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Kasai M, Aihara T, Ikuta S, Nakajima T, Yamanaka N. Optimal Dosage of Indocyanine Green Fluorescence for Intraoperative Positive Staining in Laparoscopic Anatomical Liver Resection. Cureus 2023; 15:e46771. [PMID: 37954732 PMCID: PMC10632740 DOI: 10.7759/cureus.46771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2023] [Indexed: 11/14/2023] Open
Abstract
Introduction Fluorescence imaging technology, specifically utilizing indocyanine green (ICG), has emerged as a valuable tool in laparoscopic hepatectomy. In particular, laparoscopic anatomical liver resection (ALR) has benefited from the implementation of both positive and negative staining methods. A case series study reported a success rate of 53% for the positive staining method, citing potential issues regarding the proper ICG dosage needed for accurate fluorescence. Thus, it is crucial to conduct research to investigate the optimal dosage for ICG-positive staining in clinical practice to maximize the benefits of this technique. Materials and methods This retrospective study was conducted at a single center, Meiwa Hospital, and received approval from the hospital's ethics committee in accordance with the Helsinki Declaration. We reviewed the records of 264 patients who underwent open and laparoscopic hepatectomies for benign and malignant liver diseases from January 2019 to January 2023. Of these, 18 patients who underwent laparoscopic ALR with the ICG-positive staining method were evaluated. Fluorescence-emitting segmental borders were assessed immediately after puncture (first stage) and during parenchymal dissection (second stage). In the first stage, we evaluated the intensity of fluorescence emission, categorizing it as "strong" or "weak." The absence of visible fluorescence emission was considered a puncture failure. During the second stage of evaluation, from parenchymal resection to completion, we assessed the sustainability of fluorescence emission, defining it as "clear" or "contaminated." Both evaluations were subjectively judged by three surgeons at our center. The ICG quantity per targeted portal vein-bearing liver volume (mg/100 mL) was calculated for each patient, and the optimal dosage was determined using receiver operating characteristic (ROC) curve analysis. To ascertain the minimum value for adequate fluorescence emission intensity, ROC curve analysis was performed to discriminate between binary outcomes of "strong" or "weak" emission. Furthermore, to establish the maximum value for maintaining a clear fluorescence border, ROC curve analysis was conducted to discriminate between "clear" and "contaminated" during the second evaluation. Results Among the 18 successful puncture cases, the first-stage evaluation of fluorescence intensity revealed 14 punctures with "strong" intensity and four punctures with "weak" intensity. In the second-stage evaluation, 13 cases demonstrated "clear" borders, while five cases exhibited "contaminated" borders. ROC curve analysis was performed to determine the optimal ICG dose for adequate fluorescence intensity and preservation of clear borders during dissection. The analysis indicated that the appropriate ICG dose for achieving optimal intensity was 0.028 mg/100 mL (area under the curve [AUC]: 0.893), while the dose that prevented contamination of fluorescence in non-target areas until after dissection was 0.083 mg/100 mL (AUC: 0.723). Conclusions Laparoscopic anatomical resection using the positive staining method requires an optimal ICG dosage of 0.028-0.083 mg per 100 mL of liver volume. By employing this methodology, more precise and safer laparoscopic anatomical resections can be conducted, thereby enhancing the safety of the surgical procedure for patients.
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Affiliation(s)
- Meidai Kasai
- Department of Surgery, Meiwa Hospital, Hyogo, JPN
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2
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Marker S, Espinoza AF, King AP, Woodfield SE, Patel RH, Baidoo K, Nix MN, Ciaramicoli LM, Chang YT, Escorcia FE, Vasudevan SA, Schnermann MJ. Development of Iodinated Indocyanine Green Analogs as a Strategy for Targeted Therapy of Liver Cancer. ACS Med Chem Lett 2023; 14:1208-1215. [PMID: 37736195 PMCID: PMC10510512 DOI: 10.1021/acsmedchemlett.3c00213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 08/16/2023] [Indexed: 09/23/2023] Open
Abstract
Liver cancer is one of the leading causes of cancer-related deaths, with a significant increase in incidence worldwide. Novel therapies are needed to address this unmet clinical need. Indocyanine green (ICG) is a broadly used fluorescence-guided surgery (FGS) agent for liver tumor resection and has significant potential for conversion to a targeted therapy. Here, we report the design, synthesis, and investigation of a series of iodinated ICG analogs (I-ICG), which can be used to develop ICG-based targeted radiopharmaceutical therapy. We applied a CRISPR-based screen to identify the solute carrier transporter, OATP1B3, as a likely mechanism for ICG uptake. Our lead I-ICG compound specifically localizes to tumors in mice bearing liver cancer xenografts. This study introduces the chemistry needed to incorporate iodine onto the ICG scaffold and defines the impact of these modifications on key properties, including targeting liver cancer in vitro and in vivo.
