1
|
Kazandjian D, Diamond B, Papadimitriou M, Hill E, Sklavenitis-Pistofidis R, Ziccheddu B, Blaney P, Chojnacka M, Durante M, Maclachlan K, Young R, Usmani S, Davies F, Getz G, Ghobrial I, Korde N, Morgan G, Maura F, Landgren O. Genomic Profiling to Contextualize the Results of Intervention for Smoldering Multiple Myeloma. Clin Cancer Res 2024:743213. [PMID: 38652812 DOI: 10.1158/1078-0432.ccr-24-0210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/15/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
PURPOSE Early intervention for High-Risk Smoldering Multiple Myeloma (HR-SMM) achieves deep and prolonged responses. It is unclear if beneficial outcomes are due to treatment of less complex, susceptible disease or inaccuracy in clinical definition of cases entered. EXPERIMENTAL DESIGN Here, we interrogated whole genome and whole exome sequencing for 54 patients across two HR-SMM interventional studies (NCT01572480, NCT02279394). RESULTS We reveal that the genomic landscape of treated HR-SMM is generally simple as compared to Newly Diagnosed (ND)MM counterparts with less inactivation of tumor suppressor genes, RAS pathway mutations, MYC disruption, and APOBEC contribution. The absence of these events parallels that of indolent precursor conditions, possibly explaining overall excellent outcomes. However, some patients harboring genomic complexity fail to sustain response and experience resistant, progressive disease. Overall, clinical risk scores do not effectively discriminate between genomically indolent and aggressive disease. CONCLUSIONS Genomic profiling can contextualize the advantage of early intervention in SMM and guide personalization of therapy.
Collapse
Affiliation(s)
| | | | - Marios Papadimitriou
- Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, United States
| | | | | | | | - Patrick Blaney
- NYU Perlmutter Cancer Center, New York, NY, United States
| | | | | | - Kylee Maclachlan
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Ryan Young
- National Cancer Institute, Bethesda, MD, United States
| | - Saad Usmani
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Faith Davies
- New York University Langone Medical Center, New York, NY, United States
| | - Gad Getz
- Broad Institute, Cambridge, MA, United States
| | | | - Neha Korde
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Gareth Morgan
- New York University Langone Medical Center, New York, NY, United States
| | - Francesco Maura
- Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, United States
| | - Ola Landgren
- Sylvester Comprehensive Cancer Center, Miami, FL, United States
| |
Collapse
|
2
|
Chojnacka M, Diamond B, Ziccheddu B, Rustad E, Maclachlan K, Papadimitriou M, Boyle EM, Blaney P, Usmani S, Morgan G, Landgren O, Maura F. Impact of Rare Structural Variant Events in Newly Diagnosed Multiple Myeloma. Clin Cancer Res 2024; 30:575-585. [PMID: 37939148 PMCID: PMC10841766 DOI: 10.1158/1078-0432.ccr-23-1045] [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: 04/06/2023] [Revised: 07/19/2023] [Accepted: 11/07/2023] [Indexed: 11/10/2023]
Abstract
PURPOSE Whole-genome sequencing (WGS) of patients with newly diagnosed multiple myeloma (NDMM) has shown recurrent structural variant (SV) involvement in distinct regions of the genome (i.e., hotspots) and causing recurrent copy-number alterations. Together with canonical immunoglobulin translocations, these SVs are recognized as "recurrent SVs." More than half of SVs were not involved in recurrent events. The significance of these "rare SVs" has not been previously examined. EXPERIMENTAL DESIGN In this study, we utilize 752 WGS and 591 RNA sequencing data from patients with NDMM to determine the role of rare SVs in myeloma pathogenesis. RESULTS Ninety-four percent of patients harbored at least one rare SV event. Rare SVs showed an SV class-specific enrichment within genes and superenhancers associated with outlier gene expression. Furthermore, known myeloma driver genes recurrently impacted by point mutations were dysregulated by rare SVs. CONCLUSIONS Overall, we demonstrate the association of rare SVs with aberrant gene expression supporting a potential driver role in myeloma pathogenesis.
Collapse
Affiliation(s)
- Monika Chojnacka
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Benjamin Diamond
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Bachisio Ziccheddu
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Even Rustad
- Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Kylee Maclachlan
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Marios Papadimitriou
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Eileen M. Boyle
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Patrick Blaney
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Saad Usmani
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gareth Morgan
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Ola Landgren
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Francesco Maura
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| |
Collapse
|
3
|
Maura F, Boyle EM, Coffey D, Maclachlan K, Gagler D, Diamond B, Ghamlouch H, Blaney P, Ziccheddu B, Cirrincione A, Chojnacka M, Wang Y, Siegel A, Hoffman JE, Kazandjian D, Hassoun H, Guzman E, Mailankody S, Shah UA, Tan C, Hultcrantz M, Scordo M, Shah GL, Landau H, Chung DJ, Giralt S, Zhang Y, Arbini A, Gao Q, Roshal M, Dogan A, Lesokhin AM, Davies FE, Usmani SZ, Korde N, Morgan GJ, Landgren O. Genomic and immune signatures predict clinical outcome in newly diagnosed multiple myeloma treated with immunotherapy regimens. Nat Cancer 2023; 4:1660-1674. [PMID: 37945755 DOI: 10.1038/s43018-023-00657-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 09/20/2023] [Indexed: 11/12/2023]
Abstract
Despite improving outcomes, 40% of patients with newly diagnosed multiple myeloma treated with regimens containing daratumumab, a CD38-targeted monoclonal antibody, progress prematurely. By integrating tumor whole-genome and microenvironment single-cell RNA sequencing from upfront phase 2 trials using carfilzomib, lenalidomide and dexamethasone with daratumumab ( NCT03290950 ), we show how distinct genomic drivers including high APOBEC mutational activity, IKZF3 and RPL5 deletions and 8q gain affect clinical outcomes. Furthermore, evaluation of paired bone marrow profiles, taken before and after eight cycles of carfilzomib, lenalidomide and dexamethasone with daratumumab, shows that numbers of natural killer cells before treatment, high T cell receptor diversity before treatment, the disappearance of sustained immune activation (that is, B cells and T cells) and monocyte expansion over time are all predictive of sustained minimal residual disease negativity. Overall, this study provides strong evidence of a complex interplay between tumor cells and the immune microenvironment that is predictive of clinical outcome and depth of treatment response in patients with newly diagnosed multiple myeloma treated with highly effective combinations containing anti-CD38 antibodies.
Collapse
Affiliation(s)
- Francesco Maura
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA.
| | - Eileen M Boyle
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - David Coffey
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Kylee Maclachlan
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Dylan Gagler
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Benjamin Diamond
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Hussein Ghamlouch
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Patrick Blaney
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Bachisio Ziccheddu
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Anthony Cirrincione
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Monika Chojnacka
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Yubao Wang
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Ariel Siegel
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - James E Hoffman
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Dickran Kazandjian
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Hani Hassoun
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Emily Guzman
- Genome Technology Center, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Sham Mailankody
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Urvi A Shah
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Carlyn Tan
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Malin Hultcrantz
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Michael Scordo
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Hematopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gunjan L Shah
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Heather Landau
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David J Chung
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sergio Giralt
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yanming Zhang
- Cytogenetics Laboratory, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Arnaldo Arbini
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Qi Gao
- Hematopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mikhail Roshal
- Hematopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ahmet Dogan
- Hematopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alexander M Lesokhin
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Faith E Davies
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Saad Z Usmani
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Neha Korde
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Gareth J Morgan
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA.
| | - Ola Landgren
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA.
