151
|
Thomas OS, Weber W. Overcoming Physiological Barriers to Nanoparticle Delivery-Are We There Yet? Front Bioeng Biotechnol 2019; 7:415. [PMID: 31921819 PMCID: PMC6928054 DOI: 10.3389/fbioe.2019.00415] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/29/2019] [Indexed: 12/19/2022] Open
Abstract
The exploitation of nanosized materials for the delivery of therapeutic agents is already a clinical reality and still holds unrealized potential for the treatment of a variety of diseases. This review discusses physiological barriers a nanocarrier must overcome in order to reach its target, with an emphasis on cancer nanomedicine. Stages of delivery include residence in the blood stream, passive accumulation by virtue of the enhanced permeability and retention effect, diffusion within the tumor lesion, cellular uptake, and arrival at the site of action. We also briefly outline strategies for engineering nanoparticles to more efficiently overcome these challenges: Increasing circulation half-life by shielding with hydrophilic polymers, such as PEG, the limitations of PEG and potential alternatives, targeting and controlled activation approaches. Future developments in these areas will allow us to harness the full potential of nanomedicine.
Collapse
Affiliation(s)
- Oliver S. Thomas
- Faculty of Biology, University of Freiburg, Freiburg, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine, University of Freiburg, Freiburg, Germany
| | - Wilfried Weber
- Faculty of Biology, University of Freiburg, Freiburg, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine, University of Freiburg, Freiburg, Germany
| |
Collapse
|
152
|
Kobi M, Veillette G, Narurkar R, Sadowsky D, Paroder V, Shilagani C, Gilet A, Flusberg M. DUPLICATE: Imaging and Management of Pancreatic Cancer. Semin Ultrasound CT MR 2019. [DOI: 10.1053/j.sult.2019.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
153
|
Brachi G, Bussolino F, Ciardelli G, Mattu C. Nanomedicine for Imaging and Therapy of Pancreatic Adenocarcinoma. Front Bioeng Biotechnol 2019; 7:307. [PMID: 31824928 PMCID: PMC6880757 DOI: 10.3389/fbioe.2019.00307] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 10/17/2019] [Indexed: 12/20/2022] Open
Abstract
Pancreatic adenocarcinoma has the worst outcome among all cancer types, with a 5-year survival rate as low as 10%. The lethal nature of this cancer is a result of its silent onset, resistance to therapies, and rapid spreading. As a result, most patients remain asymptomatic and present at diagnosis with an already infiltrating and incurable disease. The tumor microenvironment, composed of a dense stroma and of disorganized blood vessels, coupled with the dysfunctional signal pathways in tumor cells, creates a set of physical and biological barriers that make this tumor extremely hard-to-treat with traditional chemotherapy. Nanomedicine has great potential in pancreatic adenocarcinoma, because of the ability of nano-formulated drugs to overcome biological barriers and to enhance drug accumulation at the target site. Moreover, monitoring of disease progression can be achieved by combining drug delivery with imaging probes, resulting in early detection of metastatic patterns. This review describes the latest development of theranostic formulations designed to concomitantly treat and image pancreatic cancer, with a specific focus on their interaction with physical and biological barriers.
