scholarly journals Preparation of a PEGylated liposome that co-encapsulates l-arginine and doxorubicin to achieve a synergistic anticancer effect

RSC Advances ◽  
2021 ◽  
Vol 11 (54) ◽  
pp. 34101-34106
Author(s):  
Haitao Feng ◽  
Jeong-Hun Kang ◽  
Song Qi ◽  
Akihiro Kishimura ◽  
Takeshi Mori ◽  
...  

Strategies that combine chemotherapies with unconventional agents such as nitric oxide (NO) have been shown to enhance cancer therapies.

2014 ◽  
pp. 98-101
Author(s):  
Thi Bich Hien Le ◽  
Viet Duc Ho ◽  
Thi Hoai Nguyen

Nowadays, cancer treatment has been a big challenge to healthcare systems. Most of clinical anti-cancer therapies are toxic and cause adverse effects to human body. Therefore, current trend in science is seeking and screening of natural compounds which possess antineoplastic activities to utilize in treatment. Uvaria L. - Annonaceae includes approximately 175 species spreading over tropical areas of Asia, Australia, Africa and America. Studies on chemical compositions and pharmacological effects of Uvaria showed that several compound classes in this genus such as alkaloid, flavonoid, cyclohexen derivaties, acetogenin, steroid, terpenoid, etc. indicate considerable biological activities, for example anti-tumor, anti-cancer, antibacterial, antifungal, antioxidant, etc. Specifically, anti-cancer activity of fractions of extract and pure isolated compounds stands out for cytotoxicity against many cancer cell lines. This study provides an overview of anti-cancer activity of Uvaria and suggests a potential for further studies on seeking and developing novel anti-cancer compounds. Key words: Anti-cancer, Uvaria.


Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2463 ◽  
Author(s):  
Maria Basile ◽  
Emanuela Mazzon ◽  
Tamara Krajnovic ◽  
Dijana Draca ◽  
Eugenio Cavalli ◽  
...  

Glioblastoma (GBM) is the most frequent and deadly form of primary malignant brain tumor among adults. A promising emerging approach for GBM treatment may be offered from HIV protease inhibitors (HIV-PIs). In fact, in addition to their primary pharmacological activity in the treatment of HIV infection, they possess important anti-neoplastic effects. According to previous studies, the addition of a nitric oxide (NO) donating group to parental compounds can reduce their toxicity and enhance the anticancer action of various compounds, including HIV-PIs. In this study we compared the effects of the HIV-PI Lopinavir (Lopi) and of its NO-derivative Lopinavir-NO (Lopi-NO) on the in vitro growth of LN-229 and U-251 human GBM cell lines. Lopi-NO reduced the viability of LN-229 and U-251 cells at significantly lower concentrations than the parental drug. In particular, Lopi-NO inhibited tumor cell proliferation and induced the differentiation of U-251 cells toward an astrocyte-like phenotype without triggering significant cell death in both cell types. The anticancer effect of Lopi-NO was persistent even upon drug removal. Furthermore, Lopi-NO induced strong autophagy that did not appear to be related to its chemotherapeutic action. Overall, our results suggest that Lopi-NO could be a potential effective anticancer drug for GBM treatment.


2020 ◽  
Vol 176 ◽  
pp. 113855 ◽  
Author(s):  
Silvia Ghione ◽  
Nesrine Mabrouk ◽  
Catherine Paul ◽  
Ali Bettaieb ◽  
Stéphanie Plenchette

2020 ◽  
Vol 15 (12) ◽  
pp. 1934578X2097423
Author(s):  
Sen Jiang ◽  
Dong-Li Li ◽  
Jie Chen ◽  
Xi Zheng ◽  
Pan-Pan Wu ◽  
...  

