1
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Sharma S, Chung CY, Uryu S, Petrovic J, Cao J, Rickard A, Nady N, Greasley S, Johnson E, Brodsky O, Khan S, Wang H, Wang Z, Zhang Y, Tsaparikos K, Chen L, Mazurek A, Lapek J, Kung PP, Sutton S, Richardson PF, Greenwald EC, Yamazaki S, Jones R, Maegley KA, Bingham P, Lam H, Stupple AE, Kamal A, Chueh A, Cuzzupe A, Morrow BJ, Ren B, Carrasco-Pozo C, Tan CW, Bhuva DD, Allan E, Surgenor E, Vaillant F, Pehlivanoglu H, Falk H, Whittle JR, Newman J, Cursons J, Doherty JP, White KL, MacPherson L, Devlin M, Dennis ML, Hattarki MK, De Silva M, Camerino MA, Butler MS, Dolezal O, Pilling P, Foitzik R, Stupple PA, Lagiakos HR, Walker SR, Hediyeh-Zadeh S, Nuttall S, Spall SK, Charman SA, Connor T, Peat TS, Avery VM, Bozikis YE, Yang Y, Zhang M, Monahan BJ, Voss AK, Thomas T, Street IP, Dawson SJ, Dawson MA, Lindeman GJ, Davis MJ, Visvader JE, Paul TA. Discovery of a highly potent, selective, orally bioavailable inhibitor of KAT6A/B histone acetyltransferases with efficacy against KAT6A-high ER+ breast cancer. Cell Chem Biol 2023; 30:1191-1210.e20. [PMID: 37557181 DOI: 10.1016/j.chembiol.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 02/07/2023] [Accepted: 07/16/2023] [Indexed: 08/11/2023]
Abstract
KAT6A, and its paralog KAT6B, are histone lysine acetyltransferases (HAT) that acetylate histone H3K23 and exert an oncogenic role in several tumor types including breast cancer where KAT6A is frequently amplified/overexpressed. However, pharmacologic targeting of KAT6A to achieve therapeutic benefit has been a challenge. Here we describe identification of a highly potent, selective, and orally bioavailable KAT6A/KAT6B inhibitor CTx-648 (PF-9363), derived from a benzisoxazole series, which demonstrates anti-tumor activity in correlation with H3K23Ac inhibition in KAT6A over-expressing breast cancer. Transcriptional and epigenetic profiling studies show reduced RNA Pol II binding and downregulation of genes involved in estrogen signaling, cell cycle, Myc and stem cell pathways associated with CTx-648 anti-tumor activity in ER-positive (ER+) breast cancer. CTx-648 treatment leads to potent tumor growth inhibition in ER+ breast cancer in vivo models, including models refractory to endocrine therapy, highlighting the potential for targeting KAT6A in ER+ breast cancer.
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Affiliation(s)
- Shikhar Sharma
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA.
| | - Chi-Yeh Chung
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Sean Uryu
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Jelena Petrovic
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Joan Cao
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Amanda Rickard
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Nataliya Nady
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | | | - Eric Johnson
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Oleg Brodsky
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Showkhin Khan
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Hui Wang
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Zhenxiong Wang
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Yong Zhang
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | | | - Lei Chen
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Anthony Mazurek
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - John Lapek
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Pei-Pei Kung
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Scott Sutton
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | | | - Eric C Greenwald
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Shinji Yamazaki
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Rhys Jones
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Karen A Maegley
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Patrick Bingham
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Hieu Lam
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA
| | - Alexandra E Stupple
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; CANThera Discovery, Melbourne, VIC 3000, Australia
| | - Aileen Kamal
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Anderly Chueh
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Anthony Cuzzupe
- SYNthesis Med Chem (Australia) Pty Ltd, Bio21 Institute, 30 Flemington Road, Parkville, VIC 3052, Australia
| | - Benjamin J Morrow
- Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia
| | - Bin Ren
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - Catalina Carrasco-Pozo
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Discovery Biology, Centre for Cellular Phenomics, Griffith University, Brisbane QLD 4111, Australia
| | - Chin Wee Tan
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Dharmesh D Bhuva
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Elizabeth Allan
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Elliot Surgenor
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - François Vaillant
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Havva Pehlivanoglu
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Hendrik Falk
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - James R Whittle
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Janet Newman
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - Joseph Cursons
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Judy P Doherty
- Peter MacCallum Cancer Centre, Melbourne VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Karen L White
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Laura MacPherson
- Peter MacCallum Cancer Centre, Melbourne VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Mark Devlin
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Peter MacCallum Cancer Centre, Melbourne VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Matthew L Dennis
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - Meghan K Hattarki
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - Melanie De Silva
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Michelle A Camerino
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Miriam S Butler
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Peter MacCallum Cancer Centre, Melbourne VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Olan Dolezal
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - Patricia Pilling
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - Richard Foitzik
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; OncologyOne Pty Ltd, Melbourne, VIC 3000, Australia
| | - Paul A Stupple
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; CANThera Discovery, Melbourne, VIC 3000, Australia
| | - H Rachel Lagiakos
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Scott R Walker
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - Soroor Hediyeh-Zadeh
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Stewart Nuttall
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - Sukhdeep K Spall
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Susan A Charman
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Theresa Connor
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Peter MacCallum Cancer Centre, Melbourne VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Thomas S Peat
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO), Parkville, VIC 3052, Australia
| | - Vicky M Avery
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Discovery Biology, Centre for Cellular Phenomics, Griffith University, Brisbane QLD 4111, Australia
| | - Ylva E Bozikis
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; Medicinal Chemistry and Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Yuqing Yang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Ming Zhang
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Brendon J Monahan
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia; CANThera Discovery, Melbourne, VIC 3000, Australia
| | - Anne K Voss
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Tim Thomas
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Ian P Street
- Cancer Therapeutics CRC, Melbourne, VIC 3000, Australia; The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia; OncologyOne Pty Ltd, Melbourne, VIC 3000, Australia; Children's Cancer Institute, Randwick, NSW 2031, Australia; University of New South Wales, Randwick, NSW 2021, Australia
| | - Sarah-Jane Dawson
- Peter MacCallum Cancer Centre, Melbourne VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Mark A Dawson
- Peter MacCallum Cancer Centre, Melbourne VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Geoffrey J Lindeman
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC 3010, Australia; Parkville Familial Cancer Centre and Department of Medical Oncology, The Royal Melbourne Hospital and Peter MacCallum Cancer Centre, Parkville, VIC 3050, Australia
| | - Melissa J Davis
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia; Department of Clinical Pathology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Jane E Visvader
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Thomas A Paul
- Pfizer, Oncology Research & Development, San Diego, CA 92121, USA.
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2
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Guirguis AA, Ofir-Rosenfeld Y, Knezevic K, Blackaby W, Hardick D, Chan YC, Motazedian A, Gillespie A, Vassiliadis D, Lam EYN, Tran K, Andrews B, Harbour ME, Vasiliauskaite L, Saunders CJ, Tsagkogeorga G, Azevedo A, Obacz J, Pilka ES, Carkill M, MacPherson L, Wainwright EN, Liddicoat B, Blyth BJ, Albertella MR, Rausch O, Dawson MA. Inhibition of METTL3 Results in a Cell-Intrinsic Interferon Response That Enhances Antitumor Immunity. Cancer Discov 2023; 13:2228-2247. [PMID: 37548590 DOI: 10.1158/2159-8290.cd-23-0007] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 01/03/2023] [Revised: 06/06/2023] [Accepted: 08/02/2023] [Indexed: 08/08/2023]
Abstract
Therapies that enhance antitumor immunity have altered the natural history of many cancers. Consequently, leveraging nonoverlapping mechanisms to increase immunogenicity of cancer cells remains a priority. Using a novel enzymatic inhibitor of the RNA methyl-transferase METTL3, we demonstrate a global decrease in N6-methyladenosine (m6A) results in double-stranded RNA (dsRNA) formation and a profound cell-intrinsic interferon response. Through unbiased CRISPR screens, we establish dsRNA-sensing and interferon signaling are primary mediators that potentiate T-cell killing of cancer cells following METTL3 inhibition. We show in a range of immunocompetent mouse models that although METTL3 inhibition is equally efficacious to anti-PD-1 therapy, the combination has far greater preclinical activity. Using SPLINTR barcoding, we demonstrate that anti-PD-1 therapy and METTL3 inhibition target distinct malignant clones, and the combination of these therapies overcomes clones insensitive to the single agents. These data provide the mole-cular and preclinical rationale for employing METTL3 inhibitors to promote antitumor immunity in the clinic. SIGNIFICANCE This work demonstrates that METTL3 inhibition stimulates a cell-intrinsic interferon response through dsRNA formation. This immunomodulatory mechanism is distinct from current immunotherapeutic agents and provides the molecular rationale for combination with anti-PD-1 immune-checkpoint blockade to augment antitumor immunity. This article is featured in Selected Articles from This Issue, p. 2109.
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Affiliation(s)
- Andrew A Guirguis
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
- Department of Clinical Haematology, Peter MacCallum Cancer Centre and The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | | | - Kathy Knezevic
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | | | | | - Yih-Chih Chan
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
| | - Ali Motazedian
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
| | - Andrea Gillespie
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Dane Vassiliadis
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
| | - Enid Y N Lam
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
| | - Kevin Tran
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
| | | | | | | | | | - Georgia Tsagkogeorga
- Storm Therapeutics Ltd, Cambridge, United Kingdom
- Milner Therapeutics Institute, University of Cambridge, Cambridge, United Kingdom
| | | | - Joanna Obacz
- Storm Therapeutics Ltd, Cambridge, United Kingdom
| | | | - Marie Carkill
- Charles River Laboratories, Portishead, United -Kingdom
| | - Laura MacPherson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
| | - Elanor N Wainwright
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
| | - Brian Liddicoat
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
| | - Benjamin J Blyth
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
| | | | | | - Mark A Dawson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Victoria, Australia
- Department of Clinical Haematology, Peter MacCallum Cancer Centre and The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, -Victoria, Australia
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3
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Rosenfeld J, Gonzalez-Espinosa P, Jarvis L, Enders E, Bayly M, Paul A, MacPherson L, Moore J, Sullivan M, Ulaski M, Wilson K. Stressor-response functions as a generalizable model for context dependence. Trends Ecol Evol 2022; 37:1032-1035. [PMID: 36244864 DOI: 10.1016/j.tree.2022.09.010] [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] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 11/07/2022]
Abstract
Defining the context dependence of ecological states or processes is a fundamental goal of ecology. Stressor-response functions are the quantitative representation of context dependence, where the context (environmental contingency) is defined by location on the stressor (x) axis, and represents a unifying concept in biological science.
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Affiliation(s)
- Jordan Rosenfeld
- UBC Institute for the Oceans and Fisheries, 2202 Main Mall, Vancouver, BC, Canada V6T 1Z4; BC Ministry of Environment, Vancouver, B.C., Canada.
| | | | - Lauren Jarvis
- Canada Department of Fisheries and Oceans, Freshwater Institute, Winnipeg, Canada, R3T 2N6
| | - Eva Enders
- Institute National de la Recherche Scientifique, Centre Eau Terre Environnement, Québec, Canada, G1K 9A9
| | | | - Andrew Paul
- Office of the Chief Scientist, Edmonton, Alberta, Canada, T6H 4P2
| | - Laura MacPherson
- Alberta Environment and Parks, Edmonton, Alberta, Canada T6H 4P2
| | - Jonathan Moore
- Department of Biological Sciences, Simon Fraser University, Vancouver, BC, Canada, V5A 1S6
| | - Michael Sullivan
- Alberta Environment and Parks, Edmonton, Alberta, Canada T6H 4P2
| | - Marta Ulaski
- Department of Biological Sciences, Simon Fraser University, Vancouver, BC, Canada, V5A 1S6
| | - Kyle Wilson
- Central Coast Indigenous Resource Alliance, Campbell River, BC, Canada, V9A 4X1
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4
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Garciaz S, Guirguis AA, Müller S, Brown FC, Chan YC, Motazedian A, Rowe CL, Kuzich JA, Chan KL, Tran K, Smith L, MacPherson L, Liddicoat B, Lam EY, Cañeque T, Burr ML, Litalien V, Pomilio G, Poplineau M, Duprez E, Dawson SJ, Ramm G, Cox AG, Brown KK, Huang DC, Wei AH, McArthur K, Rodriguez R, Dawson MA. Pharmacologic Reduction of Mitochondrial Iron Triggers a Noncanonical BAX/BAK-Dependent Cell Death. Cancer Discov 2022; 12:774-791. [PMID: 34862195 PMCID: PMC9390741 DOI: 10.1158/2159-8290.cd-21-0522] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 10/18/2021] [Accepted: 11/29/2021] [Indexed: 01/07/2023]
Abstract
Cancer cell metabolism is increasingly recognized as providing an exciting therapeutic opportunity. However, a drug that directly couples targeting of a metabolic dependency with the induction of cell death in cancer cells has largely remained elusive. Here we report that the drug-like small-molecule ironomycin reduces the mitochondrial iron load, resulting in the potent disruption of mitochondrial metabolism. Ironomycin promotes the recruitment and activation of BAX/BAK, but the resulting mitochondrial outer membrane permeabilization (MOMP) does not lead to potent activation of the apoptotic caspases, nor is the ensuing cell death prevented by inhibiting the previously established pathways of programmed cell death. Consistent with the fact that ironomycin and BH3 mimetics induce MOMP through independent nonredundant pathways, we find that ironomycin exhibits marked in vitro and in vivo synergy with venetoclax and overcomes venetoclax resistance in primary patient samples. SIGNIFICANCE Ironomycin couples targeting of cellular metabolism with cell death by reducing mitochondrial iron, resulting in the alteration of mitochondrial metabolism and the activation of BAX/BAK. Ironomycin induces MOMP through a different mechanism to BH3 mimetics, and consequently combination therapy has marked synergy in cancers such as acute myeloid leukemia. This article is highlighted in the In This Issue feature, p. 587.
