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1.
Chinese Pharmacological Bulletin ; (12): 20-25, 2024.
Article in Chinese | WPRIM | ID: wpr-1013594

ABSTRACT

Platelets have long been recognized as key players in hemostasis and thrombosis; however, there is growing evidence that they are also involved in cancer. Preclinical and clinical studies have shown that platelets can promote tumorigenesis and metastasis through various crosstalks between platelets and cancer cells. Platelets play an active role in all stages of tumorigenesis, including tumor growth, tumor cell extravasation, and metastasis. In addition, thrombocytosis in cancer patients is associated with poor patient survival. Platelets are also well-placed to coordinate local and distant tumor-host interactions due to the a- bundance of microparticles and exosomes. Therefore, antitumor drugs targeting platelets have great development and application prospects. The following will review the research progress of anti-tumor drugs targeting platelets.

2.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1450095

ABSTRACT

Introducción: El cáncer de ovario es uno de los tumores más frecuentes y letales entre las mujeres. Esto se debe a su detección en estados tardíos y al desarrollo de quimiorresistencia a la terapia estándar. El desarrollo de terapias dirigidas contra las propiedades distintivas de las células cancerosas y sus características habilitadoras ha surgido como una alternativa promisoria para el tratamiento de estos tumores. Objetivo: Describir las actuales estrategias terapéuticas dirigidas contra las distintas capacidades de las células tumorales en el tratamiento del cáncer de ovario. Método: Se realizó una búsqueda en las bases de datos ScienceDirect, Redalyc, Latindex, ResearchGate, PubMed, Elsevier, ClinicalTrials.gov, SpringerLink, LARVOL´s CLIN, Registro Público Cubano de Ensayos Clínicos, entre enero y abril de 2023. Se seleccionaron 50 artículos referentes al cáncer de ovario y las alternativas para su tratamiento. Desarrollo: Se mencionaron los diversos factores que influyen en la elección de terapias contra el cáncer de ovario. Se describieron las actuales dianas terapéuticas utilizadas en el tratamiento de esta neoplasia, así como el empleo de múltiples fármacos aprobados y en fases de estudio, y las combinaciones sinérgicas de los mismos. Consideraciones finales: Actualmente existen disímiles opciones de tratamiento del cáncer de ovario. A pesar de que la eficacia clínica de los agentes dirigidos todavía está restringida a subtipos moleculares específicos y ningún ensayo ilustra un beneficio en la supervivencia general, son notorios los resultados alcanzados en el desarrollo de fármacos específicamente dirigidos contra la inestabilidad del genoma y angiogénesis sostenida.


Introduction: Ovarian cancer is one of the most common and lethal tumor in women. This happens as a result of late-stage cancer detention and an increased chemoresistance to standard therapy. The current development in therapies to kill the cancer cells and its spread tendencies has emerged as a key alternative to treat tumors. Objective: To describe the current therapeutic strategies lead to confront different capabilities of tumor cells found in the ovarian cancer treatment. Method: A search of literuture was carried out in the following databases ScienceDirect, Redalyc, Latindex, ResearchGate, PubMed, Elsevier, ClinicalTrials.gov, SpringerLink, LARVOL's CLIN, Cuban Public Registry of Clinical Trials, from January to April 2023. A total of 50 text concerning ovarian cancer subject and alternative for treatment were selected. Development: The driving factors that promoted the use of ovarian cancer therapies were pointed out. The current therapeutic targets used in the treatment of this neoplasia were described, as well as the use of multiple approved drugs or in process of approval, including the synergistic drug combinations. Final considerations: There are a lot of options currently being implemented in ovarian cancer treatment. Despite clinical efficacy of targeted therapy, it´s presented still restricted to specific molecular subtypes and none of the assays illustrated survival benefit in general; the results obtained in the process of drugs development specifically targeting genome instability and sustained angiogenesis have been remarkable.


