Pub Date : 2023-07-30DOI: 10.31557/apjcb.2023.8.2.155-159
Fateme Mohammadinezhad, A. Talebi, M. Allahyartorkaman, R. Nahavandi, Maryam Vesal, Azim Akbarzadeh khiyavi
Objective: Today, cancer is one the most important challenges in modern medicine. Breast carcinoma is one type of cancer that is treated with cisplatin, a chemotherapy drug. By using liposomal nanocarriers, this study seeks to increase the therapeutic efficiency of cisplatin. Method: The zeta potential, particle size, and drug-release characteristics of nanoliposomal cisplatin were evaluated after it had been synthesized using the reverse phase evaporation technique. The cytotoxicity rate of nanoliposomal cisplatin was then assessed using the T-47D breast cancer cell line. Results: This study’s liposomal nanoparticles (NPs) had a zeta potential of -24.9 mV and a particle size of 342.3 nm. 3.51% and 79.6%, respectively, were found to be the drug loading level and amount of encapsulated drug. A significant improvement over the free drug was seen in this nanoliposome’s cytotoxic effect on the T-47D breast cancer cell line (P<0.05). Conclusion: According to what we have discovered, cisplatin liposomal nanocarriers may prove to be a cutting-edge chemotherapy treatment for breast cancer.
{"title":"Preparation, Characterization and Cytotoxic Studies of Cisplatin-containing Nanoliposomes on Breast Cancer Cell Lines","authors":"Fateme Mohammadinezhad, A. Talebi, M. Allahyartorkaman, R. Nahavandi, Maryam Vesal, Azim Akbarzadeh khiyavi","doi":"10.31557/apjcb.2023.8.2.155-159","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.2.155-159","url":null,"abstract":"Objective: Today, cancer is one the most important challenges in modern medicine. Breast carcinoma is one type of cancer that is treated with cisplatin, a chemotherapy drug. By using liposomal nanocarriers, this study seeks to increase the therapeutic efficiency of cisplatin. Method: The zeta potential, particle size, and drug-release characteristics of nanoliposomal cisplatin were evaluated after it had been synthesized using the reverse phase evaporation technique. The cytotoxicity rate of nanoliposomal cisplatin was then assessed using the T-47D breast cancer cell line. Results: This study’s liposomal nanoparticles (NPs) had a zeta potential of -24.9 mV and a particle size of 342.3 nm. 3.51% and 79.6%, respectively, were found to be the drug loading level and amount of encapsulated drug. A significant improvement over the free drug was seen in this nanoliposome’s cytotoxic effect on the T-47D breast cancer cell line (P<0.05). Conclusion: According to what we have discovered, cisplatin liposomal nanocarriers may prove to be a cutting-edge chemotherapy treatment for breast cancer.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76091305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-18DOI: 10.31557/apjcb.2023.8.2.147-153
Tejasvita Singh, Anshul Singh, Manoj Bind, V. Misra, S. Misra, M. Dwivedi, Shabir Ahmad
Objective: To study and correlate PDL-1 expression with Tumour budding and Tumour Infiltrating Lymphocytes in Colorectal Carcinoma. Background: Colorectal cancer (CRC) is third most common cancer with a high mortality. Many attempts have been made to raise overall survival of CRC patients. The immune system plays an important role in clearing the unhealthy cancer cells. Programmed death 1 (PD1) is a regulatory molecule which dampens the immune response when bound to one of its complementary ligands (PDL1). Its expression is related to the response of immunotherapy in CRC treatment which has been exploited in recent times. However, its prognostic value is still controversial, and the distribution of PD-L1 on tumour Cells or Immune Cells has not been comprehensively analysed. Method: A total of 30 patients diagnosed with CRCs were included who underwent surgical intervention. Cases who took preoperative neoadjuvant chemotherapy or radiotherapy were excluded. IHC analyses of PDL1 was done and was correlated with tumour budding and Tumour Infiltrating Lymphocytes (TILs) and statistical significance was assessed. Results: 11 cases showed low bud count at the invasive front out of which only 3 cases showed PDL1 positivity. The rest 19 cases had high bud count out of which 18 were PDL 1 positive. This difference was highly significant (p = 0.002). In Low Bud / High TILs, 75% cases showed no PDL1 expression in tumour cells, whereas 62.5% cases showed PDL1 positivity in TILs whereas in High Bud / Low TILs group, all the cases (100%) showed PDL1 expression in tumour cells whereas only 75% cases showed PDL1 positivity in TILs, again being statistically significant (p <0.001). Conclusion: This study showed an inverse correlation between PDL1 in tumour buds and immune cells, thus emphasising the role of tumour microenvironment. Our study reiterates the fact that high expression of PDL1 in tumour cells suppresses antitumor response whereas its high expression in TILS correlates with a better prognosis.