| |
Collapse
|
4
|
Lee H, Ahn S, Maity R, Leblay N, Ziccheddu B, Truger M, Chojnacka M, Cirrincione A, Durante M, Tilmont R, Barakat E, Poorebrahim M, Sinha S, McIntyre J, M Y Chan A, Wilson H, Kyman S, Krishnan A, Landgren O, Walter W, Meggendorfer M, Haferlach C, Haferlach T, Einsele H, Kortüm MK, Knop S, Alberge JB, Rosenwald A, Keats JJ, Rasche L, Maura F, Neri P, Bahlis NJ. Mechanisms of antigen escape from BCMA- or GPRC5D-targeted immunotherapies in multiple myeloma. Nat Med 2023; 29:2295-2306. [PMID: 37653344 PMCID: PMC10504087 DOI: 10.1038/s41591-023-02491-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [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: 03/05/2023] [Accepted: 07/05/2023] [Indexed: 09/02/2023]
Abstract
B cell maturation antigen (BCMA) target loss is considered to be a rare event that mediates multiple myeloma (MM) resistance to anti-BCMA chimeric antigen receptor T cell (CAR T) or bispecific T cell engager (TCE) therapies. Emerging data report that downregulation of G-protein-coupled receptor family C group 5 member D (GPRC5D) protein often occurs at relapse after anti-GPRC5D CAR T therapy. To examine the tumor-intrinsic factors that promote MM antigen escape, we performed combined bulk and single-cell whole-genome sequencing and copy number variation analysis of 30 patients treated with anti-BCMA and/or anti-GPRC5D CAR T/TCE therapy. In two cases, MM relapse post-TCE/CAR T therapy was driven by BCMA-negative clones harboring focal biallelic deletions at the TNFRSF17 locus at relapse or by selective expansion of pre-existing subclones with biallelic TNFRSF17 loss. In another five cases of relapse, newly detected, nontruncating, missense mutations or in-frame deletions in the extracellular domain of BCMA negated the efficacies of anti-BCMA TCE therapies, despite detectable surface BCMA protein expression. In the present study, we also report four cases of MM relapse with biallelic mutations of GPRC5D after anti-GPRC5D TCE therapy, including two cases with convergent evolution where multiple subclones lost GPRC5D through somatic events. Immunoselection of BCMA- or GPRC5D-negative or mutant clones is an important tumor-intrinsic driver of relapse post-targeted therapies. Mutational events on BCMA confer distinct sensitivities toward different anti-BCMA therapies, underscoring the importance of considering the tumor antigen landscape for optimal design and selection of targeted immunotherapies in MM.
Collapse
Grants
- P30 CA033572 NCI NIH HHS
- P30 CA240139 NCI NIH HHS
- Terry Fox Foundation
- Terry Fox Foundation, and Leukemia Lymphoma Society of Canada
- International Myeloma Society, Myeloma Canada, and Leukemia Lymphoma Society of Canada
- Terry Fox Foundation, International Myeloma Society, Myeloma Canada, and Leukemia Lymphoma Society of Canada
- Judy and Bernard Briskin Center for Multiple Myeloma Research at City of Hope, the MMRF, and the City of Hope Comprehensive Cancer Center NCI Core Grant (P30 CA 033572).
- Paula and Rodger Riney Multiple Myeloma Research Program Fund, the Multiple Myeloma Research Foundation (MMRF), the Perelman Family Foundation, and by a Sylvester Comprehensive Cancer Center NCI Core Grant (P30 CA 240139).
- German Cancer Aid and The Paula and Rodger Riney Foundation.
- Terry Fox Foundation, International Myeloma Society, Myeloma Canada, and Leukemia Lymphoma Society of Canada.
Collapse
Affiliation(s)
- Holly Lee
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Sungwoo Ahn
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Ranjan Maity
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Noemie Leblay
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | | | | | | | | | | | - Remi Tilmont
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Elie Barakat
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Mansour Poorebrahim
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Sarthak Sinha
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - John McIntyre
- Precision Oncology Hub Laboratory, Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Angela M Y Chan
- Precision Oncology Hub Laboratory, Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Holly Wilson
- Precision Oncology Hub Laboratory, Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Shari Kyman
- Translational Genomics Research Institute, Phoenix, AZ, USA
| | | | - Ola Landgren
- Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | | | | | | | | | - Hermann Einsele
- Department of Internal Medicine 2, University Hospital of Würzburg, Würzburg, Germany
| | - Martin K Kortüm
- Department of Internal Medicine 2, University Hospital of Würzburg, Würzburg, Germany
| | - Stefan Knop
- Department of Internal Medicine 2, University Hospital of Würzburg, Würzburg, Germany
- Department of Internal Medicine 5, Paracelsus Medical School, Nuremberg General Hospital, Nuremberg, Germany
| | | | | | - Jonathan J Keats
- Translational Genomics Research Institute, Phoenix, AZ, USA
- City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Leo Rasche
- Department of Internal Medicine 2, University Hospital of Würzburg, Würzburg, Germany.
- Mildred Scheel Early Career Center, University Hospital of Würzburg, Würzburg, Germany.
| | | | - Paola Neri
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Nizar J Bahlis
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada.
| |
Collapse
|
5
|
Chojnacka M, Diamond B, Ziccheddu B, Rustad E, Maclachlan K, Papadimitriou M, Boyle E, Blaney P, Usmani S, Morgan G, Landgren O, Maura F. Abstract 6067: Characterizing the landscape of rare structural variant events in newly diagnosed multiple myeloma. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-6067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Background: Structural variants (SV) are known to play a critical role in the pathogenesis of multiple cancer types. Using whole genome sequencing (WGS), we recently characterized the SV landscape of 752 newly diagnosed multiple myeloma (MM) patients, identifying 68 SV hotspots and 152 recurrent copy number aberrations (CNA; Rustad et al. Blood Cancer Discovery 2020). Despite comprehensive annotation, more than half of SVs were not linked to any known MM genomic driver. The biological impact of these SV events, here defined as rare SV, occurring in 93% (702/752) of patients, is unknown.
Methods: To study the biological impact of rare SVs, we interrogated WGS (n=752) and RNAseq (n=591) in the CoMMpass trial. Recurrent SVs identified by involvement in canonical Ig translocations, recurrent CNAs, or SV hotspots were excluded. All SVs within an event must not involve a recurrent region to be defined rare. To determine SV class-specific gene relationships, breakpoint enrichment was compared against a permuted background model for each SV class and gene expression direction, up to 1 Mb. Genes were considered affected if expression was above a gene specific outlier Z-score of +/- 2. Lastly, we modeled breakpoint density to the nearest MM superenhancer up to 10 MB, and compared to permuted background rates.
Results: Of the total 8,942 SVs, 4,959 (55%) were identified as rare. 201 (34%) patients had at least 1 enriched rare SV event associated with gene expression outliers. Amongst over-expressed gene outliers, rare templated insertions and duplications were enriched within the gene body and up to 1 MB away. Rare inversions were enriched in genes 100kb and 1MB away, and rare translocations were associated with outliers 1 MB away. Amongst under-expressed gene outliers, rare complex SVs were enriched within the gene body, while deletion SVs were enriched in the gene body and up to 1 MB away. Rare duplications, translocations and templated insertions were enriched up to 1 MB of superenhancers. Rare templated insertions were significantly enriched against the background model (p < 0.001, Fisher Exact). Overall, 82% (104/126) of gene outliers affected by rare templated insertions were associated with superenhancers, (95 over-expressed, e.g. IRF6 and 9 under-expressed), 54% (130/237) by rare translocations, (105 overexpressed, e.g. FAM46A and 25 under-expressed), and 55% (96/172) by rare duplication events, (93 overexpressed, e.g. MAPK13, and 7 under-expressed). In addition, among the 853 outlier genes affected by enriched rare SVs, at least 15 are involved with B-cell development, suggesting a potential driver role in myeloma pathogenesis.
Conclusion: In summary, leveraging WGS and RNA-seq of clinical samples, we demonstrate that rare SVs are frequently associated with aberrant gene expression, expanding our understanding of their potential role in heterogenous clinical response in patients diagnosed with MM.
Citation Format: Monika Chojnacka, Benjamin Diamond, Bachisio Ziccheddu, Even Rustad, Kylee Maclachlan, Marios Papadimitriou, Eileen Boyle, Patrick Blaney, Saad Usmani, Gareth Morgan, Ola Landgren, Francesco Maura. Characterizing the landscape of rare structural variant events in newly diagnosed multiple myeloma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 6067.