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Affiliation(s)
- Sierra
C. Marker
- Chemical
Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702, United States
| | - Andres F. Espinoza
- Divisions
of Pediatric Surgery and Surgical Research, Michael E. DeBakey Department
of Surgery, Pediatric Surgical Oncology Laboratory, Texas Children’s
Surgical Oncology Program and Liver Tumor Program, Dan L. Duncan Cancer
Center, Baylor College of Medicine, Houston, Texas 77030, United States
| | - A. Paden King
- Molecular
Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20852, United States
| | - Sarah E. Woodfield
- Divisions
of Pediatric Surgery and Surgical Research, Michael E. DeBakey Department
of Surgery, Pediatric Surgical Oncology Laboratory, Texas Children’s
Surgical Oncology Program and Liver Tumor Program, Dan L. Duncan Cancer
Center, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Roma H. Patel
- Divisions
of Pediatric Surgery and Surgical Research, Michael E. DeBakey Department
of Surgery, Pediatric Surgical Oncology Laboratory, Texas Children’s
Surgical Oncology Program and Liver Tumor Program, Dan L. Duncan Cancer
Center, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Kwamena Baidoo
- Molecular
Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20852, United States
| | - Meredith N. Nix
- Chemical
Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702, United States
| | - Larissa Miasiro Ciaramicoli
- Department
of Chemistry, Pohang University of Science
and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Young-Tae Chang
- Department
of Chemistry, Pohang University of Science
and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Freddy E. Escorcia
- Molecular
Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20852, United States
| | - Sanjeev A. Vasudevan
- Divisions
of Pediatric Surgery and Surgical Research, Michael E. DeBakey Department
of Surgery, Pediatric Surgical Oncology Laboratory, Texas Children’s
Surgical Oncology Program and Liver Tumor Program, Dan L. Duncan Cancer
Center, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Martin J. Schnermann
- Chemical
Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702, United States
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3
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Wang Z, Yang X, Mei L, Jiang T, Sun T, Chen H, Wu Y, Ji Y. Indocyanine green for targeted imaging of the gall bladder and fluorescence navigation. JOURNAL OF BIOPHOTONICS 2022; 15:e202200142. [PMID: 35904773 DOI: 10.1002/jbio.202200142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/03/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Researchers nowadays have devoted extra attention to the different biomedical applications of indocyanine green (ICG), a US Food and Drug Administration-approved fluorescent compound in the fields such as drug delivery, medical imaging and disease diagnosis. In addition, hepatic function evaluation could be conducted by using ICG before surgical procedures and angiographic assessment of blood. Therefore, ICG will be expected to be excellent imaging and targeting agent in various preclinical and clinical model systems. However, whether ICG possesses the potential for the gall bladder's intraoperative imaging guidance needs to be further explored in vivo animal experiments. Herein, near-infrared fluorophores ICG can display the specific uptake by the gall bladder cells and tissues. The dynamic process of biodistribution and the clearance of ICG in vivo in mice are clearly shown in real-time live-body imaging. Furthermore, ICG was rapidly excreted into the bile and lately biodistributed to the stomach after treatment in mice. Meanwhile, the signal-to-background ratio of the gall bladder demonstrated a tremendously higher level compared to other organs (stomach, heart, liver, lung, pancreas, spleen, intestine and duodenum). In conclusion, fluorescence navigation using ICG fluorescence imaging will provide good visualization and detection of the target lesions (gall bladder) in clinics such as diagnostic medical imaging and intraoperative navigation.
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Affiliation(s)
- Zhidong Wang
- Department of General Surgery, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Xiao Yang
- Scientific Research Center and Precision Medical Institute, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Lin Mei
- Scientific Research Center and Precision Medical Institute, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Tiantian Jiang
- Department of General Surgery, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Tingkai Sun
- Department of General Surgery, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - HaiYan Chen
- Scientific Research Center and Precision Medical Institute, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - YouShen Wu
- School of Chemistry, Xi'an Jiaotong University, Xi'an, China
| | - Yuanyuan Ji
- Scientific Research Center and Precision Medical Institute, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
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Dual-Labelling Strategies for Nuclear and Fluorescence Molecular Imaging: Current Status and Future Perspectives. Pharmaceuticals (Basel) 2022; 15:ph15040432. [PMID: 35455430 PMCID: PMC9028399 DOI: 10.3390/ph15040432] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 12/13/2022] Open
Abstract
Molecular imaging offers the possibility to investigate biological and biochemical processes non-invasively and to obtain information on both anatomy and dysfunctions. Based on the data obtained, a fundamental understanding of various disease processes can be derived and treatment strategies can be planned. In this context, methods that combine several modalities in one probe are increasingly being used. Due to the comparably high sensitivity and provided complementary information, the combination of nuclear and optical probes has taken on a special significance. In this review article, dual-labelled systems for bimodal nuclear and optical imaging based on both modular ligands and nanomaterials are discussed. Particular attention is paid to radiometal-labelled molecules for single-photon emission computed tomography (SPECT) and positron emission tomography (PET) and metal complexes combined with fluorescent dyes for optical imaging. The clinical potential of such probes, especially for fluorescence-guided surgery, is assessed.
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Kasai M, Aihara T, Ikuta S, Nakajima T, Yamanaka N. A Percutaneous Portal Vein Puncture Under Artificial Ascites for Intraoperative Hepatic Segmentation Using Indocyanine Green Fluorescence: A Technical Report of Laparoscopic Anatomic Liver Resection. Surg Laparosc Endosc Percutan Tech 2021; 32:281-284. [PMID: 34882613 PMCID: PMC8969844 DOI: 10.1097/sle.0000000000001022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 09/15/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Laparoscopic liver resection have developed and is widely spread as standard procedure in these days, however, laparoscopic anatomic liver resection is still challenging, especially for posterosuperior lesions because of difficulties in segmental mapping and surgical techniques. Recently, the positive staining and negative staining method using fluorescent imaging techniques have been reported from experienced Asian centers, allowing to identify the tumor-bearing portal territory to be resected including the posterosuperior segment in laparoscopy. Those techniques are applicable in some cases; hence, it remains the room for improvement to establish as a feasible approach. Herein, we describe a percutaneous tumor-bearing portal vein puncture method under artificial ascites after the pneumoperitoneum for laparoscopic segmentectomy for segment 8. CASE PRESENTATION AND SURGICAL PROCEDURE A male patient in his 60s was admitted for an incidentally diagnosed hepatic mass in segment 8. Findings of the computed tomography scan showed a 2.5-cm-sized hepatocellular carcinoma lesion. Then, laparoscopic anatomic liver resection for segment 8 was planned. The segmentation of the segment 8 was performed through a percutaneous tumor-bearing portal vein puncture using indocyanine green injection with extracorporeal ultrasound guidance under artificial ascites. According to indocyanine green fluorescence navigation, anatomic liver resection was completed. Operative time was recorded as 375 minutes. The estimated intraoperative blood loss was 50 mL without the requirement for an intraoperative transfusion. The planned resections were successful with histologically negative surgical margins. The patient was discharged on the 19th postoperative day with normal liver function test results. There was no operation-related complication during hospitalization. CONCLUSION The intraoperative percutaneous portal vein puncture method under artificial ascites was useful for the identification of posterosuperior segment in laparoscopic anatomic segmentectomy.
