The sensitivity of PCR was determined for detection of HBV DNA in paraffin-embed-ded liver tissue with different methods for sample preparation.Of 8 cases of HBeAg-positiveHBV infection,HBV DNA was detected in 6 by ex...The sensitivity of PCR was determined for detection of HBV DNA in paraffin-embed-ded liver tissue with different methods for sample preparation.Of 8 cases of HBeAg-positiveHBV infection,HBV DNA was detected in 6 by extracting DNA from both frozen and dewaxedsamples,but in none by direct reaction.Of 12 cases subjected to Southern blot hybridization,HBV DNA was detected in 7 by this technique,in 10 by PCR with both methods of DNA extrac-tion and in 3 by direct PCR.The results showed that PCR was sensitive and was comparablewith blot hybridization in detecting intrahepatic HBV DNA.In comparison between differentmethods of sample preparation,the viral detection rate from the dewaxed samples was near thatfrom the frozen ones,while by the direct reaction HBV DNA could be detected only in a fewsamples with high level of infection.展开更多
The special primers Of p53 exon 7 as wed as HPV16 E6 and E7 ORFs (Opening Rending Frame) were used with PCR, PCR-SSCP technique, and 35 specimens of cervical carcinoma were examined. The results were as follows: ① H...The special primers Of p53 exon 7 as wed as HPV16 E6 and E7 ORFs (Opening Rending Frame) were used with PCR, PCR-SSCP technique, and 35 specimens of cervical carcinoma were examined. The results were as follows: ① HPV16 E6, E7 DNA was found in 25/35 specimens (71. 4%),which proved again HPV16 Infection an important event in cervical carcinogenesis. However only 11/35 (31.42% ) bad E6 and E7 ORFs simultaneously, 3/35 (8. 57%) and 11/35 (31. 42% ) had only E6 or E7 respectively. ② No mutation and LOH (Loss of Heterozygote) of p53 exon 7 were found in allof 35 specimens. Additionally in the present study, we developed a non-isotopic PCR-SSCP method.展开更多
AIM:To investigate the relationship between human papillomavirus (HPV) infection and concurrent esophagus and gastric cardia cancer from the same patient (CC) and examine the significance of P16 INK4A protein expressi...AIM:To investigate the relationship between human papillomavirus (HPV) infection and concurrent esophagus and gastric cardia cancer from the same patient (CC) and examine the significance of P16 INK4A protein expression.METHODS:Polymerase chain reaction was used to detect the presence of HPV type16 (HPV16).The expression of P16 INK4A protein was detected using immunohistochemistry.RESULTS:Among the CC specimens,HPV16-DNA was found in eight cases of esophageal squamous cell carcinoma (ESCC) and five cases of gastric cardia adenocarcinoma (GCA),respectively (47% vs 29%),and two of both ESCC and GCA.P16 INK4A was highly expressed in both ESCC and GCA.In the HPV-associated positive CC,higher P16 INK4A expression was observed in the GCA than in the ESCC (75% vs 25%,P < 0.05).CONCLUSION:HPV16 as a correlated risk factor may play an important role in the development of ESCC and GCA.P16 INK4A may be a screening index in the HPVassociated carcinoma of gastric cardia.展开更多