Introdução: O câncer de ovário é um dos tumores mais frequentes e letais entre as mulheres. Isso se deve à sua detecção em estágios tardios e ao desenvolvimento de quimiorresistência à terapia padrão. O desenvolvimento de terapias direcionadas contra as propriedades distintas das células cancerígenas e suas características facilitadoras surgiu como uma alternativa promissora para o tratamento desses tumores. Objetivo: Descrever as atuais estratégias terapêuticas dirigidas contra as diferentes capacidades das células tumorais no tratamento do câncer de ovário. Método: Foi realizada uma busca nas bases de dados ScienceDirect, Redalyc, Latindex, ResearchGate, PubMed, Elsevier, ClinicalTrials.gov, SpringerLink, LARVOL's CLIN, Registro Público Cubano de Ensaios Clínicos, entre janeiro e abril de 2023. 50 artigos referentes ao câncer de ovário e as alternativas para o seu tratamento. Desenvolvimento: Foram mencionados os vários fatores que influenciam a escolha das terapias contra o câncer de ovário. Foram descritos os atuais alvos terapêuticos utilizados no tratamento desta neoplasia, bem como o uso de múltiplas drogas aprovadas e em fase de estudo, e suas combinações sinérgicas. Considerações finais: Atualmente existem opções de tratamento dissimilares para o câncer de ovário. Apesar de a eficácia clínica dos agentes direcionados ainda estar restrita a subtipos moleculares específicos e nenhum ensaio mostrar benefício na sobrevida global, são notáveis os resultados alcançados no desenvolvimento de fármacos direcionados especificamente contra a instabilidade do genoma e a angiogênese sustentada.

3.
Chinese Journal of Lung Cancer ; (12): 541-545, 2022.
Article in Chinese | WPRIM | ID: wpr-939744

ABSTRACT

In 2019, Drug Administration Law of China was first time proposed that the country should establish pharmacovigilance system. In 2021, the first Pharmacovigilance Quality Management Standard of China was released. The proposal and implementation of pharmacovigilance were the initial stage in China, and it needed to improve the aspects of pharmacovigilance include institution, monitoring mechanism and database construction. The number of new diagnosed cancer patients in China ranked first in the world. In recent years, the marketing speed of novel antitumor drugs was accelerated, and there were many clinical trials. Therefore, antitumor pharmacovigilance was imperative. In this article, we summarized pharmacovigilance of the origin, clinical practice objectives, procedures, methods. We described the difficulties in antitumor pharmacovigilance and current characteristics of pharmacovigilance in China, aiming to provide reference for the development of antitumor pharmacovigilance.
.


Subject(s)
Humans , China , Lung Neoplasms , Pharmacovigilance
4.
China Pharmacy ; (12): 975-986, 2022.
Article in Chinese | WPRIM | ID: wpr-923601

ABSTRACT

OBJECTIVE To explore the merging methods and influencing factors of health state disutility values estimation. METHODS Retrieved from 6 Chinese and English databases such as CNKI and PubMed ,the literatures about disutility values of diarrhea caused by antitumor drugs were collected from the inception to July 2021. After 2 researchers independently screened the literature,extracted the data ,assessed the quality ,the Meta-analysis and regression analysis were conducted using Stata 16.0 software. RESULTS Fifteen literatures were included. The results of Meta-analysis showed that diarrhea caused by antitumor drugs had a significant impact on health utility [ MD=-0.26,95%CI(-0.30,-0.22),P<0.05]. The results of subgroup analysis showed that the disutility values of the 3 types of negative value ,non-negative value changed into negative value ,and non-negative value combined with basic state changed into to negative value were MD =-0.14,95%CI(-0.19,-0.09);MD=-0.46,95%CI (-0.56,-0.36);MD=-0.12,95%CI(-0.20,-0.05),respectively. Meta regression results showed that the year of publication , survey country/region ,severity of adverse events ,basic state settings ,utility estimation tools ,utility report types ,and utility statistical methods significantly affected the value of diarrhea disutility (P<0.05). CONCLUSIONS Disutility values for treatment-related symptoms or complications should be fully considered when inputting the parameters to the economic evaluation model. In the study or application of disutility values ,the types of utility reports should be distiguished ,and the core influencing factors such as the investigation country or region ,the severity of symptoms or complications ,and whether the basic state is set should be focus on.