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Affiliation(s)
- Meidai Kasai
- Department of Surgery, Meiwa Hospital, Hyogo, Japan
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6
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Lu CH, Hsiao JK. Indocyanine green: An old drug with novel applications. Tzu Chi Med J 2021; 33:317-322. [PMID: 34760625 PMCID: PMC8532591 DOI: 10.4103/tcmj.tcmj_216_20] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/05/2020] [Accepted: 10/31/2020] [Indexed: 12/18/2022] Open
Abstract
Indocyanine green (ICG), a US Food and Drug Administration-approved fluorescent compound, has been on the medical stage for more than 60 years. Current uses include hepatic function evaluation before surgical procedure and fundus evaluation. The large safety margin and near-infrared fluorescent optical advantage of the drug have proved useful in several clinical trials of intraoperative systems for tumor removal. Several nanoparticle-sized formulations for thermal ablation and photodynamic therapy have also been evaluated in animal experiments. Studies have attempted to manipulate ICG as a reporter fluorophore with initial success. In this article, we reviewed ICG's histological applications, chemical and physical properties, current clinical applications, ongoing clinical trials, and biomedical studies and prospects. We believe that ICG could be used with novel biotechnological techniques, such as fluorescent endoscopy and photoacoustic equipment, in a range of biomedical fields.
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Affiliation(s)
- Chia-Hung Lu
- Department of Medical Imaging, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan
| | - Jong-Kai Hsiao
- Department of Medical Imaging, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
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7
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Nishino H, Hollandsworth HM, Tashiro Y, Yamamoto J, Amirfakhri S, Filemoni F, Sugisawa N, Hoffman RM, Bouvet M. Ligation Method to Specifically Label a Liver Segment With Indocyanine Green in an Orthotopic Nude-Mouse Liver-Metastasis Model. In Vivo 2021; 34:3159-3162. [PMID: 33144419 DOI: 10.21873/invivo.12150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND/AIM The visualization of hepatic segments with indocyanine green (ICG) fluorescence can aid in anatomic liver resection. The present study aimed to develop a method to specifically label an hepatic segment in a nude mouse model with liver metastasis. MATERIALS AND METHODS An orthotopic mouse model was established by surgical orthotopic implantation (SOI) of a patient-derived colon-cancer liver metastasis in the left lobe of the liver. Three weeks after SOI, the left Glissonean pedicle was ligated and 10 μg ICG was administrated intravenously. Images were obtained with the Pearl Trilogy Imaging System. RESULTS All mice expressed an 800 nm signal from ICG on the right lobe of the liver. The left lobe of the liver, in which the tumor was located, showed no fluorescence and had ischemia due to successful ligation of the Glissonean pedicle. CONCLUSION The ligation of the Glissonean pedicle enables specific liver-segment labeling with ICG, which has potential clinical application for liver metastasectomy.
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Affiliation(s)
- Hiroto Nishino
- Department of Surgery, University of California San Diego, San Diego, CA, U.S.A.,AntiCancer, Inc., San Diego, CA, U.S.A.,Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hannah M Hollandsworth
- Department of Surgery, University of California San Diego, San Diego, CA, U.S.A.,Department of Surgery, VA San Diego Healthcare System, San Diego, CA, U.S.A
| | - Yoshihiko Tashiro
- Department of Surgery, University of California San Diego, San Diego, CA, U.S.A.,AntiCancer, Inc., San Diego, CA, U.S.A
| | - Jun Yamamoto
- Department of Surgery, University of California San Diego, San Diego, CA, U.S.A.,AntiCancer, Inc., San Diego, CA, U.S.A
| | - Siamak Amirfakhri
- Department of Surgery, University of California San Diego, San Diego, CA, U.S.A.,Department of Surgery, VA San Diego Healthcare System, San Diego, CA, U.S.A
| | - Filemoni Filemoni
- Department of Surgery, University of California San Diego, San Diego, CA, U.S.A.,Department of Surgery, VA San Diego Healthcare System, San Diego, CA, U.S.A
| | - Norihiko Sugisawa
- Department of Surgery, University of California San Diego, San Diego, CA, U.S.A.,AntiCancer, Inc., San Diego, CA, U.S.A
| | - Robert M Hoffman
- Department of Surgery, University of California San Diego, San Diego, CA, U.S.A.,AntiCancer, Inc., San Diego, CA, U.S.A.,Department of Surgery, VA San Diego Healthcare System, San Diego, CA, U.S.A
| | - Michael Bouvet
- Department of Surgery, University of California San Diego, San Diego, CA, U.S.A. .,Department of Surgery, VA San Diego Healthcare System, San Diego, CA, U.S.A
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8
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Tokunaga A, Miyamoto H, Fumoto S, Nishida K. Effect of Chronic Kidney Disease on Hepatic Clearance of Drugs in Rats. Biol Pharm Bull 2021; 43:1324-1330. [PMID: 32879206 DOI: 10.1248/bpb.b20-00124] [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] [Indexed: 11/22/2022]
Abstract
The pharmacokinetics of some hepatically cleared drugs have been reported to fluctuate in patients with renal impairment, but the definitive factors have not been clarified. We compared the pharmacokinetics of some drugs with different hepatic elimination processes in a chronic kidney disease (CKD) rat model, to optimize their administration during kidney injury. We chose indocyanine green (ICG), midazolam (MDZ), and acetaminophen (APAP) as reference drugs to determine changes in hepatic clearance pathways in presence of CKD. Drugs were intravenously administered via the jugular vein to the CKD model rats, previously established by adenine administration, and then, blood, bile, and urine samples were collected. The plasma concentration of ICG, which is eliminated into the bile without biotransformation, increased; and its total body clearance (CLtot) significantly decreased in the CKD group compared to the control group. Moreover, the plasma concentrations of MDZ and APAP, metabolized in the liver by CYP3A and Ugt1a6 enzymes, respectively, were higher in the CKD group than in the control group. The biliary clearances of APAP and its derivative APAP-glucuronide increased in the CKD group, whereas their renal clearances were markedly decreased with respect to those in the control group. Altogether, plasma concentrations of some hepatically eliminated drugs increased in the CKD rat model, but depending on their pharmacokinetic characteristics. This study provides useful information for optimizing the administration of some hepatically cleared drugs in CKD patients.
