Schwann cell cultures: recent advances and novel approaches to the reconstruction of peripheral nerve defects

Vol. 53 No. 3 Suppl., 2012
This supplement was not sponsored by Outside Organizations.

ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

O. Stefanescu, D. M. Enescu, I. Lascar

Current techniques in tissue engineering may offer a choice regarding the reconstructive strategies of peripheral nerves. Schwann cell cultures are to be considered an appropriate option in the reconstruction of peripheral nerve and spinal cord large defects. Schwann cells availability from peripheral nerve autografts creates a great benefit concerning their usefulness in the nervous autogenic transplantation. Allogeneic Schwann cells transplantation can be effective in the reconstruction without delay of peripheral nerve defects.

Corresponding author: Ovidiu Stefanescu, MD, PhD; e-mail: dr_stefanescu@yahoo.com

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ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

Anca Oana Docea, P. Mitrut, Diana Grigore, D. Pirici, Daniela Cornelia Calina, Eliza Gofita

Although in the last decades the incidence of gastric cancer declined, at present it is ranked worldwide on the fourth place between all human cancer pathology. Also, it has an aggressive behavior, the majority of patients being diagnosed in advanced stages. One of the key factors to control survival improvement of those patients is to clarify the molecular mechanisms involved in initiation, progression, invasion, and metastasis of gastric cancer. We thus investigated the immunoreactivity for TGF-beta, TGFBR1, and Ki67 of 25 specimens of intestinal gastric adenocarcinomas, and compared this with the correspondent reactivity for three specimens of diffuse gastric carcinomas; in the end, we tried to establish a statistical correlation with major clinicomorphological parameters. As a result, we noticed that the highest reactivity was present in the diffuse type compared with the intestinal variant, in which the TGF-beta reactivity progressively increased along the normal epithelium-intestinal metaplasia-dysplasia-carcinoma sequence. Also, we found for intestinal variant that TGF-beta immunoreactivity correlated significantly with tumor degree of differentiation and proliferative activity measured based on Ki67 immunoreactivity. In conclusion, TGF-beta is implicated in the progression of intestinal type of gastric adenocarcinomas and its immunoreactivity assessment for these targets has a prognostic value.

Corresponding author: Daniel Pirici, University Assistant, MD, PhD; e-mail: daniel.pirici@ua.ac.be

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