Collapse
Affiliation(s)
- Monika Chojnacka
- 1Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL
| | - Benjamin Diamond
- 1Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL
| | | | - Even Rustad
- 2Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Kylee Maclachlan
- 3Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Eileen Boyle
- 4Perlmutter Cancer Center, NYU Langone, New York, NY
| | | | - Saad Usmani
- 3Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Gareth Morgan
- 4Perlmutter Cancer Center, NYU Langone, New York, NY
| | - Ola Landgren
- 1Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL
| | - Francesco Maura
- 1Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL
| |
Collapse
|
6
|
Chojnacka M, Diamond B, Ziccheddu B, Rustad E, Maclachlan K, Papadimitriou M, Boyle EM, Blaney P, Usmani S, Morgan G, Landgren O, Maura F. Impact of rare structural variant events in newly diagnosed multiple myeloma. bioRxiv 2023:2023.01.03.522573. [PMID: 36711679 PMCID: PMC9881878 DOI: 10.1101/2023.01.03.522573] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Whole genome sequencing (WGS) of newly diagnosed multiple myeloma patients (NDMM) has shown recurrent structural variant (SV) involvement in distinct regions of the genome (i.e. hotspots) and causing recurrent copy number alterations. Together with canonical immunoglobulin translocations, these SVs are recognized as "recurrent SVs". More than half SVs were not involved in recurrent events. The significance of these "rare SVs" has not been previously examined. In this study, we utilize 752 WGS and 591 RNA-seq data from NDMM patients to determine the role of rare SVs in myeloma pathogenesis. 94% of patients harbored at least one rare SV event. Rare SVs showed an SV-class specific enrichment within genes and superenhancers associated with outlier gene expression. Furthermore, known myeloma driver genes recurrently impacted by point mutations were dysregulated by rare SVs. Overall, we demonstrate the association of rare SVs with aberrant gene expression supporting a driver role in myeloma pathogenesis. SIGNIFICANCE Characterization of multiple myeloma genome revealed that more than half structural variants are not involved in recurrent events. Here, we demonstrate that these rare SVs hold potential for myeloma pathogenesis through their gene expression impact. Rare SVs contribute to MM heterogeneity and have implications for development of individualized treatment.
Collapse
|
7
|
Totiger TM, Chaudhry S, Montoya S, Chojnacka M, Gaidosh G, Afaghani J, Affer M, Zabroski J, Jahn J, Nawaratne V, Notti R, Verdun R, Bilbao D, Rodriguez J, Taylor J. Abstract B018: Novel therapeutics for targeting the aberrant nuclear export machinery in colorectal cancer. Cancer Res 2022. [DOI: 10.1158/1538-7445.crc22-b018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Abstract
XPO1 is a nuclear export receptor responsible for exporting many key proteins critical for cell survival from the nucleus to the cytoplasm. Recently, we identified a highly statistically significant hotspot mutation in XPO1 R749Q occurring in patients with colorectal cancer. Out of 96 patients identified to have XPO1 R749Q mutations, 27 (28%) were in colorectal cancer (CRC). 95% of XPO1 R749Q mutant CRC were tumor mutation burden-high (TMB-H; >10 mut/Mb) and 0 were mis-match repair deficient (dMMR)/micro satellite instability-high (MSI-H). Co-mutation analysis showed that 95% of XPO1 R749Q CRC were POLE mutated, which was significantly enriched over XPO1 WT tumors. To investigate whether XPO1 R749Q might play a role in CRC biology, we have generated two different isogenic colorectal cancer cell lines bearing the XPO1 R749Q mutation (HCT116 and LS174T) using CRISPR-CAS9 to better understand the role of this aberrant XPO1 mutation on nuclear export and tumorigenesis. Immunofluorescence (IF) and Stochastic Optical Reconstruction Microscopy (STORM) super-resolution experiments showed that R749Q mutant cells had significantly increased localization of XPO1 in the cytoplasm of the XPO1 R749Q mutant cells when compared to wildtype (XPO1 WT) cells, particularly at the edge of the nuclear pores of the XPO1 R749Q mutant cells suggesting increased nuclear export. Mass spectrometry analysis of nuclear and cytoplasmic fractionated proteins confirmed that XPO1 R749Q mutant cells had increased export of proteins from the nucleus compared to XPO1 WT cells. Structural modeling using published structures of XPO1 bound to Ran-GTP predicted that XPO1 R749Q mutation increased affinity of the regulatory H9-loop of XPO1 to Ran, thus favoring increased shuttling and retention in the cytoplasmic compartment. Therefore, we hypothesize that XPO1 R749Q may represent a novel mechanism of nuclear export alteration involved with kinetic tuning of global transport. Despite the increased nuclear export function, XPO1 R749Q cells did not show a proliferative advantage. We thus set out to test whether XPO1 R749Q might be enriched in cancer as an adaptive response to chemotherapy treatment. Using a chemical compound library of >200 FDA-approved cancer therapies we observed a strong therapeutic resistance of XPO1 R749Q cells relative to XPO1 WT cells, specifically to chemotherapies used in the treatment of colon cancer, such as irinotecan. However, these cells remained sensitive to treatment with the XPO1 inhibitor selinexor. Mice xenografted with XPO1 R749Q mutant HCT116 cells showed moderate tumor response to selinexor or irinotecan monotherapies but prolonged tumor responses to combination therapy. Recent clinical data has shown POLE mutations to be a biomarker for response to PD-1 immune checkpoint blockade, especially in CRC. Since our genetic data identify POLE mutations commonly co-occurring with XPO1 R749Q in colon cancer, we are planning to test the combination of PD-1 inhibitors and selinexor to target both these mutations, as well as CRC tumors without these mutations.
Citation Format: Tulasigeri M. Totiger, Sana Chaudhry, Skye Montoya, Monika Chojnacka, Gabriel Gaidosh, Jumana Afaghani, Maurizio Affer, Jenna Zabroski, Jacob Jahn, Vindhya Nawaratne, Ryan Notti, Ramiro Verdun, Daniel Bilbao, Josean Rodriguez, Justin Taylor. Novel therapeutics for targeting the aberrant nuclear export machinery in colorectal cancer [abstract]. In: Proceedings of the AACR Special Conference on Colorectal Cancer; 2022 Oct 1-4; Portland, OR. Philadelphia (PA): AACR; Cancer Res 2022;82(23 Suppl_1):Abstract nr B018.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Ryan Notti
- 2Memorial Sloan Kettering Cancer Center, New York, NY,
| | | | | | | | | |
Collapse
|
8
|
Totiger TM, Chojnacka M, Afaghani J, Chaudhry S, Montoya S, Affer M, Taylor J. Abstract 853: The biological role and mechanisms of XPO1 R749Q mutation in colon cancer. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Exportin-1 (XPO1) is known to be overexpressed or mutated in several cancer types. XPO1 is the target of selinexor, which has received approval in hematologic cancers but not in solid tumors. We recently performed a large-scale genomic analysis of 42,793 patients with cancer spanning 322 cancer types (Taylor et. al. Cancer Discovery 2019). We identified a highly statistically significant hotspot mutation in XPO1 R749Q occurring mainly in colorectal cancer patients. We have generated 2 different isogenic colorectal cancer cell lines bearing the XPO1 R749Q mutation (HCT116 and LS174T) using CRISPR-CAS9. We observed that in vitro and in vivo, these cell lines did not reveal a role for XPO1 R749Q on cell growth and proliferation. A chemical compound library screen of >200 FDA-approved cancer therapies revealed a strong therapeutic resistance of XPO1 R749Q cells relative to wildtype (XPO1 WT) cells, specifically to chemotherapies used in the treatment of colon cancer. However, XPO1 R749Q remained sensitive to inhibition with the selective XPO1 inhibitor selinexor.
Mass spectrometry analysis of nuclear and cytoplasmic fractionated proteins revealed XPO1 R749Q mutant cells had increased export of proteins from the nucleus compared to XPO1 WT cells. Upon ionizing radiation or chemotherapy, XPO1 R749Q cells had less DNA damage as measured by comet assay and γ-H2Ax immunofluorescence. XPO1 R749Q cells are resistant to chemotherapy but respond to selinexor in vitro. Selinexor effectively blocked nuclear export of canonical cargoes of XPO1 in XPO1 R749Q and XPO1 WT cells. The combination of selinexor and irinotecan showed high levels of synergy in vitro. In vivo observations in mice xenografted with XPO1 R749Q mutant HCT116 cells showed moderate tumor response to selinexor or irinotecan monotherapies but prolonged tumor responses to combination therapy. Single-cell intracellular signaling protein analysis using the Isoplexis platform discovered increased mTOR signaling in the XPO1 R749Q vs. WT cells. Western blot validation confirmed increased mTOR signaling in XPO1 R749Q mutants.
