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Ho KK, Sin SL, Au KP, Lee HH, Chan DT, Chan A. Inferior vena cava reconstruction in extended right hepatectomy. Hepatobiliary Pancreat Dis Int 2024; 23:533-534. [PMID: 38811331 DOI: 10.1016/j.hbpd.2024.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 05/13/2024] [Indexed: 05/31/2024]
Affiliation(s)
- Karin Ky Ho
- Department of Surgery, The University of Hong Kong, 102 Pok Fu Lam Road, Hong Kong, China
| | - Sui Ling Sin
- Department of Surgery, The University of Hong Kong, 102 Pok Fu Lam Road, Hong Kong, China
| | - Kin Pan Au
- Department of Surgery, The University of Hong Kong, 102 Pok Fu Lam Road, Hong Kong, China
| | - Henry Hy Lee
- Department of Surgery, Yan Chai Hospital, 7 Yan Chai Street, Hong Kong, China
| | - Daniel Tl Chan
- Department of Surgery, The University of Hong Kong, 102 Pok Fu Lam Road, Hong Kong, China
| | - Albert Chan
- Department of Surgery, The University of Hong Kong, 102 Pok Fu Lam Road, Hong Kong, China; State Key Laboratory of Liver Research (Li Ka Shing Faculty of Medicine, The University of Hong Kong), 102 Pok Fu Lam Road, Hong Kong, China.
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Silva JCFD, Diniz AL, Torres SM, Silva DA, Ribeiro HSDC, de Godoy AL, de Farias IC, Felismino TC, da Costa Junior WL, Coimbra FJF. Influence of biliary and vascular resection types on morbidity in hepatectomies with vascular involvement. J Surg Oncol 2024. [PMID: 39104086 DOI: 10.1002/jso.27718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 05/13/2024] [Indexed: 08/07/2024]
Abstract
INTRODUCTION Hepatectomies associated with vascular resections pose a technical challenge for surgeons, involving multiple reconstruction techniques. Moreover, adding clinical and surgical risks in the postoperative setting of these complex procedures are mainly due to prolonged surgical periods and potential complications inherent to vascular manipulation. Leveraging the expertise of a Cancer Center, we propose an institutional assessment utilizing the case series from A. C. Camargo Cancer Center in hepatectomies associated with vascular resection, evaluating postoperative complications and outcomes while highlighting clinical, laboratory, pathological, and surgical factors that may influence results. OBJECTIVE To assess mortality and morbidity associated with hepatectomies involving vascular resection. MATERIALS AND METHODS From a prospective database, a study was performed evaluating postoperative survival and morbidity using scoring systems such as Clavien-Dindo through a cohort analysis. RESULTS From a total of 1021 liver resections for a period of 10 years, 31 cases were evaluated from a unique cancer center in Brazil! Factors such as the performance of major hepatectomies, the need for blood transfusion, and the administration of neoadjuvant or adjuvant systemic therapy did not appear to influence the outcome of morbidity or mortality. However, the resection of the associated bile duct and the type of vascular resection seemed to influence morbidity outcomes with statistical significance (p = 0.006+ …). CONCLUSION Hepatectomies associated with vascular resections are safe in selected cases and when performed in referral centers. Factors such as associated bile duct resection and type of vascular resection should be considered for procedure indication.