5.
China Pharmacy ; (12): 739-745, 2018.
Article in Chinese | WPRIM | ID: wpr-704666

ABSTRACT

OBJECTIVE:To provide reference for confirming the protective effect of the establishment of PIVAS on antineoplastic drugs(ADs)occupational exposure to nursing staff in clinical departments,and to provide the basis for the formulation of ADs dispensing guideline and occupational exposure protection regulations. METHODS:By questionnaire survey and deriving data of lab examination index,the occurrence of abnormal menstruation,bad birth outcome,alopecia,blood toxicity, liver and renal toxicity in nursing staff of clinical departments with different ADs contact frequencies(non-exposure group as group A,low-exposure group as group B,high-exposure group as group C)were investigated and analyzed in our hospital before and after the establishment of PIVAS. The residual of ADs [methotrexate(MTX)and 5-Fluorouracil(5-FU)] in PIVAS environment were investigated by HPLC. RESULTS:A total of 160 questionnaires were sent out before the establishment of PIVAS,and 151 were effectively collected with effective recovery of 94.38%. After the establishment of PIVAS,150 questionnaires were sent out,and 144 were effectively collected with effective recovery of 96.00%. Questionnaire results showed that the incidence of abnormal menstruation,abnormal menstruation period,dysmenorrhea,spontaneous abortion,infertility and offspring low birth weight,the severity of hair loss in group C were significantly higher than group A,with statistical significance(P<0.05 or P<0.01). The incidence of above 6 conditions in group C were 5.14,6.10,3.81,4.04,6.15,8.08 times higher than in group A.At same time, the incidence of the offspring low birth weight and the severity of hair loss in group B were significantly higher than group A,with statistical significance(P<0.05 or P<0.01);the incidence of the former in group B was 6.21 times higher than in group A.After the establishment of PIVAS,the incidence of abnormal menstruation,abnormal menstruation period,dysmenorrhea,spontaneous abortion,infertility and offspring low birth weight,the severity of hair loss were decreased significantly in group C,with statistical significance(P<0.05). The severity of hair loss in group C was significantly higher than group A,and there was no statistical significance in above indexes,compared with group A(P>0.05). At the same time,there was no statistical significance in the incidence of the offspring low birth weight and the severity of hair loss between group B and A(P>0.05). Results of lab examination index investigation showed that before the establishment of PIVAS,WBC and PLT of group C were significantly lower than group A,and the incidence of abnormal liver function was significantly higher than group A,with statistical significance(P<0.05 or P<0.01). After the establishment PIVAS,WBC,PLT and RBC of group C,and PLT of group B were increased significantly compared to before the establishment PIVAS;the incidence of abnormal liver function in group C was decreased significantly compared to before the establishment PIVAS,with statistical significance(P<0.05 or P<0.01). There was no statistical significance in above indexes between group C and A(P>0.05),and PLT of group B was even significantly higher than group A(P<0.05). Results of investigation of ADs residues in PIVAS environment showed that there were different degrees of MTX and 5-FU residue on the surface of different objects. The residues of ADs from high to low were biological safety cabinet worktops,the floor just below biological safety cabinet,transfer box,transfer window and door handle and infusion bags. CONCLUSIONS:Nursing staff of clinical department with high ADs contact frequency face higher relevant health risks. The establishment of PIVAS can effectively protect the ADs occupational exposure of nursing staff in clinical departments,thereby reducing the above risks.At the same time,there are still different degrees of ADs residues on the surface of different objects in the PIVAS environment,and transshipment out of PIVAS is possible. It is suggested that the awareness of protection against occupational exposure risk caused by ADs residues in PIVAS environment should be improved;unified guideline for ADs dispensing and occupational exposure protection regulations should be formulated as soon as possible,so as to reduce occupational exposure risk associated with ADs for nursing staff in PIVAS and clinical departments.

