Factor XIIIa

08/01/2005 - "In this study, we examined the fine structures and potential heterogeneity among the subgroup of factor XIIIa (FXIIIa) positive dendritic cells consisted of eleven cases of dermatofibroma (DF). "
07/01/2005 - "The digital AFs, fibrokeratomas, and dermatofibromas stained predominately for Factor XIIIa, with no or minimal staining for CD34. "
11/01/2002 - "Aneurysmal fibrous histiocytoma showing transition from factor XIIIa-positive to -negative."
04/01/2002 - "Benign fibrous histiocytoma: an additional case richly endowed with factor XIIIa(+) cells."
09/01/1997 - "In contrast to classic Schwannian/neurogenic granular cell tumours, granular cell dermatofibromas were S100 protein negative, but showed variable reactivity for factor XIIIa (10-50%) in 4/5, for smooth muscle specific actin (10-50%) in 2/5 and with E9 (10-30%) in 3/5 lesions. "

01/01/1993 - "Factor XIIIa-positive dermal dendrocytes (FXIIIa+ dd) may have an important role in the pathogenesis of psoriasis, in that their numbers are increased in lesional skin compared with non-lesional skin. "
06/01/1995 - "Distinctive dendritic cell subsets expressing factor XIIIa, CD1a, CD1b and CD1c in mycosis fungoides and psoriasis."
01/01/1999 - "Investigation of serial biopsies from psoriasis lesions revealed a significant reduction in the number of somatostatin- and factor XIIIa-positive dendritic cells during the treatments. "
09/01/1997 - "On the basis of these findings, the somatostatin-positive cells seem to represent a specific population of dermal dendritic cells, distinct from Langerhans' cells and factor XIIIa-positive cells, which are found in elevated amounts in chronic plaque psoriasis."
07/01/1991 - "Although previous attempts to demonstrate viral sequences in psoriasis and KS lesions have been unsuccessful, in situ hybridization with confocal microscopy has shown the presence of HIV RNA transcripts predominantly within CD4+, Factor XIIIa positive dermal dendrocytes. "

01/01/1996 - "Recent studies have shown that Factor XIIIa is also expressed by HPC, (as well as tumors of fibrohistiocytic differentiation) and hence may be yet another helpful positive marker in establishing an immunohistochemical profile. "
08/15/2012 - "Diffuse CD34 immunoreactivity and focal positivity for Factor XIIIa were seen in the tumor, which was negative for EMA and S100. "
08/01/2011 - "The neoplasm cells were positive for CD68 and Factor XIIIA and negative for CD34. "
09/01/2008 - "In addition, the tumor was strongly immunoreactive for factor XIIIa. "
04/01/2006 - "The diffuse factor XIIIa expression in CFT might be useful to differentiate this entity from other intra-abdominal soft-tissue tumors in problematic cases. "

07/01/1988 - "Factor XIIIa and the classic histiocytic markers in malignant fibrous histiocytoma: a comparative immunohistochemical study."
01/01/2005 - "Histiocyte-like cells expressing factor XIIIa do not belong to the neoplastic cell population in malignant fibrous histiocytoma."
01/01/1991 - "All cases of malignant fibrous histiocytoma showed positive staining for factor XIIIa, alpha-1-antitrypsin and alpha-1-antichymotrypsin. "
08/01/2004 - "Differentiation from atypical dermatofibroma and dermatomyofibroma, as well as from malignant fibrous histiocytoma, whose prognosis is usually much less favorable, can be improved by immunostaining for CD 34 and Factor XIIIa. "
01/01/1997 - "An unusual soft tissue tumor with features of angiomatoid malignant fibrous histiocytoma composed of bimodal CD34 and factor XIIIa positive dendritic cell subsets. "

08/01/1998 - "We conclude that the majority of atypical dermal cells in radiation dermatitis are derived from dermal dendritic cells which express factor XIIIa."
08/01/1998 - "We sought to determine whether the atypical dermal cells in chronic radiation dermatitis express factor XIIIa. "
08/01/1998 - "Atypical cells in radiation dermatitis express factor XIIIa."
08/01/1998 - "We employed standard immunohistochemical techniques with antibodies to factor XIIIa and CD34 to study 16 biopsy samples showing changes of radiation dermatitis. "
10/01/2002 - "In spongiotic dermatitis and lichen planus, the numbers of epidermal and dermal CD1a(+) cells and factor XIIIa(+) cells were significantly greater than in normal control skin, while in psoriasis only factor XIIIa(+) cells were significantly increased in number. "