Uniquely modified RNA oligonucleotides targeting STAT3 suppress melanoma growth both in vitro and in vivo. 2009

Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, Hunan, P.R. China.

Signal transducers and activators of transcription-3 (STAT3), a central cytoplasmic transcription factor, is frequently overexpressed and constitutively activated during malignant transformation. The overexpression of STAT3 in melanoma cells is often observed and is suggested to be involved in tumorigenesis and development. In this study, a novel antisense RNA oligonucleotides targeting the STAT3 mRNA was 2'-O-methyl modified with a 3'-butanol tag was designed, and found this uniquely modified strategy dramatic increased the stability of the RNA oligonucleotides. The results showed that the RNA oligonucleotides, namely STT-33 and STT-34, strongly inhibited the target gene expression in the melanoma cells and resulted in increase cell apoptosis. Furthermore, the RNA oligonucleotides could significantly inhibit melanoma cell proliferation and xenografts growth in nude mice. Thus, the novel modified RNA oligonucleotides targeting STAT3 may serve as a useful tool to study the involvement of STAT3 in melanoma and potentially as an anti-cancer agent for melanoma.

UI MeSH Term Description Entries
D008545 Melanoma A malignant neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. It occurs mostly in adults and may originate de novo or from a pigmented nevus or malignant lentigo. Melanomas frequently metastasize widely, and the regional lymph nodes, liver, lungs, and brain are likely to be involved. The incidence of malignant skin melanomas is rising rapidly in all parts of the world. (Stedman, 25th ed; from Rook et al., Textbook of Dermatology, 4th ed, p2445) Malignant Melanoma,Malignant Melanomas,Melanoma, Malignant,Melanomas,Melanomas, Malignant
D008807 Mice, Inbred BALB C An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research. BALB C Mice, Inbred,BALB C Mouse, Inbred,Inbred BALB C Mice,Inbred BALB C Mouse,Mice, BALB C,Mouse, BALB C,Mouse, Inbred BALB C,BALB C Mice,BALB C Mouse
D008819 Mice, Nude Mutant mice homozygous for the recessive gene "nude" which fail to develop a thymus. They are useful in tumor studies and studies on immune responses. Athymic Mice,Mice, Athymic,Nude Mice,Mouse, Athymic,Mouse, Nude,Athymic Mouse,Nude Mouse
D009062 Mouth Neoplasms Tumors or cancer of the MOUTH. Cancer of Mouth,Mouth Cancer,Oral Cancer,Oral Neoplasms,Cancer of the Mouth,Neoplasms, Mouth,Neoplasms, Oral,Cancer, Mouth,Cancer, Oral,Cancers, Mouth,Cancers, Oral,Mouth Cancers,Mouth Neoplasm,Neoplasm, Mouth,Neoplasm, Oral,Oral Cancers,Oral Neoplasm
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012313 RNA A polynucleotide consisting essentially of chains with a repeating backbone of phosphate and ribose units to which nitrogenous bases are attached. RNA is unique among biological macromolecules in that it can encode genetic information, serve as an abundant structural component of cells, and also possesses catalytic activity. (Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed) RNA, Non-Polyadenylated,Ribonucleic Acid,Gene Products, RNA,Non-Polyadenylated RNA,Acid, Ribonucleic,Non Polyadenylated RNA,RNA Gene Products,RNA, Non Polyadenylated
D014162 Transfection The uptake of naked or purified DNA by CELLS, usually meaning the process as it occurs in eukaryotic cells. It is analogous to bacterial transformation (TRANSFORMATION, BACTERIAL) and both are routinely employed in GENE TRANSFER TECHNIQUES. Transfections
D015398 Signal Transduction The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway. Cell Signaling,Receptor-Mediated Signal Transduction,Signal Pathways,Receptor Mediated Signal Transduction,Signal Transduction Pathways,Signal Transduction Systems,Pathway, Signal,Pathway, Signal Transduction,Pathways, Signal,Pathways, Signal Transduction,Receptor-Mediated Signal Transductions,Signal Pathway,Signal Transduction Pathway,Signal Transduction System,Signal Transduction, Receptor-Mediated,Signal Transductions,Signal Transductions, Receptor-Mediated,System, Signal Transduction,Systems, Signal Transduction,Transduction, Signal,Transductions, Signal

Related Publications

Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
May 2013, Molecular therapy. Nucleic acids,
Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
July 2013, Molecular therapy. Nucleic acids,
Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
June 2011, International journal of oncology,
Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
January 2020, European journal of medicinal chemistry,
Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
February 2016, Oncogene,
Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
February 2016, Oncogene,
Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
September 2014, International journal of cancer,
Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
January 2020, Frontiers in cell and developmental biology,
Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
November 2015, Molecular carcinogenesis,
Lifang Yang, and Xiaoqian Ma, and Lanbo Xiao, and Min Tang, and Xinxian Weng, and Lunquan Sun, and Ya Cao
May 2014, Oncology reports,
Copied contents to your clipboard!