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Gancarz AM, Hagarty DP, Cobb MM, Kausch MA, Krieg B, Alammari N, Gilbert K, Russo J, Dietz DM. Operant novelty seeking predicts cue-induced reinstatement following cocaine but not water reinforcement in male rats. Psychopharmacology (Berl) 2023; 240:2201-2215. [PMID: 37552291 PMCID: PMC10506955 DOI: 10.1007/s00213-023-06441-4] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/25/2023] [Indexed: 08/09/2023]
Abstract
RATIONALE An important facet of cocaine addiction is a high propensity to relapse, with increasing research investigating factors that predispose individuals toward uncontrolled drug use and relapse. A personality trait linked to drug addiction is high sensation seeking, i.e., a preference for novel sensations/experiences. In an animal model of sensation seeking, operant novelty seeking predicts the acquisition of drug self-administration. OBJECTIVE The primary goal of this research was to evaluate the hypothesis that sensitivity to the reinforcing effects of novel sensory stimuli predicts more intensive aspects of drug-taking behaviors, such as relapse. METHODS Rats were first tested for Operant Novelty Seeking, during which responses resulted in complex visual/auditory stimuli. Next, rats were trained to respond to water/cocaine reinforcers signaled by a cue light. Finally, rats were exposed to extinction in the absence of discrete cues and subsequently tested in a single session of cue-induced reinstatement, during which active responses resulted in cues previously paired with water/cocaine delivery. RESULTS The present study showed operant responses to produce novel sensory stimuli positively correlate with responding for cocaine during self-administration and during discrete cue-induced reinstatement, but no association with performance during extinction. A different pattern of associations was observed for a natural reward, in this case, water reinforcement. Here, the degree of novelty seeking also correlated with responding to water reinforcement and extinction responding; however, operant novelty seeking did not correlate with responding to water cues during testing of cue-induced reinstatement. Taken together, the incongruence of relationships indicates an underlying difference between natural and drug reinforcers. CONCLUSION In summary, we found a reinforcer-dependent relationship between operant novelty seeking (i.e., sensation seeking) and responsivity to extinction and discrete cues signaling availability for cocaine (i.e., craving), demonstrating the validity of the operant novelty seeking model to investigate drug seeking and relapse.
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Affiliation(s)
- Amy M Gancarz
- Department of Psychology, California State University, Bakersfield, Dorothy Donahoe Hall (DDH) H106, 9001 Stockdale Highway, Bakersfield, CA, 93311, USA.
| | - Devin P Hagarty
- Department of Psychology, California State University, Bakersfield, Dorothy Donahoe Hall (DDH) H106, 9001 Stockdale Highway, Bakersfield, CA, 93311, USA
| | - Moriah M Cobb
- Department of Psychology, California State University, Bakersfield, Dorothy Donahoe Hall (DDH) H106, 9001 Stockdale Highway, Bakersfield, CA, 93311, USA
| | - Michael A Kausch
- Department of Psychology, California State University, Bakersfield, Dorothy Donahoe Hall (DDH) H106, 9001 Stockdale Highway, Bakersfield, CA, 93311, USA
| | - Brandon Krieg
- Department of Psychology, California State University, Bakersfield, Dorothy Donahoe Hall (DDH) H106, 9001 Stockdale Highway, Bakersfield, CA, 93311, USA
| | - Nora Alammari
- Department of Psychology, California State University, Bakersfield, Dorothy Donahoe Hall (DDH) H106, 9001 Stockdale Highway, Bakersfield, CA, 93311, USA
| | - Kameron Gilbert
- Department of Psychology, California State University, Bakersfield, Dorothy Donahoe Hall (DDH) H106, 9001 Stockdale Highway, Bakersfield, CA, 93311, USA
| | - Jacqueline Russo
- Department of Psychology, California State University, Bakersfield, Dorothy Donahoe Hall (DDH) H106, 9001 Stockdale Highway, Bakersfield, CA, 93311, USA
| | - David M Dietz
- Clinical and Research Institute On Addictions, University at Buffalo, Buffalo, NY, USA
- Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
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2
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Fattah YH, Liu SS, Susa J, Hanly A, Russo J, Karai LJ. Spindle Cell Lipoma With Florid Primary Follicular Lymphocytic Hyperplasia: A Novel Association With Potential Diagnostic Pitfalls. Am J Dermatopathol 2023; 45:563-566. [PMID: 37462206 DOI: 10.1097/dad.0000000000002483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
ABSTRACT Spindle cell lipoma (SCL) is a benign subcutaneous lipomatous neoplasm with a heterogeneous histologic appearance that varies greatly depending on the amount of fat, collagen, and myxoid stroma, which define the multiple subtypes of SCL, such as fat poor SCL, pseudoangiomatous SCL, and dendritic fibromyxolipoma. Cutaneous lymphoid hyperplasia is a spectrum of benign conditions characterized by reactive B-cell and T-cell cutaneous lymphocytic infiltrates. Cutaneous B-cell lymphoid hyperplasia is a heterogeneous group of non-neoplastic conditions that can be observed as reactive phenomena to infections, medications, allergens, or neoplasms and must be distinguished from cutaneous B-cell lymphomas. Here, we report a novel case of spindle cell lipoma, associated with B-cell primary lymphoid follicular hyperplasia, mixed within the tumor in a peculiar pattern, while discussing potential diagnostic pitfalls with low-grade B-cell lymphomas. This is the first report of such association in the literature.
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Affiliation(s)
- Yasmin H Fattah
- Department of Dermatology, Larkin Community Hospital, South Miami, FL
| | - Shuo S Liu
- Department of Dermatology, Larkin Community Hospital, South Miami, FL
| | - Joseph Susa
- Pro Path, Sonic Health Care USA, Dallas, TX; and
| | - Andrew Hanly
- Global Pathology, Sonic Health Care USA, Miami Lakes, FL
| | | | - Laszlo J Karai
- Global Pathology, Sonic Health Care USA, Miami Lakes, FL
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3
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Depypere H, Su Y, Dang N, Poppe B, Stanczyk FZ, Janssens J, Russo J. Prolonged recombinant pregnancy hormone use for breast cancer prevention in BRCA1 And 2 mutation carriers. Eur J Cancer Prev 2021; 31:S3-S4. [PMID: 37657893 DOI: 10.1097/01.cej.0000816644.52776.6e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- H Depypere
- Breast and Menopause clinic, University Hospital, C Heymanslaan 10, 9000 Gent, Belgium
| | - Y Su
- The Irma H Russo, MD-Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
| | - N Dang
- The Irma H Russo, MD-Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
| | - B Poppe
- Department of Clinical Genetics, University Hospital, C Heymanslaan 10, 9000 Gent, Belgium
| | - F Z Stanczyk
- Departments of Obstetrics and Gynecology, and Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - J Janssens
- European Cancer Prevention Organization, University of Hasselt, Klein Hilststraat 5, 3500 Hasselt, Belgium
| | - J Russo
- The Irma H Russo, MD-Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
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4
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Russo J, Knight B, Villalta SD. 127: Development of an annual cardiopulmonary exercise testing program for cystic fibrosis patients: One center’s experience. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01552-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Fu A, Barry Q, Boudreau R, Clifford C, Chow A, Simard T, Chong AY, Dick A, Froeschl M, Glover C, Hibbert B, Labinaz M, Le May M, Russo J, So D. Outcomes of patients with high bleeding risks characteristics presenting with acute coronary syndrome undergoing percutaneous coronary intervention. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Patients with high bleeding risk characteristics (HBR) presenting with acute coronary syndrome (ACS) pose a clinical challenge to balance risk for recurrent ischemic events versus incurring bleeding with dual antiplatelet therapy.
Purpose
We seek to determine the incidence and predictors of short and long term ischemic and bleeding outcomes in patients with HBR factors presenting with ACS after percutaneous coronary intervention (PCI).
Method
Consecutive patients over a 1-year period, who underwent PCI for ACS were categorized as having HBR based on: age ≥75, anemia (hemoglobin<110g/L), thrombocytopenia (platelet<100x109/L), renal failure (eGFR<30umol/L) or concurrent use of oral anticoagulation. Primary outcome was major adverse cardiovascular event (MACE) defined as composite of cardiovascular death, myocardial infarction, and stroke at 1 year. Key secondary outcomes include significant bleeding defined as Bleeding Academic Research Consortium (BARC) type 3 or 5, and net adverse cardiovascular event (NACE), as a composite of MACE and significant bleeding.
Results
Of 1351 patients presented with ACS, 389 (28.8%) had at least one HBR criteria. At 1 year, patients with HBR, compared to those without, had increased MACE (11.1% vs 4.2%, p<0.001) and cardiovascular death (5.7% vs 1.7%, p<0.001). Patients with HBR had increased significant bleeding (3.6% vs 2.3%, p=0.011) and NACE (14.4% vs 5.4%, p<0.001). Multivariate analysis showed the presence of HBR and prior history of myocardial infarction were predictors for 1-year MACE (OR 2.67, CI [1.62–4.42], p<0.001 and OR 2.18, CI [1.29–3.70], p=0.004, respectively), whereas the use of second-generation antiplatelet agent was not. Increased MACE and NACE were observed in HBR patients beyond 1 month of DAPT.
