Sensitive detection of GATA1 mutations using complementary DNA‐based analysis for transient abnormal myelopoiesis associated with the Down syndrome

Introduction GATA1 mutation plays an important role in initiating transient abnormal myelopoiesis (TAM) and in the clonal evolution towards acute megakaryoblastic leukaemia (AMKL) associated with Down syndrome (DS). This study aimed to develop and validate the clinical utility of a complementary DNA...

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Veröffentlicht in:International journal of laboratory hematology 2022-04, Vol.44 (2), p.349-355
Hauptverfasser: Mizuta, Shumpei, Yamane, Noriko, Mononobe, Saya, Watanabe, Asami, Kitamura, Ritsuko, Takahara, Tadamori, Matsushima, Chieko, Yoshida, Atushi, Okamoto, Seiji, Tanaka, Kuniaki, Iwai, Atsushi, Ikegawa, Atsuko, Wada, Takahito, Usami, Ikuya, Maihara, Toshiro, Komai, Takao, Heike, Toshio, Nishida, Yoshinobu, Kobayashi, Kenichiro
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container_issue 2
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container_title International journal of laboratory hematology
container_volume 44
creator Mizuta, Shumpei
Yamane, Noriko
Mononobe, Saya
Watanabe, Asami
Kitamura, Ritsuko
Takahara, Tadamori
Matsushima, Chieko
Yoshida, Atushi
Okamoto, Seiji
Tanaka, Kuniaki
Iwai, Atsushi
Ikegawa, Atsuko
Wada, Takahito
Usami, Ikuya
Maihara, Toshiro
Komai, Takao
Heike, Toshio
Nishida, Yoshinobu
Kobayashi, Kenichiro
description Introduction GATA1 mutation plays an important role in initiating transient abnormal myelopoiesis (TAM) and in the clonal evolution towards acute megakaryoblastic leukaemia (AMKL) associated with Down syndrome (DS). This study aimed to develop and validate the clinical utility of a complementary DNA (cDNA) analysis in parallel with the conventional genomic DNA (gDNA) Sanger sequencing (Ss), as an initial screening test for GATA1 mutations. Methods GATA1 mutations were evaluated using both gDNA and cDNA in 14 DS patients using Ss and fragment analysis (FA), respectively. Results The detection sensitivity of conventional gDNA sequencing was limited in low blast percentage TAM (LBP‐TAM); however, cDNA‐based Ss readily detected all the pathognomonic GATA1 mutations. The cDNA‐based FA readily detected GATA1 frameshift mutation with a reliable sensitivity ranging from 0.005% to 0.01% of clonal cells. Conclusions GATA1 mutations are heterogeneous; therefore, we would like to propose a dual cDNA and gDNA analysis as a standard diagnostic approach, especially for LBP‐TAM. cDNA‐based FA promises an excellent sensitivity for detecting frameshift GATA1 mutations in the longitudinal clonal evolution towards AMKL without using a patient specific primer.
doi_str_mv 10.1111/ijlh.13756
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This study aimed to develop and validate the clinical utility of a complementary DNA (cDNA) analysis in parallel with the conventional genomic DNA (gDNA) Sanger sequencing (Ss), as an initial screening test for GATA1 mutations. Methods GATA1 mutations were evaluated using both gDNA and cDNA in 14 DS patients using Ss and fragment analysis (FA), respectively. Results The detection sensitivity of conventional gDNA sequencing was limited in low blast percentage TAM (LBP‐TAM); however, cDNA‐based Ss readily detected all the pathognomonic GATA1 mutations. The cDNA‐based FA readily detected GATA1 frameshift mutation with a reliable sensitivity ranging from 0.005% to 0.01% of clonal cells. Conclusions GATA1 mutations are heterogeneous; therefore, we would like to propose a dual cDNA and gDNA analysis as a standard diagnostic approach, especially for LBP‐TAM. cDNA‐based FA promises an excellent sensitivity for detecting frameshift GATA1 mutations in the longitudinal clonal evolution towards AMKL without using a patient specific primer.</description><identifier>ISSN: 1751-5521</identifier><identifier>EISSN: 1751-553X</identifier><identifier>DOI: 10.1111/ijlh.13756</identifier><identifier>PMID: 34761527</identifier><language>eng</language><publisher>England: Wiley Subscription Services, Inc</publisher><subject>Complementary DNA ; DNA sequencing ; DNA, Complementary ; Down syndrome ; Down Syndrome - complications ; Down Syndrome - diagnosis ; Down Syndrome - genetics ; Down's syndrome ; fragment analysis ; Frameshift mutation ; GATA-1 protein ; GATA1 mutation ; GATA1 Transcription Factor - genetics ; Humans ; Leukemia ; Leukemia, Megakaryoblastic, Acute - complications ; Leukemia, Megakaryoblastic, Acute - diagnosis ; Leukemia, Megakaryoblastic, Acute - genetics ; Leukemoid Reaction - diagnosis ; Leukemoid Reaction - genetics ; Mutation ; Myelopoiesis ; Patients ; Prenatal diagnosis ; transient abnormal myelopoiesis</subject><ispartof>International journal of laboratory hematology, 2022-04, Vol.44 (2), p.349-355</ispartof><rights>2021 John Wiley &amp; Sons Ltd</rights><rights>2021 John Wiley &amp; Sons Ltd.