Rola VEGF, czynnika neurotroficznego i proangiogennego w patogenezie choroby Alzheimera

• Authors: Marta Nowacka , Ewa Obuchowicz

Title variants

EN

Role of VEGF, neurotrophic and proangiogenic factor in pathogenesis of Alzheimer’s disease

• Languages of publication: PL

Abstracts

EN

Currently, neurodegenerative disorders represent one of the most serious diseases the mankind is struggling with. An increased morbidity rate of Alzheimer’s disease seems to be associated with general population aging. Despite the fact that the intensive studies have been conducted in many research centres for several years, etiopathogenesis of Alzheimer’s disease is still not fully understood. Furthermore, there is no drug which could, at least, inhibit progress of this disease effectively. Vascular endothelial growth factor (VEGF) is well-characterized proangiogenic substance, essential for the formation of new blood vessels during embryogenesis as well as others pathological condition. Recently, a new role for VEGF as a neurotrophic factor has been emerged. In the developing nervous system, VEGF plays a pivotal role in neuronal proliferation and guidance of neuronal development process. As proangiogenic and neurotrophic factor, VEGF has been suggested to be involved in the pathogenesis of Alzheimer’s disease. In patients suffering fromthis disease patients abnormal regulation of VEGF expression have been reported. Moreover, an interaction between VEGF and b-amyloid has been evidenced in in vitro studies on cell cultures and in vivo studies conducted on transgenic lab animals. In consequence, these data have stimulated an increasing interest in assessing the therapeutic potential of VEGF pharmacological modulation in treatment of Alzheimer’s disease.

PL

Choroby neurodegeneracyjne należą do najpoważniejszych schorzeń, z jakimi zmaga się obecnie medycyna. Wydaje się, iż obserwowany wzrost częstości występowania choroby Alzheimera w dużej mierze wiąże się z ogólnym starzeniem się ludzkiej populacji. Mimo intensywnych badań prowadzonych od kilkudziesięciu lat etiopatogeneza tej choroby nie jest poznana, nie znamy również leku, który przynajmniej hamowałby skutecznie postęp tej choroby. Naczyniowo-śródbłonkowy czynnik wzrostu (vascular endothelial growth factor, VEGF) jest dobrze scharakteryzowanym czynnikiem proangiogennym, niezbędnym do powstawania nowych naczyń krwionośnych zarówno podczas rozwoju zarodkowego, jak i w warunkach patologicznych. Badania przeprowadzone w ostatnich latach wskazały na nową rolę VEGF jako czynnika neurotroficznego. Podczas rozwoju układu nerwowego VEGF odgrywa kluczową rolę nie tylko w różnicowaniu i tworzeniu sieci naczyń w rozwijającym się mózgu, lecz także w proliferacji neuronów oraz w kierowaniu procesem rozwoju neuronalnego. Obecnie uważa się, że VEGF jako czynnik proangiogenny i neurotroficzny prawdopodobnie bierze udział w patogenezie choroby Alzheimera. U osób cierpiących na tę chorobę stwierdzono nieprawidłową regulację ekspresji VEGF. Zarówno w badaniach in vitro przeprowadzonych na hodowlach komórkowych, jak i w badaniach in vivo na zwierzęcych modelach transgenicznych stwierdzono występowanie interakcji między VEGF a b-amyloidem. Te przesłanki zainspirowały badaczy do podjęcia badań nad ewentualnym wykorzystaniem farmakologicznej modulacji VEGF w terapii choroby Alzheimera.

Keywords

EN

Alzheimer’s disease   b-amyloid   choroba Alzheimera   leczenie   modele transgeniczne choroby Alzheimera   naczyniowo-
-śródbłonkowy czynnik wzrostu (VEGF)   transgenic models   treatment of AD   vascular endothelial growth factor (VEGF)  

Discipline

• MEDICINE: MEDICINE

• Publisher: Medical Communications
• Journal: Aktualności Neurologiczne
• Year: 2011
• Volume: 11
• Issue: 2
• Pages: 123-130

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• Document Type: article