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Tseng L, Al‐Saidi I, Channagiri V. Spinal anaesthesia with intravenous sedation for total hip arthroplasty in two patients with a history of orthotopic heart transplantation. Anaesth Rep 2023; 11:e12263. [PMID: 38031631 PMCID: PMC10682964 DOI: 10.1002/anr3.12263] [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] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
Many patients with orthotopic heart transplantation later undergo non-cardiac surgery. Historically, neuraxial anaesthesia has been avoided in these patients because the denervated heart is unable to compensate for hypotension via the baroreceptor reflex. Here, we present the cases of two patients with prior heart transplantation who underwent total hip arthroplasty under spinal anaesthesia with intravenous sedation. In both cases, this technique was well-tolerated haemodynamically. We propose that spinal anaesthesia with intravenous sedation can be a safe and efficacious anaesthetic technique for selected patients with a history of orthotopic heart transplantation, with careful intraoperative fluid and pharmacological management.
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Affiliation(s)
- L. Tseng
- Department of AnaesthesiologyColumbia University Irving Medical CenterNew YorkNYUSA
| | - I. Al‐Saidi
- Department of AnaesthesiologyColumbia University Irving Medical CenterNew YorkNYUSA
| | - V. Channagiri
- Department of AnaesthesiologyColumbia University Irving Medical CenterNew YorkNYUSA
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2
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Bordt AS, Patterson SS, Girresch RJ, Perez D, Tseng L, Anderson JR, Mazzaferri MA, Kuchenbecker JA, Gonzales-Rojas R, Roland A, Tang C, Puller C, Chuang AZ, Ogilvie JM, Neitz J, Marshak DW. Synaptic inputs to broad thorny ganglion cells in macaque retina. J Comp Neurol 2021; 529:3098-3111. [PMID: 33843050 DOI: 10.1002/cne.25156] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/19/2020] [Revised: 03/22/2021] [Accepted: 04/05/2021] [Indexed: 12/26/2022]
Abstract
In primates, broad thorny retinal ganglion cells are highly sensitive to small, moving stimuli. They have tortuous, fine dendrites with many short, spine-like branches that occupy three contiguous strata in the middle of the inner plexiform layer. The neural circuits that generate their responses to moving stimuli are not well-understood, and that was the goal of this study. A connectome from central macaque retina was generated by serial block-face scanning electron microscopy, a broad thorny cell was reconstructed, and its synaptic inputs were analyzed. It received fewer than 2% of its inputs from both ON and OFF types of bipolar cells; the vast majority of its inputs were from amacrine cells. The presynaptic amacrine cells were reconstructed, and seven types were identified based on their characteristic morphology. Two types of narrow-field cells, knotty bistratified Type 1 and wavy multistratified Type 2, were identified. Two types of medium-field amacrine cells, ON starburst and spiny, were also presynaptic to the broad thorny cell. Three types of wide-field amacrine cells, wiry Type 2, stellate wavy, and semilunar Type 2, also made synapses onto the broad thorny cell. Physiological experiments using a macaque retinal preparation in vitro confirmed that broad thorny cells received robust excitatory input from both the ON and the OFF pathways. Given the paucity of bipolar cell inputs, it is likely that amacrine cells provided much of the excitatory input, in addition to inhibitory input.
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Affiliation(s)
- Andrea S Bordt
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, Texas, USA.,Department of Ophthalmology, University of Washington, Seattle, Washington, USA
| | - Sara S Patterson
- Center for Visual Science, University of Rochester, Rochester, New York, USA
| | - Rebecca J Girresch
- Department of Biology, Saint Louis University, Saint Louis, Missouri, USA
| | - Diego Perez
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, Texas, USA
| | - Luke Tseng
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, Texas, USA
| | - James R Anderson
- John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA
| | - Marcus A Mazzaferri
- Department of Ophthalmology, University of Washington, Seattle, Washington, USA
| | | | | | - Ashley Roland
- Department of BioSciences, Rice University, Houston, Texas, USA
| | - Charis Tang
- Department of BioSciences, Rice University, Houston, Texas, USA
| | - Christian Puller
- Department of Ophthalmology, University of Washington, Seattle, Washington, USA.,Department of Neuroscience, Carl von Ossietzky University, Oldenburg, Germany
| | - Alice Z Chuang
- Department of Ophthalmology and Visual Science, McGovern Medical School, Houston, Texas, USA
| | | | - Jay Neitz
- Department of Ophthalmology, University of Washington, Seattle, Washington, USA
| | - David W Marshak
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, Texas, USA
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3
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Abba A, Accorsi C, Agnes P, Alessi E, Amaudruz P, Annovi A, Desages FA, Back S, Badia C, Bagger J, Basile V, Batignani G, Bayo A, Bell B, Beschi M, Biagini D, Bianchi G, Bicelli S, Bishop D, Boccali T, Bombarda A, Bonfanti S, Bonivento WM, Bouchard M, Breviario M, Brice S, Brown R, Calvo-Mozota JM, Camozzi L, Camozzi M, Capra A, Caravati M, Carlini M, Ceccanti A, Celano B, Cela Ruiz JM, Charette C, Cogliati G, Constable M, Crippa C, Croci G, Cudmore S, Dahl CE, Dal Molin A, Daley M, Di Guardo C, D'Avenio G, Davignon O, Del Tutto M, De Ruiter J, Devoto A, Diaz Gomez Maqueo P, Di Francesco F, Dossi M, Druszkiewicz E, Duma C, Elliott E, Farina D, Fernandes C, Ferroni F, Finocchiaro G, Fiorillo G, Ford R, Foti G, Fournier RD, Franco D, Fricbergs C, Gabriele F, Galbiati C, Garcia Abia P, Gargantini A, Giacomelli L, Giacomini F, Giacomini F, Giarratana LS, Gillespie S, Giorgi D, Girma T, Gobui R, Goeldi D, Golf F, Gorel P, Gorini G, Gramellini E, Grosso G, Guescini F, Guetre E, Hackman G, Hadden T, Hawkins W, Hayashi K, Heavey A, Hersak G, Hessey N, Hockin G, Hudson K, Ianni A, Ienzi C, Ippolito V, James CC, Jillings C, Kendziora C, Khan S, Kim E, King M, King S, Kittmer A, Kochanek I, Kowalkowski J, Krücken R, Kushoro M, Kuula S, Laclaustra M, Leblond G, Lee L, Lennarz A, Leyton M, Li X, Liimatainen P, Lim C, Lindner T, Lomonaco T, Lu P, Lubna R, Lukhanin GA, Luzón G, MacDonald M, Magni G, Maharaj R, Manni S, Mapelli C, Margetak P, Martin L, Martin S, Martínez M, Massacret N, McClurg P, McDonald AB, Meazzi E, Migalla R, Mohayai T, Tosatti LM, Monzani G, Moretti C, Morrison B, Mountaniol M, Muraro A, Napoli P, Nati F, Natzke CR, Noble AJ, Norrick A, Olchanski K, Ortiz de Solorzano A, Padula F, Pallavicini M, Palumbo I, Panontin E, Papini N, Parmeggiano L, Parmeggiano S, Patel K, Patel A, Paterno M, Pellegrino C, Pelliccione P, Pesudo V, Pocar A, Pope A, Pordes S, Prelz F, Putignano O, Raaf JL, Ratti C, Razeti M, Razeto A, Reed D, Refsgaard J, Reilly T, Renshaw A, Retriere F, Riccobene E, Rigamonti D, Rizzi A, Rode J, Romualdez J, Russel L, Sablone D, Sala S, Salomoni D, Salvo P, Sandoval A, Sansoucy E, Santorelli R, Savarese C, Scapparone E, Schaubel T, Scorza S, Settimo M, Shaw B, Shawyer S, Sher A, Shi A, Skensved P, Slutsky A, Smith B, Smith NJT, Stenzler A, Straubel C, Stringari P, Suchenek M, Sur B, Tacchino S, Takeuchi L, Tardocchi M, Tartaglia R, Thomas E, Trask D, Tseng J, Tseng L, VanPagee L, Vedia V, Velghe B, Viel S, Visioli A, Viviani L, Vonica D, Wada M, Walter D, Wang H, Wang MHLS, Westerdale S, Wood D, Yates D, Yue S, Zambrano V. The novel Mechanical Ventilator Milano for the COVID-19 pandemic. Phys Fluids (1994) 2021; 33:037122. [PMID: 33897243 PMCID: PMC8060010 DOI: 10.1063/5.0044445] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 02/14/2021] [Indexed: 06/12/2023]
Abstract
This paper presents the Mechanical Ventilator Milano (MVM), a novel intensive therapy mechanical ventilator designed for rapid, large-scale, low-cost production for the COVID-19 pandemic. Free of moving mechanical parts and requiring only a source of compressed oxygen and medical air to operate, the MVM is designed to support the long-term invasive ventilation often required for COVID-19 patients and operates in pressure-regulated ventilation modes, which minimize the risk of furthering lung trauma. The MVM was extensively tested against ISO standards in the laboratory using a breathing simulator, with good agreement between input and measured breathing parameters and performing correctly in response to fault conditions and stability tests. The MVM has obtained Emergency Use Authorization by U.S. Food and Drug Administration (FDA) for use in healthcare settings during the COVID-19 pandemic and Health Canada Medical Device Authorization for Importation or Sale, under Interim Order for Use in Relation to COVID-19. Following these certifications, mass production is ongoing and distribution is under way in several countries. The MVM was designed, tested, prepared for certification, and mass produced in the space of a few months by a unique collaboration of respiratory healthcare professionals and experimental physicists, working with industrial partners, and is an excellent ventilator candidate for this pandemic anywhere in the world.
