光动力疗法的抗癌功效肺癌靶向纳米粒子
Summary
Photodynamic therapy (PDT) is an alternative choice for lung cancer treatment. To increase the therapeutic effect of PDT, lung cancer-targeted nanoparticles combined with chemotherapy were developed. Both in vitro and in vivo anticancer efficacies of PDT with prepared nanoparticles were evaluated.
Abstract
Photodynamic therapy (PDT) is a non-invasive and non-surgical method representing an attractive alternative choice for lung cancer treatment. Photosensitizers selectively accumulate in tumor tissue and lead to tumor cell death in the presence of oxygen and the proper wavelength of light.
To increase the therapeutic effect of PDT, we developed both photosensitizer- and anticancer agent-loaded lung cancer-targeted nanoparticles. Both enhanced permeability and retention (EPR) effect-based passive targeting and hyaluronic-acid-CD44 interaction-based active targeting were applied. CD44 is a well-known hyaluronic acid receptor that is often introduced as a biomarker of non-small cell lung cancer.
In addition, a combination of PDT and chemotherapy is adopted in the present study. This combination concept may increase anticancer therapeutic effects and reduce adverse reactions.
We chose hypocrellin B (HB) as a novel photosensitizer in this study. It has been reported that HB causes higher anticancer efficacy of PDT compared to hematoporphyrin derivatives1. Paclitaxel was selected as the anticancer drug since it has proven to be a potential treatment for lung cancer2.
The antitumor efficacies of photosensitizer (HB) solution, photosensitizer encapsulated hyaluronic acid-ceramide nanoparticles (HB-NPs), and both photosensitizer- and anticancer agent (paclitaxel)-encapsulated hyaluronic acid-ceramide nanoparticles (HB-P-NPs) after PDT were compared both in vitro and in vivo. The in vitro phototoxicity in A549 (human lung adenocarcinoma) cells and the in vivo antitumor efficacy in A549 tumor-bearing mice were evaluated.
The HB-P-NP treatment group showed the most effective anticancer effect after PDT. In conclusion, the HB-P-NPs prepared in the present study represent a potential and novel photosensitizer delivery system in treating lung cancer with PDT.
Introduction
Photodynamic therapy (PDT) is composed of three major factors: photosensitizers, light, and oxygen. PDT is reported as a promising treatment for various cancers3. When the photosensitizers are administered into the cancer patient, they selectively accumulate in the tumor tissues. When the proper wavelength of light is applied, the highly reactive singlet oxygen and other free radicals lead to tumor cell damage4.
Lung cancer was introduced as one of the first applications for PDT in the early 1980s5. PDT provides several advantages in treating lung cancer. Since PDT is a non-invasive and non-surgical treatment, it is an attractive alternative choice for the patients in whom surgical resection is inappropriate.
There have been many challenges to enhance the cancer-targeting efficacy of the photosensitizers. Increasing photosensitizer accumulation in cancer sites and decreasing accumulation in normal tissues are the identical goals for the cancer-targeting studies. A variety of targeted drug delivery systems, such as polymers, liposomes, and nanoparticles are adopted as photosensitizer carriers6-8. In our previous studies, nanoparticles effectively increased the cancer-targeting abilities of the photosensitizers9,10. Nanoparticles are ideal cancer-targeting carriers since they possess both passive and active targeting abilities. The leaky tumor vessels provide opportunity for nano-sized carriers to accumulate easily in tumors, which is well-known as the enhanced permeability and retention (EPR) effect11,12. The interaction between the nanoparticles and the specific receptors on cancer cells enables active cancer targeting. In this study, we prepared hyaluronic acid-based nanoparticles to interact with CD44, the major hyaluronic acid receptor that is overexpressed on lung cancer cells13.
To maximize the anticancer efficacy, a combination of PDT and chemotherapy is adopted in the present study. This combination concept may permit an increased therapeutic effect. Furthermore, decreased doses of both the photosensitizer and the anticancer drug can diminish adverse effects. We selected hypocrellin B (HB) as a novel photosensitizer in the present study. HB is isolated from Chinese medicinal fungus Hypocrella bambuase. Shang et al. reported that HB-based PDT possesses a higher anticancer efficacy when compared to hematoporphyrin derivative-based PDT1. Paclitaxel was selected as the anticancer drug since it has proven to be a potential treatment for various cancers, including lung cancer2.
Herein, we compared the anticancer efficacies of photosensitizer (hypocrellin B, HB) solution, photosensitizer-encapsulated hyaluronic acid-ceramide nanoparticles (HB-NPs), and both photosensitizer- and anticancer agent (paclitaxel)-encapsulated hyaluronic acid-ceramide nanoparticles (HB-P-NPs) after PDT. The in vitro phototoxicity in A549 (human lung adenocarcinoma) cells and the in vivo antitumor efficacy in A549 tumor-bearing mice were evaluated.
Protocol
Representative Results
Discussion
在这项研究中最关键的步骤是选择合适的激光条件：波长，功率和照射时间。适合于特定的光敏剂的光的适当波长是必要的PDT。我们使用了一个630纳米的激光，是适当的竹红菌素B的输出功率是另一个重要的因素，这是基于许多试验性研究设定在400毫瓦/厘米2。输出功率超过400毫瓦/厘米2受损细胞或动物的皮肤表面由于照射本身，而低于400毫瓦/厘米2的输出功率太弱，以显示…
Declarações
The authors have nothing to disclose.
