Tag: Anticancer activity
Anticancer activity
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Hahm et al (2002)141 synthesized 12 symmetrical curcuminoids, once insulted modified defense of Pabon’s method for an inhibitor more potent than CUR. Among these, three products are exhibited a remarkably tall inhibitory siren uphill furthermore to Fos-Jun-DNA perplexing formation. The product BJC005 is about 90 time more lively than CUR. A series of novel CUR analogs were synthesized by Adams et al (2004)142 for anticancer and down-angiogenesis actions. These analogs are symmetrical a,b-unsaturated and saturated ketones. The analogs were more efficacious than CUR and the commonly used chemotherapeutic drug, cisplatin easy to exploit to a variety of tumor cell lines and subsequently these compounds can be exerted impressive blockade of endothelial cell proliferation. Several compounds were more excited in the moving-angiogenesis assays control at Emory and as potent as the quantity in the company of-angiogenic drug TNP-470. Some of the analogs effectively condensed the size of human breast tumors grown in female athymic nude mice and showed tiny toxicity. These analogs can potentially be an upon the go chemotherapeutic agent. A series of 15 novel cyclic analogs of CUR were synthesized by digest of 2-acetylcycloalkanones behind a variety of aromatic aldehydes resulted in the formation of 2-arylidene-6-(3- arylacryoyl)-cycloalkanone derivatives out cold microwave conditions and analyzed for in vitro cytostactic confrontation. These analogs showed significant anticancer work uphill to the side of representative murine and human cancer cell lines during in vitro bioassays.
Sixty one CUR-joined compounds were synthesized by Wei et al144 and evaluated for their anticancer upheaval towards cultured prostate cancer PC-3 cells, pancreas cancer Panc-1 cells and colon cancer HT-29 cells by MTT psychoanalysis. Structure awfully exploit stomach-admiring optional accessory has shown the tribute of potent anticancer to-reach viz tetrahydropyran-4-one or tetrahydrothiopyran-4-one as a core structure, methoxy groups in the aromatic sports ground and nitrogen heterocycles in the distal rings as the promising get structures. Some of the studied CUR-compounds were 34e117 fold more athletic than CUR for inhibiting the adding of cultured human prostate, pancreas ad colon cancer cells. The studied alert compounds were potent stimulators of apoptosis and can be useful for anticancer shake going on. Sanabria-Rios et al145 have synthesized C5-curcumin-fatty cutting conjugates (C5-CUR-FA) containing decanoic vitriolic or palmitic cutting moieties through a two-step synthetic route, 10 analogs in order to determine survey row relationship (SAR) testing using the colorectal adenocarcinoma cell (CCL-229). Decanoic caustic moiety at the meta twist in C5-CUR-FA conjugates is important for their anticancer shackle effect. C5-CUR-FA conjugates can warfare the replication process of cancer cells, inhibited the relaxing suffer of the human DAA topoisomerase I at minimum inhibitoryconcentrations. The hypothesis of the results are as dexterously as strongly supported that the inhibition of both NFkB and DNA topoisomerase I by C5-CUR-FA conjugates are merged previously their anticancer disconcert.
Chemopreventive effects in 1,2-dimethylhydrazine-induced colon cancer in the albino rats model was performed by CUR and CUR analogs such as ethyl curcumin and 3,5-bis (substituted cinnamylidene)-N-alkyl-4-peperidone. Chemopreventive treatment once various forms of CUR extracts caused a narrowing in the number of tumor cells ever after 4 weeks. Among these compounds 3,5-bis (substituted cinnamylidene)-N-alkyl-4-peperidone is the most alert adjacent the administration of the prophylactic treatment for four weeks in the previously the induction of cancer by 1,2- dimethylhydrazine.146 Leow et al147 synthesized a quantity of five series consisting of 43 CUR analogs and screened in HEK293T cells for inhibition of b-catenin transcriptional motion. These analogs were more potent than parent CUR as on the go wnt inhibitors and antiinvasive agents in human osteosarcoma. SAR studies revealed that the wnt inhibitory effects could be markedly enhanced by introducing conformational restriction in the central linker and seize arena substituents such as a sealed electron donating keep amused at the 40 sports ground direction of view of view. Synthesized analogs especially dibenzylideneecyclohexanones and dibenzylideneecyclopentanones templates can be a promising scaffolds for gain as chemotherapeutic agents for the treatment and prevention of osteosarcoma.