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Affiliation(s)
- A. Abba
- Nuclear Instruments S.R.L., Como 22045, Italy
| | - C. Accorsi
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - P. Agnes
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - E. Alessi
- Istituto per la Scienza e Tecnologia dei Plasmi, ISTP-CNR, Milano 20125, Italy
| | - P. Amaudruz
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - A. Annovi
- INFN Sezione di Pisa, Pisa 56127, Italy
| | - F. Ardellier Desages
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, F-75013 Paris, France
| | - S. Back
- SNOLAB, Lively, Ontario P3Y 1N2, Canada
| | - C. Badia
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - J. Bagger
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - V. Basile
- Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato, CNR STIIMA, Milano 20133, Italy
| | | | - A. Bayo
- LSC, Laboratorio Subterráneo de Canfranc, Canfranc-Estación 22880, Spain
| | - B. Bell
- JMP Solutions, London, Ontario N6N 1E2, Canada
| | | | - D. Biagini
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa 56124, Italy
| | - G. Bianchi
- Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato, CNR STIIMA, Milano 20133, Italy
| | - S. Bicelli
- Camozzi Group S.p.A., Brescia BS 25126, Italy
| | - D. Bishop
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | | | - A. Bombarda
- Dipartimento di Ingegneria Gestionale, dell'Informazione e della Produzione, Università di Bergamo, Bergamo, 24129, Italy
| | - S. Bonfanti
- Dipartimento di Ingegneria Gestionale, dell'Informazione e della Produzione, Università di Bergamo, Bergamo, 24129, Italy
| | | | - M. Bouchard
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - M. Breviario
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - S. Brice
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R. Brown
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - J. M. Calvo-Mozota
- LSC, Laboratorio Subterráneo de Canfranc, Canfranc-Estación 22880, Spain
| | - L. Camozzi
- Camozzi Group S.p.A., Brescia BS 25126, Italy
| | - M. Camozzi
- Camozzi Group S.p.A., Brescia BS 25126, Italy
| | - A. Capra
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - M. Caravati
- INFN Sezione di Cagliari, Cagliari 09042, Italy
| | - M. Carlini
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | | | - B. Celano
- INFN Sezione di Napoli, Napoli 80126, Italy
| | - J. M. Cela Ruiz
- CIEMAT, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - C. Charette
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - G. Cogliati
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - M. Constable
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - C. Crippa
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - G. Croci
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano 20126, Italy
| | - S. Cudmore
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | | | - A. Dal Molin
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano 20126, Italy
| | - M. Daley
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - C. Di Guardo
- Dipartimento di Scienze Economiche ed Aziendali, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - G. D'Avenio
- National Center for Innovative Technologies in Public Health, ISS (Italy National Institute of Health), Roma 00161, Italy
| | - O. Davignon
- Laboratoire Leprince Ringuet, École Polytechnique, Palaiseau, Cedex 91128, France
| | - M. Del Tutto
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J. De Ruiter
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - A. Devoto
- Dipartimento di Fisica, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | | | - F. Di Francesco
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa 56124, Italy
| | - M. Dossi
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - E. Druszkiewicz
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - C. Duma
- INFN-CNAF, Bologna 40127, Italy
| | - E. Elliott
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - D. Farina
- Istituto per la Scienza e Tecnologia dei Plasmi, ISTP-CNR, Milano 20125, Italy
| | | | | | | | | | - R. Ford
- SNOLAB, Lively, Ontario P3Y 1N2, Canada
| | | | | | - D. Franco
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, F-75013 Paris, France
| | | | - F. Gabriele
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - P. Garcia Abia
- CIEMAT, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - A. Gargantini
- Dipartimento di Ingegneria Gestionale, dell'Informazione e della Produzione, Università di Bergamo, Bergamo, 24129, Italy
| | - L. Giacomelli
- Istituto per la Scienza e Tecnologia dei Plasmi, ISTP-CNR, Milano 20125, Italy
| | | | | | | | - S. Gillespie
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - D. Giorgi
- Camozzi Group S.p.A., Brescia BS 25126, Italy
| | - T. Girma
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | - R. Gobui
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | | | - F. Golf
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68508, USA
| | - P. Gorel
- SNOLAB, Lively, Ontario P3Y 1N2, Canada
| | - G. Gorini
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano 20126, Italy
| | - E. Gramellini
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G. Grosso
- Istituto per la Scienza e Tecnologia dei Plasmi, ISTP-CNR, Milano 20125, Italy
| | - F. Guescini
- Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), 80805 München, Germany
| | - E. Guetre
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - G. Hackman
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - T. Hadden
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | | | - K. Hayashi
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - A. Heavey
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G. Hersak
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - N. Hessey
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - G. Hockin
- JMP Solutions, London, Ontario N6N 1E2, Canada
| | - K. Hudson
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | - A. Ianni
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - C. Ienzi
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | | | - C. C. James
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - C. Kendziora
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S. Khan
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | - E. Kim
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - M. King
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - S. King
- JMP Solutions, London, Ontario N6N 1E2, Canada
| | - A. Kittmer
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - I. Kochanek
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - J. Kowalkowski
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - M. Kushoro
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano 20126, Italy
| | - S. Kuula
- SNOLAB, Lively, Ontario P3Y 1N2, Canada
| | | | - G. Leblond
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - L. Lee
- Department of APT, Faculty of Medicine, University of British Columbia, Vancouver V5Z 1M9, Canada
| | - A. Lennarz
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - M. Leyton
- INFN Sezione di Napoli, Napoli 80126, Italy
| | - X. Li
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - C. Lim
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - T. Lindner
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - T. Lomonaco
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa 56124, Italy
| | - P. Lu
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - R. Lubna
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - G. A. Lukhanin
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G. Luzón
- CAPA (Centro de Astropartículas y Física de Altas Energías), Universidad de Zaragoza, Zaragoza 50009, Spain
| | - M. MacDonald
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - G. Magni
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - R. Maharaj
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - S. Manni
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - C. Mapelli
- Dipartimento di Meccanica, Politecnico di Milano, Milano 20156, Italy
| | - P. Margetak
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - L. Martin
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - S. Martin
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | | | - N. Massacret
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - P. McClurg
- Department of Respiratory and Anaesthesia Technology, Vanier College, Montréal, Quebec H4L 3X9, Canada
| | | | - E. Meazzi
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | | | - T. Mohayai
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L. M. Tosatti
- Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato, CNR STIIMA, Milano 20133, Italy
| | - G. Monzani
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - C. Moretti
- Dipartimento di Pediatria, Sapienza Università di Roma, Roma 00185, Italy
| | | | | | - A. Muraro
- Istituto per la Scienza e Tecnologia dei Plasmi, ISTP-CNR, Milano 20125, Italy
| | - P. Napoli
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - F. Nati
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano 20126, Italy
| | - C. R. Natzke
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | | | - A. Norrick
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - K. Olchanski
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - A. Ortiz de Solorzano
- CAPA (Centro de Astropartículas y Física de Altas Energías), Universidad de Zaragoza, Zaragoza 50009, Spain
| | - F. Padula
- School of Civil and Mechanical Engineering, Curtin University, Perth (Washington), Australia
| | | | - I. Palumbo
- Azienda Ospedaliera San Gerardo, Monza 20900, Italy
| | - E. Panontin
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano 20126, Italy
| | - N. Papini
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | | | | | - K. Patel
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | - A. Patel
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | - M. Paterno
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | | | | | - A. Pocar
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - A. Pope
- JMP Solutions, London, Ontario N6N 1E2, Canada
| | - S. Pordes
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - F. Prelz
- INFN Sezione di Milano, Milano 20133, Italy
| | - O. Putignano
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano 20126, Italy
| | - J. L. Raaf
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - C. Ratti
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - M. Razeti
- INFN Sezione di Cagliari, Cagliari 09042, Italy
| | - A. Razeto
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - D. Reed
- Equilibar L.L.C., Fletcher, North Carolina 28732, USA
| | - J. Refsgaard
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - T. Reilly
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | - A. Renshaw
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - F. Retriere
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - E. Riccobene
- Dipartimento di Informatica, Universitá degli Studi di Milano, Milano 20122, Italy
| | - D. Rigamonti
- Istituto per la Scienza e Tecnologia dei Plasmi, ISTP-CNR, Milano 20125, Italy
| | | | | | - J. Romualdez
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - L. Russel
- JMP Solutions, London, Ontario N6N 1E2, Canada
| | - D. Sablone
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - S. Sala
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | | | - P. Salvo
- Istituto di Fisiologia Clinica del CNR, IFC-CNR, Pisa 56124, Italy
| | | | - E. Sansoucy
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - R. Santorelli
- CIEMAT, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - C. Savarese
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - T. Schaubel
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - S. Scorza
- SNOLAB, Lively, Ontario P3Y 1N2, Canada
| | - M. Settimo
- SUBATECH, IMT Atlantique, Université de Nantes, CNRS-IN2P3, Nantes 44300, France
| | - B. Shaw
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - S. Shawyer
- JMP Solutions, London, Ontario N6N 1E2, Canada
| | - A. Sher
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - A. Shi
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | | | - A. Slutsky
- St. Michael's Hospital, Unity Health Toronto, Ontario M5B 1W8, Canada
| | - B. Smith
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | | | - A. Stenzler
- 12th Man Technologies, Garden Grove, California 92841, USA
| | - C. Straubel
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - P. Stringari
- MINES ParisTech, PSL University, CTP-Centre of Thermodynamics of Processes, 77300 Fontainebleau, France
| | - M. Suchenek
- AstroCeNT, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Warsaw 00-614, Poland
| | - B. Sur
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | | | - L. Takeuchi
- Department of Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - M. Tardocchi
- Istituto per la Scienza e Tecnologia dei Plasmi, ISTP-CNR, Milano 20125, Italy
| | - R. Tartaglia
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - E. Thomas
- Arthur B. McDonald Canadian Astroparticle Research Institute, Kingston, Ontario K7L 3N6, Canada
| | - D. Trask
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - J. Tseng
- Department of Physics, University of Oxford, The Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - L. Tseng
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | - L. VanPagee
- JMP Solutions, London, Ontario N6N 1E2, Canada
| | - V. Vedia
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - B. Velghe
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | | | - A. Visioli
- Dipartimento di Ingegneria Meccanica e Industriale, Università degli Studi di Brescia, Brescia 25123, Italy
| | - L. Viviani
- Elemaster Group S.p.A., Lomagna (LC) 23871, Italy
| | - D. Vonica
- VEXOS, Markham, Ontario L3R 9X6, Canada
| | - M. Wada
- AstroCeNT, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Warsaw 00-614, Poland
| | - D. Walter
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - H. Wang
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - M. H. L. S. Wang
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - D. Wood
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - D. Yates
- TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - S. Yue
- Canadian Nuclear Laboratories, Chalk River K0J 1J0, Canada
| | - V. Zambrano
- CAPA (Centro de Astropartículas y Física de Altas Energías), Universidad de Zaragoza, Zaragoza 50009, Spain
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4
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Zhou MJ, Tseng L, Guo X, Jin Z, Bentley-Hibbert S, Shen S, Araujo JL, Spinelli CF, Altorki NK, Sonett JR, Neugut AI, Abrams JA. Low Subcutaneous Adiposity and Mortality in Esophageal Cancer. Cancer Epidemiol Biomarkers Prev 2020; 30:114-122. [PMID: 33008872 DOI: 10.1158/1055-9965.epi-20-0737] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/10/2020] [Accepted: 09/28/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Recent data suggest that subcutaneous adiposity represents an independent prognostic marker in cancer. We aimed to determine whether subcutaneous adiposity estimated by the subcutaneous adiposity tissue index (SATI) was associated with mortality in esophageal cancer. METHODS We conducted a retrospective analysis of a prospectively enrolled cohort from 2009 to 2015 with esophageal cancer at two major cancer centers. CT scans for initial staging were used to quantify adiposity and skeletal muscle areas. Subjects were categorized as above or below median SATI using sex-specific values. Sarcopenia was defined using previously established skeletal muscle area cutoffs. Cox proportional hazards modeling was performed to determine associations between SATI and all-cause mortality. RESULTS Of the original 167 patients, 78 met inclusion criteria and had CT images available. Mean age was 67 years, 81.8% had adenocarcinoma, and 58.9% had stage 3 or 4 disease. Median follow-up time was 29.5 months. Overall 5-year survival was 38.9% [95% confidence interval (CI), 26.8-50.7]. Lower body mass index, higher Charlson comorbidity score, and more advanced stage were independently associated with low SATI. Patients with low SATI had increased mortality (unadjusted HR 2.23; 95% CI, 1.20-4.12), even when adjusted for sarcopenia or for percent weight loss. In a multivariable model including age, histology, stage, and receipt of curative surgery, the association between low SATI and mortality was attenuated (adjusted HR 1.64; 95% CI, 0.81-3.34). CONCLUSIONS Low subcutaneous adiposity as estimated by SATI may be associated with increased mortality in esophageal cancer. IMPACT Interventions to reduce loss of subcutaneous fat may improve survival in esophageal cancer.