Acknowledgements
这项研究是由赠款没有支持。 14-2014-017从SNUBH研究基金。
该作者感谢J.帕特里克·巴伦，名誉教授，日本东京医科大学兼职教授，首尔国立大学盆唐医院这个手稿他的无偿编辑。
Materials
| oligo hyaluronic acid | Bioland Co., Ltd. | _ | |
| DS-Y30 (ceramide 3B; mainly N-oleoyl-phytosphingosine) | Doosan Biotech Co., Ltd. | _ | |
| adipic acid dihydrazide | Sigma Aldrich | A0638 | |
| N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide | Sigma Aldrich | 39391 | |
| 4-(chloromethyl)benzoyl chloride | Sigma Aldrich | 270784 | |
| Tween 80 | Tokyo Chemical Industry Co., Ltd. | T0546 | |
| syringe filter | Sartorius Stedim Biotech GmbH | 17762 | 15 mm, RC, PP, 0.45 µm |
| triethylamine | Sigma Aldrich | T0886 | |
| Mini-GeBAflex tubes | Gene Bio-Application Ltd. | D070-12-100 | |
| Paclitaxel | Taihua Corporations | _ | |
| RPMI-1640 | Gibco Life Technologies, Inc. | 11875 | |
| Penicillin–streptomycin | Gibco Life Technologies, Inc. | 15070 | |
| Fetal bovine serum | Gibco Life Technologies, Inc. | 16140071 | |
| Celite (Filter agent) | Sigma Aldrich | 6858 | See step 1.4 |
Referências
- Shang, L., Zhou, N., Gu, Y., Liu, F., Zeng, J. Comparative study on killing effect of esophageal cancer cell line between hypocrellin B-photodynamic therapy and hematoporphyrin derivative-photodynamic therapy. Chin J Cancer Prev Treat. 12, 1139-1142 (2005).
- Huisman, C., et al. Paclitaxel triggers cell death primarily via caspase-independent routes in the non-small cell lung cancer cell line NCI-H460. Clin Cancer Res. 8 (2), 596-606 (2002).
- Dolmans, D. E., Fukumura, D., Jain, R. K. Photodynamic therapy for cancer. Nat Rev Cancer. 3 (5), 380-387 (2003).
- Pass, H. I. Photodynamic therapy in oncology: mechanisms and clinical use. J Natl Cancer Inst. 85 (6), 443-456 (1993).
- Sutedja, T. G., Postmus, P. E. Photodynamic therapy in lung cancer. A review . J. Photochem. Photobiol. 36 (2), 199-204 (1996).
- Peng, C. L., Shieh, M. J., Tsai, M. H., Chang, C. C., Lai, P. S. Self-assembled star-shaped chlorin-core poly(epsilon-caprolactone)-poly(ethylene glycol) diblock copolymer micelles for dual chemo-photodynamic therapies. Biomaterials. 29 (26), 3599-3608 (2008).
- Chen, B., Pogue, B. W., Hasan, T. Liposomal delivery of photosensitising agents. Expert Opin Drug Deliv. 2 (3), 477-487 (2005).
- Lee, S. J., et al. Comparative study of photosensitizer loaded and conjugated glycol chitosan nanoparticles for cancer therapy. J Control Release. 152 (1), 21-29 (2011).
- Chang, J. E., et al. Anticancer efficacy of photodynamic therapy with hematoporphyrin-modified, doxorubicin-loaded nanoparticles in liver cancer. J. Photochem. Photobiol. 140, 49-56 (2014).
- Chang, J. E., Cho, H. J., Yi, E., Kim, D. D., Jheon, S. Hypocrellin B and paclitaxel-encapsulated hyaluronic acid-ceramide nanoparticles for targeted photodynamic therapy in lung cancer. J. Photochem. Photobiol. 158, 113-121 (2016).
- Wang, A. Z., Langer, R., Farokhzad, O. C. Nanoparticle delivery of cancer drugs. Annu. Rev. Med. 63, 185-198 (2012).
- Matsumura, Y., Maeda, H. A new concept for macromolecular therapeutics in cancer chemotherapy: mechanism of tumoritropic accumulation of proteins and the antitumor agent smancs. Cancer Res. 46 (12 Pt 1), 6387-6392 (1986).
- Penno, M. B., et al. Expression of CD44 in human lung tumors. Cancer Res. 54 (5), 1381-1387 (1994).
- Wilkins, R., Kutzner, B., Truong, M., Sanchez-Dardon, J., McLean, J. Analysis of radiation-induced apoptosis in human lymphocytes: Flow cytometry using Annexin V and propidium iodide versus the neutral comet assay. Cytometry. 48 (1), 14-19 (2002).
- Bannas, P., et al. Validation of nanobody and antibody based in vivo tumor xenograft NIRF-imaging experiments in mice using ex vivo flow cytometry and microscopy. J Vis Exp. (98), e52462 (2015).
- Fischer, A. H., Jacobson, K. A., Rose, J., Zeller, R. Hematoxylin and eosin staining of tissue and cell sections. Cold Spring Harbor Protocols. (5), (2008).
- Lam, S. Photodynamic therapy of lung cancer. Semin Oncol. 21 (6 Suppl 15), 15-19 (1994).
- Simone, C. B., et al. Photodynamic therapy for the treatment of non-small cell lung cancer. J Thorac Dis. 4 (1), 63-75 (2012).
