نتایج جستجو برای: mycobacterium leprae
تعداد نتایج: 46445 فیلتر نتایج به سال:
Leprosy, caused by infection with Mycobacterium leprae or the recently discovered Mycobacterium lepromatosis, was once endemic in humans in the British Isles. Red squirrels in Great Britain (Sciurus vulgaris) have increasingly been observed with leprosy-like lesions on the head and limbs. Using genomics, histopathology, and serology, we found M. lepromatosis in squirrels from England, Ireland, ...
Organized nerve cultures of dorsal root ganglia from neonatal mice were infected with Mycobacterium leprae, the causative agent of leprosy. A significant multiplication of the acid-fast bacilli was observed within the Schwann cell component of the culture. The growth of these bacilli was sensitive to antileprosy drugs and was not observed directly in bacteriological media. These organisms were ...
Leprosy is a chronic but treatable infectious disease caused by the intracellular pathogen Mycobacterium leprae. Host immunity to M. leprae determines the diversity of clinical manifestations seen in patients, from tuberculoid leprosy with robust production of Th1-type cytokines to lepromatous disease, characterized by elevated levels of Th2-type cytokines and a suboptimal proinflammatory respo...
Mycobacterium tuberculosis genes encoding immunologically relevant proteins were isolated by systematically screening a lambda gt11 recombinant DNA expression library with a collection of murine monoclonal antibodies directed against protein antigens of this pathogen. These antibodies, previously characterized by a World Health Organization workshop on monoclonal antibodies against mycobacteria...
We report that the molecular basis of the neural tropism of Mycobacterium leprae is attributable to the specific binding of M. leprae to the laminin-alpha2 (LN-alpha2) chain on Schwann cell-axon units. Using recombinant fragments of LN-alpha2 (rLN-alpha2), the M. leprae-binding site was localized to the G domain. rLN-alpha2G mediated M. leprae binding to cell lines and to sciatic nerves of dyst...
Millions of patients with leprosy suffer from nerve damage resulting in disabilities as a consequence of Mycobacterium leprae infection. However, mechanisms of nerve damage have not been elucidated because of the lack of a model that maintains M. leprae viability and mimics disease conditions. A model was developed using viable M. leprae, rat Schwann cells, and Schwann cell-neuron cocultures in...
To better understand the biology and the virulence determinants of the two major mycobacterial human pathogens Mycobacterium tuberculosis and Mycobacterium leprae, their genome sequences have been determined recently. In silico comparisons revealed that among the 1439 genes common to both M. tuberculosis and M. leprae, 219 genes code for proteins that show no similarity with proteins from other...
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