scholarly journals Evaluation of Cytotoxicity and Genotoxicity of Micromeria pulegium (Rochel) Benth Extract in Human Lymphocytes and Gr-M Melanoma Cells in vitro

2018 ◽  
Vol 2 (1) ◽  
pp. 25 ◽  
Author(s):  
Anja Haverić ◽  
Jasmina Čakar ◽  
Maida Hadžić ◽  
Sanin Haverić

Micromeria pulegium (Rochel) Benth. is an endemic species of Lamiacea family that includes frequently used plants in culinary and folk medicine. As cytotoxic potential of some species of Micromeria genus has been confirmed, this study aimed to test unknown antiproliferative and genotoxic potential of M. pulegium, endemic bh species, aqueous leaf extract in normal (human lymphocytes) and cancer (human melanoma GR-M) cells in order to protect small populations of native M. pulegium populations or promote its controlled micropropagation or cultivation. Cytokinesis-block micronucleus cytome assay was applied for human lymphocyte cultures, while trypan blue exclusion assay was used for evaluation of cytotoxicity in human GR-M melanoma cells. Results demonstrate no genotoxic effects up to concentration of 0.2 mg/ml in human lymphocyte in vitro but significant reduction of cell viability in human GR-M melanoma cell line cultures treated with 0.3 mg/ml of Micromeria extract.

Author(s):  
M. Kinan Aljaja ◽  
Adawia Kitaz ◽  
Raghda Lahdo

Background: Onopordum carduiforme, Centaurea verutum, and Achillea santolina are medicinal plants grown in Syria and commonly used in traditional medicine. Such as antibacterial, antioxidant and anticancer properties. However, the genotoxic effects of these plants have not been studied. Aim and objective: the aim of this study was to evaluate the genotoxic effects of hydroethanolic extracts of these plants on human lymphocyte cultures model by evaluating the cell proliferation, determination of mitotic index (MI), and their effects on chromosomes. Methods: the hydroethanolic extracts of the aerial parts of the three plants were extracted using an Ultrasonic bath. Then the genotoxic effects of hydroethanolic extracts of these plants on human lymphocyte cultures was conducting by determination of mitotic index (MI). Results: the results showed that all three plants decreased non-significantly the mean of mitotic index in comparison with negative control (normal MI) (p>0.05) at concentrations (1, 3, 5 mg/ml) and the mitotic index values ranged was between (2.25±0.07 and 3.3±0.28). However, C. verutum showed the lowest mitotic index (3±0.14 at 1 mg/ml) and (2.25±0.07 at 5 mg/ml), and did not induce chromatid or chromosome breaks or gaps. Conclusion: these preliminary results on cytotoxicity and mutagenicity of these plants provide valuable information about the safety of using them in alternative medicine.                    Peer Review History: Received: 11 November 2021; Revised: 13 December; Accepted: 28 December, Available online: 15 January 2022 Academic Editor:  Dr. A.A. Mgbahurike, University of Port Harcourt, Nigeria, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency.  Received file:                Reviewer's Comments: Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 7.0/10 Reviewers: Ahmad Najib, Universitas Muslim Indonesia, Makassar, Indonesia, [email protected] Dr. Dennis Amaechi, MrsFoluBabade Mini Estate , Flat 5 by Old Soldiers Quarter, Sabongari/Bwari, Abuja- Federal Capital Territory, Nigeria. [email protected]  Dr. Sangeetha Arullappan, Universiti Tunku Abdul Rahman, Malaysia, [email protected] Similar Articles: A STUDY ON DIFFERENT PLANTS OF APOCYNACEAE FAMILY AND THEIR MEDICINAL USES STUDY LITERATION OF CHEMICAL CONTENTS OF SOME PLANTS THAT POTENTIALLY AS THE SOLAR SOWS EXPLORING THE ANTIPARASITIC ACTIVITY OF MEDICINAL PLANTS


2019 ◽  
Vol 69 (4) ◽  
pp. 426-433
Author(s):  
Radislava Teodorović ◽  
Vladimir Drašković ◽  
Spomenka Đurić ◽  
Kartarina Nenadović ◽  
Milorad Mirilović ◽  
...  

Abstract In this investigation, the genotoxic properties of mestranol were examined in vitro. Human lymphocyte cultures were exposed for 72 h to mestranol at concentrations of 7.5, 15 and 30 µg/g. The genotoxic effects of the chemosterilant were assessed by numerical and structural chromosome aberrations. Mestranol induced certain genotoxic effects in human lymphocytes. There was a dose-dependent significant (p<0.01) increase in the number of numerical aberrations in comparison to the control, but without significant differences (p>0.05) between the doses applied. Further, structural aberrations increased significantly (p<0.01) in the presence of mestranol, being most frequent in cultures exposed to the highest mestranol dose. The frequency of Robertsonian translocations increased significantly only in cultures treated with mestranol at concentration of 30 µg/g in comparison both with the control (p<0.01) and the lowest chemosterilant dose (p<0.01). There were significant differences (p<0.01) in the levels of chromosome gaps and fragments compared to Robertsonian translocations, whilst the frequencies between gaps and fragments were not significantly different (p>0.05).


2016 ◽  
Vol 67 (2) ◽  
pp. 116-125 ◽  
Author(s):  
Rafael Valencia-Quintana ◽  
Sandra Gómez-Arroyo ◽  
Juana Sánchez-Alarcón ◽  
Mirta Milić ◽  
José Luis Gómez Olivares ◽  
...  