Conclusion
Among patients with ACS undergoing PCI, those with HBR had higher risk for both ischemic and bleeding complications. Novel strategies need to be considered for this high-risk group. Current guidelines, recommending 1 year of DAPT for patients with ACS, should be re-evaluated among patients with HBR.
Funding Acknowledgement
Type of funding sources: None. Kaplan-Meier curve for 1 year MACEKaplan-Meier curve for 1 year death
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Affiliation(s)
- A Fu
- University of Ottawa Heart Institute, Ottawa, Canada
| | - Q Barry
- University of Ottawa Heart Institute, Ottawa, Canada
| | - R Boudreau
- University of Ottawa Heart Institute, Ottawa, Canada
| | | | - A Chow
- University of Ottawa Heart Institute, Ottawa, Canada
| | - T Simard
- University of Ottawa Heart Institute, Ottawa, Canada
| | - A Y Chong
- University of Ottawa Heart Institute, Ottawa, Canada
| | - A Dick
- University of Ottawa Heart Institute, Ottawa, Canada
| | - M Froeschl
- University of Ottawa Heart Institute, Ottawa, Canada
| | - C Glover
- University of Ottawa Heart Institute, Ottawa, Canada
| | - B Hibbert
- University of Ottawa Heart Institute, Ottawa, Canada
| | - M Labinaz
- University of Ottawa Heart Institute, Ottawa, Canada
| | - M Le May
- University of Ottawa Heart Institute, Ottawa, Canada
| | - J Russo
- University of Ottawa Heart Institute, Ottawa, Canada
| | - D So
- University of Ottawa Heart Institute, Ottawa, Canada
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6
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Nowakowski GS, Chiappella A, Gascoyne RD, Scott DW, Zhang Q, Jurczak W, Özcan M, Hong X, Zhu J, Jin J, Belada D, Bergua JM, Piazza F, Mócikova H, Molinari AL, Yoon DH, Cavallo F, Tani M, Yamamoto K, Izutsu K, Kato K, Czuczman M, Hersey S, Kilcoyne A, Russo J, Hudak K, Zhang J, Wade S, Witzig TE, Vitolo U. ROBUST: A Phase III Study of Lenalidomide Plus R-CHOP Versus Placebo Plus R-CHOP in Previously Untreated Patients With ABC-Type Diffuse Large B-Cell Lymphoma. J Clin Oncol 2021; 39:1317-1328. [PMID: 33621109 PMCID: PMC8078325 DOI: 10.1200/jco.20.01366] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [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] [Indexed: 12/20/2022] Open
Abstract
Patients with the activated B-cell-like (ABC) subtype of diffuse large B-cell lymphoma (DLBCL) historically showed inferior survival with standard rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP). Phase II studies demonstrated that adding the immunomodulatory agent lenalidomide to R-CHOP improved outcomes in ABC-type DLBCL. The goal of the global, phase III ROBUST study was to compare lenalidomide plus R-CHOP (R2-CHOP) with placebo/R-CHOP in previously untreated, ABC-type DLBCL.
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Affiliation(s)
| | - Annalisa Chiappella
- Division of Hematology, A.O.U. Città della Salute e della Scienza Hospital and University, Torino, Italy
| | - Randy D Gascoyne
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - David W Scott
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Qingyuan Zhang
- Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Wojciech Jurczak
- Maria Sklodowska-Curie Institute-Oncology Centre, Cracow, Poland
| | - Muhit Özcan
- Department of Hematology, Ankara University, Ankara, Turkey
| | - Xiaonan Hong
- Cancer Hospital, Fudan University, Shanghai, China
| | - Jun Zhu
- Beijing Cancer Hospital, Beijing, China
| | - Jie Jin
- The First Affiliated Hospital of Medical School of Zhejiang University, First Hospital of Zhejiang Province, Hangzhou, Zhejiang, China
| | - David Belada
- Fourth Department of Internal Medicine-Hematology, Charles University Hospital and Faculty of Medicine, Hradec Králové, Czech Republic
| | - Juan Miguel Bergua
- Servicio de Hematologia, Hospital Universitario San Pedro de Alcántara, Cáceres, Spain
| | - Francesco Piazza
- Division of Hematology, Department of Medicine, University of Padova and Azienda Ospedaliera di Padova, Padova, Italy
| | - Heidi Mócikova
- Department of Internal Medicine and Haematology, Faculty Hospital Kralovske Vinohrady, Prague, Czech Republic
| | | | - Dok Hyun Yoon
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | | | - Monica Tani
- U.O. Ematologia, Dipartimento Oncologia e Ematologia, Ospedale Santa Maria delle Croci, Ravenna, Italy
| | - Kazuhito Yamamoto
- Department of Hematology and Cell Therapy, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Koji Izutsu
- National Cancer Center Hospital, Tokyo, Japan
| | - Koji Kato
- Department of Medicine and Biosystemic Science, Kyushu University Faculty of Medicine, Fukuoka City, Japan
| | - Myron Czuczman
- Clinical Research and Development, Celgene Corporation, Summit, NJ
| | - Sarah Hersey
- Translational Development, Precision Medicine and Companion Diagnostics, Celgene Corporation, Summit, NJ
| | - Adrian Kilcoyne
- Clinical Research and Development, Celgene Corporation, Summit, NJ
| | - Jacqueline Russo
- Clinical Research and Development, Celgene Corporation, Summit, NJ
| | - Krista Hudak
- Clinical Research and Development, Celgene Corporation, Summit, NJ
| | - Jingshan Zhang
- Clinical Research and Development, Celgene Corporation, Summit, NJ
| | - Steve Wade
- Department of Statistical Programming, Celgene Corporation, Overland Park, KS
| | | | - Umberto Vitolo
- Division of Hematology, A.O.U. Città della Salute e della Scienza Hospital and University, Torino, Italy
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7
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Lee M, Russo J, Thakkar H, Brooks M. Concomitant Spontaneous Coronary Artery Dissection and Takotsubo Cardiomyopathy. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Smith R, Russo J, Fiegel J, Brogden N. Antibiotic Delivery Strategies to Treat Skin Infections When Innate Antimicrobial Defense Fails. Antibiotics (Basel) 2020; 9:E56. [PMID: 32024064 PMCID: PMC7168299 DOI: 10.3390/antibiotics9020056] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/26/2020] [Accepted: 01/28/2020] [Indexed: 12/14/2022] Open
Abstract
The epidermal skin barrier protects the body from a host of daily challenges, providing protection against mechanical insults and the absorption of chemicals and xenobiotics. In addition to the physical barrier, the epidermis also presents an innate defense against microbial overgrowth. This is achieved through the presence of a diverse collection of microorganisms on the skin (the "microbiota") that maintain a delicate balance with the host and play a significant role in overall human health. When the skin is wounded, the local tissue with a compromised barrier can become colonized and ultimately infected if bacterial growth overcomes the host response. Wound infections present an immense burden in healthcare costs and decreased quality of life for patients, and treatment becomes increasingly important because of the negative impact that infection has on slowing the rate of wound healing. In this review, we discuss specific challenges of treating wound infections and the advances in drug delivery platforms and formulations that are under development to improve topical delivery of antimicrobial treatments.
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Affiliation(s)
- R. Smith
- Department of Chemical and Biochemical Engineering, The University of Iowa, Iowa City, IA 52242, USA; (R.S.); (J.F.)
| | - J. Russo
- Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa, Iowa City, IA 52242, USA;
| | - J. Fiegel
- Department of Chemical and Biochemical Engineering, The University of Iowa, Iowa City, IA 52242, USA; (R.S.); (J.F.)
- Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa, Iowa City, IA 52242, USA;
| | - N. Brogden
- Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa, Iowa City, IA 52242, USA;
- Department of Dermatology, The University of Iowa, Iowa City, IA 52242, USA
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9
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Nowakowski GS, Chiappella A, Witzig TE, Scott DW, Spina M, Gascoyne RD, Zhang L, Russo J, Kang J, Zhang J, Xu Y, Vitolo U. Variable global distribution of cell-of-origin from the ROBUST phase III study in diffuse large B-cell lymphoma. Haematologica 2020; 105:e72-e75. [PMID: 31221781 DOI: 10.3324/haematol.2019.220475] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
| | - Annalisa Chiappella
- Division of Hematology, Città della Salute e della Scienza Hospital and University, Torino, Italy
| | | | - David W Scott
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Michele Spina
- Division of Medical Oncology A, National Cancer Institute, Aviano, Italy
| | - Randy D Gascoyne
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.,Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, British Columbia, Canada
| | - Lei Zhang
- Celgene Corporation, Summit, NJ; USA
| | | | | | | | | | - Umberto Vitolo
- Division of Hematology, Città della Salute e della Scienza Hospital and University, Torino, Italy
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10
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Meaklim H, Rehm I, Junge M, Gullifer J, Lindner H, Russo J, Gurban S, Jackson M. Behavioral sleep medicine training in australia: audit of the aps practice certificate in sleep psychology. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.700] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Vitolo U, Witzig T, Gascoyne R, Scott D, Zhang Q, Jurczak W, Özcan M, Hong X, Zhu J, Jin J, Belada D, Bergua J, Piazza F, Mócikova H, Molinari A, Yoon D, Cavallo F, Tani M, Izutsu K, Kato K, Czuczman M, Hersey S, Kilcoyne A, Russo J, Hudak K, Zhang J, Chiappella A, Nowakowski G. ROBUST: First report of phase III randomized study of lenalidomide/R-CHOP (R2
-CHOP) vs placebo/R-CHOP in previously untreated ABC-type diffuse large B-cell lymphoma. Hematol Oncol 2019. [DOI: 10.1002/hon.5_2629] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- U. Vitolo
- Division of Hematology; A.O.U. Città della Salute e della Scienza Hospital and University; Torino Italy
| | - T.E. Witzig
- Division of Hematology; Mayo Clinic; Rochester MN United States
| | - R.D. Gascoyne
- Centre for Lymphoid Cancer; British Columbia Cancer; Vancouver BC Canada
| | - D.W. Scott
- Centre for Lymphoid Cancer; British Columbia Cancer; Vancouver BC Canada
| | - Q. Zhang
- Harbin Medical University Cancer Hospital; Harbin Heilongjiang China
| | - W. Jurczak
- Department of Hematology; Jagiellonian University; Krakow Poland
| | - M. Özcan
- Department of Hematology; Ankara University; Ankara Turkey
| | - X. Hong
- Cancer Hospital; Fudan University; Shanghai China
| | - J. Zhu
- Beijing Cancer Hospital; Beijing China
| | - J. Jin
- The First Affiliated Hospital of Medical School of Zhejiang University; First Hospital of Zhejiang Province; Zhejiang Hangzhou China
| | - D. Belada
- Fourth Department of Internal Medicine-Hematology; Charles University Hospital and Faculty of Medicine; Hradec Králové Czech Republic
| | - J.M. Bergua
- Servicio de Hematologia; Hospital Universitario San Pedro de Alcántara; Cáceres Spain
| | - F. Piazza
- Division of Hematology, Department of Medicine; University of Padova and Azienda Ospedaliera di Padova; Padova Italy
| | - H. Mócikova
- Department of Internal Medicine and Haematology; Faculty Hospital Kralovske Vinohrady; Prague Czech Republic
| | | | - D.H. Yoon
- Department of Oncology, Asan Medical Center; University of Ulsan College of Medicine; Seoul South Korea Republic of Korea
| | - F. Cavallo
- AOU Città della Salute e della Scienza di Torino; Turin Italy
| | - M. Tani
- U.O. Ematologia, Dipartimento Oncologia e Ematologia; Ospedale Santa Maria delle Croci; Ravenna Italy
| | - K. Izutsu
- National Cancer Center Hospital; Tokyo Japan
| | - K. Kato
- Department of Medicine and Biosystemic Science; Kyushu University Faculty of Medicine; Fukuoka City Japan
| | - M. Czuczman
- Clinical Research & Development; Celgene Corporation; Summit NJ USA
| | - S. Hersey
- Clinical Research & Development; Celgene Corporation; Summit NJ USA
| | - A. Kilcoyne
- Clinical Research & Development; Celgene Corporation; Summit NJ USA
| | - J. Russo
- Clinical Research & Development; Celgene Corporation; Summit NJ USA
| | - K. Hudak
- Clinical Research & Development; Celgene Corporation; Summit NJ USA
| | - J. Zhang
- Clinical Research & Development; Celgene Corporation; Summit NJ USA
| | - A. Chiappella
- Division of Hematology; A.O.U. Città della Salute e della Scienza Hospital and University; Torino Italy
| | - G.S. Nowakowski
- Division of Hematology; Mayo Clinic; Rochester MN United States
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12
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Russo J, Gurvitch R, Yuen T. Assessment of Coronary Artery Obstruction Risk During Transcatheter Aortic Valve Replacement Utilising 3D Printing. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Diedrich J, Ghatnekar R, Russo J. Recent prior cesarean section delivery increases risk of failed medication abortion. Contraception 2018. [DOI: 10.1016/j.contraception.2018.07.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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14
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Nowakowski GS, Chiappella A, Witzig TE, Scott DW, Spina M, Gascoyne RD, Zhang L, Russo J, Kang J, Zhang J, Xu Y, Vitolo U. Results of real-time cell-of-origin subtype identification by gene expression profiling in patients with ABC-type diffuse large B-cell lymphoma in the phase III trial of lenalidomide plus R-CHOP vs placebo plus R-CHOP (ROBUST). J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.7548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Annalisa Chiappella
- Division of Hematology, Città della Salute e della Scienza Hospital and University, Torino, Italy
| | | | - David W. Scott
- Pathology and Lymphoid Cancer Research, British Columbia Cancer Agency, Vancouver, BC, Canada
| | | | - Randy D. Gascoyne
- Pathology and Lymphoid Cancer Research, British Columbia Cancer Agency, Vancouver, BC, Canada
| | | | | | | | | | | | - Umberto Vitolo
- Division of Hematology, Città della Salute e della Scienza Hospital and University, Torino, Italy
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Abstract
The introduction of DNA into eukaryotic cells is a powerful technique for the study of gene regulation. This requires both a technique by which genes can efficiently be introduced into cells and a recipient cell representative of the tissue under study. We have utilized a spontaneously immortalized human breast epithelial cell line, CMF-10, which is phenotypically normal for introducing a neomycin-resistant gene contained in the plasmid Homer 6 (pHo6). Three different transfection methods were tested: calcium phosphate, with and without glycerol shock, using as control NIH/3T3 cells, and strontium phosphate and electroporation. In MCF-10 cells the efficiency of calcium phosphate mediated DNA transfection, which was measured as the number of colonies growing in neomycin-containing medium, was 21 and 140 fold higher than in MCF-10 cells transfected by electroporation and strontium phosphate methods, respectively. Glycerol shock enhanced three fold transfection efficiencies. NIH/3T3 transfected cells by calcium phosphate method showed a transfection efficiency similar to that of MCF-10 cells, however, glycerol shock did not improve the efficiency. These studies revealed that calcium phosphate combined with glycerol shock is the most efficient technique for transfection of genomic DNA into human breast epithelial cells.
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Affiliation(s)
- F Basolo
- Istituto di Anatomia ed Istologia Patologica, Università di Pisa, Italy
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Baldwin MK, Bednarek PH, Russo J. Outcomes of very early medical and surgical abortion. Contraception 2017. [DOI: 10.1016/j.contraception.2017.07.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Simard T, Motazedian P, Ramirez F, Jung R, Feder J, Di Santo P, Russo J, Pourdjabbar A, Le May M, So D, Chong A, Hibbert B. PRE-CLINICAL COMPARISON OF SALINE AND CONTRAST FOR INTRAVASCULAR IMAGING USING OPTICAL COHERENCE TOMOGRAPHY. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Czuczman MS, Trněný M, Davies A, Rule S, Linton KM, Wagner-Johnston N, Gascoyne RD, Slack GW, Brousset P, Eberhard DA, Hernandez-Ilizaliturri FJ, Salles G, Witzig TE, Zinzani PL, Wright GW, Staudt LM, Yang Y, Williams PM, Lih CJ, Russo J, Thakurta A, Hagner P, Fustier P, Song D, Lewis ID. A Phase 2/3 Multicenter, Randomized, Open-Label Study to Compare the Efficacy and Safety of Lenalidomide Versus Investigator's Choice in Patients with Relapsed or Refractory Diffuse Large B-Cell Lymphoma. Clin Cancer Res 2017; 23:4127-4137. [PMID: 28381416 PMCID: PMC8171498 DOI: 10.1158/1078-0432.ccr-16-2818] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [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: 11/09/2016] [Revised: 12/16/2016] [Accepted: 03/31/2017] [Indexed: 12/19/2022]
Abstract
Purpose: Randomized, multicenter, open-label, phase 2/3 trial investigating lenalidomide versus investigator's choice (IC) in relapsed/refractory diffuse large B-cell lymphoma (DLBCL).Experimental Design: Patients with DLBCL who received ≥2 prior therapies were stratified by DLBCL subtype [germinal center B-cell (GCB) vs. non-GCB; determined by immunohistochemistry (IHC)] and then randomized 1:1 to lenalidomide (25 mg/day, 21 days of 28-day cycle) or IC (gemcitabine, rituximab, etoposide, or oxaliplatin). Crossover to lenalidomide was permitted for IC-treated patients with radiologically confirmed progressive disease. The primary endpoint was overall response rate (ORR). Progression-free survival (PFS), overall survival, and subtype analysis [GCB vs. activated B-cell (ABC)] using gene expression profiling (GEP) were exploratory endpoints.Results: Stage 1: 102 DLBCL patients (by IHC: non-GCB, n = 54; GCB, n = 48) received ≥1 dose of lenalidomide or IC. Hematologic treatment-emergent adverse events with lenalidomide versus IC included neutropenia (42.6%; 36.4%), anemia (33.3%; 47.3%), thrombocytopenia (24.1%; 43.6%), and leukopenia (5.6%; 12.7%), respectively. Overall, lenalidomide-treated patients had an ORR of 27.5% versus 11.8% in IC (ORRs were similar regardless of IHC-defined DLBCL subtype). Median PFS was increased in patients receiving lenalidomide (13.6 weeks) versus IC (7.9 weeks; P = 0.041), with greater improvements in non-GCB patients (15.1 vs. 7.1 weeks, respectively; P = 0.021) compared with GCB (10.1 vs. 9.0 weeks, respectively; P = 0.550).Conclusions: The clinical benefit of lenalidomide monotherapy in DLBCL patients was more evident in the non-GCB subtype. Exploratory analyses suggest that this preferential benefit was more pronounced in the GEP-defined ABC population, demonstrating a need for additional studies of lenalidomide in DLBCL using GEP subtyping. Clin Cancer Res; 23(15); 4127-37. ©2017 AACR.
