1
|
Papa L, Germain D. Expression of Concern: Estrogen receptor mediates a distinct mitochondrial unfolded protein response. J Cell Sci 2023; 136:jcs261591. [PMID: 37747424 PMCID: PMC11034875 DOI: 10.1242/jcs.261591] [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: 09/26/2023] Open
|
2
|
Papa L, Martin TC, Djedaini M, Zangui M, Ozbek U, Parsons R, Hoffman R, Schaniel C. Ex vivo reprogramming of human hematopoietic stem cells is accompanied by increased transcripts of genes regulating metabolic integrity. Exp Hematol 2023:S0301-472X(23)00157-1. [PMID: 37001723 DOI: 10.1016/j.exphem.2023.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/10/2023] [Accepted: 03/23/2023] [Indexed: 03/31/2023]
Abstract
The regenerative potential of human hematopoietic stem cells (HSCs) is functionally defined by their ability to provide life-long blood cell production and to repopulate myeloablated allogeneic transplant recipients. The expansion of HSC numbers is dependent not only on HSC divisions but also on a coordinated adaptation of HSCs to metabolic stress. These variables are especially critical during the ex vivo culture of HSCs with cytokine combinations, which frequently results in HSC exhaustion. We have previously reported that human CD34+ hematopoietic stem and progenitor cells (HSPCs) can be efficiently reprogrammed ex vivo and that the number of phenotypic HSCs with long-term repopulation capacity is expanded in the presence of a combination of cytokines and an epigenetic modifier. Here, we present evidence that ex vivo HSC reprogramming and maintenance is accompanied by increased transcripts of genes regulating metabolic integrity, including SIRT1 and SIRT3.
Collapse
|
3
|
Mullins K, Briscoe J, Bautz A, Tymkowicz A, Gokaraju M, Papa L. 24 Emergency Department Virtual Telehealth Rounding – A Strategy for a Pandemic and Beyond. Ann Emerg Med 2022. [PMCID: PMC9519198 DOI: 10.1016/j.annemergmed.2022.08.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
4
|
Zimran E, Papa L, Hoffman R. Ex vivo expansion of hematopoietic stem cells: Finally transitioning from the lab to the clinic. Blood Rev 2021; 50:100853. [PMID: 34112560 DOI: 10.1016/j.blre.2021.100853] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/28/2021] [Accepted: 06/02/2021] [Indexed: 01/17/2023]
Abstract
Hematopoietic stem cells (HSCs) have been used for therapeutic purposes for decades in the form of autologous and allogeneic transplantation and are currently emerging as an attractive target for gene therapy. A low stem cell dose is a major barrier to the application of HSC therapy in several situations, primarily umbilical cord blood transplantation and gene modification. Strategies that promote ex vivo expansion of the numbers of functional HSCs could overcome this barrier, hence have been the subject of intense and prolonged research. Several ex vivo expansion strategies have advanced to evaluation clinical trials, which are showing favorable outcomes along with convincing safety signals. Preclinical studies have recently confirmed beneficial incorporation of ex vivo expansion into HSC gene modification protocols. Collectively, ex vivo HSC expansion holds promise for significantly broadening the availability of cord blood units for transplantation, and for optimizing gene therapy protocols to enable their clinical application.
Collapse
Affiliation(s)
- Eran Zimran
- Hematology Department, Hadassah Medical Organization and Faculty of Medicine, Hebrew University of Jerusalem, Kiryat Hadassah 1, POB 1200, Jerusalem, 911200, Israel.
| | - Luena Papa
- Division of Hematology and Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levi Place, Box 1079, New York, NY 10029, USA.
| | - Ronald Hoffman
- Division of Hematology and Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levi Place, Box 1079, New York, NY 10029, USA.
| |
Collapse
|
5
|
Schaniel C, Papa L, Meseck ML, Kintali M, Djedaini M, Zangui M, Iancu-Rubin C, Hoffman R. Evaluation of a clinical-grade, cryopreserved, ex vivo-expanded stem cell product from cryopreserved primary umbilical cord blood demonstrates multilineage hematopoietic engraftment in mouse xenografts. Cytotherapy 2021; 23:841-851. [PMID: 34023194 DOI: 10.1016/j.jcyt.2021.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/19/2021] [Accepted: 04/02/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND AIMS Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a potentially curative therapy for a wide range of malignant and genetic disorders of the hematopoietic and immune systems. Umbilical cord blood (UCB) is a readily available source of stem cells for allo-HSCT, but the small fixed number of hematopoietic stem and progenitor cells (HSPCs) found in a single unit limits its widespread use in adult recipients. The authors have previously reported that culturing UCB-CD34+ cells in serum-free media supplemented with a combination of cytokines and the histone deacetylase inhibitor valproic acid (VPA) led to expansion of the numbers of functional HSPCs. Such fresh expanded product has been advanced to the clinic and is currently evaluated in an ongoing clinical trial in patients with hematological malignancies undergoing allo-HSCT. Here the authors report on the cryopreservation of this cellular product under current Good Manufacturing Practice (cGMP). METHODS cGMP VPA-mediated expansion was initiated with CD34+ cells isolated from cryopreserved primary UCB collections, and the functionality after a second cryopreservation step of the expanded product evaluted in vitro and in mouse xenografts. RESULTS The authors found that the cryopreserved VPA-expanded grafts were characterized by a high degree of viability, retention of HSPC phenotypic subtypes and maintenance of long-term multilineage repopulation capacity in immunocompromised mice. All cellular and functional parameters tested were comparable between the fresh and cryopreserved VPA-expanded cellular products. CONCLUSIONS The authors' results demonstrate and support the practicality of cryopreservation of VPA-expanded stem cell grafts derived from UCB-CD34+ cells for clinical utilization.