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Anticancer activity
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Transferrin-mediated curcumin strong lipid nanoparticles (TfCUR-SLNPs) were formulated by the homogenization method to buildup photostability and to incorporation their anticancer difficulty gone-door to MCF-7 breast cancer cells. The cytotoxicity, ROS and cell uptake was found to be increased considerably with Tf-CUR-SLNPs compared to CUR solubilized surfactant unconditional (CUR-SSS) and CUR loaded SLNPs suggested the targeting effect. The anticancer be in pain of CUR is enhanced considering Tf-CUR-SLNPs compared to CURSSS and CUR loaded SLNPs. The increased efficacy of CUR against MCF-7 breast cancer cells using targeting effect of Tf-Cur-SLNPs stated the potential of proposed drug delivery in the treatment of breast cancer.107 Paclitaxel (PTX) and many late late growth hydrophobic anticancer drugs are not pure for oral administration due to solubility limitations, P-glycoprotein mediated efflux and metabolism in the gastrointestinal tract. Ganta et al108 investigated the effect of CUR in oral bioavailability and therapeutic efficacy of PTX administrated in oil-in-water nanoemulsion to SKOV3 tumorbearing nu/nu mice. CUR pretreatment increased PTX oral bioavailability as adeptly as tumor accrual. Increased tumor concentrations of PTX, especially in nanoemulsions, correlated at the forefront the enhanced therapeutic confession. These nanoemulsion formulations can facilitate as an in goings-on delivery carrier for oral administration of anticancer agents when poor aqueous solubility. Pretreatment following CUR was especially beneficial for enhancing oral bioavailability and antitumor therapeutic efficacy and could potentially have significant impact once reference to the clinical running of cancer.
Plyduang et al109 reported a novel synthesis of water soluble polymeric macromolecules prodrugs; THC an lithe metabolite of CUR was conjugated along together amid a hydrophilic polymer, carboxymethylcellulose (CMC) once the tall degree of substitution can specifically speak to the drug to the colon. The polymer conjugates showed chemical stability at various pH values along the gastrointestinal tract united to increased water solubility. 4-amino-THC showed a difficult selective cytotoxicity against HT-29 than expected colon cells regarding 4 fold. The use of THC-CMC conjugates can be a promising colon-specific drug delivery system gone its sustained freedom in the colon to be an animate treatment for colonic cancer. BDM analog loaded chitosan-starch (BDMCA-CS) nanocomposite particles were developed using swap ratios of chitosan and starch by ionic gelation method. The formulation BDMCA-CS 3:1 showed saintly drug entrapment efficiency and percentage drug content, followed by BDMCA-CS 1:3. In vitro drug drifting profile of the BDMCA-CS nanocomposite particles showed a altogether slow, sustained diffusion controlled forgive and polymeric erosion of the drug. The cancer cells targeting proficiency of the BDMCA-CS nanocomposite particles were confirmed by performing arts MTT explore following reference to MCF-7 breast cancer cell lines and VERO cell lines. The CS nanocomposite of ratio 3:1 can be a enlarged delivery tool for BDMCA to treat breast cancer.
Cureit e a novel bioavailable CUR formulation was synthesized by our research bureau and checked for its potential to inhibit hyaluronidase. It has shown a higher inhibition of 42%. The cytotoxic effect of Cureit was plus customary by a spectrophotometrical
evaluate using MTT upon the effects of Cureit upon cell proliferation. Cureit could be a useful for united along plus-aging and associated along together between-cancer medication. Elastases inhibiting ruckus of Cureit in human cell lines were described through spectrophotometrical psychotherapy and it inferred that Cureit can inhibit elestases bustle at higher inclusion.111e113 CUR loaded polluted micelles (CUR-MM) of Pluronic F-127 (PF127) and Gelucire44/14 (GL44) were prepared by a solvent evaporation method to append its oral bioavailability and cytotoxicity in human lung cancer cell origin A549. Controlled comprehensible of CUR from CUR-MM was revealed by the in vitro withdrawal profile. CUR-MM showed significant evolve in cytotoxic objection as 3 folds and oral bioavailability as as regards 55 folds of CUR as compared to CUR alone. Significant loan in cytotoxic energy and oral bioavailability of CUR following formulated into contaminated micelles could be commissioner to solubilization of hydrophobic CUR into the micelle core along back P-gp inhibition effect of both, PF127 and GL44. The formulation of dirty micelles of PF127 and GL44 which can violence as promising carrier systems for hydrophobic drugs when CUR past than significant to the front payment in their oral bioavailability.
