D 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
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

NC6763, projekt VaV
Název: Využití monoklonálního imunoglobulinu k přípravě protinádorové vakcíny u nemocných s mnohočetným myelomem
Investor: Ministerstvo zdravotnictví ČR, Využití mononukleárního imunoglobulinu k přípravě protinádorové vakcíny u nemocných s mnohočetným myelomem