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Affiliation(s)
- Margaret J Zhou
- Department of Medicine, Columbia University Irving Medical Center, New York, New York
| | - Luke Tseng
- Department of Medicine, Columbia University Irving Medical Center, New York, New York
| | - Xiaotao Guo
- Department of Radiology, Columbia University Irving Medical Center, New York, New York
| | - Zhezhen Jin
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York
| | | | - Sherry Shen
- Department of Medicine, Columbia University Irving Medical Center, New York, New York
| | - James L Araujo
- Department of Gastroenterology, SUNY Downstate Health Sciences University, New York, New York
| | - Cathy F Spinelli
- Department of Thoracic Surgery, Weill Cornell Medical Center, New York, New York
| | - Nasser K Altorki
- Department of Thoracic Surgery, Weill Cornell Medical Center, New York, New York
| | - Joshua R Sonett
- Department of Thoracic Surgery, Columbia University Irving Medical Center, New York, New York.,Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Alfred I Neugut
- Department of Medicine, Columbia University Irving Medical Center, New York, New York.,Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York.,Department of Epidemiology, Mailman School of Public Health, Columbia University Irving Medical Center, New York, New York
| | - Julian A Abrams
- Department of Medicine, Columbia University Irving Medical Center, New York, New York. .,Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York.,Department of Epidemiology, Mailman School of Public Health, Columbia University Irving Medical Center, New York, New York
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5
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Patterson SS, Bordt AS, Girresch RJ, Linehan CM, Bauss J, Yeo E, Perez D, Tseng L, Navuluri S, Harris NB, Matthews C, Anderson JR, Kuchenbecker JA, Manookin MB, Ogilvie JM, Neitz J, Marshak DW. Wide-field amacrine cell inputs to ON parasol ganglion cells in macaque retina. J Comp Neurol 2020; 528:1588-1598. [PMID: 31845339 PMCID: PMC7153979 DOI: 10.1002/cne.24840] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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] [Received: 08/13/2019] [Revised: 10/31/2019] [Accepted: 11/24/2019] [Indexed: 11/07/2022]
Abstract
Parasol cells are one of the major types of primate retinal ganglion cells. The goal of this study was to describe the synaptic inputs that shape the light responses of the ON type of parasol cells, which are excited by increments in light intensity. A connectome from central macaque retina was generated by serial blockface scanning electron microscopy. Six neighboring ON parasol cells were reconstructed, and their synaptic inputs were analyzed. On average, they received 21% of their input from bipolar cells, excitatory local circuit neurons receiving input from cones. The majority of their input was from amacrine cells, local circuit neurons of the inner retina that are typically inhibitory. Their contributions to the neural circuit providing input to parasol cells are not well-understood, and the focus of this study was on the presynaptic wide-field amacrine cells, which provided 17% of the input to ON parasol cells. These are GABAergic amacrine cells with long, relatively straight dendrites, and sometimes also axons, that run in a single, narrow stratum of the inner plexiform layer. The presynaptic wide-field amacrine cells were reconstructed, and two types were identified based on their characteristic morphology. One presynaptic amacrine cell was identified as semilunar type 2, a polyaxonal cell that is electrically coupled to ON parasol cells. A second amacrine was identified as wiry type 2, a type known to be sensitive to motion. These inputs likely make ON parasol cells more sensitive to stimuli that are rapidly changing outside their classical receptive fields.
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Affiliation(s)
- Sara S Patterson
- Department of Ophthalmology, University of Washington, Seattle, Washington
- Neuroscience Graduate Program, University of Washington, Seattle, Washington
| | - Andrea S Bordt
- Department of Neurobiology & Anatomy, McGovern Medical School, Houston, Texas
| | | | - Conor M Linehan
- Department of Ophthalmology, University of Washington, Seattle, Washington
| | - Jacob Bauss
- Department of Biology, Saint Louis University, Saint Louis, Missouri
| | - Eunice Yeo
- Department of Biology, Saint Louis University, Saint Louis, Missouri
| | - Diego Perez
- Department of Neurobiology & Anatomy, McGovern Medical School, Houston, Texas
| | - Luke Tseng
- Department of Neurobiology & Anatomy, McGovern Medical School, Houston, Texas
| | - Sriram Navuluri
- Department of Neurobiology & Anatomy, McGovern Medical School, Houston, Texas
| | - Nicole B Harris
- Department of Neurobiology & Anatomy, McGovern Medical School, Houston, Texas
| | - Chaiss Matthews
- Department of Neurobiology & Anatomy, McGovern Medical School, Houston, Texas
| | - James R Anderson
- John A. Moran Eye Center, University of Utah, Salt Lake City, Utah
| | | | - Michael B Manookin
- Department of Ophthalmology, University of Washington, Seattle, Washington
| | - Judith M Ogilvie
- Department of Biology, Saint Louis University, Saint Louis, Missouri
| | - Jay Neitz
- Department of Ophthalmology, University of Washington, Seattle, Washington
| | - David W Marshak
- Department of Neurobiology & Anatomy, McGovern Medical School, Houston, Texas
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6
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Patterson SS, Bordt AS, Girresch RJ, Linehan CM, Bauss J, Yeo E, Perez D, Tseng L, Navuluri S, Harris NB, Matthews C, Anderson JR, Kuchenbecker JA, Manookin MB, Ogilvie JM, Neitz J, Marshak DW. Cover Image, Volume 528, Issue 9. J Comp Neurol 2020. [DOI: 10.1002/cne.24917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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7
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Van Cutsem E, Shitara K, Deng W, Vaury A, Tseng L, Wang X, Millholland J, Shilkrut M, Mookerjee B, Jonasch E. Gevokizumab, an interleukin-1β (IL-1β) monoclonal antibody (mAb), in metastatic colorectal cancer (mCRC), metastatic gastroesophageal cancer (mGEC) and metastatic renal cell carcinoma (mRCC): “first-in-cancer” phase Ib study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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8
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Florez-Pollack S, Tseng L, Kobayashi M, Hosler G, Ariizumi K, Chong B. 413 DC-HIL+ myeloid-derived suppressor cells are elevated in the peripheral blood and lesional skin of cutaneous lupus patients. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.420] [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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9
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Li K, Shao X, Tseng L, Malcolmson SJ. 2-Azadienes as Reagents for Preparing Chiral Amines: Synthesis of 1,2-Amino Tertiary Alcohols by Cu-Catalyzed Enantioselective Reductive Couplings with Ketones. J Am Chem Soc 2018; 140:598-601. [PMID: 29272124 PMCID: PMC5936605 DOI: 10.1021/jacs.7b12213] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We introduce a new strategy for synthesis of chiral amines: couplings of α-aminoalkyl nucleophiles generated by enantioselective migratory insertion of 2-azadienes to a Cu-H. In this report, we demonstrate its application in catalytic reductive coupling of 2-azadienes and ketones to furnish 1,2-amino tertiary alcohols with vicinal stereogenic centers.
