1.Initial Clinical Experience of Pure Single-Incision Robotic Right Hemicolectomy with da Vinci SP Platform
Gyoung Tae NOH ; Myunghyun HAN ; Soon Sup CHUNG ; Ryung Ah LEE ; Kwang Ho KIM
Journal of Minimally Invasive Surgery 2019;22(4):181-183
The da Vinci SP Surgical System (dVSP; Intuitive Surgical, Sunnyvale, CA, USA) was introduced to perform pure single-incision surgery in 2018. This new surgical platform demonstrated favorable performance compared with the positive aspect of single-incision laparoscopic surgery and robot surgery. To date, its use has mainly been in urological and gynecological procedures. We report a case of successful robotic single-incision right hemicolectomy for cecal cancer with the dVSP.
Cecal Neoplasms
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Laparoscopy
2.Generation of Induced Pluripotent Stem Cells from Lymphoblastoid Cell Lines by Electroporation of Episomal Vectors
Myunghyun KIM ; Junmyeong PARK ; Sujin KIM ; Dong Wook HAN ; Borami SHIN ; Hans Robert SCHÖLER ; Johnny KIM ; Kee-Pyo KIM
International Journal of Stem Cells 2023;16(1):36-43
Background and Objectives:
Lymphoblastoid cell lines (LCLs) deposited from disease-affected individuals could be a valuable donor cell source for generating disease-specific induced pluripotent stem cells (iPSCs). However, generation of iPSCs from the LCLs is still challenging, as yet no effective gene delivery strategy has been developed.
Methods:
and Results: Here, we reveal an effective gene delivery method specifically for LCLs. We found that LCLs appear to be refractory toward retroviral and lentiviral transduction. Consequently, lentiviral and retroviral transduction of OCT4, SOX2, KFL4 and c-MYC into LCLs does not elicit iPSC colony formation. Interestingly, however we found that transfection of oriP/EBNA-1-based episomal vectors by electroporation is an efficient gene delivery system into LCLs, enabling iPSC generation from LCLs. These iPSCs expressed pluripotency makers (OCT4, NANOG, SSEA4, SALL4) and could form embryoid bodies.
Conclusions
Our data show that electroporation is an effective gene delivery method with which LCLs can be efficiently reprogrammed into iPSCs.
3.Erratum: Post-Transplant Lymphoproliferative Diseases in Pediatric Kidney Allograft Recipients with Epstein-Barr Virus Viremia
Hyesun HYUN ; Eujin PARK ; Myunghyun CHO ; Sang Il MIN ; Jongwon HA ; Hyoung Jin KANG ; Hee Young SHIN ; Il Soo HA ; Hae Il CHEONG ; Yo Han AHN ; Hee Gyung KANG
Journal of Korean Medical Science 2020;35(2):29-
4.Post-Transplant Lymphoproliferative Diseases in Pediatric Kidney Allograft Recipients with Epstein-Barr Virus Viremia
Hyesun HYUN ; Eujin PARK ; Myunghyun CHO ; Sang Il MIN ; Jongwon HA ; Hyoung Jin KANG ; Hee Young SHIN ; Il Soo HA ; Hae Il CHEONG ; Yo Han AHN ; Hee Gyung KANG
Journal of Korean Medical Science 2019;34(30):e203-
BACKGROUND: Post-transplant lymphoproliferative disease (PTLD) is one of the major complications of organ transplantation, especially in children with Epstein-Barr virus (EBV) viremia (EV). We performed a retrospective study to evaluate risk factors for PTLD in children with EV. METHODS: Among 199 pediatric kidney transplantation (KT) recipients at our center from January 2001 to October 2015, records of those with EBV viral loads of > 1,000 copies/mL and/or PTLD were reviewed. RESULTS: Diagnosis of PTLD was made in seven patients (PTLD group), and 39 patients had EV only (EV only group). The median time from KT to EV and PTLD diagnosis was 6.7 (range 0.4–47.8) months and 8.2 (range, 2.8–98.9) months, respectively. There were no significant differences between the groups in terms of sex, age at transplantation, donor type, EBV viral load, or EV-free duration after KT. Higher tacrolimus level before EV (hazard ratio, 44.5; P = 0.003) was an independent risk factor for PTLD in multivariate Cox regression analysis. Six patients with a high EBV load (median 171,639 copies/mL) were treated with preemptive rituximab (RTX) therapy, resulting in transient reduction of EBV load. None of these patients developed PTLD (median follow-up 51.5 months); however, two had neutropenia and two developed infection requiring hospital admission. CONCLUSION: In pediatric KT recipients, higher tacrolimus levels were associated with a higher incidence of PTLD. Conversely, those who received preemptive RTX for EV did not develop PTLD.
Allografts
;
Child
;
Diagnosis
;
Follow-Up Studies
;
Herpesvirus 4, Human
;
Humans
;
Incidence
;
Kidney Transplantation
;
Kidney
;
Neutropenia
;
Organ Transplantation
;
Retrospective Studies
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Risk Factors
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Rituximab
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Tacrolimus
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Tissue Donors
;
Transplants
;
Viral Load
;
Viremia
5.Erratum: Post-Transplant Lymphoproliferative Diseases in Pediatric Kidney Allograft Recipients with Epstein-Barr Virus Viremia
Hyesun HYUN ; Eujin PARK ; Myunghyun CHO ; Sang Il MIN ; Jongwon HA ; Hyoung Jin KANG ; Hee Young SHIN ; Il Soo HA ; Hae Il CHEONG ; Yo Han AHN ; Hee Gyung KANG
Journal of Korean Medical Science 2020;35(2):e29-
The authors regret that there were errors in (Text/Table 1). This notice corrects on page 4 and page 5.