Objective To assess and compare the Human Papillomavirus(HPV) detection efficiency and the potential clinical utility of PCR sequencing‐based technology.Methods Four HPV consensus primer sets(GP5+/6+,MGP,MY09/11...Objective To assess and compare the Human Papillomavirus(HPV) detection efficiency and the potential clinical utility of PCR sequencing‐based technology.Methods Four HPV consensus primer sets(GP5+/6+,MGP,MY09/11,and PGMY09/11) were used in order to amplify a broad spectrum of HPV types for HPV infection in 325 cervical samples and the PCR products were sequenced afterwards for the HPV genotyping.Results The HPV‐positive rate was 75.4%,of which 35.5% harbored more than one HPV genotype.A total of 36 different genotypes was found,with HPV 16(24.1%) being the most prevalent,followed by HPV 58(13.3%) and HPV 52(9.6%).There were substantial to almost perfect agreements between different primer sets regarding HPV detection efficiency,with the kappa value varying from 0.751 to 0.925,MGP,and PGMY09/11 were the most effective in detecting multiple infections(P0.001).With each of the primer sets,a board range of HPV types could be identified,though there were several differences for a few genotypes.Conclusion The substantial agreement between PCR‐sequencing and HC2 for the detection of high‐risk HPV(kappa=0.761) indicated that PCR‐sequencing is also suitable for routine HPV screening.展开更多
Aim: To investigate whether urine is a good medium for screening and whether there is a correlation between the amount of extracted DNA and human papillomavirus (HPV)-positivity. Methods: In the present study, 30 ...Aim: To investigate whether urine is a good medium for screening and whether there is a correlation between the amount of extracted DNA and human papillomavirus (HPV)-positivity. Methods: In the present study, 30 first-voided urine (FVU) specimens and 20 urethroglandular swabs using cervex-brushes from male partners of HPV-positive patients, and 31 FVU specimens and 100 liquid-based cervix cytology leftovers sampled with cervix-brushes from HPV-positive women were examined for the presence of β-globin. Oncogenic HPV were detected using type-specific PCR. Results: β-globin was found in all the brushed samples, whereas it was found in only 68.9% of the FVU specimens. HPV-PCR was positive in 60.0% of the male brushes, in 29% of the female brushes and in 0% of the male FVU specimens. DNA concentration was, respectively, 0.9998 ng/μL, 37.0598 ng/μL and 0.0207 ng/μL. Conclusion: Urine is not a good tool for HPV detection, probably because the low DNA concentration reflects a low amount of collected cells. β-globin is measurable in FVU by real time quantitative PCR, but the DNA concentration is lower compared to brush sampling for both genders. β-globin-positivity of urethral and cervical swabs is 100%, showing a higher mean concentration of DNA, leading to a higher detection rate of HPV. This is the first article linking DNA- concentration to the presence of HPV.展开更多
To further investigate the vertical transmission route of human papillomavirus (HPV) and the indication for the choice of mode of delivery, the infective status of 152 asymptomatic pregnant wemen and the maternal-feta...To further investigate the vertical transmission route of human papillomavirus (HPV) and the indication for the choice of mode of delivery, the infective status of 152 asymptomatic pregnant wemen and the maternal-fetal transmission were studied. By using general primers in polymerase chain reaction (GP-PCR) combined with restriction fragment length polymorphism analysis, HPV DNA positive rate in cervical secretions and venous blood in asymptomatic pregnant women was 36.21 % and 52.78 %, respectively, and the identified genotypes were mainly HPV_16 and _18. The maternal-fetal transmission rate of HPV via genital tract as well as blood was 40.91 % and 57.89 %, respectively. It was concluded that besides the transmission route of genital tract and amniotic fluid, there was also transplacental transmission of HPV in utero. Therefore,in our opinion, it is not an absolut indication to perform a cesarean delivery for the pregnant women with HPV asymtomatic genital infection.展开更多
