1
|
Zhang C, Yan W, Liu Y, Tang M, Teng Y, Wang F, Hu X, Zhao M, Yang J, Li Y. Structure-based design and synthesis of BML284 derivatives: A novel class of colchicine-site noncovalent tubulin degradation agents. Eur J Med Chem 2024; 268:116265. [PMID: 38430854 DOI: 10.1016/j.ejmech.2024.116265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/07/2024] [Accepted: 02/18/2024] [Indexed: 03/05/2024]
Abstract
Our previous studies have demonstrated that BML284 is a colchicine-site tubulin degradation agent. To improve its antiproliferative properties, 45 derivatives or analogs of BML284 were designed and synthesized based on the cocrystal structure of BML284 and tubulin. Among them, 5i was the most potent derivative, with IC50 values ranging from 0.02 to 0.05 μM against the five tested tumor cell lines. Structure-activity relationship studies verified that the N1 atom of the pyrimidine ring was the key functional group for its tubulin degradation ability. The 5i-tubulin cocrystal complex revealed that the binding pattern of 5i to tubulin is similar to that of BML284. However, replacing the benzodioxole ring with an indole ring strengthened the hydrogen bond formed by the 2-amino group with E198, which improved the antiproliferative activity of 5i. Compound 5i effectively suppressed tumor growth at an intravenous dose of 40 mg/kg (every 2 days) in paclitaxel sensitive A2780S and paclitaxel resistant A2780T ovarian xenograft models, with tumor growth inhibition values of 79.4% and 82.0%, respectively, without apparent side effects, showing its potential to overcome multidrug resistance. This study provided a successful example of crystal structure-guided discovery of 5i as a colchicine-targeted tubulin degradation agent, expanding the scope of targeted protein degradation.
Collapse
Affiliation(s)
- Chufeng Zhang
- Innovation Center of Nursing Research, Nursing Key Laboratory of Sichuan Province, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Wei Yan
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yan Liu
- National Facility for Translational Medicine (Sichuan), West China Hospital, Sichuan University, 610041, Sichuan, China
| | - Minghai Tang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yaxin Teng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Fang Wang
- Innovation Center of Nursing Research, Nursing Key Laboratory of Sichuan Province, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Xiuying Hu
- Innovation Center of Nursing Research, Nursing Key Laboratory of Sichuan Province, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Min Zhao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Jianhong Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Yong Li
- Innovation Center of Nursing Research, Nursing Key Laboratory of Sichuan Province, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, 610041, Sichuan, China.
| |
Collapse
|
2
|
Pluripotent Core in Bovine Embryos: A Review. Animals (Basel) 2022; 12:ani12081010. [PMID: 35454256 PMCID: PMC9032358 DOI: 10.3390/ani12081010] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/31/2022] [Accepted: 04/11/2022] [Indexed: 11/17/2022] Open
Abstract
Early development in mammals is characterized by the ability of each cell to produce a complete organism plus the extraembryonic, or placental, cells, defined as pluripotency. During subsequent development, pluripotency is lost, and cells begin to differentiate to a particular cell fate. This review summarizes the current knowledge of pluripotency features of bovine embryos cultured in vitro, focusing on the core of pluripotency genes (OCT4, NANOG, SOX2, and CDX2), and main chemical strategies for controlling pluripotent networks during early development. Finally, we discuss the applicability of manipulating pluripotency during the morula to blastocyst transition in cattle species.
Collapse
|
3
|
Liu J, Campagna J, John V, Damoiseaux R, Mokhonova E, Becerra D, Meng H, McNally EM, Pyle AD, Kramerova I, Spencer MJ. A Small-Molecule Approach to Restore a Slow-Oxidative Phenotype and Defective CaMKIIβ Signaling in Limb Girdle Muscular Dystrophy. Cell Rep Med 2020; 1:100122. [PMID: 33205074 PMCID: PMC7659555 DOI: 10.1016/j.xcrm.2020.100122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 08/07/2020] [Accepted: 09/21/2020] [Indexed: 12/21/2022]
Abstract
Mutations in CAPN3 cause limb girdle muscular dystrophy R1 (LGMDR1, formerly LGMD2A) and lead to progressive and debilitating muscle wasting. Calpain 3 deficiency is associated with impaired CaMKIIβ signaling and blunted transcriptional programs that encode the slow-oxidative muscle phenotype. We conducted a high-throughput screen on a target of CaMKII (Myl2) to identify compounds to override this signaling defect; 4 were tested in vivo in the Capn3 knockout (C3KO) model of LGMDR1. The leading compound, AMBMP, showed good exposure and was able to reverse the LGMDR1 phenotype in vivo, including improved oxidative properties, increased slow fiber size, and enhanced exercise performance. AMBMP also activated CaMKIIβ signaling, but it did not alter other pathways known to be associated with muscle growth. Thus, AMBMP treatment activates CaMKII and metabolically reprograms skeletal muscle toward a slow muscle phenotype. These proof-of-concept studies lend support for an approach to the development of therapeutics for LGMDR1.
