title: Oligodendroglioma: CD44 as a possible prognostic opportunity.
abstract: CD44, in its standard form as well in its isoforms, is a cell surface adhesion glycoprotein which occurs in a wide variety of non-neoplastic and neoplastic cells. CD44 has been considered to be implicated in tumoral growth and in metastatic potential. We studied the immunohistochemical expression of CD44 standard in 30 oligodendrogliomas (19 primary lesions and 11 recurrences) in order to verify its possible prognostic role. Twelve primary oligodendrogliomas (63%) and 8 recurrences (73%) were CD44-positive. Three of 9 (33%) primary oligodendrogliomas with a Smith grade A-B and 9 of 10 (90%) primary oligodendrogliomas with a Smith grade C-D were found to be in CD44H-positive (p = 0.020). Three of 9 (33%) primary oligodendrogliomas that had not relapsed and 9 of 10 (90%) successively relapsed primary lesions were found to be CD44H-positive (p = 0.020). Median survival of the patients with a CD44H-positive lesion was 84 months; median survival of the patients with a CD44H-negative lesion was 91 months. We conclude that CD44H could have prognostic value regarding the occurrence of relapses.
authors.affiliation: Dipartimento di Patologia Umana e Oncologia, Università degli Studi di Firenze, Italy.
authors.forename: A M
authors.initials: AM
authors.lastname: Buccoliero
authors.forename: A
authors.initials: A
authors.lastname: Caldarella
authors.forename: L
authors.initials: L
authors.lastname: Arganini
authors.forename: P
authors.initials: P
authors.lastname: Mennonna
authors.forename: F
authors.initials: F
authors.lastname: Ammanati
authors.forename: A
authors.initials: A
authors.lastname: Taddei
authors.forename: G L
authors.initials: GL
authors.lastname: Taddei
mesh_terms: D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D018960:Hyaluronan Receptors / Q000096:biosynthesis*; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000378:metabolism / Q000401:mortality / Q000473:pathology; D009837:Oligodendroglioma / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D011379:Prognosis; D020033:Protein Isoforms / Q000096:biosynthesis; D012189:Retrospective Studies; D015996:Survival Rate
chemical_list: D018960:Hyaluronan Receptors; D020033:Protein Isoforms