Global miRNA profiling reveals key molecules that contribute to different chronic lymphocytic leukemia incidences in Asian and Western populations
It has been known for decades that the incidence of chronic lymphocytic leukemia (CLL) is significantly lower in Asia than in Western countries, but the reason responsible for this difference still remains a major knowledge gap. Using GeneChip® miRNA array to analyze the global microRNA expression in B lymphocytes from Asian and Western CLL patients and healthy individuals, we have identified microRNA with CLL-promoting or suppressive functions that are differentially expressed in Asian and Western individuals. In particular, miR-4485 is upregulated in CLL patients of both ethnic groups, and its expression is significantly lower in Asian healthy individuals. Genetic silencing of miR-4485 in CLL cells suppresses leukemia cell growth, whereas ectopic expression of miR-4485 promotes cell proliferation. Mechanistically, miR-4485 exerts its CLL-promoting activity by inhibiting the expression of TGR5 and activating the ERK1/2 pathway. In contrast, miR-138, miR-181a, miR- 181c, miR-181d, and miR-363 with tumor-suppressive function are highly expressed in Asian healthy individuals. Our study suggests that differential expression of several important microRNA with pro- or anti-CLL functions in Asian and Western B lymphocytes likely contributes to the difference in CLL incidence between the two ethnic groups, and that miR-4485 and its downstream molecule TGR5 could be potential therapeutic targets.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2024 |
|---|---|
| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:109 |
|---|---|
| Enthalten in: |
Haematologica - 109(2024), 2 vom: 01. Feb., Seite 479-492 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Liu, Panpan [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Journal Article |
|---|
| Anmerkungen: |
Date Completed 02.02.2024 Date Revised 02.02.2024 published: Electronic Citation Status MEDLINE |
|---|
| doi: |
10.3324/haematol.2023.283181 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM36144544X |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM36144544X | ||
| 003 | DE-627 | ||
| 005 | 20240202232007.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.3324/haematol.2023.283181 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1278.xml |
| 035 | |a (DE-627)NLM36144544X | ||
| 035 | |a (NLM)37646669 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Liu, Panpan |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Global miRNA profiling reveals key molecules that contribute to different chronic lymphocytic leukemia incidences in Asian and Western populations |
| 264 | 1 | |c 2024 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 02.02.2024 | ||
| 500 | |a Date Revised 02.02.2024 | ||
| 500 | |a published: Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a It has been known for decades that the incidence of chronic lymphocytic leukemia (CLL) is significantly lower in Asia than in Western countries, but the reason responsible for this difference still remains a major knowledge gap. Using GeneChip® miRNA array to analyze the global microRNA expression in B lymphocytes from Asian and Western CLL patients and healthy individuals, we have identified microRNA with CLL-promoting or suppressive functions that are differentially expressed in Asian and Western individuals. In particular, miR-4485 is upregulated in CLL patients of both ethnic groups, and its expression is significantly lower in Asian healthy individuals. Genetic silencing of miR-4485 in CLL cells suppresses leukemia cell growth, whereas ectopic expression of miR-4485 promotes cell proliferation. Mechanistically, miR-4485 exerts its CLL-promoting activity by inhibiting the expression of TGR5 and activating the ERK1/2 pathway. In contrast, miR-138, miR-181a, miR- 181c, miR-181d, and miR-363 with tumor-suppressive function are highly expressed in Asian healthy individuals. Our study suggests that differential expression of several important microRNA with pro- or anti-CLL functions in Asian and Western B lymphocytes likely contributes to the difference in CLL incidence between the two ethnic groups, and that miR-4485 and its downstream molecule TGR5 could be potential therapeutic targets | ||
| 650 | 4 | |a Journal Article | |
| 650 | 7 | |a MicroRNAs |2 NLM | |
| 650 | 7 | |a MIRN138 microRNA, human |2 NLM | |
| 650 | 7 | |a MIRN363 microRNA, human |2 NLM | |
| 700 | 1 | |a Wang, Kefeng |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jianan |e verfasserin |4 aut | |
| 700 | 1 | |a Ogasawara, Marcia A |e verfasserin |4 aut | |
| 700 | 1 | |a Xia, Zhongjun |e verfasserin |4 aut | |
| 700 | 1 | |a Wierda, William G |e verfasserin |4 aut | |
| 700 | 1 | |a Keating, Michael J |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Yiqing |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Peng |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Haematologica |d 1947 |g 109(2024), 2 vom: 01. Feb., Seite 479-492 |w (DE-627)NLM000081892 |x 1592-8721 |7 nnns |
| 773 | 1 | 8 | |g volume:109 |g year:2024 |g number:2 |g day:01 |g month:02 |g pages:479-492 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.3324/haematol.2023.283181 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 109 |j 2024 |e 2 |b 01 |c 02 |h 479-492 | ||