scholarly journals JC Polyomavirus (JCV) and Monoclonal Antibodies: Friends or Potential Foes?

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Roberta Antonia Diotti ◽  
Akira Nakanishi ◽  
Nicola Clementi ◽  
Nicasio Mancini ◽  
Elena Criscuolo ◽  
...  

Progressive multifocal leukoencephalopathy (PML) is a demyelinating disease of the central nervous system (CNS), observed in immunodeficient patients and caused by JC virus ((JCV), also called JC polyomavirus (JCPyV)). After the HIV pandemic and the introduction of immunomodulatory therapy, the PML incidence significantly increased. The correlation between the use of natalizumab, a drug used in multiple sclerosis (MS), and the PML development of particular relevance. The high incidence of PML in natalizumab-treated patients has highlighted the importance of two factors: the need of PML risk stratification among natalizumab-treated patients and the need of effective therapeutic options. In this review, we discuss these two needs under the light of the major viral models of PML etiopathogenesis.

Author(s):  
Laura Piccio ◽  
Anne H. Cross

Multiple sclerosis (MS) is considered to be an autoimmune disease of the central nervous system that targets myelin but affects both white matter and gray matter. Multiple sclerosis is thought to be mediated by cells of the adaptive and innate immune systems. CD4+ T lymphocytes of the Th1 and Th17 subtypes are believed to be critical for the initiation of multiple sclerosis. Treatment with monoclonal antibodies that deplete B lymphocytes has proven that B cells are critical to relapse development in multiple sclerosis. While immunopathophysiology is clearly important in MS, whether multiple sclerosis is truly an autoimmune disorder and the target or targets of the autoimmunity remain unknown.


2015 ◽  
Vol 26 (1) ◽  
pp. 50-53

Multiple sclerosis is the most common demyelinating disease of the central nervous system, affecting mostly young people. There were many risk factors for MS identified, however a direct cause of the disease is still unknown. Pathological changes in the SM lead to the myelin sheath damage around axons, what prevents proper transmission of nerve impulses in the central nervous system. The aim of this study was analyzing and comparing the amino acids profile in the blood serum of MS patients to control group of healthy individuals and evaluating the relationship between them. Significant (p<0.05) differences in the level of glutamate, aspartate and taurine in the blood serum of MS patients were revealed. A positive glutamate and aspartate level correlation in the serum has been demonstrated. Gender is significant only in the case of glutamate level in blood serum. The studies highlight the important role of neurotransmitters in MS and are the initial step in proteomic research.


Author(s):  
Anhar Hassan ◽  
Eduardo E. Benarroch

The most common inflammatory demyelinating disease of the central nervous system is multiple sclerosis, a disabling disorder that affects predominantly young adults between 20 and 50 years old. It affects women twice as often as men. Multiple sclerosis has a complex immunopathogenesis, variable prognosis, and an unpredictable course. Polygenic and environmental (possibly viral) factors probably have a substantial effect on susceptibility to multiple sclerosis.


2016 ◽  
Vol 7 (10) ◽  
pp. 4332-4342 ◽  
Author(s):  
Qianying Zhang ◽  
Zhike Li ◽  
Shuangchan Wu ◽  
Xiaofei Li ◽  
Ying Sang ◽  
...  

Multiple sclerosis (MS) is a demyelinating disease occurring in the central nervous system.


2015 ◽  
Vol 14 (4) ◽  
pp. 205-213
Author(s):  
Ana-Maria Vladila ◽  
◽  
Dan-Andrei Mitrea ◽  
Sanda Maria Nica ◽  
Ioan Buraga ◽  
...  

Progressive multifocal leukoencephalopathy (PML) is an opportunistic infection associated with the reactivation of the JC virus, causing a severe demyelination within the central nervous system in patients with immunosuppression caused by disease or secondary to use of drugs. Several therapies used in the treatment of MS have reported cases of associated PML, most cases being related to Natalizumab treatment. In this article we review specific MS medication with a reported risk for PML, and also revise PML epidemiology, pathogenesis, treatment and available approaches on therapy in patients at high risk for developing this infection.


2021 ◽  
Vol 30 (4) ◽  
pp. 50-54
Author(s):  
Azalia Aisarovna Sokolova ◽  
◽  
Leonid Sergeevich Zemlyanushin ◽  
Elvira Aysarovna Vashkulatova ◽  
Sofia Mikhailovna Zemlyanushina

The article discusses a clinical case of demyelinating disease of the central nervous system, multiple sclerosis in combination with Leber’s hereditary optic atrophy of the optic nerve (Harding syndrome). The debut of the disease at the age of 24 in the form of a simultaneous bilateral decrease in vision, with subsequent atrophy of the optic nerves in both eyes. The diagnosis of multiple sclerosis was confi rmed according to the 2017 McDonald criteria, the diagnosis of Leber’s disease was confi rmed by genetic testing. An important point in the diff erential diagnosis was the identifi cation of the G3460A mutation in the ND1 gene and intrathecal synthesis of oligoclonal immunoglobulin G.


2011 ◽  
Vol 139 (9-10) ◽  
pp. 657-660 ◽  
Author(s):  
Dejan Savic ◽  
Slobodan Vojinovic ◽  
Mirjana Spasic ◽  
Zoran Peric ◽  
Stevo Lukic

Introduction. Syringomyelia is a cavitary extension inside the spinal cord which can be either symptomatic or congenitally-idiopathic. Syringomyelia during the course of the disease in patients presenting with clinically definite multiple sclerosis was described earlier. Syringomyelia in patients presenting with a clinically isolated syndrome suggestive of multiple sclerosis is unusual. Case Outline. We present two patients presenting with demy-elinating disease of the central nervous system with syringomyelia in the cervical and thoracic spinal cord. We did not find classical clinical signs of syringomyelia in our patients, but we disclosed syringomyelia incidentally during magnetic resonance exploration. Magnetic resonance exploration using the gadolinium contrast revealed the signs of active demyelinating lesions in the spinal cord in one patient but not in the other. Conclusion. Syringomyelia in demyelinating disease of the central nervous system opens the question whether it is a coincidental finding or a part of clinical features of the disease. Differentiation of the significance of syringomyelia finding in these patients plays a role in the choice of treatment concept in such patients.


2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Lynn K. Gordon ◽  
Debra A. Goldstein

Multiple sclerosis (MS), a demyelinating disease of the central nervous system, is more commonly seen in women. It has been associated with both anterior and intermediate uveitis as well as retinal vasculitis. Ocular inflammation may develop concurrent with, prior to, or after the development of neurologic signs and symptoms. Patients with MS have an approximately 1% chance of developing intraocular inflammation. Patients with intermediate uveitis have an 8–12% risk of being diagnosed with MS. This risk is higher in females and in those with bilateral disease. This should be kept in mind when evaluating patients with uveitis, particularly in those patients for whom TNF inhibitor therapy is being considered, as these agents may worsen demyelinating disease.


2012 ◽  
Vol 199 (3) ◽  
pp. 413-416 ◽  
Author(s):  
Lawrence Steinman

Multiple sclerosis (MS) is the major inflammatory demyelinating disease of the central nervous system. There is strong evidence that an immune response in the brain is a critical component of the disease. In 1992, in a collaboration between academia and biotechnology, my colleagues and I showed that α4 integrin was the critical molecule involved in the homing of immune cells into the inflamed brain. Was it sheer luck that these results led to the development of a drug for MS?


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