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Affiliation(s)
| | - Marek Trněný
- Department of Hematology, Charles University Hospital, Prague, Czech Republic
| | - Andrew Davies
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Simon Rule
- Department of Haematology, Derriford Hospital, Plymouth, United Kingdom
| | - Kim M Linton
- Division of Molecular and Clinical Cancer Sciences, The Christie Foundation Trust, Manchester, United Kingdom
| | - Nina Wagner-Johnston
- Division of Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Randy D Gascoyne
- Centre for Lymphoid Cancers, BC Cancer Agency, Vancouver, British Columbia, Canada
| | - Graham W Slack
- Centre for Lymphoid Cancers, BC Cancer Agency, Vancouver, British Columbia, Canada
| | - Pierre Brousset
- Laboratoire D'Anatomie Pathologique, Centre Hospitalier Universitaire Purpan, Toulouse, France
| | - David A Eberhard
- Department of Pathology/Laboratory Medicine and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, North Carolina
| | | | - Gilles Salles
- Hematology Department, Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre-Benite, France
| | - Thomas E Witzig
- Departments of Laboratory Medicine and Pathology and Hematology, Mayo Clinic, Rochester, Minnesota
| | - Pier Luigi Zinzani
- Institute of Hematology and Medical Oncology, University of Bologna, Bologna, Italy
| | - George W Wright
- Biometric Research Branch, Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Louis M Staudt
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Yandan Yang
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - P Mickey Williams
- Molecular Characterization Laboratory, Frederick National Laboratory for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - Chih-Jian Lih
- Molecular Characterization and Clinical Assay Development Laboratory, Leidos Biomedical Research Inc. and Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | | | | | | | | | - Dale Song
- Celgene Corporation, Summit, New Jersey
| | - Ian D Lewis
- Divison of Haematology, Royal Adelaide Hospital and University of Adelaide, Adelaide, Australia
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Chiappella A, Witzig T, Vitolo U, Gascoyne R, Russo J, Amoroso B, Hudak K, Ogunkanmi A, Xu Y, Ruiz W, Singh S, Nowakowski G. ROBUST: PHASE III RANDOMIZED STUDY OF LENALIDOMIDE/R-CHOP VS PLACEBO/R-CHOP IN UNTREATED ABC-TYPE DIFFUSE LARGE B-CELL LYMPHOMA AND FEASIBILITY OF CELL OF ORIGIN SUBTYPING. Hematol Oncol 2017. [DOI: 10.1002/hon.2440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- A. Chiappella
- Division of Hematology; Azienda Ospedaliera Universitaria Città della Salute e della Scienza di Torino; Torino Italy
| | - T.E. Witzig
- Division of Hematology; Mayo Clinic; Rochester MN USA
| | - U. Vitolo
- Division of Hematology; Azienda Ospedaliera Universitaria Città della Salute e della Scienza di Torino; Torino Italy
| | - R. Gascoyne
- Pathology and Lymphoid Cancer Research; British Columbia Cancer Agency; Vancouver BC Canada
| | - J. Russo
- Hematology/Oncology; Celgene Corporation; Summit NJ USA
| | - B. Amoroso
- Hematology/Oncology; Celgene Sàrl; Boudry Switzerland
| | - K. Hudak
- Hematology/Oncology; Celgene Corporation; Summit NJ USA
| | - A. Ogunkanmi
- Hematology/Oncology; Celgene Corporation; Summit NJ USA
| | - Y. Xu
- Hematology/Oncology; Celgene Corporation; Shanghai China
| | - W. Ruiz
- Clinical Research and Development; Celgene K.K.; Tokyo Japan
| | - S. Singh
- Clinical Operations; Celgene Corporation; Summit NJ USA
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Abstract
Abstract
Long non coding RNAs (lncRNAs) have been identified as regulators of the cell cycle, apoptosis, and DNA damage among other processes that if deregulated, may lead to cancer by acting as proto-oncogenes, tumor suppressor genes, and drivers of metastatic transformation. Using RNA sequencing we have identified 42 differentially expressed lncRNAs from a healthy cohort of parous vs. nulliparous women. After bioinformatics and RT-qPCR analysis, we have focused on a vaguely studied lncRNA called BC200 that is highly expressed in the nulliparous postmenopausal breast tissue. It is known that BC200 lncRNA is overexpressed in invasive and pre-invasive breast cancer; however, its functional role in the initiation and progression of breast cancer is poorly understood. In the present work we provide insight on the role of BC200 in the context of luminal and triple negative breast cancer (TNBC). We have confirmed that BC200 is highly expressed in breast cancer tissue and in widely used breast cancer cell lines such as MCF7, T47D, MDAMB231, and Hs578T. Using a lentiviral system we successfully obtained cell lines which stably express BC200. Overexpression of BC200 increases proliferation, migration, and invasion potential in vitro in the cell lines tested, specifically luminal T47D and TNBC MDAMB231. Xenograft studies performed in the mammary fat pad of female SCID mice confirm the role of BC200 as a tumor promoter. Tumors in mice injected with MDAMB231 cells overexpressing BC200 were 4.5 times bigger than tumors in the control group in only 6 weeks when injecting 1 million cells. Moreover, we have determined, using reverse transcriptase PCR targeting genes less than 200 kb from the start site of BC200, that when BC200 is overexpressed, CALM2 is downregulated in both T47D and MDAMB231 cell lines. CALM2 or Calmodulin is a calcium binding protein that plays a role in signaling pathways, cell cycle progression, proliferation, and apoptosis. Mutations in CALM2 are associated with increased risk of breast cancer. Our positive results on Cis regulation are being expanded using chromatin isolation by RNA immunoprecipitation to determine BC200's genome wide regulation.
These results demonstrate the participation of BC200 lncRNA in the progression of breast cancer. Notably, BC200 regulates nearby genes that have an implication in cancer progression. BC200, identified in the normal breast tissue of nulliparous women, not only plays a key role in breast cancer progression but also provides a new insight in the preventive role of pregnancy by the downregulation of the expression of this lncRNA in the normal parous breast. [This work was supported by the NCI (National Cancer Institute) Core Grant CA06927 to Fox Chase Cancer Center and generous support from Christian - Diane Martin, the Flyers Wives, and Joseph - Barbara Breitman to Dr. J. Russo, MD].
Citation Format: Barton M, Santucci-Pereira J, Su Y, Russo J. BC200 lncRNA is involved in the progression of triple negative breast cancer [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P1-08-06.