In conclusion, our current study sheds novel insights into therapeutic targeting of cancers where XPO1 mutations occur, such as colorectal cancer. Specifically, these mutations confer resistance to DNA-damaging therapies such as chemotherapy and radiation; however, they may predict for sensitivity to targeted agents such as XPO1 inhibition. We have generated unique genetic models for study of XPO1 that are currently lacking. Our study established the biological and mechanistic consequences of XPO1 R749Q mutations in cancer, thereby having a significant positive impact on the treatments of patients with cancer. Further work is ongoing for the identification of cargo proteins transported by mutated XPO1 that connect the effects of XPO1 R749Q mutation on nuclear export to response to DNA damage, mTOR signaling and XPO1 inhibition in tumors in vitro and in vivo.
Citation Format: Tulasigeri M. Totiger, Monika Chojnacka, Jumana Afaghani, Sana Chaudhry, Skye Montoya, Maurizio Affer, Justin Taylor. The biological role and mechanisms of XPO1 R749Q mutation in colon cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 853.
Collapse
|
9
|
Perek-Polnik M, Cochrane A, Chojnacka M, Drogosiewicz M, Filipek I, Swieszkowska E, Tarasinska M, Kowalczyk P, Abdelbaki MS, Dembowska-Bagińska B. MEDB-26. Outcomes of children with standard-risk and high-risk medulloblastoma treated with pre-irradiation chemotherapy and risk-adapted craniospinal irradiation: a report on patients from the Polish Pediatric Neuro-oncology Group. Neuro Oncol 2022. [PMCID: PMC9165299 DOI: 10.1093/neuonc/noac079.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND: The last two decades have witnessed several efforts to minimize the adverse sequelae of craniospinal irradiation (CSI), a standard of care treatment modality in medulloblastoma. This has been accomplished by adding chemotherapy to the treatment backbone. The use of pre-irradiation chemotherapy has also been previously reported. In one of the largest studies to date, we analyze treatment outcomes in children with standard and high-risk medulloblastoma treated with pre-irradiation chemotherapy followed by reduced-dose radiotherapy in SR and maintenance chemotherapy. METHODS: Data from the Polish Pediatric Neuro-oncology Group (PPNG) was analyzed in patients greater than 3 years of age with newly-diagnosed medulloblastoma. RESULTS : Among 138 patients, median age at diagnosis was 7.9 years and median follow-up was 5.5 years. Comprehensive molecular subgrouping was not available for all patients at the time of data collection. Of 60 standard-risk patients, there was pre-irradiation disease recurrence in one patient. One patient expired prior to radiation due to metastatic disease. Of 78 high-risk patients, one had pre-irradiation recurrence. Overall survival (OS) for high-risk patients at 3 and 5 years (± standard error) was 89.2 ± 4.0% and 81.3 ± 5.8%, respectively. OS for standard-risk patients at 3 and 5 years was 92.5 ± 3.8% and 88.2 ± 5.1%, respectively. Among high-risk patients, event-free survival (EFS) at 3 and 5 years was 82.5 ± 5.3% and 81.0 ± 5.6%. Among standard-risk patients, 3-year EFS was 89.2 ± 4.6% and 5-year EFS was 86.8 ± 5.3%. CONCLUSION : This study demonstrates promising survival outcomes in pediatric medulloblastoma patients treated with pre-irradiation chemotherapy followed by reduced-dose CSI and adjuvant chemotherapy. Such an approach may be helpful if delays in starting radiotherapy are expected, which is usually the case in many institutions around the globe.
Collapse
Affiliation(s)
- Marta Perek-Polnik
- The Children’s Memorial Health Institute, Department of Oncology , Warsaw , Poland
| | - Anne Cochrane
- Washington University School of Medicine in St. Louis, St. Louis , Missouri , USA
| | - M Chojnacka
- Maria Sklodowska-Curie National Research Institute of Oncology, Pediatric Radiotherapy Centre , Warsaw , Poland
| | - M Drogosiewicz
- The Children’s Memorial Health Institute, Department of Oncology , Warsaw , Poland
| | - I Filipek
- The Children’s Memorial Health Institute, Department of Oncology , Warsaw , Poland
| | - E Swieszkowska
- The Children’s Memorial Health Institute, Department of Oncology , Warsaw , Poland
| | - M Tarasinska
- The Children’s Memorial Health Institute, Department of Oncology , Warsaw , Poland
| | - P Kowalczyk
- The Children’s Memorial Health Institute, Department of Neurosurgery , Warsaw , Poland
| | - Mohamed S Abdelbaki
- Washington University School of Medicine in St. Louis, St. Louis , Missouri , USA
| | | |
Collapse
|
10
|
Chojnacka M, Diamond B, Landgren O, Maura F. Defining genomic events involved in the evolutionary trajectories of myeloma and its precursor conditions. Semin Oncol 2022; 49:11-18. [PMID: 35168813 PMCID: PMC9149131 DOI: 10.1053/j.seminoncol.2022.01.006] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 01/08/2022] [Indexed: 02/03/2023]
Abstract
All patients with a diagnosis of multiple myeloma (MM) have a preceding, asymptomatic expansion of clonal plasma cells, clinically recognized as monoclonal gammopathy of undetermined significance or smoldering multiple myeloma (SMM). While most patients with monoclonal gammopathy of undetermined significance have a very small rate of progression, SMM is a widely heterogeneous condition where a fraction of patients will progress to symptomatic MM rather quickly, while others will experience an indolent clinical course. The differentiation between progressive and stable precursor condition thus represents one of the most important unmet clinical needs in the MM community. The ability to identify patients at high-risk of progression before major clonal expansion and onset of end-organ damage would enable strategies for early prevention and perhaps more effective intervention. All proposed criteria to predict the progression of myeloma precursor conditions are built around indirect markers of disease burden and, therefore, are generally able to accurately identify only a small fraction of patients in whom progression to MM is already occurring. Leveraging whole genome and exome sequencing, it has been shown that patients with stable myeloma precursor conditions are characterized by either absence or lower prevalence of distinct genomic events that are detectable in progressive precursor condition years before the progression. In this review, we discuss evolving genomic concepts and tools; and their ability to differentiate myeloma precursor conditions into two distinct entities: one benign (monoclonal gammopathy of benign significance) and another malignant (asymptomatic multiple myeloma).