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Affiliation(s)
- Ayako Tokunaga
- Department of Pharmaceutics, Graduate School of Biomedical Sciences, Nagasaki University
| | - Hirotaka Miyamoto
- Department of Pharmaceutics, Graduate School of Biomedical Sciences, Nagasaki University
| | - Shintaro Fumoto
- Department of Pharmaceutics, Graduate School of Biomedical Sciences, Nagasaki University
| | - Koyo Nishida
- Department of Pharmaceutics, Graduate School of Biomedical Sciences, Nagasaki University
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A Novel Color-Coded Liver Metastasis Mouse Model to Distinguish Tumor and Adjacent Liver Segment. J Surg Res 2021; 264:327-333. [PMID: 33848831 DOI: 10.1016/j.jss.2021.02.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/01/2021] [Accepted: 02/27/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND It is difficult to distinguish between a tumor and its liver segment with traditional use of indocyanine green (ICG) alone. In the present study, a method was used to limit ICG to the liver segment adjacent to a tumor. A spectrally-distinct fluorescently-labeled tumor-specific antibody against human carcinoembryonic antigen-related cell-adhesion molecules was used to label the metastatic tumor in a patient-derived orthotopic xenograft mouse model to enable color-coded visualization and distinction of a colon-cancer liver metastases and its adjacent liver segment. MATERIALS AND METHODS Nude mice received surgical orthotopic implantation in the liver of colon-cancer liver metastases derived from two patients. An anti- carcinoembryonic antigen-related cell-adhesion molecules monoclonal antibody (mAb 6G5j) was conjugated to a near-infrared dye IR700DX (6G5j-IR700DX). After three weeks, mice received 6G5j-IR700DX via tail-vein injection 48 hours before surgery. ICG was intravenously injected after ligation of the left or left lateral Glissonean pedicle resulting in labeling of the segment with preserved blood-flow in the liver. Imaging was performed with the Pearl Trilogy and FLARE Imaging Systems. RESULTS The metastatic liver tumor had a clear fluorescence signal due to selective tumor targeting by 6G5j-IR700DX, which was imaged on the 700 nm channel. The adjacent liver segment, with preserved blood-flow in the liver, had a clear fluorescence ICG 800 nm signal, while the left or left lateral segment had no fluorescence signal. Overlay of the images showed clear color-coded differentiation between the tumor fluorescing at 700 nm and the adjacent liver segment fluorescing at 800 nm. CONCLUSIONS Color-coding of a liver tumor and uninvolved liver segment has the potential for improved liver resection.
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10
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Liang R, Wang Z, Kong X, Xiao X, Chen T, Yang H, Li Y, Zhao X. Differentiation of Human Parthenogenetic Embryonic Stem Cells into Functional Hepatocyte-like Cells. Organogenesis 2020; 16:137-148. [PMID: 33236954 DOI: 10.1080/15476278.2020.1848237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Stem cell and tissue engineering-based therapies for acute liver failure (ALF) have been limited by the lack of an optimal cell source. We aimed to determine the suitability of human parthenogenetic embryonic stem cells (hPESCs) for the development of strategies to treat ALF. We studied the ability of human parthenogenetic embryonic stem cells (hPESCs) with high whole-genome SNP homozygosity, which were obtained by natural activation during in vitro fertilization (IVF), to differentiate into functional hepatocyte-like cells in vitro by monolayer plane orientation. hPESCs were induced on a single-layer flat plate for 21 d in complete medium with the inducers activin A, FGF-4, BMP-2, HGF, OSM, DEX, and B27. Polygonal cell morphology and binuclear cells were observed after 21 d of induction by using an inverted microscope. RT-qPCR results showed that the levels of hepatocyte-specific genes such as AFP, ALB, HNF4a, CYP3A4, SLCO1B3, and ABCC2 significantly increased after induction. Immunocytochemical assay showed CK18 and Hepa expression in the induced cells. Indocyanine green (ICG) staining showed that the cells had the ability to absorb and metabolize dyes. Detection of marker proteins and urea in cell culture supernatants showed that the cells obtained after 21 d of induction had synthetic and secretory functions. The typical ultrastructure of liver cells was observed using TEM after 21 d of induction. The results indicate that naturally activated hPESCs can be induced to differentiate into hepatocellular cells by monolayer planar induction.
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Affiliation(s)
- Rui Liang
- Department of Pathology, The Second Hospital of Tianjin Medical University , Tianjin, China
| | - Zhiqiang Wang
- Department of General Surgery, The Second Hospital of Tianjin Medical University , Tianjin, China
| | - Xiangyang Kong
- School of Medicine, Kunming University of Science and Technology , Kunming, China
| | - Xiaoxiao Xiao
- Faculty of Chinese medicine, Macau University of Science and Technology , Macao, China
| | - Tianxing Chen
- Department of Pathology, The First People's Hospital of Yunnan Province , Kunming, China
| | - Hui Yang
- Department of Pathology, The First People's Hospital of Yunnan Province , Kunming, China
| | - Ying Li
- Department of Pathology, The First People's Hospital of Yunnan Province , Kunming, China
| | - Xingqi Zhao
- College of Life Sciences, Nanjing Normal University , Nanjing, China
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11
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Pasqua M, Pereira U, de Lartigue C, Nicolas J, Vigneron P, Dermigny Q, Legallais C. Preclinical characterization of alginate-poly-L-lysine encapsulated HepaRG for extracorporeal liver supply. Biotechnol Bioeng 2020; 118:453-464. [PMID: 32997339 DOI: 10.1002/bit.27583] [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: 05/23/2020] [Revised: 09/15/2020] [Accepted: 09/26/2020] [Indexed: 12/26/2022]
Abstract
We recently demonstrated that HepaRG cells encapsulated into 1.5% alginate beads are capable of self-assembling into spheroids. They adequately differentiate into hepatocyte-like cells, with hepatic features observed at Day 14 post-encapsulation required for external bioartificial liver applications. Preliminary investigations performed within a bioreactor under shear stress conditions and using a culture medium mimicking acute liver failure (ALF) highlighted the need to reinforce beads with a polymer coating. We demonstrated in a first step that a poly-l-lysine coating improved the mechanical stability, without altering the metabolic activities necessary for bioartificial liver applications (such as ammonia and lactate elimination). In a second step, we tested the optimized biomass in a newly designed perfused dynamic bioreactor, in the presence of the medium model for pathological plasma for 6 h. Performances of the biomass were enhanced as compared to the steady configuration, demonstrating its efficacy in decreasing the typical toxins of ALF. This type of bioreactor is easy to scale up as it relies on the number of micro-encapsulated cells, and could provide an adequate hepatic biomass for liver supply. Its design allows it to be integrated into a hybrid artificial/bioartificial liver setup for further clinical studies regarding its impact on ALF animal models.