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Affiliation(s)
- M Barton
- Temple University School of Medicine, Philadelphia, PA; Fox Chase Cancer Center, Philadelphia, PA
| | - J Santucci-Pereira
- Temple University School of Medicine, Philadelphia, PA; Fox Chase Cancer Center, Philadelphia, PA
| | - Y Su
- Temple University School of Medicine, Philadelphia, PA; Fox Chase Cancer Center, Philadelphia, PA
| | - J Russo
- Temple University School of Medicine, Philadelphia, PA; Fox Chase Cancer Center, Philadelphia, PA
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McNamara B, Russo J, Jacobson J, Kerns J. Patient experiences with digoxin injection before dilation and evacuation: a qualitative study. Contraception 2016. [DOI: 10.1016/j.contraception.2016.07.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Reyes FP, Sánchez M, Moral E, Terradillos M, López N, Roca M, García A, Russo J. Cerebellar atrophy supporting diagnosis of alcohol dependence: A case report. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Chronic use of alcohol is a known cause of cerebellar atrophy. This finding could be a valuable diagnosis support when there are not other information sources. In this case report, we describe a 65-year-old male patient who was referred from primary care to specialized consultation because a depressive syndrome it was unresponsive to treatment with desvenlafaxine and lorazepam. In psychopathological exploration we found overvalued ideas of suffering some kind of injury and damage by the family, which oriented the diagnostic hypothesis of delusional disorder with secondary mood symptoms, although the clinical suspicion of abuse of alcohol was proposed as a differential diagnosis. The continuing minimization and denial of consumption by the patient as well as their reluctance to incorporate an external informant made that the workup was a key element to elucidate the diagnosis. We found a discrete increase in transaminases, gamma glutamyl transferase and alkaline phosphatase. Magnetic resonance imaging showed cerebellar atrophy (vermian and, in a lesser extent, in both hemispheres). Once the patient was confronted with these results, he agreed to disclose his problem, which fulfilled alcohol dependence criteria. After that, he accepted to initiate treatment and detoxification in a specialized unity.ConclusionsAlthough psychiatric diagnosis is based on the clinical features and the exclusion of associated medical conditions, in this case the workup provided support to our clinical suspicion, favouring recognition of the problem and willingness to treatment by the patient.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Pavez F, Alcántara A, López N, García A, Sánchez M, Roca M, Moral E, Russo J. Posterior vitreous detachment and electroconvulsive therapy: Insights from a case. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.2049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
A case of bilateral posterior vitreous detachment after electroconvulsive therapy (ECT) has been reported previously in the literature. There is not enough evidence about ocular side effects of this treatment. The literature supports a slight increase in intraocular pressure (IOP), although no ocular complications have been reported in normal, glaucomatous or postsurgical eyes. In this case report, we describe a 73-year-old female patient suffering a recurrent depressive disorder, who was admitted to acute psychiatric unit because a treatment-resistant major depressive episode (after an adequate trial of antidepressant drugs and transcranial magnetic stimulation) and clinical suspicion of visual delusions by her reference psychiatrist. The nonpsychiatric history consisted of hypertension, glaucoma and ulcerative colitis in treatment with azathioprine and mesalazine. After a careful examination in the emergency room, we consulted to ophthalmologist because miodesopsias and glaucoma history. The IOP was normal, but a bilateral posterior vitreous detachment (PVD) was identified. Because this entity is not an absolute contraindication for ECT, and there is scarce evidence, we informed the patient and her family. After that, and through informed consent, we decided to undergo ECT. After fourteen sessions, the patient could be discharged because significant clinical benefit and no ocular complications. Outpatient continuation ECT was indicated.ConclusionsECT can be a safe treatment choice in cases of PVD.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Pavez F, López N, Saura E, Roca M, García A, Russo J, Sánchez M, Moral E. Addictive behaviour and bariatric surgery: Case report and literature review. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Even though the scientific evidence supports the benefits of bariatric surgery, its indications and contraindications must be continually revised in order to avoid psychiatric complications. Substance use is more common in patients subjected to bariatric surgery than in the general population. There are reports of increased incidence of alcohol abuse in patients after bariatric surgery.ObjectiveTo review the available evidence, after treat the case of a 50-year-old man with addiction history whose addictive behaviour worsened after undergoing bariatric surgery, with decreased tolerance to alcohol effect and increase of the intake, as well as changes in the graduation of alcohol used (including antiseptic). As a result, a dangerous revolving door that led him to repeated admissions, including Intensive Care Unit.ResultsThe case is consistent with the literature that suggests that there is an increased risk of later alcohol-related problems after bariatric surgery. This risk is higher several years post surgery, in patients with previous history of problems related to alcohol, young, men, and Roux-en-Y Gastric Bypass procedure.ConclusionsThe indications for bariatric surgery should thoroughly consider the history of addiction, an adequate assessment of the patient's mental status and psychoeducation about the possible psychiatric side effects, in order to develop preventive strategies.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Lovell S, Bangarusamy P, Russo J. Postabortion LARC method retention among surgical abortion patients. Contraception 2015. [DOI: 10.1016/j.contraception.2015.06.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kohn J, Russo J. Research gaps in abortion safety: results of a survey of Planned Parenthood medical directors. Contraception 2015. [DOI: 10.1016/j.contraception.2015.06.176] [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: 11/29/2022]
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Peirano G, Russo J, Mammana G, Bertolino M, Vega F, Pastrana T, Ruggiero R, Armesto A, Vignaroli E, Camerano G, Dran G. 1520 Methadona as a first-line treatment for cancer pain in a palliative care unit in a developing country. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30610-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Russo J, Madec L. Linking immune patterns and life history shows two distinct defense strategies in land snails (gastropoda, pulmonata). Physiol Biochem Zool 2013; 86:193-204. [PMID: 23434779 DOI: 10.1086/669482] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Life history integration of the defense response was investigated at intra- and interspecific levels in land snails of the family Helicidae. Two hypotheses were tested: (i) fitness consequences of defense responses are closely related to life history traits such as size at maturity and life span; (ii) different pathways of the immune response based on "nonspecific" versus "specific" responses may reflect different defense options. Relevant immune responses to a challenge with E. coli were measured using the following variables: blood cell density, cellular or plasma antibacterial activity via reactive oxygen species (ROS) level, and bacterial growth inhibition. The results revealed that the largest snails did not exhibit the strongest immune response. Instead, body mass influenced the type of response in determining the appropriate strategy. Snails with a higher body mass at maturity had more robust plasma immune responses than snails with a lower mass, which had greater cell-mediated immune responses with a higher hemocyte density. In addition, ROS appeared also to be a stress mediator as attested by differences between sites and generations for the same species.
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Affiliation(s)
- Jacqueline Russo
- Université de Rennes 1, Unité Mixte de Recherche 6553 ECOBIO, Campus de Beaulieu, Rennes Cedex, France.
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Calaf G, Zhang P, Alvarado M, Estrada S, Russo J. C-ha-ras enhances the neoplastic transformation of human breast epithelial-cells treated with chemical carcinogens. Int J Oncol 2012; 6:5-11. [PMID: 21556493 DOI: 10.3892/ijo.6.1.5] [Citation(s) in RCA: 3] [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: 11/05/2022] Open
Abstract
The present study was carried out with the purpose of analyzing the additive effect of c-Ha-ras oncogene on tumorigenesis in human breast epithelial cells (HBEC) treated with chemical carcinogens. A human breast epithelial cell (HBEC) line, MCF-10F, previously treated with dimethylbenz(a) anthracene (DMBA) and benzo(a)pyrene (BP) was used in these studies. The MCF-10F cells, DMBA and/or BP-transformed cells originated from the clones D3-1 and BP1 which were transfected with the plasmid pH06T1 containing the human T24 mutated c-Ha-ras oncogene and termed MCF-10F-Tras, D3-1-Tras and BP1-Tras, respectively. Whereas the c-Ha-ras transfected cells presented altered morphology, increased anchorage independent growth in agar-methocel, invasiveness and tumorigenicity, the MCF-10F cells, the clones D3 and BP1 were not tumorigenic. Importantly, whereas MCF-10F-Tras was slightly tumorigenic, the D3-1-Tras and BP1-Tras transfected cells were 100% tumorigenic in the SCID mice; and the tumors thus obtained were poorly differentiated carcinomas. DNA fingerprinting confirmed that the tumors derived originated from the cell lineage used. It was concluded that c-Ha ras induces an additive effect on the expression of tumorigenesis in human breast epithelial cell line MCF-10F treated with chemical carcinogens. Our work provide a model for analyzing the role of c-Ha-ras in human breast cancer.
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Affiliation(s)
- G Calaf
- FOX CHASE CANC CTR,PHILADELPHIA,PA 19111
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Kocdor MA, Kocdor H, Pereira JS, Vanegas JE, Russo IH, Russo J. Progressive increase of glucose transporter-3 (GLUT-3) expression in estrogen-induced breast carcinogenesis. Clin Transl Oncol 2012; 15:55-64. [PMID: 23054751 DOI: 10.1007/s12094-012-0882-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Accepted: 03/19/2012] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Increased glucose uptake and glycolysis are main metabolic characteristics of malignant cells. A family of glucose transporters (GLUTs) facilitates glucose movement across the plasma membranes in a tumor-specific manner. Glucose transporter-1 (GLUT-1), GLUT-3 and recently GLUT-12, have been previously shown in breast cancer cells and are found to be associated with poor prognosis. In addition, it has been shown that estrogen plays critical roles in GLUT regulation, however, the stage-specific GLUT regulation of mammary carcinogenesis is unclear. METHODS GLUT expression patterns were investigated in an in vitro-in vivo progressive, estrogen-induced, mammary carcinogenesis model which consisted of four cell lines, with same genetic background. In this model, different stages of tumor initiation and progression are represented, MCF-10F being the normal stage, E2 cells the transformed stage by estrogen, C5 cells, the invasive stage, and T4 cells the tumorigenic stage. In addition, loss of ductulogenesis and solid mass formation in collagen matrix and invasiveness of the cells were counted. RESULTS Real time PCR showed that GLUT1 expression was downregulated in MCF10F after treatment with 17β-estradiol (E2), and in the invasive cell type (C5), but not in the tumor cells (T4), which had no changes compared to MCF10F. C5 and T4 cells showed the highest rate of GLUT-3 expression. These cells were also found to be associated with loss of ductulogenesis, solid mass formation and higher invasive capacity, whereas, GLUT-12 was downregulated in C5 and T4 cells. CONCLUSION Estrogen-induced malignant transformation is associated with remarkable and progressive GLUT-3 expression, GLUT-1 re-expression at further stages, as well as GLUT-12 downregulation.
