HAEM5:Acute myeloid leukaemia with NUP98 rearrangement: Difference between revisions
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==Primary Author(s)*== | ==Primary Author(s)*== | ||
Eric McGinnis, MD | Eric McGinnis, MD, Vancouver General Hospital | ||
Fatma Albulushi, MD | Fatma Albulushi, MD, University Medical City | ||
==WHO Classification of Disease== | ==WHO Classification of Disease== | ||
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==Gene Rearrangements== | ==Gene Rearrangements== | ||
Acute myeloid leukemia (AML) with ''NUP98'' rearrangement is characterized by chromosomal translocations involving ''NUP98'' (nucleoporin 98 and 96 precursor) on chromosome 11p15.4 and various partner genes - more than 40 of such have been reported to date.<ref>Patkar N, Meshinchi S, Westerman D, et al. Acute myeloid leukaemia with NUP98 rearrangement. In: WHO Classification of Tumours Editorial Board. Haematolymphoid tumours. Lyon (France): International Agency for Research on Cancer; 2024. . (WHO classification of tumours series, 5th ed.; vol. 11). <nowiki>https://publications.iarc.who.int/637</nowiki>.</ref> The ''NUP98'' gene encodes protein component of the nuclear pore complex which facilitates nucleocytoplasmic transport of RNA and has roles in transcriptional and cell cycle regulation.<ref name=":2">{{Cite journal|last=Gough|first=Sheryl M.|last2=Slape|first2=Christopher I.|last3=Aplan|first3=Peter D.|date=2011-12-08|title=NUP98 gene fusions and hematopoietic malignancies: common themes and new biologic insights|url=https://pubmed.ncbi.nlm.nih.gov/21948299|journal=Blood|volume=118|issue=24|pages=6247–6257|doi=10.1182/blood-2011-07-328880|issn=1528-0020|pmc=3236115|pmid=21948299}}</ref><ref>{{Cite journal|last=Michmerhuizen|first=Nicole L.|last2=Klco|first2=Jeffery M.|last3=Mullighan|first3=Charles G.|date=2020-11-12|title=Mechanistic insights and potential therapeutic approaches for NUP98-rearranged hematologic malignancies|url=https://pubmed.ncbi.nlm.nih.gov/32766874|journal=Blood|volume=136|issue=20|pages=2275–2289|doi=10.1182/blood.2020007093|issn=1528-0020|pmc=7702474|pmid=32766874}}</ref> NUP98 fusion proteins typically involve the N-terminal portion of NUP98 and the C-terminal portion of the fusion partner.<ref name=": | Acute myeloid leukemia (AML) with ''NUP98'' rearrangement is characterized by chromosomal translocations involving ''NUP98'' (nucleoporin 98 and 96 precursor) on chromosome 11p15.4 and various partner genes - more than 40 of such have been reported to date.<ref name=":5">Patkar N, Meshinchi S, Westerman D, et al. Acute myeloid leukaemia with NUP98 rearrangement. In: WHO Classification of Tumours Editorial Board. Haematolymphoid tumours. Lyon (France): International Agency for Research on Cancer; 2024. . (WHO classification of tumours series, 5th ed.; vol. 11). <nowiki>https://publications.iarc.who.int/637</nowiki>.</ref> The ''NUP98'' gene encodes protein component of the nuclear pore complex which facilitates nucleocytoplasmic transport of RNA and has roles in transcriptional and cell cycle regulation.<ref name=":2">{{Cite journal|last=Gough|first=Sheryl M.|last2=Slape|first2=Christopher I.|last3=Aplan|first3=Peter D.|date=2011-12-08|title=NUP98 gene fusions and hematopoietic malignancies: common themes and new biologic insights|url=https://pubmed.ncbi.nlm.nih.gov/21948299|journal=Blood|volume=118|issue=24|pages=6247–6257|doi=10.1182/blood-2011-07-328880|issn=1528-0020|pmc=3236115|pmid=21948299}}</ref><ref name=":4">{{Cite journal|last=Michmerhuizen|first=Nicole L.|last2=Klco|first2=Jeffery M.|last3=Mullighan|first3=Charles G.|date=2020-11-12|title=Mechanistic insights and potential therapeutic approaches for NUP98-rearranged hematologic malignancies|url=https://pubmed.ncbi.nlm.nih.gov/32766874|journal=Blood|volume=136|issue=20|pages=2275–2289|doi=10.1182/blood.2020007093|issn=1528-0020|pmc=7702474|pmid=32766874}}</ref> NUP98 fusion proteins typically involve the N-terminal portion of NUP98 and the C-terminal portion of the fusion partner.