Development of a nude mouse model for the study of antlerogenesis--mechanism of tissue interactions and ossification pathway.

In a previous study (Li et al., 2001. J Exp Zool 290:18-30) a nude mouse model was established to investigate deer antler development.

Cell cycle genes PEDF and CDKN1C in growing deer antlers.

Deer antlers are the only mammalian appendage to display an annual cycle of full regeneration. The growth phase in antler involves the rapid proliferation of several tissues types, including epidermis, dermis, cartilage, bone, blood vessels, and nerves. Antlers thus provide an excellent model to study the developmental regulation of these tissues.

Identification of key tissue type for antler regeneration through pedicle periosteum deletion.

Epimorphic regeneration is the "holy grail" of regenerative medicine. Research aimed at investigating the various models of epimorphic regeneration is essential if a fundamental understanding of the factors underpinning this process are to be established. Deer antlers are the only mammalian appendages that are subject to an annual cycle of epimorphic regeneration.

Vascular localization and proliferation in the growing tip of the deer antler.

The process of angiogenesis is of interest because of the significant clinical benefits associated with controlling vascular growth. Within the antler, chondrogenesis and antler elongation are occurring at the rate of 1-2 cm per day and thus blood vessels are growing at this same rapid pace. We demonstrate that the process of angiogenesis in the antler is controlled at various tissue locations.