Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Tumour morphology--interplay between chromosome aberrations and founder cell differentiation.

D Gisselsson1

  • 1Department of Clinical Genetics, University Hospital, SE-221 85 Lund, Sweden. david.gisselsson@klingen.lu.se

Histology and Histopathology
|October 10, 2002
PubMed
Summary

Cancer development differs between blood cancers and solid tumors. Blood cancers arise from immature cells with genetic mutations causing differentiation block, while solid tumors develop from more mature cells needing multiple genetic hits and exhibit chromosomal instability.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Oncogenic activation of FOXR1 by 11q23 intrachromosomal deletion-fusions in neuroblastoma.

Oncogene·2011
Same author

Mechanisms of whole chromosome gains in tumors--many answers to a simple question.

Cytogenetic and genome research·2010
Same author

Telomeric associations correlate with telomere length reduction and clonal chromosome aberrations in giant cell tumor of bone.

Cytogenetic and genome research·2009
Same author

High levels of HIF-2alpha highlight an immature neural crest-like neuroblastoma cell cohort located in a perivascular niche.

The Journal of pathology·2008
Same author

Array-based genotype-phenotype correlation in a case of supernumerary ring chromosome 12.

Clinical genetics·2007
Same author

Telomere dysfunction and telomerase activation in cancer--a pathological paradox?

Cytogenetic and genome research·2007

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Hematological neoplasms originate from stem or progenitor cells with altered transcription factor genes, leading to blocked differentiation.
  • Solid tumors typically arise from more differentiated cells, requiring multiple oncogene and tumor suppressor gene mutations.

Purpose of the Study:

  • To compare the distinct molecular mechanisms driving the transformation of stem/progenitor cells in hematological neoplasms versus differentiated cells in solid tumors.
  • To elucidate the role of genetic alterations, cellular differentiation, telomerase activity, and chromosomal instability in tumor formation.

Main Methods:

  • Comparative analysis of genetic alterations (translocations, mutations) in hematological neoplasms and solid tumors.
  • Examination of cellular differentiation pathways and the role of transcription factors.

Related Experiment Videos

  • Investigation of telomerase expression and telomere length dynamics.
  • Assessment of chromosomal aberrations and instability in tumor cell populations.

    • Main Results:

    • Hematological neoplasms result from specific translocations in immature cells, blocking differentiation and conferring high self-replication via telomerase.
    • Solid tumors arise from multiple genetic hits in differentiated cells, often lacking telomerase, leading to telomere shortening and chromosomal instability.
    • Chromosomal instability drives genome reorganization, heterogeneity, and morphological changes (pleomorphism, atypia) in solid tumors.

    Conclusions:

    • Tumorigenesis pathways diverge significantly based on the cell of origin's differentiation state and genetic landscape.
    • Specific translocations characterize hematological neoplasms, while chromosomal instability is a hallmark of solid tumor progression.
    • Tumor morphology is influenced by both cell lineage and the degree of chromosomal instability inherent to the tumor type.