<ref name=":2" /> Fusion partners commonly include transcription factors (such as ''HOX'' elements, most often ''HOXA9'') or epigenetic regulators (most commonly involving ''NSD1'' or ''KDM5A''), however a range of partners belonging to neither of these categories has been identified, many of which contain coiled-coil domains thought to facilitate oligomerization.<ref name=":0">{{Cite journal|last=Mohanty|first=Sagarajit|date=2023-09|title=NUP98 Rearrangements in AML: Molecular Mechanisms and Clinical Implications|url=https://www.mdpi.com/2673-7523/3/3/11|journal=Onco|language=en|volume=3|issue=3|pages=147–164|doi=10.3390/onco3030011|issn=2673-7523}}</ref> | ||
{| class="wikitable" | {| class="wikitable" | ||
|'''Driver Gene''' | |'''Driver Gene''' | ||
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==Characteristic Chromosomal or Other Global Mutational Patterns== | ==Characteristic Chromosomal or Other Global Mutational Patterns== | ||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
|- | |- | ||
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!Clinical Relevance Details/Other Notes | !Clinical Relevance Details/Other Notes | ||
|- | |- | ||
| | |N/A | ||
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|} | |} | ||
==Gene Mutations (SNV/INDEL)== | ==Gene Mutations (SNV/INDEL)== | ||
{| class="wikitable" | {| class="wikitable" | ||
|'''Gene''' | |'''Gene''' | ||
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|Internal tandem duplication | |Internal tandem duplication | ||
|Oncogene | |Oncogene | ||
|Common (frequency varies with fusion partner) | |Recurrent-Common (frequency varies with fusion partner) | ||
|P,T | |P,T | ||
| | |Yes (ELN 2022; independent of fusion) | ||
| | |High frequency in AML with ''NUP98::NSD1''; reported association with adverse prognosis specifically in context of ''NUP98::NSD1''<ref name=":4" /> | ||
|- | |- | ||
|''WT1'' | |''WT1'' | ||
|Gain or loss of function | |Gain or loss of function | ||
|Oncogene/Tumor Suppressor Gene | |Oncogene/Tumor Suppressor Gene | ||
|Recurrent-Common (frequency varies with fusion partner) | |||
| | |||
|No | |||
|High frequency in AML with ''NUP98::NSD1;'' reported association with adverse prognosis specifically in context of ''NUP98::NSD1''<ref name=":4" /> | |||
|- | |||
|''KRAS'' | |||
|Gain of function | |||
|Oncogene | |||
|Recurrent | |||
| | | | ||
|No | |||
| | | | ||
|- | |||
|''NRAS'' | |||
|Gain of function | |||
|Oncogene | |||
|Recurrent | |||
| | |||
|No | |||
| | | | ||
|} | |} | ||
Note: A more extensive list of mutations can be found in [https://www.cbioportal.org/ <u>cBioportal</u>], [https://cancer.sanger.ac.uk/cosmic <u>COSMIC</u>], and/or other databases. When applicable, gene-specific pages within the CCGA site directly link to pertinent external content. | Note: A more extensive list of mutations can be found in [https://www.cbioportal.org/ <u>cBioportal</u>], [https://cancer.sanger.ac.uk/cosmic <u>COSMIC</u>], and/or other databases. When applicable, gene-specific pages within the CCGA site directly link to pertinent external content. | ||
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==Epigenomic Alterations== | ==Epigenomic Alterations== | ||
NUP98 fusion proteins are understood to generally mediate leukemogenesis through the functions of protein domains present in wild-type ''NUP98'' and the relevant fusion partner (often harbouring transcriptional or chromatin-modifying properties); ''in vitro'' experiments have demonstrated chromatin remodeling related to fusion oncoprotein expression (and associated with coordination of numerous interacting proteins, including transcriptional cofactors (e.g. EP300, CREBBP, MEIS1) and histone-modifying complexes) resulting in dysregulation of expression of members of the ''HOXA'' and ''HOXB'' gene families, among other loci (e.g. ''MEIS1'').<ref name=":4" /><ref name=":5" /> | |||
==Genes and Main Pathways Involved== | ==Genes and Main Pathways Involved== | ||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
