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Long ME, Koirala S, Sloan S, Brown-Burke F, Weigel C, Villagomez L, Corps K, Sharma A, Hout I, Harper M, Helmig-Mason J, Tallada S, Chen Z, Scherle P, Vaddi K, Chen-Kiang S, Di Liberto M, Meydan C, Foox J, Butler D, Mason C, Alinari L, Blaser BW, Baiocchi R. Resistance to PRMT5-targeted therapy in mantle cell lymphoma. Blood Adv 2024; 8:150-163. [PMID: 37782774 PMCID: PMC10787272 DOI: 10.1182/bloodadvances.2023010554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/16/2023] [Accepted: 09/04/2023] [Indexed: 10/04/2023] Open
Abstract
ABSTRACT Mantle cell lymphoma (MCL) is an incurable B-cell non-Hodgkin lymphoma, and patients who relapse on targeted therapies have poor prognosis. Protein arginine methyltransferase 5 (PRMT5), an enzyme essential for B-cell transformation, drives multiple oncogenic pathways and is overexpressed in MCL. Despite the antitumor activity of PRMT5 inhibition (PRT-382/PRT-808), drug resistance was observed in a patient-derived xenograft (PDX) MCL model. Decreased survival of mice engrafted with these PRMT5 inhibitor-resistant cells vs treatment-naive cells was observed (P = .005). MCL cell lines showed variable sensitivity to PRMT5 inhibition. Using PRT-382, cell lines were classified as sensitive (n = 4; 50% inhibitory concentration [IC50], 20-140 nM) or primary resistant (n = 4; 340-1650 nM). Prolonged culture of sensitive MCL lines with drug escalation produced PRMT5 inhibitor-resistant cell lines (n = 4; 200-500 nM). This resistant phenotype persisted after prolonged culture in the absence of drug and was observed with PRT-808. In the resistant PDX and cell line models, symmetric dimethylarginine reduction was achieved at the original PRMT5 inhibitor IC50, suggesting activation of alternative resistance pathways. Bulk RNA sequencing of resistant cell lines and PDX relative to sensitive or short-term-treated cells, respectively, highlighted shared upregulation of multiple pathways including mechanistic target of rapamycin kinase [mTOR] signaling (P < 10-5 and z score > 0.3 or < 0.3). Single-cell RNA sequencing analysis demonstrated a strong shift in global gene expression, with upregulation of mTOR signaling in resistant PDX MCL samples. Targeted blockade of mTORC1 with temsirolimus overcame the PRMT5 inhibitor-resistant phenotype, displayed therapeutic synergy in resistant MCL cell lines, and improved survival of a resistant PDX.
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Affiliation(s)
- Mackenzie Elizabeth Long
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Shirsha Koirala
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Shelby Sloan
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Fiona Brown-Burke
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Christoph Weigel
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Lynda Villagomez
- Division of Hematology and Oncology, Department of Pediatrics, The Ohio State University and Nationwide Children’s Hospital, Columbus, OH
| | - Kara Corps
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Archisha Sharma
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Ian Hout
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Margaret Harper
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - JoBeth Helmig-Mason
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Sheetal Tallada
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Zhengming Chen
- Division of Biostatistics, Department of Population Health Sciences, Weill Cornell Medicine, New York, NY
| | | | | | - Selina Chen-Kiang
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Maurizio Di Liberto
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Cem Meydan
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY
| | - Jonathan Foox
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY
| | - Daniel Butler
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY
| | - Christopher Mason
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY
| | - Lapo Alinari
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Bradley W. Blaser
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Robert Baiocchi
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
