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Two members of the CCC family , KCC2 ( the major neuron - specific K - Cl cotransporter ; KCC isoform 2 ) and NKCC1 ( the Na - K - 2Cl cotransporter isoform 1 which is expressed in both neurons and glial cells ) have attracted much interest in studies on GABAergic signaling under both normal and pathophysiological conditions , such as epilepsy .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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