|- | |- | ||
!Gene; Genetic Alteration!!Pathway!!Pathophysiologic Outcome | !Gene; Genetic Alteration!!Pathway!!Pathophysiologic Outcome | ||
|- | |- | ||
| | |Various ''NUP98'' fusions | ||
| | |HOX-family pathways | ||
|< | |Disruption of critical hematopoietic regulator; dysregulation of differentiation, proliferation, apoptosis, and cell survival.<ref name=":3">{{Cite journal|last=Rasouli|first=Milad|last2=Troester|first2=Selina|last3=Grebien|first3=Florian|last4=Goemans|first4=Bianca F.|last5=Zwaan|first5=C. Michel|last6=Heidenreich|first6=Olaf|date=2024-09|title=NUP98 oncofusions in myeloid malignancies: An update on molecular mechanisms and therapeutic opportunities|url=https://pubmed.ncbi.nlm.nih.gov/39323480|journal=HemaSphere|volume=8|issue=9|pages=e70013|doi=10.1002/hem3.70013|issn=2572-9241|pmid=39323480}}</ref> | ||
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|} | |} | ||
==Genetic Diagnostic Testing Methods== | ==Genetic Diagnostic Testing Methods== | ||
Several common rearrangements involving ''NUP98'' (with ''NSD1'' and ''KDM5A'') are generally cryptic in conventional karyotyping owing to the terminal locations of loci involved, while other rearrangements involving ''NUP98'' may be visible in banded chromosomes.<ref name=":5" /><ref name=":1" /> The following techniques may be used to facilitate detection of cryptic rearrangements: | |||
*FISH | *FISH (e.g. locus-specific ''NUP98'' break-apart probe) | ||
*RT-PCR for | *RT-PCR assays for detection of specific fusions | ||
*RNA sequencing | *RNA sequencing | ||
*Optical | *Optical genome mapping<br /> | ||
[[File:NUP98 NSD1 OGM panel figure.png|none|thumb|617x617px|Cytogenetically cryptic ''NUP98::NSD1'' rearrangement detected by optical genome mapping. '''Panel A''': Circos plot depicting t(5;11)(q35.3;p15.4) with inset of chromosomes 5 and 11 showing no visible abnormalities in banded chromosomes. '''Panel B''': ''NUP98::NSD1'' fusion variant call. '''Panel C''': Concurrent deletion of ''WT1''; abnormalities of ''WT1'' are highly recurrent in AML with ''NUP98::NSD1''.]] | |||
<br /> | |||
[[File:NUP98 NSD1.png|none|thumb|617x617px| | |||
==Familial Forms== | ==Familial Forms== | ||
Not applicable. | |||
==Additional Information== | ==Additional Information== | ||
< | ''NUP98'' fusions are not specific for ''de novo'' acute myeloid leukemia, also occurring in T-lymphoblastic leukemia and blast phase chronic myeloid leukemia with overlap in the profile of ''NUP98'' fusion partners (though ''HOX'' fusions appear, in reports to date, to be specific to myeloid neoplasms).<ref name=":2" /><ref name=":3" /> | ||
==Links== | ==Links== | ||
Not applicable. | |||
==References== | ==References== | ||
<references /> | |||
==Notes== | ==Notes== | ||
<nowiki>*</nowiki>Primary authors will typically be those that initially create and complete the content of a page. If a subsequent user modifies the content and feels the effort put forth is of high enough significance to warrant listing in the authorship section, please contact the [[Leadership|''<u>Associate Editor</u>'']] or other CCGA representative. When pages have a major update, the new author will be acknowledged at the beginning of the page, and those who contributed previously will be acknowledged below as a prior author. | <nowiki>*</nowiki>Primary authors will typically be those that initially create and complete the content of a page. If a subsequent user modifies the content and feels the effort put forth is of high enough significance to warrant listing in the authorship section, please contact the [[Leadership|''<u>Associate Editor</u>'']] or other CCGA representative. When pages have a major update, the new author will be acknowledged at the beginning of the page, and those who contributed previously will be acknowledged below as a prior author. | ||
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[[Category:DISEASE]] | [[Category:DISEASE]] | ||
[[Category:Diseases A]] | [[Category:Diseases A]] | ||