Rodés Berta, Poveda Eva, Soriano Vincent
Department of Infectious Diseases, Hospital Carlos III, Instituto de Salud Carlos III, Madrid, Spain.
J Clin Microbiol. 2002 Nov;40(11):4313-6. doi: 10.1128/JCM.40.11.4313-4316.2002.
A bacteriophage lambda-based method was used to investigate the development of resistance to protease inhibitors (PI) in one subject infected with human immunodeficiency virus (HIV) type 1 group O who underwent multiple treatment regimens over a period of 4 years. A reduction in the susceptibility to indinavir of 6-fold and a reduction in the susceptibility to saquinavir of 24-fold were recognized after long exposure to these drugs with respect to baseline. The emergence of PI resistance corresponded to the selection of amino acid changes L10V, G48M, F53L, I54V, and L90M at the protease. The results were concordant with those obtained by a drug susceptibility assay with primary HIV isolates.
采用基于λ噬菌体的方法,对一名感染1型O组人类免疫缺陷病毒(HIV)的受试者进行了研究,该受试者在4年期间接受了多种治疗方案,以调查其对蛋白酶抑制剂(PI)的耐药性发展情况。与基线相比,长期接触这些药物后,发现茚地那韦敏感性降低了6倍,沙奎那韦敏感性降低了24倍。PI耐药性的出现与蛋白酶处氨基酸变化L10V、G48M、F53L、I54V和L90M的选择相对应。结果与用原发性HIV分离株进行的药物敏感性试验所得结果一致。