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Affiliation(s)
| | | | - Luke Tseng
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Steven J. Malcolmson
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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10
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Li K, Weber AE, Tseng L, Malcolmson SJ. Diastereoselective and Enantiospecific Synthesis of 1,3-Diamines via 2-Azaallyl Anion Benzylic Ring-Opening of Aziridines. Org Lett 2017; 19:4239-4242. [DOI: 10.1021/acs.orglett.7b01886] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kangnan Li
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Alexandria E. Weber
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Luke Tseng
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Steven J. Malcolmson
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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11
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Ye Q, Liu L, Wu Y, Yeh F, Li W, Tseng L, Ho C. Intralipid ® attenuates acute cardiac allograft rejection in relation to promoting CD4 + CD25 + Foxp3 + regulatory T-cells and inhibiting toll-like receptor 4 expression. Transplantation Reports 2017. [DOI: 10.1016/j.tpr.2017.05.001] [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] Open
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12
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Kieran M, Bouffet E, Tabori U, Broniscer A, Cohen K, Hansford J, Geoerger B, Hingorani P, Dunkel I, Russo M, Tseng L, Liu Q, Nebot N, Whitlock J, Hargrave D. CNS tumours The first study of dabrafenib in pediatric patients with BRAF V600–mutant relapsed or refractory low-grade gliomas. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw435.09] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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13
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Long Y, Bordt AS, Liu WS, Davis EP, Lee SJ, Tseng L, Chuang AZ, Whitaker CM, Massey SC, Sherman MB, Marshak DW. Wide-field diffuse amacrine cells in the monkey retina contain immunoreactive Cocaine- and Amphetamine-Regulated Transcript (CART). Peptides 2016; 84:22-35. [PMID: 27568514 PMCID: PMC5037056 DOI: 10.1016/j.peptides.2016.08.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 06/17/2016] [Revised: 07/19/2016] [Accepted: 08/22/2016] [Indexed: 10/21/2022]
Abstract
The goals of this study were to localize the neuropeptide Cocaine- and Amphetamine-Regulated Transcript (CART) in primate retinas and to describe the morphology, neurotransmitter content and synaptic connections of the neurons that contain it. Using in situ hybridization, light and electron microscopic immunolabeling, CART was localized to GABAergic amacrine cells in baboon retinas. The CART-positive cells had thin, varicose dendrites that gradually descended through the inner plexiform layer and ramified extensively in the innermost stratum. They resembled two types of wide-field diffuse amacrine cells that had been described previously in macaque retinas using the Golgi method and also A17, serotonin-accumulating and waterfall cells of other mammals. The CART-positive cells received synapses from rod bipolar cell axons and made synapses onto the axons in a reciprocal configuration. The CART-positive cells also received synapses from other amacrine cells. Some of these were located on their primary dendrites, and the presynaptic cells there included dopaminergic amacrine cells. Although some CART-positive somas were localized in the ganglion cell layer, they did not contain the ganglion cell marker RNA binding protein with multiple splicing (RBPMS). Based on these results and electrophysiological studies in other mammals, the CART-positive amacrine cells would be expected to play a major role in the primary rod pathway of primates, providing feedback inhibition to rod bipolar cells.
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Affiliation(s)
- Ye Long
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, TX
| | - Andrea S. Bordt
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, TX
| | - Weiley S. Liu
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, TX
| | - Elizabeth P. Davis
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, TX
| | - Stephen J. Lee
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, TX
| | - Luke Tseng
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, TX
| | - Alice Z. Chuang
- Department of Ophthalmology and Visual Science, McGovern Medical School, Houston, TX
| | | | - Stephen C. Massey
- Department of Ophthalmology and Visual Science, McGovern Medical School, Houston, TX
| | - Michael B. Sherman
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX
| | - David W. Marshak
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, TX
- Department of Ophthalmology and Visual Science, McGovern Medical School, Houston, TX
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14
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Goldstein I, Tseng L, Creanga D, Stecher V, Kaminetsky J. 095 Efficacy and Safety of Sildenafil by Age in Men With Erectile Dysfunction. J Sex Med 2016. [DOI: 10.1016/j.jsxm.2016.02.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Cappelleri J, Tseng L, Luo X, Stecher V, Lue T. 006 Simplified Interpretation of the Erectile Function Domain of the International Index of Erectile Function. J Sex Med 2016. [DOI: 10.1016/j.jsxm.2016.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Hashkes PJ, Aviel YB, Lubin S, Tseng L, Ben Dayan E, Rachmilewitz T, Brik R. OR7-005 – Canakinumab in childhood colchicine resistant FMF. Pediatr Rheumatol Online J 2013. [PMCID: PMC3952599 DOI: 10.1186/1546-0096-11-s1-a106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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17
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Brik R, Butbul Aviel Y, Lubin S, Ben Dayan E, Tseng L, Hashkes PJ. OP0075 A 6-Month, Phase 2, Open–Label, Single-Arm Study to Evaluate the Safety and Efficacy of Treatment with Canakinumab of Pediatric Patients with Colchicine Resistant Familial Mediterranean Fever. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.280] [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: 11/04/2022]
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18
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Anton J, Calvo I, Robles A, Yagüe J, Aróstegui J, Viana R, Tseng L, Abrams K. THU0490 Canakinumab Treatment of Patients with Hyper-IgD Syndrome: An Open-Label, Multicenter, Pilot Study. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1018] [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: 11/03/2022]
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19
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Choueiri TK, Pal SK, Cabanillas ME, Ramies DA, Tseng L, Holland JS, Morrissey S, Dutcher JP. Antitumor activity observed in a phase I drug–drug interaction study of cabozantinib (XL184) and rosiglitazone in patients (pts) with renal cell carcinoma (RCC) and differentiated thyroid cancer (DTC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e13042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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20
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Vergote I, Sella A, Bedell C, Ramondetta L, Shapiro G, Balic K, Prokopczuk E, Sauer L, Tseng L, Berger R. 407 Phase 2 study of XL184 in a cohort of ovarian cancer patients (pts) with measurable soft tissue disease. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)72114-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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21
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Lu Y, Tseng L, Hou M, Lin C, Li H, Chen S. Treatment patterns and clinical outcomes of patients with advanced breast cancer after failure of an anthracycline and a taxane in Taiwan. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e11504] [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: 11/20/2022] Open
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22
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Tseng L, Chen I, Chen M, Lee C. P767 Triumph: Genome-based expression profiles as a single standardized microarray platform for the pathogenesis of endometriosis. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)62258-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Abstract
Activation of Delta-Notch signaling pathway promotes the development of the vascular system in embryo, normal adult tissues, and cancerous lesions. Delta and Notch genes are known to be expressed in endothelial cells, and little is known of their expression beyond the vascular system. The purpose of this study was to investigate whether Delta gene would be expressed in cells of the uterine endometrium. In this study, we found that the human endometrial cells expressed one of the Delta ligands, Delta-like 4 protein (Dll4). Dll4 was expressed in human endometrium in a spatiotemporal fashion. Immunohistochemistry studies showed the cytoplasm as well as membrane staining with apical localization both in the luminal and glandular epithelium and moderate diffuse staining in the cytoplasm of the stromal cells. Western blot analysis showed that the size of the endometrial Dll4 was identical to that in the human umbilical endothelial cells. The expression of Dll4 mRNA in human endometrial cells was quantitatively determined by real-time PCR. Dll4 mRNA expressed in the glandular epithelium showed large variations, and it was significantly elevated in the mid and late proliferative and early secretory endometrium. Endometrial stromal cells contained less Dll4 mRNA and had no clear correlation with the menstrual cycle. The effect of hormones was studied in the primary culture of isolated glandular epithelial and stromal cells. In glandular cells, estradiol had little effect, and medroxyprogesterone acetate significantly reduced the mRNAs compared with that of control. Relaxin induced the Dll4 mRNA. In stromal cells, both estradiol and medroxyprogesterone acetate reduced the Dll4 mRNA. To our knowledge, this is the first report of the expression of Dll4 in the endometrium. We propose that endometrial Dll4 may enhance the development of the endometrial microvascular system and facilitate the implantation of blastocyst in a fertile cycle.