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Affiliation(s)
- Mattia Pasqua
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Ulysse Pereira
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Claire de Lartigue
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Jonathan Nicolas
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Pascale Vigneron
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Quentin Dermigny
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France
| | - Cécile Legallais
- Université de technologie de Compiègne, CNRS, Laboratoire de Biomécanique et Bioingénierie, Centre de recherche de Royallieu, Compiègne, France.,DHU Hépatinov, Villejuif, France
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12
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Nishino H, Seo S, Hatano E, Nitta T, Morino K, Toda R, Fukumitsu K, Ishii T, Taura K, Uemoto S. What is a precise anatomic resection of the liver? Proposal of a new evaluation method in the era of fluorescence navigation surgery. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2020; 28:479-488. [PMID: 32896953 DOI: 10.1002/jhbp.824] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/24/2020] [Accepted: 08/21/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND/PURPOSE Indocyanine green (ICG) fluorescence navigation has been adapted for anatomic liver resection (AR) but an objective method for evaluation of its validity is required. This pilot study aimed to propose a new method to evaluate the accuracy of parenchymal division along the plane between hepatic segments and estimate the real-time navigation efficacy for AR by the Medical Imaging Projection System (MIPS), which continuously demonstrates the transection plane using projection mapping with ICG fluorescence. METHODS Ten patients who underwent open AR using liver segmentation with ICG fluorescence technique between August 2016 and July 2019 were included: six patients under MIPS guidance (MIPS group), while four using only conventional ICG fluorescence technique before parenchymal resection (non-MIPS group). Densitometry of the captured fluorescence image was performed to evaluate the fluorescence area ratio of each transection plane. The accurate fluorescence area ratio was calculated by subtracting the fluorescence area rate on the resected side from that on the remnant side. RESULTS The accurate fluorescence area ratio of the MIPS group and the non-MIPS group was 23.0 ± 12.6% and 5.6 ± 9.5%, respectively (P = .038). CONCLUSIONS Based on the results of our new method, real-time navigation using the MIPS may facilitate performing AR along the plane between hepatic segments.
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Affiliation(s)
- Hiroto Nishino
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Satoru Seo
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Etsuro Hatano
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Takashi Nitta
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Surgery, Kobe City Medical Center West Hospital, Kobe, Japan
| | - Koshiro Morino
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Rei Toda
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ken Fukumitsu
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takamichi Ishii
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kojiro Taura
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shinji Uemoto
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Pasqua M, Pereira U, Messina A, de Lartigue C, Vigneron P, Dubart-Kupperschmitt A, Legallais C. HepaRG Self-Assembled Spheroids in Alginate Beads Meet the Clinical Needs for Bioartificial Liver. Tissue Eng Part A 2020; 26:613-622. [PMID: 31914890 DOI: 10.1089/ten.tea.2019.0262] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
In liver tissue engineering, cell culture in spheroids is now well recognized to promote the maintenance of hepatic functions. However, the process leading to spheroids formation is time consuming, costly, and not easy to scale-up for further use in human bioartificial liver (BAL) applications. In this study, we encapsulated HepaRG cells (precursors of hepatocyte-like cells) in 1.5% alginate beads without preforming spheroids. Starting from a given hepatic biomass, we analyzed cell differentiation and metabolic performance for further use in a fluidized-bed BAL. We observed that cells self-rearranged as aggregates within the beads and adequately differentiated over time, in the absence of any differentiating factors classically used. On day 14 postencapsulation, cells displayed a wide range of hepatic features necessary for the treatment of a patient in acute liver failure. These activities include albumin synthesis, ammonia and lactate detoxification, and the efficacy of the enzymes involved in the xenobiotic metabolism (such as CYP1A1/2). Impact statement It has been recognized that culturing cells in spheroids (SPHs) is advantageous as they better reproduce the three-dimensional physiological microenvironment. This approach can be exploited in bioartificial liver applications, where obtaining a functional hepatic biomass is the major challenge. Our study describes an original method for culturing hepatic cells in alginate beads that makes possible the autonomous formation of SPHs after 3 days of culture. In turn, the cells differentiate adequately and display a wide range of hepatic features. They are also capable of treating a pathological plasma model. Finally, this setup can easily be scaled-up to treat acute liver failure.