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Affiliation(s)
| | - Alessandro L Diniz
- Department of Abdominal Surgery, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Silvio M Torres
- Department of Abdominal Surgery, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Dante A Silva
- Department of Abdominal Surgery, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Héber S D C Ribeiro
- Department of Abdominal Surgery, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - André Luiz de Godoy
- Department of Abdominal Surgery, A. C. Camargo Cancer Center, São Paulo, Brazil
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Tirloni L, Bartolini I, Gazia C, Scarinci A, Grazi GL. A contemporary view on vascular resections and reconstruction during hepatectomies. Updates Surg 2024:10.1007/s13304-024-01934-z. [PMID: 39007995 DOI: 10.1007/s13304-024-01934-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 07/02/2024] [Indexed: 07/16/2024]
Abstract
Oncological hepatic surgery carries the possibility to perform vascular reconstructions for advanced tumours with vessel invasion since surgery often represents the only potentially curative approach for these tumours. An extended review was conducted in an attempt to understand and clarify the latest trends in hepatectomies with vascular resections. We searched bibliographic databases including PubMed, Scopus, references from bibliographies and Cochrane Library. Information and outcomes from worldwide clinical trials were collected from qualified institutions performing hepatectomies with vascular resection and reconstruction. Careful patient selection and thorough preoperative imaging remain crucial for correct and safe surgical planning. A literature analysis shows that vascular resections carry different indications in different diseases. Despite significant advances made in imaging techniques and technical skills, reports of hepatectomies with vascular resections are still associated with high postoperative morbidity and mortality. The trend of complex liver resection with vascular resection is constantly on the increase, but more profound knowledge as well as further trials are required. Recent technological developments in multiple fields could surely provide novel approaches and enhance a new era of digital imaging and intelligent hepatic surgery.
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Affiliation(s)
- Luca Tirloni
- Department of Experimental and Clinical Medicine, University of Florence, 50134, Florence, Italy
| | - Ilenia Bartolini
- Department of Experimental and Clinical Medicine, University of Florence, 50134, Florence, Italy.
| | - Carlo Gazia
- Hepatopancreatobiliary Surgery, IRCCS - Regina Elena National Cancer Institute, 00144, Rome, Italy
| | - Andrea Scarinci
- Hepatopancreatobiliary Surgery, IRCCS - Regina Elena National Cancer Institute, 00144, Rome, Italy
| | - Gian Luca Grazi
- Department of Experimental and Clinical Medicine, University of Florence, 50134, Florence, Italy
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Laroche S, Lim C, Goumard C, Rayar M, Cherqui D, Chiche L, Barbier L, Salamé E, Mabrut JY, Lesurtel M, Truant S, Boleslawski E, Muscari F, Hobeika C, Chirica M, Buc E, Hardwigsen J, Herrero A, Navarro F, Faitot F, Bachellier P, Regimbeau JM, Laurent A, Fuks D, Soubrane O, Azoulay D, Vibert E, Scatton O. Comparing indications, complexity and outcomes of laparoscopic liver resection between centers with and without a liver transplant program: a French nationwide study. HPB (Oxford) 2024; 26:586-593. [PMID: 38341287 DOI: 10.1016/j.hpb.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/17/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND There are no data to evaluate the difference in populations and impact of centers with liver transplant programs in performing laparoscopic liver resection (LLR). METHODS This was a multicenter study including patients undergoing LLR for benign and malignant tumors at 27 French centers from 1996 to 2018. The main outcomes were postoperative severe morbidity and mortality. RESULTS A total of 3154 patients were included, and 14 centers were classified as transplant centers (N = 2167 patients, 68.7 %). The transplant centers performed more difficult LLRs and more resections for hepatocellular carcinoma (HCC) in patients who more frequently had cirrhosis. A higher rate of performing the Pringle maneuver, a lower rate of blood loss and a higher rate of open conversion (all p < 0.05) were observed in the transplant centers. There was no association between the presence of a liver transplant program and either postoperative severe morbidity (<10 % in each group; p = 0.228) or mortality (1 % in each group; p = 0.915). CONCLUSIONS Most HCCs, difficult LLRs, and cirrhotic patients are treated in transplant centers. We show that all centers can achieve comparable safety and quality of care in LLR independent of the presence of a liver transplant program.
