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人类基因治疗需要在靶细胞适时、适量、安全的产生具有疗效的药物,这些正好是定量药理学的研究范畴.重组腺相关病毒载体(rAAV)具有的各种特性以及近来在规模化制备方面取得的进展使其逐渐成为基因治疗的理想载体.超过60项以AAV为载体的基因治疗已经完成或正在展开.其中,rAAV载体的剂量与基因表达效率以及临床疗效之间的关系是研究者关注的焦点之一.多数研究认为,在一定的剂量范围内,基因表达水平具有剂量依赖性.然而,基因表达水平同时还受病毒载体构型、组织趋向性、细胞靶向性、注射途径,甚至患者的年龄、性别等条件影响,基因表达水平还可受到其他药物的调控.因此,基因治疗实验过程中应结合定量药理学深入展开,解决基因治疗中的定量与药效之间的关系.“,”Human gene therapy needs to express exogenous DNA at the targeting cells,producing a practical and efficient therapeutic dosage at an approp-riate time(quantitative pharmacology)with a safe man-ner.Recombinant adeno-associated virus(rAAV)Vec-tom possess a number of properties and recent progress in rAAV production made it rapidly become the reagent of choice for therapeutic gene tmasfer.Over 60 clinical trials of gene therapy based on rAAV have been carried out.The dose response reaction between rAAV vectors and gene expression activity or clinical outcome is one of major aspects of these trials.Most studies showed that vector genomes(vg)and gene expression had a concentration-dependent relationship during a certain scope.However,gene expr~sion Can be afffected by viral serotypes,tissue tropisms,cell targeting,drug regulation,injection route,age and sex,etc.Thus,these aspects should be carefully comidered by scienti-sts,pharmacologisis and physicians during animal ex-periments or clinical trails.KEY WORDS gene therapy;viral vector;dose-re-sponse;quantitative pharmacology;clinical thempy