</rights><rights>Copyright © 2022 John Wiley &amp; Sons Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3576-f7d7410553b9f337e536508d08ed56750ccf129d4f9c05e9f2c1676f6266b8253</citedby><cites>FETCH-LOGICAL-c3576-f7d7410553b9f337e536508d08ed56750ccf129d4f9c05e9f2c1676f6266b8253</cites><orcidid>0000-0003-2688-8522</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fijlh.13756$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fijlh.13756$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/34761527$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mizuta, Shumpei</creatorcontrib><creatorcontrib>Yamane, Noriko</creatorcontrib><creatorcontrib>Mononobe, Saya</creatorcontrib><creatorcontrib>Watanabe, Asami</creatorcontrib><creatorcontrib>Kitamura, Ritsuko</creatorcontrib><creatorcontrib>Takahara, Tadamori</creatorcontrib><creatorcontrib>Matsushima, Chieko</creatorcontrib><creatorcontrib>Yoshida, Atushi</creatorcontrib><creatorcontrib>Okamoto, Seiji</creatorcontrib><creatorcontrib>Tanaka, Kuniaki</creatorcontrib><creatorcontrib>Iwai, Atsushi</creatorcontrib><creatorcontrib>Ikegawa, Atsuko</creatorcontrib><creatorcontrib>Wada, Takahito</creatorcontrib><creatorcontrib>Usami, Ikuya</creatorcontrib><creatorcontrib>Maihara, Toshiro</creatorcontrib><creatorcontrib>Komai, Takao</creatorcontrib><creatorcontrib>Heike, Toshio</creatorcontrib><creatorcontrib>Nishida, Yoshinobu</creatorcontrib><creatorcontrib>Kobayashi, Kenichiro</creatorcontrib><title>Sensitive detection of GATA1 mutations using complementary DNA‐based analysis for transient abnormal myelopoiesis associated with the Down syndrome</title><title>International journal of laboratory hematology</title><addtitle>Int J Lab Hematol</addtitle><description>Introduction GATA1 mutation plays an important role in initiating transient abnormal myelopoiesis (TAM) and in the clonal evolution towards acute megakaryoblastic leukaemia (AMKL) associated with Down syndrome (DS). This study aimed to develop and validate the clinical utility of a complementary DNA (cDNA) analysis in parallel with the conventional genomic DNA (gDNA) Sanger sequencing (Ss), as an initial screening test for GATA1 mutations. Methods GATA1 mutations were evaluated using both gDNA and cDNA in 14 DS patients using Ss and fragment analysis (FA), respectively. Results The detection sensitivity of conventional gDNA sequencing was limited in low blast percentage TAM (LBP‐TAM); however, cDNA‐based Ss readily detected all the pathognomonic GATA1 mutations. The cDNA‐based FA readily detected GATA1 frameshift mutation with a reliable sensitivity ranging from 0.005% to 0.01% of clonal cells. 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This study aimed to develop and validate the clinical utility of a complementary DNA (cDNA) analysis in parallel with the conventional genomic DNA (gDNA) Sanger sequencing (Ss), as an initial screening test for GATA1 mutations. Methods GATA1 mutations were evaluated using both gDNA and cDNA in 14 DS patients using Ss and fragment analysis (FA), respectively. Results The detection sensitivity of conventional gDNA sequencing was limited in low blast percentage TAM (LBP‐TAM); however, cDNA‐based Ss readily detected all the pathognomonic GATA1 mutations. The cDNA‐based FA readily detected GATA1 frameshift mutation with a reliable sensitivity ranging from 0.005% to 0.01% of clonal cells. Conclusions GATA1 mutations are heterogeneous; therefore, we would like to propose a dual cDNA and gDNA analysis as a standard diagnostic approach, especially for LBP‐TAM. cDNA‐based FA promises an excellent sensitivity for detecting frameshift GATA1 mutations in the longitudinal clonal evolution towards AMKL without using a patient specific primer.</abstract><cop>England</cop><pub>Wiley Subscription Services, Inc</pub><pmid>34761527</pmid><doi>10.1111/ijlh.13756</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-2688-8522</orcidid></addata></record>
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subjects Complementary DNA
DNA sequencing
DNA, Complementary
Down syndrome
Down Syndrome - complications
Down Syndrome - diagnosis
Down Syndrome - genetics
Down's syndrome
fragment analysis
Frameshift mutation
GATA-1 protein
GATA1 mutation
GATA1 Transcription Factor - genetics
Humans
Leukemia
Leukemia, Megakaryoblastic, Acute - complications
Leukemia, Megakaryoblastic, Acute - diagnosis
Leukemia, Megakaryoblastic, Acute - genetics
Leukemoid Reaction - diagnosis
Leukemoid Reaction - genetics
Mutation
Myelopoiesis
Patients
Prenatal diagnosis
transient abnormal myelopoiesis
title Sensitive detection of GATA1 mutations using complementary DNA‐based analysis for transient abnormal myelopoiesis associated with the Down syndrome
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