Induction of circulating CD133+ stem cells committed to cirrhotic livers in waitlisted patients
Studies on the regenerative capabilities of tissues have shown that damaged liver can recover using hematopoietic stem cells (HSCs), which are able not only to replace cells in the target organ, but can also deliver trophic factors that support endogenous liver regeneration. There is practically no...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | Russian |
| Published: |
Federal Research Center of Transplantology and Artificial Organs named after V.I.Shumakov
2021-01-01
|
| Series: | Вестник трансплантологии и искусственных органов |
| Subjects: | |
| Online Access: | https://journal.transpl.ru/vtio/article/view/1261 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849774656770277376 |
|---|---|
| author | A. N. Shoutko O. A. Gerasimova N. V. Marchenko F. K. Zherebtsov |
| author_facet | A. N. Shoutko O. A. Gerasimova N. V. Marchenko F. K. Zherebtsov |
| author_sort | A. N. Shoutko |
| collection | DOAJ |
| description | Studies on the regenerative capabilities of tissues have shown that damaged liver can recover using hematopoietic stem cells (HSCs), which are able not only to replace cells in the target organ, but can also deliver trophic factors that support endogenous liver regeneration. There is practically no data on how organ-derived humoral signals involve such morphogenic/trophic cells in circulation. Objective: to investigate the role of non-invasive vibromechanical percutaneous action on the liver in cirrhosis by quantification of CD133+ lymphoid HSCs with specific hepatic marker alpha-fetoprotein (AFP) in patients awaiting liver transplantation. Materials and methods. In order to increase the number of AFP+ part of CD133+ stem lymphoid cells in the blood, the patient’s cirrhotic liver was mechanically activated by transcutaneous microvibration using electromagnetic vibrophones in contact with the skin. This generated mechanical impulses with a 10 μm amplitude and a smoothly varying frequency from 0.03 kHz to 18 kHz and back to within one cycle lasting 1 minute. The amount of AFP+ lymphocyte fraction in the total content of CD133+ HSCs in lymphocytes of potential recipients was monitored by flow cytometry before and during daily 15-minute sonication of the skin zone corresponding to the liver projection for three weeks with eight synphased vibraphones. Results. Sonication of the liver projection zone significantly increased the number of liver-specific CD133+ AFP+ lymphocytes by 2–3 times compared to the baseline values. Repeated similar sonication of the same site after a three-week break showed a statistically insignificant increase from the initial level. With a similar effect on the spinal projection in the control group of waitlisted patients with cirrhosis, there was no increase in CD133+ AFP+ lymphocytes. Conclusion. Mechanical stress prompts the organ to secrete specific humoral signals that provoke the bone marrow to produce additional lymphoid stem cells committed to the liver and recruit them into circulation. |
| format | Article |
| id | doaj-art-fee7e2be6987407da0ba13b8601d7486 |
| institution | DOAJ |
| issn | 1995-1191 |
| language | Russian |
| publishDate | 2021-01-01 |
| publisher | Federal Research Center of Transplantology and Artificial Organs named after V.I.Shumakov |
| record_format | Article |
| series | Вестник трансплантологии и искусственных органов |
| spelling | doaj-art-fee7e2be6987407da0ba13b8601d74862025-08-20T03:01:38ZrusFederal Research Center of Transplantology and Artificial Organs named after V.I.ShumakovВестник трансплантологии и искусственных органов1995-11912021-01-01224435110.15825/1995-1191-2020-4-43-51917Induction of circulating CD133+ stem cells committed to cirrhotic livers in waitlisted patientsA. N. Shoutko0O. A. Gerasimova1N. V. Marchenko2F. K. Zherebtsov3Granov Russian Scientific Center of Radiology and Surgical TechnologyGranov Russian Scientific Center of Radiology and Surgical Technology; St. Petersburg State UniversityGranov Russian Scientific Center of Radiology and Surgical Technology; St. Petersburg State UniversityGranov Russian Scientific Center of Radiology and Surgical TechnologyStudies on the regenerative capabilities of tissues have shown that damaged liver can recover using hematopoietic stem cells (HSCs), which are able not only to replace cells in the target organ, but can also deliver trophic factors that support endogenous liver regeneration. There is practically no data on how organ-derived humoral signals involve such morphogenic/trophic cells in circulation. Objective: to investigate the role of non-invasive vibromechanical percutaneous action on the liver in cirrhosis by quantification of CD133+ lymphoid HSCs with specific hepatic marker alpha-fetoprotein (AFP) in patients awaiting liver transplantation. Materials and methods. In order to increase the number of AFP+ part of CD133+ stem lymphoid cells in the blood, the patient’s cirrhotic liver was mechanically activated by transcutaneous microvibration using electromagnetic vibrophones in contact with the skin. This generated mechanical impulses with a 10 μm amplitude and a smoothly varying frequency from 0.03 kHz to 18 kHz and back to within one cycle lasting 1 minute. The amount of AFP+ lymphocyte fraction in the total content of CD133+ HSCs in lymphocytes of potential recipients was monitored by flow cytometry before and during daily 15-minute sonication of the skin zone corresponding to the liver projection for three weeks with eight synphased vibraphones. Results. Sonication of the liver projection zone significantly increased the number of liver-specific CD133+ AFP+ lymphocytes by 2–3 times compared to the baseline values. Repeated similar sonication of the same site after a three-week break showed a statistically insignificant increase from the initial level. With a similar effect on the spinal projection in the control group of waitlisted patients with cirrhosis, there was no increase in CD133+ AFP+ lymphocytes. Conclusion. Mechanical stress prompts the organ to secrete specific humoral signals that provoke the bone marrow to produce additional lymphoid stem cells committed to the liver and recruit them into circulation.https://journal.transpl.ru/vtio/article/view/1261hematopoietic stem cellscirrhosisregenerationwaiting listmechanical microvibration |
| spellingShingle | A. N. Shoutko O. A. Gerasimova N. V. Marchenko F. K. Zherebtsov Induction of circulating CD133+ stem cells committed to cirrhotic livers in waitlisted patients Вестник трансплантологии и искусственных органов hematopoietic stem cells cirrhosis regeneration waiting list mechanical microvibration |
| title | Induction of circulating CD133+ stem cells committed to cirrhotic livers in waitlisted patients |
| title_full | Induction of circulating CD133+ stem cells committed to cirrhotic livers in waitlisted patients |
| title_fullStr | Induction of circulating CD133+ stem cells committed to cirrhotic livers in waitlisted patients |
| title_full_unstemmed | Induction of circulating CD133+ stem cells committed to cirrhotic livers in waitlisted patients |
| title_short | Induction of circulating CD133+ stem cells committed to cirrhotic livers in waitlisted patients |
| title_sort | induction of circulating cd133 stem cells committed to cirrhotic livers in waitlisted patients |
| topic | hematopoietic stem cells cirrhosis regeneration waiting list mechanical microvibration |
| url | https://journal.transpl.ru/vtio/article/view/1261 |
| work_keys_str_mv | AT anshoutko inductionofcirculatingcd133stemcellscommittedtocirrhoticliversinwaitlistedpatients AT oagerasimova inductionofcirculatingcd133stemcellscommittedtocirrhoticliversinwaitlistedpatients AT nvmarchenko inductionofcirculatingcd133stemcellscommittedtocirrhoticliversinwaitlistedpatients AT fkzherebtsov inductionofcirculatingcd133stemcellscommittedtocirrhoticliversinwaitlistedpatients |