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Affiliation(s)
- Sylvain Garciaz
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Aix-Marseille University, INSERM U1068, CNRS, Institut Paoli-Calmettes, Marseille, France
| | - Andrew A. Guirguis
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Sebastian Müller
- Institut Curie, PSL Research University, CNRS UMR3666, INSERM U1143, Chemical Biology of Cancer, Paris, France
| | - Fiona C. Brown
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Yih-Chih Chan
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Ali Motazedian
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Caitlin L. Rowe
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
| | - James A. Kuzich
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Kah Lok Chan
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Kevin Tran
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Lorey Smith
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Laura MacPherson
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Brian Liddicoat
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Enid Y.N. Lam
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Tatiana Cañeque
- Institut Curie, PSL Research University, CNRS UMR3666, INSERM U1143, Chemical Biology of Cancer, Paris, France
| | - Marian L. Burr
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Véronique Litalien
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Giovanna Pomilio
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Mathilde Poplineau
- Aix-Marseille University, INSERM U1068, CNRS, Institut Paoli-Calmettes, Marseille, France
| | - Estelle Duprez
- Aix-Marseille University, INSERM U1068, CNRS, Institut Paoli-Calmettes, Marseille, France
| | - Sarah-Jane Dawson
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia
| | - Georg Ramm
- Monash Ramaciotti Centre for Cryo Electron Microscopy, Monash University, Melbourne, Victoria, Australia
| | - Andrew G. Cox
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Department of Biochemistry and Pharmacology, University of Melbourne, Melbourne, Victoria, Australia
| | - Kristin K. Brown
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Department of Biochemistry and Pharmacology, University of Melbourne, Melbourne, Victoria, Australia
| | - David C.S. Huang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Victoria, Australia
| | - Andrew H. Wei
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Kate McArthur
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
| | - Raphaël Rodriguez
- Institut Curie, PSL Research University, CNRS UMR3666, INSERM U1143, Chemical Biology of Cancer, Paris, France
| | - Mark A. Dawson
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia
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5
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Fennell KA, Vassiliadis D, Lam EYN, Martelotto LG, Balic JJ, Hollizeck S, Weber TS, Semple T, Wang Q, Miles DC, MacPherson L, Chan YC, Guirguis AA, Kats LM, Wong ES, Dawson SJ, Naik SH, Dawson MA. Non-genetic determinants of malignant clonal fitness at single-cell resolution. Nature 2021; 601:125-131. [PMID: 34880496 DOI: 10.1038/s41586-021-04206-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 10/30/2021] [Indexed: 12/14/2022]
Abstract
All cancers emerge after a period of clonal selection and subsequent clonal expansion. Although the evolutionary principles imparted by genetic intratumour heterogeneity are becoming increasingly clear1, little is known about the non-genetic mechanisms that contribute to intratumour heterogeneity and malignant clonal fitness2. Here, using single-cell profiling and lineage tracing (SPLINTR)-an expressed barcoding strategy-we trace isogenic clones in three clinically relevant mouse models of acute myeloid leukaemia. We find that malignant clonal dominance is a cell-intrinsic and heritable property that is facilitated by the repression of antigen presentation and increased expression of the secretory leukocyte peptidase inhibitor gene (Slpi), which we genetically validate as a regulator of acute myeloid leukaemia. Increased transcriptional heterogeneity is a feature that enables clonal fitness in diverse tissues and immune microenvironments and in the context of clonal competition between genetically distinct clones. Similar to haematopoietic stem cells3, leukaemia stem cells (LSCs) display heritable clone-intrinsic properties of high, and low clonal output that contribute to the overall tumour mass. We demonstrate that LSC clonal output dictates sensitivity to chemotherapy and, although high- and low-output clones adapt differently to therapeutic pressure, they coordinately emerge from minimal residual disease with increased expression of the LSC program. Together, these data provide fundamental insights into the non-genetic transcriptional processes that underpin malignant clonal fitness and may inform future therapeutic strategies.
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Affiliation(s)
- Katie A Fennell
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Dane Vassiliadis
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Enid Y N Lam
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Luciano G Martelotto
- The University of Melbourne Centre for Cancer Research, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jesse J Balic
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Sebastian Hollizeck
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Tom S Weber
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.,The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Timothy Semple
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The University of Melbourne Centre for Cancer Research, The University of Melbourne, Melbourne, Victoria, Australia
| | - Qing Wang
- Victor Chang Cardiac Research Institute, Sydney, New South Wales, Australia
| | - Denise C Miles
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.,The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Laura MacPherson
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Yih-Chih Chan
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Andrew A Guirguis
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Lev M Kats
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Emily S Wong
- Victor Chang Cardiac Research Institute, Sydney, New South Wales, Australia.,School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, New South Wales, Australia
| | - Sarah-Jane Dawson
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia.,The University of Melbourne Centre for Cancer Research, The University of Melbourne, Melbourne, Victoria, Australia
| | - Shalin H Naik
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.,The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Mark A Dawson
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia. .,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia. .,The University of Melbourne Centre for Cancer Research, The University of Melbourne, Melbourne, Victoria, Australia.
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6
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Sharma S, Chung J, Uryu S, Rickard A, Nady N, Khan S, Wang Z, Zhang Y, Zhang H, Kung PP, Greenwald E, Maegley K, Bingham P, Lam H, Bozikis YE, Falk H, Allan E, Avery VM, Butler MS, Camerino MA, Carrasco-Pozo C, Charman SA, Davis MJ, Dawson MA, Sarah-Jane D, de Silva M, Dennis ML, Dolezal O, Lagiakos R, Lindeman GJ, MacPherson L, Nuttall S, Peat TS, Ren B, Stupple AE, Surgenor E, Tan CW, Thomas T, Visvader JE, Voss AK, Vaillant F, White KL, Whittle J, Yang Y, Hediyeh-Zadeh S, Stupple PA, Street IP, Monahan BJ, Paul T. Abstract 1130: First-in-class KAT6A/KAT6B inhibitor CTx-648 (PF-9363) demonstrates potent anti-tumor activity in ER+ breast cancer with KAT6A dysregulation. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-1130] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
KAT6A is a lysine histone acetyltransferase (HAT) of the MYST family of HATs. KAT6A, and its paralog KAT6B, have been shown to acetylate histone H3K23Ac and regulate diverse biological processes, including transcription, cell-cycle progression, stem cell maintenance and development. Molecular dysregulation of KAT6A has been observed in several cancers, including amplifications in breast, lung, ovarian cancer along with oncogenic fusions in AML. In breast cancer, KAT6A is amplified as part of the 8p11 amplicon in 10-15% of the patient population, which correlates with a worse clinical outcome in the estrogen receptor+ (ER+) subtype. Here we present identification of a first-in-class potent KAT6A/KAT6B tool inhibitor CTx-648 (PF-9363), that possesses high selectivity versus other MYST family members (KAT7, KAT5, KAT8) and other KATs, demonstrating anti-tumor activity in breast cancer. Using genetic and pharmacological approaches, we have demonstrated several ER+ breast cancer cell lines including KAT6A amplified and over-expressing models, are dependent on KAT6A enzymatic function. Epigenomic profiling studies using bulk and nascent RNA-seq combined with ATAC-seq revealed CTx-648 leads to downregulation of a specific set of genes involved in ESR1 pathway, cell cycle and stem cell pathways. In vivo target validation studies showed strong anti-tumor activity of CTx-648 in several ER+ breast cancer cell line and patient-derived xenograft models, including models harboring endocrine therapy resistance ESR1 mutations, highlighting promise for this novel therapy in ER+ breast cancer population. Based on the strength of the pre-clinical data, a selective KAT6 inhibitor (PF-07248144) is now commencing a Phase 1 clinical study in Advanced or Metastatic Solid Tumors.
Citation Format: Shikhar Sharma, Jay Chung, Sean Uryu, Amanda Rickard, Natalie Nady, Showkhin Khan, Zhenxiong Wang, Yong Zhang, Haikuo Zhang, Pei-Pei Kung, Eric Greenwald, Karen Maegley, Patrick Bingham, Hieu Lam, Ylva E. Bozikis, Hendrik Falk, Elizabeth Allan, Vicky M. Avery, Miriam S. Butler, Michelle A. Camerino, Catalina Carrasco-Pozo, Susan A. Charman, Melissa J. Davis, Mark A. Dawson, Dawson Sarah-Jane, Melanie de Silva, Matthew L. Dennis, Olan Dolezal, Rachel Lagiakos, Geoffrey J. Lindeman, Laura MacPherson, Stewart Nuttall, Thomas S. Peat, Bin Ren, Alexandra E. Stupple, Elliot Surgenor, Chin Wee Tan, Tim Thomas, Jane E. Visvader, Anne K. Voss, Francois Vaillant, Karen L. White, James Whittle, Yuqing Yang, Soroor Hediyeh-Zadeh, Paul A. Stupple, Ian P. Street, Brendon J. Monahan, Thomas Paul. First-in-class KAT6A/KAT6B inhibitor CTx-648 (PF-9363) demonstrates potent anti-tumor activity in ER+ breast cancer with KAT6A dysregulation [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 1130.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Melissa J. Davis
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Mark A. Dawson
- 4The Peter MacCallum Cancer Centre, Melbourne, Australia
| | | | - Melanie de Silva
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Matthew L. Dennis
- 7Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Australia
| | - Olan Dolezal
- 7Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Australia
| | - Rachel Lagiakos
- 7Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Australia
| | | | | | - Stewart Nuttall
- 7Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Australia
| | - Thomas S. Peat
- 7Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Australia
| | - Bin Ren
- 7Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Australia
| | | | - Elliot Surgenor
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Chin Wee Tan
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Tim Thomas
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Jane E. Visvader
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Anne K. Voss
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Francois Vaillant
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | | | - James Whittle
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Yuqing Yang
- 6The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | | | - Paul A. Stupple
- 9Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Australia
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7
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MacPherson L, Anokye J, Yeung MM, Lam EYN, Chan YC, Weng CF, Yeh P, Knezevic K, Butler MS, Hoegl A, Chan KL, Burr ML, Gearing LJ, Willson T, Liu J, Choi J, Yang Y, Bilardi RA, Falk H, Nguyen N, Stupple PA, Peat TS, Zhang M, de Silva M, Carrasco-Pozo C, Avery VM, Khoo PS, Dolezal O, Dennis ML, Nuttall S, Surjadi R, Newman J, Ren B, Leaver DJ, Sun Y, Baell JB, Dovey O, Vassiliou GS, Grebien F, Dawson SJ, Street IP, Monahan BJ, Burns CJ, Choudhary C, Blewitt ME, Voss AK, Thomas T, Dawson MA. HBO1 is required for the maintenance of leukaemia stem cells. Nature 2020; 577:266-270. [PMID: 31827282 DOI: 10.1038/s41586-019-1835-6] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 11/12/2019] [Indexed: 02/07/2023]
Abstract
Acute myeloid leukaemia (AML) is a heterogeneous disease characterized by transcriptional dysregulation that results in a block in differentiation and increased malignant self-renewal. Various epigenetic therapies aimed at reversing these hallmarks of AML have progressed into clinical trials, but most show only modest efficacy owing to an inability to effectively eradicate leukaemia stem cells (LSCs)1. Here, to specifically identify novel dependencies in LSCs, we screened a bespoke library of small hairpin RNAs that target chromatin regulators in a unique ex vivo mouse model of LSCs. We identify the MYST acetyltransferase HBO1 (also known as KAT7 or MYST2) and several known members of the HBO1 protein complex as critical regulators of LSC maintenance. Using CRISPR domain screening and quantitative mass spectrometry, we identified the histone acetyltransferase domain of HBO1 as being essential in the acetylation of histone H3 at K14. H3 acetylated at K14 (H3K14ac) facilitates the processivity of RNA polymerase II to maintain the high expression of key genes (including Hoxa9 and Hoxa10) that help to sustain the functional properties of LSCs. To leverage this dependency therapeutically, we developed a highly potent small-molecule inhibitor of HBO1 and demonstrate its mode of activity as a competitive analogue of acetyl-CoA. Inhibition of HBO1 phenocopied our genetic data and showed efficacy in a broad range of human cell lines and primary AML cells from patients. These biological, structural and chemical insights into a therapeutic target in AML will enable the clinical translation of these findings.
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Affiliation(s)
- Laura MacPherson
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Juliana Anokye
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Miriam M Yeung
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Enid Y N Lam
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Yih-Chih Chan
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Chen-Fang Weng
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Paul Yeh
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Kathy Knezevic
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Miriam S Butler
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Annabelle Hoegl
- Department of Proteomics, The Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kah-Lok Chan
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Marian L Burr
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Linden J Gearing
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Tracy Willson
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Joy Liu
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
| | - Jarny Choi
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Yuqing Yang
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Rebecca A Bilardi
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Hendrik Falk
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
| | - Nghi Nguyen
- Medicinal Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Victoria, Australia
| | - Paul A Stupple
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Medicinal Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Victoria, Australia
| | - Thomas S Peat
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Victoria, Australia
| | - Ming Zhang
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
| | - Melanie de Silva
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
| | - Catalina Carrasco-Pozo
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland, Australia
| | - Vicky M Avery
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland, Australia
| | - Poh Sim Khoo
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Children's Cancer Institute, Kensington, New South Wales, Australia
| | - Olan Dolezal
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Victoria, Australia
| | - Matthew L Dennis
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Victoria, Australia
| | - Stewart Nuttall
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Victoria, Australia
| | - Regina Surjadi
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Victoria, Australia
| | - Janet Newman
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Victoria, Australia
| | - Bin Ren
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Biomedical Program, Parkville, Victoria, Australia
| | - David J Leaver
- Medicinal Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Victoria, Australia
| | - Yuxin Sun
- Medicinal Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Victoria, Australia
| | - Jonathan B Baell
- Medicinal Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Victoria, Australia
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Oliver Dovey
- Wellcome-MRC Cambridge Stem Cell Institute, Department of Haematology, University of Cambridge, Cambridge, UK
| | - George S Vassiliou
- Wellcome-MRC Cambridge Stem Cell Institute, Department of Haematology, University of Cambridge, Cambridge, UK
- Haematological Cancer Genetics, Wellcome Sanger Institute, Cambridge, UK
| | - Florian Grebien
- Institute for Medical Biochemistry, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Sarah-Jane Dawson
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia
| | - Ian P Street
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
| | - Brendon J Monahan
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
- Cancer Therapeutics CRC, Melbourne, Victoria, Australia
| | - Christopher J Burns
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Chunaram Choudhary
- Department of Proteomics, The Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Marnie E Blewitt
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Anne K Voss
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Tim Thomas
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Mark A Dawson
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.
- Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia.
- Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.
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8
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Heffner JL, Watson NL, Serfozo E, Mull KE, MacPherson L, Gasser M, Bricker JB. A Behavioral Activation Mobile Health App for Smokers With Depression: Development and Pilot Evaluation in a Single-Arm Trial. JMIR Form Res 2019; 3:e13728. [PMID: 31774405 PMCID: PMC6913543 DOI: 10.2196/13728] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 02/15/2019] [Revised: 08/21/2019] [Accepted: 09/25/2019] [Indexed: 11/13/2022] Open
Abstract
Background The integration of Behavioral Activation Treatment for Depression (BAT-D) into smoking cessation interventions is a promising approach to address depression as a barrier to quitting. However, this approach has only been tested as a face-to-face intervention, which has low reach. Objective The aims of the study were to develop a BAT-D mobile health app with high potential reach and determine its feasibility, acceptability, and preliminary effects on theory-based behavioral processes of behavioral activation, reduced depressive symptoms, and smoking cessation. Methods Following a user-centered design process consisting of competitive analysis, focus groups, and prototype testing, we conducted a single-arm pilot trial of Actify!, a BAT-D app for depressed smokers. Participants used SmokefreeTXT along with Actify! to provide cessation content that had not yet been built into the app for this initial phase of pilot testing. Participants in the trial were current, daily smokers with mild to moderate depressive symptoms. We examined use outcomes for all enrolled participants and process and cessation outcomes at 6 weeks postenrollment for study completers (16/17, 94% retention). Results Regarding acceptability, average number of log-ins per participant was 16.6 (SD 13.7), and 63% (10/16) reported being satisfied overall with the app. Posttreatment interviews identified some usability challenges (eg, high perceived burden of planning and scheduling values-based activities). There was a significant decrease in depressive symptoms from baseline to follow-up (mean change in Patient Health Questionnaire–9 scores was –4.5, 95% CI –7.7 to –1.3; P=.01). Additionally, carbon monoxide (CO)-confirmed, 7-day point prevalence abstinence (PPA) at 6-week follow-up was 31% (5/16), and the 30-day PPA was 19% (3/16). Conclusions Results demonstrate promising engagement with Actify! and potential for impact on theory-based change processes and cessation outcomes. Preliminary quit rates compare favorably to previous trials of smoking cessation apps for the general population (ie, short-term, self-reported 30-day quit rates in the 8% to 18% range) and a previous trial of face-to-face BAT-D for depressed smokers (ie, CO-confirmed, 7-day PPA rate of 17% at end of treatment).