Collapse
Affiliation(s)
- Christoph Schaniel
- Division of Hematology/Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Mount Sinai Institute for Systems Biomedicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
| | - Luena Papa
- Division of Hematology/Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Marcia L Meseck
- Division of Hematology/Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Manisha Kintali
- Division of Hematology/Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Mansour Djedaini
- Division of Hematology/Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Mahtab Zangui
- Division of Hematology/Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Camelia Iancu-Rubin
- Division of Hematology/Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Division of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ronald Hoffman
- Division of Hematology/Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| |
Collapse
|
6
|
Feola M, Zamperone A, Moskop D, Chen H, Casu C, Lama D, Di Martino J, Djedaini M, Papa L, Martinez MR, Choesang T, Bravo-Cordero JJ, MacKay M, Zumbo P, Brinkman N, Abrams CS, Rivella S, Hattangadi S, Mason CE, Hoffman R, Ji P, Follenzi A, Ginzburg YZ. Pleckstrin-2 is essential for erythropoiesis in β-thalassemic mice, reducing apoptosis and enhancing enucleation. Commun Biol 2021; 4:517. [PMID: 33941818 PMCID: PMC8093212 DOI: 10.1038/s42003-021-02046-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 03/23/2021] [Indexed: 02/03/2023] Open
Abstract
Erythropoiesis involves complex interrelated molecular signals influencing cell survival, differentiation, and enucleation. Diseases associated with ineffective erythropoiesis, such as β-thalassemias, exhibit erythroid expansion and defective enucleation. Clear mechanistic determinants of what make erythropoiesis effective are lacking. We previously demonstrated that exogenous transferrin ameliorates ineffective erythropoiesis in β-thalassemic mice. In the current work, we utilize transferrin treatment to elucidate a molecular signature of ineffective erythropoiesis in β-thalassemia. We hypothesize that compensatory mechanisms are required in β-thalassemic erythropoiesis to prevent apoptosis and enhance enucleation. We identify pleckstrin-2-a STAT5-dependent lipid binding protein downstream of erythropoietin-as an important regulatory node. We demonstrate that partial loss of pleckstrin-2 leads to worsening ineffective erythropoiesis and pleckstrin-2 knockout leads to embryonic lethality in β-thalassemic mice. In addition, the membrane-associated active form of pleckstrin-2 occurs at an earlier stage during β-thalassemic erythropoiesis. Furthermore, membrane-associated activated pleckstrin-2 decreases cofilin mitochondrial localization in β-thalassemic erythroblasts and pleckstrin-2 knockdown in vitro induces cofilin-mediated apoptosis in β-thalassemic erythroblasts. Lastly, pleckstrin-2 enhances enucleation by interacting with and activating RacGTPases in β-thalassemic erythroblasts. This data elucidates the important compensatory role of pleckstrin-2 in β-thalassemia and provides support for the development of targeted therapeutics in diseases of ineffective erythropoiesis.
Collapse
Affiliation(s)
- Maria Feola
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- University of Piemonte Orientale, Amedeo Avogadro, Novara, Italy
| | - Andrea Zamperone
- Perlmutter Cancer Center, New York University Langone Medical Center, New York, NY, USA
| | - Daniel Moskop
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Huiyong Chen
- Erythropoiesis Laboratory, New York Blood Center, New York, NY, USA
- Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, China
| | - Carla Casu
- Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Dechen Lama
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Julie Di Martino
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Mansour Djedaini
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Luena Papa
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marc Ruiz Martinez
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Tenzin Choesang
- Erythropoiesis Laboratory, New York Blood Center, New York, NY, USA
| | | | | | - Paul Zumbo
- Weill Cornell Medical College, New York, NY, USA
| | | | - Charles S Abrams
- Perelman Center for Advanced Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | | | | | | | - Ronald Hoffman
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Peng Ji
- Northwestern University, Chicago, IL, USA
| | - Antonia Follenzi
- University of Piemonte Orientale, Amedeo Avogadro, Novara, Italy
| | - Yelena Z Ginzburg
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| |
Collapse
|
7
|
Papa L, Djedaini M, Kintali M, Schaniel C, Hoffman R. Ex Vivo Expansion of Adult Hematopoietic Stem and Progenitor Cells with Valproic Acid. Methods Mol Biol 2021; 2185:267-280. [PMID: 33165854 DOI: 10.1007/978-1-0716-0810-4_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2022]
Abstract
Umbilical cord blood (UCB) units provide an alternative source of human hematopoietic stem cells (HSCs) for patients who require allogeneic stem cell transplantation but lack a matched donor. However, the limited number of HSCs within each UCB unit remains a major challenge for their use in regenerative medicine and HSC transplantation in adults. Efficient expansion of human HSCs in ex vivo cultures initiated with CD34+ cells isolated from UCBs can overcome this limitation. The method described here utilizes a deacetylase inhibitor, valproic acid (VPA), to rapidly expand to a high degree the numbers of functional HSCs and committed progenitors (HPCs). The expanded HSCs are capable of establishing both short-term and long-term multilineage hematopoietic reconstitution. This highly reproducible and simple protocol can be also applied to expansion of both HSCs and HPCs from different sources including the bone marrow and peripheral blood.
Collapse
Affiliation(s)
- Luena Papa
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Mansour Djedaini
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Manisha Kintali
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Christoph Schaniel
- Department of Pharmacological Sciences, Mount Sinai Institute for System Biomedicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Cell, Developmental and Regenerative Biology, Black Family Stem Cell Institute, Mount Sinai Institute for System Biomedicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ronald Hoffman
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| |
Collapse
|
8
|
Papa L, Djedaini M, Martin TC, Zangui M, Beaumont KG, Sebra R, Parsons R, Schaniel C, Hoffman R. Limited Mitochondrial Activity Coupled With Strong Expression of CD34, CD90 and EPCR Determines the Functional Fitness of ex vivo Expanded Human Hematopoietic Stem Cells. Front Cell Dev Biol 2020; 8:592348. [PMID: 33384995 PMCID: PMC7769876 DOI: 10.3389/fcell.2020.592348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/10/2020] [Indexed: 01/04/2023] Open
Abstract
Ex vivo expansion strategies of human hematopoietic stem cell (HSC) grafts with suboptimal stem cell dose have emerged as promising strategies for improving outcomes of HSC transplantation in patients with hematological malignancies. While exposure of HSCs to ex vivo cultures expands the number of phenotypically identifiable HSCs, it frequently alters the transcriptomic and metabolic profiles, therefore, compromising their long-term (LT) hematopoietic reconstitution capacity. Within the heterogeneous pool of expanded HSCs, the precise phenotypic, transcriptomic and metabolic profile and thus, the identity of HSCs that confer LT repopulation potential remains poorly described. Utilizing valproic acid (VPA) in ex vivo cultures of umbilical cord blood (UCB)-CD34+ cells, we demonstrate that expanded HSCs phenotypically marked by expression of the stem cell markers CD34, CD90 and EPCR (CD201) are highly enriched for LT-HSCs. Furthermore, we report that low mitochondrial membrane potential, and, hence, mitochondrial activity distinguishes LT-HSCs within the expanded pool of phenotypically defined HSCs. Remarkably, such reduced mitochondrial activity is restricted to cells with the highest expression levels of CD34, CD90 and EPCR phenotypic markers. Together, our findings reveal that high expression of CD34, CD90 and EPCR in conjunction with low mitochondrial activity is critical for identification of functional LT-HSCs generated within ex vivo expansion cultures.
