B cell activation
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establishment of lymphocyte polarity
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immunological synapse formation
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lymphocyte activation involved in immune response
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lymphocyte differentiation
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lymphocyte proliferation
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natural killer cell activation
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negative regulation of lymphocyte activation
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positive regulation of lymphocyte activation
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regulation of lymphocyte activation
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T cell activation
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The change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.