1
|
Melo N, Belyaeva OV, Berger WK, Halasz L, Yu J, Pilli N, Yang Z, Klyuyeva AV, Elmets CA, Atigadda V, Muccio DD, Kane MA, Nagy L, Kedishvili NY, Renfrow MB. Next-generation retinoid X receptor agonists increase ATRA signaling in organotypic epithelium cultures and have distinct effects on receptor dynamics. J Biol Chem 2023; 299:102746. [PMID: 36436565 PMCID: PMC9807999 DOI: 10.1016/j.jbc.2022.102746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/26/2022] Open
Abstract
Retinoid X receptors (RXRs) are nuclear transcription factors that partner with other nuclear receptors to regulate numerous physiological processes. Although RXR represents a valid therapeutic target, only a few RXR-specific ligands (rexinoids) have been identified, in part due to the lack of clarity on how rexinoids selectively modulate RXR response. Previously, we showed that rexinoid UAB30 potentiates all-trans-retinoic acid (ATRA) signaling in human keratinocytes, in part by stimulating ATRA biosynthesis. Here, we examined the mechanism of action of next-generation rexinoids UAB110 and UAB111 that are more potent in vitro than UAB30 and the FDA-approved Targretin. Both UAB110 and UAB111 enhanced ATRA signaling in human organotypic epithelium at a 50-fold lower concentration than UAB30. This was consistent with the 2- to 5- fold greater increase in ATRA in organotypic epidermis treated with UAB110/111 versus UAB30. Furthermore, at 0.2 μM, UAB110/111 increased the expression of ATRA genes up to 16-fold stronger than Targretin. The less toxic and more potent UAB110 also induced more changes in differential gene expression than Targretin. Additionally, our hydrogen deuterium exchange mass spectrometry analysis showed that both ligands reduced the dynamics of the ligand-binding pocket but also induced unique dynamic responses that were indicative of higher affinity binding relative to UAB30, especially for Helix 3. UAB110 binding also showed increased dynamics towards the dimer interface through the Helix 8 and Helix 9 regions. These data suggest that UAB110 and UAB111 are potent activators of RXR-RAR signaling pathways but accomplish activation through different molecular responses to ligand binding.
Collapse
Affiliation(s)
- Nathalia Melo
- O'Neil Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Olga V Belyaeva
- O'Neil Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Wilhelm K Berger
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA
| | - Laszlo Halasz
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA
| | - Jianshi Yu
- Department of Pharmaceutical Sciences, University of Maryland, Baltimore, Maryland, USA
| | - Nagesh Pilli
- Department of Pharmaceutical Sciences, University of Maryland, Baltimore, Maryland, USA
| | - Zhengrong Yang
- O'Neil Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Alla V Klyuyeva
- O'Neil Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Craig A Elmets
- O'Neil Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Dermatology, University of Alabama at Birmingham, Birmingham, Alabama, USA; Birmingham VA Medical Center, Birmingham, Alabama, USA
| | - Venkatram Atigadda
- O'Neil Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Dermatology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Donald D Muccio
- O'Neil Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Maureen A Kane
- Department of Pharmaceutical Sciences, University of Maryland, Baltimore, Maryland, USA
| | - Laszlo Nagy
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA
| | - Natalia Y Kedishvili
- O'Neil Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA.
| | - Matthew B Renfrow
- O'Neil Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA.
| |
Collapse
|
2
|
Garner EF, Stafman LL, Williams AP, Aye JM, Goolsby C, Atigadda VR, Moore BP, Nan L, Stewart JE, Hjelmeland AB, Friedman GK, Beierle EA. UAB30, a novel RXR agonist, decreases tumorigenesis and leptomeningeal disease in group 3 medulloblastoma patient-derived xenografts. J Neurooncol 2018; 140:209-224. [PMID: 30132166 DOI: 10.1007/s11060-018-2950-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 07/12/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Group 3 tumors account for approximately 25-30% of medulloblastomas and have the worst prognosis. UAB30 is a novel synthetic rexinoid shown to have limited toxicities in humans and significant efficacy in the pediatric neuroectodermal tumor, neuroblastoma. We hypothesized that treatment with UAB30 would decrease tumorigenicity in medulloblastoma patient-derived xenografts (PDXs). METHODS Three group 3 medulloblastoma PDXs (D341, D384 and D425) were utilized. Cell viability, proliferation, migration and invasion assays were performed after treatment with UAB30 or 13-cis-retinoic acid (RA). Cell cycle analysis was completed using flow cytometry. A flank model, a cerebellar model, and a model of leptomeningeal metastasis using human medulloblastoma PDX cells was used to assess the in vivo effects of UAB30 and RA. RESULTS UAB30 treatment led to cell differentiation and decreased medulloblastoma PDX cell viability, proliferation, migration and invasion and G1 cell cycle arrest in all three PDXs similar to RA. UAB30 and RA treatment of mice bearing medulloblastoma PDX tumors resulted in a significant decrease in tumor growth and metastasis compared to vehicle treated animals. CONCLUSIONS UAB30 decreased viability, proliferation, and motility in group 3 medulloblastoma PDX cells and significantly decreased tumor growth in vivo in a fashion similar to RA, suggesting that further investigations into the potential therapeutic application of UAB30 for medulloblastoma are warranted.