Collapse
Affiliation(s)
- Luena Papa
- Division of Hematology and Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Mansour Djedaini
- Division of Hematology and Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Tiphaine C Martin
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Mahtab Zangui
- Division of Hematology and Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Kristin G Beaumont
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Robert Sebra
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ramon Parsons
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Christoph Schaniel
- Division of Hematology and Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Mount Sinai Institute for Systems Biomedicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ronald Hoffman
- Division of Hematology and Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| |
Collapse
|
9
|
Papa L, Djedaini M, Hoffman R. Cover Image, Volume 1466, Issue 1. Ann N Y Acad Sci 2020. [DOI: 10.1111/nyas.14361] [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: 11/28/2022]
|
10
|
Zimran E, Papa L, Djedaini M, Patel A, Iancu-Rubin C, Hoffman R. Expansion and preservation of the functional activity of adult hematopoietic stem cells cultured ex vivo with a histone deacetylase inhibitor. Stem Cells Transl Med 2020; 9:531-542. [PMID: 31950644 PMCID: PMC7103619 DOI: 10.1002/sctm.19-0199] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 12/27/2019] [Indexed: 12/17/2022] Open
Abstract
Attempts to expand ex vivo the numbers of human hematopoietic stem cells (HSCs) without compromising their marrow repopulating capacity and their ability to establish multilineage hematopoiesis has been the subject of intense investigation. Although most such efforts have focused on cord blood HSCs, few have been applied to adult HSCs, a more clinically relevant HSC source for gene modification. To date, the strategies that have been used to expand adult HSCs have resulted in modest effects or HSCs with lineage bias and a limited ability to generate T cells in vivo. We previously reported that culturing umbilical cord blood CD34+ cells in serum‐free media supplemented with valproic acid (VPA), a histone deacetylase inhibitor, and a combination of cytokines led to the expansion of the numbers of fully functional HSCs. In the present study, we used this same approach to expand the numbers of adult human CD34+ cells isolated from mobilized peripheral blood and bone marrow. This approach resulted in a significant increase in the numbers of phenotypically defined HSCs (CD34+CD45RA‐CD90+D49f+). Cells incubated with VPA also exhibited increased aldehyde dehydrogenase activity and decreased mitochondrial membrane potential, each functional markers of HSCs. Grafts harvested from VPA‐treated cultures were able to engraft in immune‐deficient mice and, importantly, to generate cellular progeny belonging to each hematopoietic lineage in similar proportion to that observed with unmanipulated CD34+ cells. These data support the utility of VPA‐mediated ex vivo HSC expansion for gene modification of adult HSCs.
Collapse
Affiliation(s)
- Eran Zimran
- Division of Hematology and Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY.,Hematology Department, Hadassah University Center, Jerusalem, Israel
| | - Luena Papa
- Division of Hematology and Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Mansour Djedaini
- Division of Hematology and Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Ami Patel
- Division of Hematology and Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Camelia Iancu-Rubin
- Division of Hematology and Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Ronald Hoffman
- Division of Hematology and Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| |
Collapse
|
11
|
Gigante B, Papa L, Bye A, Kunderfranco P, Viviani C, De Faire U, Briguori C, Bottai M, Condorelli G. P4154MicroRNA Signatures Predict Early Major Coronary Events in Middle Aged Men and Women. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0726] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The role of microRNA as biomarkers able to predict major coronary events (MACE) has not been fully elucidated, reproducibility being a critical issue.
Aim
To identify circulating microRNA signatures able to predict MACE.
Methods
We employed a PCR-based method to screen 754 microRNAs in a cohort of 60-year-olds (60YOs) from Stockholm, using a nested case-control design (100 cases vs 100 matched controls). The association of microRNAs and their interaction with the risk of MACE (myocardial infarction (MI), angina and sudden cardiac death) was estimated with random-effect logistic regression and expressed as OR with 95% CI. A bioinformatics approach identified microRNA clusters based on predicted targets. Main findings were tested in 58 MI and 60 age and sex matched referents from the the Nord-Trøndelag Health (HUNT) Study, a longitudinal population health study conducted in Norway.
Results
Fifty-five microRNAs were found to be associated with risk of MACE in the 60YO. MicroRNA-145-3p was associated with the largest estimated risk increase of MACE after adjustment for the common CV risk factors (OR: 2.18; 95% CI: 1.27–3.75). Interaction analysis revealed that increasing plasma levels of microRNA-320b modulated the association of 16 microRNAs with risk of MACE. As an example the estimated MACE risk associated with microRNA-145-3p was 1.47 (0.87–2.47) in the presence of low (<25th percentile) and 4.00 (1.79- 8.93) in the presence of high (>75th percentile) miRNA 320b expression levels. Sixteen microRNA pairs could be classified in 4 functional clusters with 492 predicted gene targets, mainly involved in the regulation of inflammation, thrombosis and lipid metabolism. Eight miRNAs interacting pairs belonging to cluster 2 and 4 showed a similar association trend with MI risk in the HUNT study.
Conclusions
We report the identification of microRNA signatures predicting risk of MACE in middle-aged Scandinavian men and women. These signatures could be a valuable tool to improve CV disease prediction in the aged.
Collapse
Affiliation(s)
- B Gigante
- Karolinska Institutet, Stockholm, Sweden
| | - L Papa
- Humanitas Clinical and Research Center – IRCCS, and Humanitas University, Cardiovascular Medicine, Milano, Italy
| | - A Bye
- Norwegian University of Science and Technology, Trondheim, Norway
| | - P Kunderfranco
- Humanitas Clinical and Research Center – IRCCS, and Humanitas University, Cardiovascular Medicine, Milano, Italy
| | - C Viviani
- Humanitas Clinical and Research Center – IRCCS, and Humanitas University, Cardiovascular Medicine, Milano, Italy
| | - U De Faire
- Karolinska Institutet, Stockholm, Sweden
| | | | - M Bottai
- Karolinska Institutet, Stockholm, Sweden
| | - G Condorelli
- Humanitas Clinical and Research Center – IRCCS, and Humanitas University, Cardiovascular Medicine, Milano, Italy
| |
Collapse
|
12
|
Dudek C, Ramirez J, Little I, Wiser K, Papa L, Ibrahim J. 375 Is the Use of Thromboelastography in the Acute Young Trauma Patient Associated With Outcome and the Type and Amount of Blood Products Received? Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.336] [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: 11/16/2022]
|
13
|
Papa L, Djedaini M, Hoffman R. Ex vivo HSC expansion challenges the paradigm of unidirectional human hematopoiesis. Ann N Y Acad Sci 2019; 1466:39-50. [PMID: 31199002 PMCID: PMC7216880 DOI: 10.1111/nyas.14133] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/30/2019] [Accepted: 05/10/2019] [Indexed: 12/21/2022]
Abstract
Understanding mechanisms that determine the behavior of human hematopoietic stem cells (HSCs) is essential for developing novel strategies to expand ex vivo the number of fully functional HSCs. In this review, we focus on the complex interplay between intrinsic mechanisms regulated by transcriptional and mitochondrial networks and extrinsic signals imposed by the bone marrow microenvironment, which in concert regulate the balance between HSC self‐renewal and differentiation. Such integrated signaling mechanisms that dictate the fate of HSCs in vivo must be recapitulated ex vivo to achieve successful expansion of clinically relevant HSCs. We also highlight some of the most recent ex vivo HSC expansion strategies that have currently entered clinical development. Finally, based on the evidence reviewed here and lessons learned from ex vivo HSC expansion, we raise some critical questions regarding HSC fate and the cellular plasticity of hematopoietic cells that challenge the unidirectional model of human hematopoiesis.
