51
|
Paredes E, Avazeri E, Malard V, Vidaud C, Ortega R, Nonell A, Isnard H, Chartier F, Bresson C. A new procedure for high precision isotope ratio determinations of U, Cu and Zn at nanogram levels in cultured human cells: What are the limiting factors? Talanta 2018; 178:894-904. [DOI: 10.1016/j.talanta.2017.10.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 10/16/2017] [Accepted: 10/21/2017] [Indexed: 01/16/2023]
|
52
|
Rivas J, Neira V, Mena J, Brito B, Garcia A, Gutierrez C, Sandoval D, Ortega R. Identification of a divergent genotype of equine arteritis virus from South American donkeys. Transbound Emerg Dis 2017; 64:1655-1660. [PMID: 28921885 DOI: 10.1111/tbed.12703] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Indexed: 11/28/2022]
Abstract
A novel equine arteritis virus (EAV) was isolated and sequenced from feral donkeys in Chile. Phylogenetic analysis indicates that the new virus and South African asinine strains diverged at least 100 years from equine EAV strains. The results indicate that asinine strains belonged to a different EAV genotype.
Collapse
|
53
|
Perrin L, Roudeau S, Carmona A, Domart F, Petersen JD, Bohic S, Yang Y, Cloetens P, Ortega R. Zinc and Copper Effects on Stability of Tubulin and Actin Networks in Dendrites and Spines of Hippocampal Neurons. ACS Chem Neurosci 2017; 8:1490-1499. [PMID: 28323401 DOI: 10.1021/acschemneuro.6b00452] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Zinc and copper ions can modulate the activity of glutamate receptors. However, labile zinc and copper ions likely represent only the tip of the iceberg and other neuronal functions are suspected for these metals in their bound state. We performed synchrotron X-ray fluorescence imaging with 30 nm resolution to image total biometals in dendrites and spines from hippocampal neurons. We found that zinc is distributed all along the dendrites while copper is mainly pinpointed within the spines. In spines, zinc content is higher within the spine head while copper is higher within the spine neck. Such specific distributions suggested metal interactions with cytoskeleton proteins. Zinc supplementation induced the increase of β-tubulin content in dendrites. Copper supplementation impaired the β-tubulin and F-actin networks. Copper chelation resulted in the decrease of F-actin content in dendrites, drastically reducing the number of F-actin protrusions. These results indicate that zinc is involved in microtubule stability whereas copper is essential for actin-dependent stability of dendritic spines, although copper excess can impair the dendritic cytoskeleton.
Collapse
|
54
|
Solas TJ, Mejía IA, Olave SM, Berrocal JC, Cadenas FL, Martín LG, Guijo AR, Sánchez-Guijo F, Ortega R, Del Cañizo C, Hernández ÁH, Campelo MD. Iron Overload Increases Oxidative Stress and Decreases Clonogenic Capacity of Cells in MDS Patients: Can be Restored after Deferasirox Treatment? Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30395-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
55
|
Rosenthal VD, Al-Abdely HM, El-Kholy AA, AlKhawaja SAA, Leblebicioglu H, Mehta Y, Rai V, Hung NV, Kanj SS, Salama MF, Salgado-Yepez E, Elahi N, Morfin Otero R, Apisarnthanarak A, De Carvalho BM, Ider BE, Fisher D, Buenaflor MCS, Petrov MM, Quesada-Mora AM, Zand F, Gurskis V, Anguseva T, Ikram A, Aguilar de Moros D, Duszynska W, Mejia N, Horhat FG, Belskiy V, Mioljevic V, Di Silvestre G, Furova K, Ramos-Ortiz GY, Gamar Elanbya MO, Satari HI, Gupta U, Dendane T, Raka L, Guanche-Garcell H, Hu B, Padgett D, Jayatilleke K, Ben Jaballah N, Apostolopoulou E, Prudencio Leon WE, Sepulveda-Chavez A, Telechea HM, Trotter A, Alvarez-Moreno C, Kushner-Davalos L, Desse J, Maurizi D, Montanini A, Chaparro G, Stagnaro J, Romani A, Bianchi A, Álvarez G, Palaoro A, Bernan M, Cabrera-Montesino R, Domínguez C, Rodríguez C, Silva C, Bogdanowicz E, Riera F, Benchetrit G, Perez I, Vimercati J, Marcos L, Ramasco L, Caridi M, Oyola M, Rodríguez M, Spadaro M, Olivieri M, Saul P, Juarez P, Pérez R, Botta P, Quintana D, Ríos A, Stagnaro J, Chediack V, Chilon W, Alsayegh AI, Yaseen FH, Hani LF, Sowar SF, Magray TA, Medeiros E, Alves De Oliveira A, Romario-Mendes A, Fernandes-Valente C, Santos C, Escudeiro D, Azevedo-Ferreira Lima D, Azevedo-Pereira D, Onzi-Siliprandi E, Serpa-Maia F, Aguiar-Leitao F, Assuncao-Ponte G, Dos Anjos-Lima J, Olszewski J, Harten Pinto Coelho K, Alves De Lima L, Mendonca M, Maciel-Canuto Amaral M, Tenorio M, Gerah S, Andrade-Oliveira-Reis M, Moreira M, Ximenes-Rocha Batista M, Campos-Uchoa R, Rocha-Vasconcelos Carneiro R, Amaral De Moraes R, Do Nascimento S, Moreira-Matos T, Lima-De Barros Araujo T, De Jesus Pinheiro-Bandeira T, Machado-Silva V, Santos Monteiro