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Affiliation(s)
- Mattia Pasqua
- UMR CNRS 7338 Biomechanics & Bioengineering, Université de Technologie de Compiègne, Alliance Sorbonne Université, Compiègne, France
| | - Ulysse Pereira
- UMR CNRS 7338 Biomechanics & Bioengineering, Université de Technologie de Compiègne, Alliance Sorbonne Université, Compiègne, France
| | - Antonietta Messina
- DHU Hépatinov, Villejuif, France.,UMR_S1193 Inserm/Paris-Saclay University, Villejuif, France
| | - Claire de Lartigue
- UMR CNRS 7338 Biomechanics & Bioengineering, Université de Technologie de Compiègne, Alliance Sorbonne Université, Compiègne, France
| | - Pascale Vigneron
- UMR CNRS 7338 Biomechanics & Bioengineering, Université de Technologie de Compiègne, Alliance Sorbonne Université, Compiègne, France
| | | | - Cecile Legallais
- UMR CNRS 7338 Biomechanics & Bioengineering, Université de Technologie de Compiègne, Alliance Sorbonne Université, Compiègne, France.,DHU Hépatinov, Villejuif, France
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14
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Nyström NN, Yip LCM, Carson JJL, Scholl TJ, Ronald JA. Development of a Human Photoacoustic Imaging Reporter Gene Using the Clinical Dye Indocyanine Green. Radiol Imaging Cancer 2019; 1:e190035. [PMID: 33778683 DOI: 10.1148/rycan.2019190035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 09/17/2019] [Accepted: 10/08/2019] [Indexed: 12/12/2022]
Abstract
Purpose To develop a photoacoustic imaging (PAI) reporter gene that has high translational potential. Previous research has shown that human organic anion-transporting polypeptide 1b3 (OATP1B3) promotes the uptake of the near-infrared fluorescent dye indocyanine green (ICG). In this study, the authors have established OATP1B3 and ICG as a reporter gene-probe pair for in vivo PAI. Materials and Methods Human breast cancer cells were engineered to express OATP1B3. Control cells (not expressing OATP1B3) or OATP1B3-expressing cells were incubated with or without ICG, placed in a breast-mimicking phantom, and imaged with PAI. Control (n = 6) or OATP1B3-expressing (n = 5) cells were then implanted orthotopically into female mice. Full-spectrum PAI was performed before and 24 hours after ICG administration. One-way analysis of variance was performed, followed by Tukey posthoc multiple comparisons, to assess statistical significance. Results OATP1B3-expressing cells incubated with ICG exhibited a 2.7-fold increase in contrast-to-noise ratio relative to all other controls in vitro (P < .05). In mice, PAI signals after ICG administration were increased 2.3-fold in OATP1B3 tumors relative to those in controls (P < .05). Conclusion OATP1B3 operates as an in vivo PAI reporter gene based on its ability to promote the cellular uptake of ICG. Benefits include the human derivation of OATP1B3, combined with the use of wavelengths in the near-infrared region, high extinction coefficient, low quantum yield, and clinical approval of ICG. The authors posit that this system will be useful for localized monitoring of emerging gene- and cell-based therapies in clinical applications.© RSNA, 2019Keywords: Animal Studies, Molecular Imaging, Molecular Imaging-Clinical Translation, Molecular Imaging-Reporter Gene Imaging, Optical ImagingSupplemental material is available for this article.
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Affiliation(s)
- Nivin N Nyström
- Department of Medical Biophysics, University of Western Ontario, 1151 Richmond St N, Room 2241A, London, ON, Canada N6A 3K7 (N.N.N., L.C.M.Y., J.J.L.C., T.J.S., J.A.R.); Imaging Research Laboratories, Robarts Research Institute, London, Canada (N.N.N., T.J.S., J.A.R.); Lawson Health Research Institute, London, Canada (L.C.M.Y., J.J.L.C., J.A.R.); and Ontario Institute for Cancer Research, Toronto, Canada (T.J.S.)
| | - Lawrence C M Yip
- Department of Medical Biophysics, University of Western Ontario, 1151 Richmond St N, Room 2241A, London, ON, Canada N6A 3K7 (N.N.N., L.C.M.Y., J.J.L.C., T.J.S., J.A.R.); Imaging Research Laboratories, Robarts Research Institute, London, Canada (N.N.N., T.J.S., J.A.R.); Lawson Health Research Institute, London, Canada (L.C.M.Y., J.J.L.C., J.A.R.); and Ontario Institute for Cancer Research, Toronto, Canada (T.J.S.)
| | - Jeffrey J L Carson
- Department of Medical Biophysics, University of Western Ontario, 1151 Richmond St N, Room 2241A, London, ON, Canada N6A 3K7 (N.N.N., L.C.M.Y., J.J.L.C., T.J.S., J.A.R.); Imaging Research Laboratories, Robarts Research Institute, London, Canada (N.N.N., T.J.S., J.A.R.); Lawson Health Research Institute, London, Canada (L.C.M.Y., J.J.L.C., J.A.R.); and Ontario Institute for Cancer Research, Toronto, Canada (T.J.S.)
| | - Timothy J Scholl
- Department of Medical Biophysics, University of Western Ontario, 1151 Richmond St N, Room 2241A, London, ON, Canada N6A 3K7 (N.N.N., L.C.M.Y., J.J.L.C., T.J.S., J.A.R.); Imaging Research Laboratories, Robarts Research Institute, London, Canada (N.N.N., T.J.S., J.A.R.); Lawson Health Research Institute, London, Canada (L.C.M.Y., J.J.L.C., J.A.R.); and Ontario Institute for Cancer Research, Toronto, Canada (T.J.S.)
| | - John A Ronald
- Department of Medical Biophysics, University of Western Ontario, 1151 Richmond St N, Room 2241A, London, ON, Canada N6A 3K7 (N.N.N., L.C.M.Y., J.J.L.C., T.J.S., J.A.R.); Imaging Research Laboratories, Robarts Research Institute, London, Canada (N.N.N., T.J.S., J.A.R.); Lawson Health Research Institute, London, Canada (L.C.M.Y., J.J.L.C., J.A.R.); and Ontario Institute for Cancer Research, Toronto, Canada (T.J.S.)