Collapse
Affiliation(s)
| | - Federico Bussolino
- Department of Oncology, University of Torino, Turin, Italy
- Candiolo Cancer Institute -IRCCS-FPO, Candiolo, Italy
| | | | | |
Collapse
|
154
|
Tossey JC, Reardon J, VanDeusen JB, Noonan AM, Porter K, Arango MJ. Comparison of conventional versus liposomal irinotecan in combination with fluorouracil for advanced pancreatic cancer: a single-institution experience. Med Oncol 2019; 36:87. [PMID: 31494781 DOI: 10.1007/s12032-019-1309-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 08/27/2019] [Indexed: 12/15/2022]
Abstract
The majority of pancreatic cancers are diagnosed at an advanced stage, when surgical options are limited and treatment relies on systemic chemotherapy. In the NAPOLI-1 trial, liposomal irinotecan in combination with fluorouracil (nal-iri/5FU) was shown to improve overall survival when compared to fluorouracil alone for metastatic pancreatic cancer. Other retrospective studies have shown the combination of fluorouracil and conventional irinotecan (FOLFIRI) to be a viable option, though no randomized trials have compared nal-iri/5FU to FOLFIRI. The purpose of this single-center, retrospective, cohort study was to determine if nal-iri/5FU and FOLFIRI are similarly effective for the treatment of advanced pancreatic cancer. Due to the potential for treatment bias, inverse probability of treatment weighting was utilized to correct for baseline differences between the groups. The primary outcome of progression-free survival was similar at 4.1 months for nal-iri/5FU and 3.1 months for FOLFIRI. Overall survival and adverse effect frequency were also similar. Pegfilgrastim was used in 16% and 15% of patients, respectively, and nal-iri/5FU patients required significantly less atropine during treatment (36 vs. 70%). A cost analysis was conducted and concluded that the treatment with nal-iri/5FU was nearly 30 times more expensive than FOLFIRI treatment. Together, these data suggest a potential role for FOLFIRI for the treatment of advanced pancreatic cancer in the absence of clear benefits in effectiveness, toxicity, or cost for nal-iri/5FU.
Collapse
Affiliation(s)
- Justin C Tossey
- Department of Pharmacy, The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute, 460 West 10th Avenue, Columbus, OH, 43210, USA
| | - Joshua Reardon
- Department of Pharmacy, The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute, 460 West 10th Avenue, Columbus, OH, 43210, USA
| | - Jeffrey B VanDeusen
- Division of Medical Oncology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute, 460 West 10th Avenue, Columbus, OH, USA
| | - Anne M Noonan
- Division of Medical Oncology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute, 460 West 10th Avenue, Columbus, OH, USA
| | - Kyle Porter
- Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University, 1800 Cannon Drive, Columbus, OH, USA
| | - Matthew J Arango
- Department of Pharmacy, The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute, 460 West 10th Avenue, Columbus, OH, 43210, USA.
| |
Collapse
|
155
|
Fong CYK, Burke E, Cunningham D, Starling N. Up-to-Date Tailored Systemic Treatment in Pancreatic Ductal Adenocarcinoma. Gastroenterol Res Pract 2019; 2019:7135437. [PMID: 31582971 PMCID: PMC6748185 DOI: 10.1155/2019/7135437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/09/2019] [Indexed: 12/24/2022] Open
Abstract
Despite intensive research efforts, pancreatic ductal adenocarcinoma is still regarded as an aggressive and life-limiting malignancy. Combination chemotherapy regimens that underpin the current treatment approach in the advanced setting have led to incremental survival gains in recent years but have failed to confer patients with a median overall survival that exceeds 12 months from diagnosis. Research has since focussed on understanding the role and interplay between various components of the desmoplastic stroma and tumour microenvironment, in addition to developing targeted therapies based on molecular features to improve the prognosis associated with this malignancy. This review will summarise the available systemic treatment options and discuss potential methods to refine the resolution of patient selection to enhance responses to currently available therapies. Furthermore, it will explore newer approaches anticipated to come to the fore of future clinical practice, such as agents targeting the DNA damage response and tumour microenvironment as well as immunotherapy-based combinations.
Collapse
Affiliation(s)
| | - Emma Burke
- The Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, UK
| | - David Cunningham
- The Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, UK
| | - Naureen Starling
- The Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, UK
| |
Collapse
|
156
|
Ram Makena M, Gatla H, Verlekar D, Sukhavasi S, K Pandey M, C Pramanik K. Wnt/β-Catenin Signaling: The Culprit in Pancreatic Carcinogenesis and Therapeutic Resistance. Int J Mol Sci 2019; 20:E4242. [PMID: 31480221 PMCID: PMC6747343 DOI: 10.3390/ijms20174242] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 08/22/2019] [Accepted: 08/27/2019] [Indexed: 12/24/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is responsible for 7.3% of all cancer deaths. Even though there is a steady increase in patient survival for most cancers over the decades, the patient survival rate for pancreatic cancer remains low with current therapeutic strategies. The Wnt/β-catenin pathway controls the maintenance of somatic stem cells in many tissues and organs and is implicated in pancreatic carcinogenesis by regulating cell cycle progression, apoptosis, epithelial-mesenchymal transition (EMT), angiogenesis, stemness, tumor immune microenvironment, etc. Further, dysregulated Wnt has been shown to cause drug resistance in pancreatic cancer. Although different Wnt antagonists are effective in pancreatic patients, limitations remain that must be overcome to increase the survival benefits associated with this emerging therapy. In this review, we have summarized the role of Wnt signaling in pancreatic cancer and suggested future directions to enhance the survival of pancreatic cancer patients.