Collapse
Affiliation(s)
- Monika Chojnacka
- Myeloma Service, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Benjamin Diamond
- Myeloma Service, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Ola Landgren
- Myeloma Service, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Francesco Maura
- Myeloma Service, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| |
Collapse
|
11
|
Huijskens S, Kroon P, Demiroz Abakay C, Timmermann B, Giralt J, Gaze M, Harrabi S, Scarzello G, Alexopoulou A, Padovani L, Escande A, Gandola L, Supiot S, Chojnacka M, Bokun J, Napieralska A, Rombi B, Maduro J, Bolle S, Mussano A, Mandeville H, Claude L, Seravalli E, Janssens G. OC-0454: Current radiotherapy practice for children with metastases from solid tumors: SIOPE survey analysis. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00476-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
12
|
Temnyk M, Pędziwiatr K, Pawłowski P, Gidzińska-Wielgosz M, Chojnacka M, Wyrwicz L. 429P Feasibility and toxicity of hypofractionated radiotherapy (5x5 Gy) with a simultaneous integrated boost (5x6 Gy) in locally advanced rectal cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
13
|
Płatek T, Orso E, Zapała B, Polus A, Kieć-Wilk B, Piwowar M, Chojnacka M, Ciałowicz U, Malczewska-Malec M, Schmitz G, Solnica B, Dembińska-Kieć A. Case report of dysregulation of primary bile acid synthesis in a family with X-linked adrenoleukodystrophy. Medicine (Baltimore) 2018; 97:e13353. [PMID: 30544401 PMCID: PMC6310492 DOI: 10.1097/md.0000000000013353] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
RATIONALE X-linked adrenoleukodystrophy (X-ALD) is a rare disorder caused by mutations in the ABCD1 gene, coding for peroxisomal membrane transporter adrenoleukodystrophy (ALD) protein. The disease is characterized by accumulation of very long chain fatty acids (VLCFAs) in tissues. Adult adrenomyeloneuropathy (AMN) and the cerebral inflammatory form of ALD are the main phenotypes presenting various symptoms. PATIENT CONCERNS We report a case of 37-year-old patient with diagnosis of X-ALD, confirmed based on elevated VLCFA concentrations and genetic testing of ABCD1 gene. The complete clinical picture in the patient indicates AMN phenotype with cerebral involvement. DIAGNOSES The reduced synthesis of unconjugated cholic and chenodeoxycholic acids, and the reduction to 28% to 29% of peroxisomal beta-oxidation of behenic acid and normal peroxisomal metabolism of pristanic and palmitic acid were observed in the X-ALD patient. Sanger sequencing of major genes involved in primary bile acid (BA) synthesis failed to identify pathogenic mutations of the investigated set of genes. INTERVENTIONS Plasma concentrations of BAs, VLCFAs, and beta-oxidation of C22:0, C16:0, and pristanic acid were studied in primary skin fibroblasts of the patient. In addition, we performed sequencing of the ABCD1, ABCD3, CYP7A1, CYP7B1, CYP27A1, HSD3B7, AKR1D1, and SLC27A5 genes in the X-ALD family. OUTCOMES In the Polish family affected with AMN a dysregulation of the primary BA synthesis pathway was found. LESSONS We have demonstrated the coincidence of the adult form of X-ALD with abnormalities in BA synthesis. We suggest that decreased synthesis of BAs may be an additional dysfunction as a consequence of the ABCD1 c.659T>C, p.(Leu220Pro) mutation and may be further evidence that disturbed cholesterol metabolism is important in the pathology of ALD.
Collapse
Affiliation(s)
- Teresa Płatek
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Krakow, Poland
| | - Evelyn Orso
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, Regensburg, Germany
| | - Barbara Zapała
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Krakow, Poland
| | - Anna Polus
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Krakow, Poland
| | - Beata Kieć-Wilk
- Department of Metabolic Diseases, University Hospital Krakow
| | - Monika Piwowar
- Department of Bioinformatics and Telemedicine, Jagiellonian University Medical College, Krakow, Poland
| | - Monika Chojnacka
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Krakow, Poland
| | - Urszula Ciałowicz
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Krakow, Poland
| | | | - Gerd Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, Regensburg, Germany
| | - Bogdan Solnica
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Krakow, Poland
| | - Aldona Dembińska-Kieć
- Department of Clinical Biochemistry, Jagiellonian University Medical College, Krakow, Poland
| |
Collapse
|
14
|
Góralska J, Śliwa A, Gruca A, Raźny U, Chojnacka M, Polus A, Solnica B, Malczewska-Malec M. Glucagon-like peptide-1 receptor agonist stimulates mitochondrial bioenergetics in human adipocytes. Acta Biochim Pol 2017; 64:423-429. [PMID: 28822994 DOI: 10.18388/abp.2017_1634] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 03/19/2017] [Revised: 06/25/2017] [Accepted: 06/29/2017] [Indexed: 11/10/2022]
Abstract
Glucagon-like peptide 1 receptor agonists (GLP-1RAs) are relatively new pharmacological agents used to normalize glucose level in type 2 diabetes. Recently, GLP-1RAs have been approved for the treatment of obesity to reduce body weight in non-diabetic patients. The extra-pancre-atic effects of GLP-1RAs, as well as their molecular mechanism of action, are still poorly understood. Thus this study was aimed to verify the hypothesis that the mechanism of action of the GLP-1RAs involves mitochondria and that GLP-1RAs administration can improve mitochondrial functions. For this purpose, preadipocytes CHUBS7 were differentiated to mature adipocytes and then stimulated with GLP-1RA, exendin-4 at 100 nM for 24 h. Oxygen consumption rates, mitochondrial membrane potential, intracellular ATP (adenosine triphosphate) level, SIRT1 and SIRT3 gene expression and the histone deacetylases' activity were measured. Exendin-4 was found to uncouple mitochondrial electron transport from ATP synthesis, slightly decreasing mitochondrial membrane potential in mature adipocytes. Routine respiration and uncoupled oxy- gen consumption rates were higher in exendin-4 treated adipocytes than in the non-treated cells. The ATP level remained unchanged. Exendin-4 enhanced SIRT1 and SIRT3 genes expression. Histone deacetylases' activity in the nuclear fraction was not affected by exendin-4, although the activity of class III histone deacetylases was increased. All of the effects on mitochondrial bioenergetics induced by exendin-4 were abolished by addition of glucagon-like peptide 1 receptor antagonist. In conclusion, exendin-4 activates the sirtuin pathway and increases energy expenditure in human adipocytes. Our results suggest another mechanism that may be responsible for body weight reduction observed in patients using GLP-1RAs.
Collapse
Affiliation(s)
- Joanna Góralska
- Department of Clinical Biochemistry, Medical College, Jagiellonian University, Kraków, Poland
| | - Agnieszka Śliwa
- Department of Clinical Biochemistry, Medical College, Jagiellonian University, Kraków, Poland
| | - Anna Gruca
- Department of Clinical Biochemistry, Medical College, Jagiellonian University, Kraków, Poland
| | - Urszula Raźny
- Department of Clinical Biochemistry, Medical College, Jagiellonian University, Kraków, Poland
| | - Monika Chojnacka
- Department of Clinical Biochemistry, Medical College, Jagiellonian University, Kraków, Poland
| | - Anna Polus
- Department of Clinical Biochemistry, Medical College, Jagiellonian University, Kraków, Poland
| | - Bogdan Solnica
- Department of Clinical Biochemistry, Medical College, Jagiellonian University, Kraków, Poland
| | | |
Collapse
|
15
|
Polus A, Bociaga-Jasik M, Czech U, Goralska J, Cialowicz U, Chojnacka M, Polus M, Jurowski K, Dembinska-Kiec A. The human immunodeficiency virus (HIV1) protease inhibitor sanquinavir activates autophagy and removes lipids deposited in lipid droplets. J Physiol Pharmacol 2017; 68:283-293. [PMID: 28614778] [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] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
Reduction in mortality and increased average life span of the human immunodeficiency virus (HIV)-infected patients treated with antiretroviral therapy (ART) are associated with the risk of unwanted effects, such as insulin resistance and dyslipidemia with cardiovascular complications. Antiretroviral therapy may also be associated with lipodystrophy characterized as peripheral lipoatrophy with central fat accumulation. Understanding the molecular mechanisms of lipodystrophy caused by ART is important for therapeutic strategy and the prediction of side-effects. Influence of protease inhibitor saquinavir (SQV) on preadipocyte differentiation was analyzed in in vitro human Chub-S7 cell line model. For measurement of the effects of SQV the drug was added to differentiated or non-differentiated cells. The influence of SQV on changes in the profile of gene expression was verified by microarray and changes in lipid species content were analyzed using GC-MS/MS. Results were confirmed by real-time PCR and analysis of autophagy. Addition of SQV to differentiated Chub-S7 cells lead to removal of lipids deposited in lipid droplets, down-regulation of expression of transcription factors and markers of adipocyte differentiation. Antiviral activity of SQV based on its non-selective inhibition of proteases resulted in proteasome inhibition, induction of endoplasmic reticulum stress and induction of macroautophagy. This activity was accompanied by an increase in PI, PEPL, PC lipid species especially with MUFA and PUFA. Additionally up-regulation of miR-100-3p, miR-222-5p, miR-483-5p were found, which correlated with obesity, insulin resistance, increasing insulin secretion and activation of lipolysis. Our results indicated that SQV, by inhibition of proteasome protein degradation, activated the unfolded protein response resulting in autophagic breakdown of lipids deposited in adipose tissue causing lipodystrophy.
