1
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Brockman QR, Scherer A, McGivney GR, Gutierrez WR, Rytlewski J, Sheehan A, Warrier A, Laverty EA, Roughton G, Carnevale NC, Knepper-Adrian V, Dodd RD. Discrepancies in indel software resolution with somatic CRISPR/Cas9 tumorigenesis models. Sci Rep 2023; 13:14798. [PMID: 37684258 PMCID: PMC10491828 DOI: 10.1038/s41598-023-41109-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
CRISPR/Cas9 gene editing has evolved from a simple laboratory tool to a powerful method of in vivo genomic engineering. As the applications of CRISPR/Cas9 technology have grown, the need to characterize the breadth and depth of indels generated by editing has expanded. Traditionally, investigators use one of several publicly-available platforms to determine CRISPR/Cas9-induced indels in an edited sample. However, to our knowledge, there has not been a cross-platform comparison of available indel analysis software in samples generated from somatic in vivo mouse models. Our group has pioneered using CRISPR/Cas9 to generate somatic primary mouse models of malignant peripheral nerve sheath tumors (MPNSTs) through genetic editing of Nf1. Here, we used sequencing data from the in vivo editing of the Nf1 gene in our CRISPR/Cas9 tumorigenesis model to directly compare results across four different software platforms. By analyzing the same genetic target across a wide panel of cell lines with the same sequence file, we are able to draw systematic conclusions about the differences in these software programs for analysis of in vivo-generated indels. Surprisingly, we report high variability in the reported number, size, and frequency of indels across each software platform. These data highlight the importance of selecting indel analysis platforms specific to the context that the gene editing approach is being applied. Taken together, this analysis shows that different software platforms can report widely divergent indel data from the same sample, particularly if larger indels are present, which are common in somatic, in vivo CRISPR/Cas9 tumor models.
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Affiliation(s)
- Qierra R Brockman
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA
| | - Amanda Scherer
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
| | - Gavin R McGivney
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
- Cancer Biology Training Program, University of Iowa, Iowa City, IA, USA
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, USA
| | - Wade R Gutierrez
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA
- Cancer Biology Training Program, University of Iowa, Iowa City, IA, USA
- Medical Scientist Training Program, University of Iowa, Iowa City, IA, USA
| | - Jeffrey Rytlewski
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
| | - Alexa Sheehan
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
| | - Akshaya Warrier
- Cancer Biology Training Program, University of Iowa, Iowa City, IA, USA
- Medical Scientist Training Program, University of Iowa, Iowa City, IA, USA
| | - Emily A Laverty
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
| | - Grace Roughton
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
| | - Nina C Carnevale
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
| | - Vickie Knepper-Adrian
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA
| | - Rebecca D Dodd
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, 375 Newton Rd, 5206 MERF, Iowa City, IA, 52246, USA.
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA.
- Cancer Biology Training Program, University of Iowa, Iowa City, IA, USA.
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2
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Kohlmeyer JL, Lingo JJ, Kaemmer CA, Scherer A, Warrier A, Voigt E, Garay JAR, McGivney GR, Brockman QR, Tang A, Calizo A, Pollard K, Zhang X, Hirbe AC, Pratilas CA, Leidinger M, Breheny P, Chimenti MS, Sieren JC, Monga V, Tanas MR, Meyerholz DK, Darbro BW, Dodd RD, Quelle DE. CDK4/6-MEK Inhibition in MPNSTs Causes Plasma Cell Infiltration, Sensitization to PD-L1 Blockade, and Tumor Regression. Clin Cancer Res 2023; 29:3484-3497. [PMID: 37410426 PMCID: PMC10528807 DOI: 10.1158/1078-0432.ccr-23-0749] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/22/2023] [Accepted: 07/03/2023] [Indexed: 07/07/2023]
Abstract