Collapse
Affiliation(s)
- Luena Papa
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Mansour Djedaini
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ronald Hoffman
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| |
Collapse
|
14
|
Markousis-Mavrogenis G, Koutsogeorgopoulou L, Apostolou D, Katsifis G, Dimitroulas T, Argyriou P, Papa L, Kanoupaki M, Angelopoulos E, Vernardos E, Kanoupakis G, Kolovou G, Mavrogeni SI. P175Diagnosing myocardial inflammation in systemic sclerosis and infective myocarditis: are the lake Louise criteria sufficient? Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | - D Apostolou
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - G Katsifis
- Naval Hospital of Athens, Athens, Greece
| | - T Dimitroulas
- Aristotle University of Thessaloniki, Department of Rheumatology, Thessaloniki, Greece
| | - P Argyriou
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - L Papa
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - M Kanoupaki
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - E Angelopoulos
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - E Vernardos
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - G Kanoupakis
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - G Kolovou
- Onassis Cardiac Surgery Center, Athens, Greece
| | | |
Collapse
|
15
|
Markousis-Mavrogenis G, Koutsogeorgopoulou L, Apostolou D, Katsifis G, Dimitroulas T, Argyriou P, Papa L, Kanoupaki M, Angelopoulos E, Vernardos E, Kanoupakis G, Kolovou G, Mavrogeni SI. 253Cardiovascular magnetic resonance pattern of acute cardiac events in systemic sclerosis. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez120.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | - D Apostolou
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - G Katsifis
- Naval Hospital of Athens, Athens, Greece
| | - T Dimitroulas
- Aristotle University of Thessaloniki, Department of Rheumatology, Thessaloniki, Greece
| | - P Argyriou
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - L Papa
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - M Kanoupaki
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - E Angelopoulos
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - E Vernardos
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - G Kanoupakis
- Mediterraneo Hospital, Cardiovascular MRI Unit, Athens, Greece
| | - G Kolovou
- Onassis Cardiac Surgery Center, Athens, Greece
| | | |
Collapse
|
16
|
Papa L, Djedaini M, Hoffman R. Ex Vivo Expansion of Hematopoietic Stem Cells from Human Umbilical Cord Blood-derived CD34+ Cells Using Valproic Acid. J Vis Exp 2019. [PMID: 31033947 DOI: 10.3791/59532] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Umbilical cord blood (UCB) units provide an alternative source of human hematopoietic stem cells (HSCs) for patients who require allogeneic bone marrow transplantation. While UCB has several unique advantages, the limited numbers of HSCs within each UCB unit limits their use in regenerative medicine and HSC transplantation in adults. Efficient expansion of functional human HSCs can be achieved by ex vivo culturing of CD34+ cells isolated from UCBs and treated with a deacetylase inhibitor, valproic acid (VPA). The protocol detailed here describes the culture conditions and methodology to rapidly isolate CD34+ cells and expand to a high degree a pool of primitive HSCs. The expanded HSCs are capable of establishing both short-term and long-term engraftment and are able to give rise to all types of differentiated hematopoietic cells. This method also holds potential for clinical application in autologous HSC gene therapy and provides an attractive approach to overcome the loss of functional HSCs associated with gene editing.
Collapse
Affiliation(s)
- Luena Papa
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai;
| | - Mansour Djedaini
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai
| | - Ronald Hoffman
- Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai
| |
Collapse
|
17
|
Bernardi G, Papa L, Laplume D, Tibalt R, Titanti P, Nannini E. Impact of antimicrobial stewardship programs in public hospitals in Argentina. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3651] [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: 11/27/2022] Open
|
18
|
Markousis-Mavrogenis G, Apostolou D, Koutsogeorgopoulou L, Katsifis G, Argyriou P, Velitsista S, Papa L, Kanoupaki M, Angelopoulos E, Vernardos E, Kanoupakis G, Kolovou G, Mavrogeni S. P3699Oedema-fibrosis in systemic sclerosis: comparison of a parametric cardiovascular magnetic resonance model to the Lake Louise criteria. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | | | - G Katsifis
- Naval Hospital of Athens, Athens, Greece
| | | | | | - L Papa
- Mediterraneo Hospital, Athens, Greece
| | | | | | | | | | - G Kolovou
- Onassis Cardiac Surgery Center, Athens, Greece
| | - S Mavrogeni
- Onassis Cardiac Surgery Center, Athens, Greece
| |
Collapse
|
19
|
Papa L, Amodio A, Biffi F, Mandara A. Impact of osteopathic therapy on proprioceptive balance and quality of life in patients with dizziness. J Bodyw Mov Ther 2017; 21:866-872. [PMID: 29037641 DOI: 10.1016/j.jbmt.2017.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 10/11/2016] [Revised: 01/30/2017] [Accepted: 02/26/2017] [Indexed: 11/30/2022]
Abstract
The aim of the study was to evaluate the efficacy of osteopathic manipulative treatment (OMT) in patients with Benign-Paroxysmal-Positional Vertigo (BPPV). Thirty-one patients with BPPV were randomly assigned into two groups: 19 patients received osteopathic treatments (TG) and 12 patients received sham therapy (SG), both in four weekly sessions. Before the first and the last treatment, those patients were evaluated using Dizziness Handicap Inventory (DHI) and stabilometric platform to assess lifestyle modification and balance functions. After the treatment session, TG compared to SG showed an improvement in DHI global (p = 0.02), functional (p = 0.03) and physical (p = 0.03) components, as well as a reduction of swinging area (p = 0.02). An association between swinging area and lifestyle measures (global [r = 0.53; p = 0.02]; functional [r = 0.50; p = 0.03]; physical [r = 0.60; p = 0.01]) changes were found in TG. These findings suggest that OMT could be a useful approach to reduce imbalance symptoms and to improve the quality of life in patients suffering from dizziness.