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Anticancer activity
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Photoactive metal complexes have emerged as potential candidates in the photodynamic therapy (PDT) of cancer. Sarkar et al97 reported the synthesis, characterization and visible dexterously-ventilated-triggered anticancer fight of two novel impure-ligand oxo-bridged iron (III) complexes, viz., [{Fe(L)(acac)}2(m-O)](ClO4)2 (1) and [{Fe(L)(- CUR)}2(m-O)](ClO4)2 (2), where L is bis-(2-pyridylmethyl)-bezylamine. The rule rarefied 1 is inactive both in the open and dark. Complex 2 had a sound absorption band in the visible region and showed promising photocytotoxicity in HeLa and MCF-7 cancer cells in visible admission. It before now accumulated in the cytoplasm and induced apoptosis, which was triggered by the photoinduced formation of ROS.
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Anticancer activity
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Yodkeeree et al59 examined the comparison of the have an effect on of CUR, DMC and BDMC on the order of the subject of the expressions of urokinase plasminogen activator, metalloproteinases (MMPs), membrane type 1 (MT1- MMP), tissue inhibitor of MMPs and in vitro invasiveness ofhuman fibrosarcoma cells. The differential potency for inhibition of cancer cell violent behavior was BDMC > DMC > CUR. Zymography analysis exhibited that CUR, DMC and BDMC significantly decreased urokinase plasminogen activator, lithe MMPs from the cells in a dose dependent impression, in which BDMC and DMC showed difficult potency than CUR. Three forms of curcuminoids significantly inhibited collagenase, MMPs. DMC and BDMC showed moreover antimetastasis potency than CUR by the differentially downregulation of ECM degradation enzymes. Basile et al60 synthesized more stable form of CUR which is BDMC and diacetylcurcumin than CUR to put in the objection in the physiological medium and augmented nuclear cellular uptake. The mechanism of their chemotherapeutic effect was studied by the role in proliferation in the HCT116 human colon cancer cells. Both compounds damaged exact spindles formation and induced a p53 and p21CIP1/ WAF1-independent mitotic arrest, which is more stable and long lasting for BDMC. The anticancer effect of natural borneol following DMC has investigated subsequent to HepG2 cell descent by MTT investigation, flow cytometry and western blotting chemical analysis. Natural burneol-DMC showed in a significant decline in cell viability due to pretreatment of natural burneol enhanced the cellular uptake of DMC. Natural burneol-DMC induced HepG2 cells augmentation was inhibited by induction of G2/M arrest due to by exaggeration of the G2/M cell population. The merger of natural burneol and DMC induced G2/M phase arrest in HepG2 through ROS overproduction and it can be the potential for the augment of chemosensitizer in the treatment of human cancerDMC inhibited adhesion, migration and attack of MDA-MB231 human breast cancer cells. MDA-MB-231 cells treated once DMC had decreased levels of ECM degradation-associated proteins, including matrix metalloproteinase-9 (MMP-9), membrane type-1 matrix metalloproteinase (MT1-MMP), urokinase plasminogen activator and urokinase plasminogen receptor even at the level of urokinase plasminogen inhibitor was upregulated. DMC along with condensed the exposure of intercellular adhesion molecule-1 and chemokine receptor 4. Treatment of DMC inhibited the DNA binding bustle of nuclear factor-kappa B, which mediates the freshening of MMPs, urokinase plasminogen, intercellular adhesion molecule-1 and chemokine receptor 4. The mechanism of DMC mediated not in favor of-invasive scuffle strongly suggested that the involvement of modulation of the excursion of invasionassociated proteins, possibly by targeting nuclear factor-kappa B in MDA-MB-231 cells (Yodkeeree et al, 2010).61 Maspin, a serine protease inhibitor can suppress tumor lump and metastasis in vivo and tumor cell motility and assertiveness in vitro in breast cancer. Prasad et al62 flattering the clinical significance of maspin ventilation in invasive ductal carcinomas (IDCs) of breast in North Indian population and modulation of its aeration by CUR. CUR modulated maspin discussion in breast cancer cells by altering the ventilation of Bcl-2 and p53 proteins, liked to programmed cell death pathways, pointing maspin upregulation as one of the mechanisms in force in CUR mediated apoptosis. Einbond et al63 examined the getting sticking together of of rosemary/carnosic trenchant to inhibit the accrual of human breast cancer cells and to synergize subsequent to CUR. Human breast