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Gustafson DL, Long ME. Alterations in P-glycoprotein expression in mouse tissues by doxorubicin: implications for pharmacokinetics in multiple dosing regimens. Chem Biol Interact 2001; 138:43-57. [PMID: 11640914 DOI: 10.1016/s0009-2797(01)00257-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The purpose of the studies presented here is to determine if alterations in doxorubicin (DOX) pharmacokinetics that seem to occur following multiple-dosing are due to changes in DOX elimination via P-glycoprotein (PGP) mediated transport in the liver, kidney and gut. A pharmacokinetic study in female Balb/c mice was carried out with blood and tissue DOX levels measured in animals following a single DOX treatment (6 mg/kg), and in animals following a second DOX treatment after receiving a DOX treatment a week earlier. The pharmacokinetics of DOX in blood and tissues was altered by earlier exposure to DOX, as the animals that were treated once a week for 2 weeks showed an increased rate of DOX elimination from blood and tissues following the second treatment. Immunoblot analysis of PGP expression in liver and kidney from naïve and DOX-treated mice showed an approximately 1.2-fold elevation of PGP protein in these tissues in response to DOX exposure. Immunohistochemical staining of liver and small intestine sections for PGP showed 1.6-fold and 1.9-fold increases, respectively, in the DOX-treated tissues. These results have implications both in multiple-dosing regimens, as well as multiple-drug regimens, where DOX is used in combination with other drugs that are substrates for PGP-mediated efflux. Increases in PGP expression in both hepatic and extrahepatic tissues can lead to changes in the pharmacokinetics of DOX, as well as other drugs that are transported by PGP.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism
- Animals
- Antibiotics, Antineoplastic/administration & dosage
- Antibiotics, Antineoplastic/pharmacokinetics
- Aryl Hydrocarbon Hydroxylases
- Blotting, Western
- Chromatography, High Pressure Liquid
- Cytochrome P-450 CYP3A
- Cytochrome P-450 Enzyme System/biosynthesis
- Doxorubicin/administration & dosage
- Doxorubicin/pharmacokinetics
- Drug Administration Schedule
- Female
- Fluorescent Antibody Technique, Indirect
- Image Processing, Computer-Assisted
- Injections, Intravenous
- Intestinal Mucosa/metabolism
- Kidney/metabolism
- Liver/metabolism
- Liver/pathology
- Mice
- Mice, Inbred BALB C
- Oxidoreductases, N-Demethylating/biosynthesis
- Tissue Distribution
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Affiliation(s)
- D L Gustafson
- Department of Pharmaceutical Sciences and The Cancer Center, University of Colorado Health Sciences Center, 4200 E. Ninth Avenue, C-238, Denver, CO 80262, USA.
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Thomas RS, Conolly RB, Gustafson DL, Long ME, Benjamin SA, Yang RS. A physiologically based pharmacodynamic analysis of hepatic foci within a medium-term liver bioassay using pentachlorobenzene as a promoter and diethylnitrosamine as an initiator. Toxicol Appl Pharmacol 2000; 166:128-37. [PMID: 10896854 DOI: 10.1006/taap.2000.8959] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A stochastic clonal growth model for describing quantitative changes in size and number of putative preneoplastic lesions was modified to analyze the time-course information of cell proliferation and glutathione S-transferase pi (GST-P) foci within a medium-term bioassay. The study used F344 rats and a single initiating event using diethylnitrosamine (200 mg/kg ip) at Week 0. After a 2-week recovery period, chemical treatment began by gavage administration of pentachlorobenzene (PeCB; 100 micromol/kg/day, 7 days/week) in a corn oil vehicle and continued for 6 weeks. One week after beginning gavage dosing, a two-thirds partial hepatectomy was performed and the animals were serially euthanized at 48, 120, 168, 624, and 840 h postsurgery, which corresponds to 216, 288, 336, 792, and 1008 h following the beginning of PeCB treatment, respectively. For analysis, two types of models were evaluated for describing the time-course changes in GST-P foci. First, a sequential model describing the transformation of normal cells into a homogenous initiated cell population (i.e., one-cell model). Second, a two-cell model that describes a heterogeneous foci population by splitting the initiated cell population into two distinct types. In our study, the one-cell model was unable to adequately represent the time-course data for changes in both size and number of foci. In contrast, the two-cell model, which was parameterized to describe a negative selection mechanism, produced adequate simulations of both the size and number of foci. This model-based analysis suggested that the differences between PeCB-treated and untreated animals were primarily in parameters involving the rates of cell death.