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Luciano MP, Namgoong JM, Nani RR, Nam SH, Lee C, Shin IH, Schnermann MJ, Cha J. A Biliary Tract-Specific Near-Infrared Fluorescent Dye for Image-Guided Hepatobiliary Surgery. Mol Pharm 2019; 16:3253-3260. [PMID: 31244218 DOI: 10.1021/acs.molpharmaceut.9b00453] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Despite advances, visual inspection, palpation, and intraoperative ultrasound remain the most utilized tools during surgery today. A particularly challenging issue is the identification of the biliary system due to its complex architecture partially embedded within the liver. Fluorescence guided surgical interventions, particularly using near-infrared (NIR) wavelengths, are an emerging approach for the real-time assessment of the hepatobiliary system. However, existing fluorophores, such as the FDA-approved indocyanine green (ICG), have significant limitations for rapid and selective visualization of bile duct anatomy. Here we report a novel NIR fluorophore, BL (Bile Label)-760, which is exclusively metabolized by the liver providing high signal in the biliary system shortly after intravenous administration. This molecule was identified by first screening a small set of known heptamethine cyanines including clinically utilized agents. After finding that none of these were well-suited, we then designed and tested a small series of novel dyes within a prescribed polarity range. We validated the molecule that emerged from these efforts, BL-760, through animal studies using both rodent and swine models employing a clinically applicable imaging system. In contrast to ICG, BL-760 fluorescence revealed a high target-to-background ratio (TBR) of the cystic duct relative to liver parenchyma 5 min after intravenous injection. During hepatic resection surgery, intrahepatic ducts were clearly highlighted, and bile leakage was easily detected. In conclusion, BL-760 has highly promising properties for intraoperative navigation during hepatobiliary surgery.
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Affiliation(s)
- Michael P Luciano
- Chemical Biology Laboratory, Center for Cancer Research , National Cancer Institute , 376 Boyles Street , Frederick , Maryland 21702 , United States
| | - Jung-Man Namgoong
- Sheikh Zayed Institute for Pediatric Surgical Innovation , Children's National Health System , 111 Michigan Avenue Northwest , Washington , D.C. 20010 , United States.,Department of Surgery , University of Ulsan College of Medicine , Asan Medical Center, 88 Olympic-ro, 43-gil , Songpa-gu, Seoul 138-736 , South Korea
| | - Roger R Nani
- Chemical Biology Laboratory, Center for Cancer Research , National Cancer Institute , 376 Boyles Street , Frederick , Maryland 21702 , United States
| | - So-Hyun Nam
- Sheikh Zayed Institute for Pediatric Surgical Innovation , Children's National Health System , 111 Michigan Avenue Northwest , Washington , D.C. 20010 , United States.,Department of Surgery , Dong-A University College of Medicine , 26 Daesingongwon-Ro , Seo-Gu, Busan 49201 , South Korea
| | - Choonghee Lee
- InTheSmart Co , Center for Medical Innovation Bld , 71 Daehak-ro , Jongro-gu, Seoul , South Korea
| | - Il Hyung Shin
- InTheSmart Co , Center for Medical Innovation Bld , 71 Daehak-ro , Jongro-gu, Seoul , South Korea
| | - Martin J Schnermann
- Chemical Biology Laboratory, Center for Cancer Research , National Cancer Institute , 376 Boyles Street , Frederick , Maryland 21702 , United States
| | - Jaepyeong Cha
- Chemical Biology Laboratory, Center for Cancer Research , National Cancer Institute , 376 Boyles Street , Frederick , Maryland 21702 , United States.,Department of Pediatrics , George Washington University School of Medicine and Health Sciences , 2300 Eye Street Northwest , Washington , D.C. 20052 , United States
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Bonnaventure P, Cusin F, Pastor CM. Hepatocyte Concentrations of Imaging Compounds Associated with Transporter Inhibition: Evidence in Perfused Rat Livers. Drug Metab Dispos 2019; 47:412-418. [PMID: 30674615 DOI: 10.1124/dmd.118.084624] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 01/18/2019] [Indexed: 12/15/2022] Open
Abstract
In the liver, several approaches are used to investigate and predict the complex issue of drug-induced transporter inhibition. These approaches include in vitro assays and pharmacokinetic models that predict how inhibitors modify the systemic and liver concentrations of the victim drugs. Imaging is another approach that shows how inhibitors might alter liver concentrations stronger than systemic concentrations. In perfused rat livers associated with a gamma counter that measures liver concentrations continuously, we previously showed how fluxes across transporters generate the hepatocyte concentrations of two clinical imaging compounds, one with a low extraction ratio [gadobenate dimeglumine (BOPTA)] and one with a high extraction ratio [mebrofenin (MEB)]. BOPTA and MEB are transported by rat organic anion transporting polypeptide and multiple resistance-associated protein 2, which are both inhibited by rifampicin. The aim of the study is to measure how rifampicin modifies the hepatocyte concentrations and membrane clearances of BOPTA and MEB and to determine whether these compounds might be used to investigate transporter-mediated drug-drug interactions in clinical studies. We show that rifampicin coperfusion greatly decreases BOPTA hepatocyte concentrations, but increases those of MEB. Rifampicin strongly decreases BOPTA hepatic clearance. In contrast, rifampicin decreases moderately MEB hepatic clearance and blocks the biliary intrinsic clearance, increasing MEB hepatocyte concentrations. In conclusion, low concentrations prevent the quantification of BOPTA biliary intrinsic clearance, while MEB is a promising imaging probe substrate to evidence transporter-mediated drug-drug interactions when inhibitors act on influx and efflux transporters.
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Affiliation(s)
- Pierre Bonnaventure
- Department of Radiology, Hôpitaux Universitaires de Genève, Geneva, Switzerland (P.B., F.C., C.M.P.); and Laboratory of Imaging Biomarkers, Centre of Research on Inflammation, Unité Mixte de Recherche 1149, Institut National de la santé et de la Recherche Médicale and University Paris Diderot, Paris, France (C.M.P.)
| | - Fabien Cusin
- Department of Radiology, Hôpitaux Universitaires de Genève, Geneva, Switzerland (P.B., F.C., C.M.P.); and Laboratory of Imaging Biomarkers, Centre of Research on Inflammation, Unité Mixte de Recherche 1149, Institut National de la santé et de la Recherche Médicale and University Paris Diderot, Paris, France (C.M.P.)
| | - Catherine M Pastor
- Department of Radiology, Hôpitaux Universitaires de Genève, Geneva, Switzerland (P.B., F.C., C.M.P.); and Laboratory of Imaging Biomarkers, Centre of Research on Inflammation, Unité Mixte de Recherche 1149, Institut National de la santé et de la Recherche Médicale and University Paris Diderot, Paris, France (C.M.P.)