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Affiliation(s)
- J Mazella
- Department of Obstetrics/Gynecology, School of Medicine, Stony Brook University, Stony Brook, New York 11794, USA
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24
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Huang C, Yang C, Yeh K, Hu F, Lin Z, Wan J, Tseng L, Yu C, Cheng A. The association of epidermal growth factor receptor ( EGFR) polymorphisms and clinicopathological factors with skin rash on gefitinib use. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.18118] [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: 11/20/2022] Open
Abstract
18118 Background: Skin rash is the most common toxicity of EGFR-targeted therapy. Skin rash of EGFR inhibitor is associated with longer survival or tumor response. However, the clinical and genetic factors associated with this skin rash are not well understood. Methods: Fifty-two non-small-cell lung cancer patients enrolled in a prospective clinical trial of first-line gefitinib treatment were genotyped for EGFR intron 1 CA repeat polymorphism (CAn) and single nucleotide polymorphisms at promoters G-216T, C-191A, and R521K. Grade 2 to 3 skin rash within 4 weeks of treatment (early G2/3 rash) was correlated with the genotype and clinicopathological features of the patients by multivariate logistic regression. Results: Seventeen patients (32.7%) developed early G2/3 rash. In multivariate logistic regression analysis, only the CAn genotype was associated with early G2/3 rash and the effect was modified by patient age. Early G2/3 rash developed in 21% of patients with homozygous long allele (19 to 22 repeats, L) genotype (4/19), 31% of heterozygous short allele (15 to 18 repeats, S) / L genotype (8/26), and 71% of S/S genotype (5/7), respectively. The median ages of patients with early G2/3 rash and patients without early G2/3 rash were 57 years (range: 39–77) and 69 years (range: 43–86), respectively. The estimated logarithm of odds ratio (ln OR) for early G2/3 rash, as compared to S/S genotype, for S/L genotype was -0.038 multiplied by patient age (P = 0.011); and the ln OR for L/L genotype was -0.050 multiplied by patient age (P = 0.004). Fifty patients were evaluable for response. In logistic regression analysis, early G2/3 rash correlated with tumor response (P = 0.027). However, the CAn genotype was not significantly correlated with tumor response (P = 0.43). Conclusions: Homozygous short allele of EGFR CAn is more likely to develop skin rashes on gefitinib treatment. Genotyping of EGFR CAn appears to be a useful predictive marker for development of skin rashes on gefitinib use. [Table: see text]
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Affiliation(s)
- C. Huang
- National Taiwan Univ Hosp, Taipei, Taiwan
| | - C. Yang
- National Taiwan Univ Hosp, Taipei, Taiwan
| | - K. Yeh
- National Taiwan Univ Hosp, Taipei, Taiwan
| | - F. Hu
- National Taiwan Univ Hosp, Taipei, Taiwan
| | - Z. Lin
- National Taiwan Univ Hosp, Taipei, Taiwan
| | - J. Wan
- National Taiwan Univ Hosp, Taipei, Taiwan
| | - L. Tseng
- National Taiwan Univ Hosp, Taipei, Taiwan
| | - C. Yu
- National Taiwan Univ Hosp, Taipei, Taiwan
| | - A. Cheng
- National Taiwan Univ Hosp, Taipei, Taiwan
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Wijsmuller AR, Leegwater M, Tseng L, Smaal HJ, Kleinrensink GJ, Lange JF. Authors' reply: Optimizing the critical view of safety in laparoscopic cholecystectomy by clipping and transecting the cystic artery before the cystic duct ( Br J Surg 2007; 94: 473–474). Br J Surg 2007. [DOI: 10.1002/bjs.5937] [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 R Wijsmuller
- Department of Surgery, Erasmus MC, University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
| | - M Leegwater
- Department of Surgery, Erasmus MC, University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
| | - L Tseng
- Department of Surgery, Erasmus MC, University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
| | - H J Smaal
- Department of Surgery, Erasmus MC, University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
| | - G J Kleinrensink
- Department of Surgery, Erasmus MC, University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
| | - J F Lange
- Department of Surgery, Erasmus MC, University Medical Center, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
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Wijsmuller AR, Leegwater M, Tseng L, Smaal HJ, Kleinrensink GJ, Lange JF. Optimizing the critical view of safety in laparoscopic cholecystectomy by clipping and transecting the cystic artery before the cystic duct. Br J Surg 2007; 94:473-4. [PMID: 17262752 DOI: 10.1002/bjs.5632] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Might prevent bile duct injury
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Affiliation(s)
- A R Wijsmuller
- Department of Surgery, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
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Thung I, Zhao L, Zhang H, Gouw A, Solovyeva A, Lysaya N, Tseng L, Timiras P. Neuroendocrine regulation of proliferation, maturation, and de-differentiation of neuroglia. Exp Gerontol 2007. [DOI: 10.1016/j.exger.2006.06.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Tran A, Ju J, Uppal A, Tseng L, Kreuter K, Mukai D, Guo S, Burney T, Chen Z, Mahon S, Brenner M. REAL-TIME HIGH-RESOLUTION COMPARISON OF TRACHEAL AND BRONCHIAL INJURY CHANGES DURING SMOKE INHALATION IN RABBITS USING OPTICAL COHERENCE TOMOGRAPHY. J Investig Med 2007. [DOI: 10.1097/00042871-200701010-00157] [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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Tseng L, Mukai D, Guo S, Kreuter K, Brenner E, Chen Z, Brenner M. 491 EVALUATION OF AIRWAY EDEMA FROM SMOKE INHALATION USING OPTICAL COHERENCE TOMOGRAPHY. J Investig Med 2006. [DOI: 10.2310/6650.2005.x0004.490] [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: 11/18/2022]
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De Salles AAF, Frighetto L, Behnke E, Sinha S, Tseng L, Torres R, Lee M, Cabatan-Awang C, Frysinger R. Functional Neurosurgery in the MRI Environment. ACTA ACUST UNITED AC 2004; 47:284-9. [PMID: 15578341 DOI: 10.1055/s-2004-830094] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [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: 10/26/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate the feasibility of microelectrode recording, electrical stimulation, and electrode position checking during functional neurosurgical procedures (DBS, lesion) in the interventional magnetic resonance imaging (iMRI) environment. METHODS Seventy-six surgical procedures for DBS implant or radiofrequency lesion were performed in an open 0.2 T MRI operating room. DBS implants were performed in 54 patients (72 surgical procedures) and unilateral radiofrequency lesions in three for a total of 76 surgeries in 57 patients. Electrophysiological studies including macrostimulation and microelectrode recordings for localization were obtained in the 0.5 to 10 mT fringes of the magnetic field in 51 surgeries. MRI confirmation of the electrode position during the procedure was performed after electrophysiological localization. RESULTS The magnetic field associated with the MRI scanner did not contribute significant noise to microelectrode recordings. Anatomical confirmation of electrode position was possible within the MRI artifact from the DBS hardware. Symptomatic hemorrhage was detected in two (2.6 %) patients during the operation. Image quality of the 0.2 T MRI scan was sub-optimal for anatomical localization. However, image fusion with pre-operative scans permitted excellent visualization of the DBS electrode tip in relation to the higher quality 1.5 T MRI anatomical scans. CONCLUSION This study shows that conventional stereotactic localization, microelectrode recordings, electrical stimulation, implant of DBS hardware, and radiofrequency lesion placement are possible in the open 0.2 T iMRI environment. The convenience of having an imaging modality that can visualize the brain during the operation is ideal for stereotactic procedures.
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Affiliation(s)
- A A F De Salles
- Division of Neurosurgery, School of Medicine, University of California-Los Angeles, 200 UCLA Medical Plaza Suite 504, Los Angeles, CA 90095-7182, USA.
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Mazella J, Tang M, Tseng L. Disparate effects of relaxin and TGFbeta1: relaxin increases, but TGFbeta1 inhibits, the relaxin receptor and the production of IGFBP-1 in human endometrial stromal/decidual cells. Hum Reprod 2004; 19:1513-8. [PMID: 15155604 DOI: 10.1093/humrep/deh274] [Citation(s) in RCA: 48] [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] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The purpose of this study was to determine the effect of progestin, relaxin (RLX) and transforming growth factor beta1 (TGFbeta1) on the content of relaxin receptor (LGR7) mRNA. The effect of RLX on insulin-like growth factor binding protein-1 (IGFBP-1) production was determined to evaluate the biological function of RLX/receptor in human endometrial cells. METHODS AND RESULTS The levels of LGR7 mRNA and the effect of hormones were determined by real-time PCR in endometrial cells. LGR7 mRNA was found to be relatively abundant in endometrial glands and decidual cells and much less in endometrial stromal cells. In stromal cells, medroxyprogesterone acetate (MPA), or MPA plus RLX, significantly increased the LGR7 mRNA and RLX alone had little effect. In decidual cells, RLX increased LGR7 mRNA in a dose- and time-dependent fashion. TGFbeta1 reduced the LGR7 mRNA. In stromal cells, MPA alone caused a slight increase (2-4-fold) of the production rate of IGFBP-1 whereas MPA plus RLX synergistically increased (>40-fold) the IGFBP-1 production. In decidual cells in which the basal production rate was already approximately 50-fold higher than in stromal cells, RLX alone caused an additional increase (>30-fold) on the production rate. TGFbeta1 inhibited the IGFBP-1 production. CONCLUSION The present study showed that in undifferentiated endometrial stromal cells, progestin increases the RLX receptor content to enhance the effect of RLX on the target gene (IGFBP-1). In decidual cells, RLX alone up-regulates its receptor, resulting in a large scale induction of IGFBP-1. TGFbeta1 has an inhibitory effect on LGR7 and IGFBP-1.
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Affiliation(s)
- J Mazella
- Department of Obstetrics and Gynecology, School of Medicine, State University of New York at Stony Brook, NY 11794-8091, USA
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Tseng L, DeSalles A, Diaz D, Cabatan-Awang C. 549 EFFECTS OF BASAL GANGLIA SURGERY ON MOVEMENT DISORDERS AND QUALITY OF LIFE FOR CEREBRAL PALSY PATIENTS. J Investig Med 2004. [DOI: 10.1136/jim-52-suppl1-549] [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: 11/04/2022]
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Gao J, Mazella J, Seppala M, Tseng L. Ligand activated hPR modulates the glycodelin promoter activity through the Sp1 sites in human endometrial adenocarcinoma cells. Mol Cell Endocrinol 2001; 176:97-102. [PMID: 11369448 DOI: 10.1016/s0303-7207(01)00450-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Human endometrium produces glycodelin-A (GdA). The GdA mRNA is highly expressed in progestin-sensitized human endometrial glandular epithelial cells. The mechanism of GdA gene expression, however, is not clear. To understand the cell specific GdA gene transcription, our first approach was to identify the cis-element in the GdA promoter using transfection assay in a human endometrial adenocarcinoma cell line (HEC-1B, a cell line originally derived from the glandular component of the endometrium). The GdA promoter (-1900 to +20 bp) was linked to the luciferase reporter gene to construct p1900Luc, along with two shorter promoter constructs, p1100Luc and p304Luc. Deletion analysis showed that the basal promoter activity was derived from the region between -304 to +20 bp. This region contains three putative Sp1 binding sites (Sp1-1, -243 to -238 bp; Sp1-2, -207 to -202 bp; and Sp1-3, -56 to -49 bp). Mutation analysis at the Sp1 sites showed that p304Spm2Luc and p304Spm3Luc reduced the activity by 80%, while p304Spm1-2-3Luc reduced the activity by 95%. Sp1-1 mutation, however, had no effect. These results showed that two of the three Sp1 cis-elements mediate the basal promoter activity of the GdA gene. Electrophoretic gel mobility shift showed that at least two specific binding proteins in the nuclear extracts of HEC-1B cells bound to the oligo containing Sp1-2 or Sp1-3 cis-element. Sp1 antibody reduced the specific binding complex by 70% suggesting that Sp1 transcription factor regulates GdA gene expression. In addition, over expression of Sp1 increased the promoter activity. To determine whether progestin would modulate the promoter activity, HEC-1B cells were transfected with p304Luc and with progesterone receptor (either hPR-A or hPR-B) expression vector. Medroxyprogesterone acetate increased the promoter activity (3-fold) derived from p304Luc but not from the mutant, p304Spm1-2-3Luc. In contrast, the promoter activity was slightly reduced in cells treated with estradiol and co-transfected with estrogen receptor expression vector. These data indicate that ligand-activated PR stimulates GdA gene expression mediated through the functional Sp1 sites.