Objective: To access the performance of the Tellgenplex human papillomavirus(HPV) DNA test compared to the polymerase chain reaction-reverse dot blot(PCR-RDB) assay for the HPV genotyping.Methods: Sixty cervical swab ...Objective: To access the performance of the Tellgenplex human papillomavirus(HPV) DNA test compared to the polymerase chain reaction-reverse dot blot(PCR-RDB) assay for the HPV genotyping.Methods: Sixty cervical swab samples were genotyped by the Tellgenplex HPV DNA test and the PCR-RDB assay.The Tellgenplex HPV DNA test and the PCR-RDB assay can detect 26 and 23 HPV genotypes, respectively.Each sample showed discrepancy was genotyped using sequencing.Results: The percent agreement between the two tests ranged from 83.3% to 100.0% according to different genotype.This showed perfect agreement(>0.81) for high-risk HPV genotypes(35, 39, 45, 53, 56, 59, 66, 68, and 82), substantial agreement(>0.65) for high-risk HPV genotypes(16, 18, 33, 52, and 58) and low-risk HPV genotype 43 between the two assays by the kappa analysis.The positive rates of the two assays for frequent HPV genotypes(16, 35, 39, 45, 52, 53, 58, 59, 66, and 82) were not statistically different, but the PCR-RDB assay showed higher positive rates than the Tellgenplex HPV DNA test for HPV genotypes 81(P<0.05).As for more than 10 positive results by the Tellgenplex HPV DNA test and/or the PCR-RDB assay, the PCR-RDB assay showed higher relative sensitivity and specificity than the Tellgenplex HPV DNA test for the three HPV genotypes(16, 52, and 81).All HPV genotypes that can be detected by only the Tellgenplex HPV DNA test(HPV genotypes 44 and 55) were confirmed by sequencing.Conclusions: In conclusion, our results demonstrated that the PCR-RDB assay which can detect more multiple HPV genotypes in each specimen shows higher relative sensitivity and specificity than the Tellgenplex HPV DNA test, which makes it a better option for routine clinical use.展开更多
Human papillomaviruses (HPVs) infect mucosal and cutaneous epithelia and cause malignancy and neoplastic lesions. These viruses cause 25,000 deaths per year from cervical cancer most often in developing countries. T...Human papillomaviruses (HPVs) infect mucosal and cutaneous epithelia and cause malignancy and neoplastic lesions. These viruses cause 25,000 deaths per year from cervical cancer most often in developing countries. This major public health problem makes them important targets in the researches of papillomavirus detection methods. Since the early diagnosis of this virus infection would prevent neoplasia and cervical cancer, therefore in this study the combination of molecular and cytological methods were used to show the occurrence of the infection in women referred to Baghiatollah clinic of Shiraz. The results showed out of 110 cases, two samples were positive by PCR using GP5/6 primers but Pap smears showed only one sample of abnormal cytology. The rest 108 samples were negative by PCR and had normal cytology. The samples (1.82%) in evaluated women. present study showed a low occurrence of HPV infection in cervical展开更多