Collapse
Affiliation(s)
- L Papa
- European Research Centre for Osteopathic Medicine, Italy; International College of Osteopathic Medicine, Cinisello Balsamo (Milan), Italy.
| | - A Amodio
- International College of Osteopathic Medicine, Cinisello Balsamo (Milan), Italy
| | - F Biffi
- International College of Osteopathic Medicine, Cinisello Balsamo (Milan), Italy
| | - A Mandara
- European Research Centre for Osteopathic Medicine, Italy; International College of Osteopathic Medicine, Cinisello Balsamo (Milan), Italy
| |
Collapse
|
20
|
Abstract
Cancer cells have elevated levels of reactive oxygen species (ROS), which are generated in majority by the mitochondria. In the mitochondrial matrix, the manganese dismutase SOD2 acts as a major anti-oxidant enzyme. The deacetylase SIRT3 regulates the activity of SOD2. Recently, SIRT3 was reported to be decreased in 87% of breast cancers, resulting therefore in a decrease in the activity of SOD2 and an elevation in ROS. In addition to SIRT3, we recently reported that SOD2 itself is down-regulated in breast cancer cell lines upon activation of oncogenes, such as Ras. Since in absence of SOD2, superoxide levels are elevated and may cause irreversible damage, mechanisms must exist to retain superoxide below a critical threshold and maintain viability of cancer cells. The copper/zinc dismutase SOD1 localizes in the cytoplasm, the inter-membrane space of the mitochondria and the nucleus. Emerging evidences from several groups now indicate that SOD1 is overexpressed in cancers and that the activity of SOD1 may be essential to maintain cellular ROS under this critical threshold. This review summarizes the studies reporting important roles of SOD1 in cancer and addresses the potential cross-talk between the overexpression of SOD1 and the regulation of the mitochondrial unfolded protein response (UPR(mt)). While mutations in SOD1 is the cause of 20% of cases of familial amyotrophic lateral sclerosis (fALS), a devastating neurodegenerative disease, these new studies expand the role of SOD1 to cancer.
Collapse
Affiliation(s)
- Luena Papa
- From the Department of Medicine, Division of Hematology/Oncology, Tisch Cancer Institute Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY
| | - Giovanni Manfredi
- The Weill Cornell Medical College, Department of Neurology and Neuroscience, New York, New York
| | - Doris Germain
- From the Department of Medicine, Division of Hematology/Oncology, Tisch Cancer Institute Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY
| |
Collapse
|
21
|
Abstract
Cancer cells are characterized by elevated levels of reactive oxygen species, which are produced mainly by the mitochondria. The dismutase SOD2 localizes in the matrix and is a major antioxidant. The activity of SOD2 is regulated by the deacetylase SIRT3. Recent studies indicated that SIRT3 is decreased in 87% of breast cancers, implying that the activity of SOD2 is compromised. The resulting elevation in reactive oxygen species was shown to be essential for the metabolic reprograming toward glycolysis. Here, we show that SOD2 itself is down-regulated in breast cancer cell lines. Further, activation of oncogenes, such as Ras, promotes the rapid down-regulation of SOD2. Because in the absence of SOD2, superoxide levels are elevated in the matrix, we reasoned that mechanisms must exist to retain low levels of superoxide in other cellular compartments especially in the intermembrane space of the mitochondrial to avoid irreversible damage. The dismutase SOD1 also acts as an antioxidant, but it localizes to the cytoplasm and the intermembrane space of the mitochondria. We report here that loss of SOD2 correlates with the overexpression of SOD1. Further, we show that mitochondrial SOD1 is the main dismutase activity in breast cancer cells but not in non-transformed cells. In addition, we show that the SOD1 inhibitor LCS-1 leads to a drastic fragmentation and swelling of the matrix, suggesting that in the absence of SOD2, SOD1 is required to maintain the integrity of the organelle. We propose that by analogy to the cadherin switch during epithelial-mesenchymal transition, cancer cells also undergo a SOD switch during transformation.
Collapse
Affiliation(s)
- Luena Papa
- From the the Department of Medicine, Division of Hematology/Oncology, Tisch Cancer Institute, Mount Sinai School of Medicine, New York, New York 10029 and
| | | | | | | | | |
Collapse
|
22
|
Hatami R, Sieuwerts AM, Izadmehr S, Yao Z, Qiao RF, Papa L, Look MP, Smid M, Ohlssen J, Levine AC, Germain D, Burstein D, Kirschenbaum A, DiFeo A, Foekens JA, Narla G. KLF6-SV1 drives breast cancer metastasis and is associated with poor survival. Sci Transl Med 2013; 5:169ra12. [PMID: 23345610 DOI: 10.1126/scitranslmed.3004688] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Metastasis is the major cause of cancer mortality. A more thorough understanding of the mechanisms driving this complex multistep process will aid in the identification and characterization of therapeutically targetable genetic drivers of disease progression. We demonstrate that KLF6-SV1, an oncogenic splice variant of the KLF6 tumor suppressor gene, is associated with increased metastatic potential and poor survival in a cohort of 671 lymph node-negative breast cancer patients. KLF6-SV1 overexpression in mammary epithelial cell lines resulted in an epithelial-to-mesenchymal-like transition and drove aggressive multiorgan metastatic disease in multiple in vivo models. Additionally, KLF6-SV1 loss-of-function studies demonstrated reversion to an epithelial and less invasive phenotype. Combined, these findings implicate KLF6-SV1 as a key driver of breast cancer metastasis that distinguishes between indolent and lethal early-stage disease and provides a potential therapeutic target for invasive breast cancer.
