dykellic acid inhibits drug-induced apoptosis via a caspase-3-like protease-suppressing mechanism. Our data provide important information on the mechanism of action of dykellic acid and indicate that this compound may be employed in the treatment of specific caspase-3-like protease-mediated diseases.
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Affiliation(s)
- Sang-Han Lee
- Korea Research Institute of Bioscience & Biotechnology, Taejon 305-333, Republic of Korea.
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