IN VIVO IMAGING AND THERAPY WITH MAGNETIC NANOPARTICLE CONJUGATES
    45.
    发明公开
    IN VIVO IMAGING AND THERAPY WITH MAGNETIC NANOPARTICLE CONJUGATES 审中-公开
    体内图像和治疗磁性纳米粒子的结合物

    公开(公告)号:EP1912564A2

    公开(公告)日:2008-04-23

    申请号:EP06800839.0

    申请日:2006-08-04

    IPC分类号: A61B5/055

    摘要: A non-invasive in vivo technique is disclosed, useful for example in detecting cancers and micrometastases. The technique may be used to selectively deliver drugs to target cells such as tumors, metastases, micrometastases, and individual malignant cells. Ligands with specificity for a target cell receptor, and optionally drug molecules as well, are covalently bound to magnetic nanoparticles, either directly or through a spacer molecule. The ligand precludes the need for a separate coating layer. For example, human breast cancer cells express receptors both for luteinizing hormone/chorionic gonadotropin (LH/CG), and for luteinizing hormone releasing hormone (LHRH). These cells can be specifically targeted by iron oxide nanoparticles covalently linked to LH/CG or LHRH. The nanoparticles are incorporated into the cancer cells through receptor-mediated endocytosis. The specific accumulation in targeted cancer cells enhances resolution for imaging, therapy, or both. The ligand may, for example, be a hormone, receptor, or antibody, or a fragment thereof.

    TARGET GENES FOR INFLAMMATORY BOWEL DISEASE
    49.
    发明公开
    TARGET GENES FOR INFLAMMATORY BOWEL DISEASE 审中-公开
    靶基因的炎性肠道疾病

    公开(公告)号:EP1721006A1

    公开(公告)日:2006-11-15

    申请号:EP05713322.5

    申请日:2005-02-11

    IPC分类号: C12Q1/68

    CPC分类号: C12Q1/6883 C12Q2600/156

    摘要: Two genes have been discovered that show single nucleotide polymorphisms that are differentially expressed in patients with inflammatory bowel disease (IBD) as compared to unaffected controls. These two genes, FLJ21425 and CSF1R (colony stimulating factor 1 receptor), are located close together on chromosome 5q33 which was known to have other IBD susceptibility genes. Moreover, expression of the CSF1R gene was shown in the intestinal epithelium. These two genes can be used to test for the presence of the allele associated with IBD for an early diagnosis of susceptibility to IBD. Early identification of subjects with susceptibility to IBD will enable early treatment with known methods. Additionally, the two genes can be used to target treatment, e.g., drugs known to affect CSF1R expression. Based on gene expression data, chromosomal location and biological function, the colony stimulating factor 1 receptor gene was shown to contribute to Crohn's disease susceptibility.