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Affiliation(s)
- Sophie Laroche
- Sorbonne University, Paris, France; Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Pitié-Salpêtrière Hospital, Paris, France
| | - Chetana Lim
- Sorbonne University, Paris, France; Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Pitié-Salpêtrière Hospital, Paris, France; Research Unit, Université de Picardie-Jules Verne, UR UPJV 7518 SSPC, Amiens, France
| | - Claire Goumard
- Sorbonne University, Paris, France; Centre de Recherche de Saint-Antoine (CRSA), INSERM, UMRS-938, Paris, France
| | - Michel Rayar
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Claude Huriez Hospital, Rennes, France
| | - Daniel Cherqui
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Paul Brousse Hospital, Villejuif, France
| | - Laurence Chiche
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Bordeaux University Hospital-Magellan Centre, Bordeaux, France
| | - Louise Barbier
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Bordeaux University Hospital-Magellan Centre, Bordeaux, France
| | - Ephrem Salamé
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Trousseau Hospital, Tours Regional University Hospital, Tours, France
| | - Jean-Yves Mabrut
- Department of Hepatopancreato-Biliary Surgery and Liver Transplantation, La Croix Rousse Hospital, Lyon, France
| | - Mickael Lesurtel
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Beaujon Hospital, Clichy, France
| | - Stéphanie Truant
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Beaujon Hospital, Clichy, France
| | - Emmanuel Boleslawski
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Claude Huriez Hospital, Lille, France
| | - Fabrice Muscari
- Department of Hepato-Pancreatic-Biliary Surgery and Liver Transplantation, Rangueil Hospital, Toulouse, France
| | - Christian Hobeika
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Beaujon Hospital, Clichy, France
| | - Mircea Chirica
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Grenoble Alpes Hospital, Grenoble, France
| | - Emmanuel Buc
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Estaing Hospital, Clermont-Ferrand, France
| | - Jean Hardwigsen
- Department of Hepatopancreato-Biliary Surgery and Liver Transplantation, La Timone Hospital, Marseille, France
| | - Astrid Herrero
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Saint-Eloi Hospital, Montpellier, France
| | - Francis Navarro
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Saint-Eloi Hospital, Montpellier, France
| | - François Faitot
- Department of Hepatopancreato-Biliary Surgery and Liver Transplantation, Hautepierre Hospital, Strasbourg, France
| | - Philippe Bachellier
- Department of Hepatopancreato-Biliary Surgery and Liver Transplantation, Hautepierre Hospital, Strasbourg, France
| | - Jean-Marc Regimbeau
- Department of Digestive Surgery, Amiens University Hospital, Amiens, France; Research Unit, Université de Picardie-Jules Verne, UR UPJV 7518 SSPC, Amiens, France
| | - Alexis Laurent
- Department of Hepato-Pancreato-Biliary Surgery, APHP Henri Mondor Hospital, Creteil, France
| | - David Fuks
- Department of Hepato-Pancreato-Biliary Surgery, APHP Cochin Hospital, Paris, France
| | - Olivier Soubrane
- Sorbonne University, Paris, France; Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Pitié-Salpêtrière Hospital, Paris, France; Department of Digestive, Oncological and Metabolic Surgery, Institut Mutualiste Montsouris, Paris France
| | - Daniel Azoulay
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Paul Brousse Hospital, Villejuif, France
| | - Eric Vibert
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Paul Brousse Hospital, Villejuif, France
| | - Olivier Scatton
- Sorbonne University, Paris, France; Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, AP-HP Pitié-Salpêtrière Hospital, Paris, France; Centre de Recherche de Saint-Antoine (CRSA), INSERM, UMRS-938, Paris, France.
