31. Dendritic filopodia can be readily observed transforming into dendritic spines.32. Dendritic filopodia can be readily observed transforming into dendritic spines. 33. Dendritic cells collect data and eventually pass it to the neuron body.34. Antigens are also presented on the surface of dendritic cells. 35. Its expression is upregulated during the maturation of dendritic cells. 36. One theory on the mechanism of dendritic arbor development is the Synaptotropic Hypothesis. 37. Dendritic cells can be stimulated to activate a cytotoxic response towards an antigen.38. These immature dendritic cells are ineffective at presenting antigen to T helper cells. 39. Such a diversion could functionally impair the dendritic cell. 40. Interestingly, the loss of FMRP results in an abnormal dendritic spine phenotype.