View clinical trials related to Ataxia Telangiectasia.
Filter by:Polypoidal choriodal vasculopathy (PCV) is an ophthalmologic disease, characterized by vascular abnormalities of the walls of small choroidal vessels, reproducing the specific aspect of polyps (cluster aspect). PCV is one of the "boundary-forms" of age related macular degeneration. These vasculopathies can be idiopathic. Following the radiotherapy treatments of active and occult-typed neovessels in Age-Related Macular Degeneration (ARMD), 10% of the patients would present typical polypoidal vasculopathic lesions. These polypoidal secondary lesions have been induced by radiotherapy treatment and may show an increased sensibility to radiation in these patients. Such an increase of radiosensibility is noticed in ataxia telangiectasia syndrome, in relation to the ATM gene mutations. The secondary or idiopathic polypoidal vasculopathic lesions are to be brought closer to telangiectasias in Ataxia Telangiectasia. Considering the iatrogenic component of radiotherapy in the secondary forms of ataxia telangiectasia, it seems legitimate to search for predisposing variants to polypoidal vasculopathies in the ATM gene. Considering the frequency of PCV worldwide, it seems important to identify the predisposing genetic factors of the ATM gene. These biomarkers to the pathology might enable us to offer prevention (reinforced protection against radiations, including light) and to develop therapeutics (recruitment of other kinases, ATM's partners, in the stability and cellular control of DNA).
This research is being done to better understand the causes of the disease Ataxia-Telangiectasia and, in the longer-term, develop new therapies for the disease using stem cells. Induced pluripotent stem cells (iPSC) are a type of cells that can be made in the laboratory from cells in your body, such as blood cells or skin cells (fibroblasts). These stem cells can then be used for research purposes. For example, stem cells can be used to investigate how the mutation in ATM causes the actual symptoms of Ataxia-Telangiectasia. In addition, the stem cells can be used to screen for drugs that could be helpful to treat the disease or to develop new laboratory techniques to correct the mutation that causes Ataxia-Telangiectasia. where the mutation that causes the disease is corrected by the investigators. The stem cells generated in this study will not be used directly for patient therapy and therefore this research does not have a direct benefit to you. However, it will help advance our understanding of the disease and develop future therapies. Patients who enroll in this study will get all of the standard therapy they would get for their tumor whether or not they participate in this study. There is no extra or different therapy given. The study involves a one-time procedure (either blood collection or skin biopsy).