Collapse
Affiliation(s)
- A Polus
- Department of Clinical Biochemistry Jagiellonian University Medical College; Cracow, Poland.
| | - M Bociaga-Jasik
- Department of Gastroenterology, Hepatology and Infectious Diseases, Jagiellonian University Medical College, Cracow, Poland
| | - U Czech
- Department of Clinical Biochemistry Jagiellonian University Medical College; Cracow, Poland
| | - J Goralska
- Department of Clinical Biochemistry Jagiellonian University Medical College; Cracow, Poland
| | - U Cialowicz
- Department of Clinical Biochemistry Jagiellonian University Medical College; Cracow, Poland
| | - M Chojnacka
- Department of Clinical Biochemistry Jagiellonian University Medical College; Cracow, Poland
| | - M Polus
- Institute of Water Supply and Environmental Protection, Faculty of Environmental Engineering, Cracow University of Technology, Cracow, Poland
| | - K Jurowski
- Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University, Cracow, Poland
| | - A Dembinska-Kiec
- Department of Clinical Biochemistry Jagiellonian University Medical College; Cracow, Poland
| |
Collapse
|
16
|
Chojnacka M, Pędziwiatr K, Skowrońska-Gardas A, Perek-Polnik M, Perek D, Olasek P. Second brain tumors following central nervous system radiotherapy in childhood. Br J Radiol 2014; 87:20140211. [PMID: 24968876 DOI: 10.1259/bjr.20140211] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE The second tumour (ST) occurrence is a relatively uncommon late complication of radiotherapy but represents one of the most significant issues, especially in childhood oncology. We describe our experience with patients who developed second brain neoplasm following cranial irradiation in childhood. METHODS We identified nine patients who received radiotherapy owing to central nervous system tumour in childhood and subsequently developed the second brain tumour. The full clinical and radiological documentation and histopathological reports were reviewed. Risk factors such as age at irradiation, latency period to ST diagnosis, radiotherapy doses and volumes and other therapy methods were evaluated. We correlated the ST location with the three levels of irradiation dose (high, >40 Gy; medium, 25-40 Gy; and low <25 Gy). RESULTS Five meningiomas and four gliomas occurred as the ST after the mean time of 11.7 years after radiotherapy. The average age of children during irradiation was 4.6 years. The shorter latency time to the ST induction was found in children treated with chemotherapy (9 years vs 17.2 years). Seven STs developed in the area of high and moderate dose (>25 Gy), only two low-grade gliomas appeared in the low-dose region. CONCLUSION Our data suggest that the STs usually develop in the brain tissues that received doses >25 Gy in patients irradiated at a young age. ADVANCES IN KNOWLEDGE The low-dose volume seems not to be so significant for second brain neoplasm induction. Therefore, the modern intensity-modulated radiotherapy technique could be safely applied in paediatric patients.
Collapse
Affiliation(s)
- M Chojnacka
- 1 Department of Radiotherapy, M. Skłodowska-Curie Memorial Cancer Center-Institute, Warsaw, Wawelska, Poland
| | | | | | | | | | | |
Collapse
|
17
|
Antony R, Zagardo M, Gujrati M, Lin J, Antony R, Al-Rahawan M, Zagardo M, Gujrati M, Lin J, Broniscer A, Bhardwaj R, Hampton C, Ozols V, Chakravadhanula M, Bouffet E, Hawkins C, Scheinemann K, Zelcer S, Johnston D, Lafay-Cousin L, Larouche V, Jabado N, Carret AS, Hukin J, Eisenstat D, Pond G, Poskitt K, Wilson B, Bartels U, Tabori U, Dhall G, Haley K, Finlay J, Rushing T, Sposto R, Seeger R, Garvin J, Rupani K, Stark E, Anderson R, Feldstein N, Grill J, Hargrave D, Massimino M, Jaspan T, Varlet P, Jones C, Morgan P, Le Deley MC, Azizi A, Canete A, Bouffet E, Saran F, Bachir J, Bubuteishvili-Pacaud L, Rousseau R, Vassal G, Gupta S, Robinson N, Dhir N, Wong K, Zhou S, Finlay J, Dhall G, Kumabe T, Kawaguchi T, Saito R, Kanamori M, Yamashita Y, Sonoda Y, Tominaga T, Miyagawa T, Nwachukwu C, Youland R, Laack N, Filipek I, Drogosiewicz M, Polnik MP, Swieszkowska E, Dembowska-Baginska B, Jurkiewicz E, Perek D, Perek D, Dembowska-Baginska B, Drogosiewicz M, Polnik MP, Grajkowska W, Roszkowski M, Sobol G, Musiol K, Wachowiak J, Kazmierczak B, Pogorzelski JP, Mlynarski W, Szewczyk BZ, Wysocki M, Niedzielska E, Kowalczyk J, Slusarz HW, Balwierz W, Czepko EZ, Szolkiewicz A, Perek D, Perek-Polnik M, Dembowska-Baginska B, Drogosiewicz M, Grajkowska W, Lastowska M, Chojnacka M, Filipek I, Tarasinska M, Roszkowski M, Perreault S, Chao K, Ramaswamy V, Shih D, Remke M, Luu B, Schubert S, Fisher P, Partap S, Vogel H, Taylor M, Goumnerova L, Cho YJ, Robison N, Dhall G, Brown R, Cloughesy T, Davidson TB, Krieger M, Berger M, Wong K, Perry A, Gilles F, Finlay JL, Robison N, Dhir N, Khemani J, Wong K, Gupta S, Britt B, Grimm J, Finlay J, Dhall G, Ruge MI, Blau T, Hafkemeyer V, Hamisch C, Klinger K, Simon T, Sadighi Z, Ellezam B, Guindani M, Ater J, Shimizu Y, Arai H, Miyajima M, Shimoji K, Kondo A, Shinohara E, Perkins S, DeWees T, Slavc I, Chocholous M, Leiss U, Haberler C, Peyrl A, Azizi AA, Dieckmann K, Woehrer A, Dorfer C, Czech T, Spence T, Picard D, Barszczyk M, Kim SK, Ra YS, Fangusaro J, Toledano H, Nakamura H, Lafay-Cousin L, Fan X, Muraszko KM, Ng HK, Bouffet E, Halliday W, Shago M, Hawkins CE, Huang A, Suzuki M, Kondo A, Miyajima M, Arai H, van Zanten SV, Jansen M, van Vuurden D, Hulleman E, Idema S, Noske D, Wolf N, Hendrikse H, Vandertop P, Kaspers GJ, Muller K, Schlamann A, Warmuth-Metz M, Pietsch T, Pietschmann S, Kortmann RD, Kramm CM, von Bueren AO, Walston S, Williams T, Hamstra D, Oh K, Pelloski C, Zhukova N, Pole J, Mistry M, Fried I, Bartels U, Huang A, Lapperiere N, Dirks P, Scheinemann K, An J, Alon N, Nathan P, Greenberg M, Bouffet E, Malkin D, Hawkins C, Tabori U. PEDIATRICS CLINICAL RESEARCH. Neuro Oncol 2013; 15:iii165-iii172. [PMCID: PMC3823900 DOI: 10.1093/neuonc/not185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
|
18
|