PURPOSE Malignant peripheral nerve sheath tumors (MPNST) are lethal, Ras-driven sarcomas that lack effective therapies. We investigated effects of targeting cyclin-dependent kinases 4 and 6 (CDK4/6), MEK, and/or programmed death-ligand 1 (PD-L1) in preclinical MPNST models. EXPERIMENTAL DESIGN Patient-matched MPNSTs and precursor lesions were examined by FISH, RNA sequencing, IHC, and Connectivity-Map analyses. Antitumor activity of CDK4/6 and MEK inhibitors was measured in MPNST cell lines, patient-derived xenografts (PDX), and de novo mouse MPNSTs, with the latter used to determine anti-PD-L1 response. RESULTS Patient tumor analyses identified CDK4/6 and MEK as actionable targets for MPNST therapy. Low-dose combinations of CDK4/6 and MEK inhibitors synergistically reactivated the retinoblastoma (RB1) tumor suppressor, induced cell death, and decreased clonogenic survival of MPNST cells. In immune-deficient mice, dual CDK4/6-MEK inhibition slowed tumor growth in 4 of 5 MPNST PDXs. In immunocompetent mice, combination therapy of de novo MPNSTs caused tumor regression, delayed resistant tumor outgrowth, and improved survival relative to monotherapies. Drug-sensitive tumors that regressed contained plasma cells and increased cytotoxic T cells, whereas drug-resistant tumors adopted an immunosuppressive microenvironment with elevated MHC II-low macrophages and increased tumor cell PD-L1 expression. Excitingly, CDK4/6-MEK inhibition sensitized MPNSTs to anti-PD-L1 immune checkpoint blockade (ICB) with some mice showing complete tumor regression. CONCLUSIONS CDK4/6-MEK inhibition induces a novel plasma cell-associated immune response and extended antitumor activity in MPNSTs, which dramatically enhances anti-PD-L1 therapy. These preclinical findings provide strong rationale for clinical translation of CDK4/6-MEK-ICB targeted therapies in MPNST as they may yield sustained antitumor responses and improved patient outcomes.
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Affiliation(s)
- Jordan L Kohlmeyer
- Molecular Medicine Graduate Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Joshua J Lingo
- Cancer Biology Graduate Program, University of Iowa, Iowa City, Iowa
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa
| | - Courtney A Kaemmer
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Amanda Scherer
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Akshaya Warrier
- Cancer Biology Graduate Program, University of Iowa, Iowa City, Iowa
- Medical Scientist Training Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Ellen Voigt
- Cancer Biology Graduate Program, University of Iowa, Iowa City, Iowa
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa
- Medical Scientist Training Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | | | - Gavin R McGivney
- Cancer Biology Graduate Program, University of Iowa, Iowa City, Iowa
| | - Qierra R Brockman
- Molecular Medicine Graduate Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Amy Tang
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Center, Eastern Virginia Medical School, Norfolk, Virginia
| | - Ana Calizo
- Department of Oncology, Johns Hopkins University, Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Kai Pollard
- Department of Oncology, Johns Hopkins University, Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Xiaochun Zhang
- Division of Medical Oncology, Washington University, St. Louis, Missouri
| | - Angela C Hirbe
- Division of Medical Oncology, Washington University, St. Louis, Missouri
| | - Christine A Pratilas
- Department of Oncology, Johns Hopkins University, Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Mariah Leidinger
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Patrick Breheny
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa
- Department of Biostatistics, College of Public Health, University of Iowa, Iowa City, Iowa
| | - Michael S Chimenti
- Iowa Institute of Human Genetics, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Jessica C. Sieren
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa
- Department of Radiation, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Varun Monga
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Munir R Tanas
- Molecular Medicine Graduate Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
- Cancer Biology Graduate Program, University of Iowa, Iowa City, Iowa
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - David K Meyerholz
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Benjamin W Darbro
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa
- Medical Scientist Training Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
- Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Rebecca D Dodd
- Molecular Medicine Graduate Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
- Cancer Biology Graduate Program, University of Iowa, Iowa City, Iowa
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa
- Medical Scientist Training Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Dawn E Quelle
- Molecular Medicine Graduate Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, Iowa
- Cancer Biology Graduate Program, University of Iowa, Iowa City, Iowa
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa
- Medical Scientist Training Program, Carver College of Medicine, University of Iowa, Iowa City, Iowa
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, Iowa
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3
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Bi J, Witt E, Voltarelli VA, Feig VR, Venkatachalam V, Boyce H, McGovern M, Gutierrez WR, Rytlewski JD, Bowman KR, Rhodes AC, Cook AN, Muller BN, Smith MG, Ramos AR, Panchal H, Dodd RD, Henry MD, Mailloux A, Traverso G, Otterbein LE, Byrne JD. Low-Cost, High-Pressure-Synthesized Oxygen-Entrapping Materials to Improve Treatment of Solid Tumors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205995. [PMID: 36727291 PMCID: PMC10074083 DOI: 10.1002/advs.202205995] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/30/2022] [Indexed: 05/10/2023]
Abstract
Tumor hypoxia drives resistance to many cancer therapies, including radiotherapy and chemotherapy. Methods that increase tumor oxygen pressures, such as hyperbaric oxygen therapy and microbubble infusion, are utilized to improve the responses to current standard-of-care therapies. However, key obstacles remain, in particular delivery of oxygen at the appropriate dose and with optimal pharmacokinetics. Toward overcoming these hurdles, gas-entrapping materials (GeMs) that are capable of tunable oxygen release are formulated. It is shown that injection or implantation of these materials into tumors can mitigate tumor hypoxia by delivering oxygen locally and that these GeMs enhance responsiveness to radiation and chemotherapy in multiple tumor types. This paper also demonstrates, by comparing an oxygen (O2 )-GeM to a sham GeM, that the former generates an antitumorigenic and immunogenic tumor microenvironment in malignant peripheral nerve sheath tumors. Collectively the results indicate that the use of O2 -GeMs is promising as an adjunctive strategy for the treatment of solid tumors.
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4
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Gutierrez WR, Scherer A, Rytlewski JD, Laverty EA, Sheehan AP, McGivney GR, Brockman QR, Knepper-Adrian V, Roughton GA, Quelle DE, Gordon DJ, Monga V, Dodd RD. Augmenting chemotherapy with low-dose decitabine through an immune-independent mechanism. JCI Insight 2022; 7:159419. [PMID: 36227698 PMCID: PMC9746804 DOI: 10.1172/jci.insight.159419] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 10/11/2022] [Indexed: 12/15/2022] Open
Abstract
The DNA methyltransferase inhibitor decitabine has classically been used to reactivate silenced genes and as a pretreatment for anticancer therapies. In a variation of this idea, this study explores the concept of adding low-dose decitabine (DAC) following administration of chemotherapy to bolster therapeutic efficacy. We find that addition of DAC following treatment with the chemotherapy agent gemcitabine improves survival and slows tumor growth in a mouse model of high-grade sarcoma. Unlike prior studies in epithelial tumor models, DAC did not induce a robust antitumor T cell response in sarcoma. Furthermore, DAC synergizes with gemcitabine independently of the immune system. Mechanistic analyses demonstrate that the combination therapy induces biphasic cell cycle arrest and apoptosis. Therapeutic efficacy was sequence dependent, with gemcitabine priming cells for treatment with DAC through inhibition of ribonucleotide reductase. This study identifies an apparently unique application of DAC to augment the cytotoxic effects of conventional chemotherapy in an immune-independent manner. The concepts explored in this study represent a promising paradigm for cancer treatment by augmenting chemotherapy through addition of DAC to increase tolerability and improve patient response. These findings have widespread implications for the treatment of sarcomas and other aggressive malignancies.
