Immunotherapeutic and antitumour potential of thalidomide analogues
2001
The immunomodulatory drug thalidomide has been shown to be clinically useful in a number of conditions including various immunological disorders and cancers. Clinical activity in vivo is attributed to the wide ranging immunological and non-immunological properties possessed by this drug; these include anti-TNF-α, T-cell co-stimulatory, anti-angiogenic activities and also direct antitumour activity. Recently, the design of compounds based on the thalidomide structure has led to the synthesis of analogues with greatly enhanced immunological activity and with similarly decreased toxicity. These derivatives fall into at least two categories; selective cytokine inhibitory drugs (SelCID), which are phosphodiesterase Type 4 (PDE4) inhibitors and immunomodulatory drugs (IMiD), similar to thalidomide which act via unknown mechanism(s). These compounds are in the process of being characterised in laboratory studies and are also now being assessed in Phase I and Phase I/II clinical studies. In this review we will hi...
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