scholarly journals Analysis of Radiation Interactions and Biological Effects for Boron Neutron Capture Therapy

2018 ◽  
Vol 35 (3) ◽  
pp. 203-207
Author(s):  
Ren-Tai Chiang
Keyword(s):  
Cell Death ◽  
Cancer Cells ◽  
Blood Supply ◽  
Boron Neutron Capture Therapy ◽  
Neutron Capture ◽  
Biological Effects ◽  
Neutron Capture Therapy ◽  
Boron Neutron Capture ◽  
Cancer Tumor ◽  
Ionizing Radiations

 The direct and indirect ionizing radiation sources for boron neutron capture therapy (BNCT)are identi?ed. The mechanisms of physical, chemical and biological radiation interactions for BNCT are systematically described and analyzed. The relationship between the effect of biological radiation and radiation dose are illustrated and analyzed for BNCT. If the DNAs in chromosomes are damaged by ion- izing radiations, the instructions that control the cell function and reproduction are also damaged. This radiation damage may be reparable, irreparable, or incorrectly repaired. The irreparable damage can result in cell death at next mitosis while incorrectly repaired damage can result in mutation. Cell death leads to variable degrees of tissue dysfunction, which can affect the whole organism’s functions. Can- cer cells cannot live without oxygen and nutrients via the blood supply. A cancer tumor can be shrunk by damaging angiogenic factors and/or capillaries via ionizing radiations to decrease blood supply into the cancer tumor. The collisions between ionizing radiations and the target nuclei and the absorption of the ultraviolet, visible light, infrared and microwaves from bremsstrahlung in the tumor can heat up and damage cancer cells and function as thermotherapy. The cancer cells are more chemically and biologically sensitive at the BNCT-induced higher temperatures since free-radical-induced chemical re- actions are more random and vigorous at higher temperatures after irradiation, and consequently the cancer cells are harder to divide or even survive due to more cell DNA damage. BNCT is demonstrated via a recent clinical trial that it is quite effective in treating recurrent nasopharyngeal cancer.

Bahan Sasaran Sebagai Sumber Neutron yang Optimal untuk Boron Neutron Capture Therapy (BNCT)

2017 ◽  
Vol 1 ◽  
pp. 104
Author(s):  
Yan Surono ◽  
C Cari ◽  
Yohannes Sarjono
Keyword(s):  
Cancer Cells ◽  
Boron Neutron Capture Therapy ◽  
Neutron Capture ◽  
Neutron Capture Therapy ◽  
Radioactive Elements ◽  
Therapeutic Technique ◽  
The Core ◽  
Boron Neutron Capture ◽  
Deadly Disease ◽  
Α Particles

<p><strong>Abstract</strong> Cancer is a deadly disease that exist on planet earth. Efforts were made to be able to kill cancer cells either by manual operation or by radiotherapy. One way to use energy radiation radioactive elements as killers of cancer cells is Boron Neutron Capture Therapy (BNCT). BNCT is a therapeutic technique that utilizes the interaction of neutron capture by the core 10B will produce α-particles and nuclei 7Li results by reaction 10B (n, α) 7Li. It therefore requires a material that will produce neutrons used in BNCT. Materials  target that will be searched in order to obtain optimal materials according to the requirements provided by the International Atomic Agency (IAEA).<em></em></p><p><em> </em></p><p><strong>Keywords </strong>: Kanker, Material, Neutron, BNCT</p><p align="center"><strong><em> </em></strong></p><p><strong>Abstrak</strong> Kanker adalah salah satu penyakit yang mematikan yang ada di planet bumi. Upaya upaya dilakukan untuk dapat membunuh sel kanker baik itu  secara operasi manual maupun dengan cara radioterapi. Salah satu cara yang memanfaatkan energi radiasi unsur unsur radioaktif sebagai pembunuh sel kanker adalah Boron Neutron Capture Therapy (BNCT). BNCT merupakan teknik terapi yang memanfaatkan interaksi tangkapan neutron oleh inti 10B yang akan menghasilkan partikel-α dan inti hasil 7Li melalui reaksi 10B(n,α) 7Li. Oleh sebab itu diperlukan material yang akan menghasilkan neutron digunakan dalam BNCT. Bahan - bahan sasaran yang akan ditelusur dalam upaya mendapatkan bahan yang optimal sesuai persyaratan yang diberikan oleh International Atomic Agency (IAEA).</p><p><em> </em></p><p><strong>Kata Kunci </strong>: Kanker, Material, Neutron, BNCT</p>

scholarly journals Cyclic-RGDyC functionalized liposomes for dual-targeting of tumor vasculature and cancer cells in glioblastoma: An in vitro boron neutron capture therapy study

Oncotarget ◽  
2017 ◽  
Vol 8 (22) ◽  
pp. 36614-36627 ◽  
Author(s):  
Weirong Kang ◽  
Darren Svirskis ◽  
Vijayalekshmi Sarojini ◽  
Ailsa L. McGregor ◽  
Joseph Bevitt ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Boron Neutron Capture Therapy ◽  
Neutron Capture ◽  
Tumor Vasculature ◽  
Neutron Capture Therapy ◽  
Boron Neutron Capture ◽  
Dual Targeting

scholarly journals Implications of radiation microdosimetry for accelerator-based boron neutron capture therapy: a radiobiological perspective

