Faculty Opinions recommendation of C1q deficiency leads to the defective suppression of IFN-alpha in response to nucleoprotein containing immune complexes.

2011 ◽  
Author(s):  
Berhane Ghebrehiwet ◽  
Kinga Hosszu
Keyword(s):  
Immune Complexes ◽  
Ifn Alpha ◽  
C1q Deficiency

C1q inhibits immune complex induced IFN-alpha production in plasmacytoid dendritic cells—A novel link between C1q deficiency and SLE pathogenesis

2009 ◽  
Vol 46 (14) ◽  
pp. 2857
Author(s):  
Christian Lood ◽  
Birgitta Gullstrand ◽  
Lennart Truedsson ◽  
Anders I. Olin ◽  
Gunnar V. Alm ◽  
...  
Keyword(s):  
Dendritic Cells ◽  
Immune Complex ◽  
Plasmacytoid Dendritic Cells ◽  
Ifn Alpha ◽  
Alpha Production ◽  
C1q Deficiency

scholarly journals C1q Deficiency Leads to the Defective Suppression of IFN-α in Response to Nucleoprotein Containing Immune Complexes

2010 ◽  
Vol 185 (8) ◽  
pp. 4738-4749 ◽  
Author(s):  
Deanna M. Santer ◽  
Brian E. Hall ◽  
Thaddeus C. George ◽  
Stephanie Tangsombatvisit ◽  
Chih Long Liu ◽  
...  
Keyword(s):  
Immune Complexes ◽  
C1q Deficiency

A Sensitive On-Grid Immunoelectron Microscopic Procedure for Diagnosis of Rotavirus Infection

1980 ◽  
Vol 38 ◽  
pp. 506-507
Author(s):  
M. F. Miller ◽  
A. R. Rubenstein
Keyword(s):  
Electron Microscopy ◽  
Specific Antibody ◽  
Immune Complexes ◽  
Acute Gastroenteritis ◽  
Plant Viruses ◽  
Aggregation Process ◽  
Microscopic Technique ◽  
Fecal Material ◽  
Present Communication ◽  
Number Of Particles

Studies of rotavirus particles in humans, monkeys and various non-primates with acute gastroenteritis have involved detection of virus in fecal material by electron microscopy. The EM techniques most commonly employed have been the conventional negative staining (Fig. 1) and immune aggregation (Fig. 2) procedures. Both methods are somewhat insensitive and can most reliably be applied to samples containing large quantities of virus either naturaLly or as a result of concentration by ultracentrifugation. The formation of immune complexes by specific antibody in the immune aggregation procedures confirms the rotavirus diagnosis, but the number of particles per given microscope field is effectively reduced by the aggregation process. In the present communication, we describe use of an on-grid immunoelectron microscopic technique in which rotavirus particles are mounted onto microscope grids that were pre-coated with specific antibody. The technique is a modification of a method originalLy introduced by Derrick (1) for studies of plant viruses.

Localization of Immune Complexes in the Basement Membrane of the Ductuli Efferentes of the Rhesus Monkey

1980 ◽  
Vol 38 ◽  
pp. 456-457
Author(s):  
D. Marsh
Keyword(s):  
Basement Membrane ◽  
Fluorescence Microscopy ◽  
Rhesus Monkey ◽  
Immune Complex ◽  
Immune Complexes ◽  
Vas Deferens ◽  
Frozen Sections ◽  
Efferent Ducts ◽  
Complex Deposition ◽  
Sperm Antibodies

As a result of vasectomy, spermatozoa are confined to the epididymis and vas deferens, where they degenerate, releasing antigens that enter the circulation or are engulfed by macrophages. Multiple antigens of the sperm can elicit production of autoantibodies; circulating anti-sperm antibodies are found in a large percentage of vasectomized men, indicating the immunogenicity of the sperm. The increased prevalence of macrophages in the liomen of the rhesus monkey testicular efferent ducts after vasectomy led to further study of this region. Frozen sections were used for evaluation of immunopathological status by fluorescence microscopy with fluorescein-conjugated antibody. Subsequent granular deposits of immune complexes were revealed by positive immunofluorescence staining for complement. The immune complex deposition in the basement membrane surrounding the efferent ducts implies that this region is involved in antigen leakage (Fig. 1).

Antiproliferative and antiviral effects of mutated IFN-alpha with increased IFN receptor binding affinity

2011 ◽  
Vol 49 (01) ◽  
Author(s):  
MF Sprinzl ◽  
L Bührer ◽  
D Strand ◽  
G Schreiber ◽  
PR Galle ◽  
...  
Keyword(s):  
Binding Affinity ◽  
Receptor Binding ◽  
Receptor Binding Affinity ◽  
Ifn Alpha ◽  
Antiviral Effects

Coagulation and Fibrinolysis Study in Systemic Lupus erythematosus: Haematological, Urinary and Tissue Parameters

1981 ◽  
Vol 46 (03) ◽  
pp. 575-580 ◽  
Author(s):  
P Stratta ◽  
C Canavese ◽  
P Valmaggia ◽  
M Rotunno ◽  
E Levi ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Immune Complexes ◽  
Acute Stage ◽  
Systemic Lupus ◽  
Immunological Activity ◽  
Coagulation Abnormalities ◽  
Coagulation And Fibrinolysis

SummaryHaematochemical, urinary and tissue parameters were examined in the elaboration of the coagulation and fibrinolysis profile in 33 cases of systemic lupus erythematosus in different stages of the disease. Coagulation abnormalities varied from hypo- to hyper-coagulabitity, these being often associated in the same patient, either simultaneously or at different stages of the disease. Activation of coagulation, closely related to the immunological activity of the disease, was present in 80% cases in the acute stage, and 36% of those in the remission stage. The lupus-like anticoagulant was not much involved, and platelets were the prime figures in the haemostatic abnormalities of lupus, those being the preferred target of direct antibody activities, or possibly of immune complexes as well. Activation of the coagulatory cascade is not uncommonly accompanied by a thrombophilic tendency coupled with signs of consumption, this being the expression of a continuously stimulated haemostatic balance.

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