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Affiliation(s)
- Jaimee L Heffner
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Noreen L Watson
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Edit Serfozo
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Kristin E Mull
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Laura MacPherson
- Greenebaum Comprehensive Cancer Center, Baltimore, MD, United States
| | - Melissa Gasser
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States.,University of Washington, Seattle, WA, United States
| | - Jonathan B Bricker
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States.,University of Washington, Seattle, WA, United States
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9
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Bell CC, Fennell KA, Chan YC, Rambow F, Yeung MM, Vassiliadis D, Lara L, Yeh P, Martelotto LG, Rogiers A, Kremer BE, Barbash O, Mohammad HP, Johanson TM, Burr ML, Dhar A, Karpinich N, Tian L, Tyler DS, MacPherson L, Shi J, Pinnawala N, Yew Fong C, Papenfuss AT, Grimmond SM, Dawson SJ, Allan RS, Kruger RG, Vakoc CR, Goode DL, Naik SH, Gilan O, Lam EYN, Marine JC, Prinjha RK, Dawson MA. Targeting enhancer switching overcomes non-genetic drug resistance in acute myeloid leukaemia. Nat Commun 2019; 10:2723. [PMID: 31222014 PMCID: PMC6586637 DOI: 10.1038/s41467-019-10652-9] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [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: 03/13/2019] [Accepted: 05/21/2019] [Indexed: 12/16/2022] Open
Abstract
Non-genetic drug resistance is increasingly recognised in various cancers. Molecular insights into this process are lacking and it is unknown whether stable non-genetic resistance can be overcome. Using single cell RNA-sequencing of paired drug naïve and resistant AML patient samples and cellular barcoding in a unique mouse model of non-genetic resistance, here we demonstrate that transcriptional plasticity drives stable epigenetic resistance. With a CRISPR-Cas9 screen we identify regulators of enhancer function as important modulators of the resistant cell state. We show that inhibition of Lsd1 (Kdm1a) is able to overcome stable epigenetic resistance by facilitating the binding of the pioneer factor, Pu.1 and cofactor, Irf8, to nucleate new enhancers that regulate the expression of key survival genes. This enhancer switching results in the re-distribution of transcriptional co-activators, including Brd4, and provides the opportunity to disable their activity and overcome epigenetic resistance. Together these findings highlight key principles to help counteract non-genetic drug resistance.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Bone Marrow/pathology
- CRISPR-Cas Systems/genetics
- Cell Line, Tumor
- Drug Resistance, Neoplasm/drug effects
- Epigenesis, Genetic/drug effects
- Female
- Gene Expression Regulation, Leukemic/drug effects
- HEK293 Cells
- Humans
- Kaplan-Meier Estimate
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/mortality
- Leukemia, Myeloid, Acute/pathology
- Mice
- Mice, Inbred C57BL
- Sequence Analysis, RNA
- Single-Cell Analysis
- Trans-Activators/antagonists & inhibitors
- Trans-Activators/genetics
- Trans-Activators/metabolism
- Transcription, Genetic/drug effects
- Treatment Outcome
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Charles C Bell
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Katie A Fennell
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Yih-Chih Chan
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Florian Rambow
- Laboratory for Molecular Cancer Biology, VIB Center for Cancer Biology, KU Leuven, Leuven, Belgium
| | - Miriam M Yeung
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Dane Vassiliadis
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Luis Lara
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Paul Yeh
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
- Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | | | - Aljosja Rogiers
- Laboratory for Molecular Cancer Biology, VIB Center for Cancer Biology, KU Leuven, Leuven, Belgium
- Department of Oncology, KU Leuven, Leuven, Belgium
| | - Brandon E Kremer
- Epigenetics DPU, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | - Olena Barbash
- Epigenetics DPU, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | - Helai P Mohammad
- Epigenetics DPU, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | - Timothy M Johanson
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Marian L Burr
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Arindam Dhar
- Epigenetics DPU, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | | | - Luyi Tian
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Dean S Tyler
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Laura MacPherson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Junwei Shi
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Nathan Pinnawala
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Chun Yew Fong
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Anthony T Papenfuss
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Sean M Grimmond
- Centre for Cancer Research, University of Melbourne, Melbourne, VIC, Australia
| | - Sarah-Jane Dawson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, VIC, Australia
| | - Rhys S Allan
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Ryan G Kruger
- Epigenetics DPU, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | | | - David L Goode
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Shalin H Naik
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- The Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Omer Gilan
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Enid Y N Lam
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Jean-Christophe Marine
- Laboratory for Molecular Cancer Biology, VIB Center for Cancer Biology, KU Leuven, Leuven, Belgium
- Department of Oncology, KU Leuven, Leuven, Belgium
| | - Rab K Prinjha
- Epigenetics DPU, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | - Mark A Dawson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia.
- Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
- Centre for Cancer Research, University of Melbourne, Melbourne, VIC, Australia.
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10
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Abstract
Intratumor heterogeneity driving therapeutic resistance is a major challenge in cancer management. Recently in Nature, Shlush et al. (2017) provide a tour de force of genomics coupled to functional assays to demonstrate that resistance emerges from a pre-existing subpopulation of acute myeloid leukemia (AML) cells with a stem cell transcription program.
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Affiliation(s)
- Laura MacPherson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia
| | - Mark A Dawson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia; Centre for Cancer Research, University of Melbourne, Melbourne, VIC, Australia; Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
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11
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Collado A, Zvolensky M, Lejuez C, MacPherson L. Mental health stigma in depressed Latinos over the course of therapy: Results from a randomized controlled trial. J Clin Psychol 2019; 75:1179-1187. [PMID: 30951609 DOI: 10.1002/jclp.22777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 06/18/2018] [Revised: 12/27/2018] [Accepted: 03/15/2019] [Indexed: 11/07/2022]
Abstract
OBJECTIVE The current study examined the course, correlates, and predictors of mental health stigma among depressed, Spanish-speaking Latinos that were receiving treatment. This population faces significant disparities in mental health treatment and carries high levels of mental health stigma. METHOD The study utilized data generated from a randomized clinical trial (N = 46) that evaluated the efficacy of Behavioral Activation and Supportive Counseling for depression among Latinos. RESULTS Mental health stigma decreased over time; these decreases were more pronounced among individuals who were randomized to Supportive Counseling. Mental health stigma was positively associated with depressive symptoms and therapeutic alliance over time. Mental health stigma was not related to treatment attrition. CONCLUSIONS These preliminary findings indicate that mental health stigma continues to be relevant among individuals who are actively participating in treatment. Receiving mental health treatment may be sufficient to dispel some of the stigmatizing views endorsed by underserved clinical populations.
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Affiliation(s)
- Anahi Collado
- Department of Psychology, Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, Lawrence, Kansas
| | | | - Carl Lejuez
- Department of Psychology, University of Kansas, Lawrence, Kansas
| | - Laura MacPherson
- School of Medicine, Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, Maryland
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12
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Pedrelli P, MacPherson L, Khan AJ, Shapero BG, Fisher LB, Nyer M, Cassano P, Parnarouskis L, Farabaugh A, Fava M, Silveri MM. Sex Differences in the Association between Heavy Drinking and Behavioral Distress Tolerance and Emotional Reactivity Among Non-Depressed College Students. Alcohol Alcohol 2019; 53:674-681. [PMID: 29947730 DOI: 10.1093/alcalc/agy045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 06/02/2018] [Indexed: 11/15/2022] Open
Abstract
Background Heavy episodic drinking (HED) is a common behavior among college students that is associated with severe negative consequences. Negative reinforcement processes have been applied to elucidate mechanisms underlying relationships between consumption of alcohol and the desire to alleviate negative feelings. Distress tolerance (DT) and emotional reactivity are two mechanisms that are consistent with the self-medication model that may contribute to HED. The current study investigated relationships between DT, emotional reactivity, defined as frustration reactivity and irritability reactivity, and HED in a non-depressed college population. Given differential patterns of consumption and motivation for drinking between males and females, sex differences were also examined. Short Summary The study examined two constructs consistent with negative reinforcement processes, behavioral distress tolerance (DT) and emotional reactivity (frustration reactivity and irritability reactivity), to explain heavy episodic drinking (HED) among non-depressed college students. Behavioral DT and frustration reactivity independently predicted HED. Higher HED was associated with higher frustration reactivity and lower behavioral DT in women, but nor in men. Methods One-hundred-ten college students without depressive symptoms completed alcohol use measures and the Paced Auditory Serial Attention Task (PASAT-C) to assess behavioral DT and emotional reactivity. Results DT and frustration reactivity independently predicted HED. The association between DT and HED was moderated by sex such that higher levels of DT predicted higher HED among females, but not among males. Higher frustration reactivity scores were associated with a greater number of HED. Conclusions Results provide supporting evidence that DT and emotional reactivity are distinct factors, and that they predict HED independently. Results underscore the importance of examining sex differences when evaluating the association between HED and negative reinforcement processes in this population.
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Affiliation(s)
- Paola Pedrelli
- Department of Psychiatry, Depression Clinical Research Program, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Laura MacPherson
- Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD, USA
| | - Amanda J Khan
- Emotion and Learning Lab, Department of Psychology, Suffolk University, Boston, MA, USA
| | - Benjamin G Shapero
- Department of Psychiatry, Depression Clinical Research Program, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Lauren B Fisher
- Department of Psychiatry, Depression Clinical Research Program, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Maren Nyer
- Department of Psychiatry, Depression Clinical Research Program, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Paolo Cassano
- Department of Psychiatry, Depression Clinical Research Program, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Lindsey Parnarouskis
- Department of Psychiatry, Depression Clinical Research Program, Massachusetts General Hospital, Boston, MA, USA
| | - Amy Farabaugh
- Department of Psychiatry, Depression Clinical Research Program, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Maurizio Fava
- Department of Psychiatry, Depression Clinical Research Program, Massachusetts General Hospital, Boston, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Marisa M Silveri
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA.,Department of Psychiatry, Neurodevelopmental Laboratory on Addictions and Mental Health, McLean Hospital, Belmont, MA, USA
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13
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Kopetz C, Woerner JI, MacPherson L, Lejuez CW, Nelson CA, Zeanah CH, Fox NA. Early psychosocial deprivation and adolescent risk-taking: The role of motivation and executive control. J Exp Psychol Gen 2019; 148:388-399. [PMID: 30221961 PMCID: PMC7181402 DOI: 10.1037/xge0000486] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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] [Indexed: 11/08/2022]
Abstract
Risk-taking in adolescence has been often associated with early life adversities. However, the impact of such macrolevel factors on risk behavior has been rarely studied in humans. To address these gaps we recruited a sample of young adolescents who were part of a randomized control trial of foster care. Children institutionalized at or soon after birth were randomly assigned either to be removed from institutions and placed into a family or foster care intervention or to remain in institutions receiving care as usual. These children were subsequently followed up through 12 years of age and compared with a sample of children who had never been institutionalized. Using this sample, we examined the impact of early childhood deprivation on risk-taking behavior and explored the role of motivation (i.e., sensation seeking) and executive control (i.e., planning). Early psychosocial deprivation decreased engagement in risk-taking among young adolescents by reducing sensation seeking, a motivation often associated with risk-taking in adolescence. The impact of early psychosocial deprivation on sensation seeking and consequently on engagement in risk-taking was further reduced by its deleterious effects on executive control. These findings challenge the traditional view according to which risk behavior is a maladaptive response to adversities and suggest that it may represent adolescents' attempts to fulfill important motivations. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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14
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Khan AJ, Pedrelli P, Shapero BG, Fisher L, Nyer M, Farabaugh AI, MacPherson L. The Association between Distress Tolerance and Alcohol Related Problems: The Pathway of Drinking to Cope. Subst Use Misuse 2018; 53:2199-2209. [PMID: 29708456 DOI: 10.1080/10826084.2018.1464027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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] [Indexed: 10/17/2022]
Abstract
Binge drinking (BD) and alcohol related problems (ARP) are highly prevalent among college students. However, current models examining ARP suggest drinking quantity only accounts for a portion of the variance, suggesting other variables contribute to ARP. Distress tolerance (DT), or the ability to withstand negative affect, is associated with alcohol misuse and may be an important mechanism related to ARP. However, studies have reported inconsistent findings on this association, which may be due to the use of only global scores to measure DT rather than specific DT components. Furthermore, the mechanisms underlying this association remain unknown. Drinking to cope with negative affect has been associated with both DT and ARP, suggesting it may be a mechanism explaining the relationship between DT and ARP. The current study examined the association between specific proposed DT components (i.e., tolerance, absorption, appraisal, and regulation) and drinking to cope and ARP in 147 college students who BD. A hierarchical linear regression was performed in order to examine which DT component best predicted ARP. Four follow-up mediation models were then tested to examine whether drinking to cope mediated the relationship between each DT component and ARP. Appraisal of DT was the only DT component that significantly predicted ARP, in the model controlling for drinking quantity and sex differences. Drinking to cope mediated the relationship between ARP and tolerance, absorption, and regulation, but not appraisal of DT. Implications for furthering our understanding of DT and treatment of BD as it relates to DT are explored.