Li KKW, Pang JCS, Ng HK, Massimino M, Gandola L, Biassoni V, Spreafico F, Schiavello E, Poggi G, Casanova M, Pecori E, De Pava MV, Ferrari A, Meazza C, Terenziani M, Polastri D, Luksch R, Podda M, Modena P, Antonelli M, Giangaspero F, Ahmed S, Zaghloul MS, Mousa AG, Eldebawy E, Elbeltagy M, Awaad M, Massimino M, Gandola L, Biassoni V, Antonelli M, Schiavello E, Buttarelli F, Spreafico F, Collini P, Pollo B, Patriarca C, Giangaspero F, MacDonald T, Liu J, Munson J, Park J, Wang K, Fei B, Bellamkonda R, Arbiser J, Gomi A, Yamaguchi T, Mashiko T, Oguro K, Somasundaram A, Neuberg R, Grant G, Fuchs H, Driscoll T, Becher O, McLendon R, Cummings T, Gururangan S, Bourdeaut F, Grison C, Doz F, Pierron G, Delattre O, Couturier J, Cho YJ, Pugh T, Weeraratne SD, Archer T, Krummel DP, Auclair D, Cibulkis K, Lawrence M, Greulich H, McKenna A, Ramos A, Shefler E, Sivachenko A, Amani V, Pierre-Francois J, Teider N, Northcott P, Taylor M, Meyerson M, Pomeroy S, Potts C, Cline H, Rotenberry R, Guldal C, Bhatia B, Nahle Z, Kenney A, Fan YN, Pizer B, See V, Makino K, Nakamura H, Kuratsu JI, Grahlert J, Ma M, Fiaschetti G, Shalaby T, Grotzer M, Baumgartner M, Clifford S, Gustafsson G, Ellison D, Figarella-Branger D, Doz F, Rutkowski S, Lannering B, Pietsch T, Fiaschetti G, Shalaby T, Baumgartner M, Grotzer M, Fleischhack G, Siegler N, Zimmermann M, Rutkowski S, Warmuth-Metz M, Kortmann RD, Pietsch T, Faldum A, Bode U, Yoon JH, Kang HJ, Park KD, Park SH, Phi JH, Kim SK, Wang KC, Kim IH, Shin HY, Ahn HS, Faria C, Golbourn B, Smith C, Rutka J, Greene BD, Whitton A, Singh S, Scheinemann K, Hill R, Lindsey J, Howell C, Ryan S, Shiels K, Shrimpton E, Bailey S, Clifford S, Schwalbe E, Lindsey J, Williamson D, Hamilton D, Northcott P, O'Toole K, Nicholson SL, Lusher M, Gilbertson R, Hauser P, Taylor M, Taylor R, Ellison D, Bailey S, Clifford S, Kool M, Jones DTW, Jager N, Hovestadt V, Schuller U, Jabado N, Perry A, Cowdrey C, Croul S, Collins VP, Cho YJ, Pomeroy S, Eils R, Korshunov A, Lichter P, Pfister S, Northcott P, Shih D, Taylor M, Darabi A, Sanden E, Visse E, Siesjo P, Harris P, Venkataraman S, Alimova I, Birks D, Cristiano B, Donson A, Foreman N, Vibhakar R, Bertin D, Vallero S, Basso ME, Romano E, Peretta P, Morra I, Mussano A, Fagioli F, Kunkele A, De Preter K, Heukamp L, Thor T, Pajtler K, Hartmann W, Mittelbronn M, Grotzer M, Deubzer H, Speleman F, Schramm A, Eggert A, Schulte J, Bandopadhayay P, Kieran M, Manley P, Robison N, Chi S, Thor T, Mestdagh P, Vandesomple J, Fuchs H, Durner VG, de Angelis MH, Heukamp L, Kunkele A, Pajtler K, Eggert A, Schramm A, Schulte JH, Ohe N, Yano H, Nakayama N, Iwama T, Lastowska M, Perek-Polnik M, Grajkowska W, Malczyk K, Cukrowska B, Dembowska-Baginska B, Perek D, Othman RT, Storer L, Grundy R, Kerr I, Coyle B, Hulleman E, Lagerweij T, Biesmans D, Crommentuijn MHW, Cloos J, Tannous BA, Vandertop WP, Noske DP, Kaspers GJL, Wurdinger T, Bergthold G, El Kababri M, Varlet P, Dhermain F, Sainte-Rose C, Raquin MA, Valteau-Couanet D, Grill J, Dufour C, Burchill C, Hii H, Dallas P, Cole C, Endersby R, Gottardo N, Gevorgian A, Morozova E, Kazantsev I, Youhta T, Safonova S, Kozlov A, Punanov Y, Afanasyev B, Zheludkova O, Packer R, Gajjar A, Michalski J, Jakacki R, Gottardo N, Tarbell N, Vezina G, Olson J, Friedrich C, von Bueren AO, von Hoff K, Gerber NU, Benesch M, Faldum A, Pietsch T, Warmuth-Metz M, Kuehl J, Kortmann RD, Rutkowski S, Malbari F, Atlas M, Friedman G, Kelly V, Bray A, Cassady K, Markert J, Gillespie Y, Taylor R, Howman A, Brogden E, Robinson K, Jones D, Gibson M, Bujkiewicz S, Mitra D, Saran F, Michalski A, Pizer B, Jones DTW, Jager N, Kool M, Zichner T, Hutter B, Sultan M, Cho YJ, Pugh TJ, Warnatz HJ, Reifenberger G, Northcott PA, Taylor MD, Meyerson M, Pomeroy SL, Yaspo ML, Korbel JO, Korshunov A, Eils R, Pfister SM, Lichter P, Pajtler KW, Weingarten C, Thor T, Kuenkele A, Fleischhack G, Heukamp LC, Buettner R, Kirfel J, Eggert A, Schramm A, Schulte JH, Friedrich C, von Bueren AO, von Hoff K, Gerber NU, Benesch M, Kwiecien R, Pietsch T, Warmuth-Metz M, Faldum A, Kuehl J, Kortmann RD, Rutkowski S, Lupo P, Scheurer M, Martin A, Nirschl C, Polanczyk M, Cohen KJ, Pardoll DM, Drake CG, Lim M, Manoranjan B, Hallett R, Wang X, Venugopal C, McFarlane N, Sheinemann K, Hassell J, Singh S, Venugopal C, Manoranjan B, McFarlane N, Whitton A, Delaney K, Scheinemann K, Singh S, Manoranjan B, Hallett R, Venugopal C, McFarlane N, Hassell J, Scheinemann K, Dunn S, Singh S, Garcia I, Crowther AJ, Gama V, Miller CR, Deshmukh M, Gershon TR, Garcia I, Crowther AJ, Gershon TR, Gerber NU, von Hoff K, Friedrich C, von Bueren AO, Treulieb W, Benesch M, Faldum A, Pietsch T, Warmuth-Metz M, Rutkowski S, Kortmann RD, Zin A, De Bortoli M, Bonvini P, Viscardi E, Perilongo G, Rosolen A, Connolly E, Zhang C, Anderson R, Feldstein N, Stark E, Garvin J, Shing MMK, Lee V, Cheng FWT, Leung AWK, Zhu XL, Wong HT, Kam M, Li CK, Ward S, Sengupta R, Kroll K, Rubin J, Dallas P, Milech N, Longville B, Hopkins R, Vergiliana JVD, Endersby R, Gottardo N, von Bueren AO, Gerss J, Hagel C, Cai H, Remke M, Hasselblatt M, Feuerstein BG, Pernet S, Delattre O, Korshunov A, Rutkowski S, Pfister SM, Baudis M, Lee C, Fotovati A, Triscott J, Dunn S, Valdora F, Freier F, Seyler C, Brady N, Bender S, Northcott P, Kool M, Jones D, Coco S, Tonini GP, Scheurlen W, Boutros M, Taylor M, Katus H, Kulozik A, Zitron E, Korshunov A, Lichter P, Pfister S, Remke M, Shih DJH, Northcott PA, Van Meter T, Pollack IF, Van Meir E, Eberhart CG, Fan X, Dellatre O, Collins VP, Jones DTW, Clifford SC, Pfister SM, Taylor MD, Pompe R, von Bueren AO, von Hoff K, Friedrich C, Treulieb W, Lindow C, Deinlein F, Kuehl J, Rutkowski S, Gupta T, Krishnatry R, Shirsat N, Epari S, Kunder R, Kurkure P, Vora T, Moiyadi A, Jalali R, Cohen K, Perek D, Perek-Polnik M, Dembowska-Baginska B, Drogosiewicz M, Grajkowska W, Lastowska M, Chojnacka M, Filipek I, Tarasinska M, Roszkowski M, Hauser P, Jakab Z, Bognar L, Markia B, Gyorsok Z, Ottoffy G, Nagy K, Cservenyak J, Masat P, Turanyi E, Vizkeleti J, Krivan G, Kallay K, Schuler D, Garami M, Lacroix J, Schlund F, Adolph K, Leuchs B, Bender S, Hielscher T, Pfister S, Witt O, Schlehofer JR, Rommelaere J, Witt H, Leskov K, Ma N, Eberhart C, Stearns D, Dagri JN, Torkildson J, Evans A, Ashby LS, Zakotnik B, Brown RJ, Dhall G, Portnow J, Finlay JL, McCabe M, Pizer B, Marino AM, Baryawno N, Ekstrom TP, Ostman A, Johnsen JI, Robinson G, Parker M, Kranenburg T, Lu C, Pheonix T, Huether R, Easton J, Onar A, Lau C, Bouffet E, Gururangan S, Hassall T, Cohn R, Gajjar A, Ellison D, Mardis E, Wilson R, Downing J, Zhang J, Gilbertson R, Robinson G, Dalton J, O'Neill T, Yong