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Affiliation(s)
- J Gao
- Department of Obstetrics/Gynecology and Reproductive Medicine, State University of New York at Stony Brook, Stony Brook, NY 11790, USA
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Wang J, Cheng J, Chan R, Tseng L, Chou K, Tang K, Chung Lee K, Lo Y, Wang J, Jan C. The anti-anginal drug fendiline increases intracellular Ca(2+) levels in MG63 human osteosarcoma cells. Toxicol Lett 2001; 119:227-33. [PMID: 11246176 DOI: 10.1016/s0378-4274(01)00262-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [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: 10/18/2022]
Abstract
The effect of fendiline, an anti-anginal drug, on cytosolic free Ca(2+) levels ([Ca(2+)](i)) in MG63 human osteosarcoma cells was explored by using fura-2 as a Ca(2+) indicator. Fendiline at concentrations between 1 and 200 microM increased [Ca(2+)](i) in a concentration-dependent manner and the signal saturated at 100 microM. The Ca(2+) signal was inhibited by 65+/-5% by Ca(2+) removal and by 38+/-5% by 10 microM nifedipine, but was unchanged by 10 microM La(3+) or verapamil. In Ca(2+)-free medium, pre-treatment with 1 microM thapsigargin (an endoplasmic reticulum Ca(2+) pump inhibitor) to deplete the endoplasmic reticulum Ca(2+) store inhibited fendiline-induced intracellular Ca(2+) release. The Ca(2+) release induced by 50 microM fendiline appeared to be independent of IP(3) because the [Ca(2+)](i) increase was unaltered by inhibiting phospholipase C with 2 microM U73122. Collectively, the results suggest that in MG63 cells fendiline caused an increase in [Ca(2+)](i) by inducing Ca(2+) influx and Ca(2+) release in an IP(3)-independent manner.
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Affiliation(s)
- J Wang
- Department of Physical Medicine and Rehabilitation, Kaohsiung Veterans General Hospital, 386 Ta Chung 1st Rd., 813, Kaohsiung, Taiwan
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Gao J, Mazella J, Tang M, Tseng L. Ligand-activated progesterone receptor isoform hPR-A is a stronger transactivator than hPR-B for the expression of IGFBP-1 (insulin-like growth factor binding protein-1) in human endometrial stromal cells. Mol Endocrinol 2000; 14:1954-61. [PMID: 11117526 DOI: 10.1210/mend.14.12.0564] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [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] [Indexed: 11/19/2022] Open
Abstract
In human endometrium, the levels of progesterone receptor (PR) isoforms hPR-A and hPR-B are differentially regulated during the reproductive cycle. Progesterone significantly increases the content of hPR-A, the predominant isoform in decidualized stromal cells (1). The purpose of this study was to determine the capacity of hPR-A and hPR-B to transactivate the progestin-dependent target gene in human endometrial stromal cells. We examined the effect of cotransfection of hPR-A or hPR-B on the expression of the human insulin-like growth factor binding protein-1 (IGFBP-1) in endometrial stromal cells. The primary culture of human endometrial stromal cells was transfected with the hPR-A or hPR-B expression vector and the IGFBP-1 promoter construct p275CAT, which contains two functional progesterone response elements (PRE1 and PRE2) in decidualized stromal cells. Medroxyprogesterone acetate (MPA) increased the promoter activities ranging from 1.2- to 27-fold in cells cotransfected with hPR-A or hPR-B in eight endometrial specimens. The promoter activity increased by the hPR-A was significantly higher than hPR-B (15 +/- 8 vs. 4 +/- 2, mean +/- SD; n = 8, P < 0.005). Site-specific mutation showed that the induced activity by hPR-A was mediated through the PRE1 and PRE2 sites. Addition of hPR-B reduced the effect of hPR-A. The high transactivation capacity of hPR-A was also activated by other ligands, progesterone, Org 2058, and norethindrone. These observations indicate that hPR-A is a stronger transactivator than hPR-B for the IGFBP-1 promoter in endometrial stromal cells. Previous studies have shown the progestin-dependent production of IGFBP-1 correlates with its mRNA levels and transcription rate. Thus, we have determined the effect of hPR-A and hPR-B on the production of IGFBP-1 in stromal cells treated with MPA. The production rate in cells uniformly infected with AdPRA (recombinant Ad5-directed PR expression system) was significantly higher (P < 0.001) than the rate in uninfected cells and in cells infected with AdPRB or AdCMV (the Ad5 viral expression vector). This result, in concert with the promoter analysis, provides evidence that hPR-A is a strong inducer for the chromosomal IGFBP-1 gene in endometrial stromal cells.
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Affiliation(s)
- J Gao
- Department of Obstetrics/Gynecology and Reproductive Medicine, School of Medicine, State University of New York at Stony Brook, 11794, USA
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Tseng L, Mazella J, Goligorsky MS, Rialas CM, Stefano GB. Dopamine and morphine stimulate nitric oxide release in human endometrial glandular epithelial cells. J Soc Gynecol Investig 2000; 7:343-7. [PMID: 11111069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
OBJECTIVE Previous studies have shown that human endometrial glandular epithelial cells contain endothelial nitric oxide synthase indicating that the endometrium might produce nitric oxide (NO). We conducted this study to identify stimuli that can activate a transient NO release from endometrial glandular epithelial cells because NO is an important intracellular and intercellular signal transduction pathway in reproductive cycle. METHODS Endometrial glandular epithelial cells, free of endothelial cells, were isolated from human endometrial specimens and maintained viable in RPMI 1640 medium with 2% fetal bovine serum for 2-4 days. Nitric oxide release from the glandular cells in response to stimuli was monitored continuously amperometrically. RESULTS Among the substances examined, we found that dopamine and morphine stimulated a transient surge of NO production that was dose-dependent, whereas estrogen, progesterone, or relaxin (RLX) had no short-term effect on NO release. Cells treated with RLX or dopamine for 4 days enhanced the dopamine-induced NO release fourfold to sixfold, with the peak of the NO surge shifting from 35 to 15 seconds. CONCLUSION Endometrial glandular cells were capable of producing NO. Dopamine and morphine were potent stimuli for a transient surge of NO release from endometrial glandular cells. Furthermore, prolonged exposure to dopamine or RLX enhanced the sensitivity of NO release in endometrial glands.
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Affiliation(s)
- L Tseng
- Department of Obstetrics/Gynecology, SUNY-Stony Brook, Stony Brook, New York, USA.
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Gao J, Mazella J, Tseng L. Partial characterization of the CCAAT box in the promoter of the hLGFBP-1 gene: interaction with negatively acting transcription factors in decidualized human endometrial stromal cells. Mol Cell Endocrinol 2000; 159:171-7. [PMID: 10687862 DOI: 10.1016/s0303-7207(99)00192-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The CCAAT cis-element and its adjacent DNA sequence (-82 to -52 bp) in the human insulin-like growth factor binding protein-1 gene (IGFBP-1) promoter are active in both decidualized human endometrial stromal cells and HepG2 cells. In HepG2 cells, CCAAT activity is mediated by interacting with hepatocyte nuclear factor, HNF-1. In endometrial cells, this region is protected by the nuclear extracts of endometrial decidual cells, however, the transactivator which interacts with the region has not been identified. This study was carried out to characterize and identify the stromal/decidual nuclear proteins that interact with the IGFBP-1 CCAAT motif. Gel shift analysis showed that the CCAAT motif (-82 to -52 bp) formed three specific complexes (CI, CII, and CIII) by extracts from human endometrial decidual or stromal cells. The intensity of CIII formed by the nuclear extracts of decidual cells was less compared to that formed by stromal cells whereas CI/CII was found to be opposite. To evaluate the transcription factors that bind to this region, a number of known CCAAT binding proteins were tested. Among them, the CCAAT binding proteins NF-Y (alpha2(1) collagen promoter CCAAT binding protein) and CBF (hsp70 promoter CCAAT binding protein), were characterized by the gel shift assay. The NF-Y consensus binding sequence (the alpha2(1) collagen promoter) and NF-YA,B antibody abolished or shifted CIII. Although the CBF consensus binding sequence (the hsp70 promoter) eliminated all three complexes, the antibody to CBF had no effect on all three complexes. The nuclear extracts of the endometrial stromal/decidual cells did not form a band corresponding to the HNF-1/CCAAT complex. These results indicate that the CCAAT motif binds to NF-Y and the CI/CII binding protein (remains to be identified) but not HNF-1 in endometrium. Systematic mutation in the CCAAT motif showed that NF-Y(CIII binding protein) bound to the 12 bp sequence GGCGCTGCCAAT(-79 to -68 bp) and the CI/CII binding protein bound to 9 bp, TGCCAATCA(-74 to -66 bp). These findings indicate that the CCAAT motif is a composite element. The CCAAT mediated function was analyzed in decidualized endometrial stromal cells. Mutations in the CCAAT motif increased the promoter activity. The maximum activity was found in mutants which abolished the NF-Y complex. The CCAAT core sequence mutants in which both CIII and CI/CII were abolished, also increased the promoter activity. Results indicated that NF-Y and the CI/CII binding protein, yet to be identified, interact with the composite CCAAT element in the IGFBP-1 promoter to repress the promoter activity in endometrial decidual cells.
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Affiliation(s)
- J Gao
- Department of Obstetrics/Gynecology and Reproductive Medicine School of Medicine, State University of New York at Stony Brook, 11794, USA
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Abstract
We have already reported that TRK-820, (-)-17-cyclopropylmethyl-3, 14b-dihydroxy-4, 5a-epoxy-6b-[N-methyl-trans-3-(3-furyl)acrylamido]morphinan hydrochloride, a new selective kappa-opioid receptor agonist, has affinity for kappa-subtype opioid receptors other than the kappa(1)-opioid receptor. It would be of interest to examine whether the different kappa-opioid receptor subtype properties of TRK-820 participate in its antinociceptive action in the inflamed paw test and the formalin test. TRK-820 produced a potent antinociceptive effect, which was inhibited by the selective kappa-opioid receptor antagonist nor-binaltorphimine, but not by the mu-opioid receptor antagonist naloxone in the mechanical paw pressure test. TRK-820 also produced a potent antinociceptive effect in rats with adjuvant-induced arthritis. TRK-820 and morphine, a prototype mu-opioid receptor agonist, were equally effective in inhibiting the nociceptive responses in the arthritic rats and in the normal rats, while ICI-199441, 2-(3, 4-dichlorophenyl)-N-methyl-N-[(1S)-1-phenyl-2-(1-pyrrolidinyl)ethyl]- acetamide, a kappa-opioid receptor agonist, was about 5-fold less potent in the arthritic rats than in the normal rats. In the formalin test TRK-820 had a very similar antinociceptive potency to that of ICI-199441, unlike in the arthritic rats in which TRK-820 was 2.5 times more potent than ICI-199441. It is concluded that TRK-820 produced a potent antinociceptive action via the stimulation of kappa-opioid receptors in rats. TRK-820 has a unique antinociceptive profile different from that of the other kappa-opioid receptor agonists such as ICI-199441 in arthritic rats.