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Affiliation(s)
- M A Kocdor
- Department of Surgery, School of Medicine, Dokuz Eylul University, Inciralti, Izmir, Turkey.
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Hu Y, Russo I, Ao X, Russo J. Mammary-derived growth inhibitor (MDGI) cloned from human breast epithelial cells is expressed in fully differentiated lobular structures. Int J Oncol 2012; 11:5-11. [PMID: 21528173 DOI: 10.3892/ijo.11.1.5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Mammary-derived growth inhibitor (MDGI), an inducer of rodent mammary differentiation and suppressor of human breast cancer cell growth, has been cloned from bovine and rodent mammary glands. The present study reports the cloning of MDGI from cultured human breast epithelial cells (HBEC-MDGI) as a cDNA fragment encoding a protein of 133 amino acids identical to heart fatty acid binding protein. Expression of HBEC-MDGI, as detected by in situ hybridization in paraffin-embedded normal breast tissues, was maximal in the most differentiated lobules type 4, low in the moderately differentiated lobules type 3, and absent in the least differentiated lobules types 1 and 2. HBEC-MDGI was not expressed in breast tissues that contained ductal hyperplasia, carcinoma in situ or invasive carcinomas. Our results indicate that HBEC-MDGI is a biomarker of lobular differentiation in the human breast, and its expression is silenced in poorly differentiated lobules as well as in the early and late stages of breast cancer progression.
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Affiliation(s)
- Y Hu
- FOX CHASE CANC CTR,BREAST CANC RES LAB,PHILADELPHIA,PA 19111
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Barnabas N, Moraes R, Calaf G, Estrada S, Russo J. Role of p53 in mcf-10f cell immortalization and chemically-induced neoplastic transformation. Int J Oncol 2012; 7:1289-96. [PMID: 21552963 DOI: 10.3892/ijo.7.6.1289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The present study was undertaken to determine the role of the tumor suppressor gene p53 in the transformation of the human breast epithelial cell (HBEC) line MCF-10F treated with chemical carcinogens in vitro. MCF-10F is a spontaneously immortalized diploid HBEC line, derived from a mortal cell strain designated MCF-10M. MCF-10F cells became neoplastically transformed by in vitro treatment with the chemical carcinogens 7,12-dimethylbenz(a)anthracene (DMBA) and benzo(a)pyrene (BP). DMBA and BP-treated cells gave rise to clones D3, D3-1, BP1 and BP1-E, respectively, all of which expressed colony formation in agar-methocel and high chemoinvasion index. BP1-E cells, derived from BP1, were tumorigenic in severe combined immunodeficient (SCID) mice. We designed this work utilizing this model in which isolated clones of cells express different stages of progression to neoplastic transformation for determining whether any specific phenotype was associated with alteration in the p53 tumor supressor gene. For this purpose, Southern blot, Northern blot, single-strand conformation polymorphism (SSCP) and DNA sequencing were used to detect mutations in the highly conserved exons 5-9 of the p53 gene. Whereas no changes were detected in any of the cells tested by Southern and Northern blot, SSCP analysis showed a conformational shift in exon 7 in the MCF-10F cell line, and in clones BP1, BP1-E, D3, and D3-1, derived from DMBA and BP treated cells, respectively. This shift was absent in MCF-10M cells, the mortal cells from which the MCF-10F immortal cells were derived, and in the placental DNA used as control. Sequence analysis using asymmetric PCR-amplified products of exon 7 and an antisense primer revealed an insertional mutation of thymine at codon 254 in MCF-10F cells and in transformed cells, but not in MCF-10M. These data indicate that the emergence of the immortalized phenotype was associated with a mutation of p53. DMBA- or BP-treatment did not induce additional changes in the p53 gene. The fact that the precursor of the immortalized MCF-10F did not present changes in p53, may indicate that the alteration of this tumor suppressor gene could be associated with the process of cell immortalization; this, in turn, might facilitate the neoplastic transformation of the cells by chemical carcinogens.
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Affiliation(s)
- N Barnabas
- FOX CHASE CANC CTR,BREAST CANC RES LAB,PHILADELPHIA,PA 19111
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Affiliation(s)
- Uzma Farooq
- Kendall Medical Laboratory, Coral Gables, FLDepartment of Dermatology and Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, FLDepartment of Pathology and Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FLDepartment of Dermatology, and Cutaneous Surgery, Miller School of Medicine, University of Miami, FL, USA
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Gariepy A, Chen B, Hohmann H, Achilles S, Russo J, Creinin M. Reluctance to receive optional feticidal digoxin. Contraception 2011. [DOI: 10.1016/j.contraception.2011.05.044] [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: 12/01/2022]
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Abstract
Immune defenses have been shown to be heavily involved in the evolution of physiological trade-offs. In this study, we compared the internal defense systems in two subspecies of the land snail Cornu aspersum that exhibit contrasting life-history strategies. The "fast-living" Cornu aspersum subsp. aspersa is widespread throughout the world, especially in ecosystems disturbed by man, whereas natural populations of the giant Cornu aspersum subsp. maxima, characterized by a longer life span, are present only in north Africa. Snails were experimentally challenged with Escherichia coli; the measurements used to assess their internal defense for cell- and humoral-mediated immune responses were bacterial clearance, hemocyte density, reactive oxygen species (ROS) production, and plasma antibacterial activity. Both subspecies showed a similar ability to clear bacteria from their hemolymph; however, they varied in the robustness of different individual immune components. Cornu aspersum aspersa had higher ROS activity than did C. a. maxima and lower plasma bactericidal activity. These results suggest that ecological factors can sculpt the immune response. One interpretation is that shorter life span selects for immune defenses such as ROS that, although effective, can cause long-term damage. Such different immune patterns obviously entail various costs involved in the strong intraspecific variation of life-history trade-offs we previously observed. We also have to consider that such variation might be related to intraspecific differences in the relative strength of resistance and tolerance mechanisms.
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Affiliation(s)
- Jacqueline Russo
- Université de Rennes 1, Unité Mixte de Recherche 6553 ECOBIO, Campus de Beaulieu, Bâtiment 14A, Rennes Cedex, France.
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Russo J, Tavares JM, Teixeira PIC, da Gama MMT, Sciortino F. Re-entrant phase behaviour of network fluids: A patchy particle model with temperature-dependent valence. J Chem Phys 2011; 135:034501. [DOI: 10.1063/1.3605703] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Russo J, Tavares JM, Teixeira PIC, Telo da Gama MM, Sciortino F. Reentrant phase diagram of network fluids. Phys Rev Lett 2011; 106:085703. [PMID: 21405587 DOI: 10.1103/physrevlett.106.085703] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Revised: 11/28/2010] [Indexed: 05/30/2023]
Abstract
We introduce a microscopic model for particles with dissimilar patches which displays an unconventional "pinched" phase diagram, similar to the one predicted by Tlusty and Safran in the context of dipolar fluids [Science 290, 1328 (2000)]. The model-based on two types of patch interactions, which account, respectively, for chaining and branching of the self-assembled networks-is studied both numerically via Monte Carlo simulations and theoretically via first-order perturbation theory. The dense phase is rich in junctions, while the less-dense phase is rich in chain ends. The model provides a reference system for a deep understanding of the competition between condensation and self-assembly into equilibrium-polymer chains.
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Affiliation(s)
- J Russo
- Dipartimento di Fisica, Università di Roma La Sapienza, Piazzale Aldo Moro 2, 00185 Roma, Italy
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Abstract
There is growing concern that estrogenic environmental compounds that act as endocrine-disrupting chemicals might potentially have adverse effects on hormone-sensitive organs such as the breast. This concern is further fueled by evidence indicating that natural estrogens, specifically 17beta-estradiol, are important factors in the initiation and progression of breast cancer. We have developed an in vitro-in vivo model in which we have demonstrated the carcinogenicity of E2 in human breast epithelial cells MCF-10F. Hypermethylation of NRG1, STXBP6, BMP6, CSS3, SPRY1, and SNIP were found at different progression stages in this model. The use of this powerful and unique model has provided a tool for exploring whether bisphenol A and butyl benzyl phthalate have relevance in the initiation of breast cancer. These studies provide firsthand evidence that the natural estrogen 17beta-estradiol and xenoestrogenic substances like bisphenol A are able to induce neoplastic transformation in human breast epithelial cells.