{"title":"Correlation of PDL-1 Expression with Tumour Budding and Tumour Infiltrating Lymphocytes in Colorectal Cancers","authors":"Tejasvita Singh, Anshul Singh, Manoj Bind, V. Misra, S. Misra, M. Dwivedi, Shabir Ahmad","doi":"10.31557/apjcb.2023.8.2.147-153","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.2.147-153","url":null,"abstract":"Objective: To study and correlate PDL-1 expression with Tumour budding and Tumour Infiltrating Lymphocytes in Colorectal Carcinoma. Background: Colorectal cancer (CRC) is third most common cancer with a high mortality. Many attempts have been made to raise overall survival of CRC patients. The immune system plays an important role in clearing the unhealthy cancer cells. Programmed death 1 (PD1) is a regulatory molecule which dampens the immune response when bound to one of its complementary ligands (PDL1). Its expression is related to the response of immunotherapy in CRC treatment which has been exploited in recent times. However, its prognostic value is still controversial, and the distribution of PD-L1 on tumour Cells or Immune Cells has not been comprehensively analysed. Method: A total of 30 patients diagnosed with CRCs were included who underwent surgical intervention. Cases who took preoperative neoadjuvant chemotherapy or radiotherapy were excluded. IHC analyses of PDL1 was done and was correlated with tumour budding and Tumour Infiltrating Lymphocytes (TILs) and statistical significance was assessed. Results: 11 cases showed low bud count at the invasive front out of which only 3 cases showed PDL1 positivity. The rest 19 cases had high bud count out of which 18 were PDL 1 positive. This difference was highly significant (p = 0.002). In Low Bud / High TILs, 75% cases showed no PDL1 expression in tumour cells, whereas 62.5% cases showed PDL1 positivity in TILs whereas in High Bud / Low TILs group, all the cases (100%) showed PDL1 expression in tumour cells whereas only 75% cases showed PDL1 positivity in TILs, again being statistically significant (p <0.001). Conclusion: This study showed an inverse correlation between PDL1 in tumour buds and immune cells, thus emphasising the role of tumour microenvironment. Our study reiterates the fact that high expression of PDL1 in tumour cells suppresses antitumor response whereas its high expression in TILS correlates with a better prognosis.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"96 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76236779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-11DOI: 10.31557/apjcb.2023.8.2.135-145
Soayebo Dabré, A. Zouré, Touwendpoulimdé Isabelle Kiendrebeogo, N. Zongo, L. J. Amegnona, H. K. Sombié, Marc Donald Wilfried Adico, B. S. Bakyono, L. Traoré, T. C. Ouédraogo, Rogomenoma Alice Ouedraogo, Théodora M. Zohoncon, A. Yonli, A. Y. Sawadogo, Florencia W. Djigma, J. Simporé
Introduction: The TP53 and CHEK2 genes have been described as breast cancer susceptibility genes and some of their polymorphisms have been associated with an increased risk of breast cancer in certain populations.Aim: The objective of this study was to investigate the p.R72P and PIN3 Ins16bp (TP53) polymorphisms and the I157T (CHEK2) mutation developping of breast cancer. Methods: This case-control study had enrolled 144 participants including 65 cases (breast cancer patients) and 79 controls (women without breast abnormalities) in the city of Ouagadougou in Burkina Faso. The DNA was extracted using the method of “salting out” and the genotyping of polymorphisms was performed by ASO-PCR (Allele Specific Oligonucleotides - Polymerase Chain Reaction), conventional PCR and PCR-RFLP (Polymerase Chain Reaction - Restriction Fragment Length Polymorphism) techniques. Results: The heterozygous genotype (RP) of the p.R72P polymorphism of TP53 gene was in the majority in cases (73.85%) and controls (73.42%). Regarding to the PIN3 Ins16bp polymorphism of TP53 gene, the homozygous wild type (A1A1) was the most represented in both cases (53.85%) and controls (60.76%). Concerning the I157T mutation of CHEK2 gene, only one (01) patient was homozygous mutant (TT) and no controls had the mutation. This study found no association between these polymorphisms and the risk of breast cancer occurrence (p.R72P (OR=0.96; 95%IC (0.59-1.56); p=0.471), PIN3 Ins16bp (OR= 1.1; 95%IC (0.61-1.98); p=0.420)). Conclusion: This study showed that the P allele of the p.R72P polymorphism and the wild-type allele (A1) of the PIN3 Ins16bp polymorphism were in the majority. The I157T mutation was very rare. These polymorphisms were not associated with the risk of developing breast cancer in this study.