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Affiliation(s)
- Wade R Gutierrez
- Cancer Biology Graduate Program.,Medical Scientist Training Program.,Holden Comprehensive Cancer Center.,Department of Internal Medicine
| | - Amanda Scherer
- Holden Comprehensive Cancer Center.,Department of Internal Medicine
| | | | | | - Alexa P Sheehan
- Holden Comprehensive Cancer Center.,Department of Internal Medicine.,Molecular Medicine Graduate Program
| | - Gavin R McGivney
- Cancer Biology Graduate Program.,Holden Comprehensive Cancer Center.,Department of Internal Medicine.,Department of Molecular Physiology and Biophysics
| | - Qierra R Brockman
- Holden Comprehensive Cancer Center.,Department of Internal Medicine.,Molecular Medicine Graduate Program
| | | | | | - Dawn E Quelle
- Cancer Biology Graduate Program.,Medical Scientist Training Program.,Holden Comprehensive Cancer Center.,Molecular Medicine Graduate Program.,Department of Neuroscience and Pharmacology.,Department of Pathology, and
| | - David J Gordon
- Holden Comprehensive Cancer Center.,Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Varun Monga
- Holden Comprehensive Cancer Center.,Department of Internal Medicine
| | - Rebecca D Dodd
- Cancer Biology Graduate Program.,Medical Scientist Training Program.,Holden Comprehensive Cancer Center.,Department of Internal Medicine.,Molecular Medicine Graduate Program
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5
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Meyerholz DK, Leidinger MR, Goeken JA, Businga TR, Akers A, Vizuett S, Kaemmer CA, Kohlmeyer JL, Dodd RD, Quelle DE. Utility of CD138/syndecan-1 immunohistochemistry for localization of plasmacytes is tissue-dependent in B6 mice. BMC Res Notes 2022; 15:219. [PMID: 35752869 PMCID: PMC9233769 DOI: 10.1186/s13104-022-06100-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 06/07/2022] [Indexed: 11/30/2022] Open
Abstract
Objective Inflammation is present in many diseases and identification of immune cell infiltration is a common assessment. CD138 (syndecan-1) is a recommended immunohistochemical marker for human plasmacytes although it is also expressed in various epithelia and tumors. Similarly, CD138 is a marker for murine plasmacytes, but its tissue immunostaining is not well-defined. Endogenous CD138 expression is an important confounding factor when evaluating plasmacyte infiltration. We studied two plasmacyte markers (CD138 and Kappa light chains) for endogenous immunostaining in five organs and one tumor from B6 mice. Results Plasmacytes in Peyer’s patches were positive for CD138 and Kappa markers without endogenous immunostaining. Endogenous CD138 immunostaining was widespread in liver, kidney, lung and a malignant peripheral nerve sheath tumor (MPNST) versus regionalized immunostaining in skin and small intestine wall. Endogenous Kappa immunostaining was absent in all tissues except for plasmacytes. Tissues with widespread endogenous CD138 immunostaining were contrasted by absence of endogenous Kappa immunostaining. Here, plasmacytes would not be distinguished by CD138, but would be obvious by Kappa immunostaining. Our study suggests that utility of immunostaining for plasmacytes by CD138 is tissue dependent in mice. Additionally, Kappa immunostaining may be a useful alternative in mouse tissues with confounding endogenous CD138 immunostaining.
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Affiliation(s)
| | | | - J Adam Goeken
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | | | - Allison Akers
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | | | - Courtney A Kaemmer
- Department of Neuroscience and Pharmacology, University of Iowa, Iowa City, IA, USA
| | | | - Rebecca D Dodd
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Dawn E Quelle
- Department of Pathology, University of Iowa, Iowa City, IA, USA.,Department of Neuroscience and Pharmacology, University of Iowa, Iowa City, IA, USA
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6
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Kohlmeyer JL, Kaemmer CA, Lingo JJ, Voigt E, Leidinger MR, McGivney GR, Scherer A, Koppenhafer SL, Gordon DJ, Breheny P, Meyerholz DK, Tanas MR, Dodd RD, Quelle DE. Oncogenic RABL6A promotes NF1-associated MPNST progression in vivo. Neurooncol Adv 2022; 4:vdac047. [PMID: 35571990 PMCID: PMC9092646 DOI: 10.1093/noajnl/vdac047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background Malignant peripheral nerve sheath tumors (MPNSTs) are aggressive sarcomas with complex molecular and genetic alterations. Powerful tumor suppressors CDKN2A and TP53 are commonly disrupted along with NF1, a gene that encodes a negative regulator of Ras. Many additional factors have been implicated in MPNST pathogenesis. A greater understanding of critical drivers of MPNSTs is needed to guide more informed targeted therapies for patients. RABL6A is a newly identified driver of MPNST cell survival and proliferation whose in vivo role in the disease is unknown. Methods Using CRISPR-Cas9 targeting of Nf1 + Cdkn2a or Nf1 + Tp53 in the mouse sciatic nerve to form de novo MPNSTs, we investigated the biological significance of RABL6A in MPNST development. Terminal tumors were evaluated by western blot, qRT-PCR, and immunohistochemistry. Results Mice lacking Rabl6 displayed slower tumor progression and extended survival relative to wildtype animals in both genetic contexts. YAP oncogenic activity was selectively downregulated in Rabl6-null, Nf1 + Cdkn2a lesions whereas loss of RABL6A caused upregulation of the CDK inhibitor, p27, in all tumors. Paradoxically, both models displayed elevated Myc protein and Ki67 staining in terminal tumors lacking RABL6A. In Nf1 + p53 tumors, cellular atypia and polyploidy were evident and increased by RABL6A loss. Conclusions These findings demonstrate that RABL6A is required for optimal progression of NF1 mutant MPNSTs in vivo in both Cdkn2a and p53 inactivated settings. However, sustained RABL6A loss may provide selective pressure for unwanted alterations, including increased Myc, cellular atypia, and polyploidy, that ultimately promote a hyper-proliferative tumor phenotype akin to drug-resistant lesions.