6.
China Pharmacy ; (12): 3627-3631, 2017.
Article in Chinese | WPRIM | ID: wpr-607180

ABSTRACT

OBJECTIVE:To analyze the clinical application and trend of antitumor drugs in 42 hospitals from Beijing,Shang-hai and Chengdu,and to provide reference for rational drug use in clinic. METHODS:The utilization of antitumor drugs in 42 hos-pitals from Beijing,Shanghai and Chengdu during 2012-2016 was analyzed statistically in respects of consumption sum,DDDs. RESULTS:The consumption sum of antitumor drugs in 3 cities,Beijing ranked the first;annual growth rate of Shanghai was the highest. In the list of consumption sum of antitumor drugs of 3 cities in 5 years,immunosuppressive agents as tacrolimus,mycophe-nolate mofetil were among top 10 antitumor drugs in the list of consumption sum. Top 1 antitumor drug in the list of consumption sum in Beijing,Shanghai and Chengdu were thymopentin,tacrolimus and thymalfasin,respectively. Among subtype of antitumor drugs,other antitumor drugs and adjuvant drugs in Beijing and Chengdu during 2012-2014 took up the first place in the list of con-sumption sum;the consumption sum of antimetabolite during 2015-2016 occupied the first place,and that of Beijing was higher than that of Chengdu. The cost of antimetabolite in Shanghai during 2012-2016 was the highest. The consumption sum of other antitumor drugs and adjuvant drugs were the highest in 3 cities during 2012-2014;that of antimetabolite was the highest during 2015-2016. Among related drugs,immune enhancer,immunosuppressive agents and analgesics ranked the top in the list of consumption sum. Among top 10 antitumor drugs in the list of DDDs,most were antineoplastic medicine,and only cyclophosphamide among alkylat-ing agents entered the ranking. CONCLUSIONS:The growing trend of antitumor concumption sum is stable. Antimetabolite,hor-mones and plant-derived antitumor are becoming larger. Molecular targeted therapies have a good prospect for application.

7.
China Pharmacy ; (12): 3532-3534, 2016.
Article in Chinese | WPRIM | ID: wpr-504956

ABSTRACT

OBJECTIVE:To effectively control the quality of intravenous infusion product of antitumor drugs in PIVAS,and to guarantee the safety of clinical drug use. METHODS:According to the operation flow of intravenous infusion product,the quality control of anti-tumor drugs was conducted in PIVAS of our hospital from three aspects,i.e. before,during and after admixture. The improvement effect was compared before and after the implementation. RESULTS:Pre-admixture management was carried out through special classification management and medical order check management for antitumor drug;intra-admixture management was carried out through the management of admixture environment,solvent selection,admixture method,order for adding drug, dosage;post-admixture management was carried out through standard examination of infusion product and the management of deliv-ery time and condition. 5 months later,the times of communication between PIVAS and clinical departments was decreased from 30 times to 10 times,and the incidence of infusion product was decreased from 0.68% to 0.18%. CONCLUSIONS:Standard man-agement has been conducted for operation procedure of anti-tumor drugs before,during and after admixture. The quality of intrave-nous infusion product of antitumor drugs can be effectively controlled to ensure the safety of clinical drug use.

8.
Journal of International Oncology ; (12): 274-277, 2016.
Article in Chinese | WPRIM | ID: wpr-493145

ABSTRACT

Forkhead box M1 (FOXM1),one member of the Forkhead family,plays an important role in tumor development,invasion,metastasis and angiogenesis by regulating the expression of tumor related genes.Moreover,The specific mechanism of FOXM1 is not fully understood in the development of tumors.Currently,the study of anticancer drugs targeting FOXM1 is in the initial stage.Exploring the mechanism of FOXM1 in carcinogenesis and the development of drugs targeting FOXM1 and its downstream signaling pathways have broad clinical application prospects.

9.
Article in English | IMSEAR | ID: sea-179890

ABSTRACT

Aim: We examine in this study the effect of two antitumor drugs metothrexate (MTX) and carboplatin (CPT) on the phospholipid content of plasma membrane of MCF-7 breast cancer cells. MTX is a folate analog that inhibit dihydrofolate reductase. CPT is a platinum-containing antineoplastic drug that inter-chelates DNA and inhibits replication. Methods: MCF-7 breast cancer cells were treated with different concentrations of CPT or MTX. Plasma membranes were purified and their protein contents were measured with and without drug treatment. We extracted the lipids from plasma membranes of drug-treated and control MCF-7 cells, quantitated, and separated by HPLC using a C18 reverse-phase column. The ability of both drugs to affect cell movement was studied using a motility assay. Results: MTX induced 50% cell death at concentrations ranging from 50 to 100 mM. No further decrease in viability was seen above this concentration even at 1 mM. CPT induced 50% cell death at 5 mM. It also showed a range concentration that gives a 50% cell death after 24 hrs of incubation. Protein levels in plasma membranes of treated cells doubled compared to control. Lipid levels in plasma membranes decrease insignificantly after drug treatment. No changes in separation pattern of lipid extracted from membranes were seen after CPT treatment compared to control; however, MTX treatment showed to a single change in elution pattern in peak at 4.36 min. Both drugs had little effect on cell motility causing a decrease of 13.3% and 17.4% with CPT and MTX respectively compared to control. Conclusions: Our results show that both drugs did not affect the amount of lipids but lead to doubling in the protein concentration in the plasma membranes of MCF-7 breast cancer cells. These drugs did not lead to a significant decrease in cell motility compared to control.