In studying the relationship between human papillomavirus (HPV) and bronchogenic carcinoma, 'high-risk' HPV 16, 18 DNA sequences were detected in samples from 50 lung cancer patients, 18 patients with benign p...In studying the relationship between human papillomavirus (HPV) and bronchogenic carcinoma, 'high-risk' HPV 16, 18 DNA sequences were detected in samples from 50 lung cancer patients, 18 patients with benign pulmonary diseases and 4 fetal lung tissues by polymerase chain reaction (PCR) and dot-blot hybridization with biotin-labelled probes. The results showed that HPV 16, 18 DNA related sequences were found in 32% of lung cancer specimens, with 10 cases of HPV 16, 5 cases of HPV 18 and 1 case of both types. 48.15% (13 / 27) of squamous cell carcinomas were shown to be positive for HPV 16, 18 DNA. In addition, two adenocarcinomas and one small cell carcinoma were positive for HPV 16 DNA. No specimens from benign diseases tissues and fetal lung tissues showed positive results. These results suggest that primary bronchogenic carcinoma is related to HPV infection.展开更多
Summary: To investigate the reliability and feasibility of human papillomavirus (HPV) DNA test in cervical scraping smears with polymerase chain reaction (PCR), 131 cases of cervical scraping specimens were colle...Summary: To investigate the reliability and feasibility of human papillomavirus (HPV) DNA test in cervical scraping smears with polymerase chain reaction (PCR), 131 cases of cervical scraping specimens were collected, and the positive rates and accuracy of HPV infection were determined in normal subjects and cervical cancer patients. GP5^+/GP6^+ and E7 primer pairs designed for detecting HPV L1 and HPV type 16 E7 were tested in this study. Our results showed that positive rates of HPV DNA in normal population and cervical cancer patients were 32.99% and 73.53% respectively and there was significant difference between them (P〈0. 001). In normal subjects, detection rates of HPV DNA with GP5^+/GP6^+ and E7 primer pairs were 27.84 % and 16.49 % respectively, with statistically significant difference between them (P〉0.05). However the detection rates in cervical cancer patients were 38.24 % and 67.65 % for the two markers, with a significant difference found between them (P〈0.05). It is concluded that HPV DNA test with PCR for cervical scraping smears was feasible. GP5^+/GP6^+ primer pairs may be a useful probe to screen HPV infection in normal population, but they are not sensitive enough in cervical cancer patients. It is suggested that high risk type HPV DNA test was very useful in population with high risk of cervical cancer.展开更多
Background:The SPF10 LiPA-25 system for human papillomavirus(HPV)detection with high analytical perfor-mance is widely used in HPV vaccine clinical trials.To develop and evaluate more valent HPV vaccines,other compara...Background:The SPF10 LiPA-25 system for human papillomavirus(HPV)detection with high analytical perfor-mance is widely used in HPV vaccine clinical trials.To develop and evaluate more valent HPV vaccines,other comparable methods with simpler operations are needed.Methods:The performance of the LiPA-25 against that of other 7 assays,including 4 systems based on reverse hybridization(Bohui-24,Yaneng-23,Tellgen-27,and Hybribio-16)and 3 real-time polymerase chain reaction(PCR)assays(Hybribio-23,Bioperfectus-21,and Sansure-26),was evaluated in selected 1726 cervical swab and 56 biopsy samples.A total of 15 HPV genotypes(HPV 6,11,16,18,31,33,35,39,45,51,52,56,58,59,and 66)were considered for comparison for each HPV type.Results:Among the swab samples,compared to LiPA-25,compatible genotypes were observed in 94.1%of samples for Hybribio-23,92.8%for Yaneng-23,92.6%for Bioperfectus-21,92.4%for Hybribio-16,91.3%for Sansure-26,89.7%for Bohui-24,and 88.0%for Tellgen-27.The highest overall agreement of the 15 HPV genotypes combined was noted for Hybribio-23(κ=0.879,McNemar’s test:P=0.136),followed closely by Hybribio-16(κ=0.877,P<0.001),Yaneng-23(κ=0.871,P<0.001),Bioperfectus-21(κ=0.848,P<0.001),Bohui-24(κ=0.847,P<0.001),Tellgen-27(κ=0.831,P<0.001),and Sansure-26(κ=0.826,P<0.001).Additionally,these systems were also highly consistent with LiPA-25 for biopsy specimens(all,κ>0.897).Conclusions:The levels of agreement for the detection of 15 HPV types between other 7 assays and LiPA-25 were all good,and Hybribio-23 was most comparable to LiPA-25.The testing operation of HPV genotyping should also be considered for vaccine and epidemiological studies.展开更多