Natural products have presented potentiality to improve the outcomes of cancer therapies. Impressic acid (E12-1) and acankoreanogein (E13-1), important activity compounds in Acanthopanax trifoliatus (L.) Merr., show widely biological activities. In this study, we isolated E12-1 and E13-1 from Acanthopanax trifoliatus (L.) Merr., and investigated their improvement effect in gemcitabine (GEM) treatment in Panc-1 cells. The results showed that GEM in combination with E12-1 or E13-1 showed stronger inhibition on the growth and induction of apoptosis in Panc-1 cells compared to GEM, E12-1, or E13-1 alone. GEM in combination with E12-1or E13-1 also strongly inhibited cell migration. Mechanistic investigation showed that GEM in combination with E12-1or E13-1 effectively inhibited the activition of nuclear factor kappa-light-chain-enhancer of activated B cells and Stat 3. Overall, GEM in combination with E12-1 or E13-1 might be an effective strategy for the prevention of prostate cancer.


2020 ◽  
Vol 8 (5) ◽  
pp. 1329-1344 ◽  
Author(s):  
Federica Sodano ◽  
Robert J. Cavanagh ◽  
Amanda K. Pearce ◽  
Loretta Lazzarato ◽  
Barbara Rolando ◽  
...  

Combination of Doxorubicin with light-regulated NO release achieved through formulation strategy of tailored polymeric conjugate nanoparticles may open new treatment modalities to improve cancer therapies.


Cancers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 407
Author(s):  
Soo-Bin Yang ◽  
Mi-Hyun Lee ◽  
Bo-Ram Kim ◽  
Yu-Min Choi ◽  
Bum-Joon Kim

Recently, we reported a 6-mer hepatitis B virus (HBV)-derived peptide, Poly6, that exerts antiviral effects against human immunodeficiency virus type 1 (HIV-1). Here, we explored the immunotherapeutic potential of Poly6 via its administration into dendritic cells (DCs) in a mouse model. Our data revealed that Poly6 treatment led to enhanced production of tumor necrosis factor alpha (TNF-α) and inducible nitric oxide synthase (iNOS)-producing DCs (Tip-DCs) in a type 1 interferon (IFN-I)-dependent manner via the induction of mitochondrial stress. Poly6 treatment in mice implanted with MC38 cells, a murine colon adenocarcinoma line, led to attenuated tumor formation, primarily due to direct cell death induced by Tip-DC mediated nitric oxide (NO) production and indirect killing by Tip-DC mediated cluster of differentiation 8 (CD8) cytotoxic T lymphocyte (CTL) activation via CD40 activation. Moreover, Poly6 treatment demonstrated an enhanced anticancer effect with one of the checkpoint inhibitors, the anti PD-L1 antibody. In conclusion, our data reveal that Poly6 treatment elicits an antitumor immune response in mice, possibly through NO-mediated oncolytic activity via Tip-DC activation and Tip-DC mediated CTL activation. This suggests that Poly6 represents a potential adjuvant for cancer immunotherapy by enhancing the anticancer effects of immune checkpoint inhibitors.


2020 ◽  
Author(s):  
Jin Zhang ◽  
Caihua Hang ◽  
Wei Shao ◽  
Wengang Li ◽  
Donghai Lin

Abstract Background Metformin is a widely prescribed anti-diabetes drug with potential utilities for cancer therapies. Several previous studies have related metformin to the reduced risk of cholangiocarcinoma (CCA), highlighting its potentialities for the treatments of CCA. Methods In this study, cell viability assay and colony formation assay were used to test the inhibition effect of metformin on Mz-ChA-1 cells. The NMR-based metabonomic analysis was conduct to compare the differences between the metformin-treated (Met) and control (Ctrl) groups of the Mz-ChA-1 cells. Significant metabolites were identified from multivariate statistical analysis of 1D 1 H-NMR spectral data, and differential metabolites were identified from the pair-wise t-test of the metabolite levels. Significantly altered metabolic pathways were identified based on characteristic metabolites which were determined by a combination of the significant metabolites and differential metabolites. Results Here, we demonstrated that metformin treatment could inhibit the proliferation of the CCA cell line Mz-ChA-1 in a dose-dependent manner. The NMR-based metabonomic analysis showed a distinct discrimination between the Met and Ctrl groups of the Mz-ChA-1 cells. Moreover, The Met group exhibited promoted glycolysis and suppressed TCA cycle compared with the Ctrl group. While metformin treatment decreased non-essential amino acids, it also increased essential amino acids and UDP-GlcNAc, implying the occurrence of autophagy and cell cycle arrest in metformin-treated CAA cells . Conclusions This work provides a mechanistic understanding of the anticancer effect of metformin on CAA, and is beneficial to the further development of metformin as an anticancer drug