10.
Indian J Exp Biol ; 2014 Jun; 52(6): 579-588
Article in English | IMSEAR | ID: sea-153736

ABSTRACT

The interaction of a newly synthesized antitumor complex cis-dichloro-1,2-propylenediamine-N,N,N',N'-tetraacetato ruthenium (III) (RAP) with DNA was investigated in vitro through a number of techniques including comet assay, immunoprecipitation, and immunolocalization of certain nucleolar proteins (the upstream binding factor (UBF) and fibrillarin) involved in DNA transcription, rRNA processing, and ribosomal assembly. The results showed that RAP binds to the DNA of two cell lines (H4 and Hs-683) causing a delay in cell proliferation rate leading to a number of cellular modifications. These modifications include DNA-damage assessed by the single cell gel electrophoresis method (comet assay) and variation in the expression of nucleolar proteins; UBF was more abundant in RAP treated cells, this was explained by the high affinity of this protein to DNA modified by RAP. On the other hand, fibrillarin was found in less quantities in RAP treated cells which was explained by a de-regulation of the ribosomal machinery caused by RAP.


Subject(s)
Antineoplastic Agents/pharmacology , Cell Line, Tumor , DNA Damage , Drug Evaluation, Preclinical , Humans , Nuclear Proteins/metabolism , Organometallic Compounds/pharmacology , Protein Transport/drug effects , RNA Processing, Post-Transcriptional/drug effects , Tissue Distribution/drug effects , Transcription, Genetic/drug effects
11.
Journal of Leukemia & Lymphoma ; (12): 385-389, 2012.
Article in Chinese | WPRIM | ID: wpr-471316

ABSTRACT

Intensive multidrug regimens,such as rituximah plus fractionated cyclophsphamide,vincristine,doxorubicin,and dexamethasone(R-HyperCVAD),are now being used to improve outcomes in patients with mantle cell lymphoma(MCL).In addition to these combinations,novel targeted agents,including bortezomib,bendamustine,and lenalidomide,are also being integrated into the treatment paradigm.Given the wide array of therapies available,making and implementing treatment decisions has become a complex process,requiring interdisciplinary collaboration.This article discussesed the pharmacist's role in this collaboration,as well as the administration of standard and novel therapies for MCL and the management of treatment related toxicities.

12.
Univ. med ; 50(3): 284-296, jul.-dic. 2009. tab, ilus
Article in Spanish | LILACS | ID: lil-601527

ABSTRACT

El estudio del perfil de expresión génica en las células eucariotas se constituye como una herramienta importante en el entendimiento de las huellas moleculares generadas en respuesta a un estímulo farmacológico. A partir de Petiveria alliacea, una de las plantas colombianas con actividad antitumoral, se ha obtenido la fracción FAST 8 7:3, en la cual se han encontrado diferentes compuestos, como el trisulfuro de dibencilo, uno de los componentes antitumorales más potentes reportados para la planta. Esta fracción también posee actividad citotóxica sobre la línea de células tumorales K562 e induce cambios en el perfil de expresión de genes, que podrían estar relacionados de alguna forma con la actividad antitumoral tradicional reportada para esta planta. Esta actividad puede ser ejercida, en parte, por la presencia del trisulfuro de dibencilo y por la actividad de los otros componentes de la fracción. En este contexto, proponemos el uso del ADNc-AFLP como herramienta útil en la tamización del perfil de genes transcritos en las células tumorales y, también, como herramienta útil para el descubrimiento de nuevos fármacos antitumorales...