目的探讨高危型人乳头瘤病毒(HR-HPV)DNA聚合酶链反应(PCR)联合液基薄层细胞学检查(TCT)对宫颈癌前病变筛查的应用与诊断价值。方法对540例TCT结果为非典型鳞状上皮细胞(ASCUS)及以上的患者进行HR-HPV DNA PCR检测,并对检测结果进行分...目的探讨高危型人乳头瘤病毒(HR-HPV)DNA聚合酶链反应(PCR)联合液基薄层细胞学检查(TCT)对宫颈癌前病变筛查的应用与诊断价值。方法对540例TCT结果为非典型鳞状上皮细胞(ASCUS)及以上的患者进行HR-HPV DNA PCR检测,并对检测结果进行分析。结果 TCT阳性合并HPV阳性患者共259例,其中ASCUS、低度鳞状上皮内病变(LSIL)、高度鳞状上皮内病变(HSIL)、鳞状细胞癌(SCC)的例数(阳性率)分别为155例(59.8%)、81例(31.3%)、15例(5.8%)、8例(3.1%);259例患者中ASCUS、LSIL、HSIL、SCC合并HR-HPV的阳性例数(阳性率)分别为28例(18.1%)、20例(24.7%)、10例(66.7%)、8例(100.0%)。HR-HPV和TCT单独检测的敏感性与两者联合检测的敏感性比较,差异具有统计学意义(P<0.05)。HR-HPV、TCT及两者联合检测的阳性预测值分别为25.5%、11.1%、28.2%,阴性预测值分别为68.8%、59.2%、40.8%。结论TCT与HR-HPV DNA PCR检测是筛查宫颈病变的有效方法,能最大程度地发现宫颈异常细胞并及时发现宫颈癌的诱因。展开更多
文摘The sensitivity of PCR was determined for detection of HBV DNA in paraffin-embed-ded liver tissue with different methods for sample preparation.Of 8 cases of HBeAg-positiveHBV infection,HBV DNA was detected in 6 by extracting DNA from both frozen and dewaxedsamples,but in none by direct reaction.Of 12 cases subjected to Southern blot hybridization,HBV DNA was detected in 7 by this technique,in 10 by PCR with both methods of DNA extrac-tion and in 3 by direct PCR.The results showed that PCR was sensitive and was comparablewith blot hybridization in detecting intrahepatic HBV DNA.In comparison between differentmethods of sample preparation,the viral detection rate from the dewaxed samples was near thatfrom the frozen ones,while by the direct reaction HBV DNA could be detected only in a fewsamples with high level of infection.
文摘The special primers Of p53 exon 7 as wed as HPV16 E6 and E7 ORFs (Opening Rending Frame) were used with PCR, PCR-SSCP technique, and 35 specimens of cervical carcinoma were examined. The results were as follows: ① HPV16 E6, E7 DNA was found in 25/35 specimens (71. 4%),which proved again HPV16 Infection an important event in cervical carcinogenesis. However only 11/35 (31.42% ) bad E6 and E7 ORFs simultaneously, 3/35 (8. 57%) and 11/35 (31. 42% ) had only E6 or E7 respectively. ② No mutation and LOH (Loss of Heterozygote) of p53 exon 7 were found in allof 35 specimens. Additionally in the present study, we developed a non-isotopic PCR-SSCP method.
文摘AIM:To investigate the relationship between human papillomavirus (HPV) infection and concurrent esophagus and gastric cardia cancer from the same patient (CC) and examine the significance of P16 INK4A protein expression.METHODS:Polymerase chain reaction was used to detect the presence of HPV type16 (HPV16).The expression of P16 INK4A protein was detected using immunohistochemistry.RESULTS:Among the CC specimens,HPV16-DNA was found in eight cases of esophageal squamous cell carcinoma (ESCC) and five cases of gastric cardia adenocarcinoma (GCA),respectively (47% vs 29%),and two of both ESCC and GCA.P16 INK4A was highly expressed in both ESCC and GCA.In the HPV-associated positive CC,higher P16 INK4A expression was observed in the GCA than in the ESCC (75% vs 25%,P < 0.05).CONCLUSION:HPV16 as a correlated risk factor may play an important role in the development of ESCC and GCA.P16 INK4A may be a screening index in the HPVassociated carcinoma of gastric cardia.