Collapse
Affiliation(s)
- Raheleh Hatami
- Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, NY 10029, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Semmons S, Silvestri S, Ladde J, Thundiyil J, Papa L. 7 Introduction of the Emergency Medical Care Advocacy Direct Observation Tool. Ann Emerg Med 2012. [DOI: 10.1016/j.annemergmed.2012.07.030] [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]
|
24
|
Salinero E, Cramm K, Papa L. 3 In a Population of Patients Presenting to a Pediatric Emergency Department, Is Receiving a Text Message Reminder Associated With Increased Follow-up Compliance after Discharge? Ann Emerg Med 2012. [DOI: 10.1016/j.annemergmed.2012.06.030] [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: 10/27/2022]
|
25
|
Papa L, Shimonovoch S, Germain D. Abstract 1121: ER-negative breast cancer survive mitochondrial IMS-stress via SIRT3 activation. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-1121] [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
Mitochondrial dysfunction is central in carcinogenesis and has been associated with elevated levels of Reactive Oxygen Species (ROS). While moderate levels of ROS activate signaling cascade promoting tumor progression, high levels of ROS can lead to cell death. We previously demonstrated that Estrogen Receptor (ER)-positive breast cancer cells activate ER to overcome the mitochondrial impairment and reduce high levels of ROS induced by stress in the inter-mitochondrial membrane space (IMS). The ultimate outcome of ER activation is induction of a novel Unfolded Protein Response (UPR) that involves up-regulation of NRF-1, a major regulator of mitochondrial biogenesis as well as induction of OMI and proteasome, two critical elements of protein quality control required to monitor the quality of IMS proteins. In the present work, we have evidence that ER-negative breast cancer cells trigger a distinct mechanism to cope up with IMS-stress. Due to the lack of ER, the stress from the IMS is extended into the matrix of mitochondria leading to activation of the matrix deacetylase, SIRT3. SIRT3 is required to increase the antioxidant capacity by up-regulating the antioxidant enzyme, MnSOD and therefore reducing ROS. In addition, our results reveal that SIRT3 is essential for removal of the irreversible impaired mitochondria through mitophagy. Overall, our data indicate that ER-positive and ER-negative breast cancer induce different mechanism to conquer mitochondrial malfunction coupled with ROS overproduction and maintain their cellular integrity.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 1121. doi:1538-7445.AM2012-1121
Collapse
Affiliation(s)
- Luena Papa
- 1Department of Medicine, Division of Hematology and Oncology, Tisch Cancer Institute, Mount Sinai School of Medicine, New York, NY
| | - Shahar Shimonovoch
- 1Department of Medicine, Division of Hematology and Oncology, Tisch Cancer Institute, Mount Sinai School of Medicine, New York, NY
| | - Doris Germain
- 1Department of Medicine, Division of Hematology and Oncology, Tisch Cancer Institute, Mount Sinai School of Medicine, New York, NY
| |
Collapse
|
26
|
Hatami R, Ohlseen J, Izadmehr S, Sieuwerts AM, Papa L, Kirschenbaum A, Levine A, Germain D, Foekens JA, DiFeo A, Narla G. Abstract 5314: An oncogenic splice variant of the KLF6 tumor suppressor gene is associated with poor survival and is a potent driver of breast cancer metastasis. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-5314] [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
Breast cancer is a leading causes of cancer death in women worldwide. It is a heterogeneous and genetically complex disease has left a significant proportion of patients with inadequate treatment options. Since metastasis and drug resistance pose significant challengea in breast cancer treatment, elucidating the mechanisms of these processes is critical for understanding the key drivers of disease progression and for the development of targeted therapies. Accumulating evidence from our laboratory and other groups suggest that the tumor suppressor gene, KLF6, and its oncogenic splice variant, KLF6-SV1, play a role in breast cancer progression, dissemination, and chemoresistance. Here we demonstrate that in multiple independent clinical cohorts of over 1200 breast cancer patients with defined clinical outcome, high KLF6-SV1 mRNA levels in the primary tumor associated with poor survival and disease recurrence. Specifically, upregulated KLF6-SV1 expression in the primary tumors correlated with poor survival independent of disease stage and grade. Thus, we hypothesized that KLF6-SV1 is an early driver/molecular determinant of invasive breast cancer. In order to investigate the functional/biological relevance of KLF6-SV1 in breast cancer development and progression, we performed a series of experiments using retroviral-based overexpression in multiple non-tumorigenic, tumorigenic, and metastatic breast cancer cell lines. We demonstrated that overexpression of KLF6-SV1 increased mesenchymal marker gene expression, cellular survival, invasion, as well as the migratory potential of KLF6-SV1 transduced cells. Interestingly, KLF6-SV1 did not increase growth rate of these mammary epithelial cell lines, similar to the clinical data which showed an absence of a correlation between KLF6-SV1 expression and primary tumor size. In a 3D model KLF6-SV1 upregulation disrupted mammary acinar morphogenesis promoting complex multiacinar structures. To assay whether the KLF6-SV1-induced EMT phenotype conferred increased metastatic potential in vivo, we injected tumorigenic cells expressing high levels of KLF6-SV1 subcutaneously into immunodeficient mice. Strikingly, KLF6-SV1 overexpression alone drove the entire metastatic cascade resulting in dissemination to many organs including the liver, kidney, heart, lung, and spleen. Furthermore, KLF6-SV1 overexpression in a metastatic breast cancer cell line increased metastasis to the lungs and liver in an orthotopic model of the disease. This is consistent with our clinical data in which high KLF6-SV1 expression was correlated with decreased overall survival and metastasis free survival. Together these findings suggest a role for the KLF6-SV1 splice variant as a driver of breast cancer metastasis and validate its potential utility as a novel biomarker and therapeutic target for breast cancer.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 5314. doi:1538-7445.AM2012-5314
Collapse
Affiliation(s)
| | | | | | | | - Luena Papa
- 1Mt. Sinai School of Medicine, New York, NY
| | | | | | | | | | | | | |
Collapse
|
27
|
Lyon C, Papa L, Ramirez J, Brennan D, Morgan K. 286 Resource Utilization in Local versus Non-local Patients in a Pediatric Emergency Department. Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.316] [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]
|
28
|
Silvestri S, Ralls G, Hunter C, Wiepert E, Papa L. 198 Capnography Is a Reliable Method of Confirming Airway Device Placement in an Out-of-Hospital Cardiac Arrest Population. Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.226] [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: 11/27/2022]
|
29
|
Abstract
Unfolded protein responses (UPRs) of the endoplasmic reticulum and mitochondrial matrix have been described. Here, we show that the accumulation of proteins in the inter-membrane space (IMS) of mitochondria in the breast cancer cell line MCF-7 activates a distinct UPR. Upon IMS stress, overproduction of reactive oxygen species (ROS) and phosphorylation of AKT triggers estrogen receptor (ER) activity, which further upregulates the transcription of the mitochondrial regulator NRF1 and the IMS protease OMI (officially known as HTRA2). Moreover, we demonstrate that the IMS stress-induced UPR culminates in increased proteasome activity. Given our previous report on a proteasome- and OMI-dependent checkpoint that limits the import of IMS proteins, the findings presented in this study suggest that this newly discovered UPR acts as a cytoprotective response to overcome IMS stress.