Abstract Gene expression profile in eukaryotic cells is a very useful tool to understand the molecular footprint responsible for the pharmacological response to a stimulus. In the present study a fraction named FAST 8 (7:3), obtained from Petiveria alliacea, was used as stimulus to track out the gene expression profile on K562 cell line. P. alliacea is a plant that grows in Colombia, and in traditional medicine is used for its anti-tumoral activity. Of the different compounds present in the fraction, dibenzyl trisulfide (DTS), is a compound described by previous reports to have anti-tumoral properties. The fraction exhibits cytotoxic activity over tumor cell line K562 inducing changes in gene expression profile. DTS might be in part responsible for the fraction activity, but the other compounds may also contribute to the biological response. Herein, we propose the use of cDNAAFLP as a useful tool for gene expression profile screening of tumoral cells and in the discovery of new anti-tumoral drugs...


Subject(s)
Eukaryotic Cells , Pharmaceutical Preparations
13.
Chinese Journal of Pharmacoepidemiology ; (4)2006.
Article in Chinese | WPRIM | ID: wpr-683538

ABSTRACT

Objective:To analyze the infectious ODDS risks of anticancer plant alkaloids and other anticancer drugs in GI cancer patients with chemotherapy regiments.Method:2384 profiles of cancer patients agreeable with studying condition were collected.All the profiles were evaluated with different variants,and then these variants were analyzed with the logistic liner.Result:The line values of ages,days in hospital,insurances,alkylating agents,platinum antitumor com- pounds and other antitumor drugs were 0.010,0.147,-0.361,-0.930,-0.390,and-1.306.Conclusion:The infection OR of the ages and days in hospital increased OR factors and the medical insurances decreased OR factors.Antitumor antibiot- ics,antimetabolites,plant alkaloids had their higher infectious risks than platinum antiturnor compounds,alkylating agents and other antitumor drugs did in GI cancer patients with chemotherapy regiments.

14.
China Pharmacy ; (12)2005.
Article in Chinese | WPRIM | ID: wpr-532438

ABSTRACT

OBJECTIVE:To investigate the utilization of antitumor drugs in a hospital. METHODS: By a retrospective study, the consumption sum and DDDs etc of antitumor drugs in a hospital during the period 2003~2007 were analyzed statistically. RESULTS: The proportion of the consumption sum of antitumor drugs in the total increased year on year, but the DDDs of antitumor drugs decreased in 2007, leading the list in terms of consumption sum and DDDs over the 5 years were antitumor assistant drugs, of which, the antitumor herbal medicine assumed a tendency of latecomer surpassing the early starters. CONCLUSION: There is great potential to develop antitumor assistant drugs and antitumor herbal medicine of good quality and low prices.

15.
China Pharmacy ; (12)2005.
Article in Chinese | WPRIM | ID: wpr-529246

ABSTRACT

OBJECTIVE:To study the current situation on the research of pharmacoeconomics of antineoplastics.METHO-DS:The pharmacoeconomic research papers on antitumor drugs published in domestic academic magazines over the 10 years ever since 1995 were evaluated by tabulating of the items.RESULTS:Only a preliminary pharmacoeconomic study on antitumor drugs has been done,however,which are far from standardized and perfect.CONCLUSION:The pharmacoeconomic study on antitumor drugs in itself has its complexity,which should be standardized so as to make the study results applicable further.

16.
Experimental & Molecular Medicine ; : 326-331, 2002.
Article in English | WPRIM | ID: wpr-203705

ABSTRACT

Telomeres are the ends of the linear chromosomes of eukaryotes and consist of tandem GT-rich repeats in telomere sequence i.e. 500-3000 repeats of 5'-TTAGGG-3' in human somatic cells, which are shortened gradually with age. The G-rich overhang of telomere sequence can adopt different intramolecular fold-backs and tetra-stranded DNA structures, in vitro, which inhibit telomerase activity. In this report, DNA binding agents to telomere sequence were studied novel therapeutic possibility to destabilize telomeric DNA sequences. Oligonucleotides containing the guanine repeats in human telomere sequence were synthesized and used for screening potential antitumor drugs. Telomeric DNA sequence was characterized using spectral measurements and CD spectroscopy. CD spectrum indicated that the double-stranded telomeric DNA is in a right-handed conformation. Polyacrylamide gel electrophoresis was performed for binding behaviors of antitumor compounds with telomeric DNA sequence. Drugs interacted with DNA sequence caused changes in the electrophoretic mobility and band intensity of the gels. Depending on the binding mode of the anticancer drugs, telomeric DNA sequence was differently recognized and the efficiency of cleavage of DNA varies in the bleomycin-treated samples under different conditions. DNA cleavage occurred at about 1% by the increments of 1 mM bleomycin-Fe(III). These results imply that the stability of human telomere sequence is important in conjunction with the cancer treatment and aging process.