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Affiliation(s)
- Jordan L Kohlmeyer
- Molecular Medicine Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- The Department of Neuroscience and Pharmacology, The University of Iowa, Iowa City, Iowa, USA
| | - Courtney A Kaemmer
- The Department of Neuroscience and Pharmacology, The University of Iowa, Iowa City, Iowa, USA
| | - Joshua J Lingo
- Cancer Biology Graduate Program, The University of Iowa, Iowa City, Iowa, USA
| | - Ellen Voigt
- Cancer Biology Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- Medical Scientist Training Program, The University of Iowa, Iowa City, Iowa, USA
| | - Mariah R Leidinger
- The Department of Pathology, The University of Iowa, Iowa City, Iowa, USA
| | - Gavin R McGivney
- Cancer Biology Graduate Program, The University of Iowa, Iowa City, Iowa, USA
| | - Amanda Scherer
- The Department of Internal Medicine, The University of Iowa, Iowa City, Iowa, USA
| | | | - David J Gordon
- Molecular Medicine Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- Cancer Biology Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- Medical Scientist Training Program, The University of Iowa, Iowa City, Iowa, USA
- The Department of Pediatrics, The University of Iowa, Iowa City, Iowa, USA
- The Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, Iowa, USA
| | - Patrick Breheny
- Department of Biostatistics, The University of Iowa, Iowa City, Iowa, USA
- The Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, Iowa, USA
| | - David K Meyerholz
- The Department of Pathology, The University of Iowa, Iowa City, Iowa, USA
| | - Munir R Tanas
- Molecular Medicine Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- Cancer Biology Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- The Department of Pathology, The University of Iowa, Iowa City, Iowa, USA
- The Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, Iowa, USA
| | - Rebecca D Dodd
- Molecular Medicine Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- Cancer Biology Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- Medical Scientist Training Program, The University of Iowa, Iowa City, Iowa, USA
- The Department of Internal Medicine, The University of Iowa, Iowa City, Iowa, USA
- The Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, Iowa, USA
| | - Dawn E Quelle
- Molecular Medicine Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- Cancer Biology Graduate Program, The University of Iowa, Iowa City, Iowa, USA
- Medical Scientist Training Program, The University of Iowa, Iowa City, Iowa, USA
- The Department of Neuroscience and Pharmacology, The University of Iowa, Iowa City, Iowa, USA
- The Department of Pathology, The University of Iowa, Iowa City, Iowa, USA
- The Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, Iowa, USA
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7
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Rabab’h O, Gharaibeh A, Al-Ramadan A, Ismail M, Shah J. Pharmacological Approaches in Neurofibromatosis Type 1-Associated Nervous System Tumors. Cancers (Basel) 2021; 13:cancers13153880. [PMID: 34359780 PMCID: PMC8345673 DOI: 10.3390/cancers13153880] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/28/2021] [Accepted: 07/28/2021] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Neurofibromatosis type 1 (NF1) is a common cancer predisposition genetic disease that is associated with significant morbidity and mortality. In this literature review, we discuss the major pathways in the nervous system that are affected by NF1, tumors that are associated with NF1, drugs that target these pathways, and genetic models of NF1. We also summarize the latest updates from clinical trials that are evaluating pharmacological agents to treat these tumors and discuss the efforts that are being made to cure the disease in the future Abstract Neurofibromatosis type 1 is an autosomal dominant genetic disease and a common tumor predisposition syndrome that affects 1 in 3000 to 4000 patients in the USA. Although studies have been conducted to better understand and manage this disease, the underlying pathogenesis of neurofibromatosis type 1 has not been completely elucidated, and this disease is still associated with significant morbidity and mortality. Treatment options are limited to surgery with chemotherapy for tumors in cases of malignant transformation. In this review, we summarize the advances in the development of targeted pharmacological interventions for neurofibromatosis type 1 and related conditions.
