21. IL-4 is the positive feedback cytokine for Th2 cells differentiation . 22. Subsequent work addressed several technical problems in assessing cell differentiation . 23. JDP2 plays a role in cell differentiation in several systems. 24. It is well known that DNA methylation is associated with cell differentiation and proliferation. 25. Serum response factor is a member of the cell differentiation . 26. Currently, research is being conducted to identify transcription control on hematopoietic stem cell differentiation . 27. ALDHs function in cell differentiation , proliferation, oxidation, and drug resistance. 28. Pathogens can take advantage of cell differentiation pathways in order to invade host cells. 29. Retinal and skin cells are also dependent on gap junctions in cell differentiation and proliferation. 30. Another important target is HNF1? to activate the Pax4 promoter to induce specific cell differentiation .