基金supported by a grant(D09050703570906)of the Beijing Municipal Science&Technology Commissionsupported by a grant(2009ZX10601)of the Program for Key Infectious Diseasesby the Knowledge Innovation Project of the Chinese Academy of Sciences
文摘Objective To assess and compare the Human Papillomavirus(HPV) detection efficiency and the potential clinical utility of PCR sequencing‐based technology.Methods Four HPV consensus primer sets(GP5+/6+,MGP,MY09/11,and PGMY09/11) were used in order to amplify a broad spectrum of HPV types for HPV infection in 325 cervical samples and the PCR products were sequenced afterwards for the HPV genotyping.Results The HPV‐positive rate was 75.4%,of which 35.5% harbored more than one HPV genotype.A total of 36 different genotypes was found,with HPV 16(24.1%) being the most prevalent,followed by HPV 58(13.3%) and HPV 52(9.6%).There were substantial to almost perfect agreements between different primer sets regarding HPV detection efficiency,with the kappa value varying from 0.751 to 0.925,MGP,and PGMY09/11 were the most effective in detecting multiple infections(P0.001).With each of the primer sets,a board range of HPV types could be identified,though there were several differences for a few genotypes.Conclusion The substantial agreement between PCR‐sequencing and HC2 for the detection of high‐risk HPV(kappa=0.761) indicated that PCR‐sequencing is also suitable for routine HPV screening.
文摘Aim: To investigate whether urine is a good medium for screening and whether there is a correlation between the amount of extracted DNA and human papillomavirus (HPV)-positivity. Methods: In the present study, 30 first-voided urine (FVU) specimens and 20 urethroglandular swabs using cervex-brushes from male partners of HPV-positive patients, and 31 FVU specimens and 100 liquid-based cervix cytology leftovers sampled with cervix-brushes from HPV-positive women were examined for the presence of β-globin. Oncogenic HPV were detected using type-specific PCR. Results: β-globin was found in all the brushed samples, whereas it was found in only 68.9% of the FVU specimens. HPV-PCR was positive in 60.0% of the male brushes, in 29% of the female brushes and in 0% of the male FVU specimens. DNA concentration was, respectively, 0.9998 ng/μL, 37.0598 ng/μL and 0.0207 ng/μL. Conclusion: Urine is not a good tool for HPV detection, probably because the low DNA concentration reflects a low amount of collected cells. β-globin is measurable in FVU by real time quantitative PCR, but the DNA concentration is lower compared to brush sampling for both genders. β-globin-positivity of urethral and cervical swabs is 100%, showing a higher mean concentration of DNA, leading to a higher detection rate of HPV. This is the first article linking DNA- concentration to the presence of HPV.
文摘To further investigate the vertical transmission route of human papillomavirus (HPV) and the indication for the choice of mode of delivery, the infective status of 152 asymptomatic pregnant wemen and the maternal-fetal transmission were studied. By using general primers in polymerase chain reaction (GP-PCR) combined with restriction fragment length polymorphism analysis, HPV DNA positive rate in cervical secretions and venous blood in asymptomatic pregnant women was 36.21 % and 52.78 %, respectively, and the identified genotypes were mainly HPV_16 and _18. The maternal-fetal transmission rate of HPV via genital tract as well as blood was 40.91 % and 57.89 %, respectively. It was concluded that besides the transmission route of genital tract and amniotic fluid, there was also transplacental transmission of HPV in utero. Therefore,in our opinion, it is not an absolut indication to perform a cesarean delivery for the pregnant women with HPV asymtomatic genital infection.