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Affiliation(s)
- T Endoh
- Basic Research Laboratories, Toray Industries, 1111, Tebiro, Kamakura, Japan.
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Endoh T, Matsuura H, Tajima A, Izumimoto N, Tajima C, Suzuki T, Saitoh A, Suzuki T, Narita M, Tseng L, Nagase H. Potent antinociceptive effects of TRK-820, a novel kappa-opioid receptor agonist. Life Sci 1999; 65:1685-94. [PMID: 10573186 DOI: 10.1016/s0024-3205(99)00417-8] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.2] [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: 10/18/2022]
Abstract
TRK-820, a new type of 4,5-epoxymorphinan derivative, was investigated in vivo for antinociceptive activities and its selectivity on various opioid receptors in mice. TRK-820 given s.c. or p.o. was found to be 351- and 796-fold more potent than U50,488H with acetic acid-induced abdominal constriction test. The duration of the antinociceptive effect produced by TRK-820 was longer than that produced by mu-opioid receptor agonist morphine or other kappa-opioid receptor agonists. In addition, with four other antinociceptive assays, low temperature hot plate (51 degrees C), thermal tail flick, mechanical tail pressure and tail pinch tests, TRK-820 was also found to be 68- to 328-fold more potent than U-50488H, and 41- to 349-fold more potent than morphine in producing antinociception, as comparing the weight of the different compound. However, TRK-820 was less active in inhibiting the high temperature (55 degrees C) hot plate response. The antinociceptive effects produced by TRK-820 were inhibited by nor-BNI, but not by naloxone or naltrindole (NTI) with the abdominal constriction test, indicating that the antinociception is selectively mediated by the stimulation of kappa-, but not mu- or delta-opioid receptors. Co-administration of TRK-820 with morphine slightly enhanced the antinociception induced by morphine in the mouse hot plate test. On the other hand, pentazocine significantly reduced the morphine-induced antinociception. TRK-820 produced sedation at doses, which are much higher than the doses for producing antinociception. These results indicate that the potent antinociception induced by TRK-820 is mediated via the stimulation of kappa-, but not mu- or delta-opiod receptors.
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MESH Headings
- Administration, Oral
- Analgesics, Non-Narcotic/pharmacology
- Analgesics, Opioid/administration & dosage
- Analgesics, Opioid/pharmacology
- Animals
- Constriction, Pathologic/chemically induced
- Drug Interactions
- Hypnotics and Sedatives/pharmacology
- Injections, Subcutaneous
- Male
- Mice
- Morphinans/administration & dosage
- Morphinans/pharmacology
- Motor Activity/drug effects
- Nociceptors/drug effects
- Pentazocine/pharmacology
- Receptors, Opioid, kappa/agonists
- Receptors, Opioid, kappa/antagonists & inhibitors
- Spiro Compounds/administration & dosage
- Spiro Compounds/pharmacology
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Affiliation(s)
- T Endoh
- Basic Research Laboratories, Toray Industries, Inc., Kanagawa, Japan.
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Gao J, Mazella J, Suwanichkul A, Powell DR, Tseng L. Activation of the insulin-like growth factor binding protein-1 promoter by progesterone receptor in decidualized human endometrial stromal cells. Mol Cell Endocrinol 1999; 153:11-7. [PMID: 10459849 DOI: 10.1016/s0303-7207(99)00096-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Insulin-like growth factor binding protein-1 (IGFBP-1) is induced extensively when human endometrial stromal cells are decidualized by progestin and relaxin in a long-term primary culture system. The purpose of this study is to investigate whether progesterone receptor (PR) directly activates the IGFBP-1 gene promoter. In decidualized stromal cells, activity of the IGFBP-1 promoter (from -1.2 kb to +68 bp) containing putative progesterone-response elements (PREs) was increased 80-fold. Mutation of either 5' or 3' half-site of the putative PRE1 site (from -193 to -179 bp) reduced the promoter activity. Mutations that converted PRE1 closer to consensus PRE increased the promoter activity. In undifferentiated stromal cells, mutations of PRE sites had no effect on the promoter activity. When a PR expression vector (hPR1) was cotransfected, progestin increased promoter activity derived from p275CAT but not from p1.2CAT, suggesting that the function of PRE1 was repressed by the region from -1.2 kb to -275 bp in the promoter. Progestin did not increase promoter activity derived from p275CAT without cotransfection of hPR1, suggesting that endogenous PR alone is insufficient to activate PRE1. In summary, results indicate that the PRE1 site of the IGFBP-1 promoter mediates a direct activation of PR on transcription specifically in decidualized stromal cells.
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Affiliation(s)
- J Gao
- Department of Obstetrics and Gynecology, School of Medicine, State University of New York at Stony Brook, 11794, USA.
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Abstract
Synthesis of prolactin (PRL) in human endometrium extends from the late luteal phase of the menstrual cycle throughout the pregnancy. We have studied the hormonal requirements for the sustained production of PRL and its receptor (PRL-R) in a long-term primary cell culture system. Progestin stimulates the production PRL and its receptor when stromal cells transform into decidual cells. The rise in PRL production rate correlates with an increase in steady-state PRL mRNA levels which are caused by increased transcription rate gene. Replacing progestin by the antiprogestin, RU 486, causes a transient superinduction of PRL production followed by reduction to basal level of expression. On the other hand, RU 486 exerts immediate inhibition of PRL-receptor mRNA expression. In addition, relaxin (RLX) enhances PRL synthesis. The transcription of the PRL gene in endometrium is dependent upon the promotor 6-kb upstream of the transcription start site in the pituitary. That biological functions of PRL and its receptor are critical to implantation and the maintenance of pregnancy is suggested by the impaired fertility of PRL and PRL-R knockout mice. PRL enhances endometrial cell growth at low concentrations and inhibits it at high concentrations. This dual action indicates an autocrine action of PRL-R-mediated signaling transduction pathways during reproductive cycles and pregnancy. During gestation, decidual-derived prolactin regulates the volume of amniotic and fetal extracellular fluid and electrolytes.
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Affiliation(s)
- L Tseng
- Department of Obstetrics, Gynecology and Reproductive Medicine, State University of New York at Stony Brook 11794, USA
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Tseng L, Zhu HH, Mazella J, Koistinen H, Seppälä M. Relaxin stimulates glycodelin mRNA and protein concentrations in human endometrial glandular epithelial cells. Mol Hum Reprod 1999; 5:372-5. [PMID: 10321810 DOI: 10.1093/molehr/5.4.372] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [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: 11/13/2022] Open
Abstract
Human endometrium is the major organ that produces glycodelin A (GdA). The production of endometrial GdA causes a fluctuation of the peripheral glycodelin concentrations in women during the menstrual cycle and pregnancy. It has recently been reported that the rise of plasma concentrations of glycodelin is correlated with relaxin during the late luteal phase and early pregnancy. In addition, administration of relaxin increases glycodelin plasma concentrations, suggesting that relaxin induces GdA production in endometrium. To investigate whether relaxin regulates the GdA synthesis, human endometrial glandular epithelial cells were isolated and cultured with or without relaxin for up to 4 days. Western blot showed that GdA synthesized and secreted from epithelial glands had a major molecular weight of 28 kDa, i.e. the same as the GdA isolated from amniotic fluid. Cells incubated with relaxin consistently increased in GdA production rate (2-6-fold). The GdA mRNA concentrations increased 2-11-fold in cells incubated with relaxin for 2-4 days, as determined by solution hybridization/ribonuclease protection assay. The increase of the mRNA concentration indicates that relaxin activates GdA transcription.
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Affiliation(s)
- L Tseng
- Department of Obstetrics/Gynecology and Reproductive Medicine, State University of New York at Stony Brook, 11794, USA
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Bischof P, Meisser A, Campana A, Tseng L. Effects of decidua-conditioned medium and insulin-like growth factor binding protein-1 on trophoblastic matrix metalloproteinases and their inhibitors. Placenta 1998; 19:457-64. [PMID: 9778118 DOI: 10.1016/s0143-4004(98)91038-4] [Citation(s) in RCA: 38] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The regulatory role of in vitro decidualized stromal cells (DESCM) and their main secretory product insulin-like growth factor binding protein-1 (IGFBP-1) was studied on the secretion of trophoblastic gelatinases and tissue inhibitor of metalloproteinase (TIMP-1). First trimester cytotrophoblastic cells (CTB) were obtained from abortions and cultured in vitro in presence or absence of DESCM or IGFBP-1. Secreted gelatinases were analysed in the culture supernatants by zymography and by measurements of the total gelatinolytic activity. TIMP-1, hCG, and fetal fibronectin (fFN) were measured by commercially available immunoassays. DESCM inhibited the total gelatinolytic activity of CTB but increased trophoblastic MMP-9, TIMP-1 and fFN. In contrast, IGFBP-1 increased the total gelatinolytic activity and TIMP-1, had no effect on MMP-2 , MMP-9 or fFN but inhibited hCG. It is concluded that a factor secreted by decidual cells inhibits the gelatinolytic property of trophoblast by increasing TIMP-1. Other decidual factors, as yet unidentified, increase MMP-2 and MMP-9 to an extent which does override the inhibitory effect of TIMP-1. Since in contrast to DESCM, IGFBP-1 increases the total gelatinolytic activity of CTB, it cannot be the primary active decidual factor regulating the proteolytic activity of CTB. The possibility of an integrin-mediated effect of IGFBP-1 on CTB is discussed.
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Affiliation(s)
- P Bischof
- Department of Obstetrics and Gynaecology, University of Geneva, Switzerland.