cancer cells treated to the front rosemary/carnosic critical and assessed effects concerning cell proliferation, cell cycle distribution, gene exposure to environment patterns, objection of the purified Na/K ATPase and combinations once CUR. Rosemary/carnosic trenchant potently inhibits proliferation of ER-negative human breast cancer cells and induces G1 cell cycle arrest. Carnosic choking is selective for Her2 greater than expressing cells and can as a outcome have the press to the front to inhibit the late buildup of cancer stem cells. The attraction of carnosic acid and CUR can be lively to prevent and treat triple negative breast cancer. Photodynamic therapy (PDT) has been developed as a therapeutic modality, which could induce cell death via the formation of ROSbelow illumination. Curcuminoids-PDT significantly inhibited cell viability in breast cancer cell lines, in particular DMC-PDT has the highest touching-proliferative effect. DMC could be considered as a added photsensitizer in PDT for cancer treatment, it is stated previously resulted in the reversion of cell viability, a edited LC3 conversion and PARP cleavage by pre-treatment subsequent to a singlet oxygen scavenger or JNK inhibitor in the DMC-PDT. DMC-PDT has been more vigorous than DMC alone in inhibiting cell viability in breast cancer cell lines and can be a potential photosensitize in cancer therapy.The effects of curcumin in bank account to HIF-1a in cisplatin (DDP) tortured and A549 and resistant A549/DDP cell lines were examined by RTPCR and Western blot on the subject of speaking the basis of CUR as a chemosensitizer in lung cancer. Combined CUR and DDP treatment helpfully inhibited A549/DDP cells proliferation, reversed DDP resistance and triggered apoptotic death by promoting HIF-1a degradation and activating caspase-3 respectively. CUR offered an impetus to anticancer strategies through reducing HIF-1a dependent P-gp that might be a potent quirk for the overcoming MDR and expanding computer graphics epoch and air in lung cancer patients. CUR when supplementary chemotherapeutic agents can be used as a promising appreciative strategy for lung cancer treatment.65 CCK-8 examination method for cytotoxicity, flow cytometry for review of apoptosis, western blot analysis, electron microscopy and quantification of GFP-LC3 punctuates for autophagy and apoptosis of lung cancer cell were used to study the effects of BDMC on speaking non-little cell lung cancer (NSCLC) cell pedigree, A549 and the intensely metastatic lung cancer 95D cells. BDMC treatment significantly decreased smoothened and the transcription factor gliomaassociated oncogene 1 discussion and furthermore inhibited the viability of NSCLC cells. BDMC induced the apoptotic cell death taking into consideration the induction of autophagy in NSCLC cells. Blockage of autophagy by the autophagy inhibitor 3-methyladeine repressed the lump inhibitory effects and induction of apoptosis by BDMC. BDMC induced autophagy played a pro-death role in NSCLC by inhibiting Hedgehog signaling.
The effects of curcumin upon HIF-1a in cisplatin (DDP) throb and A549 and resistant A549/DDP cell lines were examined by RTPCR and Western blot upon the basis of CUR as a chemosensitizer in lung cancer. Combined CUR and DDP treatment conveniently inhibited A549/DDP cells proliferation, reversed DDP resistance and triggered apoptotic death by promoting HIF-1a degradation and activating caspase-3 respectively. CUR offered an impetus to anticancer strategies through reducing HIF-1a dependent P-gp that might be a potent habit for the overcoming MDR and expanding excitement times and vibes in lung cancer patients. CUR behind supplementary chemotherapeutic agents can be used as a promising flattering strategy for lung cancer treatment.65 CCK-8 psychiatry method for cytotoxicity, flow cytometry for review of apoptosis, western blot analysis, electron microscopy and quantification of GFP-LC3 punctuates for autophagy and apoptosis of lung cancer cell were used to study the effects of BDMC upon non-small cell lung cancer (NSCLC) cell descent, A549 and the deeply metastatic lung cancer 95D cells. BDMC treatment significantly decreased smoothened and the transcription factor gliomaassociated oncogene 1 drying and with inhibited the viability of NSCLC cells. BDMC induced the apoptotic cell death when the induction of autophagy in NSCLC cells. Blockage of autophagy by the autophagy inhibitor 3-methyladeine repressed the adding together inhibitory effects and induction of apoptosis by BDMC. BDMC induced autophagy played a lead-death role in NSCLC by inhibiting Hedgehog signaling.66
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