2020 ◽  
Vol 93 (1111) ◽  
pp. 20200311
Author(s):  
Hisanori Fukunaga ◽  
Yusuke Matsuya ◽  
Koichi Tokuuye ◽  
Motoko Omura
Keyword(s):  
Boron Neutron Capture Therapy ◽  
Neutron Capture ◽  
Therapeutic Potential ◽  
Biological Effects ◽  
Point Of View ◽  
Neutron Capture Therapy ◽  
Boron Neutron Capture ◽  
Medical Institutions ◽  
Biological Effectiveness ◽  
Underlying Mechanisms

Boron neutron capture therapy (BNCT) has great potential to selectively destroy cancer cells while sparing surrounding normal cells. The basic concept of BNCT was developed in the 1930s, but it has not yet been commonly used in clinical practice, even though there is now a large number of experimental and translational studies demonstrating its marked therapeutic potential. With the development of neutron accelerators that can be installed in medical institutions, accelerator-based BNCT is expected to become available at several medical institutes around the world in the near future. In this commentary, from the point of view of radiation microdosimetry, we discuss the biological effects of BNCT, especially the underlying mechanisms of compound biological effectiveness. Radiobiological perspectives provide insight into the effectiveness of BNCT in creating a synergy effect in the field of clinical oncology.

Cellular uptake evaluation of pentagamaboronon-0 (PGB-0) for boron neutron capture therapy (BNCT) against breast cancer cells

2019 ◽  
Vol 37 (6) ◽  
pp. 1292-1299
Author(s):  
Adam Hermawan ◽  
Ratna Asmah Susidarti ◽  
Ratna Dwi Ramadani ◽  
Lailatul Qodria ◽  
Rohmad Yudi Utomo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Cells ◽  
Cellular Uptake ◽  
Boron Neutron Capture Therapy ◽  
Neutron Capture ◽  
Breast Cancer Cells ◽  
Neutron Capture Therapy ◽  
Boron Neutron Capture

Synthesis of 1-Amino-3-{2-[7-(6-deoxy-α/β-D-galactopyranos-6-yl)-1,7-dicarba-closo-dodecaboran(12)-1-yl]ethyl}cyclobutanecarboxylic Acid Hydrochloride

2002 ◽  
Vol 67 (6) ◽  
pp. 836-842 ◽  
Author(s):  
George W. Kabalka ◽  
Bhaskar C. Das ◽  
Sasmita Das ◽  
Guishing Li ◽  
Rajiv Srivastava ◽  
...  
Keyword(s):  
Amino Acid ◽  
Cancer Cells ◽  
Boron Neutron Capture Therapy ◽  
Neutron Capture ◽  
Neutron Capture Therapy ◽  
Toxicity Data ◽  
Boron Neutron Capture ◽  
Cyclobutanecarboxylic Acid ◽  
Strecker Synthesis ◽  
Acid Hydrochloride

1-Amino-3-{2-[7-(6-deoxy-α/β-D-galactopyranos-6-yl)-1,7-dicarba-closo-dodecaboran(12)-1-yl]ethyl}cyclobutanecarboxylic acid was synthesized as a potential new agent for boron neutron capture therapy. The key step in the synthesis is the alkylation of 3-{2-[1,7-dicarba-closo-dodecaboran(12)-1-yl]ethyl}cyclobutanone ethylene monothioketal with 1,2:3,4-di-O-isopropylidene-6-O-triflyl-α-D-galactopyranose which gave the precursor ketone that was then converted to the title amino acid via a Bücherer-Strecker synthesis followed by removal of isopropylidene groups in HCl. Preliminary toxicity data in A 435 cancer cells were obtained.

scholarly journals Boron rich nanotube drug carrier system is suited for boron neutron capture therapy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fabian Heide ◽  
Matthew McDougall ◽  
Candice Harder-Viddal ◽  
Roy Roshko ◽  
David Davidson ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Cancer Cells ◽  
Boron Neutron Capture Therapy ◽  
Neutron Capture ◽  
Drug Carrier ◽  
Integrative Approach ◽  
Target Cells ◽  
Neutron Capture Therapy ◽  
Excellent Thermal Stability ◽  
Boron Neutron Capture

AbstractBoron neutron capture therapy (BNCT) is a two-step therapeutic process that utilizes Boron-10 in combination with low energy neutrons to effectively eliminate targeted cells. This therapy is primarily used for difficult to treat head and neck carcinomas; recent advances have expanded this method to cover a broader range of carcinomas. However, it still remains an unconventional therapy where one of the barriers for widespread adoption is the adequate delivery of Boron-10 to target cells. In an effort to address this issue, we examined a unique nanoparticle drug delivery system based on a highly stable and modular proteinaceous nanotube. Initially, we confirmed and structurally analyzed ortho-carborane binding into the cavities of the nanotube. The high ratio of Boron to proteinaceous mass and excellent thermal stability suggest the nanotube system as a suitable candidate for drug delivery into cancer cells. The full physicochemical characterization of the nanotube then allowed for further mechanistic molecular dynamic studies of the ortho-carborane uptake and calculations of corresponding energy profiles. Visualization of the binding event highlighted the protein dynamics and the importance of the interhelical channel formation to allow movement of the boron cluster into the nanotube. Additionally, cell assays showed that the nanotube can penetrate outer membranes of cancer cells followed by localization around the cells’ nuclei. This work uses an integrative approach combining experimental data from structural, molecular dynamics simulations and biological experiments to thoroughly present an alternative drug delivery device for BNCT which offers additional benefits over current delivery methods.

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