2018 ◽  
Vol 18 (4) ◽  
pp. 476-487
Author(s):  
Magdalena Guzowska ◽  
Monika Kalinowska ◽  
Wlodzimierz Lewandowski

The constant search for successful cancer therapies lasts for decades. Apart from the huge scientific effort and enormous sum of spent money, only a small amount of newly developed medicines move into clinical use (only 94 registered anticancer drugs in the last 12 years). Anticancer regimes are still overcome by drugs invented over 50 years ago such as cisplatin and doxorubicin. Significant progress in the development of improved anticancer drugs was made due to multiple studies on the relationship between the molecular structure of chemical compounds and their cytostatic activity. A number of ligands (mainly organic) with quite effective anticancer properties are known, but they show insufficient activity, selectivity and multidrug resistance. Formation of transition metal – ligand complexes (with proven anticancer effect) changes the properties of the latter. The factors that affect the cytotoxic properties of metal complexes are: the type of ligand and metal, the nature of the connection between metal and ligand, and the distribution of electronic charge density in the formed complexes. Here, we report the recent efforts to improve existing compounds with confirmed anticancer activity. They seem to be unappreciated as their effects appear to be less spectacular than that of targeted anticancer drugs (i.e. based on antibodies or small RNAs).


2020 ◽  
Vol 10 ◽  
Author(s):  
Jin Zhang ◽  
Caihua Hang ◽  
Ting Jiang ◽  
Shenghui Yi ◽  
Wei Shao ◽  
...  

Metformin is a widely prescribed anti-diabetes drug with potential utilities for cancer therapies. Several studies have related metformin to the reduced risk of cholangiocarcinoma (CCA), highlighting its potentialities for the treatments of CCA. However, the underlying molecular mechanisms remain elusive. Here, we demonstrated that metformin treatment could inhibit proliferations of the human CCA cell lines Mz-ChA-1 and QBC939 in dose-dependent manners. The NMR-based metabonomic analyses showed distinct discriminations between the metformin-treated (Met) and control (Ctrl) groups of both CCA cells. Characteristic metabolites were identified by a combination of multivariate statistical analysis of 1D 1H-NMR spectral data and the pair-wise t-test of metabolite levels. We then identified four significantly altered metabolic pathways based on the characteristic metabolites, including glucose metabolism, oxidative stress-related metabolism, energy metabolism, and amino acids metabolism. Comparing CCA cells with normal human umbilical vein endothelial cells (HUVECs), we found that metformin treatment profoundly promoted glycolysis and specifically increased the levels of BCAAs and UDP-GlcNAc, implying the occurrence of autophagy and cell cycle arrest in metformin-treated CAA cells. This work provides a mechanistic understanding of the anticancer effect of metformin treatment on CAA cells, and is beneficial to further developments of metformin as an anticancer drug.


1998 ◽  
Vol 19 (6) ◽  
pp. 415-419
Author(s):  
JUNKO TANAKA ◽  
KUNIO KOSHIMURA ◽  
YOSHIO MURAKAMI ◽  
MICHIHIRO TSUMORI ◽  
YUZURU KATO

Sign in / Sign up

Export Citation Format

Share Document