Can the regeneration mechanism of lizards be used in humans?
Actually there are some studies to find out your answer. Some of the studies claim that they have found a special enzyme and some say micro RNAs give salamanders the capacity of regeneration. But until now, humans couldn't use salamander's regenerative ability. Maybe you would like to know there is a mammal (african spiny mouse) with special regenerative capacities which include regeneration of its skin and cartilage without scarring. 

References: 


'Skin shedding and tissue regeneration in African spiny mice (Acomys)' Ashley W. Seifert,   Stephen G. Kiama,   Megan G. Seifert, Jacob R. Goheen, Todd M. Palmer &amp; Malcolm Maden
Microarray analysis of microRNA expression during axolotl limb regeneration.
For further studies I recommend searching "salamander and regeneration", "african spiny mouse and regeneration" in pubmed ;)