Human lung tumor cell lines established from the major histological types of lung cancer were examined by immunofluorescent staining techniques for their patterns of intermediate filament (keratin, vimentin, and neurofilament triplet protein) expression. All cell lines examined, both small cell lung carcinoma (SCLC) and non-SCLC (squamous cell carcinoma, adenocarcinoma, large cell carcinoma, an...

PURPOSE The management of peripheral nerve injuries with segmental defects is a challenge to both patient and surgeon. Repairs under tension have a poor prognosis; sensory nerve allografts have donor site morbidity and suboptimal motor recovery, but remain the gold standard. The development of conduit-based repair strategies has evolved and these are promising for sensory nerves and short defec...

Circulating tumor cells (CTCs) are important targets for treatment and critical surrogate markers when evaluating cancer prognosis and therapeutic response. A sensitive methodology for detecting CTCs in gastric cancer (GC) patients is needed. In this study we demonstrate a device for enrichment and cultivation of CTCs. In total, 22 patients with GC, all candidates for surgery, were enrolled in ...

We previously demonstrated that truncated desmoplakin I (DP I) molecules containing the carboxyl terminus specifically coalign with and disrupt both keratin and vimentin intermediate filament (IF) networks when overexpressed in tissue culture cells (Stappenbeck, T. S., and K. J. Green. J. Cell Biol. 116:1197-1209). These experiments suggested that the DP carboxyl-terminal domain is involved eit...

Six Candida spp. that were previously characterized for cutaneous pathogenicity were assessed for Candida acid proteinase (CAP) production in albumin-supplemented, nitrogen-restricted media. C. albicans CAP production was compared in media supplemented with albumin, casein, collagen, hemoglobin, or keratin and in TC medium 199. C. albicans, C. stellatoidea, and C. tropicalis, which are cutaneou...

The structure of cornified tissues, such as hair, wool, nail, and cornified epithelium of the skin, has been investigated largely by polarization optical, x-ray diffraction, or electron microscope methods. Under the polarization microscope all these tissues show a positive double refraction which is considered due to regular arrays of asymmetric keratin particles (12). X-ray diffraction studies...

Peritoneal keratin granuloma is a rare lesion included under granulomatous lesions of the peritoneum. It can be of infectious and non-infectious etiology. The lesion presents as a large intra-abdominal necrotic mass often misinterpreted clinically as a disseminated carcinoma. We report a case of peritoneal keratin granuloma in a 50-year-old male following peritonitis. Histomorphology revealed l...

The three-dimensional findings of the surface and from a cross section from a case of disseminated superficial porokeratois using scanning electron microscopy are reported. On the surface of the skin, irregular keratin with a serpiginous distribution was seen. A gross aspect of keratin in the hyperkeratotic wall was also observed and compared to the normal area, in which the release of corneocy...

The tongue of the adult mouse is covered by a multilayered squamous epithelium which is continuous on the ventral surface, however interrupted on the dorsal surface by many filiform and few fungiform papillae. The filiform papillae themselves are subdivided into an anterior and posterior unit exhibiting different forms of keratinization. Thus, the entire epithelium shows a pronounced morphologi...