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Affiliation(s)
- A J Khan
- a Emotion and Learning Lab, Department of Psychology , Suffolk University , Boston , Massachusetts , USA
| | - P Pedrelli
- b Depression Clinical Research Program, Massachusetts General Hospital , Boston , Massachusetts , USA.,c Department of Psychiatry , Harvard Medical School , Boston , Massachusetts , USA
| | - B G Shapero
- b Depression Clinical Research Program, Massachusetts General Hospital , Boston , Massachusetts , USA.,c Department of Psychiatry , Harvard Medical School , Boston , Massachusetts , USA
| | - L Fisher
- b Depression Clinical Research Program, Massachusetts General Hospital , Boston , Massachusetts , USA.,c Department of Psychiatry , Harvard Medical School , Boston , Massachusetts , USA
| | - M Nyer
- b Depression Clinical Research Program, Massachusetts General Hospital , Boston , Massachusetts , USA.,c Department of Psychiatry , Harvard Medical School , Boston , Massachusetts , USA
| | - A I Farabaugh
- b Depression Clinical Research Program, Massachusetts General Hospital , Boston , Massachusetts , USA.,c Department of Psychiatry , Harvard Medical School , Boston , Massachusetts , USA
| | - L MacPherson
- d Greenebaum Comprehensive Cancer Center, University of Maryland , Baltimore , Maryland , USA
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15
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Loya JM, McCauley KL, Chronis-Tuscano A, Chen SZ, Gad A, MacPherson L, Lejuez CW. An experimental paradigm examining the influence of frustration on risk-taking behavior. Behav Processes 2018; 158:155-162. [PMID: 30366109 DOI: 10.1016/j.beproc.2018.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 10/21/2018] [Accepted: 10/22/2018] [Indexed: 11/19/2022]
Abstract
The present study examined the impact of frustration on risk-taking in college students with low and high ADHD symptomatology (L-ADHD and H-ADHD). Participants completed the Balloon Analogue Risk Task (BART) following induced frustration from a mood manipulation task (experimental session) and following no mood manipulation (control session). A manipulation check revealed a significant three-way interaction where the H-ADHD group reported higher frustration levels compared to the L-ADHD group, particularly in response to the frustration induction in the experimental condition. Primary results revealed that the L-ADHD group exploded significantly fewer balloons in the experimental condition compared to the control condition; there was a nonsignificant difference of balloon explosions across conditions for the H-ADHD group. The study provides initial laboratory-based support for the impact of frustration on the risk behavior of those with low and high levels of ADHD, with potential implications for future studies and ultimately for intervention.
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Affiliation(s)
- Jennifer M Loya
- George Mason University, 4400 University Drive, MSN 3F5, Fairfax, VA 22030, United States; Center for Addictions, Personality, and Emotion Research, 2103 Cole Student Activities Building, College Park, MD 20742, United States.
| | - Katherine L McCauley
- Center for Addictions, Personality, and Emotion Research, 2103 Cole Student Activities Building, College Park, MD 20742, United States; VA Puget Sound, 1660 South Columbian Way, Seattle, WA 98108, United States
| | - Andrea Chronis-Tuscano
- University of Maryland, 1147C Biology/Psychology Building, College Park, MD 20742, United States
| | - Starr Z Chen
- Center for Addictions, Personality, and Emotion Research, 2103 Cole Student Activities Building, College Park, MD 20742, United States
| | - Abanoub Gad
- Center for Addictions, Personality, and Emotion Research, 2103 Cole Student Activities Building, College Park, MD 20742, United States
| | - Laura MacPherson
- Center for Addictions, Personality, and Emotion Research, 2103 Cole Student Activities Building, College Park, MD 20742, United States; Greenebaum Comprehensive Cancer Center, 22 S Greene Street, Baltimore, MD 21201, United States
| | - C W Lejuez
- Center for Addictions, Personality, and Emotion Research, 2103 Cole Student Activities Building, College Park, MD 20742, United States; Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, Strong Hall, Room 250, Lawrence, KS 66045, United States
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16
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Felton JW, Collado A, Havewala M, Shadur JM, MacPherson L, Lejuez CW. Distress Tolerance Interacts With Negative Life Events to Predict Depressive Symptoms Across Adolescence. J Clin Child Adolesc Psychol 2018; 48:633-642. [PMID: 29364742 DOI: 10.1080/15374416.2017.1405354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Adolescence is a vulnerable period for the development of depressive disorders. Recent research has demonstrated the importance of distress tolerance in the onset and maintenance of depression during adulthood; however, little is known about its role in predicting depressive symptoms among adolescents. The current study examines the effect of distress tolerance and co-occurring negative life events on the developmental trajectory of depressive symptoms from middle to late adolescence. Our sample included 117 adolescent boys and girls (44.4% female, 54.6% White). Participants were, on average, 16 years old at baseline (SD = 0.90) and completed self-report inventories of negative life events and depressive symptoms; distress tolerance was assessed using a behavioral measure. Utilizing a latent growth curve approach, we found a significant interaction between distress tolerance and negative life events in predicting increases in depressive symptoms over time. Follow-up analyses suggest that negative life events were associated with greater increases in depressive symptoms over time for adolescents with lower levels of distress tolerance only. The study highlights the moderating role of distress intolerance in the relation between negative life events and depressive symptoms, and underscores the importance of targeting distress tolerance for treating depression among youth.
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Affiliation(s)
| | | | | | | | - Laura MacPherson
- c University of Maryland Marlene and Stuart Greenebaum , Comprehensive Cancer Center
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17
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Banducci AN, Lejuez CW, Dougherty LR, MacPherson L. A Prospective Examination of the Relations Between Emotional Abuse and Anxiety: Moderation by Distress Tolerance. Prev Sci 2017; 18:20-30. [PMID: 27501698 DOI: 10.1007/s11121-016-0691-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 12/18/2022]
Abstract
Anxiety, the most common and impairing psychological problem experienced by youth, is associated with numerous individual and environmental factors. Two such factors include childhood emotional abuse (CEA) and low distress tolerance (DT). The current study aimed to understand how CEA and low DT impacted anxiety symptoms measured annually across 5 years among a community sample of youth. We hypothesized DT would moderate the relationship between CEA and anxiety, such that youth with higher levels of CEA and lower levels of DT would have elevated anxiety over time. Community youth (N = 244) were annually assessed across 5 years using the Revised Child Anxiety and Depression Scale, Childhood Trauma Questionnaire, and Behavioral Indicator of Resiliency to Distress. Higher CEA at baseline was associated with higher anxiety at baseline, higher anxiety at each annual assessment, and with greater overall decreases in anxiety over time. Lower DT was associated with higher anxiety at baseline, but did not predict changes in anxiety over time. Baseline DT significantly moderated the relationship between baseline CEA and anxiety, such that youth with both higher CEA and lower DT had the highest anxiety at each annual assessment. Youth with lower DT and higher CEA scores had the highest level of anxiety symptoms across time.
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Affiliation(s)
- Anne N Banducci
- National Center for PTSD, VA Palo Alto Health Care System, 795 Willow Road (NCPTSD 324), Menlo Park, CA, 94025, USA. .,Department of Psychology, University of Maryland, 1147 Biology Psychology Building, College Park, MD, 20742, USA. .,Center for Addictions, Personality, and Emotion Research, University of Maryland, 2103 Cole Student Activities Building, College Park, MD, 20742, USA.
| | - C W Lejuez
- Department of Psychology, University of Maryland, 1147 Biology Psychology Building, College Park, MD, 20742, USA.,Center for Addictions, Personality, and Emotion Research, University of Maryland, 2103 Cole Student Activities Building, College Park, MD, 20742, USA.,College of Liberal Arts & Sciences, The University of Kansas, Strong Hall, Room 200, 1450 Jayhawk Blvd., Lawrence, KS, 66049, USA
| | - Lea R Dougherty
- Department of Psychology, University of Maryland, 1147 Biology Psychology Building, College Park, MD, 20742, USA
| | - Laura MacPherson
- Department of Psychology, University of Maryland, 1147 Biology Psychology Building, College Park, MD, 20742, USA.,Center for Addictions, Personality, and Emotion Research, University of Maryland, 2103 Cole Student Activities Building, College Park, MD, 20742, USA
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18
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Felton JW, Banducci AN, Shadur JM, Stadnik R, MacPherson L, Lejuez CW. The developmental trajectory of perceived stress mediates the relations between distress tolerance and internalizing symptoms among youth. Dev Psychopathol 2017; 29:1391-1401. [PMID: 28318473 PMCID: PMC6360527 DOI: 10.1017/s0954579417000335] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The current study examines the relation between distress tolerance, perceived stress, and internalizing symptoms across adolescence. Participants included 331 youth, ages 10 to 14 at the first wave of the study, assessed annually over 5 years. A latent growth curve approach was used to test three research questions, including whether perceived stress would increase across adolescence, whether distress tolerance (as measured by a behavioral task) would predict changes in perceived stress, and whether changes in perceived stress would mediate the relation between distress tolerance and internalizing symptoms. Results suggest that, consistent with previous findings, rates of perceived stress do increase across adolescence. Further, findings indicate that distress intolerance at baseline predicted increases in perceived stress, which in turn drove increases in internalizing symptoms. These findings point to the critical role of distress tolerance in bringing about changes in depression and anxiety symptoms and suggest support for utilizing a negative reinforcement framework to understand the emergence of internalizing symptomology.
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19
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Ruppert JLW, Docherty C, Neufeld K, Hamilton K, MacPherson L, Poesch MS. Native freshwater species get out of the way: Prussian carp ( Carassius gibelio) impacts both fish and benthic invertebrate communities in North America. R Soc Open Sci 2017; 4:170400. [PMID: 29134062 PMCID: PMC5666245 DOI: 10.1098/rsos.170400] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 08/31/2017] [Indexed: 06/07/2023]
Abstract
Prussian carp (Carassius gibelio) are one of the most noxious non-native species in Eurasia. Recently, Prussian carp, a non-native freshwater fish species, were genetically confirmed in Alberta, Canada and have been rapidly expanding their range in North America since establishment. Given their rapid range expansion, there is an increasing need to determine how Prussian carp may impact native species. We assessed the severity of the Prussian carp invasion by (i) determining their impact on fish communities, (ii) assessing their impact on benthic invertebrate communities, (iii) evaluating if Prussian carp alter abiotic conditions, and (iv) identifying where we find higher abundances of Prussian carp. When Prussian carp were established, we found significant changes to the fish community. Correspondingly, the degree of impact to benthic invertebrate communities was related to the stage of invasion (none, early or recent), where changes in fish communities were significantly concordant with changes in benthic invertebrate communities. Finally, we found that higher abundances of Prussian carp were significantly associated with lower abundances of a majority of native fish species. Altogether, using three lines of evidence, we determine that Prussian carp can have wide-ranging impacts on freshwater ecosystems in North America, pressing the need for management intervention.
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Affiliation(s)
- Jonathan L. W. Ruppert
- Department of Renewable Resources, University of Alberta, 751 General Services Building, Edmonton, Alberta, CanadaT6G 2H1
| | - Cassandra Docherty
- Department of Renewable Resources, University of Alberta, 751 General Services Building, Edmonton, Alberta, CanadaT6G 2H1
| | - Kenton Neufeld
- Department of Renewable Resources, University of Alberta, 751 General Services Building, Edmonton, Alberta, CanadaT6G 2H1
| | - Kyle Hamilton
- Department of Renewable Resources, University of Alberta, 751 General Services Building, Edmonton, Alberta, CanadaT6G 2H1
| | - Laura MacPherson
- Alberta Environment and Parks, Fish and Wildlife Division, 6909-116 Street, Edmonton, Alberta, CanadaT6H 4P2
| | - Mark S. Poesch
- Department of Renewable Resources, University of Alberta, 751 General Services Building, Edmonton, Alberta, CanadaT6G 2H1
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20
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Shadur JM, Ninnemann AL, Lim A, Lejuez CW, MacPherson L. The prospective relationship between distress tolerance and cigarette smoking expectancies in adolescence. Psychol Addict Behav 2017; 31:625-635. [PMID: 28714727 DOI: 10.1037/adb0000300] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The current study examined the prospective relationship between distress tolerance (DT) and positive and negative cigarette smoking outcome expectancies, which are reliable predictors of the onset and maintenance of smoking behaviors. Data from a longitudinal study (N = 204) examining risk behaviors in adolescence were used to assess whether DT predicts individual differences in rate of change in smoking outcome expectancies over 4 annual assessment waves through adolescence. Adolescents (mean age at first wave: 13.03 years; SD = 0.88 years) completed a behavioral task assessing DT at baseline and a self-report measure of adolescent smoking expectancies annually across 4 years. Latent growth curve models were estimated to test our hypotheses. Results showed that DT at baseline did not significantly predict initial levels of negative affect reduction (NAR) expectancies, but NAR expectancies increased more quickly over time for adolescents with lower DT. Moreover, as hypothesized, DT did not prospectively predict significant changes in smoking expectancies outside of the domain of NAR, including negative physical feelings, negative social impression, and boredom reduction expectancies. These findings suggest that DT is a useful indicator of adolescent expectancies about the consequences of cigarette smoking, particularly those focused on reducing negative affect. Thus, DT may be an important target for preventing smoking initiation among adolescents via this putative mechanism. Theoretical and clinical implications are discussed within the context of observed effect sizes. (PsycINFO Database Record
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Affiliation(s)
- Julia M Shadur
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park
| | | | - Aaron Lim
- Department of Psychology, University of California, Los Angeles
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21
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Tyler DS, Vappiani J, Cañeque T, Lam EYN, Ward A, Gilan O, Chan YC, Hienzsch A, Rutkowska A, Werner T, Wagner AJ, Lugo D, Gregory R, Ramirez Molina C, Garton N, Wellaway CR, Jackson S, MacPherson L, Figueiredo M, Stolzenburg S, Bell CC, House C, Dawson SJ, Hawkins ED, Drewes G, Prinjha RK, Rodriguez R, Grandi P, Dawson MA. Click chemistry enables preclinical evaluation of targeted epigenetic therapies. Science 2017; 356:1397-1401. [PMID: 28619718 DOI: 10.1126/science.aal2066] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 06/01/2017] [Indexed: 12/12/2022]
Abstract
The success of new therapies hinges on our ability to understand their molecular and cellular mechanisms of action. We modified BET bromodomain inhibitors, an epigenetic-based therapy, to create functionally conserved compounds that are amenable to click chemistry and can be used as molecular probes in vitro and in vivo. We used click proteomics and click sequencing to explore the gene regulatory function of BRD4 (bromodomain containing protein 4) and the transcriptional changes induced by BET inhibitors. In our studies of mouse models of acute leukemia, we used high-resolution microscopy and flow cytometry to highlight the heterogeneity of drug activity within tumor cells located in different tissue compartments. We also demonstrate the differential distribution and effects of BET inhibitors in normal and malignant cells in vivo. This study provides a potential framework for the preclinical assessment of a wide range of drugs.
