Association of laminin receptor gene fragments with nuclear matrices in high and low metastatic cancer cell lines

1996 ◽  
Author(s):  
H Yam ◽  
S Wu ◽  
L Yang ◽  
S ChengChew ◽  
J Zheng ◽  
...  
2021 ◽  
Author(s):  
Vichugorn Wattayagorn ◽  
Mesayamas Kongsema ◽  
Sukuntaros Tadakittisarn ◽  
Pramote Chumnanpuen

Riceberry rice bran is the part of rice that has been scrubbed out during coloring process. There are various health benefits with high protein content and antioxidant ability. The hydrolyzed rice bran consists of diverse peptides that provide various bioactive properties. This work aimed to study the effect of hydrolyzed riceberry rice bran extracted on colon cancer cell lines (HT- 29 and SW- 620) compared to normal cell (PCS- 291- 010). The MTT assay result showed that our extract has less cytotoxicity on normal cell (PCS-291-010, IC50 = 6,680.00 µg/ml) compared to the colon cancer cell lines and has more effect on metastatic cancer cell line (SW-620, IC50 = 5,492.31 µg /ml) than non-metastatic cancer cell line (HT-29, IC50 =6,040.76 µg/ml). According to the DNA fragmentation pattern analysis, the ladder pattern indicated that the rice bran extract can induce the apoptosis process in SW-620 cell line. Confirmed the pattern of apoptotic cell by AO/PI double stain test and quantified apoptotic cells by Annexin V. For the cell senescence analysis, SA-β-gal staining technique was performed at 24 h after treatments, HT-29 reached maximum senescence rate at 85.74% while SW-620 had only 17.23% of senescence. And a result of cell cycle analysis, HT-29 were decreased the number of cells in S, M/G2 phase, and increased the number of cells in G0/G1 phase. Furthermore > 50 kDa peptide fraction separated from HRBE has a potent anti-cancer cells (SW-620, IC50 = 4,908 µg/ml). In conclusion, the hydrolyzed riceberry rice bran extract can inhibit colon cancer cell lines with less effect on normal cell. The extracts could induce apoptosis process in metastatic cancer cell and induce senescence process in non-metastatic cancer cell. This observed information will be useful and applicable for medical research and colon cancer treatment in the future.


2017 ◽  
Vol 2 ◽  
pp. 9 ◽  
Author(s):  
Marco Ranzani ◽  
Vivek Iyer ◽  
Ximena Ibarra-Soria ◽  
Martin Del Castillo Velasco-Herrera ◽  
Mathew Garnett ◽  
...  

Background: Olfactory receptors (ORs) recognize odorant molecules and activate a signal transduction pathway that ultimately leads to the perception of smell. This process also modulates the apoptotic cycle of olfactory sensory neurons in an olfactory receptor-specific manner. Recent reports indicate that some olfactory receptors are expressed in tissues other than the olfactory epithelium suggesting that they may have pleiotropic roles. Methods: We investigated the expression of 301 olfactory receptor genes in a comprehensive panel of 968 cancer cell lines. Results: Forty-nine per cent of cell lines show expression of at least one olfactory receptor gene. Some receptors display a broad pattern of expression across tumour types, while others were expressed in cell lines from a particular tissue. Additionally, most of the cancer cell lines expressing olfactory receptors express the effectors necessary for OR-mediated signal transduction. Remarkably, among cancer cell lines, OR2C3 is exclusively expressed in melanoma lines. We also confirmed the expression of OR2C3 in human melanomas, but not in normal melanocytes. Conclusions: The pattern of OR2C3 expression is suggestive of a functional role in the development and/or progression of melanoma. Some olfactory receptors may contribute to tumorigenesis.


2018 ◽  
Author(s):  
Ke Liu ◽  
Patrick A. Newbury ◽  
Benjamin S. Glicksberg ◽  
William ZD Zeng ◽  
Eran R. Andrechek ◽  
...  

AbstractMetastasis is the most common cause of cancer-related death and, as such, there is an urgent need to discover new therapies to treat metastasized cancers. Cancer cell lines are widely-used models to study cancer biology and test drug candidates. However, it is still unknown to what extent they adequately resemble the disease in patients. The recent accumulation of large-scale genomic data in cell lines, mouse models, and patient tissue samples provides an unprecedented opportunity to evaluate the suitability of cell lines for metastatic cancer research. In this work, we used breast cancer as a case study. The comprehensive comparison of the genetic profiles of 57 breast cancer cell lines with those of metastatic breast cancer samples revealed substantial genetic differences. In addition, we identified cell lines that more closely resemble different subtypes of metastatic breast cancer. Surprisingly, a combined analysis of mutation, copy number variation and gene expression data suggested that MDA-MB-231, the most commonly used triple negative cell line for metastatic breast cancer research, had little genomic similarity with Basal-like metastatic breast cancer samples. We further compared cell lines with organoids, a new type of preclinical model which are becoming more popular in recent years. We found that organoids outperformed cell lines in resembling the transcriptome of metastatic breast cancer samples. However, additional differential expression analysis suggested that both types of models could not mimic the effects of tumor microenvironment and meanwhile had their own bias towards modeling specific biological processes. Our work provides a guide of cell line selection in metastasis-related study and sheds light on the potential of organoids in translational research.


2006 ◽  
Vol 175 (4S) ◽  
pp. 258-258
Author(s):  
Ruth Schwaninger ◽  
Cyrill A. Rentsch ◽  
Antoinette Wetterwald ◽  
Irena Klima ◽  
Gabri Van der Pluijm ◽  
...  

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