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Romatoski KS, Chung SH, de Geus SWL, Papageorge MV, Woods AP, Rasic G, Ng SC, Tseng JF, Sachs TE. Combined High-Volume Common Complex Cancer Operations Safeguard Long-Term Survival in a Low-Volume Individual Cancer Operation Setting. Ann Surg Oncol 2023; 30:5352-5360. [PMID: 37310536 DOI: 10.1245/s10434-023-13680-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 05/08/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND We previously demonstrated the importance of combined complex surgery volume on short-term outcomes of high-risk cancer operations. This study investigates the impact of combined common complex cancer operation volume on long-term outcomes at hospitals with low cancer-specific operation volumes. PATIENTS AND METHODS A retrospective cohort of National Cancer Data Base (2004-2019) patients undergoing surgery for hepatocellular carcinoma, non-small cell lung cancers, or pancreatic, gastric, esophageal, or rectal adenocarcinomas was utilized. Three separate cohorts were established: low-volume hospitals (LVH), mixed-volume hospitals (MVH) with low-volume individual cancer operations and high-volume total complex operations, and high-volume hospitals (HVH). Survival analyses were performed for overall, early-, and late-stage disease. RESULTS The 5 year survival was significantly better at MVH and HVH compared with LVH, for all operations except late-stage hepatectomy (HVH survival > LVH and MVH). The 5 year survival probability was similar between MVH and HVH for operations on late-stage cancers. Early and overall survival for gastrectomy, esophagectomy, and proctectomy were equivalent between MVH and HVH. While early and overall survival for pancreatectomy were benefited by HVH over MVH, the opposite was true for lobectomy/pneumonectomy, which were benefited by MVH over HVH; however, none of these differences were likely to have an effect clinically. Only hepatectomy patients demonstrated statistical and clinical significance in 5 year survival at HVH compared with MVH for overall survival. CONCLUSIONS MVH hospitals performing sufficient complex common cancer operations demonstrate similar long-term survival for specific high-risk cancer operations to HVH. MVH provide an adjunctive model to the centralization of complex cancer surgery, while maintaining quality and access.
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Affiliation(s)
- Kelsey S Romatoski
- Department of Surgery, Boston Medical Center, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Sophie H Chung
- Department of Surgery, Boston Medical Center, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
| | - Susanna W L de Geus
- Department of Surgery, Boston Medical Center, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Marianna V Papageorge
- Department of Surgery, Yale New Haven Hospital, Yale School of Medicine, New Haven, CT, USA
| | - Alison P Woods
- Division of Surgical Oncology, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Gordana Rasic
- Department of Surgery, Boston Medical Center, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
| | - Sing Chau Ng
- Department of Surgery, Boston Medical Center, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
| | - Jennifer F Tseng
- Department of Surgery, Boston Medical Center, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
| | - Teviah E Sachs
- Department of Surgery, Boston Medical Center, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA.
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Chiodo Ortiz A, Choubey AP, Pai K, Khan S, Mishra A, Bullock B, Sureddi S, James R, Siddique AB, Koizumi N, Ortiz J. Kidney transplant surgical director training: Urologists represent a functional alternative to general surgeons. Clin Transplant 2021; 35:e14385. [PMID: 34132442 DOI: 10.1111/ctr.14385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/18/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Kidney transplant (KT) directors are general surgeons or urologists. All KT centers must meet established performance standards. However, it has not been established if general surgery and urology led programs have disparate outcomes. METHODS Transplant outcomes and donor-recipient characteristics by director training were investigated. Organ Procurement and Transplantation Network (OPTN) directory, program websites were analyzed for surgical director demographics. Scientific Registry of Transplant Recipients (SRTR) 1-year kidney survival and deceased donor (DD) wait-time rankings were evaluated. A retrospective analysis of 142 157 KT recipients from 2010 to 2019 was performed using the United Network for Organ Sharing (UNOS) database. RESULTS One hunderd and seventy three (90.6%) KT programs were led by general surgeons. There were no significant differences in gender, ethnicity, region, credentials, or fellowship completion. Recipients undergoing KT with urology led programs were older (P = .002) and had longer wait-times (P < .001). These centers used higher KDPI (.47 vs. .45, P < .001) and higher HLA mismatch (3.92 vs. 3.89, P = .02) kidneys. Urology led centers utilized living donors less frequently (32.1% vs. 35.8%, P < .001) and had longer CIT (15.44 vs. 12.21, P < .001). Both had similar SRTR ranking of 1-year survival and DD wait-time. CONCLUSION Most directors were general surgeon. Patient outcomes did not differ by transplant director training. Urologists represent a viable option for KT leadership and recruitment should be encouraged.
