An activated murine B cell lymphoma line (A‐20) produces a factor‐like activity which is functionally related to human natural killer cell stimulatory factor
An activated murine B cell lymphoma line (A‐20) produces a factor‐like activity which is functionally related to human natural killer cell stimulatory factor
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活化的鼠 B 细胞淋巴瘤系 (A-20) 产生与人类自然杀伤细胞刺激因子功能相关的因子样活性
DOI:
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发表时间:
1992
影响因子:
5.4
通讯作者:
A. Campos
中科院分区:
文献类型:
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作者:
J. Mengel;Leopoldo Daré;G. M. Dare;Maristela Delgado;A. Nomizo;J. Silva;A. Campos
In the present article we show that supernatants derived from lipopolysaccharide (LPS) or phorbol 12‐myristate 13‐acetate (PMA)‐stimulated A‐20 B cell lymphoma are able to induce polyclonal immunoglobulin (Ig) secretion by normal B cells in a T cell‐dependent manner. This activity could be blocked by neutralizing monoclonal antibodies against interferon‐γ, but not by monoclonal antibodies against interleukin (IL)‐2, IL‐4, IL‐5, IL‐6, IL‐10 and granulocyte macrophage colony‐stimulating factor (GM‐CSF) or even a polyclonal antibody against tumor necrosis factor (TNF)‐α. Furthermore, A‐20 supernatants induced the production of measurable amounts of interferon‐γ by normal murine spleen cells and activates natural killer (NK) cells. Fractionation of factor‐rich supernatants on a Sephacryl S‐200 column revealed that the factor activity is located in the fractions corresponding to a molecular mass of 160–150 kDa and 80–70 kDa. The biological activities found in the A‐20 supernatant are very similar to the ones described for the recently cloned human IL‐12/NK cell stimulatory factor. These results suggest the existence of a murine analogous factor for the human IL‐12 produced by A‐20 B cell lymphoma.
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DOI:
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发表时间:
1988
期刊:
The American journal of pathology
影响因子:
--
作者:
Willoughby,PB;Jennette,JC;Haughton,G
通讯作者:
Haughton,G
影响因子:
--
作者:
E. Vitetta;R. Fernandez-Botran;C. Myers;V. Sanders
通讯作者:
E. Vitetta;R. Fernandez-Botran;C. Myers;V. Sanders
影响因子:
--
作者:
Chesnut,RW;Grey,HM
通讯作者:
Grey,HM
影响因子:
4.4
作者:
S. Wolf;P. Temple;Michiko Kobayashi;D. Young;M. Dicig;L. Lowe;R. Dzialo;L. Fitz;C. Ferenz;R. Hewick
通讯作者:
S. Wolf;P. Temple;Michiko Kobayashi;D. Young;M. Dicig;L. Lowe;R. Dzialo;L. Fitz;C. Ferenz;R. Hewick
影响因子:
4.4
作者:
OGARRA, A;STAPLETON, G;HOWARD, M
通讯作者:
HOWARD, M