W, Hristozova E, Kostadinov E, Angelova K, Velinova V, Dicheva V, Guo X, Ye G, Li R, Song L, Liu K, Liu T, Song G, Wang C, Yang X, Yu H, Yang Y, Martínez A, Vargas-García A, Lagares-Guzmán A, González A, Linares C, Ávila-Acosta C, Santofimio D, Yepes-Gomez D, Marin-Tobar D, Mazo-Elorza D, Chapeta-Parada E, Camacho-Moreno G, Roncancio-Vill G, Valderrama-Marquez I, Ruiz-Gallardo J, Ospina-Martínez J, Osorio J, Marín-Uribe J, López J, Gualtero S, Rojas J, Gomez-Nieto K, Rincon L, Meneses-Ovallos L, Canas-Giraldo L, Burgos-Florez L, Amaral-Almeida Costa M, Rodriguez M, Barahona-Guzmán N, Mancera-Paez O, Rios-Arana P, Ortega R, Romero-Torres S, Pulido-Leon S, Valderrama S, Moreno-Mejia V, Raigoza-Martinez W, Villamil-Gomez W, Pardo-Lopez Y, Argüello-Ruiz A, Solano-Chinchilla A, Muñoz-Gutierrez G, Calvo-Hernández I, Maroto-Vargas L, Zuniga M, Valverde-Hernandez M, Chavarria-Ugalde O, Herrera B, Díaz C, Bovera M, Cevallos C, Pelaez C, Jara E, Delgado V, Coello-Gordon E, Picoita F, Guerrero-Toapant F, Valencia F, Santacruz G, Gonzalez H, Pazmino L, Garcia M, Arboleda M, Lascano M, Alquinga N, Ramírez V, Yousef RH, Moustafa AEM, Ahmed A, Elansary A, Ali AM, Hasanin A, Messih AA, Ramadan A, El Awady B, Hassan D, Abd El Aziz D, Hamza H, Agha HM, Ghazi IA, ElKholy J, Fattah MA, Elanany M, Mansour M, Haleim M, Fouda R, El-Sherif RH, Bekeit S, Bayani V, Elkholy Y, Abdelhamid Y, Salah Z, Rivera D, Chawla A, Manked A, Azim A, Mubarak A, Thakur A, Dharan A, Patil A, Sasidharan A, Bilolikar AK, Anirban Karmakar A, Mathew A, Kulkarni A, Agarwal A, Sriram A, Dwivedy A, Dasgupta A, Bhakta A, Suganya AR, Poojary A, Mani AK, Sakle A, Abraham BK, Padmini B, Ramachandran B, Ray B, Pati BK, Chaudhury BN, Mishra BM, Biswas S, Saibala MB, Jawadwala BQ, Rodrigues C, Modi C, Patel C, Khanna D, Devaprasad D, Divekar D, Aggarwal DG, Divatia J, Zala D, Pathrose E, Abubakar F, Chacko F, Gehlot G, Khanna G, Sale H, Roy I, Shelgaonkar J, Sorabjee J, Eappen J, Mathew J, Pal J, Varma K, Joshi KL, Sandhu K, Kelkar R, Ranganathan L, Pushparaj L, Lavate M, Latha M, Suryawanshi M, Bhattacharyya M, Kavathekar M, Agarwal MK, Patel M, Shah M, Sivakumar M, Kharbanda M, Bej M, Potdar M, Chakravarthy M, Karpagam M, Myatra S, Gita N, Rao N, Sen N, Ramakrishnan N, Jaggi N, Saini N, Pawar N, Modi N, Pandya N, Mohanty N, Thakkar P, Joshi P, Sahoo PK, Nair PK, Kumar PS, Patil P, Mukherjee P, Mathur P, Shah P, Sukanya R, Arjun R, Chawla R, Gopalakrishnan R, Venkataraman R, Raut S, Krupanandan R, Tejam R, Misra R, Debroy R, Saranya S, Narayanan S, Mishra S, Saseedharan S, Sengupta S, Patnaik S, Sinha S, Blessymole S, Rohra S, Rajagopal S, Mukherjee S, Sengupta S, John S, Bhattacharya S, Sijo, Bhattacharyya S, Singh S, Sohanlal T, Vadi S, Dalal S, Todi S, Kumar S, Kansal S, Misra S, Bhattacharyya S, Nirkhiwale S, Purkayastha SK, Mukherjee S, Singh S, Sahu S, Sharma S, Kumar S, Basu S, Shetty S, Shah S, Singhal T, Francis T, Anand T, Venkateshwar V, Thomas V, Kothari V, Velupandi, Kantroo V, Sitohang G, Kadarsih R, Sanaei A, Maghsudi B, Sabetian G, Masjedi M, Alebouyeh M, Sherafat SJ, Mohamed YK, Al Khamis A, Alsaadi AS, Al-Jarie AA, Mutwalli AH, Rillorta A, Thomas A, Kelany A, Manao A, Alamri DM, Santiago E, Cruzpero E, Sawan FA, Al Qasmah FA, Alabdaly H, Al-Dossary HA, Ahmed H, Roshdi H, Al-Alkami HY, Hanafi H, Ammari HE, Hani HMA, Asiri IAA, Mendoza JA, Philipose J, Selga JO, Kehkashan, Ghalilah KM, Redito LS, Josph L, Al-Alawi M, Al-Gethamy MM, Madco M, Manuel M, Girvan M, Aldalaton M, De Guzman M, Alkhamaly M, Masfar M, Karrar MAA, Al Azmi MM, Quisai ML, Torres MM, Al-Abdullah N, Tawfic NA, Elsayed N, Abdulkhalik NS, Bugis NA, Ariola NC, Gad N, Alghosn N, Tashkandi N, Zharani NA, De Vera P, Krishnan R, Al Shehri RH, Jaha RNA, Thomas R, Cresencia RL, Penuliar R, Lozada R, Al Qahtani S, Twfik S, Al Faraj SH, El-Sherbiny S, Alih SJB, Briones S, Bukhari SZ, Alotaibi TSA, Gopal U, Nair U, Abdulatif WA, Hussain WM, Demotica WM, Spahija G, Baftiu N, Gashi A, Omar AA, Mohamed A, Rebello F, Almousa HH, Abdo NM, George S, Khamis S, Thomas S, Ahmad Zaatari A, Anwar Al Souheil A, Ayash H, Zeid I, Tannous J, Zahreddine N, Ahmadieh R, Mahfouz T, Kardas T, Tanzi V, Kanafani Z, Hammoud Z, Dagys A, Grinkeviciute D, Kevalas R, Kondratas T, Petrovska M, Popovska K, Mitrev Z, Miteva ZB, Jankovska K, Guroska ST, Gan CS, Othman AA, Yusof AM, Abidin ASZ, Aziz FA, Weng FK, Zainol H, Bakar KBA, Lum LCS, Mansor M, Zaman MK, Jamaluddin MFH, Hasan MS, Rahman RA, Zaini RHM, Zhazali R, Sri Ponnampala SSL, Chuah SL, Shukeri WFWM, Hassan WNW, Yusoff WNW, Mat WRW, Cureno-Diaz M, Aguirre-Avalos G, Flores-Alvarado A, Cerero-Gudino A, Zamores-Pedroza A, Cano-Munoz B, Hernandez-Chena B, Carreon-Martinez C, Coronado-Magana