Scanning electron microscopy and a surface-replica technique for transmission electron microscopy have been used to study the ultrastructural features of cultured-cell surfaces The presence of microvilh measuring 0-1-0-2 fim in diameter by up to 5 ftm in length has been noted as a regular feature of Landschutz ascites, ' fibroblastic' HeLa, and canine kidney, cells. The surfaces of chick mesenc...

Certain mutant strains of herpes simplex virus type 1 (HSV-1) are unable to infect cells in which entry is dependent on HVEM, the previously described herpesvirus entry mediator designated here as herpesvirus entry protein A (HveA). These mutant viruses can infect other cells where entry is apparently dependent on other co-receptors. The mutant virus HSV-1(KOS)Rid1 was used to screen a human cD...

Myxoinflammatory fibroblastic sarcoma (MIFS) is a rare, painless, and intermediate (rarely metastasizing) fibroblastic tumor, which commonly occurs in the extremities, with an equal sex predilection. This sarcoma is composed of a mixed inflammatory infiltrate along with spindled, epithelioid, and bizarre tumor cells in a background of hyaline and myxoid areas. In spite of such a distinctive mor...

As noted, the unrestrained accumulation of myofibroblasts is a key feature that differentiates fibrotic from physiologic repair. The accrual of these cells represents the combined effects of cell trafficking, proliferation and death. Of these, proliferation has received considerable attention; indeed, fibroblastic foci were initially defined as “small aggregates of actively proliferating fibrob...

Myxoinflammatory fibroblastic sarcoma is a rare sarcoma that develops in patients of all ages, which usually presents as a slow-growing painless mass in the distal extremities. To date, myxoinflammatory fibroblastic sarcoma with invasion of the brachial plexus has rarely been reported in the literature. In this study, a case of large cervicothoracic sarcoma, which invaded the brachial plexus, i...