Biomedical subjects
Publications and source records attributed to C Milanese.
Clinical and laboratory findings of two patients affected by solitary myeloma, IgG3 lambda type, with peripheral neuropathy are reported. In both cases the same IgG isoelectrofocusing pattern was found in cerebrospinal fluid and serum samples. Data are consistent with damage of the blood-brain barrier.
A sample of healthy unrelated individuals (882 from Continental Italy and Sicily, and 139 from Sardinia) were typed for HLA and Bf polymorphisms. Bf gene frequencies in Continental Italy and Sicily show an intermediate position among European populations, with Lapps on one side and Basques on the other side; while a very peculiar pattern is observed among Sardinians, with an impressive similarity with French Basques and with the highest F1 gene frequency so far observed. The HLA:Bf gametic associations in Italy and Sardinia are also reported, which confirm the different ethnic background of these populations.
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The present study was performed on Milan residents, in order to evaluate the risk of acquiring multiple sclerosis between patients born in Milan and patients born in Southern Italy. For this purpose, 216 consecutive subjects with definite or probable multiple sclerosis, inmates of the Neurological Institute C. Besta (Milan) from 1968-1976, were matched with 216 controls, uniform as regards age, sex, profession and residence, who were hospitalized at the same time for other neurological diseases. Comparing the case/control pairs of the migration, we observed that the North-Centre born had a relative risk of acquiring the disease significantly superior to one (RR = 1.9; P = 0.01) as compared to migrants from the Southern regions of Italy.
The present study was designed to evaluate the potential of polyacrylamide disc electrophoresis of CSF proteins as an adjunct to laboratory diagnosis of neurological inflammatory diseases. The results of polyacrylamide and cellulose acetate electrophoresis of 42 CSF samples from control subjects and patients with various inflammatory diseases of CNS are presented. A comparison between results from both techniques is made. The polyacrylamide disc electrophoresis has been found valuable in the study of liquoral proteins with particular attention to gammaglobulins because this resolving power is superior to the other method. However, the Authors emphasize the importance of distinguishing the genetically determined proteins and haptoglobins and of the use of specific criteria in interpretation of a CSF protein pattern.
T3-associated disulphide linked heterodimers (Tin) comprised of clonally unique alpha-chains of molecular weight (MW) 49,000-54,000 and beta chains of MW 43,000 have been identified as the antigen receptors on human cytotoxic effector and inducer T-lymphocytes. Crosslinking of Ti molecules by either the appropriate nominal antigen/MHC specificity or anti-clonotypic monoclonal antibody results in clonal expansion of such cells via induction of IL-2 receptor expression, endogenous IL-2 release and IL-2-IL-2 receptor interaction. To determine whether analogous antigen receptor molecules and autocrine growth mechanisms are utilized by suppressor T-cells, we produced an anti-clonotypic monoclonal antibody against a non-cytotoxic T8+ suppressor T-cell, T8AC6, which defines a T3-associated disulphide-linked heterodimer of similar molecular weight to the above clonotypes. We find that Te-Ti triggering of suppressor clones (T8AC6, T8AC7 or T8RW) does not result in IL-2 production or T-cell proliferation and in contrast to inducer clones, also leads to a transient IL-2 unresponsive state. We suggest that such T3-Ti receptor mediated autoregulation of suppressor T-cell growth is necessary in the facilitation of initial inducer T-cell activation following antigenic perturbation.
Interleukin (IL) 6, an autocrine growth factor for mesangial cells, and chemokines, which are released from activated mesangial cells and induce leukocyte infiltration, play a critical role in the progression of immune system mediated renal diseases. Since the reciprocal relationship between IL-6 and chemokines in renal inflammation has been barely investigated, we have analyzed whether IL-6 (500 ng/ml), alone or in combination with the soluble form of its receptor (sIL-6R, 200 ng/ml), can induce normal human mesangial cells (NHMC) to release alpha and/or beta chemokines: MCP-1 (monocyte chemoattractant protein 1), IL-8, Rantes (regulated on activation, normal T cell expressed and secreted), and MIP-1alpha (macrophage inflammatory protein 1alpha). Whereas IL-6 or sIL-6R alone were ineffective in inducing significant chemokine release from NHMC, the simultaneous treatment with IL-6 and sIL-6R showed a significant interaction, leading to a strong synergic effect on MCP-1 synthesis and release without exerting any relevant activity on IL-8, Rantes, or MIP-1alpha. Consistently with the unresponsiveness to IL-6, mRNA and protein expression analysis of the two subunits which form the functional IL-6 receptor showed that NHMC express only the gp130 signal-transducing chain and not the subunit-specific IL-6R (gp80). These findings support an unexpected role of the IL-6 system in kidney inflammatory reactions through the selective regulation of monocyte recruitment.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
OBJECTIVE: The present study was designed to investigate the effects of bindarit on animal survival and renal damage in murine lupus autoimmune disease. METHODS: Female NZB/W mice were used. Bindarit was administered, as a 0.5% medicated diet, starting either before the onset of the pathology or early in the course of the disease, in order to assess the effects of age upon the response. Furthermore, the effects of combined administration of bindarit with low dose i.p. cyclophosphamide bolus were also studied. Proteinuria and anti-dsDNA antibody levels were determined during the course of the study. Renal damage was evaluated by light microscopy. RESULTS: Bindarit markedly prolonged the NZB/W mouse life span (p < 0.001 vs. controls), showing a significant difference even against high dose cyclophosphamide (90 mg/kg ip bolus) chosen as the reference (p < 0.01). Bindarit significantly reduced the degree of renal damage, delayed proteinuria and did not prevent autoantibody development, thus confirming the lack of immunosuppressive activity. CONCLUSION: The present results and other experimental data demonstrating the capacity of the drug to interfere with the inflammatory and immune response cross-talking, indicate that bindarit exerts its action in murine lupus through a novel and original mechanism. These findings, coupled with the evidence that the drug possesses a very safe toxicological profile, suggest that further investigations to assess the potential value of bindarit in the treatment of SLE are warranted.