H, Corona-Jimenez F, Rodriguez-Noriega E, Alcala-Martinez E, Gonzalez-Diaz E, Guerra-Infante F, Arteaga-Troncoso G, Martinez-Falcon G, Leon-Garnica G, Delgado-Aguirre H, Perez-Gomez H, Sosa-Gonzalez I, Galindo-Olmeda J, Ayala-Gaytan J, Rodriguez-Pacheco J, Zamorano-Flores L, Lopez-Pulgarin J, Miranda-Novales M, Ramírez M, Lopez-Hurtado M, Lozano M, Gomez M, Sanchez-Castuera M, Kasten-Monges M, Gonzalez-Martinez M, Sanchez-Vargas M, Culebro-Burguet M, Altuzar-Figueroa M, Mijangos-Mendez J, Ramires O, Espinosa O, De Leon-Escobedo R, Salas-Flores R, Ruiz-Rendon R, Petersen-Morfin S, Aguirre-Diaz S, Esparza-Ahumada S, Vega-Gonzalez S, Gaona-Flores V, Monroy-Colin V, Cruz-Rivera Z, Bat-Erdene A, Narankhuu B, Choijamts B, Tuvdennyam B, Batkhuu B, Chuluunchimeg K, Enkhtsetseg D, Batjargal G, Bayasgalan G, Dorj M, Mendsaikhan N, Baatar O, Suvderdene P, Baigalmaa S, Khajidmaa T, Begzjav T, Tsuyanga, Ariyasuren Z, Zeggwagh A, Berechid K, Abidi K, Madani N, Abouqal R, Koirala A, Giri R, Sainju S, Acharya SP, Ahmed A, Raza A, Parveen A, Sultan F, Khan M, Paul N, Daud N, Yusuf S, Nizamuddin S, Garcia-Mayorca E, Castaño E, Moreno-Castillo J, Ballinas-Aquino J, Lara L, Vargas M, Rojas-Bonilla M, Ramos S, Mapp T, De Iturrado V, La Hoz Vergara C, Linares-Calderon C, Moreno D, Ramirez E, Ramírez Wong F, Montenegro-Orrego G, Sandoval-Castillo H, Pichilingue-Chagray J, Mueras-Quevedo J, Aibar-Yaranga K, Castillo-Bravo L, Santivanez-Monge L, Mayorga-Espichan M, Rosario-Tueros M, Changano-Rodriguez M, Salazar-Ramirez N, Marquez-Mondalgo V, Tajanlangit ALN, Tamayo AS, Llames CMJP, Labro E, Dy AP, Fortin J, Bergosa L, Salvio L, Bermudez V, Sg-Buenaflor M, Trajano M, Mendoza M, Javellana O, Maglente R, Arreza-Galapia Y, Navoa-Ng J, Kubler A, Barteczko-Grajek B, Dragan B, Zurawska M, Mikaszewska-Sokolewicz M, Zielinska M, Ramos-Ortiz G, Florin-Rogobete A, Vlad CD, Muntean D, Sandesc D, Papurica M, Licker M, Bedreag OH, Popescu R, Grecu S, Dumitrascu V, Molkov A, Galishevskiy D, Furman M, Simic A, Lekic D, Ristic G, Eremija J, Kojovic J, Nikolic L, Bjelovic M, Lesnakova A, Hlinkova S, Gamar-Elanbya M, Supa N, Prasan P, Pimathai R, Wanitanukool S, Somabutr S, Ben-Jaballah N, Borgi A, Bouziri A, Dilek A, Oncul A, Kaya A, Demiroz AP, Gunduz A, Ozgultekin A, Inan A, Yalcin A, Ramazanoglu A, Engin A, Willke A, Meco BC, Aygun C, Bulut C, Uzun C, Becerik C, Hatipoglu CA, Guclu CY, Ozdemir D, Yildizdas D, Ugurcan D, Azak E, Guclu E, Yilmaz EM, Sebnem-Erdinc F, Sirmatel F, Ulger F, Sari F, Kizilates F, Usluer G, Ceylan G, Ersoz G, Kaya G, Ertem GT, Senol G, Agin H, Cabadak H, Yilmaz H, Sungurtekin H, Zengin H, Turgut H, Ozgunes I, Devrim I, Erdem I, Işcanlı IGE, Bakir MM, Geyik M, Oral M, Meric M, Cengiz M, Ozcelik M, Altindis M, Sunbul M, Elaldi N, Kuyucu N, Unal N, Oztoprak N, Yasar N, Erben N, Bayram N, Dursun O, Karabay O, Coskun O, Horoz OO, Turhan O, Sandal OS, Tekin R, Esen S, Erdogan SY, Unal S, Karacorlu S, Sen S, Sen S, Sacar S, Yarar V, Oruc Y, Sahip Y, Kaya Z, Philip A, Elhoufi A, Alrahma H, Sachez E, Perez F, Empaire G, Vidal H, Montes-Bravo L, Guzman Siritt M, Orozco N, Navarrete N, Ruiz Y, De Anez ZDG, Van Trang DT, Minh DQ, Co DX, Anh DPP, Thu LTA, Tuyet LTD, Nguyet LTT, Chau NU, Binh NG, Tien NP, Anh NQ, Hang PT, Hanh TTM, Hang TTT, Thu TA, Thoa VTH. International Nosocomial Infection Control Consortium report, data summary of 50 countries for 2010-2015: Device-associated module. Am J Infect Control 2016; 44:1495-1504. [PMID: 27742143 DOI: 10.1016/j.ajic.2016.08.007] [Citation(s) in RCA: 217] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 08/29/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND We report the results of International Nosocomial Infection Control Consortium (INICC) surveillance study from January 2010-December 2015 in 703 intensive care units (ICUs) in Latin America, Europe, Eastern Mediterranean, Southeast Asia, and Western Pacific. METHODS During the 6-year study period, using Centers for Disease Control and Prevention National Healthcare Safety Network (CDC-NHSN) definitions for device-associated health care-associated infection (DA-HAI), we collected prospective data from 861,284 patients hospitalized in INICC hospital ICUs for an aggregate of 3,506,562 days. RESULTS Although device use in INICC ICUs was similar to that reported from CDC-NHSN ICUs, DA-HAI rates were higher in the INICC ICUs: in the INICC medical-surgical ICUs, the pooled rate of central line-associated bloodstream infection, 4.1 per 1,000 central line-days, was nearly 5-fold higher than the 0.8 per 1,000 central line-days reported from comparable US ICUs, the overall rate of ventilator-associated pneumonia was also higher, 13.1 versus 0.9 per 1,000 