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Affiliation(s)
- Dean S Tyler
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Johanna Vappiani
- Cellzome GmbH, GlaxoSmithKline, Meyerhofstrasse 1, Heidelberg, Germany
| | - Tatiana Cañeque
- Chemical Cell Biology Group, Institut Curie, Paris Sciences et Lettres Research University, 26 Rue d'Ulm, 75248 Paris Cedex 05, France.,CNRS UMR3666, 75005 Paris, France.,INSERM U1143, 75005 Paris, France
| | - Enid Y N Lam
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Aoife Ward
- Cellzome GmbH, GlaxoSmithKline, Meyerhofstrasse 1, Heidelberg, Germany
| | - Omer Gilan
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Yih-Chih Chan
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Antje Hienzsch
- Chemical Cell Biology Group, Institut Curie, Paris Sciences et Lettres Research University, 26 Rue d'Ulm, 75248 Paris Cedex 05, France.,CNRS UMR3666, 75005 Paris, France.,INSERM U1143, 75005 Paris, France
| | - Anna Rutkowska
- Cellzome GmbH, GlaxoSmithKline, Meyerhofstrasse 1, Heidelberg, Germany
| | - Thilo Werner
- Cellzome GmbH, GlaxoSmithKline, Meyerhofstrasse 1, Heidelberg, Germany
| | - Anne J Wagner
- Cellzome GmbH, GlaxoSmithKline, Meyerhofstrasse 1, Heidelberg, Germany
| | - Dave Lugo
- Epigenetics Discovery Performance Unit, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK
| | - Richard Gregory
- Epigenetics Discovery Performance Unit, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK
| | - Cesar Ramirez Molina
- Epigenetics Discovery Performance Unit, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK
| | - Neil Garton
- Epigenetics Discovery Performance Unit, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK
| | - Christopher R Wellaway
- Epigenetics Discovery Performance Unit, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK
| | - Susan Jackson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Laura MacPherson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Margarida Figueiredo
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Sabine Stolzenburg
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Charles C Bell
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Colin House
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Sarah-Jane Dawson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia
| | - Edwin D Hawkins
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Gerard Drewes
- Cellzome GmbH, GlaxoSmithKline, Meyerhofstrasse 1, Heidelberg, Germany
| | - Rab K Prinjha
- Epigenetics Discovery Performance Unit, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK
| | - Raphaël Rodriguez
- Chemical Cell Biology Group, Institut Curie, Paris Sciences et Lettres Research University, 26 Rue d'Ulm, 75248 Paris Cedex 05, France.,CNRS UMR3666, 75005 Paris, France.,INSERM U1143, 75005 Paris, France
| | - Paola Grandi
- Cellzome GmbH, GlaxoSmithKline, Meyerhofstrasse 1, Heidelberg, Germany.
| | - Mark A Dawson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia. .,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia.,Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
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22
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Kopetz C, MacPherson L, Mitchell AD, Houston-Ludlam AN, Wiers RW. A novel training approach to activate alternative behaviors for smoking in depressed smokers. Exp Clin Psychopharmacol 2017; 25:50-60. [PMID: 28150972 DOI: 10.1037/pha0000108] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 11/08/2022]
Abstract
The current research developed and tested a novel training strategy to alter the implicit associations between alternative behaviors to smoking and negative affect, and explored its effects on depressive symptoms and on smoking behavior as part of a quit attempt. Using a joystick, participants identified as smokers with depressive symptoms were trained to approach alternative behaviors to smoking in the context of negative affect. Specifically, in the experimental condition, participants were trained to avoid smoking-related targets and to approach alternative activities. In the control condition, participants pushed and pulled an equal amount of smoking and alternative activity-related targets. Compared with the participants in the control condition, those in the experimental condition showed an increase in the accessibility of the alternative activity relative to smoking and a decrease in depressive symptoms. Smoking outcomes did not differ significantly across the 2 conditions. Taken together these results indicate that the value of alternative behaviors to smoking can be modified in the lab without participants' conscious intentions with implications for depressive symptomatology. Future research is required to explore the impact of such training on smoking outcomes. (PsycINFO Database Record
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Affiliation(s)
| | | | - Avery D Mitchell
- Department of Psychology, University of North Carolina at Chapel Hill
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23
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Borges AM, Dahne J, Lim AC, MacPherson L. Negative affect mediates the relation between trait urgency and behavioral distress tolerance. ACTA ACUST UNITED AC 2017; 17:707-716. [PMID: 28080084 DOI: 10.1037/emo0000267] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Distress tolerance is associated with a range of psychopathology and risk-taking behavior. Current research suggests that the behavioral ability to persist at goal-directed behavior when distressed may be malleable. However, little is known about the contributing factors that underlie individual differences in distress tolerance. Trait urgency, or the tendency to act impulsively in the context of acute changes in affect, may predict distress tolerance because the prepotent response to avoid or remove an aversive state may undermine persistence. To date, most research has examined the role of negative urgency, a valenced subfactor of urgency, in relation to distress tolerance. However, the broad trait of urgency may be associated with a greater change in affect that precedes the inability to tolerate distress. The current study examined whether greater changes in negative affect was indeed a mediator in the relationship between trait urgency and behavioral distress tolerance. The effects of both positive and negative urgency on affect change were examined to investigate the potential contribution of the broader urgency trait. The results suggest that a greater change in negative affect over the course of a stressor mediated the association between both subfactors of urgency and distress tolerance. These findings suggest that trait urgency, regardless of valence, may be associated with experiencing greater changes in affect that ultimately undermine the ability to tolerate distress. These findings also highlight important components of distress tolerance that could inform behavioral interventions. (PsycINFO Database Record
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Affiliation(s)
| | - Jennifer Dahne
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina
| | - Aaron C Lim
- Department of Psychology, University of California, Los Angeles
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24
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Dahne J, Murphy JG, MacPherson L. Depressive Symptoms and Cigarette Demand as a Function of Induced Stress. Nicotine Tob Res 2017; 19:49-58. [PMID: 27245238 PMCID: PMC5157711 DOI: 10.1093/ntr/ntw145] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 08/14/2015] [Accepted: 05/19/2016] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Depressed smokers may disproportionately value cigarettes as compared to other reinforcers in the context of increases in negative affect (NA). Thus, cigarette demand may be an important construct for understanding the relationship between depression, NA change, and tobacco use. The aim of the current study was to examine the interaction between depressive symptoms and change in NA as a function of induced mood as a predictor of cigarette demand. METHODS Participants included 73 young adult daily smokers (41.70% female, 73.60% White, age M (SD) = 19.70 (1.15)) who attended two experimental sessions: one stress and one neutral. During each session, participants completed ratings of depressive symptoms, NA, and cigarette demand. RESULTS We examined the predictive utility of depressive symptoms, change in NA as a result of a stressor, and the interaction between depressive symptoms and NA change on demand indices. Separate models were constructed by session. Results indicated significant interactive effects between depressive symptoms and change in NA for predicting intensity, breakpoint, and P max during the stress session. Specifically, change in NA moderated the relationship between depression and demand indices such that among individuals high in NA change, depressive symptoms were positively related to P max and breakpoint, whereas among individuals low in NA change, depressive symptoms were positively related to intensity. CONCLUSIONS When exposed to stress, cigarettes may become more valuable for individuals with depressive symptoms. IMPLICATIONS This study contributes to the literature attempting to understand the complex relationships between depression, stress-related changes in NA, and tobacco use. This study suggests that one mechanism that may be important to the relationship between depression and tobacco use is cigarette demand. Specifically, for individuals with elevated depressive symptoms, certain aspects of cigarette demand may be higher (intensity, breakpoint, and P max) when exposed to stress, which may contribute to tobacco use being maintained over time.
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Affiliation(s)
- Jennifer Dahne
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, College Park, MD;
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC
| | - James G Murphy
- Department of Psychology, University of Memphis, Memphis, TN
| | - Laura MacPherson
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, College Park, MD
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25
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Dahne J, Lim AC, Borges AM, MacPherson L. Risk-Taking Propensity in Older Adolescents: Internalizing Symptoms, Gender, and Negative Reinforcement. Psychiatry 2017; 80:252-264. [PMID: 29087251 PMCID: PMC5749236 DOI: 10.1080/00332747.2016.1230982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
OBJECTIVE Engagement in risk behaviors, including substance use, risky sex, and violence, tends to increase throughout adolescence into young adulthood. One motivational process that may underlie risk behaviors during adolescence is negative reinforcement. Moreover, gender and internalizing symptoms (e.g., depression and anxiety) may both convey risk for negative reinforcement-based risk taking. Along these lines, the aims of the current study were to (a) examine gender differences in negative reinforcement-based risk-taking propensity and (b) examine internalizing symptoms as a moderator of the relationship between gender and negative reinforcement-based risk-taking propensity. METHOD Participants included 103 youth between the ages of 18 and 21 (50.49% female, age M(SD) = 19.41(1.06)) who were recruited from a large Mid-Atlantic university between September 2013 and November 2014. Participants completed self-report assessments of internalizing symptomatology and a computerized behavioral analog assessment of negative reinforcement-based risk-taking propensity. RESULTS Results indicated that, overall, female older adolescents were riskier under conditions of negative reinforcement than male older adolescents. In addition, internalizing symptoms significantly moderated the relationship between gender and negative reinforcement-based risk-taking propensity such that the relationship between gender and negative reinforcement-based risk-taking propensity was nonsignificant at high levels of internalizing symptoms, and female gender was significantly positively predictive of heightened negative reinforcement-based risk-taking propensity at low levels of internalizing symptoms. CONCLUSIONS Thus, although female youth overall were riskier, the predictive utility of gender for negative reinforcement-based risk taking may be most relevant at low levels of internalizing symptoms. Results are discussed in terms of implications for future prevention and intervention.
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Affiliation(s)
| | | | - Allison M. Borges
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, College Park, Maryland
| | - Laura MacPherson
- Marlene and Stuart Greenbaum Comprehensive Cancer Center, University of Maryland Medical Center, Baltimore, Maryland
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26
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Pedrelli P, Collado A, Shapero BG, Brill C, MacPherson L. Different pathways explain alcohol-related problems in female and male college students. J Am Coll Health 2016; 64:535-44. [PMID: 27219280 PMCID: PMC5021447 DOI: 10.1080/07448481.2016.1191016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVES Comprehensive models elucidating the intricate associations of depressive symptoms, coping motives, alcohol use, alcohol-related problems (ARPs), and gender among young adults have been scarcely examined. This study investigated relationships among these variables and the effect of gender on these pathways. METHODS College students (N = 163; 49.7% female) completed self-report measures on alcohol consumption, depressive symptoms, coping motives, and ARPs. RESULTS Structural equation modeling showed that the association between depressive symptoms and ARPs was mediated by coping motives in both females and males. However, frequency of heavy alcohol use mediated the association between depressive symptoms and ARPs in females but not in males. CONCLUSIONS Different models explain the association between depressive symptoms and ARPs in male and female college students. Prevention programs aimed at reducing ARPs should focus on increasing alcohol screening among students with depressive symptoms, teaching coping skills, and emphasizing moderation in alcohol consumption.
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Affiliation(s)
- Paola Pedrelli
- a Depression Clinical Research Program , Massachusetts General Hospital , Boston , Massachusetts , USA
| | - Anahi Collado
- b Department of Psychology , University of Maryland , College Park , Maryland , USA
| | - Benjamin G Shapero
- a Depression Clinical Research Program , Massachusetts General Hospital , Boston , Massachusetts , USA
| | - Charlotte Brill
- c Department of Psychology , University of Seattle , Seattle , Washington , USA
| | - Laura MacPherson
- b Department of Psychology , University of Maryland , College Park , Maryland , USA
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27
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MacPherson L, Collado A, Lejuez CW, Brown RA, Tull MT. Behavioral Activation Treatment for Smoking (BATS) in smokers with depressive symptomatology. Advances in Dual Diagnosis 2016. [DOI: 10.1108/add-02-2016-0005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
Cigarette smoking remains the primary preventable cause of mortality and morbidity globally. The overarching goal of the paper is to disseminate the Behavioral Activation Treatment for Smoking (BATS), which integrates behavioral activation principles with standard treatment guidelines to assist individuals in achieving short- and long-term smoking cessation. Through a series of sequential steps, BATS guides individuals who wish to quit smoking to increase their engagement in healthy, pleasurable, and value-consistent activities.
Design/methodology/approach
The document provides the BATS rationale and contains an abridged manual for use by clinicians and/or researchers in the context of clinical trials. Findings: BATS is accruing empirical evidence that suggests its ability to promote successful smoking cessation outcomes while decreasing any associated depressive symptoms.
Findings
BATS is accruing empirical evidence that suggests its ability to promote successful smoking cessation outcomes while decreasing any associated depressive symptoms.
Practical implications
A description of key components, forms, and strategies to address common treatment barriers are included.
Originality/value
BATS’s strong roots in learning theories and its idiographic nature allow for the intervention to be implemented flexibly across a wide range of settings and smoking populations. The treatment may also be combined seamlessly with pharmacotherapies. BATS targets both cigarette smoking and depressive symptoms, which constitute a significant barrier to cessation, through a common pathway: increasing rewarding activities. The treatment offers a parsimonious complement to standard smoking cessation treatments.
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28
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Gilan O, Lam EYN, Becher I, Lugo D, Cannizzaro E, Joberty G, Ward A, Wiese M, Fong CY, Ftouni S, Tyler D, Stanley K, MacPherson L, Weng CF, Chan YC, Ghisi M, Smil D, Carpenter C, Brown P, Garton N, Blewitt ME, Bannister AJ, Kouzarides T, Huntly BJP, Johnstone RW, Drewes G, Dawson SJ, Arrowsmith CH, Grandi P, Prinjha RK, Dawson MA. Functional interdependence of BRD4 and DOT1L in MLL leukemia. Nat Struct Mol Biol 2016; 23:673-81. [PMID: 27294782 DOI: 10.1038/nsmb.3249] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/19/2016] [Indexed: 02/06/2023]
Abstract
Targeted therapies against disruptor of telomeric silencing 1-like (DOT1L) and bromodomain-containing protein 4 (BRD4) are currently being evaluated in clinical trials. However, the mechanisms by which BRD4 and DOT1L regulate leukemogenic transcription programs remain unclear. Using quantitative proteomics, chemoproteomics and biochemical fractionation, we found that native BRD4 and DOT1L exist in separate protein complexes. Genetic disruption or small-molecule inhibition of BRD4 and DOT1L showed marked synergistic activity against MLL leukemia cell lines, primary human leukemia cells and mouse leukemia models. Mechanistically, we found a previously unrecognized functional collaboration between DOT1L and BRD4 that is especially important at highly transcribed genes in proximity to superenhancers. DOT1L, via dimethylated histone H3 K79, facilitates histone H4 acetylation, which in turn regulates the binding of BRD4 to chromatin. These data provide new insights into the regulation of transcription and specify a molecular framework for therapeutic intervention in this disease with poor prognosis.