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Affiliation(s)
- S.V. Fernandez
- Breast Cancer Research Laboratory, Fox Chase Cancer Center, Philadelphia, PA, 19111, USA
| | - J. Russo
- Breast Cancer Research Laboratory, Fox Chase Cancer Center, Philadelphia, PA, 19111, USA
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Kocdor M, Kocdor H, Pereira J, Vanegas J, Russo I, Russo J. Stage-Specific Expressions of GLUT-1, GLUT-3 and GLUT-12 in Estrogen-Induced Breast Cancer. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-5152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Increased glucose uptake and glycolysis are main metabolic characteristics of malignant cells. The glucose transporter-1 (GLUT-1), GLUT-3 and recently GLUT-12 have been shown in breast cancer cells in which estrogen play a critical role on its regulation and also associated with poor prognosis. However. the stage-specific GLUT regulation during the process of mammary carcinogenesis is unclear. In the present study we are aiming to study the GLUT expression pattern in an in vitro-in vivo model of estrogen induced carcinogenesis in which the human breast epithelial cell line MCF-10F is considered the normal counterpart E2 the transformed, C5 the invasive and T4 the tumorigenic stage. The gene expression of GLUTs was correlated with the ductulogenic pattern in a collagen matrix and the invasive properties using the Boyden chamber The RT-PCR data showed that the GLUT1 expression was downregulated in MCF10F after the treatment with 17β-estradiol (E2) and in the invasive cell type (C5), but not in the tumor cells (T4), which had no changes compared to MCF10F. C5 and T4 cells showed the highest rate of GLUT-3 expression. These cells were also found to be associated with loss of ductulogenesis, solid mass formation and higher invasion capacity. Whereas, GLUT-12 is downregulated in invasive and tumorigenic cells. We conclude that the estrogen-induced malignant transformation is associated with remarkably GLUT-3 expression, GLUT-1 re-expression at further stages, as well as GLUT-12 downregulation for transformed MCF-10F cells. (This work was supported by grant R21 ES015894from the NIEHS)
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 5152.
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Abstract
We have developed a new approach for breast cancer prevention, capitalizing in the preventive effect of early first full-term pregnancy, hormonally induced differentiation and our ability to identify specific genomic signatures that allow us to predict risk reduction. Early pregnancy imprints in the breast permanent genomic changes or a 'signature' that reduces the susceptibility of this organ to cancer. At cellular level, what we have achieved is the shifting of the Stem Cell 1 population, highly susceptible to cancer, to a population of Stem Cell 2 that is refractory to carcinogenesis. In a case-control study, we have compared the gene expression profile in normal breast tissue from nulliparous and parous postmenopausal women with (case) and without (control) breast cancer. We have determined that early first full-term pregnancy induces a specific genomic signature in the postmenopausal breast that is the biomarker for the Stem cell 2. The Stem cell 2 contains specific genes controlling transcription, RNA processing, immune response, apoptosis and DNA repair. We have further detected in the plasma, using an ELISA assay, the proteins coded by the gene signature. We are developing clinical trials to demonstrate the proof of the principle that r-hCG can induce in the human breast a genomic signature of the Stem cell 2. This is a concept that challenges the currently available chemopreventive agents that need to be given for extended periods for maintaining the suppression of a specific metabolic pathway or the abrogation of the function of an organ.
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Affiliation(s)
- J Russo
- Breast Cancer Research Laboratory, Fox Chase Cancer Center, Philadelphia, PA, USA
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Gutiérrez PJ, Russo IH, Russo J. Cancer Behavior: An Optimal Control Approach. Int J Immunol Stud 2009; 1:31-65. [PMID: 22247736 PMCID: PMC3256631 DOI: 10.1504/ijis.2009.023560] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
With special attention to cancer, this essay explains how Optimal Control Theory, mainly used in Economics, can be applied to the analysis of biological behaviors, and illustrates the ability of this mathematical branch to describe biological phenomena and biological interrelationships. Two examples are provided to show the capability and versatility of this powerful mathematical approach in the study of biological questions. The first describes a process of organogenesis, and the second the development of tumors.
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Affiliation(s)
- Pedro J. Gutiérrez
- Corresponding author: (P.J. Gutiérrez). Postal address: Dpto. de Fundamentos del Análisis Económico e Historia e Instituciones Económicas, Facultad de CC.EE. y EE., Universidad de Valladolid, Avda. Valle Esgueva, 6, 47011 Valladolid, SPAIN
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Balogh GA, Russo IH, Spittle C, Heulings R, Russo J. Immune-surveillance and programmed cell death-related genes are significantly overexpressed in the normal breast epithelium of postmenopausal parous women. Int J Oncol 2007; 31:303-12. [PMID: 17611686 DOI: 10.3892/ijo.31.2.303] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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] [Indexed: 11/06/2022] Open
Abstract
Endocrine and reproductive influences significantly affect the lifetime risk of breast cancer. Nulliparity is one of the most firmly established risk factors for breast cancer, whereas early full-term pregnancy and parity confer a significant protection. The breast attains its maximum development during pregnancy and lactation. After menopause the breast regresses in both nulliparous and parous women containing lobular structures designated lobules type 1 (Lob 1). We have postulated that the degree of differentiation acquired through early pregnancy changes the 'genomic signature' that differentiates the Lob 1 from the early parous women from that of the nulliparous women by shifting the Stem cell 1 to a Stem cell 2, making this the mechanism of protection conferred by early full-term pregnancy. In order to elucidate the molecular pathways through which pregnancy exerts a protective effect, we have analyzed the genomic profile of Lob 1 present in reduction mammoplasty specimens obtained from parous and nulliparous postmenopausal women. The genes differentially expressed are related to immune-surveillance, DNA repair, programmed cell death, transcription, and chromatin structure/activators/co-activator. In the present study we performed real-time RT-PCR using a low-density array or a microfluid card for genes related to the immune system and programmed cell death, using 18S as an internal control [TaqMan(R) Low Density Array Human Immune Panel (Applied Biosystems)]. Breast epithelial cells from parous women significantly overexpressed 17 out of 20 genes (p<0.001) with respect to the nulliparous breast. BCL2-associated X protein, Complement component 3, CD45 antigen, glyceraldehyde-3-phosphate dehydrogenase, granulysin, and chemokine (C-C motif) ligand 19 were expressed more than 30-fold with respect to nulliparous breast cells. Only three out of 20 genes [selectin P (granule membrane protein 140 kDa, antigen CD62), Fas (TNF receptor superfamily, member 6) and chemokine (C-X-C motif) ligand 11], were downregulated in parous breast with respect to nulliparous breast cells. The data lead us to conclude that an early pregnancy, by shifting the Stem cell 1 to Stem cell 2, makes the latter more easily recognized by the immune-surveillance system, which initiates the programmed cell death pathway if exposure to toxic or carcinogenic agents occurs.
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Affiliation(s)
- G A Balogh
- Breast Cancer Research Laboratory, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
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Russo J, Robinson R, Oldham MJ. Effects of cartilage rings on airflow and particle deposition in the trachea and main bronchi. Med Eng Phys 2007; 30:581-9. [PMID: 17719260 DOI: 10.1016/j.medengphy.2007.06.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2006] [Revised: 05/22/2007] [Accepted: 06/18/2007] [Indexed: 11/20/2022]
Abstract
In most computational fluid dynamic (CFD) analysis of the human lung, it has been assumed that the trachea and branches of the lung have smooth walls. In order to determine if this is a valid assumption, the effects of cartilage rings on airflow and particle deposition in the lungs was determined through conducting simulations with two CFD packages, Fluent and CFX. A smooth walled model and a ringed model of the trachea and main bronchi were created based on idealized models with realistic characteristics. Turbulent velocity profiles were implemented at the inlet of the trachea to account for the laryngeal jet at 15, 30 and 60 lpm's, while random and uniform distributions of particles were injected into the airways. Deposition of particles through sedimentation and impaction were recorded and compared for each model at each flow rate. The results of this work show that the effects of cartilage rings increase with the size of particles and flow rate.
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Affiliation(s)
- J Russo
- Department of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY, United States.