Collapse
Affiliation(s)
- Evan F Garner
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Laura L Stafman
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Adele P Williams
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Jamie M Aye
- Division of Pediatric Hematology Oncology, Department of Pediatrics, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Caroline Goolsby
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Venkatram R Atigadda
- Department of Dermatology, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Blake P Moore
- Division of Pediatric Hematology Oncology, Department of Pediatrics, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Li Nan
- Division of Pediatric Hematology Oncology, Department of Pediatrics, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Jerry E Stewart
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Anita B Hjelmeland
- Department of Cell, Developmental and Integrative Biology, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Gregory K Friedman
- Division of Pediatric Hematology Oncology, Department of Pediatrics, University of Alabama, Birmingham, Birmingham, AL, USA
| | - Elizabeth A Beierle
- Division of Pediatric Surgery, Department of Surgery, University of Alabama, Birmingham, Birmingham, AL, USA.
- , Birmingham, USA.
| |
Collapse
|
3
|
Williams AP, Waters AM, Stewart JE, Atigadda VR, Mroczek-Musulman E, Muccio DD, Grubbs CJ, Beierle EA. A novel retinoid X receptor agonist, UAB30, inhibits rhabdomyosarcoma cells in vitro. J Surg Res 2018; 228:54-62. [PMID: 29907230 DOI: 10.1016/j.jss.2018.02.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 02/10/2018] [Accepted: 02/27/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND While patients with early-stage rhabdomyosarcoma (RMS) have seen steady improvement in prognosis over the last 50 y, those with advanced-stage or high-grade disease continue to have a dismal prognosis. Retinoids have been shown to cause growth suppression and terminal differentiation in RMS cells, but the toxicities associated with retinoic acid limit its use. Rexinoids provide an alternative treatment approach to retinoic acid. Rexinoids primarily bind the retinoid X receptor with minimal retinoic acid receptor binding, the entity responsible for many of the toxicities of retinoid therapies. UAB30 is a novel rexinoid with limited toxicities. We hypothesized that UAB30 would lead to decreased cell survival in RMS. MATERIALS AND METHODS Two RMS cell lines, one embryonal (RD) subtype and one alveolar (St. Jude Cancer Research Hospital 30) subtype, were used. Cells were treated with UAB30, and cytotoxicity, proliferation, mobility, and apoptosis were evaluated. RESULTS UAB30 significantly decreased RMS tumor cell viability and proliferation. Invasion, migration, and attachment-independent growth were reduced following UAB30 treatment. UAB30 also resulted in apoptosis and G1 cell cycle arrest. UAB30 affected both the alveolar and embryonal RMS cell lines in a similar fashion. CONCLUSIONS The results of these studies suggest a potential therapeutic role for the low-toxicity synthetic retinoid X receptor selective agonist, UAB30, in RMS treatment.
Collapse
Affiliation(s)
- Adele P Williams
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Alicia M Waters
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Jerry E Stewart
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Venkatram R Atigadda
- Department of Dermatology, University of Alabama, Birmingham, Birmingham, Alabama
| | | | - Donald D Muccio
- Department of Chemistry, University of Alabama, Birmingham, Birmingham, Alabama
| | - Clinton J Grubbs
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama
| | - Elizabeth A Beierle
- Department of Surgery, University of Alabama, Birmingham, Birmingham, Alabama.
| |
Collapse
|