ventilator-days, as was the rate of catheter-associated urinary tract infection, 5.07 versus 1.7 per 1,000 catheter-days. From blood cultures samples, frequencies of resistance of Pseudomonas isolates to amikacin (29.87% vs 10%) and to imipenem (44.3% vs 26.1%), and of Klebsiella pneumoniae isolates to ceftazidime (73.2% vs 28.8%) and to imipenem (43.27% vs 12.8%) were also higher in the INICC ICUs compared with CDC-NHSN ICUs. CONCLUSIONS Although DA-HAIs in INICC ICU patients continue to be higher than the rates reported in CDC-NSHN ICUs representing the developed world, we have observed a significant trend toward the reduction of DA-HAI rates in INICC ICUs as shown in each international report. It is INICC's main goal to continue facilitating education, training, and basic and cost-effective tools and resources, such as standardized forms and an online platform, to tackle this problem effectively and systematically.
Collapse
|
56
|
Barbarroja N, Ruiz-Limόn P, Perez-Sanchez C, Jimenez-Gomez Y, Abalos-Aguilera M, Arias de la Rosa I, Segui P, Font P, Aguirre M, Calvo J, Ortega R, Castro M, Gonzalez-Conejero R, Martinez C, Collantes-Estevez E, Escudero A, Lopez-Pedrera C. OP0310 Association of Neutrophil Extracellular Traps with Atherosclerosis in Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
57
|
Ruiz-Limon P, Perez-Sanchez C, Arias de la Rosa I, Jimenez-Gomez Y, Abalos-Aguilera M, Caracuel M, Font P, Ortega R, Calvo J, Castro M, Collantes-Estevez E, Escudero A, Lopez-Pedrera C, Barbarroja N. FRI0056 Altered Microrna Expression Pattern in Synovial and Blood Neutrophils in Rheumatoid Arthritis Reveals The Pathogenic Profile of These Cells. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
58
|
Ruiz-Limon P, Barbarroja N, Ortega R, Perez-Sanchez C, Jimenez-Gomez Y, Abalos-Aguilera M, Arias de la Rosa I, Font P, Aguirre M, Castro M, Calvo J, Collantes-Estevez E, Escudero A, Lopez-Pedrera C. FRI0046 TCZ Attenuates Atherothrombosis through The Specific Inhibition of Netosis and Monocyte-Mediated Proinflammatory Activity. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
59
|
Barbarroja N, Ruiz-Limon P, Perez-Sanchez C, Jimenez-Gomez Y, Abalos-Aguilera M, Arias de la Rosa I, Segui P, Font P, Aguirre M, Calvo J, Ortega R, Castro M, Collantes-Estevez E, Escudero A, Lopez-Pedrera C. AB0104 Role of CD14+ and CD16+ Monocyte Subtypes in The Atherothrombosis Associated with Rheumatoid Arthritis: Epigenetic Mechanisms Involved. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
60
|
Espinoza JL, Gonzàlez Peña D, Palacios Espinoza A, Ortega R, Guillèn A. Genetic parameters of days open in Charolais cattle of Cuba. REV COLOMB CIENC PEC 2016. [DOI: 10.17533/udea.rccp.v29n1a02] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
61
|
Gädicke P, Junod T, López-Martin J, Ortega R, Monti G. Enfermedades abortigénicas en lecherías de la Provincia de Nuble: prevalencia y análisis espacial. ACTA ACUST UNITED AC 2016. [DOI: 10.4067/s0301-732x2016000100003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
62
|
Roudeau S, Chevreux S, Carmona A, Ortega R. Reduced net charge and heterogeneity of pI isoforms in familial amyotrophic lateral sclerosis mutants of copper/zinc superoxide dismutase. Electrophoresis 2015; 36:2482-8. [PMID: 26084641 DOI: 10.1002/elps.201500187] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/23/2015] [Accepted: 05/25/2015] [Indexed: 01/20/2023]
Abstract
Familial cases of amyotrophic lateral sclerosis (fALS) are related to mutations of copper/zinc superoxide dismutase 1 (SOD1). Aggregation of SOD1 plays a central role in the pathogenesis of fALS and altered metallation of SOD1 mutants could be involved in this process. Using IEF gel electrophoresis under non-denaturating conditions and particle induced X-ray emission (PIXE) analysis, we studied the pI distribution and metallation status of fALS SOD1 mutants (A4V, G93A, D125H) compared to human wild-type (hWT). SOD1 fALS mutants are characterized by a variable number of isoforms and higher pI compared to hWT, reflecting a reduced net charge that might explain their greater propensity to precipitation and aggregation. Cu/Zn ratios were slightly different for the predominant expressed isoforms of A4V, G93A, and D125H mutants compared to hWT. Differences in metallation were observed within each genotype, the more basic isoforms exhibiting lower Cu/Zn ratios. Moreover, we revealed the existence of a pool of fALS mutants SOD1 pI isoforms, slightly expressed (<10%), with a low Cu/Zn ratio and high pI values. Overall, IEF-PIXE results suggest that the toxicity of SOD1 mutants should be studied at the pI isoform level with a particular attention to the species with the lowest charges.