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Russo J, Lefeuvre-Orfila L, Lagadic L. Hemocyte-specific responses to the peroxidizing herbicide fomesafen in the pond snail Lymnaea stagnalis (Gastropoda, Pulmonata). Environ Pollut 2007; 146:420-7. [PMID: 16930795 DOI: 10.1016/j.envpol.2006.06.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2005] [Revised: 06/26/2006] [Accepted: 06/28/2006] [Indexed: 05/11/2023]
Abstract
Responses of circulating hemocytes were studied in Lymnaea stagnalis exposed to 10, 30, 90, and 270 microg/L fomesafen for 24 and 504 h. Flow cytometry was used to quantify fomesafen-induced production of reactive oxygen species (ROS), phagocytic activity on Escherichia coli, and oxidative burst when hemocytes were challenged by E. coli or phorbol 12-myristate-13-acetate (PMA). Lysosomal membrane damage was assessed, using the neutral-red retention time (NRRT) assay. Exposure to fomesafen for 24 h resulted in increase in ROS levels and decreases in phagocytosis and the oxidative burst in PMA-stimulated hemocytes. After 504 h, intracellular levels of ROS returned to normal, but phagocytosis of E. coli was still inhibited and the associated oxidative burst significantly reduced. After both durations of exposure, decreases of NRRT indicated that lysosome membrane fragility increased with fomesafen concentration. Potential implications for the health and survival of the snails and consequences on populations are discussed.
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Affiliation(s)
- Jacqueline Russo
- UMR 6553 Ecobio CNRS Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes cedex 35042, France
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Russo J, Madec L. Haemocyte apoptosis as a general cellular immune response of the snail, Lymnaea stagnalis, to a toxicant. Cell Tissue Res 2007; 328:431-41. [PMID: 17252246 DOI: 10.1007/s00441-006-0353-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2006] [Accepted: 10/13/2006] [Indexed: 11/24/2022]
Abstract
The effects of a xenobiotic on the circulating haemocytes of Lymnaea stagnalis were investigated after short-term (24 h, 96 h) and long-term (504 h) exposure of snails to environmental concentrations. Fomesafen, a pro-oxidant generator led to the activation of the haemocyte apoptotic program by promoting reactive oxygen species (ROS). Cells entering apoptosis underwent a series of events, both on the plasma membrane and in the mitochondria; these events were quantified by flow cytofluorometry. The data showed a loss of mitochondrial transmembrane potential (Deltapsim), which was dose-dependent and time-dependent and related to an increased release of superoxide anions. The phosphatidylserine that was exposed at the outer plasma membrane was not related to the disruption of either ROS or Deltapsim but was strongly correlated with the haemocyte concentration (total haemocyte count). This cascade of apoptotic processes occurred in a dose-independent manner and was not strengthened over time. The increase of circulating haemocytes depended upon the life span of the cells and might have reflected either facilitated cell turn-over or the accompanying presence of haemocytes phagocytosing apoptotic cells.
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Affiliation(s)
- Jacqueline Russo
- UMR 6553 Ecobio, Equipe Evolution des Histoires de Vie, CNRS Université de Rennes1, Campus de Beaulieu, Avenue du Général Leclerc, Rennes, France.
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Balogh GA, Russo IH, Balsara BR, Russo J. Detection of chromosomal aberrations by comparative genomic hybridization during transformation of human breast epithelial cells in vitro. Int J Oncol 2006; 29:877-81. [PMID: 16964383 DOI: 10.3892/ijo.29.4.877] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Breast cancer is the most frequent malignancy in women. It is well recognized that tumorigenesis is a multistep process resulting from the accumulation of sequential genetic alterations. In breast cancers LOH has been described on one or both arms of multiple chromosomes. Comparative genomic hybridization (CGH) analysis was performed to identify chromosomal imbalances in the breast epithelial cells (HBEC). We have used a human in vitro-in vivo system in which the environmental carcinogen benz(a)pyrene (BP) and the c-Ha-ras oncogene were utilized for inducing in vitro transformation of HBEC. Immortal MCF-10F cells were treated with BP which resulted in the transformed cell line BP-1 that was further enhanced by transfection with the c-Ha-ras to generate the cell line BP-1-Tras. This cell line is tumorigenic when injected in severe combined immunodeficient (SCID) mice, generating the tumor cell line BP-1-Tras T J#4. Our comparative genomic hybridization analysis indicates that the most overrepresented segment after cell transformation and in the BP-1, BP-1-Tras and in the tumor cell line were 1p (80%), 5q21-ter (80%), 8q24.1 (90%) and Xq27-28 (60%). DNA sequence amplification at 10p14-15 was observed in BP-1-Tras T J#4 cells. Allelic losses of chromosome 4, 8p11-21 and 15q11-12, occur after cell transformation and are maintained consistently during tumorigenesis.
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Affiliation(s)
- G A Balogh
- Breast Cancer Research Laboratory, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
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Abstract
Estrogens are considered to play a major role in promoting the proliferation of both the normal and the neoplastic breast epithelium. Their role as breast carcinogens has long been suspected and recently confirmed by epidemiological studies. Three major mechanisms are postulated to be involved in their carcinogenic effects: stimulation of cellular proliferation through their receptor-mediated hormonal activity, direct genotoxic effects by increasing mutation rates through a cytochrome P450-mediated metabolic activation, and induction of aneuploidy. Recently it has been fully demonstrated that estrogens are carcinogenic in the human breast by testing in an experimental system the natural estrogen 17beta-estradiol (E(2)) by itself or its metabolites 2-hydroxy, 4-hydroxy, and 16-a-hydroxy-estradiol (2-OH-E(2), 4-OH-E(2), and 16-alpha-OH E(2)), respectively, by inducing neoplastic transformation of human breast epithelial cells (HBEC) MCF-10F in vitro to a degree at least similar to that induced by the chemical carcinogen benz(a)pyrene (BP). Neither Tamoxyfen (TAM) nor ICI-182,780 abrogated the transforming efficiency of estrogen or its metabolites. The E(2) induced expression of anchorage independent growth, loss of ductulogenesis in collagen, invasiveness in Matrigel, is associated with the loss of 9p11-13 and only invasive cells that exhibited a 4p15.3-16 deletion were tumorigenic. Tumors were poorly differentiated ER-alpha and progesterone receptor negative adenocarcinomas that expressed keratins, EMA and E-cadherin. The E(2) induced tumors and tumor-derived cell lines exhibited loss of chromosome 4, deletions in chromosomes 3p12.3-13, 8p11.1-21, 9p21-qter, and 18q, and gains in 1p, and 5q15-qter. The induction of complete transformation of the human breast epithelial cell MCF-10F in vitro confirms the carcinogenicity of E(2), supporting the concept that this hormone could act as an initiator of breast cancer in women. This model provides a unique system for understanding the genomic changes that intervene for leading normal cells to tumorigenesis and for testing the functional role of specific genomic events taking place during neoplastic transformation.
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Affiliation(s)
- J Russo
- Breast Cancer Research Laboratory, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111, USA.
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Abstract
To investigate the cause of acidosis following release of an aortic cross-clamp, we measured tissue PCO2 using a transcutaneous (TC) CO2 monitor placed below the level of the cross-clamp in 10 patients undergoing aortic arch surgery. Following placement of the aortic cross-clamp, the TC CO2 value from the lower extremity increased from 41 +/- 4 to 92 +/- 41, whereas there was no change in the TC CO2 value from the upper extremity. With release of the cross-clamp, end-tidal CO2 increased by 6.2 +/- 1.9 mmHg, the upper TC CO2 increased by 8.4 +/- 4.8 mmHg, and the lower extremity TC CO2 value returned to baseline. During cross-clamping, there was an increase in the base deficit of 4.3 +/- 2.9 when comparing the baseline arterial blood gas value with the one obtained after cross-clamp release (p = 0.0004). These data demonstrate that the acidosis occurring during aortic cross-clamping is a mixed metabolic and hypercarbic acidosis. Appropriate treatment includes the provision of adequate minute ventilation to ensure CO2 removal and the use of sodium bicarbonate based on the degree of metabolic acidosis demonstrated by arterial blood gas analysis.
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Affiliation(s)
- J D Tobias
- Department of Anesthesiology, 3W4OH, University of Missouri, One Hospital Drive, Columbia, MO 65212, USA.
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Abstract
The motor threshold is an important parameter in selecting the treatment intensity of patients undergoing transcranial magnetic stimulation. The large variance in magnitude of motor evoked responses has forced clinicians to perform many trials and average the results to find a repeatable value for motor threshold. Our objective is to investigate the source of the variance in amplitude. Four clinically healthy adult males participated in an EEG and EMG during transcranial magnetic stimulation of the left motor cortex, 100% motor threshold, 0.1 Hz. Per our hypothesis, a significant negative correlation of .22 was found between the amplitude of the motor evoked potential and the power in the high alpha frequency band during the pre-stimulus period (p < .001). In addition, a significant positive correlation of .17 was found between the motor evoked potential (MEP) amplitude and the gamma band (p < .001). The strongest correlation of .27 (p < .001) was found between the MEP amplitude and the ratio of the power in the low gamma to high alpha band. We conclude that the gamma to alpha power ratio may be a useful indicator of cortical excitability.
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Affiliation(s)
- P Zarkowski
- Department of Psychiatry and Behavioral Sciences, Harborview Medical Center, University of Washington, Seattle, Washington, USA.
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