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Affiliation(s)
- R S Thomas
- Center for Environmental Toxicology and Technology, Colorado State University, Fort Collins, Colorado 80523-1680, USA
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Gustafson DL, Long ME, Thomas RS, Benjamin SA, Yang RS. Comparative hepatocarcinogenicity of hexachlorobenzene, pentachlorobenzene, 1,2,4,5-tetrachlorobenzene, and 1,4-dichlorobenzene: application of a medium-term liver focus bioassay and molecular and cellular indices. Toxicol Sci 2000; 53:245-52. [PMID: 10696772 DOI: 10.1093/toxsci/53.2.245] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Of the twelve different chlorobenzene isomers, a thorough evaluation of carcinogenicity has only been assessed on monochlorobenzene, 1,2-, and 1,4-dichlorobenzene, and hexachlorobenzene. In the studies presented here, we measured the ability of 1,4-dichlorobenzene (DCB), 1,2,4,5-tetrachlorobenzene (TeCB), pentachlorobenzene (PeCB), and hexachlorobenzene (HCB) to promote glutathione S-transferase pi (GSTP1-1) positive preneoplastic foci formation in rat liver, following diethylnitrosamine (DEN) initiation. The results from these studies show that TeCB, PeCB, and HCB all promote the formation of GSTP1-1 positive foci and that DCB does not. The numbers and area of foci were greatest following HCB promotion, and TeCB and PeCB were approximately equal in their promoting ability. Levels of hepatic CYP1A2, CYP2B1/2, non-focal GSTP1-1, and c-fos were measured in response to treatment with the 4 chlorobenzene isomers, as were reduced glutathione (GSH) and oxidized glutathione (GSSG) levels. Results from these studies show that induction of CYP1A2 and CYP2B1/2 have correlation with both the presence and degree of GSTP1-1 foci promotion by the 4 chlorobenzenes. Alterations in GSH and GSSG levels were similar in PeCB- and TeCB-treated animals in that GSSG levels were significantly decreased, whereas HCB and DCB did not have this effect, although HCB treatment led to a significant increase in GSH levels. We conclude that induction of CYP1A2 or CYP2B1/2 by chlorobenzene isomers may indicate promotional ability, and that this property might be exploited to predict the hepatocarcinogenicity of other chlorobenzene isomers.
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Affiliation(s)
- D L Gustafson
- Center for Environmental Toxicology and Technology, Department of Environmental Health, Colorado State University, Fort Collins 80523-1680, USA
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Thomas RS, Gustafson DL, Pott WA, Long ME, Benjamin SA, Yang RS. Evidence for hepatocarcinogenic activity of pentachlorobenzene with intralobular variation in foci incidence. Carcinogenesis 1998; 19:1855-62. [PMID: 9806169 DOI: 10.1093/carcin/19.10.1855] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Pentachlorobenzene (PeCB) is an important environmental contaminant derived primarily from the by-product contamination of the popular fungicides hexachlorobenzene and pentachloronitrobenzene. Its tumor-promoting activity was studied in a medium-term initiation/promotion assay in male F344 rats. Animals were given a single i.p. injection of diethylnitrosamine (200 mg/kg body weight) and 2 weeks later were administered 0.1 or 0.4 mmol/kg per day PeCB by gavage in a corn oil vehicle, 7 days/week. At the end of week 3, rats were subjected to a partial hepatectomy. Results showed that PeCB, at both doses, significantly increased both the number and area of glutathione S-transferase pi (GST-P) foci (>0.2 mm diameter) (P < 0.05). This trend was dose-dependent. In addition to increases in preneoplastic foci, liver glutathione concentrations and glutathione-associated enzymes showed significant changes in animals treated with PeCB. Glutathione reductase (GR) and gamma-glutamylcysteine synthetase (gamma-GCS) were both significantly induced in the centrilobular region. Changes in oxidized glutathione concentrations corresponded with the increase in GR activity with decreases of 40 and 30% in the low and high dose groups, respectively. No significant changes were detected in reduced glutathione concentrations. Together with changes in GR and gamma-GCS expression, a decrease in GST-P foci around the central veins was significant (P = 0.004) at the high dose. In these animals, 26% of the foci were classified as centrilobular whereas 37 and 39% of the foci were centrilobular in the low dose and control groups, respectively. Because of the co-localized nature of the changes in glutathione-associated enzymes and the decreased incidence of centrilobular foci, our results suggest that the reduced cellular environment may ultimately play a role in negatively selecting for foci growth.
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Affiliation(s)
- R S Thomas
- Center for Environmental Toxicology and Technology, Department of Environmental Health, Colorado State University, Fort Collins 80523-1680, USA.
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