Collapse
|
63
|
Barbarroja N, Ruiz-Limon P, Perez-Sanchez C, Jimenez-Gomez Y, Abalos-Aguilera M, Font P, Aguirre M, Segui P, Calvo J, Ortega R, Collantes-Estevez E, Escudero A, Lopez-Pedrera R. AB0133 Role of Monocytes Subsets in the Atherothrombosis and Endothelial Dysfunction Associated with Rheumatoid Arthritis: Beneficial Effects of Tocilizumab. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
64
|
Ruiz-Limon P, Jimenez-Gomez Y, Perez-Sanchez C, Abalos-Aguilera M, Aguirre M, Calvo J, Ortega R, Collantes-Estevez E, Escudero A, Lopez-Pedrera C, Barbarroja N. AB0134 Role of Macrophages in the Cardiovascular Disease Associated to Rheumatoid Arthritis: Effects of Anti-CCPS in the Phenotypic Switching and the Insulin Signalling. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
65
|
Ortega R, Carmona A, Roudeau S, Perrin L, Dučić T, Carboni E, Bohic S, Cloetens P, Lingor P. α-Synuclein Over-Expression Induces Increased Iron Accumulation and Redistribution in Iron-Exposed Neurons. Mol Neurobiol 2015; 53:1925-1934. [DOI: 10.1007/s12035-015-9146-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 03/18/2015] [Indexed: 12/16/2022]
|
66
|
Ihlemann N, Landex N, Soeholm H, Hassager C, Gustafsson F, Matshela MR, Butz T, Faber L, Brand M, Wiemer M, Piper C, Noelke J, Sasko B, Horstkotte D, Trappe H, Cruz I, Dymarkowski S, Bogaert J, Kudaiberdiev T, Strachinaru M, Catez E, Jousten I, Pavel O, Janssen C, Morissens M, Gazagnes MD, Rodriguez Diego S, Delgado M, Ruiz M, Pardo L, Hidalgo FJ, Romo E, Ortega R, Mesa D, Suarez De Lezo Cruz Conde J. Oral Abstract session: Pericardial diseases, masses and sources of embolism: Thursday 4 December 2014, 11:00-12:30 * Location: Agora. Eur Heart J Cardiovasc Imaging 2014. [DOI: 10.1093/ehjci/jeu244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
67
|
Turco A, Duchenne J, Nuyts J, Gheysens O, Voigt JU, Claus P, Vunckx K, Muhtarov K, Ozer N, Turk G, Sunman H, Karakulak U, Sahiner L, Kaya B, Yorgun H, Hazirolan T, Aytemir K, Warita S, Kawasaki M, Tanaka R, Houle H, Yagasaki H, Nagaya M, Ono K, Noda T, Watanabe S, Minatoguchi S, Kyle A, Dauphin C, Lusson JR, Dragoi Galrinho R, Rimbas R, Ciobanu A, Marinescu B, Cinteza M, Vinereanu D, Dragoi Galrinho R, Ciobanu A, Rimbas R, Marinescu B, Cinteza M, Vinereanu D, Aparina O, Stukalova O, Butorova E, Makeev M, Bolotova M, Parkhomenko D, Golitsyn S, Zengin E, Hoffmann BA, Ramuschkat M, Ojeda F, Weiss C, Willems S, Blankenberg S, Schnabel RB, Sinning CR, Schubert U, Suhai FI, Toth A, Kecskes K, Czimbalmos C, Csecs I, Maurovich-Horvat P, Simor T, Merkely B, Vago H, Slawek D, Chrzanowski L, Krecki R, Binkowska A, Kasprzak JD, Palombo C, Morizzo C, Kozakova M, Charisopoulou D, Koulaouzidis G, Rydberg A, Henein M, Kovacs A, Olah A, Lux A, Matyas C, Nemeth B, Kellermayer D, Ruppert M, Birtalan E, Merkely B, Radovits T, Henri C, Dulgheru R, Magne J, Kou S, Davin L, Nchimi A, Oury C, Pierard L, Lancellotti P, Sahin ST, Cengiz B, Yurdakul S, Altuntas E, Aytekin V, Aytekin S, Bajraktari G, Ibrahimi P, Bytyci I, Ahmeti A, Batalli A, Elezi S, Henein M, Pavlyukova E, Tereshenkova E, Karpov R, Barbier P, Mirea O, Guglielmo M, Savioli G, Cefalu C, Maltagliati M, Tumasyan L, Adamyan K, Chilingaryan A, Tunyan L, Kowalik E, Klisiewicz A, Biernacka E, Hoffman P, Park C, Yi J, Cho J, Ihm S, Kim H, Cho E, Jeon H, Jung H, Youn H, Mcghie J, Menting M, Vletter W, Roos-Hesselink J, Geleijnse M, Van Der Zwaan H, Van Den Bosch A, Spethmann S, Baldenhofer G, Stangl V, Baumann G, Stangl K, Laule M, Dreger H, Knebel F, Erdei T, Edwards J, Braim D, Yousef Z, Fraser A, Keramida K, Kouris N, Kostopoulos V, Kostakou P, Petrogiannos C, Olympios C, Bajraktari G, Berisha G, Bytyci I, Ibrahimi P, Rexhepaj N, Henein M, Wdowiak-Okrojek K, Shim A, Wejner-Mik P, Szymczyk E, Michalski B, Kasprzak J, Lipiec P, Tarr A, Stoebe S, Pfeiffer D, Hagendorff A, Haykal M, Ryu S, Park J, Kim S, Choi J, Goh C, Byun Y, Choi J, Sonoko M, Onishi T, Fujimoto W, Yamada