Collapse
Affiliation(s)
- Luena Papa
- Tisch Cancer Institute, Department of Medicine, Division of Hematology/Oncology, Box 1079, Mount Sinai School of Medicine, New York NY 10029, USA
| | - Doris Germain
- Tisch Cancer Institute, Department of Medicine, Division of Hematology/Oncology, Box 1079, Mount Sinai School of Medicine, New York NY 10029, USA
| |
Collapse
|
30
|
Papa L, Germain D. Abstract 2096: Estrogen receptor alpha activation mediates a novel mitochondrial unfolded protein response. Cancer Res 2011. [DOI: 10.1158/1538-7445.am2011-2096] [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
Unfolded protein responses (UPR) of the endoplasmic-reticulum and of the matrix of the mitochondria have been described. Our data indicates that accumulation of proteins in the inter-membrane space of the mitochondria (IMS) activates a distinct UPR from that induced by stress in the mitochondrial matrix. We show that upon IMS-stress, cells activate the Estrogen Receptor (ERα) in a ligand independent fashion through ROS overproduction and AKT phosphorylation. ERα activation further triggers the induction of the mitochondrial regulator NRF-1 and the IMS protease Omi. In addition, IMS stress leads to an acceleration in the trypsin-like activity of the proteasome. Since we reported a proteasome and Omi-dependent checkpoint that limits the import of IMS proteins, these results suggest that this novel UPR acts as cyto-protective responses to overcome IMS-stress. Indeed, we show that whereas ERα is required for activation of these cyto-protective responses, its ligand-independent activation is necessary to prevent IMS stress-induced collapse in the mitochondrial potential. Notably, our result show that upon mitochondrial dysfunction, cells trigger the retrograde pathway involving the activation of ERα to facilitate the recovery of the physiological functions of the mitochondria and maintain their integrity.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr 2096. doi:10.1158/1538-7445.AM2011-2096
Collapse
Affiliation(s)
- Luena Papa
- 1Mount Sinai School of Medicine, Manhattan, NY
| | | |
Collapse
|
31
|
Ishii Y, Papa L, Bahadur U, Yue Z, Aguirre-Ghiso J, Shioda T, Waxman S, Germain D. Bortezomib enhances the efficacy of fulvestrant by amplifying the aggregation of the estrogen receptor, which leads to a proapoptotic unfolded protein response. Clin Cancer Res 2011; 17:2292-300. [PMID: 21292820 DOI: 10.1158/1078-0432.ccr-10-1745] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE Fulvestrant is known to promote the degradation of the estrogen receptor (ER) in the nucleus. However, fulvestrant also promotes the aggregation of the newly synthesized ER in the cytoplasm. Accumulation of protein aggregates leads to cell death but this effect is limited as a result of their elimination by the proteasome. We tested whether combining fulvestrant with the proteasome inhibitor, bortezomib, could enhance the accumulation of ER aggregates and cause apoptotic cell death. EXPERIMENTAL DESIGN The rate of aggregation of the ER was monitored in ER(+) breast cancer cells lines, T47D, ZR-75.1, BT474, MDA-MB-361, MCF-7, fulvestrant resistance MCF-7, and tamoxifen-resistant T47D-cyclin D1 cells. Activation of the unfolded protein response, apoptosis, and metabolic rate were also monitored in these cell lines following treatment with fulvestrant, bortezomib, or bortezomib in combination with fulvestrant. RESULTS We found that bortezomib enhances the fulvestrant-mediated aggregation of the ER in the cytoplasm without blocking the degradation of the ER in the nucleus. Further, these aggregates activate a sustained unfolded protein response leading to apoptotic cell death. Further, we show that the combination induced tumor regression in a breast cancer mouse model of tamoxifen resistance. CONCLUSIONS Adding bortezomib to fulvestrant enhances its efficacy by taking advantage of the unique ability of fulvestrant to promote cytoplasmic aggregates of the ER. As this effect of fulvestrant is independent of the transcriptional activity of the ER, these results suggest that this novel combination may be effective in breast cancers that are ER(+) but estrogen independent.
Collapse
Affiliation(s)
- Yuki Ishii
- Division of Hematology/Oncology, Tisch Cancer Institute and Department of Neurology and Neuroscience, Mount Sinai School of Medicine, New York, New York, USA
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Van Dillen CM, Silvestri S, Ralls G, Haney M, Papa L. 422: The Evaluation of Acute Wound Characteristics for Alternate Medical Treatment Site Disaster Planning. Ann Emerg Med 2010. [DOI: 10.1016/j.annemergmed.2010.06.545] [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: 10/19/2022]
|
33
|
Bullard T, Papa L, Nickolenko P. 257: Factors Impacting Hospital Consumer Assessment of Health Care Providers and Systems Scores. Ann Emerg Med 2010. [DOI: 10.1016/j.annemergmed.2010.06.306] [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: 10/19/2022]
|
34
|
Rosenberg M, Bullard T, Ladde J, Papa L. 171: Can Digital Photographs of CT Images Obtained and Transferred by Cell Phone Be Used to Predict the Need for Transfer to Tertiary Care Center. Ann Emerg Med 2010. [DOI: 10.1016/j.annemergmed.2010.06.218] [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: 10/19/2022]
|
35
|
Cassidy D, Papa L, Reimer F, Ritter C, Williams D, Townsend C. 180: Implementation of a Multifaceted Electrocardiogram Screening Policy In the Emergency Department and Its Impact on ST–Elevation Myocardial Infarction Percutaneous Coronary Intervention Times. Ann Emerg Med 2010. [DOI: 10.1016/j.annemergmed.2010.06.227] [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: 10/19/2022]
|
36
|
Ladde J, Bullard T, Rosenberg M, Papa L. 394: Can Cell Phone Digital Images Alter Neurosurgical Decisions to Transfer Patients Referred to a Level I Trauma Center? Ann Emerg Med 2010. [DOI: 10.1016/j.annemergmed.2010.06.450] [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: 11/30/2022]
|
37
|
|
38
|
Ladde J, Bullard T, Papa L. 269: The Impact of Declining Emergency Department Subspecialty Availability. Ann Emerg Med 2009. [DOI: 10.1016/j.annemergmed.2009.06.299] [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: 10/20/2022]
|
39
|
|
40
|
Ladde J, Rodgers N, Baker S, Papa L. 112: A Novel Incision and Drainage Technique in the Treatment of Skin Abscesses in a Pediatric Emergency Department. Ann Emerg Med 2008. [DOI: 10.1016/j.annemergmed.2008.06.026] [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: 10/21/2022]
|
41
|
Papa L, Gomes E, Rockwell P. Reactive oxygen species induced by proteasome inhibition in neuronal cells mediate mitochondrial dysfunction and a caspase-independent cell death. Apoptosis 2007; 12:1389-405. [PMID: 17415663 DOI: 10.1007/s10495-007-0069-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
While increasing evidence shows that proteasome inhibition triggers oxidative damage, mitochondrial dysfunction and death in neuronal cells, the regulatory relationship among these events is unclear. Using mouse neuronal cells we show that the cytotoxicity induced by mild (0.25 microM) and potent (5.0 microM) doses of the proteasome inhibitor, N-Benzyloxycarbonyl-Ile-Glu (O-t-butyl)-Ala-leucinal, (PSI) involved a dose-dependent increase in caspase activation, overproduction of reactive oxygen species (ROS) and a mitochondrial dysfunction manifested by the translocation of the proapoptotic protein, Bax, from the cytoplasm to the mitochondria, membrane depolarization and the release of cytochrome c and the apoptosis inducing factor (AIF) from mitochondria to the cytoplasm and nucleus, respectively. Whereas caspase or Bax inhibition failed to prevent mitochondrial membrane depolarization and neuronal cell death, pretreatments with the antioxidant N-acetyl-L-cysteine (NAC) or overexpression of the antiapoptotic protein Bcl-xL abrogated these events in cells exposed to mild levels of PSI. These findings implicated ROS as a mediator of PSI-induced cytotoxicity. However, depletions in glutathione and Bcl-xL with potent proteasome inhibition exacerbated this response whereupon survival required the cooperative protection of NAC with Bcl-xL overexpression. Collectively, ROS induced by proteasome inhibition mediates a mitochondrial dysfunction in neuronal cells that culminates in death through caspase- and Bax-independent mechanisms.