Collapse
Affiliation(s)
- Monish Ram Makena
- Department of Physiology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Himavanth Gatla
- Department of Pediatric Oncology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Dattesh Verlekar
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Sahithi Sukhavasi
- Center for Distance Learning, GITAM University, Visakhapatnam 530045, India
| | - Manoj K Pandey
- Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ 08103, USA
| | - Kartick C Pramanik
- Department of Basic Sciences, Kentucky College of Osteopathic Medicine, University of Pikeville, Pikeville, KY 41501, USA.
| |
Collapse
|
157
|
Wu H, Guo JC, Yang SH, Tien YW, Kuo SH. Postoperative Imaging and Tumor Marker Surveillance in Resected Pancreatic Cancer. J Clin Med 2019; 8:E1115. [PMID: 31357636 PMCID: PMC6722558 DOI: 10.3390/jcm8081115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 07/05/2019] [Accepted: 07/25/2019] [Indexed: 12/14/2022] Open
Abstract
Background: Pancreatic cancer is a catastrophic disease with high recurrence and death rates, even in early stages. Early detection and early treatment improve survival in many cancer types but have not yet been clearly documented to do so in pancreatic cancer. In this study, we assessed the benefit on survival resulting from different patterns of surveillance in daily practice after curative surgery of early pancreatic cancer. Methods: Patients with pancreatic ductal adenocarcinoma who had received curative surgery between January 2000 and December 2013 at our institute were retrospectively reviewed. Patients were classified into one of four groups, based on surveillance strategy: the symptom group, the imaging group, the marker group (carbohydrate antigen 19-9 and/or carcinoembryonic antigen), and the intense group (both imaging and tumor marker assessment). Overall survival (OS), relapse-free survival (RFS), and post-recurrence overall survival (PROS) were evaluated. Results: One hundred and eighty-one patients with documented recurrence or metastasis were included in our analysis. The median OS for patients in the symptom group, imaging group, marker group, and intense group were 21.4 months, 13.9 months, 20.5 months, and 16.5 months, respectively (p = 0.670). Surveillance with imaging, tumor markers, or both was not an independent risk factor for OS in univariate and multivariate analyses. There was no significant difference in median RFS (symptom group, 11.7 months; imaging group, 6.3 months; marker group, 9.3 months; intense group, 6.9 months; p = 0.259) or median PROS (symptom group, 6.9 months; imaging group, 7.5 months; marker group, 5.0 months; intense group, 7.8 months; p = 0.953) between the four groups. Multivariate analyses identified poor Eastern Cooperative Oncology Group Performance Status (ECOG PS) (≥1), primary tumor site (tail), and tumor grade (poor differentiation) were poor prognostic factors for OS. Conclusions: Surveillance with regular imaging, tumor marker, or both was not an independent risk factor for OS of pancreatic cancer patients who undergo curative tumor resection.
Collapse
Affiliation(s)
- Hsu Wu
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Oncology, National Taiwan University Hospital, Yun-Lin Branch, Yunlin, Taiwan
| | - Jhe-Cyuan Guo
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Cancer Research Center, National Taiwan University College of Medicine, Taipei, Taiwan
- National Taiwan University Cancer Center, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shih-Hung Yang
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Cancer Research Center, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Wen Tien
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Sung-Hsin Kuo
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan.
- Cancer Research Center, National Taiwan University College of Medicine, Taipei, Taiwan.
