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Field evaluation in Chad of community usage of CD4 T lymphocyte counting by alternative single-platform flow cytometry
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  • 作者:Donato Koyalta (28)
    Mohammad-Ali Jenabian (29)
    Barou Djouater (30)
    No?l Djemadji-Oudjeil (31)
    Francois-Xavier Mbopi-Keou (32)
    Angélique Ndjoyi-Mbiguino (33)
    Laurent Bélec (34)
  • 关键词:Flow cytometry ; CD4 T cell count ; CD45 ; Decentralization ; Sub ; Saharan Africa ; Chad
  • 刊名:BMC Health Services Research
  • 出版年:2013
  • 出版时间:December 2013
  • 年:2013
  • 卷:13
  • 期:1
  • 全文大小:372 KB
  • 参考文献:1. UNAIDS: / Global report on the global AIDS epidemic. 2012. Available at http://www.unaids.org/en/media/unaids/contentassets/documents/epidemiology/2012/gr2012/20121120_UNAIDS_Global_Report_2012_en.pdf
    2. World Health Organization: / Towards Universal Access Scaling up priority HIV/AIDS interventions in the health sector. 2010. Available at: http://www.who.int/hiv/pub/2010progressreport/summary_en.pdf
    3. World Health Organization: / World Health Organization (WHO) recommendations. Antiretroviral therapy for HIV infection in infants and children: toward universal access. 2010. http://whqlibdoc.who.int/publications/2010/9789241599801_eng.pdf
    4. World Health Organization: / World Health Organization (WHO) recommendations antiretroviral therapy for HIV infection in adults and adolescents. Antiretroviral therapy for a public health approach 2010 revision. 2010. http://whqlibdoc.who.int/publications/2010/9789241599764_eng.pdf
    5. World Health Organization: / Consolidated guidelines on the use of antiretroviral drugs for treating and preventing HIV infection. Recommendations for a public health approach. 2013. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf
    6. Belec L, Bonn JP: Challenges in implementing HIV laboratory monitoring in resource-constrained settings: how to do more with less. / Future Microbiol 2011,6(11):1251-260. CrossRef
    7. Belec L, Mbopi-Keou FX, Gershy-Damet GM, Mboup S: HIV laboratory monitoring for effective ART in Africa. / Lancet Infect Dis 2012,12(6):430. CrossRef
    8. Dieye TN, Vereecken C, Diallo AA, Ondoa P, Diaw PA, Camara M, Karam F, Mboup S, Kestens L: Absolute CD4 T-cell counting in resource-poor settings: direct volumetric measurements versus bead-based clinical flow cytometry instruments. / J Acquir Immune Defic Syndr 2005,39(1):32-7. CrossRef
    9. Murtagh MM: / UNITAIDS Technical Report. HIV/AIDS diagnostic landscape. 2011. http://www.unitaid.eu/images/marketdynamics/publications/unitaid_md_technical_report_diagnostics_landscape_web.pdf
    10. O’Gorman MR, Zijenah LS: CD4 T cell measurements in the management of antiretroviral therapy–A review with an emphasis on pediatric HIV-infected patients. / Cytometry B Clin Cytom 2008,74(Suppl 1):S19-S26.
    11. Dieye TN, Diaw PA, Daneau G, Wade D, Sylla Niang M, Camara M, Diallo AA, Toure Kane C, Diop Ndiaye H, Mbengue B, / et al.: Evaluation of a flow cytometry method for CD4 T cell enumeration based on volumetric primary CD4 gating using thermoresistant reagents. / J Immunol Methods 2011,372(1-):7-3. CrossRef
    12. Hoffman RA, Kung PC, Hansen WP, Goldstein G: Simple and rapid measurement of human T lymphocytes and their subclasses in peripheral blood. / Proc Natl Acad Sci USA 1980,77(8):4914-917. CrossRef
    13. Brando B, Barnett D, Janossy G, Mandy F, Autran B, Rothe G, Scarpati B, D’Avanzo G, D’Hautcourt JL, Lenkei R, / et al.: Cytofluorometric methods for assessing absolute numbers of cell subsets in blood. European Working Group on Clinical Cell Analysis. / Cytometry 2000,42(6):327-46. CrossRef
    14. Mercolino TJ, Connelly MC, Meyer EJ, Knight MD, Parker JW, Stelzer GT, DeChirico G: Immunologic differentiation of absolute lymphocyte count with an integrated flow cytometric system: a new concept for absolute T cell subset determinations. / Cytometry 1995,22(1):48-9. CrossRef
    15. Glencross D, Scott LE, Jani IV, Barnett D, Janossy G: CD45-assisted PanLeucogating for accurate, cost-effective dual-platform CD4+ T-cell enumeration. / Cytometry 2002,50(2):69-7. CrossRef
    16. Pattanapanyasat K, Shain H, Noulsri E, Lerdwana S, Thepthai C, Prasertsilpa V, Likanonsakul S, Yothipitak P, Nookhai S, Eksaengsri A: A multicenter evaluation of the PanLeucogating method and the use of generic monoclonal antibody reagents for CD4 enumeration in HIV-infected patients in Thailand. / Cytometry B Clin Cytom 2005,65(1):29-6.