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Affiliation(s)
- Omar Rabab’h
- Insight Research Institute, Flint, MI 48507, USA; (O.R.); (A.G.); (A.A.-R.); (M.I.)
- Center for Cognition and Neuroethics, University of Michigan-Flint, Flint, MI 48502, USA
| | - Abeer Gharaibeh
- Insight Research Institute, Flint, MI 48507, USA; (O.R.); (A.G.); (A.A.-R.); (M.I.)
- Center for Cognition and Neuroethics, University of Michigan-Flint, Flint, MI 48502, USA
- Insight Institute of Neurosurgery & Neuroscience, Flint, MI 48507, USA
- Insight Surgical Hospital, Warren, MI 48091, USA
| | - Ali Al-Ramadan
- Insight Research Institute, Flint, MI 48507, USA; (O.R.); (A.G.); (A.A.-R.); (M.I.)
- Center for Cognition and Neuroethics, University of Michigan-Flint, Flint, MI 48502, USA
| | - Manar Ismail
- Insight Research Institute, Flint, MI 48507, USA; (O.R.); (A.G.); (A.A.-R.); (M.I.)
| | - Jawad Shah
- Insight Research Institute, Flint, MI 48507, USA; (O.R.); (A.G.); (A.A.-R.); (M.I.)
- Center for Cognition and Neuroethics, University of Michigan-Flint, Flint, MI 48502, USA
- Insight Institute of Neurosurgery & Neuroscience, Flint, MI 48507, USA
- Insight Surgical Hospital, Warren, MI 48091, USA
- Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA
- Correspondence:
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8
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Gutierrez WR, Scherer A, McGivney GR, Brockman QR, Knepper-Adrian V, Laverty EA, Roughton GA, Dodd RD. Divergent immune landscapes of primary and syngeneic Kras-driven mouse tumor models. Sci Rep 2021; 11:1098. [PMID: 33441747 PMCID: PMC7806664 DOI: 10.1038/s41598-020-80216-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 12/17/2020] [Indexed: 12/19/2022] Open
Abstract
Immune cells play critical functions in cancer, and mice with intact immune systems are vital to understanding tumor immunology. Both genetically engineered mouse models (GEMMs) and syngeneic cell transplant approaches use immunocompetent mice to define immune-dependent events in tumor development and progression. Due to their rapid and reproducible nature, there is expanded interest in developing new syngeneic tools from established primary tumor models. However, few studies have examined the extent that syngeneic tumors reflect the immune profile of their originating primary models. Here, we describe comprehensive immunophenotyping of two well-established GEMMs and four new syngeneic models derived from these parental primary tumors. To our knowledge, this is the first systematic analysis comparing immune landscapes between primary and orthotopic syngeneic tumors. These models all use the same well-defined human-relevant driver mutations, arise at identical orthotopic locations, and are generated in mice of the same background strain. This allows for a direct and focused comparison of tumor immune landscapes in carefully controlled mouse models. We identify key differences between the immune infiltrate of GEMM models and their corresponding syngeneic tumors. Most notable is the divergence of T cell populations, with different proportions of CD8+ T cells and regulatory T cells across several models. We also observe immune variation across syngeneic tumors derived from the same primary model. These findings highlight the importance of immune variance across mouse modeling approaches, which has strong implications for the design of rigorous and reproducible translational studies.