基金supported by the National Nature Science Foundation of China,Grant Number:81400639the Science Foundation for Youth Scientists of the Second People’s Hospital of Guangdong Province of China,Grant Number:YQ2015-002
文摘Objective: To access the performance of the Tellgenplex human papillomavirus(HPV) DNA test compared to the polymerase chain reaction-reverse dot blot(PCR-RDB) assay for the HPV genotyping.Methods: Sixty cervical swab samples were genotyped by the Tellgenplex HPV DNA test and the PCR-RDB assay.The Tellgenplex HPV DNA test and the PCR-RDB assay can detect 26 and 23 HPV genotypes, respectively.Each sample showed discrepancy was genotyped using sequencing.Results: The percent agreement between the two tests ranged from 83.3% to 100.0% according to different genotype.This showed perfect agreement(>0.81) for high-risk HPV genotypes(35, 39, 45, 53, 56, 59, 66, 68, and 82), substantial agreement(>0.65) for high-risk HPV genotypes(16, 18, 33, 52, and 58) and low-risk HPV genotype 43 between the two assays by the kappa analysis.The positive rates of the two assays for frequent HPV genotypes(16, 35, 39, 45, 52, 53, 58, 59, 66, and 82) were not statistically different, but the PCR-RDB assay showed higher positive rates than the Tellgenplex HPV DNA test for HPV genotypes 81(P<0.05).As for more than 10 positive results by the Tellgenplex HPV DNA test and/or the PCR-RDB assay, the PCR-RDB assay showed higher relative sensitivity and specificity than the Tellgenplex HPV DNA test for the three HPV genotypes(16, 52, and 81).All HPV genotypes that can be detected by only the Tellgenplex HPV DNA test(HPV genotypes 44 and 55) were confirmed by sequencing.Conclusions: In conclusion, our results demonstrated that the PCR-RDB assay which can detect more multiple HPV genotypes in each specimen shows higher relative sensitivity and specificity than the Tellgenplex HPV DNA test, which makes it a better option for routine clinical use.
文摘Human papillomaviruses (HPVs) infect mucosal and cutaneous epithelia and cause malignancy and neoplastic lesions. These viruses cause 25,000 deaths per year from cervical cancer most often in developing countries. This major public health problem makes them important targets in the researches of papillomavirus detection methods. Since the early diagnosis of this virus infection would prevent neoplasia and cervical cancer, therefore in this study the combination of molecular and cytological methods were used to show the occurrence of the infection in women referred to Baghiatollah clinic of Shiraz. The results showed out of 110 cases, two samples were positive by PCR using GP5/6 primers but Pap smears showed only one sample of abnormal cytology. The rest 108 samples were negative by PCR and had normal cytology. The samples (1.82%) in evaluated women. present study showed a low occurrence of HPV infection in cervical
文摘In studying the relationship between human papillomavirus (HPV) and bronchogenic carcinoma, 'high-risk' HPV 16, 18 DNA sequences were detected in samples from 50 lung cancer patients, 18 patients with benign pulmonary diseases and 4 fetal lung tissues by polymerase chain reaction (PCR) and dot-blot hybridization with biotin-labelled probes. The results showed that HPV 16, 18 DNA related sequences were found in 32% of lung cancer specimens, with 10 cases of HPV 16, 5 cases of HPV 18 and 1 case of both types. 48.15% (13 / 27) of squamous cell carcinomas were shown to be positive for HPV 16, 18 DNA. In addition, two adenocarcinomas and one small cell carcinoma were positive for HPV 16 DNA. No specimens from benign diseases tissues and fetal lung tissues showed positive results. These results suggest that primary bronchogenic carcinoma is related to HPV infection.
文摘Summary: To investigate the reliability and feasibility of human papillomavirus (HPV) DNA test in cervical scraping smears with polymerase chain reaction (PCR), 131 cases of cervical scraping specimens were collected, and the positive rates and accuracy of HPV infection were determined in normal subjects and cervical cancer patients. GP5^+/GP6^+ and E7 primer pairs designed for detecting HPV L1 and HPV type 16 E7 were tested in this study. Our results showed that positive rates of HPV DNA in normal population and cervical cancer patients were 32.99% and 73.53% respectively and there was significant difference between them (P〈0. 001). In normal subjects, detection rates of HPV DNA with GP5^+/GP6^+ and E7 primer pairs were 27.84 % and 16.49 % respectively, with statistically significant difference between them (P〉0.05). However the detection rates in cervical cancer patients were 38.24 % and 67.65 % for the two markers, with a significant difference found between them (P〈0.05). It is concluded that HPV DNA test with PCR for cervical scraping smears was feasible. GP5^+/GP6^+ primer pairs may be a useful probe to screen HPV infection in normal population, but they are not sensitive enough in cervical cancer patients. It is suggested that high risk type HPV DNA test was very useful in population with high risk of cervical cancer.
