Cleaved caspase-3, caspase-7 and poly (ADP-ribose) polymerase are complementarily but differentially expressed in human medulloblastomas
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Cleaved caspase-3, caspase-7 and poly (ADP-ribose) polymerase are complementarily but differentially expressed in human medulloblastomas. / Puig, B; Tortosa, A; Ferrer, I; Puig Martorell, Berta.
In: NEUROSCI LETT, Vol. 306, No. 1-2, 22.06.2001, p. 85-8.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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T1 - Cleaved caspase-3, caspase-7 and poly (ADP-ribose) polymerase are complementarily but differentially expressed in human medulloblastomas
AU - Puig, B
AU - Tortosa, A
AU - Ferrer, I
AU - Puig Martorell, Berta
PY - 2001/6/22
Y1 - 2001/6/22
N2 - Expression of cleaved caspase-3, cleaved caspase-7 and specific product of caspase-dependent Poly (ADP-Ribose) Polymerase (PARP) cleavage have been examined by immunohistochemistry in seven human medulloblastomas. Cleaved caspase-3 and cleaved PARP expression parallels apoptosis as revealed with classical morphological criteria and with the method of in situ end-labelling of nuclear DNA fragmentation. Cleaved PARP co-localizes cleaved caspase-3 in the majority of tumors and areas thus indicating that caspase-3 is a major effector caspase leading to apoptosis in these tumors. Yet cleaved caspase-7 was also expressed in a small number of cells in four of seven tumors, but was the predominant caspase associated with cleaved PARP in one medulloblastoma. These findings indicate that effector caspase-3 and -7 may act in association, although caspase-7 may be exceptionally dominant in selected tumors.
AB - Expression of cleaved caspase-3, cleaved caspase-7 and specific product of caspase-dependent Poly (ADP-Ribose) Polymerase (PARP) cleavage have been examined by immunohistochemistry in seven human medulloblastomas. Cleaved caspase-3 and cleaved PARP expression parallels apoptosis as revealed with classical morphological criteria and with the method of in situ end-labelling of nuclear DNA fragmentation. Cleaved PARP co-localizes cleaved caspase-3 in the majority of tumors and areas thus indicating that caspase-3 is a major effector caspase leading to apoptosis in these tumors. Yet cleaved caspase-7 was also expressed in a small number of cells in four of seven tumors, but was the predominant caspase associated with cleaved PARP in one medulloblastoma. These findings indicate that effector caspase-3 and -7 may act in association, although caspase-7 may be exceptionally dominant in selected tumors.
KW - Apoptosis
KW - Caspase 3
KW - Caspase 7
KW - Caspases
KW - Cerebellar Neoplasms
KW - DNA Fragmentation
KW - Gene Expression Regulation, Enzymologic
KW - Gene Expression Regulation, Neoplastic
KW - Humans
KW - Immunohistochemistry
KW - In Situ Nick-End Labeling
KW - Medulloblastoma
KW - Poly(ADP-ribose) Polymerases
M3 - SCORING: Journal article
C2 - 11403964
VL - 306
SP - 85
EP - 88
JO - NEUROSCI LETT
JF - NEUROSCI LETT
SN - 0304-3940
IS - 1-2
ER -