Anti-LYRIC/MTDH Antibody Picoband®

MTDH (Metadherin), also known as protein LYRIC or astrocyte elevated gene-1 protein (AEG-1) is a protein that in humans is encoded by the MTDH gene. AEG-1 is involved in HIF-1alpha mediated angiogenesis. AEG-1 also interacts with SND1 and involved in RNA-induced silencing complex (RISC) and plays very important role in RISC and miRNA functions. AEG-1 induces an oncogene called Late SV40 factor (LSF/TFCP2) which is involved in thymidylate synthase (TS) induction and DNA biosynthesis synthesis. Late SV40 factor (LSF/TFCP2) enhances angiogenesis by transcriptionally up-regulating matrix metalloproteinase-9 (MMP9) . AEG-1 acts as an oncogene in melanoma, malignant glioma, breast cancer and hepatocellular carcinoma. It is highly expressed in these cancers and helps in progression and development of these cancers. It is induced by c-Myc oncogene and plays very important role in anchorage independent growth of cancer cells.

Protein LYRIC;3D3/LYRIC; Astrocyte elevated gene-1 protein; AEG-1; Lysine-rich CEACAM1 co-isolated protein; Metadherin; Metastasis adhesion protein; MTDH; AEG1, LYRIC

E.coli-derived human LYRIC recombinant protein (Position: D101-Q270) . Human LYRIC shares 94% amino acid (aa) sequence identity with both mouse and rat LYRIC.

Widely expressed with highest levels in muscle-dominating organs such as skeletal muscle, heart, tongue and small intestine and in endocrine glands such as thyroid and adrenal gland. Overexpressed in various cancers including breast, brain, prostate, melanoma and glioblastoma multiforme. .

Actin, etc., Cancer, Cell Adhesion, Cytoskeleton, Cytoskeleton/ECM, Microfilaments, Oncoproteins, Oncoproteins/Suppressors, Signal Transduction, Tight Junctions

Downregulates SLC1A2/EAAT2 promoter activity when expressed ectopically. Activates the nuclear factor kappa-B (NF- kappa-B) transcription factor. Promotes anchorage-independent growth of immortalized melanocytes and astrocytes which is a key component in tumor cell expansion. Promotes lung metastasis and also has an effect on bone and brain metastasis, possibly by enhancing the seeding of tumor cells to the target organ endothelium. Induces chemoresistance. .

1. Brown DM, Ruoslahti E (April 2004) . Metadherin, a cell surface protein in breast tumors that mediates lung metastasis. Cancer Cell 5 (4) : 365–74. 2. Hu G, Chong RA, Yang Q, Wei Y, Blanco MA, Li F, Reiss M, Au JL, Haffty BG, Kang Y (January 2009) . MTDH activation by 8q22 genomic gain promotes chemoresistance and metastasis of poor-prognosis breast cancer. Cancer Cell 15 (1) : 9–20. 3. Yoo BK, Emdad L, Lee SG, Su ZZ, Santhekadur P, Chen D, Gredler R, Fisher PB, Sarkar D (January 2011) .Astrocyte elevated gene-1 (AEG-1) : A multifunctional regulator of normal and abnormal physiology.Pharmacol Ther 130 (1) : 1–8.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Endoplasmic reticulum membrane; Single-pass membrane protein. Nucleus membrane ; Single-pass membrane protein . Cell junction, tight junction . Nucleus, nucleolus . Cytoplasm, perinuclear region. In epithelial cells, recruited to tight junctions (TJ) during the maturation of the TJ complexes. A nucleolar staining may be due to nuclear targeting of an isoform lacking the transmembrane domain (By similarity) . TNF-alpha causes translocation from the cytoplasm to the nucleus. .