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Tseng L, Zhu HH. Progestin, estrogen, and insulin-like growth factor-I stimulate the prolactin receptor mRNA in human endometrial stromal cells. J Soc Gynecol Investig 1998; 5:149-55. [PMID: 9614645 DOI: 10.1016/s1071-5576(97)00116-0] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To identify the expression of the prolactin receptor (PRL-R) mRNA in human endometrial stromal and glandular epithelial cells in order to ascertain the autocrine/paracrine actions of PRL and to determine the effect of steroid hormones and growth factor on PRL-R mRNA during decidualization. METHODS Human endometrial stromal cells and glandular epithelial cells were isolated from tissue fragments by collagenase digestion and total RNA was isolated. Stromal cells were cultured with or without progesterone (P) or medroxyprogesterone acetate (MPA) for various periods of time. Prolactin receptor and its mRNA were determined by Western blot analysis and solution hybridization/ribonuclease protection assay. The effects of estrogen, insulin-like growth factor (IGF)-I, and PRL on PRL-R mRNA were also studied. RESULTS Both types of endometrial cells expressed PRL-R mRNA. Prolactin receptor mRNA content in glandular cells was consistently much less than that in stromal cells (1 versus 5-12). Progesterone or MPA stimulated the PRL-R mRNA expression two- to greater than ten-fold in the stromal cells of eight endometrial specimens. Stimulation by progestin was concentration dependent and required at least 1-2 days' incubation. A high level of PRL-R mRNA was maintained in stromal cells beyond 10 days' incubation with progestin. The stimulatory effect of progestin was inhibited by RU 486 and by cycloheximide, suggesting that progestin-receptor interaction and de novo protein synthesis mediate the up-regulation. In addition, estradiol and IGF-I stimulated PRL-R mRNA. Western blot analysis showed that progestin increased the PRL-R protein. A 90-kd band previously identified as PRL-R was ubiquitously distributed in the soluble and particulate fractions of the stromal cells. CONCLUSION This study demonstrated that PRL-R mRNA is expressed in both types of endometrial cells and that PRL-R mRNA and its protein are up-regulated by progestin, estrogen, and IGF-I during decidualization of endometrial stromal cells.
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Affiliation(s)
- L Tseng
- Department of Obstetrics, Gynecology and Reproductive Medicine, State University of New York at Stony Brook 11794, USA.
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Abstract
Down-regulation of the progesterone receptor (PR) by its ligand has been demonstrated in breast cancer cell lines and in the rat uterus. However, in the stromal cells of endometrium, reduction of the PR level is not apparent in the luteal phase of the menstrual cycle. The purpose of this study was to determine the effect of progestin on PR and PR mRNA in isolated human endometrial stromal cells. Western blot analysis showed that progesterone or medroxyprogesterone acetate increased the two isoforms, PR-A and PR-B, in stromal cells but reduced them in glandular epithelial cells. Progestin increased the PR-A and PR-B mRNA by 2- to > 10-fold in the stromal cells of 12 specimens measured by solution hybridization-ribonuclease protection assay. A time study showed that the increase in PR mRNA required at least a 2- to 3-day incubation with progestin and that the high mRNA levels were maintained or increased slightly beyond 10 days of progestin incubation. The stimulatory effect of progestin was inhibited by RU-486 and by cycloheximide, suggesting that the up-regulation requires ligand binding to PR and de novo protein synthesis. Progestin also increased the stability of PR mRNA in endometrial stromal cells. These results demonstrated for the first time that progestin exerts an up-regulation of PR by increasing the steady-state level of PR mRNA specifically in human endometrial stromal cells. The up-regulation of PR by progestin may be mediated in part by progestin-induced endometrial stromal cell factors such as estrogen and insulin-like growth factor-I, both of which stimulated the PR-A and PR-B mRNA in stromal cells.
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Affiliation(s)
- L Tseng
- Department of Obstetrics, Gynecology and Reproductive Medicine, State University of New York at Stony Brook, 11794, USA.
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Abstract
We analyzed IGFBP-1 gene promoter activity by transient transfection during the progressive decidualization of human endometrial stromal cells. A time study over a 13-day culture period showed that the promoter activity increased exponentially to > 10(4) fold in cells treated with MPA and RLX correlating with the secretion rate and steady-state mRNA levels of the endogenous gene. Deletion analysis showed that two regions in the IGFBP-1 gene promoter are responsible for the activation of the IGFBP-1 gene. The basal promoter region between -1 and -300 bp contains multiple sections of functional elements homologous either to CRE, PRE, or CCAAT. The major difference of IGFBP-1 gene activation in endometrium and the hepatic system lies in the distal promoter region, between -2.6 and -3.4 kb, which mediates 95% of the total promoter activity derived from -3.3 kb to +68 bp. Functional and binding analysis in the distal promoter region showed that multiple Sp1 elements interacting with a novel Sp3 transcription factor activates the hIGFBP-1 gene promoter.
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Affiliation(s)
- L Tseng
- Department of Obstetrics, Gynecology and Reproductive Medicine, State University of New York at Stony Brook 11794, USA.
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Bischof P, Tseng L, Campana A. O-161. Modulation of trophoblastic invasion by the endometrium. Hum Reprod 1997. [DOI: 10.1093/humrep/12.suppl_2.78-b] [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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Gao J, Tseng L. Progesterone receptor (PR) inhibits expression of insulin-like growth factor-binding protein-1 (IGFBP-1) in human endometrial cell line HEC-1B: characterization of the inhibitory effect of PR on the distal promoter region of the IGFBP-1 gene. Mol Endocrinol 1997; 11:973-9. [PMID: 9178756 DOI: 10.1210/mend.11.7.9932] [Citation(s) in RCA: 11] [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: 02/04/2023] Open
Abstract
Progestin has been shown to have both stimulatory and inhibitory effects on the expression of insulin-like growth factor binding protein-1 (IGFBP-1) in human endometrial cells. In this study, progestin was found to reduce levels of secreted IGFBP-1 and IGFBP-1 messenger RNA and IGFBP-1 promoter activity after stably transfecting a progesterone receptor (PR; B form) expression vector into HEC-1B cells. Deletion analysis of the IGFBP-1 promoter revealed that PR specifically inhibited promoter activity derived from a 59-bp distal BsaHI/RsaI fragment. It was concluded that PR inhibited the promoter activity through protein-protein interactions based on the facts that 1) no progesterone-responsive element was revealed by a series block mutation in the BsaHI/RsaI fragment; 2) PR bound by the antiprogesterone ZK98299 inhibited IGFBP-1 promoter activity; 3) a DNA-binding mutant of PR inhibited the IGFBP-1 promoter activity; and 4) in an in vivo competition assay, the DNA-binding domain of PR did not release the inhibitory effect of intact PR. Analysis of PR deletion mutants indicated that both transcriptional activation domains of PR (TAF-1 and TAF-2) were involved in the inhibition of IGFBP-1 expression. Thus, our data may explain the superinduction of IGFBP-1 in human endometrial cells after progestin withdrawal or progestin replacement with antiprogestin.
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Affiliation(s)
- J Gao
- Department of Obstetrics and Gynecology, School of Medicine, State University of New York, Stony Brook 11794, USA
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Gao J, Tseng L. Distal Sp3 binding sites in the hIGBP-1 gene promoter suppress transcriptional repression in decidualized human endometrial stromal cells: identification of a novel Sp3 form in decidual cells. Mol Endocrinol 1996; 10:613-21. [PMID: 8776721 DOI: 10.1210/mend.10.6.8776721] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 02/02/2023] Open
Abstract
The purpose of this study was to identify the nuclear components that account for a dramatic transcriptional induction of the human insulin-like growth factor binding protein-1 (IGFBP-1) gene in decidualized human endometrial stromal cells. The study focused on the functional analysis and binding characteristics of the two distal promoter regions, 132 bp -2.732 to -2.6 kb [C/al/Xbal, (CX) fragment] and 30 bp [-2830 to -2800 bp, Hincll/ Sphl [HS] fragment]. In the primary culture of endometrial stromal cells, we have examined the three cis-elements, I, II and III, in the 58-bp BsaHl/ Rsal (BR) fragment (a promoter fragment that resides in CX) previously identified in HEC-1B cells. When pBRPL (BR 5'-linked to -2600 to +68 bp IGFBP-1 promoter/chloramphenicol acetyl transferase gene) was transfected into cells, only cis-element II (-2660 to -2638 bp) mediated the activation, whereas I and III (-2675 to -2666 bp and -2637 to -2628 bp) were inactive in both unstimulated and hormone-stimulated endometrial stromal cells. Promoter activity derived from pCXPL was repressed in unstimulated cells. During decidualization of endometrial stromal cells, the repression was gradually diminished, which was mediated by cis-element I and III. The binding pattern of the BR fragment analyzed by electrophoretic mobility shift assay using nuclear extracts of decidual tissue or cells showed three major specific binding complexes, C1, C2, and C3, which were abolished by a complementary oligonucleotide of the Sp1-binding motif dose-dependently. Only two complexes, C2 and C3, were formed by nuclear extracts of unstimulated stromal cells. A binding study with mutated BR fragment showed that the binding sites of C1, C2, and C3 resided at cis-elements I and III. The Sp3 antibody abolished complexes C1, C2, and C3. The Sp1 and Sp4 antibodies, however, had little effect. The other distal promoter region, 30-bp HS fragment, which contains a core sequence homologous to the Sp1-binding motif, formed a complex with mobility similar to C1. It is transcriptionally active only in decidualized stromal cells. The binding protein of this complex recognized the Sp3 antibody. Immunoblot analysis of the nuclear extracts of stromal and decidual cells showed that Sp3 antibody identified 120-, 82-, and 80-kDa Sp3 proteins. An additional 28-kDa Sp3 protein was present only in the extract of decidual cells. These findings suggest that decidual Sp3 protein may be responsible, at least in part, for the transcriptional regulation in decidualized endometrial stromal cells.
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Affiliation(s)
- J Gao
- Department of Obstetrics, Gynecology and Reproductive Medicine, State University of New York at Stony Brook 11794, USA
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