- National Taiwan University Cancer Center, National Taiwan University College of Medicine, Taipei, Taiwan.
- Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan.
| |
Collapse
|
158
|
Yang F, Jin C, Fu DL, Warshaw AL. Modified FOLFIRINOX for resected pancreatic cancer: Opportunities and challenges. World J Gastroenterol 2019; 25:2839-2845. [PMID: 31249443 PMCID: PMC6589737 DOI: 10.3748/wjg.v25.i23.2839] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/17/2019] [Accepted: 04/29/2019] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer is one of the leading causes of cancer death worldwide. Adjuvant chemotherapy has been developed based on the experiences made with palliative chemotherapy, and advocated to improve long-term survival of patients with this disease. However, the optimal chemotherapeutic regimen remains controversial. Recently, Conroy et al demonstrated the impressive benefits of modified FOLFIRINOX over gemcitabine alone in the multicenter Partenariat de Recherche en Oncologie Digestive 24 (PRODIGE-24) trial. The remarkable results mark a new milestone in treating resectable pancreatic cancer and have now changed the standard of care for this patient population. In this commentary, we discuss an issue of difference of tumor grade between the PRODIGE-24 trial and previous phase III trials. We also discuss potential biomarkers predicting therapeutic response to modified FOLFIRINOX. Finally, we summarize several ongoing clinical trials of replacing part of the FOLFIRINOX regimen with Xeloda/S-1/nanoliposomal irinotecan for pancreatic cancer.
Collapse
Affiliation(s)
- Feng Yang
- Department of Pancreatic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Chen Jin
- Department of Pancreatic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - De-Liang Fu
- Department of Pancreatic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Andrew L Warshaw
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, United States
| |
Collapse
|
159
|
Chiorean EG, Cheung WY, Giordano G, Kim G, Al-Batran SE. Real-world comparative effectiveness of nab-paclitaxel plus gemcitabine versus FOLFIRINOX in advanced pancreatic cancer: a systematic review. Ther Adv Med Oncol 2019; 11:1758835919850367. [PMID: 31205510 PMCID: PMC6535755 DOI: 10.1177/1758835919850367] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 04/09/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND No clinical trial has directly compared nab-paclitaxel/gemcitabine (nab-P/G) with FOLFIRINOX (fluorouracil/leucovorin/oxaliplatin/irinotecan) in metastatic or advanced pancreatic cancer (mPC or aPC). We conducted a systematic review of real-world studies comparing these regimens in the first-line setting. METHODS Embase and MEDLINE databases through 22 January 2019, and Gastrointestinal Cancers Symposium 2019 abstracts were searched for real-world, retrospective studies comparing first-line nab-P/G versus FOLFIRINOX in mPC or aPC that met specific parameters. Studies with radiotherapy were excluded. Study quality was assessed using the Newcastle-Ottawa Scale. RESULTS Of 818 records initially identified, 35 were duplicates and 749 did not meet the eligibility criteria, mostly because they were either not comparative (n = 356) or not first line (n = 245). The remaining 34 studies (21 mPC; 13 aPC) assessed >6915 patients who received nab-P/G or FOLFIRINOX. In the studies identified, the median overall survival (OS) reached 14.4 and 15.9 months with nab-P/G and FOLFIRINOX, respectively, and median progression-free survival reached 8.5 and 11.7 months, respectively. Safety data were reported in 14 studies (2205 patients), including 8 single-institutional studies. In most single-institutional studies that reported safety data, rates were higher with FOLFIRINOX versus nab-P/G for grade 3/4 neutropenia (five of six studies) and febrile neutropenia (all three studies), while rates of grade 3/4 peripheral neuropathy were higher with nab-P/G in four of seven studies. CONCLUSIONS Although FOLFIRINOX was associated with slightly longer median OS in more studies, the differences, when available, were not statistically significant. Therefore, a randomized, controlled trial is warranted. Toxicity profile differences represent key considerations for treatment decisions.