    17. Pattanapanyasat K, Shain H, Prasertsilpa V, Noulsri E, Lerdwana S, Eksaengsri A: Low cost CD4 enumeration using generic monoclonal antibody reagents and a two-color user-defined MultiSET protocol. / Cytometry B Clin Cytom 2006,70(5):355-60.
    18. Janossy G, Jani IV, Bradley NJ, Bikoue A, Pitfield T, Glencross DK: Affordable CD4(+)-T-cell counting by flow cytometry: CD45 gating for volumetric analysis. / Clin Diagn Lab Immunol 2002,9(5):1085-094.
    19. Sippy-Chatrani N, Marshall S, Branch S, Carmichael-Simmons K, Landis RC, Abayomi A: Performance of the Panleucogating protocol for CD4+ T cell enumeration in an HIV dedicated laboratory facility in Barbados. / Cytometry B Clin Cytom 2008,74(Suppl 1):S65-S68.
    20. Storie I, Sawle A, Whitby L, Goodfellow K, Granger V, Reilly JT, Barnett D: Flow rate calibration II: a clinical evaluation study using PanLeucoGating as a single-platform protocol. / Cytometry B Clin Cytom 2003,55(1):8-3. CrossRef
    21. Mbopi-Keou FX, Mion S, Sagnia B, Belec L: Validation of a single-platform, volumetric, CD45-assisted PanLeucogating Auto40 flow cytometer to determine the absolute number and percentages of CD4 T cells in resource-constrained settings using Cameroonian patients-samples. / Clin Vaccine Immunol 2012,19(4):609-15. CrossRef
    22. Mbopi-Keou FX, Sagnia B, Ngogang J, Angwafo FF 3rd, Colizzi V, Montagnier L, Belec L: Validation of a single-platform, volumetric, flow cytometry for CD4 T cell count monitoring in therapeutic mobile unit. / J Transl Med 2012, 10:22. CrossRef
    23. Koyalta D, Jenabian MA, Nadjiouroum N, Djouater B, Djemadji-Oudjeil N, Ndjoyi-Mbiguino A, Belec L: Single-platform, volumetric, CD45-assisted pan-leucogating flow cytometry for CD4 T lymphocytes monitoring of HIV infection according to the WHO recommendations for resource-constrained settings. / BMC Research Notes 2013, 6:169. CrossRef
    24. Simson E, Groner W: Variability in absolute lymphocyte counts obtained by automated cell counters. / Cytometry 1995,22(1):26-4. CrossRef
    25. Charpentier C, Koyalta D, Ndinaromtan M, Tchobkreo B, Jenabian MA, Day N, Si-Mohamed A, Weiss H, Belec L: Distribution of HIV-1 and HSV-2 epidemics in Chad revealing HSV-2 hot-spot in regions of high-risk HIV spread. / J Infect Dev Ctries 2011,5(1):64-7.
    26. Vidal N, Koyalta D, Richard V, Lechiche C, Ndinaromtan T, Djimasngar A, Delaporte E, Peeters M: High genetic diversity of HIV-1 strains in Chad, West Central Africa. / J Acquir Immune Defic Syndr 2003,33(2):239-46. CrossRef
    27. Koyalta D, Charpentier C, Beassamda J, Rey E, Si-Mohamed A, Djemadji-Oudjeil N, Belec L: High frequency of antiretroviral drug resistance among HIV-infected adults receiving first-line highly active antiretroviral therapy in N’Djamena Chad. / Clin Infect Dis 2009,49(1):155-59. CrossRef
    28. Cassens U, Gohde W, Kuling G, Groning A, Schlenke P, Lehman LG, Traore Y, Servais J, Henin Y, Reichelt D, / et al.: Simplified volumetric flow cytometry allows feasible and accurate determination of CD4 T lymphocytes in immunodeficient patients worldwide. / Antivir Ther 2004,9(3):395-05.