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Affiliation(s)
- A Chiodo Ortiz
- Department of Surgery, Albany Medical Center, Albany, New York, USA
| | - Ankur P Choubey
- Department of Surgery, Rutgers Robert Wood Johnson University Hospital, New Brunswick, New Jersey, USA
| | - K Pai
- Department of Surgery, University of Toledo Medical Center, Toledo, Ohio, USA
| | - S Khan
- Department of Surgery, University of Toledo Medical Center, Toledo, Ohio, USA
| | - A Mishra
- Department of Surgery, University of Toledo Medical Center, Toledo, Ohio, USA
| | - B Bullock
- Department of Surgery, University of Toledo Medical Center, Toledo, Ohio, USA
| | - S Sureddi
- Department of Surgery, University of Toledo Medical Center, Toledo, Ohio, USA
| | - R James
- Schar School of Policy and Government, George Mason University, Fairfax, Virginia, USA
| | - A B Siddique
- Schar School of Policy and Government, George Mason University, Fairfax, Virginia, USA
| | - N Koizumi
- Schar School of Policy and Government, George Mason University, Fairfax, Virginia, USA
| | - J Ortiz
- Department of Surgery, Albany Medical Center, Albany, New York, USA
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Qu S, Zhang X, Wu Y, Li H, Zhai J, Wu D. miR-361-3p Regulates Liver Tumor-initiating Cells Expansion and Chemo-resistance. J Cancer 2021; 12:1483-1492. [PMID: 33531993 PMCID: PMC7847642 DOI: 10.7150/jca.52395] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/15/2020] [Indexed: 12/12/2022] Open
Abstract
Increasing evidence shows that liver tumor-initiating cells (T-ICs) closely associated with the progression, metastasis, recurrence and chemo-resistance of hepatocellular carcinoma (HCC). However, the underlying mechanism for the propagation of liver T-ICs remains unclear. Here we show that miR-361-3p is upregulated in liver T-ICs. Knockdown of miR-361-3p impairs the self-renewal and tumorigenicity liver T-ICs. Conversely, forced miR-361-3p expression enhances the self-renewal and tumorigenicity liver T-ICs. Mechanistically, miR-361-3p directly targets SOX1 via binding its 3'-UTR in liver T-ICs. Moreover, miR-361-3p knockdown hepatoma cells are more sensitive to cisplatin or sorafenib treatment. Clinical cohort analysis demonstrates that miR-361-3p low HCC patients are benefited from TACE (transcatheter arterial chemoembolization) or sorafenib treatment. In conclusion, our findings revealed the crucial role of the miR-361-3p in liver T-IC expansion and TACE or sorafenib response, rendering miR-361-3p an optimal target for the prevention and intervention in HCC.