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MESH Headings
- Acetylation
- Animals
- B-Lymphocytes/metabolism
- B-Lymphocytes/pathology
- Cell Cycle Proteins
- Cell Proliferation
- Chromatin/chemistry
- Chromatin/metabolism
- Clinical Trials as Topic
- Disease Models, Animal
- Female
- Gene Expression Regulation, Leukemic
- Histone-Lysine N-Methyltransferase
- Histones/genetics
- Histones/metabolism
- Humans
- Leukemia, Biphenotypic, Acute/genetics
- Leukemia, Biphenotypic, Acute/metabolism
- Leukemia, Biphenotypic, Acute/pathology
- Male
- Methyltransferases/antagonists & inhibitors
- Methyltransferases/genetics
- Methyltransferases/metabolism
- Mice
- Mice, Inbred C57BL
- Nuclear Proteins/antagonists & inhibitors
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Primary Cell Culture
- Protein Binding
- Proteomics/methods
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Signal Transduction
- T-Lymphocytes/metabolism
- T-Lymphocytes/pathology
- Transcription Factors/antagonists & inhibitors
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Transcription, Genetic
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Affiliation(s)
- Omer Gilan
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Enid Y N Lam
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Isabelle Becher
- Cellzome GmbH, Molecular Discovery Research, GlaxoSmithKline, Heidelberg, Germany
| | - Dave Lugo
- Epinova DPU, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK
| | | | - Gerard Joberty
- Cellzome GmbH, Molecular Discovery Research, GlaxoSmithKline, Heidelberg, Germany
| | - Aoife Ward
- Cellzome GmbH, Molecular Discovery Research, GlaxoSmithKline, Heidelberg, Germany
| | - Meike Wiese
- The Gurdon Institute, University of Cambridge, Cambridge, UK
| | - Chun Yew Fong
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Sarah Ftouni
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Dean Tyler
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Kym Stanley
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Laura MacPherson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Chen-Fang Weng
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Yih-Chih Chan
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Margherita Ghisi
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - David Smil
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario, Canada
| | | | - Peter Brown
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario, Canada
| | - Neil Garton
- Epinova DPU, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK
| | - Marnie E Blewitt
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | | | - Tony Kouzarides
- The Gurdon Institute, University of Cambridge, Cambridge, UK
| | - Brian J P Huntly
- Department of Haematology, Cambridge Institute for Medical Research, Cambridge, UK
- Cambridge Stem Cell Institute, Cambridge, UK
| | - Ricky W Johnstone
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Gerard Drewes
- Cellzome GmbH, Molecular Discovery Research, GlaxoSmithKline, Heidelberg, Germany
| | - Sarah-Jane Dawson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia
| | - Cheryl H Arrowsmith
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario, Canada
- Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Paola Grandi
- Cellzome GmbH, Molecular Discovery Research, GlaxoSmithKline, Heidelberg, Germany
| | - Rab K Prinjha
- Epinova DPU, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Stevenage, UK
| | - Mark A Dawson
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
- Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia
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Abstract
Environmental sources of psychosocial support have been found to modulate or protect against the development of psychopathology and risk behavior among adolescents. Capturing sources of environmental support across multiple developmental contexts requires the availability of well-validated, concise assessments-of which there are few in the existing literature. In order to address this need, the current study explored the factor structure, concurrent and convergent validity of the Environmental Supports Scale (ESS; Genetic, Social, and General Psychology Monographs, 117; 395-417, 1991) with a community sample of adolescents. An unconstrained exploratory factor analysis revealed a separate factor for home, school, and neighborhood settings. Internal consistency and test-retest reliability were evaluated for each factor. Concurrent and predictive validity analyses revealed that the ESS was associated in the expected directions across a range of constructs relevant to adolescent development including internalizing symptoms, well-being, external influences, and engagement in risk behavior. Convergent validity for the neighborhood context was established with an assessment of neighborhood environmental adversity. A brief assessment of perceived environmental support across key developmental contexts provides an important tool for research on resilience processes during adolescence and may help illuminate key protective factors and inform intervention and prevention efforts.
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Affiliation(s)
- Cristina M Risco
- Center for Addictions, Personality, and Emotion Research, University of Maryland, 2103 Cole Student Activities Building, College Park, MD, 20742-4411, USA.
| | - Anahi D Collado
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, USA
| | - Elizabeth K Reynolds
- Division of Child and Adolescent Psychiatry, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Carl W Lejuez
- Center for Addictions, Personality, and Emotion Research, University of Maryland, 2103 Cole Student Activities Building, College Park, MD, 20742-4411, USA
| | - Laura MacPherson
- Center for Addictions, Personality, and Emotion Research, University of Maryland, 2103 Cole Student Activities Building, College Park, MD, 20742-4411, USA.
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30
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Collado A, Lim AC, MacPherson L. A systematic review of depression psychotherapies among Latinos. Clin Psychol Rev 2016; 45:193-209. [PMID: 27113679 DOI: 10.1016/j.cpr.2016.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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: 09/28/2015] [Revised: 04/01/2016] [Accepted: 04/05/2016] [Indexed: 01/28/2023]
Abstract
For decades, the literature has reported persistent treatment disparities among depressed Latinos. Fortunately, treatment development and evaluation in this underserved population has expanded in recent years. This review summarizes outcomes across 36 unique depression treatment studies that reported treatment outcomes for Latinos. Results indicated that there was significant variability in the quality of RCT and type/number of cultural adaptations. The review suggested that there might a relation between cultural adaptations with treatment outcomes; future studies are warranted to confirm this association. Cognitive Behavioral Therapy was the most evaluated treatment (CBT; n=18, 50% of all evaluations), followed by Problem Solving Therapy (PST; n=4), Interpersonal Therapy (IPT; n=4), and Behavioral Activation (BA; n=3). CBT seems to fare better when compared to usual care, but not when compared to a contact-time matched control condition or active treatment. There is growing support for PST and IPT as efficacious depression interventions among Latinos. IPT shows particularly positive results for perinatal depression. BA warrants additional examination in RCT. Although scarce, telephone and in-home counseling have shown efficacy in reducing depression and increasing retention. Promotora-assisted trials require formal assessment. Limitations and future directions of the depression psychotherapy research among Latinos are discussed.
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Affiliation(s)
- Anahí Collado
- Emory University, Department of Psychiatry and Behavioral Sciences, 12 Executive Park Drive NE, suite 300, Atlanta, GA 30329, United States.
| | - Aaron C Lim
- University of California - Los Angeles, Department of Psychology, 1285 Franz Hall, Box 951563, Los Angeles, CA 90095, United States.
| | - Laura MacPherson
- University of Maryland - College Park, Department of Psychology, 2103 Cole Activities Fieldhouse, College Park, MD 20742, United States.
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Collado A, Calderón M, MacPherson L, Lejuez C. The efficacy of behavioral activation treatment among depressed Spanish-speaking Latinos. J Consult Clin Psychol 2016; 84:651-7. [PMID: 27054826 DOI: 10.1037/ccp0000103] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Major depressive disorder (MDD) is highly prevalent among U.S. Spanish-speaking Latinos, but the lack of empirically supported treatments precludes this population's access to quality mental health care. METHOD Following the promising results of an open-label trial of the Behavioral Activation Treatment for Depression (BATD) among Spanish-speaking Latinos, the authors conducted a randomized control trial (RCT; N = 46) that compared BATD to supportive counseling. Study outcomes included depression, BATD proposed mechanisms of change, and nonspecific psychotherapy factors. RESULTS Relative to supportive counseling, BATD led to greater decreases in depressive symptoms over time (p = .04) and greater MDD remission at the end of treatment (p = .01). Activity level (p = .01) and environmental reward (p = .05) showed greater increases over time among those who received BATD compared to supportive counseling. Treatment adherence, therapeutic alliance, and treatment satisfaction did not differ between the groups over time (ps > 0.17). The 1-month follow-up suggested sustained clinical gains across therapies. CONCLUSIONS The current study adds to a growing treatment literature and provides support that BATD is efficacious in reducing depression and increasing activity level and environmental reward in the largest, yet historically underserved U.S. ethnic minority population. This trial sets the stage for a larger RCT that evaluates the transportability and generalizability of BATD in an effectiveness trial. (PsycINFO Database Record
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Affiliation(s)
| | - Marilyn Calderón
- Latin American Youth Center/Maryland Multicultural Youth Centers
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McCauley KL, Shadur JM, Hoffman EM, MacPherson L, Lejuez CW. Adolescent Callous-Unemotional Traits and Parental Knowledge as Predictors of Unprotected Sex Among Youth. Behav Modif 2015; 40:70-96. [PMID: 26584610 DOI: 10.1177/0145445515615355] [Citation(s) in RCA: 12] [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: 11/16/2022]
Abstract
Risky sexual behavior among adolescents is common and results in many negative consequences. The present study investigated longitudinal predictors of adolescents' likelihood of engaging in unprotected sexual intercourse. Parental knowledge, or the extent to which parents know about their children's activities, whereabouts, and friendships, is a robust predictor of youth risk behavior, including risky sexual behavior. However, parenting practices are typically less potent as predictors of subsequent behavior among youth with high levels of callous-unemotional (CU) traits. We conducted three logistic regression models, each of which examined parental knowledge in a different way (through child report, parent report, and a discrepancy score), allowing us to examine parental knowledge, CU traits, and their interaction as predictors of adolescents' subsequent engagement in sex without a condom. Results indicated that adolescents who perceived their parents to possess greater knowledge were less likely to engage in unprotected sex. Higher parent report of parental knowledge was also related to decreased likelihood of engaging in unprotected sex, but only for adolescents with high levels of CU traits. In addition, greater discrepancy between parent and adolescent reports of parental knowledge was related to increased likelihood of engaging in unprotected sex, but only for adolescents with low levels of CU traits. Results highlight the importance of considering both parent and adolescent perceptions of parental knowledge and have important implications for prevention and intervention efforts.
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Affiliation(s)
| | | | | | | | - C W Lejuez
- University of Maryland, College Park, USA
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Abstract
OBJECTIVE The current study examined whether social phobia (SP) symptoms in early adolescence prospectively predicted alcohol use through middle adolescence in a community sample of youth. METHOD Data from an ongoing longitudinal study (N = 277) of mechanisms of HIV-related risk behaviors in youth were used to assess the extent to which SP symptoms in early adolescence (mean [SD] age = 11.00 years [0.81]) would predict alcohol use across five annual assessment waves. Adolescents completed measures of SP symptoms, depressive symptoms, and alcohol use at each wave. RESULTS Higher SP symptoms at baseline predicted higher average odds of alcohol consumption during subsequent waves but did not significantly predict an increase in the odds of alcohol use as a function of time. Within a lagged model, SP symptoms measured at a prior assessment point (1 year earlier) predicted greater odds of drinking alcohol at the following assessment point. Importantly, alcohol use did not significantly predict SP symptoms over time. These results suggest that early SP symptoms are an important risk factor for increased odds of subsequent alcohol use. CONCLUSIONS The present findings highlight that elevated SP symptoms place adolescents at risk for early alcohol use. Early interventions targeting SP symptoms may be crucial for the prevention of problematic alcohol use in early to mid-adolescence. Implications for prevention and treatment approaches are discussed.
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Affiliation(s)
- Jennifer Dahne
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, College Park, Maryland
| | - Anne N Banducci
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, College Park, Maryland
| | - Gretchen Kurdziel
- Child and Adolescent Development Lab, University of Tennessee, Knoxville, Knoxville, Tennessee
| | - Laura MacPherson
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, College Park, Maryland
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Felton JW, Collado A, Shadur JM, Lejuez CW, MacPherson L. Sex differences in self-report and behavioral measures of disinhibition predicting marijuana use across adolescence. Exp Clin Psychopharmacol 2015; 23:265-74. [PMID: 26237324 PMCID: PMC4523898 DOI: 10.1037/pha0000031] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [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] [Indexed: 11/08/2022]
Abstract
Disinhibition has been consistently linked to substance use across development. Recent research suggests, however, that these relations may be influenced by both sex and measurement approach. The current study examined the moderating effect of sex on the association between behavioral and self-report measures of disinhibition and marijuana use across adolescence. Participants were 115 boys and 89 girls initially evaluated at Grade 8 using a laboratory behavioral assessment and self-report questionnaires of disinhibitory variables. Marijuana use was measured annually from Grades 9 through 12. Results suggest that boys and girls did not differ on either self-reported or behaviorally assessed levels of disinhibition, and that disinhibition measured using both approaches was associated with increases in marijuana use over time. There was a significant interaction between sex and disinhibition, suggesting that boys (but not girls) who self-reported elevations in disinhibition evidenced greater increases in marijuana use. The current findings add to a growing literature supporting the importance of using multiple methods to assess disinhibition and highlight the critical role of biological sex in understanding these relations.
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Affiliation(s)
- Julia W. Felton
- Department of Psychology, University of Maryland, College Park, MD
| | | | - Julia M. Shadur
- Department of Psychology, University of Maryland, College Park, MD
| | - Carl W. Lejuez
- Department of Psychology, University of Maryland, College Park, MD
| | - Laura MacPherson
- Department of Psychology, University of Maryland, College Park, MD
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Brown RA, Abrantes AM, Minami H, Prince MA, Bloom EL, Apodaca TR, Strong DR, Picotte DM, Monti PM, MacPherson L, Matsko SV, Hunt JI. Motivational Interviewing to Reduce Substance Use in Adolescents with Psychiatric Comorbidity. J Subst Abuse Treat 2015; 59:20-9. [PMID: 26362000 DOI: 10.1016/j.jsat.2015.06.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 02/16/2015] [Revised: 06/28/2015] [Accepted: 06/29/2015] [Indexed: 11/16/2022]
Abstract
Substance use among adolescents with one or more psychiatric disorders is a significant public health concern. In this study, 151 psychiatrically hospitalized adolescents, ages 13-17 with comorbid psychiatric and substance use disorders, were randomized to a two-session Motivational Interviewing intervention to reduce substance use plus treatment as usual (MI) vs. treatment as usual only (TAU). Results indicated that the MI group had a longer latency to first use of any substance following hospital discharge relative to TAU (36 days versus 11 days). Adolescents who received MI also reported less total use of substances and less use of marijuana during the first 6 months post-discharge, although this effect was not significant across 12 months. Finally, MI was associated with a significant reduction in rule-breaking behaviors at 6-month follow-up. Future directions are discussed, including means of extending effects beyond 6 months and dissemination of the intervention to community-based settings.
