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2017 ; 8
(6
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
New Insights in the Cytogenetic Practice: Karyotypic Chaos, Non-Clonal
Chromosomal Alterations and Chromosomal Instability in Human Cancer and Therapy
Response
#MMPMID28587191
Rangel N
; Forero-Castro M
; Rondón-Lagos M
Genes (Basel)
2017[Jun]; 8
(6
): ä PMID28587191
show ga
Recently, non-clonal chromosomal alterations previously unappreciated are being
proposed to be included in cytogenetic practice. The aim of this inclusion is to
obtain a greater understanding of chromosomal instability (CIN) and tumor
heterogeneity and their role in cancer evolution and therapy response. Although
several genetic assays have allowed the evaluation of the variation in a
population of cancer cells, these assays do not provide information at the level
of individual cells, therefore limiting the information of the genomic diversity
within tumors (heterogeneity). The karyotype is one of the few available
cytogenetic techniques that allow us not only to identify the chromosomal
alterations present within a single cell, but also allows us to profile both
clonal (CCA) and non-clonal chromosomal alterations (NCCAs). A greater
understanding of CIN and tumor heterogeneity in cancer could not only improve
existing therapeutic regimens but could also be used as targets for the design of
new therapeutic approaches. In this review we indicate the importance and
significance of karyotypic chaos, NCCAs and CIN in the prognosis of human
cancers.