Reg3α and Reg3β Expressions Followed by JAK2/STAT3 Activation Play a Pivotal Role in the Acceleration of Liver Hypertrophy in a Rat ALPPS Model
To explore the underlying mechanism of rapid liver hypertrophy by liver partition in associating liver partition and portal vein ligation for staged hepatectomy (ALPPS), liver partition at different sites was investigated. Increased inflammatory cytokines owing to the liver partition have been repor...
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| Format: | Article |
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MDPI AG
2020-06-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/21/11/4077 |
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| author | Naohiko Otsuka Masato Yoshioka Yuki Abe Yasuhiko Nakagawa Hiroshi Uchinami Yuzo Yamamoto |
| author_facet | Naohiko Otsuka Masato Yoshioka Yuki Abe Yasuhiko Nakagawa Hiroshi Uchinami Yuzo Yamamoto |
| author_sort | Naohiko Otsuka |
| collection | DOAJ |
| description | To explore the underlying mechanism of rapid liver hypertrophy by liver partition in associating liver partition and portal vein ligation for staged hepatectomy (ALPPS), liver partition at different sites was investigated. Increased inflammatory cytokines owing to the liver partition have been reportedly responsible. If this were true, rapid liver hypertrophy should be achieved regardless of where the liver was split. A male Sprague-Dawley rat model was created, in which a liver split was placed inside the portal vein ligated lobe (PiLL), in addition to the ALPPS and portal vein ligation (PVL) models. Liver regeneration rate, inflammatory cytokine levels, activation status of the Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) pathway and expressions of regenerating islet-derived (Reg)3α and Reg3β were investigated. The liver regeneration rate was significantly higher in the ALPPS group than in the PiLL group, whereas inflammatory cytokine levels were nearly equal. Additional volume increase in ALPPS group over PVL and PiLL groups was JAK2/STAT3-dependent. Reg3α and Reg3β expressions were observed only in the ALPPS group. An increase in inflammatory cytokines was not enough to describe the mechanism of rapid liver hypertrophy in ALPPS. Expressions of Reg3α and Reg3β could play an important role in conjunction with an activation of the JAK2/STAT3 pathway. |
| first_indexed | 2024-03-10T19:19:17Z |
| format | Article |
| id | doaj.art-cd8b0721288541a59b14e13363dec23f |
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| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T19:19:17Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-cd8b0721288541a59b14e13363dec23f2023-11-20T03:07:24ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-06-012111407710.3390/ijms21114077Reg3α and Reg3β Expressions Followed by JAK2/STAT3 Activation Play a Pivotal Role in the Acceleration of Liver Hypertrophy in a Rat ALPPS ModelNaohiko Otsuka0Masato Yoshioka1Yuki Abe2Yasuhiko Nakagawa3Hiroshi Uchinami4Yuzo Yamamoto5Department of Gastroenterological Surgery, Akita University Graduate School of Medicine, Akita 0108543, JapanDepartment of Nursing, Akita University Graduate School of Health Science, Akita 0108543, JapanDepartment of Gastroenterological Surgery, Akita University Graduate School of Medicine, Akita 0108543, JapanDepartment of Gastroenterological Surgery, Akita University Graduate School of Medicine, Akita 0108543, JapanDepartment of Gastroenterological Surgery, Akita University Graduate School of Medicine, Akita 0108543, JapanDepartment of Gastroenterological Surgery, Akita University Graduate School of Medicine, Akita 0108543, JapanTo explore the underlying mechanism of rapid liver hypertrophy by liver partition in associating liver partition and portal vein ligation for staged hepatectomy (ALPPS), liver partition at different sites was investigated. Increased inflammatory cytokines owing to the liver partition have been reportedly responsible. If this were true, rapid liver hypertrophy should be achieved regardless of where the liver was split. A male Sprague-Dawley rat model was created, in which a liver split was placed inside the portal vein ligated lobe (PiLL), in addition to the ALPPS and portal vein ligation (PVL) models. Liver regeneration rate, inflammatory cytokine levels, activation status of the Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) pathway and expressions of regenerating islet-derived (Reg)3α and Reg3β were investigated. The liver regeneration rate was significantly higher in the ALPPS group than in the PiLL group, whereas inflammatory cytokine levels were nearly equal. Additional volume increase in ALPPS group over PVL and PiLL groups was JAK2/STAT3-dependent. Reg3α and Reg3β expressions were observed only in the ALPPS group. An increase in inflammatory cytokines was not enough to describe the mechanism of rapid liver hypertrophy in ALPPS. Expressions of Reg3α and Reg3β could play an important role in conjunction with an activation of the JAK2/STAT3 pathway.https://www.mdpi.com/1422-0067/21/11/4077ALPPSReg3αReg3βJAK2/STAT3 pathwayliver hypertrophy |
| spellingShingle | Naohiko Otsuka Masato Yoshioka Yuki Abe Yasuhiko Nakagawa Hiroshi Uchinami Yuzo Yamamoto Reg3α and Reg3β Expressions Followed by JAK2/STAT3 Activation Play a Pivotal Role in the Acceleration of Liver Hypertrophy in a Rat ALPPS Model International Journal of Molecular Sciences ALPPS Reg3α Reg3β JAK2/STAT3 pathway liver hypertrophy |
| title | Reg3α and Reg3β Expressions Followed by JAK2/STAT3 Activation Play a Pivotal Role in the Acceleration of Liver Hypertrophy in a Rat ALPPS Model |
| title_full | Reg3α and Reg3β Expressions Followed by JAK2/STAT3 Activation Play a Pivotal Role in the Acceleration of Liver Hypertrophy in a Rat ALPPS Model |
| title_fullStr | Reg3α and Reg3β Expressions Followed by JAK2/STAT3 Activation Play a Pivotal Role in the Acceleration of Liver Hypertrophy in a Rat ALPPS Model |
| title_full_unstemmed | Reg3α and Reg3β Expressions Followed by JAK2/STAT3 Activation Play a Pivotal Role in the Acceleration of Liver Hypertrophy in a Rat ALPPS Model |
| title_short | Reg3α and Reg3β Expressions Followed by JAK2/STAT3 Activation Play a Pivotal Role in the Acceleration of Liver Hypertrophy in a Rat ALPPS Model |
| title_sort | reg3α and reg3β expressions followed by jak2 stat3 activation play a pivotal role in the acceleration of liver hypertrophy in a rat alpps model |
| topic | ALPPS Reg3α Reg3β JAK2/STAT3 pathway liver hypertrophy |
| url | https://www.mdpi.com/1422-0067/21/11/4077 |
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