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Grants
- P30 CA086862 NCI NIH HHS
- T32 GM007337 NIGMS NIH HHS
- T32 GM067795 NIGMS NIH HHS
- Pharmacology Training Grant, University of Iowa, United States
- Medical Scientist Training Program, University of Iowa, United States
- Holden Comprehensive Cancer Center, University of Iowa, United States
- Sarcoma Multidisciplinary Oncology Group, University of Iowa, United States
- NCI Core Grant, Holden Comprehensive Cancer Center, University of Iowa, United States
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Affiliation(s)
- Wade R Gutierrez
- Cancer Biology Graduate Program, Carver College of Medicine, University of Iowa, 285 Newton Rd, 3269C CBRB, Iowa City, IA, 52246, USA
- Medical Scientist Training Program, University of Iowa, Iowa City, IA, USA
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA
| | - Amanda Scherer
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Gavin R McGivney
- Cancer Biology Graduate Program, Carver College of Medicine, University of Iowa, 285 Newton Rd, 3269C CBRB, Iowa City, IA, 52246, USA
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA
| | - Qierra R Brockman
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA
- Molecular Medicine Graduate Program, University of Iowa, Iowa City, IA, USA
| | | | - Emily A Laverty
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Grace A Roughton
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Rebecca D Dodd
- Cancer Biology Graduate Program, Carver College of Medicine, University of Iowa, 285 Newton Rd, 3269C CBRB, Iowa City, IA, 52246, USA.
- Medical Scientist Training Program, University of Iowa, Iowa City, IA, USA.
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA.
- Molecular Medicine Graduate Program, University of Iowa, Iowa City, IA, USA.
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA.
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9
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Kohlmeyer JL, Gordon DJ, Tanas MR, Dodd RD, Monga V, Darbro BW, Quelle DE. Combination therapies for MPNSTs targeting RABL6A-RB1 signaling. Oncotarget 2021; 12:10-14. [PMID: 33456709 PMCID: PMC7800773 DOI: 10.18632/oncotarget.27862] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 01/15/2023] Open
Abstract
Precision medicine relies on a detailed molecular understanding of disease pathogenesis. Here, we consider urgently needed therapeutic options for malignant peripheral nerve sheath tumors (MPNSTs) based on emerging insights into druggable pathway alterations found to drive this deadly cancer. Recent observations demonstrate an essential role for an oncogenic GTPase, RABL6A, in promoting MPNST progression through hyperactivation of cyclin-dependent kinases (CDKs) and inactivation of the retinoblastoma (RB1) tumor suppressor. Monotherapies with CDK4/6 inhibitors have shown limited efficacy and durability in pre-clinical studies of MPNSTs and in clinical studies of other tumors. Therefore, we discuss the rationale and clinical benefits of inhibiting multiple RABL6A effectors, particularly CDK4/6 and MEK kinases, in targeted combination therapies suitable for MPNSTs and other Ras-driven malignancies.
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Affiliation(s)
- Jordan L Kohlmeyer
- Molecular Medicine Graduate Program, University of Iowa, Iowa City, Iowa, USA.,Department of Neuroscience and Pharmacology, University of Iowa, Iowa City, Iowa, USA
| | - David J Gordon
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA.,Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa, USA
| | - Munir R Tanas
- Molecular Medicine Graduate Program, University of Iowa, Iowa City, Iowa, USA.,Department of Pathology, University of Iowa, Iowa City, Iowa, USA.,Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa, USA
| | - Rebecca D Dodd
- Molecular Medicine Graduate Program, University of Iowa, Iowa City, Iowa, USA.,Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA.,Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa, USA
| | - Varun Monga
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA.,Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa, USA
| | - Benjamin W Darbro
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA.,Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa, USA
| | - Dawn E Quelle
- Molecular Medicine Graduate Program, University of Iowa, Iowa City, Iowa, USA.,Department of Neuroscience and Pharmacology, University of Iowa, Iowa City, Iowa, USA.,Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA.,Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa, USA
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10
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Special Issue: "Genomics and Models of Nerve Sheath Tumors". Genes (Basel) 2020; 11:genes11091024. [PMID: 32882803 PMCID: PMC7563428 DOI: 10.3390/genes11091024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 08/28/2020] [Indexed: 12/26/2022] Open
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