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Affiliation(s)
- Richard A Brown
- Butler Hospital, Providence, RI; Alpert Medical School of Brown University, Providence, RI.
| | - Ana M Abrantes
- Butler Hospital, Providence, RI; Alpert Medical School of Brown University, Providence, RI
| | - Haruka Minami
- Butler Hospital, Providence, RI; Alpert Medical School of Brown University, Providence, RI
| | - Mark A Prince
- Butler Hospital, Providence, RI; Alpert Medical School of Brown University, Providence, RI
| | - Erika Litvin Bloom
- Butler Hospital, Providence, RI; Alpert Medical School of Brown University, Providence, RI
| | | | | | - Dawn M Picotte
- Butler Hospital, Providence, RI; Alpert Medical School of Brown University, Providence, RI
| | - Peter M Monti
- Center for Alcohol and Addiction Studies, Brown University, Providence, RI
| | | | | | - Jeffrey I Hunt
- Alpert Medical School of Brown University, Providence, RI; Bradley Hospital, East Providence, RI
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Ahmed S, Bott D, Gomez A, Tamblyn L, Rasheed A, Cho T, MacPherson L, Sugamori KS, Yang Y, Grant DM, Cummins CL, Matthews J. Loss of the Mono-ADP-ribosyltransferase, Tiparp, Increases Sensitivity to Dioxin-induced Steatohepatitis and Lethality. J Biol Chem 2015; 290:16824-40. [PMID: 25975270 DOI: 10.1074/jbc.m115.660100] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [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: 05/01/2015] [Indexed: 12/11/2022] Open
Abstract
The aryl hydrocarbon receptor (AHR) mediates the toxic effects of the environmental contaminant dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin; TCDD). Dioxin causes a range of toxic responses, including hepatic damage, steatohepatitis, and a lethal wasting syndrome; however, the mechanisms are still unknown. Here, we show that the loss of TCDD-inducible poly(ADP-ribose) polymerase (Tiparp), an ADP-ribosyltransferase and AHR repressor, increases sensitivity to dioxin-induced toxicity, steatohepatitis, and lethality. Tiparp(-/-) mice given a single injection of 100 μg/kg dioxin did not survive beyond day 5; all Tiparp(+/+) mice survived the 30-day treatment. Dioxin-treated Tiparp(-/-) mice exhibited increased liver steatosis and hepatotoxicity. Tiparp ADP-ribosylated AHR but not its dimerization partner, the AHR nuclear translocator, and the repressive effects of TIPARP on AHR were reversed by the macrodomain containing mono-ADP-ribosylase MACROD1 but not MACROD2. These results reveal previously unidentified roles for Tiparp, MacroD1, and ADP-ribosylation in AHR-mediated steatohepatitis and lethality in response to dioxin.
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Affiliation(s)
| | - Debbie Bott
- From the Department of Pharmacology and Toxicology
| | - Alvin Gomez
- From the Department of Pharmacology and Toxicology
| | | | - Adil Rasheed
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Tiffany Cho
- From the Department of Pharmacology and Toxicology
| | | | | | - Yang Yang
- From the Department of Pharmacology and Toxicology
| | - Denis M Grant
- From the Department of Pharmacology and Toxicology, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Carolyn L Cummins
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 1A8, Canada
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Bounoua N, Felton JF, Long K, Stadnik RD, Loya JM, MacPherson L, Lejuez CW. Childhood emotional abuse and borderline personality features: The role of anxiety sensitivity among adolescents. Personal Ment Health 2015; 9:87-95. [PMID: 25940514 DOI: 10.1002/pmh.1295] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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] [Received: 12/11/2014] [Revised: 02/18/2015] [Accepted: 03/02/2015] [Indexed: 11/06/2022]
Abstract
Borderline personality disorder (BPD) is a pervasive personality disorder that poses a burden for affected individuals, their family members and society as a whole. Current research suggests that early childhood abuse, including emotional abuse, may be an important predictor of later BPD symptomology. Further, an emerging body of literature suggests that anxiety sensitivity (AS) may serve as a form of emotional vulnerability and be a key variable in the relation between abuse and the development of BPD symptomatology. This literature has relied on retrospective recall of abuse and AS in adult samples. As a result, there is a dearth of literature examining these variables in adolescence, which is a developmental period in which personality traits begin to emerge. This study explored the impact of AS in the development of BPD symptoms in a group of 277 adolescents. Results suggest a significant indirect effect of emotional abuse on BPD symptoms via AS, after controlling for sex, grade and prior levels of AS (indirect effect = 0.04, standard error (SE) = 0.02 (95% confidence interval (CI) = 0.001-0.070)). These findings suggest that, among adolescents, AS may serve as an important contributor to the development of BPD symptoms. Implications for interventions and future research are further discussed.
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Affiliation(s)
- Nadia Bounoua
- Center for Addictions, Personality and Emotion Research, Department of Psychology, University of Maryland, College Park, MD, 20742, USA
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Dahne J, Hise L, Brenner M, Lejuez CW, MacPherson L. An experimental investigation of the functional relationship between social phobia and cigarette smoking. Addict Behav 2015; 43:66-71. [PMID: 25576952 PMCID: PMC4304918 DOI: 10.1016/j.addbeh.2014.12.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 08/26/2014] [Revised: 12/13/2014] [Accepted: 12/18/2014] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Individuals with social phobia (SP) represent a large group with elevated rates of cigarette smoking and cessation rates lower than that of individuals without psychopathology. For individuals with SP, cigarette smoking may be used to reduce social anxiety in anticipation of and during social situations. However, no study to date has experimentally examined this association. The aim of the current study was to experimentally examine the relationship between cigarette smoking and SP as a function of induced social stress. METHOD We recruited daily smokers ages 18-21 who scored in either a clinical or normative range on the Social Interaction Anxiety Scale (SIAS). Participants included 54 smokers (42.6% female, 77.8% White, age M(SD)=19.65(1.18), CPSD M(SD)=7.67(4.36), 46.30% high SP) who attended two sessions: one social stress session and one neutral session. RESULTS Results indicated that high SP smokers experienced significant decreases in negative affect (NA) following smoking a cigarette when experiencing social stress. This effect was specific to high SP smokers under social stress and was not observed among individuals' average in SP or when examining changes in positive affect. CONCLUSIONS For individuals with SP, cigarette smoking may be maintained due to changes in NA associated with smoking specifically in the context of social stress. These results speak to the importance of targeted cessation interventions that address the nature of smoking for individuals with SP.
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Affiliation(s)
- Jennifer Dahne
- Center for Addictions, Personality and Emotion Research, University of Maryland, College Park, 2103 Cole Student Activities Building, College Park, MD 20742, United States.
| | - Leanne Hise
- Center for Addictions, Personality and Emotion Research, University of Maryland, College Park, 2103 Cole Student Activities Building, College Park, MD 20742, United States
| | - Misha Brenner
- Center for Addictions, Personality and Emotion Research, University of Maryland, College Park, 2103 Cole Student Activities Building, College Park, MD 20742, United States
| | - C W Lejuez
- Center for Addictions, Personality and Emotion Research, University of Maryland, College Park, 2103 Cole Student Activities Building, College Park, MD 20742, United States
| | - Laura MacPherson
- Center for Addictions, Personality and Emotion Research, University of Maryland, College Park, 2103 Cole Student Activities Building, College Park, MD 20742, United States.
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Bindesbøll C, Fan Q, Nørgaard RC, MacPherson L, Ruan HB, Wu J, Pedersen TÅ, Steffensen KR, Yang X, Matthews J, Mandrup S, Nebb HI, Grønning-Wang LM. Liver X receptor regulates hepatic nuclear O-GlcNAc signaling and carbohydrate responsive element-binding protein activity. J Lipid Res 2015; 56:771-85. [PMID: 25724563 DOI: 10.1194/jlr.m049130] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Liver X receptor (LXR)α and LXRβ play key roles in hepatic de novo lipogenesis through their regulation of lipogenic genes, including sterol regulatory element-binding protein (SREBP)-1c and carbohydrate responsive element-binding protein (ChREBP). LXRs activate lipogenic gene transcription in response to feeding, which is believed to be mediated by insulin. We have previously shown that LXRs are targets for glucose-hexosamine-derived O-linked β-N-acetylglucosamine (O-GlcNAc) modification enhancing their ability to regulate SREBP-1c promoter activity in vitro. To elucidate insulin-independent effects of feeding on LXR-mediated lipogenic gene expression in vivo, we subjected control and streptozotocin-treated LXRα/β(+/+) and LXRα/β(-/-) mice to a fasting-refeeding regime. We show that under hyperglycemic and hypoinsulinemic conditions, LXRs maintain their ability to upregulate the expression of glycolytic and lipogenic enzymes, including glucokinase (GK), SREBP-1c, ChREBPα, and the newly identified shorter isoform ChREBPβ. Furthermore, glucose-dependent increases in LXR/retinoid X receptor-regulated luciferase activity driven by the ChREBPα promoter was mediated, at least in part, by O-GlcNAc transferase (OGT) signaling in Huh7 cells. Moreover, we show that LXR and OGT interact and colocalize in the nucleus and that loss of LXRs profoundly reduced nuclear O-GlcNAc signaling and ChREBPα promoter binding activity in vivo. In summary, our study provides evidence that LXRs act as nutrient and glucose metabolic sensors upstream of ChREBP by modulating GK expression, nuclear O-GlcNAc signaling, and ChREBP expression and activity.
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Affiliation(s)
- Christian Bindesbøll
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, N-0316 Oslo, Norway
| | - Qiong Fan
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, N-0316 Oslo, Norway
| | - Rikke C Nørgaard
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, N-0316 Oslo, Norway
| | - Laura MacPherson
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario M5S1A8, Canada
| | - Hai-Bin Ruan
- Program in Integrative Cell Signaling and Neurobiology of Metabolism, Yale University School of Medicine, New Haven, CT 06519 Section of Comparative Medicine, Yale University School of Medicine, New Haven, CT 06519
| | - Jing Wu
- Program in Integrative Cell Signaling and Neurobiology of Metabolism, Yale University School of Medicine, New Haven, CT 06519 Section of Comparative Medicine, Yale University School of Medicine, New Haven, CT 06519
| | - Thomas Å Pedersen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense M, Denmark
| | - Knut R Steffensen
- Division of Clinical Chemistry Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, C174, SE-141 86 Stockholm, Sweden
| | - Xiaoyong Yang
- Program in Integrative Cell Signaling and Neurobiology of Metabolism, Yale University School of Medicine, New Haven, CT 06519 Section of Comparative Medicine, Yale University School of Medicine, New Haven, CT 06519 Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, CT 06519
| | - Jason Matthews
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, N-0316 Oslo, Norway Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario M5S1A8, Canada
| | - Susanne Mandrup
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense M, Denmark
| | - Hilde I Nebb
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, N-0316 Oslo, Norway
| | - Line M Grønning-Wang
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, N-0316 Oslo, Norway
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Richards JM, Patel N, Daniele T, MacPherson L, Lejuez C, Ernst M. Social anxiety, acute social stress, and reward parameters interact to predict risky decision-making among adolescents. J Anxiety Disord 2015; 29:25-34. [PMID: 25465884 PMCID: PMC4315762 DOI: 10.1016/j.janxdis.2014.10.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 03/10/2014] [Revised: 10/10/2014] [Accepted: 10/20/2014] [Indexed: 11/30/2022]
Abstract
Risk-taking behavior increases during adolescence, leading to potentially disastrous consequences. Social anxiety emerges in adolescence and may compound risk-taking propensity, particularly during stress and when reward potential is high. However, the manner in which social anxiety, stress, and reward parameters interact to impact adolescent risk-taking is unclear. To clarify this question, a community sample of 35 adolescents (15-18yo), characterized as having high or low social anxiety, participated in a study over two separate days, during each of which they were exposed to either a social stress or a control condition, while performing a risky decision-making task. The task manipulated, orthogonally, reward magnitude and probability across trials. Three findings emerged. First, reward magnitude had a greater impact on the rate of risky decisions in high social anxiety (HSA) than low social anxiety (LSA) adolescents. Second, reaction times (RTs) were similar during the social stress and the control conditions for the HSA group, whereas the LSA group's RTs differed between conditions. Third, HSA adolescents showed the longest RTs on the most negative trials. These findings suggest that risk-taking in adolescents is modulated by context and reward parameters differentially as a function of social anxiety.
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Affiliation(s)
- Jessica M. Richards
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Suite 100, Baltimore, MD 21224, United States
| | - Nilam Patel
- National Institute of Mental Health, Bethesda, MD 20817-2670, USA
| | - Teresa Daniele
- National Catholic School of Social Service, The Catholic University of America, Washington, DC 20064, USA
| | - Laura MacPherson
- Department of Psychology, University of Maryland College Park, 2103 Cole Field House, University of Maryland College Park, College Park, MD 20741, USA
| | - C.W. Lejuez
- Department of Psychology, University of Maryland College Park, 2103 Cole Field House, University of Maryland College Park, College Park, MD 20741, USA
| | - Monique Ernst
- National Institute of Mental Health, Bethesda, MD 20817-2670, USA.
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Dahne J, Hoffman EM, MacPherson L. The association between anxiety sensitivity and motivation to quit smoking among women and men in residential substance use treatment. Subst Use Misuse 2015; 50:72-8. [PMID: 25265420 PMCID: PMC4457284 DOI: 10.3109/10826084.2014.958856] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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] [Indexed: 11/13/2022]
Abstract
BACKGROUND Smoking-attributed mortality is the leading cause of death among individuals in residential substance use treatment. As such, identifying factors that influence smoking cessation is highly relevant and important for this group. Motivation to quit (MTQ) smoking is one such factor that is related to smoking cessation. OBJECTIVES In the present study we examine the relationship between Anxiety Sensitivity (AS) and MTQ among individuals enrolled in a residential substance use treatment center in Washington, DC. In light of gender differences in smoking cessation as well as factors that contribute to cessation, we examined this relationship by gender in men and women using multiple group path analysis. METHODS Participants (n = 472) completed a measure of MTQ, the structured clinical interview for DSM-IV (SCID-IV-TR), a measure of AS, and self-reported their number of cigarettes smoked per day prior to entering a restricted environment. RESULTS RESULTS indicated that AS was significantly related to MTQ in women (standardized path estimate = 0.21, p = .01), but was not significantly related to MTQ in men. Conclusions/Importance: Findings suggest the importance of considering AS as a factor in MTQ for women and subsequent smoking cessation among individuals in residential substance use treatment. RESULTS of this study contribute to the extant literature on predictors of MTQ and highlight the need for tailored cessation interventions with AS as one potential cessation treatment target.
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Affiliation(s)
- Jennifer Dahne
- Department of Psychology, University of Maryland, College Park, Maryland, USA
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42
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Allan NP, Capron DW, Lejuez CW, Reynolds EK, MacPherson L, Schmidt NB. Developmental trajectories of anxiety symptoms in early adolescence: the influence of anxiety sensitivity. J Abnorm Child Psychol 2014; 42:589-600. [PMID: 24062146 DOI: 10.1007/s10802-013-9806-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Children and adolescents seem to suffer from anxiety disorders at rates similar to adults. Interestingly, anxiety symptoms appear to generally decline over time within children as evidenced by lower rates in early and middle adolescence. There is some evidence that there may be heterogeneous subpopulations of adolescent children with different trajectories of anxiety symptoms, including a class of adolescents with elevated levels of anxiety that do not dissipate over time. Anxiety sensitivity has been identified as an important risk factor in the development of anxiety psychopathology. This study prospectively examined the development of anxiety symptoms in a sample of 277 adolescents (M age = 11.52; 44 % female, 56 % male) over a 3 year period including the influence of anxiety sensitivity on this development. Further, this study investigated whether there were distinct classes of adolescents based on their anxiety symptom trajectories and including anxiety sensitivity as a predictor. Consistent with other reports, findings indicated an overall decline in anxiety symptoms over time in the sample. However, three classes of adolescents were found with distinct anxiety symptom trajectories and anxiety sensitivity was an important predictor of class membership. Adolescents with elevated anxiety sensitivity scores were more likely to be classified as having high and increasing anxiety symptoms over time versus having moderate to low and decreasing anxiety symptoms over time. There are important implications for identification of adolescents and children who are at risk for the development of an anxiety disorder.