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Affiliation(s)
- Shuping Qu
- Department of Hepatic Surgery, Third Affiliated Hospital of Second Military Medical University, Shanghai, 200438, China
| | - Xiaobing Zhang
- Department of Hepatic Surgery, Third Affiliated Hospital of Second Military Medical University, Shanghai, 200438, China
| | - Yue Wu
- Department of Hepatic Surgery, Third Affiliated Hospital of Second Military Medical University, Shanghai, 200438, China
| | - HengYu Li
- Department of General surgery, First Affiliated Hospital of Second Military Medical University, Shanghai, 200433, China
| | - Jian Zhai
- Department of Hepatic Surgery, Third Affiliated Hospital of Second Military Medical University, Shanghai, 200438, China
| | - Dong Wu
- Department of Hepatic Surgery, Third Affiliated Hospital of Second Military Medical University, Shanghai, 200438, China
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Guo XM, Chen JL, Zeng BH, Lai JC, Lin CY, Lai MY. Ultrasound-mediated delivery of RGD-conjugated nanobubbles loaded with fingolimod and superparamagnetic iron oxide nanoparticles: targeting hepatocellular carcinoma and enhancing magnetic resonance imaging. RSC Adv 2020; 10:39348-39358. [PMID: 35518389 PMCID: PMC9057352 DOI: 10.1039/d0ra06415g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/11/2020] [Indexed: 12/24/2022] Open
Abstract
Nanobubbles (NBs) are considered to be a new generation of ultrasound-responsive nanocarriers that can effectively target tumors, accurately release multi-drugs at desired locations, as well as simultaneously perform diagnosis and treatment. In this study, we designed theranostic NBs (FTY720@SPION/PFP/RGD-NBs) composed of RGD-modified liposomes as the shell, and perflenapent (PFP), superparamagnetic iron oxide nanoparticles (SPION), and fingolimod (2-amino-2[2-(4-octylphenyl)ethyl]-1,3-propanediol, FTY720) encapsulated as the core. The prepared FTY720@SPION/PFP/RGD-NBs were black spheres with a diameter range of 160–220 nm, eligible for enhanced permeability and retention (EPR) effects. The calculated average drug loading efficiency (LE) and encapsulation efficiency (EE) of the FTY720@SPION/PFP/RGD-NBs were 9.18 ± 0.61% and 88.26 ± 2.31%, respectively. With the promotion of low-intensity focused ultrasound (LIFU), the amount and the rate of FTY720 released from the prepared NB complex were enhanced when compared to the samples without LIFU treatment. In vitro magnetic resonance imaging (MRI) trials showed that the prepared FTY720@SPION/PFP/RGD-NBs had a high relaxation rate and MRI T2-weighted imaging (T2WI) scanning sensitivity conditions. The cell viability studies demonstrated that both HepG2 and Huh7 cells co-cultured with FTY720@SPION/PFP/RGD-NB (100 μg mL−1) + LIFU treatment had the lowest survival rate compared with the other groups at 24 h and 48 h, showing that FTY720@SPION/PFP/RGD-NB had the strongest anti-tumor efficiency among the prepared NBs. The cytotoxicity study also demonstrated that the prepared NBs had low toxicity to normal fibroblast 3T3 cells. Cellular uptake studies further indicated that both LIFU treatment and RGD modification could effectively improve the tumor-targeted effects, thereby enhancing the antitumor efficacy. The qRT-PCR results indicated that LIFU-mediated FTY720@SPION/PFP/RGD-NB could significantly cause the activation of Caspase3, Caspase9 and p53 compared to the control group, inducing HepG2 apoptosis. These results together indicated that FTY720@SPION/PFP/RGD-NBs combined with LIFU may serve as a multifunctional drug delivery platform for hepatocellular carcinoma treatment and provide a new strategy for tumor visualization by MRI. Nanobubbles (NBs) are considered to be a new generation of ultrasound-responsive nanocarriers that can effectively target tumors, accurately release multi-drugs at desired locations, as well as simultaneously perform diagnosis and treatment.![]()
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Affiliation(s)
- Xin-Min Guo
- Department of Ultrasound
- Guangzhou Red Cross Hospital
- Medical College
- Jinan University
- Guangzhou
| | - Jia-Lin Chen
- Department of Ultrasound
- Guangzhou Red Cross Hospital
- Medical College
- Jinan University
- Guangzhou
| | - Bao-Hui Zeng
- Department of Ultrasound
- Guangzhou Red Cross Hospital
- Medical College
- Jinan University
- Guangzhou
| | - Ji-Chuang Lai
- Department of Ultrasound
- Guangzhou Red Cross Hospital
- Medical College
- Jinan University
- Guangzhou
| | - Cui-Yan Lin
- Department of Ultrasound
- Guangzhou Red Cross Hospital
- Medical College
- Jinan University
- Guangzhou
| | - Mei-Yan Lai
- Department of Ultrasound
- Guangzhou Red Cross Hospital
- Medical College
- Jinan University
- Guangzhou
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