    29. Pattanapanyasat K, Phuang-Ngern Y, Sukapirom K, Lerdwana S, Thepthai C, Tassaneetrithep B: Comparison of 5 flow cytometric immunophenotyping systems for absolute CD4+ T-lymphocyte counts in HIV-1-infected patients living in resource-limited settings. / J Acquir Immune Defic Syndr 2008,49(4):339-47. CrossRef
    30. Barbesti S, Soldini L, Carcelain G, Guignet A, Colizzi V, Mantelli B, Corvaglia A, Tran-Minh T, Dorigatti F, Autran B, / et al.: A simplified flow cytometry method of CD4 and CD8 cell counting based on thermoresistant reagents: implications for large scale monitoring of HIV-infected patients in resource-limited settings. / Cytometry B Clin Cytom 2005,68(1):43-1.
    31. Larsen CH: The fragile environments of inexpensive CD4+ T-cell enumeration in the least developed countries: strategies for accessible support. / Cytometry B Clin Cytom 2008,74(Suppl 1):S107-S116.
    32. Mbopi-Keou FX, Ongolo-Zogo P, Angwafo F 3rd, Ndumbe PM, Belec L: High impact of mobile units for mass HIV testing in Africa. / AIDS 2007,21(14):1994-996. CrossRef
    33. Jani V, Janossy G, Iqbal A, Mhalu FS, Lyamuya EF, Biberfeld G, Glencross DK, Scott L, Reilly JT, Granger V, / et al.: Affordable CD4+ T cell counts by flow cytometry. II. The use of fixed whole blood in resource-poor settings. / J Immunol Methods 2001,257(1-):145-54. CrossRef
    34. Bergeron M, Ding T, Houle G, Ares L, Chabot C, Soucy N, Seely P, Sherring A, Bogdanovic D, Faucher S, / et al.: QASI, an international quality management system for CD4 T-cell enumeration focused to make a global difference. / Cytometry B Clin Cytom 2010,78(1):41-8.
    35. Mandy F, Bergeron M, Houle G, Bradley J, Fahey J: Impact of the international program for Quality Assessment and Standardization for Immunological Measures Relevant to HIV/AIDS: QASI. / Cytometry 2002,50(2):111-16. CrossRef
    36. Glencross DK, Aggett HM, Stevens WS, Mandy F: African regional external quality assessment for CD4 T-cell enumeration: development, outcomes, and performance of laboratories. / Cytometry B Clin Cytom 2008,74(Suppl 1):S69-S79.
    37. The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1472-6963/13/373/prepub
  • 作者单位:Donato Koyalta (28)
    Mohammad-Ali Jenabian (29)
    Barou Djouater (30)
    No?l Djemadji-Oudjeil (31)
    Francois-Xavier Mbopi-Keou (32)
    Angélique Ndjoyi-Mbiguino (33)
    Laurent Bélec (34)

    28. Ministère de la Santé Publique, BP 407, N’Djamena, Chad
    29. Chronic Viral Illness Service and Research Institute, McGill University Health Centre, Montreal, Canada
    30. Conseil National de Lutte contre le SIDA, Primature, N’Djamena, Chad
    31. Organisation Mondiale de la Santé, Représentation du Tchad, N’Djamena, Chad
    32. National Public Health Laboratory, Ministry of Public Health, University of Yaounde I, Yaounde, Cameroon
    33. Laboratoire National de Référence des Maladies Sexuellement Transmissibles et du SIDA, Département de Microbiologie, Faculté de Médecine de Libreville, Université des Sciences de la Santé, Libreville, Gabon
    34. Laboratoire de virologie, h?pital Européen Georges Pompidou, and Faculté de Médecine Paris Descartes, Université Paris Descartes (Paris V), Sorbonne Paris Cité, Paris, France
  • ISSN:1472-6963
文摘
Background Field and community evaluation of the routine usage of CD4 T counting platforms is essential in resource-poor countries for efficient and cost-effective monitoring of HIV-infected adults and children attending health care centers. Methods We herein addressed the principal issues raised by the implementation of the single-platform, volumetric Auto40 flow cytometer (Apogee Flow Systems Ltd, Hemel Hempstead, UK) in 8 community HIV monitoring laboratories of different levels throughout Chad. This is a country with particularly difficult conditions, both in terms of climate and vast geographical territory, making the decentralization of the therapeutic management of HIV-infected patients challenging. Results The routine usage of the Auto40 flow cytometers for a period of 5?years (2008-013) confirms the reliability and robustness of the analyzer for community-based CD4 T cell enumeration in terms of both absolute numbers and percentages to enable accurate monitoring of HIV-infected adults and children. However, our observations suggest that the Auto40 mini flow cytometer is not suitable for all laboratories as it is oversized and ultimately very expensive. Conclusion The Chad experience with the Auto40 flow cytometer suggests that its usage in resource-limited settings should be mainly reserved to reference (level 1) or district (level 2) laboratories, rather than to laboratories of health care centres (level 3).

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