2002
Isolation of monoclonal immunoglobulin from plasma of patients with multople myeloma using affinity chromatography
MUSILOVÁ, Romana; Eva TÁBORSKÁ; H. NOVOTNÁ; Ludmila BOURKOVÁ; L. KOVÁŘOVÁ et al.Základní údaje
Originální název
Isolation of monoclonal immunoglobulin from plasma of patients with multople myeloma using affinity chromatography
Autoři
MUSILOVÁ, Romana; Eva TÁBORSKÁ; H. NOVOTNÁ; Ludmila BOURKOVÁ; L. KOVÁŘOVÁ; Tomáš BÜCHLER; Miroslav PENKA a Roman HÁJEK
Vydání
Bratislava, SR, Zborník XVII.Biochemický zjazd, s. 223-223, 2002
Nakladatel
VEDA, vydavatelstvo SAV, Bratislava
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
30200 3.2 Clinical medicine
Stát vydavatele
Slovensko
Utajení
není předmětem státního či obchodního tajemství
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/02:00006850
Organizační jednotka
Lékařská fakulta
ISBN
nepřiděleno
Klíčová slova anglicky
multiple myeloma; IgG; affinity chromatography; G-protein
Štítky
Změněno: 9. 12. 2002 10:30, prof. RNDr. Eva Táborská, CSc.
Anotace
V originále
Multiple myeloma is characterized by the proliferation of a malignant plasma cell clone and accounts for approximately 10% of hematological malignancies. High-dose chemotherapy with autologous transplantation has improved the survival of patients with myeloma, hovewer, relapse is inevitable (1,2). Recent research has targeted the minimal residual disease. One of the therapeutical options is this setting is immunotherapy using specific tumor antigen as a vaccine. The idiotype of myeloma immunoglobulin (Id protein) is specifically expressed by malignant cells and can be used as a tumor antigen with the aim to induce cytotoxic T-lymphocyte response against myeloma cells (3,4,5,6). For purification of Id protein from plasma of relapsed IgG myeloma patients who were before reinduction treatment, plasma was precipitated with a saturated solution of ammonium sulfate. After precipitation and dialysis in saline at pH 7.3 to remove ammonium sulfate, the Id protein was separated on protein G immobilized on agarose. To breach the bound between the Id-protein and the protein G, 0.2M glycine (pH 2.7) was used and resulting fractions were immediately neutralized in 1M Tris-base. SDS-polyacrylamide gel electrophoresis was used to determine the purity of Id protein. The isolation was carried out in 10 patients. Using columns with a capacity of 30 mg/ml protein G and the flow rate of 1-2 drops per 10 seconds, 47% of the plasma content of Id protein was extracted (range: 22 to 89%). The initial concentration of monoclonal immunoglobulin in plasma did not influence the yield of the separation. The amount of Id protein extracted in each isolation was sufficient to a prepare Id-KLH conjugate that was used as the specific antigen in preclinical experiments.
Návaznosti
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