Collapse
Affiliation(s)
- Elena Gabriela Chiorean
- Fred Hutchinson Cancer Research Center,
University of Washington School of Medicine, 825 Eastlake Ave East, Seattle,
WA 98109, USA
| | | | - Guido Giordano
- IRCCS Casa Sollievo della Sofferenza, San
Giovanni Rotondo, Italy
| | - George Kim
- 21st Century Oncology, Jacksonville, FL,
USA
| | - Salah-Eddin Al-Batran
- Institute of Clinical Cancer Research,
Krankenhaus Nordwest, University Cancer Center, Frankfurt, Germany
| |
Collapse
|
160
|
Lagoa R, Silva J, Rodrigues JR, Bishayee A. Advances in phytochemical delivery systems for improved anticancer activity. Biotechnol Adv 2019; 38:107382. [PMID: 30978386 DOI: 10.1016/j.biotechadv.2019.04.004] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/23/2019] [Accepted: 04/06/2019] [Indexed: 12/15/2022]
Abstract
Natural compounds have significant anticancer pharmacological activities, but often suffer from low bioavailability and selectivity that limit therapeutic use. The present work critically analyzes the latest advances on drug delivery systems designed to enhance pharmacokinetics, targeting, cellular uptake and efficacy of anticancer phytoconstituents. Various phytochemicals, including flavonoids, resveratrol, celastrol, curcumin, berberine and camptothecins, carried by liposomes, nanoparticles, nanoemulsions and films showed promising results. Strategies to avoid drug metabolism, overcome physiological barriers and achieve higher concentration at cancer sites through skin, buccal, nasal, vaginal, pulmonary and colon targeted delivery are presented. Current limitations, challenges and future research directions are also discussed.
Collapse
Affiliation(s)
- Ricardo Lagoa
- School of Technology and Management, Polytechnic Institute of Leiria, Morro do Lena, Alto do Vieiro, 2411-901 Leiria, Portugal.
| | - João Silva
- School of Technology and Management, Polytechnic Institute of Leiria, Morro do Lena, Alto do Vieiro, 2411-901 Leiria, Portugal
| | - Joaquim Rui Rodrigues
- School of Technology and Management, Polytechnic Institute of Leiria, Morro do Lena, Alto do Vieiro, 2411-901 Leiria, Portugal
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, 5000 Lakewood Ranch Boulevard, Bradenton, FL 34211, USA.
| |
Collapse
|
161
|
Huang JR, Lee MH, Li WS, Wu HC. Liposomal Irinotecan for Treatment of Colorectal Cancer in a Preclinical Model. Cancers (Basel) 2019; 11:cancers11030281. [PMID: 30818855 PMCID: PMC6468623 DOI: 10.3390/cancers11030281] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is the most frequently diagnosed cancer and leading cause of cancer-related deaths worldwide. Because of the use of first-line CRC treatments, such as irinotecan (IRI), is hindered by dose-limiting side effects, improved drug delivery systems may have major clinical benefits for CRC treatment. In this study, we generate and characterize liposomal irinotecan (Lipo-IRI), a lipid-based nanoparticle, which shows excellent bioavailability and pharmacokinetics. Additionally, this formulation allows IRI to be maintained in active form and prolongs its half-life in circulation compared to IRI in solution. Compared with IRI statistically, the level of prostaglandin E2 (PGE2) in colonic tissue decreases, and Bifidobacterium spp. (beneficial intestinal microbiota) content increases in the Lipo-IRI-treated group. Moreover, no damage is observed by the hematoxylin and eosin staining of the normal tissue samples from the Lipo-IRI-treated group. In a xenograft mouse model, CRC tumors shrink markedly following Lipo-IRI treatment, and mice receiving a targeted combination of Lipo-IRI and liposomal doxorubicin (Lipo-Dox) extend their survival rate significantly. Overall, our results demonstrate that this formulation of Lipo-IRI shows a great potential for the treatment of colorectal cancer.
Collapse
Affiliation(s)
- Jiao-Ren Huang
- Ph.D. program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei 110, Taiwan.
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 115, Taiwan.
| | - Mei-Hsien Lee
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan.
| | - Wen-Shan Li
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan.
| | - Han-Chun Wu
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 115, Taiwan.
| |
Collapse
|