AIM: To investigate whether irradiation (IR) and partial hepatectomy (PH) may prepare the host liver for nonparenchymal cell (NPC) transplantation.METHODS: Livers of dipeptidyl peptidase(DPP)-deficient rats were pre-c...AIM: To investigate whether irradiation (IR) and partial hepatectomy (PH) may prepare the host liver for nonparenchymal cell (NPC) transplantation.METHODS: Livers of dipeptidyl peptidase(DPP)-deficient rats were pre-conditioned with external beam IR (25 Gy) delivered to two-thirds of the right liver lobules followed by a one-third PH of the untreated lob-ule. DPP-positive liver cells (NPC preparations enriched for liver sinusoidal endothelial cells (LSECs) and hepatocytes) were transplanted via the spleen into the recipient livers. The extent and quality of donor cell engraftment and growth was studied over a long-term interval of 16 wk after transplantation.RESULTS: Host liver staining demonstrated 3 different repopulation types. Well def ined clusters of donor-derived hepatocytes with canalicular expression of DPP were detectable either adjacent to or in between large areas of donor cells (covering up to 90% of the section plane) co-expressing the endothelial marker platelet endothelial cell adhesion molecule. The third type consisted of formations of DPP-positive duct-like structures which co-localized with biliary epithelial CD49f.CONCLUSION: Liver IR and PH as a preconditioning stimulus enables multiple cell liver repopulation by donor hepatocytes, LSECs, and bile duct cells.展开更多
This paper resports the response of inoperable primary liver cancer to whole liver irradiation(WLI)by movingstrip technique(MST)during the period from 1980- 1988.The results showed that WLI by MST gave good response i...This paper resports the response of inoperable primary liver cancer to whole liver irradiation(WLI)by movingstrip technique(MST)during the period from 1980- 1988.The results showed that WLI by MST gave good response in this malignancy.The 5-year survival after treatment was 30.83% and median survival 25.8 months.The analysis of prognostic factors indicated that the higher the midplane tissue dose(mTD),the longer the survival(P<0.001),and that the survival of those patients tumor diameter was>8 to<13 cm and/or tumor volume>50% to <75% of liver volume was longer than that of there with tumor diameter of≥13 cm and/or tumor volume≥75% of the liver volume(P<0. 001 ).Traditional Chinese medicine is an indispensable therapy during the period of WLI by MST.Both clinical and experimental studies suggest that WLI by MST can enhance the therapeutic effect.展开更多
文摘AIM: To investigate whether irradiation (IR) and partial hepatectomy (PH) may prepare the host liver for nonparenchymal cell (NPC) transplantation.METHODS: Livers of dipeptidyl peptidase(DPP)-deficient rats were pre-conditioned with external beam IR (25 Gy) delivered to two-thirds of the right liver lobules followed by a one-third PH of the untreated lob-ule. DPP-positive liver cells (NPC preparations enriched for liver sinusoidal endothelial cells (LSECs) and hepatocytes) were transplanted via the spleen into the recipient livers. The extent and quality of donor cell engraftment and growth was studied over a long-term interval of 16 wk after transplantation.RESULTS: Host liver staining demonstrated 3 different repopulation types. Well def ined clusters of donor-derived hepatocytes with canalicular expression of DPP were detectable either adjacent to or in between large areas of donor cells (covering up to 90% of the section plane) co-expressing the endothelial marker platelet endothelial cell adhesion molecule. The third type consisted of formations of DPP-positive duct-like structures which co-localized with biliary epithelial CD49f.CONCLUSION: Liver IR and PH as a preconditioning stimulus enables multiple cell liver repopulation by donor hepatocytes, LSECs, and bile duct cells.
文摘This paper resports the response of inoperable primary liver cancer to whole liver irradiation(WLI)by movingstrip technique(MST)during the period from 1980- 1988.The results showed that WLI by MST gave good response in this malignancy.The 5-year survival after treatment was 30.83% and median survival 25.8 months.The analysis of prognostic factors indicated that the higher the midplane tissue dose(mTD),the longer the survival(P<0.001),and that the survival of those patients tumor diameter was>8 to<13 cm and/or tumor volume>50% to <75% of liver volume was longer than that of there with tumor diameter of≥13 cm and/or tumor volume≥75% of the liver volume(P<0. 001 ).Traditional Chinese medicine is an indispensable therapy during the period of WLI by MST.Both clinical and experimental studies suggest that WLI by MST can enhance the therapeutic effect.