AbstractThis study evaluated direct and metabolic genotoxic effects caused by Lannate-90®, a methomyl-based formulation (90 % active ingredient), in human lymphocyte cultures using sister chromatid exchange assay (SCE). Two processes were used for the plant promutagens evaluation: in vivo activation, applying the insecticide systemically in plants for 4 h and subsequently adding plant metabolites containing extracts to lymphocyte cultures; and in vitro activation, where the insecticide was incubated with Vicia faba S10 mix plus human lymphocyte culture. Direct treatment with the insecticide significantly increased SCE frequency in human lymphocytes (250-750 mgL−1), with cellular death observed at 1000 mgL−1 concentration. Using the extracts of Vicia faba treated with Lannate-90® to treat human lymphocytes, a dose-response relationship was observed. In lymphocyte cultures treated directly with the insecticide for 2 h, a negative response was obtained. When S10 mix was added, SCE frequency did not change significantly. Meanwhile, a mixture of S9 mammalian metabolic mix and Lannate-90® increased the SCE frequency, with an observed concentration-dependent response. Although Lannate-90® induced cellular death at the highest concentrations, it did not cause a delay in cell proliferation in any of the treatments, confirming its genotoxic action. This study is one of the first to evaluate and compare the direct effect of Lannate-90® in two bioassays, animal and vegetal, and the effect of plant and animal metabolism on its genotoxic potential.


2002 ◽  
Vol 49 (1) ◽  
pp. 145-155 ◽  
Author(s):  
Janusz Błasiak ◽  
Ewa Gloc ◽  
Mariusz Warszawski

Idarubicin is an anthracycline antibiotic used in cancer therapy. Mitoxantrone is an anthracycline analog with presumed better antineoplastic activity and lesser toxicity. Using the alkaline comet assaywe showed that the drugs at 0.01-10 microM induced DNA damage in normal human lymphocytes. The effect induced by idarubicin was more pronounced than by mitoxantrone (P < 0.001). The cells treated with mitoxantrone at 1 microM were able to repair damage to their DNA within a 30-min incubation, whereas the lymphocytes exposed to idarubicin needed 180 min. Since anthracyclines are known to produce free radicals, we checked whether reactive oxygen species might be involved in the observed DNA damage. Catalase, an enzyme inactivating hydrogen peroxide, decreased the extent of DNA damage induced by idarubicin, but did not affect the extent evoked by mitoxantrone. Lymphocytes exposed to the drugs and treated with endonuclease III or formamidopyrimidine-DNA glycosylase (Fpg), enzymes recognizing and nicking oxidized bases, displayed a higher level of DNA damage than the untreated ones. 3-Methyladenine-DNA glycosylase II (AlkA), an enzyme recognizing and nicking mainly methylated bases in DNA, increased the extent of DNA damage caused by idarubicin, but not that induced by mitoxantrone. Our results indicate that the induction of secondary malignancies should be taken into account as side effects of the two drugs. Direct strand breaks, oxidation and methylation of the DNA bases can underlie the DNA-damaging effect of idarubicin, whereas mitoxantrone can induce strand breaks and modification of the bases, including oxidation. The observed in normal lymphocytes much lesser genotoxicity of mitoxantrone compared to idarubicin should be taken into account in planning chemotherapeutic strategies.


The Lancet ◽  
1985 ◽  
Vol 326 (8469-8470) ◽  
pp. 1422-1423 ◽  
Author(s):  
DonaldR. Hicks ◽  
LindaS. Martin ◽  
JaneP. Getchell ◽  
JanetL. Heath ◽  
DonaldP. Francis ◽  
...  

Blood ◽  
1966 ◽  
Vol 28 (2) ◽  
pp. 163-174 ◽  
Author(s):  
CARL J. HEDESKOV ◽  
VIGGO ESMANN

Abstract The metabolism of intact, normal, human lymphocytes in vitro was studied from a total of 80 subjects. Corrected for the metabolism of contaminating red blood cells, the glucose uptake, lactic acid production, and oxygen consumption were 62, 95, and 117 µmoles per 1010 lymphocytes per hour, respectively, provided the cells were incubated at concentrations greater than 40 x 106 lymphocytes per ml. At lower lymphocyte concentrations the oxygen consumption per lymphocyte rose steeply with decreasing cell concentration (crowding effect). A similar but weaker crowding effect was noted for the lactic acid production, but not for the utilization of glucose. The oxygen uptake was lower with 20 per cent than with 100 per cent oxygen as gas phase. Small Pasteur and Crabtree effects were demonstrated. The oxygen consumption and lactic acid production proceeded linear with time, while the glucose utilization was higher during the first 30 minutes of incubation than later on. It is concluded that lymphocytes have a low aerobic glycolysis accounting for 75 per cent of the glucose utilization. The respiration is severely inhibited at high cell concentrations and it is suggested that this is caused by an insufficient availability of oxygen to the cells.


1980 ◽  
Vol 66 (4) ◽  
pp. 425-430 ◽  
Author(s):  
Paolo Perocco ◽  
Angela Fini

The action of dichlorvos (2.2-dichlorovinyldimethyl phosphate) was studied with a short-term in vitro system which utilizes human lymphocytes. The parameters studied were the action exerted by the pesticide on scheduled (semiconservative) and unscheduled (reparative) DNA synthesis measured as tritiated thymidine uptake. The results obtained show that dichlorvos affects semiconservative DNA synthesis, damages human lymphocyte DNA inducing low reparative synthesis, and interferes with DNA repair processes after damage exerted by ultraviolet rays.


1983 ◽  
Vol 41 (3) ◽  
pp. 1226-1233 ◽  
Author(s):  
P J Converse ◽  
A D Hess ◽  
P J Tutschka ◽  
G W Santos

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