S, Taniguchi Y, Yasaka Y, Kawai H, Okura H, Sakamoto Y, Murata E, Kanai M, Kataoka T, Kimura T, Watanabe N, Kuriyama N, Nakama T, Furugen M, Sagara S, Koiwaya H, Ashikaga K, Matsuyama A, Shibata Y, Meimoun P, Abouth S, Martis S, Boulanger J, Elmkies F, Zemir H, Tzvetkov B, Luycx-Bore A, Clerc J, Galli E, Oger E, Guirette Y, Daudin M, Fournet M, Donal E, Galli E, Guirette Y, Mabo P, Donal E, Keramida K, Kouris N, Kostopoulos V, Psarrou G, Petrogiannos C, Hatzigiannis P, Olympios C, Igual Munoz B, Erdociain Perales M, Maceira Gonzalez Alicia A, Vazquez Sanchez A, Miro Palau V, Alonso Fernandez P, Donate Bertolin L, Estornell Erill J, Cervera A, Montero Argudo Anastasio A, Okura H, Koyama T, Maehama T, Imai K, Yamada R, Kume T, Neishi Y, Caballero Jimenez L, Garcia-Navarro M, Saura D, Oliva M, Gonzalez-Carrillo J, Espinosa M, Valdes M, De La Morena G, Venkateshvaran A, Sola S, Dash PK, Annappa C, Manouras A, Winter R, Brodin L, Govind SC, Laufer-Perl L, Topilsky Y, Stugaard M, Koriyama H, Katsuki K, Masuda K, Asanuma T, Takeda Y, Sakata Y, Nakatani S, Marta L, Abecasis J, Reis C, Dores H, Cafe H, Ribeiras R, Andrade M, Mendes M, Goebel B, Hamadanchi A, Schmidt-Winter C, Otto S, Jung C, Figulla H, Poerner T, Kim DH, Sun B, Jang J, Choi H, Song JM, Kang DH, Song JK, Zakhama L, Slama I, Boussabah E, Antit S, Herbegue B, Annabi M, Jalled A, Ben Ameur W, Thameur M, Ben Youssef S, O' Grady H, Gilmore M, Delassus P, Sturmberger T, Ebner C, Aichinger J, Tkalec W, Eder V, Nesser H, Caggegi AM, Scandura S, Capranzano P, Grasso C, Mangiafico S, Ronsivalle G, Dipasqua F, Arcidiacono A, Cannata S, Tamburino C, Chapman M, Henthorn R, Surikow S, Zoontjens J, Stocker B, Mclean T, Zeitz CJ, Fabregat Andres O, Estornell-Erill J, Ridocci-Soriano F, De La Espriella R, Albiach-Montanana C, Trejo-Velasco B, Perdomo-Londono D, Facila L, Morell S, Cortijo-Gimeno J, Kouris N, Keramida K, Kostopoulos V, Psarrou G, Kostakou P, Olympios C, Kuperstein R, Blechman I, Freimatk D, Arad M, Ochoa JP, Fernandez A, Vaisbuj F, Salmo F, Fava A, Casabe H, Guevara E, Fernandes A, Cateano F, Almeida I, Silva J, Trigo J, Botelho A, Sanches C, Venancio M, Goncalves L, Schnell F, Daudin M, Oger E, Bouillet P, Mabo P, Carre F, Donal E, Petrella L, Fabiani D, Paparoni S, De Remigis F, Tomassoni G, Prosperi F, Napoletano C, Marchel M, Serafin A, Kochanowski J, Steckiewicz R, Madej-Pilarczyk A, Filipiak K, Opolski G, Abid L, Ben Kahla S, Charfeddine S, Kammoun S, Monivas Palomero V, Mingo Santos S, Goirigoizarri Artaza J, Rodriguez Gonzalez E, Restrepo Cordoba A, Rivero Arribas B, Garcia Lunar I, Gomez Bueno M, Sayago Silva I, Segovia Cubero J, Zengin E, Radunski UK, Klusmeier M, Ojeda F, Rybczynski M, Barten M, Muellerleile K, Reichenspurner H, Blankenberg S, Sinning CR, Romano G, Licata P, Tuzzolino F, Clemenza F, Di Gesaro G, Hernandez Baravoglia C, Scardulla C, Pilato M, Hashimoto G, Suzuki M, Yoshikawa H, Otsuka T, Isekame Y, Iijima R, Hara H, Nakamura M, Sugi K, Melnikova M, Krestjyaninov M, Ruzov V, Magnino C, Omede' P, Avenatti E, Presutti D, Moretti C, Ravera A, Sabia L, Gaita F, Veglio F, Milan A, Magda S, Mincu R, Soare A, Mihai C, Florescu M, Mihalcea D, Cinteza M, Vinereanu D, Chatzistamatiou E, Mpampatseva Vagena I, Manakos K, Moustakas G, Konstantinidis D, Memo G, Mitsakis O, Kasakogias A, Syros P, Kallikazaros I, Petroni R, Acitelli A, Cicconetti M, Di Mauro M, Altorio S, Romano S, Petroni A, Penco M, Apostolovic S, Stanojevic D, Jankovic-Tomasevic R, Salinger-Martinovic S, Pavlovic M, Djordjevic-Radojkovic D, Tahirovic E, Dungen H, Jung IH, Byun YS, Goh CW, Kim BO, Rhee KJ, Lee DS, Kim MJ, Seo HS, Kim HY, Tsverava M, Tsverava D, Zaletova T, Shamsheva D, Parkhomenko O, Bogdanov A, Derbeneva S, Leotescu A, Tudor I, Gurghean A, Bruckner I, Plaskota K, Trojnarska O, Bartczak A, Grajek S, Sharma P, Sharma D, Garg S, Vazquez Lopez-Ibor J, Monivas Palomero V, Solano-Lopez J, Zegri Reiriz I, Dominguez Rodriguez F, Gonzalez