基金supported by the CAMS Innovation Fund for Medical Sciences(grant number 2021-I2M-1-004)the National Natural Science Foundation of China(grant number 81973136).
文摘Background:The SPF10 LiPA-25 system for human papillomavirus(HPV)detection with high analytical perfor-mance is widely used in HPV vaccine clinical trials.To develop and evaluate more valent HPV vaccines,other comparable methods with simpler operations are needed.Methods:The performance of the LiPA-25 against that of other 7 assays,including 4 systems based on reverse hybridization(Bohui-24,Yaneng-23,Tellgen-27,and Hybribio-16)and 3 real-time polymerase chain reaction(PCR)assays(Hybribio-23,Bioperfectus-21,and Sansure-26),was evaluated in selected 1726 cervical swab and 56 biopsy samples.A total of 15 HPV genotypes(HPV 6,11,16,18,31,33,35,39,45,51,52,56,58,59,and 66)were considered for comparison for each HPV type.Results:Among the swab samples,compared to LiPA-25,compatible genotypes were observed in 94.1%of samples for Hybribio-23,92.8%for Yaneng-23,92.6%for Bioperfectus-21,92.4%for Hybribio-16,91.3%for Sansure-26,89.7%for Bohui-24,and 88.0%for Tellgen-27.The highest overall agreement of the 15 HPV genotypes combined was noted for Hybribio-23(κ=0.879,McNemar’s test:P=0.136),followed closely by Hybribio-16(κ=0.877,P<0.001),Yaneng-23(κ=0.871,P<0.001),Bioperfectus-21(κ=0.848,P<0.001),Bohui-24(κ=0.847,P<0.001),Tellgen-27(κ=0.831,P<0.001),and Sansure-26(κ=0.826,P<0.001).Additionally,these systems were also highly consistent with LiPA-25 for biopsy specimens(all,κ>0.897).Conclusions:The levels of agreement for the detection of 15 HPV types between other 7 assays and LiPA-25 were all good,and Hybribio-23 was most comparable to LiPA-25.The testing operation of HPV genotyping should also be considered for vaccine and epidemiological studies.
文摘目的探讨高危型人乳头瘤病毒(HR-HPV)DNA聚合酶链反应(PCR)联合液基薄层细胞学检查(TCT)对宫颈癌前病变筛查的应用与诊断价值。方法对540例TCT结果为非典型鳞状上皮细胞(ASCUS)及以上的患者进行HR-HPV DNA PCR检测,并对检测结果进行分析。结果 TCT阳性合并HPV阳性患者共259例,其中ASCUS、低度鳞状上皮内病变(LSIL)、高度鳞状上皮内病变(HSIL)、鳞状细胞癌(SCC)的例数(阳性率)分别为155例(59.8%)、81例(31.3%)、15例(5.8%)、8例(3.1%);259例患者中ASCUS、LSIL、HSIL、SCC合并HR-HPV的阳性例数(阳性率)分别为28例(18.1%)、20例(24.7%)、10例(66.7%)、8例(100.0%)。HR-HPV和TCT单独检测的敏感性与两者联合检测的敏感性比较,差异具有统计学意义(P<0.05)。HR-HPV、TCT及两者联合检测的阳性预测值分别为25.5%、11.1%、28.2%,阴性预测值分别为68.8%、59.2%、40.8%。结论TCT与HR-HPV DNA PCR检测是筛查宫颈病变的有效方法,能最大程度地发现宫颈异常细胞并及时发现宫颈癌的诱因。