Collapse
Affiliation(s)
- Luena Papa
- Department of Biological Sciences, Hunter College of The City University of New York, 695 Park Ave, New York, NY 10021, USA
| | | | | |
Collapse
|
42
|
Cassidy D, Papa L, Bryan J. 54: Implementation of Alert Protocols in the Emergency Department for Myocardial Infarction, Community Acquired Pneumonia and Acute Cerebrovascular Accident and its Impact on Core Performance Measures. Ann Emerg Med 2007. [DOI: 10.1016/j.annemergmed.2007.06.085] [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]
|
43
|
Silvestri S, Briscoe J, Ralls G, Papa L. 261: Discrepancy Between Rates of Emergency Medical Dispatcher and First Response Unit Personnel Reported Bystander CPR. Ann Emerg Med 2007. [DOI: 10.1016/j.annemergmed.2007.06.247] [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: 11/25/2022]
|
44
|
Gomes E, Papa L, Hao T, Rockwell P. The VEGFR2 and PKA pathways converge at MEK/ERK1/2 to promote survival in serum deprived neuronal cells. Mol Cell Biochem 2007; 305:179-90. [PMID: 17646929 DOI: 10.1007/s11010-007-9542-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [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: 02/18/2007] [Accepted: 06/21/2007] [Indexed: 11/27/2022]
Abstract
Identifying prosurvival mechanisms in stressed neuronal cells would provide protective strategies to hinder neurodegeneration. Recent evidence shows that vascular endothelial growth factor (VEGF), a well-established mitogen in endothelial cells, can mediate neuroprotection against damaging insults through the activation of its cognate receptor VEGFR2. In addition, growth factor receptor signaling pathways have been shown to crosstalk with cAMP-dependent Protein Kinase A (PKA) to protect neuronal cells from harmful stimuli. Whether a relationship exists between VEGFR2 and PKA in mediating neuroprotection under stressful conditions is unknown. Using SK-N-SH neuronal cells as a model system, we show that serum deprivation induces an upregulation in VEGF and VEGFR2 that concomitantly serves as a prosurvival signaling pathway. Inhibitor studies revealed that PKA functioned concurrently with VEGFR2 pathway to signal the activation of the extracellular signal-regulated protein kinases (ERK1/2) as protection against caspase-3/7 activation and a subsequent cell death. The loss in cell viability induced by VEGFR2 and PKA inhibition was prevented by caspase inhibition or overexpression of ERK1. Overexpression of the antiapoptotic protein Bcl-xL also promoted survival when VEGFR2 function was blocked. However, the protection elicited by all three treatments were prevented by the inclusion of a selective inhibitor of mitogen-activated protein kinase kinase (MEK), the upstream kinase that activates ERK1/2. Taken together, these findings suggested that PKA and VEGFR2 converge at the MEK/ERK1/2 pathway to protect serum starved neuronal cells from a caspase-dependent cell death.
Collapse
Affiliation(s)
- Evan Gomes
- Department of Biological Sciences, Hunter College of The City University of New York, 695 Park Ave, New York, NY 10021, USA
| | | | | | | |
Collapse
|
45
|
Bullard T, Papa L, Wegst A, Batson J, Falk J. Estimating the Cumulative Risk of Ionizing Radiation Exposure from Diagnostic Testing in an Emergency Department Population: What do we Really Know? Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.797] [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: 11/10/2022]
|
46
|
Papa L, Hayes R, Robertson C, Jose P, Liu MC, Robinson G, Wang K, Oli M. Levels UCH-L1 in Human CSF and Severity of Injury Following Severe Traumatic Brain Injury. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.864] [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: 11/10/2022]
|
47
|
Papa L, Stiell I, Clement C, Ferguson K, Bruce G, Light J, Meurer D, Stair R. Sensitivity and Specificity of the Canadian CT Head Rule and the New Orleans Criteria in a US Trauma Center. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.822] [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: 11/10/2022]
|
48
|
Thundiyil J, Silvestri S, Modica R, Papa L. Are USMLE Scores Predictive of ABEM In-training Exam Scores for Emergency Medicine Residents? Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.917] [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: 11/10/2022]
|
49
|
Papa L, Goldfeder B, Trakulsrichai S, Rees E, Meurer D, Clapp A, Shaw C, Seaberg D. The Impact of an Accelerated Clinical Protocol with Outpatient Stress Testing in Chest Pain Patients at Low Risk of Acute Coronary Syndrome on Admission Rates. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.1171] [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: 11/10/2022]
|
50
|
Sun J, Silvestri S, Papa L, Diaz L, Swinghome M, Ralls G. The Impact of Emergency Department Paramedic Staffing on Emergency Medical Services Unit Off-load Time. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.927] [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: 11/10/2022]
|