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Therapeutic oligonucleotides (OGNs) drugs are artificially synthesized single or double stranded short nucleic acids, typically 15 to 30 base pairs in length. OGNs have been rapidly developed as new therapeutic drugs with increasing attention in the discovery and development of drugs concerning various disease fields. Compared with Europe and America, there are currently no other OGNs drugs listed in China, except for Spinraza, which has been approved for marketing as an orphan drug. The development of OGNs in China started relatively late and is still in its early stages of development. However, the OGNs drug market in China is anticipated to grow quickly due to the country’s large population, high patient demand, ongoing support for the development of oligonucleotide drugs in the future, and the steady maturation of related technologies by domestic businesses. Because of their special physicochemical characteristics, OGNs drugs are challenging to design biological analysis techniques. Currently, there are few reports on quantitative analysis methods for oligonucleotide drugs in China. Therefore, the development of sensitive and reliable bioanalysis methods for oligonucleotides is the key to investigate oligonucleotides’ pharmacokinetic and pharmacodynamic properties. Liquid chromatography-mass spectrometry (LC-MS) can quantify OGNs and their metabolites concurrently, compared with traditional ELISA approaches. Numerous benefits come with using LC-MS, in particular, the extensive use of high-resolution mass spectrometry allows for the identification of metabolites, which provides details on base composition and sequence structure, in addition to quantitative information about target oligonucleotides. It has now emerged as the go-to technique for OGN quantitative analysis. The application of LC-MS in the identification of therapeutic oligonucleotide medicines is the primary focus of this paper, which also discusses its benefits and drawbacks. Lastly, it looks at the LC-MS development trend for oligonucleotide detection, which includes a lower detection level and potential general methods.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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