Ectopic expression of c-myc fails to overcome downregulation of telomerase activity induced by herbimycin A, but ectopic hTERT expression overcomes it

Ectopic expression of tenascin-C.

We read, with much interest, the recent Research Article by Järvinen et al. (Järvinen et al., 2003), in which the authors show that, after removing the cast from an immobilized rat hind leg, within 8 weeks tenascin-C (TN-C) expression is increased in tendon and the myotendinous junction, but there is no de novo appearance of TN-C in skeletal muscle connective tissue. The authors extensively cri...

Cord blood-derived neuronal cells by ectopic expression of Sox2 and c-Myc.

The finding that certain somatic cells can be directly converted into cells of other lineages by the delivery of specific sets of transcription factors paves the way to novel therapeutic applications. Here we show that human cord blood (CB) CD133(+) cells lose their hematopoietic signature and are converted into CB-induced neuronal-like cells (CB-iNCs) by the ectopic expression of the transcrip...

Ectopic Telomerase Expression Fails to Maintain Chondrogenic Capacity in Three-Dimensional Cultures of Clinically Relevant Cell Types

The poor healing capacity of cartilage and lack of effective treatment for associated disease and trauma makes it a strong candidate for a regenerative medicine approach. Potential therapies tested to date, although effective, have met with a number of intrinsic difficulties possibly related to limited autologous chondrocyte cell yield and quality of cartilage produced. A potential mechanism to...

Ectopic expression in Drosophila.

Ectopic eye development in Drosophila induced by directed dachshund expression.

The dachshund gene encodes a nuclear protein that is required for normal eye development in Drosophila. In the absence of dachshund function, flies develop with severely reduced or no eyes. We show that targeted expression of dachshund is sufficient to direct ectopic retinal development in a variety of tissues, including the adult head, thorax and legs. This result is similar to that observed w...