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Lee H, Chae S, Kim JY, Han W, Kim J, Choi Y, Cho DW. Cell-printed 3D liver-on-a-chip possessing a liver microenvironment and biliary system. Biofabrication 2019; 11:025001. [PMID: 30566930 DOI: 10.1088/1758-5090/aaf9fa] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
To overcome the drawbacks of in vitro liver testing during drug development, numerous liver-on-a-chip models have been developed. However, current liver-on-a-chip technologies are labor-intensive, lack extracellular matrix (ECM) essential for liver cells, and lack a biliary system essential for excreting bile acids, which contribute to intestinal digestion but are known to be toxic to hepatocytes. Therefore, fabrication methods for development of liver-on-a-chip models that overcome the above limitations are required. Cell-printing technology enables construction of complex 3D structures with multiple cell types and biomaterials. We used cell-printing to develop a 3D liver-on-a-chip with multiple cell types for co-culture of liver cells, liver decellularized ECM bioink for a 3D microenvironment, and vascular/biliary fluidic channels for creating vascular and biliary systems. A chip with a biliary fluidic channel induced better biliary system creation and liver-specific gene expression and functions compared to a chip without a biliary system. Further, the 3D liver-on-a-chip showed better functionalities than 2D or 3D cultures. The chip was evaluated using acetaminophen and it showed an effective drug response. In summary, our results demonstrate that the 3D liver-on-a-chip we developed is promising in vitro liver test platform for drug discovery.
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Affiliation(s)
- Hyungseok Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Nam-gu, Pohang, Gyungbuk 790-784, Republic of Korea
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Thakare V, Tran VL, Natuzzi M, Thomas E, Moreau M, Romieu A, Collin B, Courteau A, Vrigneaud JM, Louis C, Roux S, Boschetti F, Tillement O, Lux F, Denat F. Functionalization of theranostic AGuIX® nanoparticles for PET/MRI/optical imaging. RSC Adv 2019; 9:24811-24815. [PMID: 35528689 PMCID: PMC9073358 DOI: 10.1039/c9ra00365g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 08/01/2019] [Indexed: 12/16/2022] Open
Abstract
A novel trifunctional imaging probe containing a chelator of radiometal for PET, a NIR heptamethine cyanine dye, and a bioconjugatable handle, has been grafted onto AGuIX® nanoparticles via a Michael addition reaction. The resulting functionalized nanoparticles have been fully characterized, radiolabelled with 64Cu, and evaluated in a mice TSA tumor model using multimodal (PET/MRI/optical) imaging. The controlled dual functionalization of AGuIX® nanoparticles afforded trimodal imaging (PET/MRI/fluorescence) theranostic agents.![]()
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Isolated Perfused Rat Livers to Quantify the Pharmacokinetics and Concentrations of Gd-BOPTA. CONTRAST MEDIA & MOLECULAR IMAGING 2018; 2018:3839108. [PMID: 30116162 PMCID: PMC6079620 DOI: 10.1155/2018/3839108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/17/2018] [Indexed: 12/14/2022]
Abstract
With recent advances in liver imaging, the estimation of liver concentrations is now possible following the injection of hepatobiliary contrast agents and radiotracers. However, how these images are generated remains partially unknown. Most experiments that would be helpful to increase this understanding cannot be performed in vivo. For these reasons, we investigated the liver distribution of the magnetic resonance (MR) contrast agent gadobenate dimeglumine (Gd-BOPTA, MultiHance®, Bracco Imaging) in isolated perfused rat livers (IPRLs). In IPRL, we developed a new set up that quantifies simultaneously the Gd-BOPTA compartment concentrations and the transfer rates between these compartments. Concentrations were measured either by MR signal intensity or by count rates when the contrast agent was labelled by [153Gd]. With this experimental model, we show how the Gd-BOPTA hepatocyte concentrations are modified by temperature and liver flow rates. We define new pharmacokinetic parameters to quantify the canalicular transport of Gd-BOPTA. Finally, we present how transfer rates generate Gd-BOPTA concentrations in rat liver compartments. These findings better explain how liver imaging with hepatobiliary radiotracers and contrast agents is generated and improve the image interpretation by clinicians.
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Hepatobiliary MRI: Signal intensity based assessment of liver function correlated to 13C-Methacetin breath test. Sci Rep 2018; 8:9078. [PMID: 29899400 PMCID: PMC5998051 DOI: 10.1038/s41598-018-27401-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/01/2018] [Indexed: 12/11/2022] Open
Abstract
Gadoxetic acid (Gd-EOB-DTPA) is a paramagnetic MRI contrast agent with raising popularity and has been used for evaluation of imaging-based liver function in recent years. In order to verify whether liver function as determined by real-time breath analysis using the intravenous administration of 13C-methacetin can be estimated quantitatively from Gd-EOB-DTPA-enhanced MRI using signal intensity (SI) values. 110 patients underwent Gd-EOB-DTPA-enhanced 3-T MRI and, for the evaluation of liver function, a 13C-methacetin breath test (13C-MBT). SI values from before (SIpre) and 20 min after (SIpost) contrast media injection were acquired by T1-weighted volume-interpolated breath-hold examination (VIBE) sequences with fat suppression. The relative enhancement (RE) between the plain and contrast-enhanced SI values was calculated and evaluated in a correlation analysis of 13C-MBT values to SIpost and RE to obtain a SI-based estimation of 13C-MBT values. The simple regression model showed a log-linear correlation of 13C-MBT values with SIpost and RE (p < 0.001). Stratified by 3 different categories of 13C-MBT readouts, there was a constant significant decrease in both SIpost (p ≤ 0.002) and RE (p ≤ 0.033) with increasing liver disease progression as assessed by the 13C-MBT. Liver function as determined using real-time 13C-methacetin breath analysis can be estimated quantitatively from Gd-EOB-DTPA-enhanced MRI using SI-based indices.
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