Therapeutic method for treating patients with acute intermittent porphyria (AIP) and other porphyric diseases
申请人:——
公开号:US20030223979A1
公开(公告)日:2003-12-04
A method for treatment or prophylaxis of disease caused by deficiency, in a subject, of an enzyme belonging to the heme biosynthetic pathway, the method comprising administering, to the subject, an effective amount of a catalyst which is said enzyme or an enzymatically equivalent part or analogue thereof. The disease is selected from the group consisting of acute intermittent
porphyria
(AIP), ALA deficiency
porphyria
(ADP),
Porphyria cutanea
tarda (PCT), Hereditary coproporphyria (HCP), Harderoporphyria (HDP),
Variegata porphyria
(VP), Congenital erythropoetic
porphyria
(CEP),
Erythropoietic protoporphyria
(EPP), and
Hepatoerythropoietic porphyria
(HEP).
The catalyst is one or more enzymes selected from the group consisting of delta-aminolevulininic acid synthetase, delta-aminolevulinic acid dehydratase (ALAD), porphobilinogen deaminase (PBGD), uroporphyrinogen III cosythetase, uroporphyrinogen decarboxylase, coproporphyrinogen oxidase, protoporphyrinogen oxidase, and ferrochelatase, or an enzymatically equivalent part or analogue thereof. In addition the invention relates to the use of PBGD, to human recombinant PBGD and to a method of gene therapy. The invention also relates to an expression plasmid pExp1-M2-BB (Seq. ID No. 1) and to use of a DNA fragment, the EcoR I-Hind III linear fragment (seq. ID No. 2), used for transformation in the hemC disruption strategy for production of rhPBGD expressed in
E. coli.
一种治疗或预防受试者因缺乏属于血红素生物合成途径的酶而引起的疾病的方法,该方法包括向受试者施用有效量的催化剂,该催化剂为所述酶或其酶等效部分或类似物。所述疾病选自急性间歇性
卟啉症
(AIP)、ALA 缺乏症
卟啉症
(ADP)、
卟啉症
卟啉症(PCT)、遗传性共卟啉症(HCP)、硬卟啉症(HDP)、
变性卟啉症
(VP)、先天性红细胞生成性
卟啉症
(CEP)、
红细胞生成性原卟啉症(EPP
(EPP) 和
肝红细胞生成性卟啉症(HEP
(HEP)。
催化剂是选自δ-氨基乙酰丙酸合成酶、δ-氨基乙酰丙酸脱水酶(ALAD)、卟啉原脱氨酶(PBGD)、尿卟啉原 III 合成酶、尿卟啉原脱羧酶、共卟啉原氧化酶、原卟啉原氧化酶和铁螯合酶或其酶等效部分或类似物组成的组中的一种或多种酶。此外,本发明还涉及 PBGD 的使用、人重组 PBGD 以及基因治疗方法。本发明还涉及一种表达质粒 pExp1-M2-BB(Seq.ID No.1)和 DNA 片段的使用,即 EcoR I-Hind III 线性片段(seq.ID No.2),用于在 hemC 干扰策略中进行转化,以生产在大肠杆菌中表达的 rhPBGD。
大肠杆菌。