Mirelis J, Mingo Santos S, Sayago I, Garcia Pavia P, Segovia Cubero J, Florescu M, Mihalcea D, Magda S, Radu E, Chirca A, Acasandrei A, Jinga D, Mincu R, Enescu O, Vinereanu D, Saura Espin D, Caballero Jimenez L, Oliva Sandoval M, Gonzalez Carrillo J, Garcia Navarro M, Espinosa Garcia M, Valdes Chavarri M, De La Morena Valenzuela G, Abul Fadl A, Mourad M, Campanale CM, Di Maria S, Mega S, Nusca A, Marullo F, Di Sciascio G, Pardo Gonzalez L, Delgado M, Ruiz M, Rodriguez S, Hidalgo F, Ortega R, Mesa D, Suarez De Lezo Cruz Conde J, Bengrid TM, Zhao Y, Henein M, Kenjaev S, Alavi A, Kenjaev M, Mendes L, Lima S, Dantas C, Melo I, Madeira V, Balao S, Alves H, Baptista E, Mendes P, Santos J, Scali M, Mandoli G, Simioniuc A, Massaro F, Di Bello V, Marzilli M, Dini F, Cifra B, Dragulescu A, Friedberg M, Mertens L, Scali M, Bayramoglu A, Tasolar H, Otlu Y, Hidayet S, Kurt F, Dogan A, Pekdemir H, Stefani L, Galanti G, De Luca A, Toncelli L, Pedrizzetti G, Gopal AS, Saha S, Toole R, Kiotsekoglou A, Cao J, Reichek N, Ho SJ, Hung SC, Chang FY, Liao JN, Niu DM, Yu WC, Nemes A, Kalapos A, Domsik P, Forster T, Siarkos M, Sammut E, Lee L, Jackson T, Carr-White G, Rajani R, Kapetanakis S, Jarvinen V, Sipola P, Madeo A, Piras P, Evangelista A, Giura G, Dominici T, Nardinocchi P, Varano V, Chialastri C, Puddu P, Torromeo C, Sanchis Ruiz L, Montserrat S, Obach V, Cervera A, Bijnens B, Sitges M, Charisopoulou D, Banner NR, Rahman-Haley S, Imperadore F, Del Greco M, Jermendy A, Horcsik D, Horvath T, Celeng C, Nagy E, Bartykowszki A, Tarnoki D, Merkely B, Maurovich-Horvat P, Jermendy G, Whitaker J, Demir O, Walton J, Wragg A, Alfakih K, Karolyi M, Szilveszter B, Raaijmakers R, Giepmans W, Horvath T, Merkely B, Maurovich-Horvat P, Koulaouzidis G, Charisopoulou D, Mcarthur T, Jenkins P, Henein M, Silva T, Ramos R, Oliveira M, Marques H, Cunha P, Silva M, Barbosa C, Sofia A, Pimenta R, Ferreira R, Al-Mallah M, Alsaileek A. Poster session 5: Friday 5 December 2014, 14:00-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2014. [DOI: 10.1093/ehjci/jeu257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
68
|
Roudeau S, Carmona A, Perrin L, Ortega R. Correlative organelle fluorescence microscopy and synchrotron X-ray chemical element imaging in single cells. Anal Bioanal Chem 2014; 406:6979-91. [PMID: 25023971 DOI: 10.1007/s00216-014-8004-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 06/18/2014] [Accepted: 06/26/2014] [Indexed: 02/05/2023]
Abstract
X-ray chemical element imaging has the potential to enable fundamental breakthroughs in the understanding of biological systems because chemical element interactions with organelles can be studied at the sub-cellular level. What is the distribution of trace metals in cells? Do some elements accumulate within sub-cellular organelles? What are the chemical species of the elements in these organelles? These are some of the fundamental questions that can be addressed by use of X-ray chemical element imaging with synchrotron radiation beams. For precise location of the distribution of the elements, identification of cellular organelles is required; this can be achieved, after appropriate labelling, by use of fluorescence microscopy. As will be discussed, this approach imposes some limitations on sample preparation. For example, standard immunolabelling procedures strongly modify the distribution of the elements in cells as a result of the chemical fixation and permeabilization steps. Organelle location can, however, be performed, by use of a variety of specific fluorescent dyes or fluorescent proteins, on living cells before cryogenic fixation, enabling preservation of element distribution. This article reviews the methods used for fluorescent organelle labelling and X-ray chemical element imaging and speciation of single cells. Selected cases from our work and from other research groups are presented to illustrate the potential of the combination of the two techniques.
