| 1. |
- Lanemo Myhrinder, Anna, 1975-, et al.
(författare)
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A new perspective : molecular motifs on oxidized LDL, apoptotic cells, and bacteria are targets for chronic lymphocytic leukemia antibodies
- 2008
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Ingår i: Blood. - : American Society of Hematology. - 0006-4971 .- 1528-0020. ; 111:7, s. 3838-3848
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Tidskriftsartikel (refereegranskat)abstract
- The restricted immunoglobulin (Ig) repertoire found in B-cell chronic lymphocytic leukemia (CLL) implies a role for antigen(s) in the leukemogenesis. The nature of the antigens has, however, not been characterized, although examples of autoantigens have been demonstrated. We have analyzed a panel of 28 CLL cell lines and primary cultures, producing monoclonal Ig with different Ig heavy-chain variable region gene usage and mutational status, including several complementarity determining region 3 homology subset members. Using mass-spectrometry, immunoassays, or protein macroarrays, we have discovered novel antigens binding to CLL Igs. These antigens included cytoskeletal proteins vimentin, filamin B, and cofilin-1, but also phosphorylcholine-containing antigens (eg, Streptococcus pneumoniae polysaccharides and oxidized low-density lipoprotein [oxLDL]). Additional new antigens identified were cardiolipin and proline-rich acidic protein-1. Remarkably, these antigens represent molecular motifs exposed on apoptotic cells/blebs and bacteria, and several CLL Igs bound to apoptotic Jurkat cells. In conclusion, these intriguing data, showing a limited target structure recognition, indicate that CD5(+) CLL B cells are derived from a cell compartment that produces "natural antibodies," which may be instrumental in elimination and scavenging of apoptotic cells and pathogenic bacteria.
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| 2. |
- Malmgren, Kristina, 1952, et al.
(författare)
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Long-term outcomes of epilepsy surgery in adults and children
- 2015
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- This book provides a comprehensive, rigorous review of the long-term outcome literature in epilepsy surgery in both adults and children. Each chapter examines the long-term outcome literature in a separate domain; covering seizure control, social, vocational/educational and psychiatric outcomes. Behavior and cognition are also discussed. The clinical predictors of good and bad outcomes in each domain are described and the gaps in current knowledge are highlighted. Separate chapters examine the methodological challenges associated with long-term outcome studies and the special considerations associated with informed consent in this population. Long-Term Outcomes of Epilepsy Surgery in Adults and Children is essential reading for all members of multidisciplinary epilepsy surgery teams, including neurosurgeons, neurologists and neuropsychologists; it will enable these teams to counsel patients and parents who are considering epilepsy surgery as a therapeutic option.
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| 3. |
- Yuste, Jose, et al.
(författare)
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Impaired opsonization with C3b and phagocytosis of Streptococcus pneumoniae in sera from subjects with defects in the classical complement pathway
- 2008
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Ingår i: Infection and Immunity. - 1098-5522. ; 76:8, s. 3761-3770
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Tidskriftsartikel (refereegranskat)abstract
- Results from studies using mice deficient in specific complement factors and clinical data on patients with an inherited deficiency of the classical complement pathway component C2 suggest that the classical pathway is vital for immunity to Streptococcus pneumoniae. However, the consequences of defects in classical pathway activity for opsonization with C3b and the phagocytosis of different S. pneumoniae serotypes in human serum are not known, and there has not been a systematic analysis of the abilities of sera from subjects with a C2 deficiency to opsonize S. pneumoniae. Hence, to investigate the role of the classical pathway in immunity to S. pneumoniae in more detail, How cytometry assays of opsonization with C3b and the phagocytosis of three capsular serotypes of S. pneumoniae were performed using human sera depleted of the complement factor C1q or B or sera obtained from C2-deficient subjects. The results demonstrate that, in human serum, the classical pathway is vital for C3b-iC3b deposition onto cells of all three serotypes of S. pneumoniae and seems to be more important than the alternative pathway for phagocytosis. Compared to the results for sera from normal subjects, C3b-iC3b deposition and total anti-S. pneumoniae antibody activity levels in sera obtained from C2(-/-) subjects were reduced and the efficiency of phagocytosis of all three S. pneumoniae strains was impaired. Anticapsular antibody levels did not correlate with phagocytosis or C3b-iC3b deposition. These data confirm that the classical pathway is vital for complement-mediated phagocytosis of S. pneumoniae and demonstrate why subjects with a C2 deficiency have a marked increase in susceptibility to S. pneumoniae infections.
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