After the adoption of the decree, Istpart operated under the People's Commissariat of Education, on 1 December 1921, it was transferred to the Central Committee of the RCP (b) as a department.
Daily management of its work was carried out by the Presidium: the chairman Olminsky, his deputy M. N. Pokrovsky and the secretary V. V. Adoratsky.
[2] By resolutions of the Central Committee of the All-Union Communist Party (Bolsheviks) dated 10 May and 20 August 1928, Istpart was merged with the Lenin Institute.
The journal Proletarian Revolution was published until 1941 as an organ of the MELI under the Central Committee of the All-Union Communist Party (Bolsheviks).
Thus, its leader Mikhakl Olminsky, published a letter from Leon Trotsky, written during the First World War, which was used to discredit the Left Opposition.