Cancer is a global health problem that is often successfully addressed by therapy, with cancer survivors increasing in numbers and living longer world around. Although new cancer treatment options are continuously exp...Cancer is a global health problem that is often successfully addressed by therapy, with cancer survivors increasing in numbers and living longer world around. Although new cancer treatment options are continuously explored, platinum based chemotherapy agents remain in use due to their efficiency and availability. Unfortunately, all cancer therapies affect normal tissues as well as cancer, and more than 40 specific side effects of platinum based drugs documented so far decrease the quality of life of cancer survivors. Chemotherapy-induced peripheral neuropathy is a frequent side effects of platinum-based chemotherapy agents. This cluster of complications is often so debilitating that patients occasionally have to discontinue the therapy. Sensory neurons of dorsal root ganglia are at the core of chemotherapy-induced peripheral neuropathy symptoms. In these postmitotic cells, DNA damage caused by platinum chemotherapy interferes with normal functioning. Accumulation of DNA-platinum adducts correlates with neurotoxic severity and development of sensation of pain. While biochemistry of DNA-platinum adducts is the same in all cell types, molecular mechanisms affected by DNA-platinum adducts are different in cancer cells and non-dividing cells. This review aims to raise awareness about platinum associated chemotherapy-induced peripheral neuropathy as a medical problem that has remained unexplained for decades. We emphasize the complexity of this condition both from clinical and mechanistical point of view and focus on recent findings about chemotherapy-induced peripheral neuropathy in in vitro and in vivo model systems. Finally, we summarize current perspectives about clinical approaches for chemotherapy-induced peripheral neuropathy treatment.展开更多
The interaction of tetracyline-Pt(Ⅱ)complex with DNA was studied.The studies on absorption spectrum and electrochemistry indicate that the interaction of tetracyline with DNA is not obvious.After tetracycline interac...The interaction of tetracyline-Pt(Ⅱ)complex with DNA was studied.The studies on absorption spectrum and electrochemistry indicate that the interaction of tetracyline with DNA is not obvious.After tetracycline interact with Pt(Ⅱ)to form complex,the complex can interact with calf thymus DNA by way of intercalation.And the formation of tetracyline-Pt(Ⅱ)complex could be affected by the pH value of the sulotion.展开更多
Nanoscale platinum wires have been prepared by means of an electrochemical technique on DNA template.The platinum nanowires were characterized via transmission electron microscopy（TEM） and X-ray diffraction（XRD）.T...Nanoscale platinum wires have been prepared by means of an electrochemical technique on DNA template.The platinum nanowires were characterized via transmission electron microscopy（TEM） and X-ray diffraction（XRD）.The length of the nanowires was about 50 nm and the diameter was about 1.3 μm.It was found that the concentration of PtCl4,activation time,electrolytic potential and reducing time affected the sizes and shapes of the platinum nanowires.展开更多
基金supported by grant from the Ministry of Education,Science and Technological Development,Republic of Serbia(173051)supported by a UICC Yamagiwa-Yoshida Memorial International Cancer Study Grant(YY2/2015/381414)
文摘Cancer is a global health problem that is often successfully addressed by therapy, with cancer survivors increasing in numbers and living longer world around. Although new cancer treatment options are continuously explored, platinum based chemotherapy agents remain in use due to their efficiency and availability. Unfortunately, all cancer therapies affect normal tissues as well as cancer, and more than 40 specific side effects of platinum based drugs documented so far decrease the quality of life of cancer survivors. Chemotherapy-induced peripheral neuropathy is a frequent side effects of platinum-based chemotherapy agents. This cluster of complications is often so debilitating that patients occasionally have to discontinue the therapy. Sensory neurons of dorsal root ganglia are at the core of chemotherapy-induced peripheral neuropathy symptoms. In these postmitotic cells, DNA damage caused by platinum chemotherapy interferes with normal functioning. Accumulation of DNA-platinum adducts correlates with neurotoxic severity and development of sensation of pain. While biochemistry of DNA-platinum adducts is the same in all cell types, molecular mechanisms affected by DNA-platinum adducts are different in cancer cells and non-dividing cells. This review aims to raise awareness about platinum associated chemotherapy-induced peripheral neuropathy as a medical problem that has remained unexplained for decades. We emphasize the complexity of this condition both from clinical and mechanistical point of view and focus on recent findings about chemotherapy-induced peripheral neuropathy in in vitro and in vivo model systems. Finally, we summarize current perspectives about clinical approaches for chemotherapy-induced peripheral neuropathy treatment.
文摘The interaction of tetracyline-Pt(Ⅱ)complex with DNA was studied.The studies on absorption spectrum and electrochemistry indicate that the interaction of tetracyline with DNA is not obvious.After tetracycline interact with Pt(Ⅱ)to form complex,the complex can interact with calf thymus DNA by way of intercalation.And the formation of tetracyline-Pt(Ⅱ)complex could be affected by the pH value of the sulotion.
文摘Nanoscale platinum wires have been prepared by means of an electrochemical technique on DNA template.The platinum nanowires were characterized via transmission electron microscopy（TEM） and X-ray diffraction（XRD）.The length of the nanowires was about 50 nm and the diameter was about 1.3 μm.It was found that the concentration of PtCl4,activation time,electrolytic potential and reducing time affected the sizes and shapes of the platinum nanowires.