Collapse
MESH Headings
- Acyltransferases/genetics
- Acyltransferases/metabolism
- Animals
- Calcium-Calmodulin-Dependent Protein Kinase Type 2/genetics
- Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism
- Calpain/deficiency
- Calpain/genetics
- Cardiac Myosins/genetics
- Cardiac Myosins/metabolism
- Cell Line
- Creatine Kinase, Mitochondrial Form/genetics
- Creatine Kinase, Mitochondrial Form/metabolism
- Female
- Gene Expression Regulation
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle Proteins/deficiency
- Muscle Proteins/genetics
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Muscle, Skeletal/pathology
- Muscular Dystrophies, Limb-Girdle/drug therapy
- Muscular Dystrophies, Limb-Girdle/genetics
- Muscular Dystrophies, Limb-Girdle/metabolism
- Muscular Dystrophies, Limb-Girdle/pathology
- Myoblasts/drug effects
- Myoblasts/metabolism
- Myoblasts/pathology
- Myosin Light Chains/genetics
- Myosin Light Chains/metabolism
- Oxidative Stress
- Phenotype
- Physical Conditioning, Animal
- Protein Isoforms/genetics
- Protein Isoforms/metabolism
- Pyrimidines/pharmacology
- Signal Transduction
- Small Molecule Libraries/pharmacology
Collapse
Affiliation(s)
- Jian Liu
- Department of Neurology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA
| | - Jesus Campagna
- Department of Neurology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA
| | - Varghese John
- Department of Neurology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA
| | - Robert Damoiseaux
- Department of Pharmacology, David Geffen School of Medicine and Molecular Screening Shared Resource, Crump Imaging Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ekaterina Mokhonova
- Department of Neurology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA
| | - Diana Becerra
- Department of Neurology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA
| | - Huan Meng
- Department of Medicine, David Geffen School of Medicine and California Nanosystems Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Elizabeth M. McNally
- Center for Genetic Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - April D. Pyle
- Department of Microbiology, Immunology and Medical Genetics, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA
| | - Irina Kramerova
- Department of Neurology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA
| | - Melissa J. Spencer
- Department of Neurology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA
| |
Collapse
|
4
|
Collins C, Ventrella R, Mitchell BJ. Building a ciliated epithelium: Transcriptional regulation and radial intercalation of multiciliated cells. Curr Top Dev Biol 2020; 145:3-39. [PMID: 34074533 DOI: 10.1016/bs.ctdb.2020.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The epidermis of the Xenopus embryo has emerged as a powerful tool for studying the development of a ciliated epithelium. Interspersed throughout the epithelium are multiciliated cells (MCCs) with 100+ motile cilia that beat in a coordinated manner to generate fluid flow over the surface of the cell. MCCs are essential for various developmental processes and, furthermore, ciliary dysfunction is associated with numerous pathologies. Therefore, understanding the cellular mechanisms involved in establishing a ciliated epithelium are of particular interest. MCCs originate in the inner epithelial layer of Xenopus skin, where Notch signaling plays a critical role in determining which progenitors will adopt a ciliated cell fate. Then, activation of various transcriptional regulators, such as GemC1 and MCIDAS, initiate the MCC transcriptional program, resulting in centriole amplification and the formation of motile cilia. Following specification and differentiation, MCCs undergo the process of radial intercalation, where cells apically migrate from the inner layer to the outer epithelial layer. This process involves the cooperation of various cytoskeletal networks, activation of various signaling molecules, and changes in cell-ECM and cell-cell adhesion. Coordination of these cellular processes is required for complete incorporation into the outer epithelial layer and generation of a functional ciliated epithelium. Here, we highlight recent advances made in understanding the transcriptional cascades required for MCC specification and differentiation and the coordination of cellular processes that facilitate radial intercalation. Proper regulation of these signaling pathways and processes are the foundation for developing a ciliated epithelium.
Collapse
Affiliation(s)
- Caitlin Collins
- Department of Cell and Developmental Biology, Lurie Comprehensive Cancer Center, Northwestern University, Feinberg School of Medicine, Chicago, IL, United States
| | - Rosa Ventrella
- Department of Cell and Developmental Biology, Lurie Comprehensive Cancer Center, Northwestern University, Feinberg School of Medicine, Chicago, IL, United States
| | - Brian J Mitchell
- Department of Cell and Developmental Biology, Lurie Comprehensive Cancer Center, Northwestern University, Feinberg School of Medicine, Chicago, IL, United States.
| |
Collapse
|