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2017 ; 14
(3
): 3051-3056
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Expression and clinical relevance of SPOPL in medulloblastoma
#MMPMID28928843
Hu Y
; Yang L
; Zhang M
; Huang Z
; Lin J
; Zhang N
Oncol Lett
2017[Sep]; 14
(3
): 3051-3056
PMID28928843
show ga
Medulloblastoma (MB) is a type of malignant brain tumor in children. Although
knowledge of MB is increasing and the survival rate of patients with MB has
improved in previous years, the long-term treatment-associated complications
remain unfavorable. Early diagnosis and treatment is critical for patients with
MB, but effective molecular markers for MB remain elusive. The Speckle-type POZ
protein (SPOP) is a member of the MATH-BTB protein family and is a type of joint
molecule for Cullin-3. SPOP inhibits tumor growth. However, the SPOP-like (SPOPL)
gene, which is a SPOP paralog gene and shares an overall 85% sequence identity
with SPOP, has not been explored in cancer studies at present. The results of the
present study demonstrate that the SPOPL expression is decreased in MB cells and
tissues compared with normal cells and tissues at the protein and mRNA levels.
Immunohistochemical analysis revealed decreased expression of SPOPL in 42/56
(75%) paraffin-embedded archival MB biopsies, and SPOPL expression may be
associated with the MB differentiation level (P=0.011). Patients with increased
SPOPL expression exhibit improved survival rates compared with those with
decreased SPOPL expression, and the SPOPL gene may be a potentially valuable
molecular marker of MB.