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Affiliation(s)
- Nicholas P Allan
- Department of Psychology, Florida State University, P.O. Box 3064301, Tallahasssee, FL, 32306-4301, USA
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Collado A, Felton JW, MacPherson L, Lejuez C. Longitudinal trajectories of sensation seeking, risk taking propensity, and impulsivity across early to middle adolescence. Addict Behav 2014; 39:1580-1588. [PMID: 24566195 DOI: 10.1016/j.addbeh.2014.01.024] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 12/02/2013] [Accepted: 01/29/2014] [Indexed: 11/27/2022]
Abstract
Adolescent substance use and abuse show associations with increases in disinhibitory constructs, including sensation seeking, risk taking propensity, and impulsivity. However, the longitudinal trajectories of these constructs from early to middle adolescence remain largely unknown. Thus, the current study examined these developmental trajectories in 277 adolescents (Mage=11.00 at Wave 1), over five consecutive yearly waves. Controlling for age, Hierarchical Linear Modeling analyses showed that sensation seeking increased linearly, whereas risk taking propensity and impulsivity demonstrated curvilinear changes. Specifically, risk taking propensity increased in the first four waves of assessment but did not evidence changes at the last assessment wave. Impulsivity, on the other hand peaked at wave four before subsequently declining. A comparison between females and males and Black and White adolescents suggested that these groups' trajectories were similar. Black adolescents' sensation seeking trajectory differed from adolescents who belonged to the "Other" racial group (i.e., adolescents who neither self-identified as Black or White). Generally, the study findings replicate and extend earlier work indicating that these risk factors increase across early adolescence and begin to level-off during middle adolescence. The importance of understanding the natural course of these core constructs is of great importance for directing future relevant prevention and intervention work.
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Collado-Rodriguez A, MacPherson L, Kurdziel G, Rosenberg LA, Lejuez C. The Relationship between Puberty and Risk Taking in the Real World and in the Laboratory. Pers Individ Dif 2014; 68:143-148. [PMID: 24999291 PMCID: PMC4078402 DOI: 10.1016/j.paid.2014.04.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Adolescence is marked by the emergence and escalation of risk taking. Puberty has been long-implicated as constituting vulnerability for risk behavior during this developmental period. Sole reliance on self-reports of risk taking however poses limitations to understanding this complex relationship. There exist potential advantages of complementing self-reports by using the BART-Y laboratory task, a well-validated measure of adolescent risk taking. Toward this end, we examined the association between self-reported puberty and both self-reported and BART-Y risk taking in 231 adolescents. Results showed that pubertal status predicted risk taking using both methodologies above and beyond relevant demographic characteristics. Advantages of a multimodal assessment toward understanding the effects of puberty in adolescent risk taking are discussed and future research directions offered.
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Hamilton KR, Felton JW, Risco CM, Lejuez CW, MacPherson L. Brief report: The interaction of impulsivity with risk-taking is associated with early alcohol use initiation. J Adolesc 2014; 37:1253-6. [PMID: 25278465 DOI: 10.1016/j.adolescence.2014.08.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 01/07/2014] [Revised: 07/09/2014] [Accepted: 08/26/2014] [Indexed: 11/28/2022]
Abstract
Early alcohol use initiation is a well-established risk factor for the subsequent development of alcohol abuse and dependence. Separate lines of research indicate that impulsivity and risk-taking each are associated with early alcohol use. In this research, the association of the interaction of risk-taking and impulsivity with early alcohol initiation was examined. Results suggest the interaction between impulsivity and risk-taking was related to early alcohol initiation. Among children with lower levels of risk-taking, level of impulsivity was associated with beginning to drink. By contrast, among children with higher levels of risk-taking, level of impulsivity was not associated with the likelihood of initiating alcohol use. These findings suggest that early adolescence is a critical developmental period in which implementing an intervention to reduce impulsivity and risk-taking may be particularly effective to prevent the early initiation of alcohol use.
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Affiliation(s)
- Kristen R Hamilton
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, MD, USA.
| | - Julia W Felton
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, MD, USA
| | - Cristina M Risco
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, MD, USA
| | - C W Lejuez
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, MD, USA
| | - Laura MacPherson
- Center for Addictions, Personality, and Emotion Research, University of Maryland, College Park, MD, USA
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Collado A, Long KE, MacPherson L, Lejuez CW. The efficacy of a behavioral activation intervention among depressed US Latinos with limited English language proficiency: study protocol for a randomized controlled trial. Trials 2014; 15:231. [PMID: 24938081 PMCID: PMC4074338 DOI: 10.1186/1745-6215-15-231] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Accepted: 06/04/2014] [Indexed: 12/02/2022] Open
Abstract
Background Major depressive disorder is highly prevalent among Latinos with limited English language proficiency in the United States. Although major depressive disorder is highly treatable, barriers to depression treatment have historically prevented Latinos with limited English language proficiency from accessing effective interventions. The project seeks to evaluate the efficacy of behavioral activation treatment for depression, an empirically supported treatment for depression, as an intervention that may address some of the disparities surrounding the receipt of efficacious mental health care for this population. Methods/design Following a pilot study of behavioral activation treatment for depression with 10 participants which yielded very promising results, the current study is a randomized control trial testing behavioral activation treatment for depression versus a supportive counseling treatment for depression. We are in the process of recruiting 60 Latinos with limited English language proficiency meeting criteria for major depressive disorder according to the Diagnostic and Statistical Manual of Mental Disorders 4th and 5th Edition for participation in a single-center efficacy trial. Participants are randomized to receive 10 sessions of behavioral activation treatment for depression (n = 30) or 10 sessions of supportive counseling (n = 30). Assessments occur prior to each session and at 1 month after completing treatment. Intervention targets include depressive symptomatology and the proposed mechanisms of behavioral activation treatment for depression: activity level and environmental reward. We will also examine other factors related to treatment outcome such as treatment adherence, treatment satisfaction, and therapeutic alliance. Discussion This randomized controlled trial will allow us to determine the efficacy of behavioral activation treatment for depression in a fast-growing, yet highly underserved population in US mental health services. The study is also among the first to examine the effect of the proposed mechanisms of change of behavioral activation treatment for depression (that is, activity level and environmental reward) on depression over time. To our knowledge, this is the first randomized controlled trial to compare an empirical-supported treatment to a control supportive counseling condition in a sample of depressed, Spanish-speaking Latinos in the United States. Trial registration Clinical Trials Register: NCT01958840; registered 8 October 2013.
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Affiliation(s)
- Anahi Collado
- Center for Addictions, Personality, and Emotion Research (CAPER), 2103 Cole Field House, University of Maryland, College Park, MD 20742, USA.
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Mazursky-Horowitz H, Felton JW, MacPherson L, Ehrlich KB, Cassidy J, Lejuez CW, Chronis-Tuscano A. Maternal Emotion Regulation Mediates the Association Between Adult Attention-Deficit/Hyperactivity Disorder Symptoms and Parenting. J Abnorm Child Psychol 2014; 43:121-31. [DOI: 10.1007/s10802-014-9894-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Banducci AN, Long KE, MacPherson L. A Case Series of a Behavioral Activation−Enhanced Smoking Cessation Program for Inpatient Substance Users With Elevated Depressive Symptoms. Clin Case Stud 2014. [DOI: 10.1177/1534650114538699] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [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: 11/16/2022]
Abstract
Smoking is the leading preventable cause of death and disease in the world and represents a critical public health problem. Smokers with substance use disorders and depressive symptoms have particular difficulties quitting smoking and represent an underserved population. The current study utilized a novel behavioral activation (BA)−enhanced smoking cessation treatment with three clients in residential substance use treatment who had elevated depressive symptoms. We present detailed descriptions of the treatment they received and the challenges they faced. Our clients, who received five individual BA-enhanced smoking cessation sessions and two follow-up booster sessions, benefited significantly from the BA treatment. Over an 8-week follow-up period, they did not relapse to smoking and experienced significant decreases in depressive symptoms. This suggests BA may be a beneficial treatment strategy for this particularly challenging population.
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Kelly T, Prah M, Jogal S, Maheshwari M, Lew S, Schmainda K, Kannan G, Khatua S, Zaky W, Ketonen L, Drogosiewicz M, Dembowska-Baginska B, Jurkiewicz E, Nowak K, Perek D, Hirpara D, Bhatt M, Scheinemann K, Shimizu Y, Kondo A, Miyajima M, Arai H, Dvir R, Shiran S, Sira LB, Roth J, Tabori U, Bouffet E, Durno C, Aronson M, Constantini S, Elhasid R, Fangusaro J, Marsh J, Bregman C, Diaz A, Byrne R, Ziel E, Goldman S, Calmon R, Grevent D, Blauwblomme T, Puget S, Sainte-Rose C, Varlet P, Dufour C, Grill J, Saitovich A, Zilbovicius M, Brunelle F, Boddaert N, Wei L, Tan AM, Tang PH, Orphanidou-Vlachou E, Vlachos N, Davies N, Arvanitis T, Grundy R, Peet A, Withey S, Novak J, MacPherson L, Peet A, Avula S, Kumar R, Pizer B, Pettorini B, Garlick D, Mallucci C, Reddick W, Guo J, Glass J, Pryweller J, Gajjar A, Thust S, Blanco E, Mankad K, Michalski A. RADIOLOGY. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou064] [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: 11/14/2022] Open
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Shofty B, Bokstein F, Ram Z, Ben-Sira L, Freedman S, Kesler A, Constantini S, Shofty B, Mauda-Havakuk M, Ben-Bashat D, Dvir R, Pratt LT, Weizman L, Joskowicz L, Tal M, Ravid L, Ben-Sira L, Constantini S, Dodgshun A, Maixner W, Sullivan M, Hansford J, Ma J, Wang B, Toledano H, Muhsinoglu O, Luckman J, Michowiz S, Goldenberg-Cohen N, Schroeder K, Rosenfeld A, Grant G, McLendon R, Cummings T, Becher O, Gururangan S, Aguilera D, Mazewski C, Janss A, Castellino RC, Schniederjan M, Hayes L, Brahma B, MacDonald T, Osugi Y, Kiyotani C, Sakamoto H, Yanagisawa T, Kanno M, Kamimura S, Kosaka Y, Hirado J, Takimoto T, Nakazawa A, Hara J, Hwang E, Mun A, Kilburn L, Chi S, Knipstein J, Oren M, Dvir R, Hardy K, Rood B, Packer R, Kandels D, Schmidt R, Geh M, Breitmoser-Greiner S, Gnekow AK, Bergthold G, Bandopadhayay P, Rich B, Chan J, Santagata S, Hoshida Y, Ramkissoon S, Ramkissoon L, Golub T, Tabak B, Ferrer-Luna R, Weng PY, Stiles C, Grill J, Kieran MW, Ligon KL, Beroukhim R, Fisher MJ, Levin MH, Armstrong GT, Broad JH, Zimmerman R, Bilaniuk LT, Feygin T, Liu GT, Gan HW, Phipps K, Spoudeas HA, Kohorst M, Warad D, Keating G, Childs S, Giannini C, Wetjen N, Rao; AN, Nakamura H, Makino K, Hide T, Kuroda JI, Shinojima N, Yano S, Kuratsu JI, Rush S, Madden J, Hemenway M, Foreman N, Sie M, den Dunnen WFA, Lourens HJ, Meeuwsen-de Boer TGJ, Scherpen FJG, Kampen KR, Hoving EW, de Bont ESJM, Gnekow AK, Kandels D, Walker DA, Perilongo G, Grill J, Stokland T, Sehested AM, van Schouten AYN, de Paoli A, de Salvo GL, Pache-Leschhorn S, Geh M, Schmidt R, Gnekow AK, Gass D, Rupani K, Tsankova N, Stark E, Anderson R, Feldstein N, Garvin J, Deel M, McLendon R, Becher O, Karajannis M, Wisoff J, Muh C, Schroeder K, Gururangan S, del Bufalo F, Carai A, Macchiaiolo M, Messina R, Cacchione A, Palmiero M, Cambiaso P, Mastronuzzi A, Anderson M, Leary S, Sun Y, Buhrlage S, Pilarz C, Alberta J, Stiles C, Gray N, Mason G, Packer R, Hwang E, Biassoni V, Schiavello E, Bergamaschi L, Chiaravalli S, Spreafico F, Massimino M, Krishnatry R, Kroupnik T, Zhukova N, Mistry M, Zhang C, Bartels U, Huang A, Adamski J, Dirks P, Laperriere N, Silber J, Hawkins C, Bouffet E, Tabori U, Riccardi R, Rizzo D, Chiaretti A, Piccardi M, Dickmann A, Lazzareschi I, Ruggiero A, Guglielmi G, Salerni A, Manni L, Colosimo C, Falsini B, Rosenfeld A, Etzl M, Miller J, Carpenteri D, Kaplan A, Sieow N, Hoe R, Tan AM, Chan MY, Soh SY, Orphanidou-Vlachou E, MacPherson L, English M, Auer D, Jaspan T, Arvanitis T, Grundy R, Peet A, Bandopadhayay P, Bergthold G, Sauer N, Green A, Malkin H, Dabscheck G, Marcus K, Ullrich N, Goumnerova L, Chi S, Beroukhim R, Kieran M, Manley P, Donson A, Kleinschmidt-DeMasters B, Aisner D, Bemis L, Birks D, Mulcahy-Levy J, Smith A, Handler M, Rush S, Foreman N, Davidson A, Figaji A, Pillay K, Kilborn T, Padayachy L, Hendricks M, van Eyssen A, Parkes J, Gass D, Dewire M, Chow L, Rose SR, Lawson S, Stevenson C, Jones B, Pai A, Sutton M, Pruitt D, Fouladi M, Hummel T, Cruz O, de Torres C, Sunol M, Morales A, Santiago C, Alamar M, Rebollo M, Mora J, Sauer N, Dodgshun A, Malkin H, Bergthold G, Manley P, Chi S, Ramkissoon S, MacGregor D, Beroukhim R, Kieran M, Sullivan M, Ligon K, Bandopadhayay P, Hansford J, Messina R, De Benedictis A, Carai A, Mastronuzzi A, Rebessi E, Palma P, Procaccini E, Marras CE, Aguilera D, Castellino RC, Janss A, Schniederjan M, McNall R, Kim S, MacDOnald T, Mazewski C, Zhukova N, Pole J, Mistry M, Fried I, Krishnatry R, Stucklin AG, Bartels U, Huang A, Laperriere N, Dirks P, Zelcer S, Sylva M, Johnston D, Scheinemann K, An J, Hawkins C, Nathan P, Greenberg M, Bouffet E, Malkin D, Tabori U, Kiehna E, Da Silva S, Margol A, Robison N, Finlay J, McComb JG, Krieger M, Wong K, Bluml S, Dhall G, Ayyanar K, Moriarty T, Moeller K, Farber D. LOW GRADE GLIOMAS. Neuro Oncol 2014; 16:i60-i70. [PMCID: PMC4046289 DOI: 10.1093/neuonc/nou073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023] Open
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