W, Chingtagumpala M, Bouffet E, Bowers D, Kellie S, Gururangan S, Fisher P, Bendel A, Fisher M, Hassall T, Wetmore C, Broniscer A, Clifford S, Gilbertson R, Gajjar A, Ellison D, Zhukova N, Martin D, Lipman T, Castelo-Branco P, Zhang C, Fraser M, Baskin B, Ray P, Bouffet E, Alman B, Ramaswamy V, Dirks P, Clifford S, Rutkowski S, Pfister S, Bristow R, Taylor M, Malkin D, Hawkins C, Tabori U, Dhall G, Ji L, Haley K, Gardner S, Sposto R, Finlay J, Leary S, Strand A, Ditzler S, Heinicke G, Conrad L, Richards A, Pedro K, Knoblaugh S, Cole B, Olson J, Yankelevich M, Budarin M, Konski A, Mentkevich G, Stefanits H, Ebetsberger-Dachs G, Weis S, Haberler C, Milosevic J, Baryawno N, Sveinbjornsson B, Martinsson T, Grotzer M, Johnsen JI, Kogner P, Garzia L, Morrisy S, Jelveh S, Lindsay P, Hill R, Taylor M, Marks A, Zhang H, Rood B, Williamson D, Clifford S, Aurtenetxe O, Gaffar A, Lopez JI, Urberuaga A, Navajas A, O'Halloran K, Hukin J, Singhal A, Dunham C, Goddard K, Rassekh SR, Davidson TB, Fangusaro JR, Ji L, Sposto R, Gardner SL, Allen JC, Dunkel IJ, Dhall G, Finlay JL, Trivedi M, Tyagi A, Goodden J, Chumas P, O'kane R, Crimmins D, Elliott M, Picton S, Silva DS, Viana-Pereira M, Stavale JN, Malheiro S, Almeida GC, Clara C, Jones C, Reis RM, Spence T, Sin-Chan P, Picard D, Ho KC, Lu M, Huang A, Bochare S, Khatua S, Gopalakrishnan V, Chan TSY, Picard D, Pfister S, Hawkins C, Huang A, Chan TSY, Picard D, Ho KC, Huang A, Picard D, Millar S, Hawkins C, Rogers H, Kim SK, Ra YS, Fangusaro J, Toledano H, Nakamura H, Van Meter T, Pomeroy S, Ng HK, Jones C, Gajjar A, Clifford S, Pfister S, Eberhart C, Bouffet E, Grundy R, Huang A, Sengupta S, Weeraratne SD, Phallen J, Sun H, Rallapalli S, Amani V, Pierre-Francois J, Teider N, Cook J, Jensen F, Lim M, Pomeroy S, Cho YJ. MEDULLOBLASTOMA. Neuro Oncol 2012; 14:i82-i105. [PMCID: PMC3483339 DOI: 10.1093/neuonc/nos093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023] Open
|
19
|
Staszel T, Zapała B, Polus A, Sadakierska-Chudy A, Kieć-Wilk B, Stępień E, Wybrańska I, Chojnacka M, Dembińska-Kieć A. Role of microRNAs in endothelial cell pathophysiology. Pol Arch Med Wewn 2011; 121:361-366. [PMID: 21946298] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
MicroRNAs (miRNAs) are a family of small, noncoding RNAs that repress gene expression at the post-transcriptional level. Over 700 miRNAs have been identified in the human genome, of which 20% to 30% regulate human protein-coding genes. Functional in vitro studies have shown that miRNAs are critical for endothelial cell gene expression and function. miRNAs were found in atherosclerosis, cardiac hypertrophy, arterial hypertension, coronary artery disease, diabetes, and inflammatory diseases. We review the current knowledge about the role of miRNAs in endothelial cells with emphasis on the regulation of cellular senescence, angiogenesis, and vascular inflammation. It has been shown that miR-34a, miR-217, miR-200, miR-146c, and miR-181a are responsible for the regulation of cell stress and proliferation processes. Proangiogenic factors include miR-130a, miR-210, miR-424, miR-17-92, miR-27-b, let-7f, and miR-217, while miR-221 and miR-222 have antiangiogenic properties. Other known miRNAs, including miR-31, miR17-3p, miR-155, miR-221, miR-222, and miR-126, are important factors in the regulation of vascular inflammation. Studies show that miRNA expression analysis can be used in the diagnosis and treatment of various diseases; however, additional research is needed before it is used in routine clinical setting.
Collapse
Affiliation(s)
- Teresa Staszel
- Genetic Diagnostics and Nutrigenomics Unit, Department of Clinical Biochemistry, Jagiellonian University, Medical College, Kraków, Poland
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Staszel T, Zapała B, Polus A, Sadakierska‑Chudy A, Kieć‑Wilk B, Stępień E, Wybrańska I, Chojnacka M, Dembińska‑Kieć A. Role of microRNAs in endothelial cell pathophysiology. Pol Arch Intern Med 2011. [DOI: 10.20452/pamw.1093] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
21
|
Mauri D, Kamposioras K, Polyzos NP, Rivas Flores FJ, Altinoz H, Chojnacka M, Karentzou I, Dambrosio M, Colichi C, Oxiuzova T, Kanavoura E, da Silva Alves de Sousa BAM, Ivanova D, Mauri J, Karampoiki V, Maragkaki A, Xilomenos A. Rethinking anticancer screening strategies saving lives at front line. Results from SESy_Europe task force. Exp Oncol 2006; 28:252-3. [PMID: 17128535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- D Mauri
- PACMeR sections of Oncology, Dermatology and Public Health, Athens, Greece
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Skowrońska-Gardas A, Chojnacka M, Pędziwiatr K. 17/Zastosowanie radioterapii konformalnej 3-D w leczeniu dzieci z wysokozróżnicowanymi nowotworami OUN. Rep Pract Oncol Radiother 2004. [DOI: 10.1016/s1507-1367(04)70873-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
23
|
Wójtowicz H, Chojnacka M, Młochowski J, Palus J, Syper L, Hudecova D, Uher M, Piasecki E, Rybka M. Functionalized alkyl and aryl diselenides as antimicrobial and antiviral agents: synthesis and properties. ACTA ACUST UNITED AC 2003; 58:1235-42. [PMID: 14630233 DOI: 10.1016/j.farmac.2003.08.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The different dialkyl and diaryl diselenides with carbamoyl and sulfamoyl moieties 2, 3, 5 and other substituents in the ortho position of benzene ring 4, 7, 8 as well as derivatives of 1,2,4-benzoselenadiazine (6) were designed as antiviral and antimicrobial agents and synthesized. Some of them, particularly 8a and 8b, were found in the antiviral assay in vitro to be strong inhibitors of cytopathic activity encephalomyocarditis virus (EMCV). The compound 4a and 8a were found to have a broad spectrum of acivity against bacteria, yeasts and pathogenic fungi in vitro.
Collapse
Affiliation(s)
- H Wójtowicz
- Institute of Organic Chemistry, Biochemistry and Biotechnology Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-375 Wrocław, Poland
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
|
25
|
Bielawski J, Chojnacka M, Kesa H. Acid phosphatase in the contents of the oesophagus and stomach of the snail, Helix pomatia L. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0300-9629(90)90023-l] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|