Subject(s)
Humans , Antineoplastic Agents/metabolism , Bleomycin/metabolism , Circular Dichroism , Comparative Study , DNA/chemistry , DNA Damage , Dactinomycin/metabolism , Doxorubicin/analogs & derivatives , Nogalamycin/metabolism , Nucleic Acid Conformation , Repetitive Sequences, Nucleic Acid , Telomere/drug effects
17.
China Pharmacy ; (12)2001.
Article in Chinese | WPRIM | ID: wpr-531988

ABSTRACT

OBJECTIVE:To analyze the characteristics and genernal patterns of adverse drug reactions(ADR)induced by antitumor drugs.METHODS:112 ADR cases induced by antitumor drugs included in CNKI from 2003 to 2007 were analyzed statistically in respect of patients' age and sex,primary diseases,drug categories,organs and systems involved and the clinical manifestations etc.RESULTS:Of the total 112 cases,patients aged from 51 to 60 years showed the highest incidence of ADR,accouting for 31.3%,and Platinum antitumor drugs showed the highest incidence of ADR,accounting for 36.6%.The most common presentation of ADR was lesion of nervers system(41.1%),followed by lesions of respirotory system(32.1%)and skin and the appendants(28.6%).CONCLUSION:Awareness on the reporting of ADR induced by antitumor drugs should be strengthened and the characteristics of the ADR should be analyzed to ensure clinical safe and rational use of antitumor drugs and avoid or reduce the incidence of ADR.

18.
Traditional Chinese Drug Research & Clinical Pharmacology ; (6)1993.
Article in Chinese | WPRIM | ID: wpr-573514

ABSTRACT

Objective To observe the preventive and therapeutic effect of Ka ng laite Injection (KI) on acute nephrotoxicity in rats induced by cisplatin (DDP) and gemzar.Methods Forty SD rats, male and female in a half, were randomized in to normal control group, KI group, DDP+ Gemzar group and KI+ DDP+ Gemzar gro up, 5 male and 5 female in each group. The KI+ DDP+ Gemzar group were given K I 10 mL/kg first,DDP injection 6 mg/kg 2 hours later and Gemzar injection 90 mg/ kg 4 hours later. After treatment, acute nephrotoxicity was observed.Results On e week after treatment, all of the rats survived; the body weight of the male an d female rats in group was similar in KI group and in the normal control group, but lower in DDP+ Gemzar group, in particular the male rats, than that in norma l control group. Body weight in KI+ DDP+ Gemzar group was lower than that in the normal control group but higher than that in DDP+ Gemzar group.The serum le vels of biochemical parameters were similar in KI group and the normal control g roup; serum levels of total protein (TP) and albumin(ALB) were markedly lower bu t those of blood urea nitrogen (BUN) and creatine (CRE) higher in DDP+ Gemzar g roup than those in the normal control group; the above indexes were improved in KI+ DDP+ Gemzar group as compared with those in DDP+ Gemzar group and arrive to the normal level.Conclusion KI has preventive and therapeutic effect on acu te nephrotoxicity in rats induced by DDP and Gemzar.

19.
Chinese Pharmacological Bulletin ; (12)1986.
Article in Chinese | WPRIM | ID: wpr-553868

ABSTRACT

The number of projects from free applications of the national natural science foundation of China (NSFC) about pharmacology of antitumor drugs in 2001 increased evidently than before. Those projects were mainly about the exploration of the natural materials with antitumor activity, investigation in new targets of antitumor drugs, study in the inhibition of angiogenesis in tumor cells,etc. The tumor pharmacology in China has made some progress, but it still lags much behind the international study level. Basic work and creative ideas should be strengthened for further development.

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