Collapse
|
69
|
Senabre Gallego J, Rosas J, Salas Heredia E, Santos Soler G, Llinares Tello F, Santos Ramírez C, Sánchez Barrioluengo M, Barber X, Ortega R, Pons A, Cano C, Lorente M. AB0977 Prevalence of Subclinical Synovitis Detected by Ultrasound in Rheumatoid Arthritis and Psoriatic Arthritis Patients Receiving Anti-TNF Therapy with Extended Interval of Administration: Table 1. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
70
|
Llinares-Tello F, Rosas J, Senabre-Gallego J, Molina J, Salas E, Santos-Soler G, Santos Ramírez C, Ortega R, Barber X, Pons A, Cano C, Lorente M, Sánchez-Barrioluengo M. THU0166 Usefulness of the Acid Dissociation in Inmunogenicity Detection in Patients in Treatment with Anti-TNF Drugs. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
71
|
Bruxelles L, Clarke RJ, Maire R, Ortega R, Stratford D. Stratigraphic analysis of the Sterkfontein StW 573 Australopithecus skeleton and implications for its age. J Hum Evol 2014; 70:36-48. [DOI: 10.1016/j.jhevol.2014.02.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 02/07/2014] [Accepted: 02/11/2014] [Indexed: 10/25/2022]
|
72
|
Ortega R, Bresson C, Darolles C, Gautier C, Roudeau S, Perrin L, Janin M, Floriani M, Aloin V, Carmona A, Malard V. Low-solubility particles and a Trojan-horse type mechanism of toxicity: the case of cobalt oxide on human lung cells. Part Fibre Toxicol 2014; 11:14. [PMID: 24669904 PMCID: PMC3994290 DOI: 10.1186/1743-8977-11-14] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 03/18/2014] [Indexed: 11/18/2022] Open
Abstract
Background The mechanisms of toxicity of metal oxide particles towards lung cells are far from being understood. In particular, the relative contribution of intracellular particulate versus solubilized fractions is rarely considered as it is very challenging to assess, especially for low-solubility particles such as cobalt oxide (Co3O4). Methods This study was possible owing to two highly sensitive, independent, analytical techniques, based on single-cell analysis, using ion beam microanalysis, and on bulk analysis of cell lysates, using mass spectrometry. Results Our study shows that cobalt oxide particles, of very low solubility in the culture medium, are readily incorporated by BEAS-2B human lung cells through endocytosis via the clathrin-dependent pathway. They are partially solubilized at low pH within lysosomes, leading to cobalt ions release. Solubilized cobalt was detected within the cytoplasm and the nucleus. As expected from these low-solubility particles, the intracellular solubilized cobalt content is small compared with the intracellular particulate cobalt content, in the parts-per-thousand range or below. However, we were able to demonstrate that this minute fraction of intracellular solubilized cobalt is responsible for the overall toxicity. Conclusions Cobalt oxide particles are readily internalized by pulmonary cells via the endo-lysosomal pathway and can lead, through a Trojan-horse mechanism, to intracellular release of toxic metal ions over long periods of time, involving specific toxicity.
Collapse
|
73
|
Carmona A, Roudeau S, Perrin L, Veronesi G, Ortega R. Environmental manganese compounds accumulate as Mn(ii) within the Golgi apparatus of dopamine cells: relationship between speciation, subcellular distribution, and cytotoxicity. Metallomics 2014; 6:822-32. [DOI: 10.1039/c4mt00012a] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
74
|
Bresson C, Darolles C, Carmona A, Gautier C, Sage N, Roudeau S, Ortega R, Ansoborlo E, Malard V. Cobalt chloride speciation, mechanisms of cytotoxicity on human pulmonary cells, and synergistic toxicity with zinc. Toxicol Lett 2013. [DOI: 10.1016/j.toxlet.2013.05.363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
75
|
Bresson C, Darolles C, Carmona A, Gautier C, Sage N, Roudeau S, Ortega R, Ansoborlo E, Malard V. Cobalt chloride speciation, mechanisms of cytotoxicity on human pulmonary cells, and synergistic toxicity with zinc. Metallomics 2013; 5:133-43. [PMID: 23505636 DOI: 10.1039/c3mt20196a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Cobalt is used in numerous industrial sectors, leading to occupational diseases, particularly by inhalation. Cobalt-associated mechanisms of toxicity are far from being understood and information that could improve knowledge in this area is required. We investigated the impact of a soluble cobalt compound, CoCl(2)·6H(2)O, on the BEAS-2B lung epithelial cell line, as well as its impact on metal homeostasis. Cobalt speciation in different culture media, in particular soluble and precipitated cobalt species, was investigated via theoretical and analytical approaches. The cytotoxic effects of cobalt on the cells were assessed. Upon exposure of BEAS-2B cells to cobalt, intracellular accumulation of cobalt and zinc was demonstrated using direct in situ microchemical analysis based on ion micro-beam techniques and analysis after cell lysis by inductively coupled plasma mass spectrometry (ICP-MS). Microchemical imaging revealed that cobalt was rather homogeneously distributed in the nucleus and in the cytoplasm whereas zinc was more abundant in the nucleus. The modulation of zinc homeostasis led to the evaluation of the effect of combined cobalt and zinc exposure. In this case, a clear synergistic increase in toxicity was observed as well as a substantial increase in zinc content within cells. Western blots performed under the same coexposure conditions revealed a decrease in ZnT1 expression, suggesting that cobalt could inhibit zinc release through the modulation of ZnT1. Overall, this study highlights the potential hazard to lung function, of combined exposure to cobalt and zinc.
Collapse
|