{"title":"Involvement of p.R72P and PIN3 Ins16bp (TP53) Polymorphisms and the I157T (CHEK2) Mutation in Breast Cancer Occurrence in Burkina Faso","authors":"Soayebo Dabré, A. Zouré, Touwendpoulimdé Isabelle Kiendrebeogo, N. Zongo, L. J. Amegnona, H. K. Sombié, Marc Donald Wilfried Adico, B. S. Bakyono, L. Traoré, T. C. Ouédraogo, Rogomenoma Alice Ouedraogo, Théodora M. Zohoncon, A. Yonli, A. Y. Sawadogo, Florencia W. Djigma, J. Simporé","doi":"10.31557/apjcb.2023.8.2.135-145","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.2.135-145","url":null,"abstract":"Introduction: The TP53 and CHEK2 genes have been described as breast cancer susceptibility genes and some of their polymorphisms have been associated with an increased risk of breast cancer in certain populations.Aim: The objective of this study was to investigate the p.R72P and PIN3 Ins16bp (TP53) polymorphisms and the I157T (CHEK2) mutation developping of breast cancer. Methods: This case-control study had enrolled 144 participants including 65 cases (breast cancer patients) and 79 controls (women without breast abnormalities) in the city of Ouagadougou in Burkina Faso. The DNA was extracted using the method of “salting out” and the genotyping of polymorphisms was performed by ASO-PCR (Allele Specific Oligonucleotides - Polymerase Chain Reaction), conventional PCR and PCR-RFLP (Polymerase Chain Reaction - Restriction Fragment Length Polymorphism) techniques. Results: The heterozygous genotype (RP) of the p.R72P polymorphism of TP53 gene was in the majority in cases (73.85%) and controls (73.42%). Regarding to the PIN3 Ins16bp polymorphism of TP53 gene, the homozygous wild type (A1A1) was the most represented in both cases (53.85%) and controls (60.76%). Concerning the I157T mutation of CHEK2 gene, only one (01) patient was homozygous mutant (TT) and no controls had the mutation. This study found no association between these polymorphisms and the risk of breast cancer occurrence (p.R72P (OR=0.96; 95%IC (0.59-1.56); p=0.471), PIN3 Ins16bp (OR= 1.1; 95%IC (0.61-1.98); p=0.420)). Conclusion: This study showed that the P allele of the p.R72P polymorphism and the wild-type allele (A1) of the PIN3 Ins16bp polymorphism were in the majority. The I157T mutation was very rare. These polymorphisms were not associated with the risk of developing breast cancer in this study.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84857380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-31DOI: 10.31557/apjcb.2023.8.2.191-193
N. Ahmed
Background: Schwannoma is a benign tumor arises from Schwann cells of the peripheral nerves. Tongue base schwannomas are very rare and have been sporadically reported; it is usually missed when evaluating a tongue base mass. This work aimed to report a new case of tongue base schwannoma and to review the literature about this tumor. Case presentation: A male patient of 40 years old presented with slowly enlarging mass at the tongue base. Clinical and radiological findings highly suspected of tongue base benign lesion. Trans-oral resection was done and the specimen was subjected to the histopathological evaluation. Conclusion: Schwannoma should be considered for a well-defined, painless, firm swelling at the tongue base.
{"title":"Tongue Base Schwannoma: A Case Report and Literature Review","authors":"N. Ahmed","doi":"10.31557/apjcb.2023.8.2.191-193","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.2.191-193","url":null,"abstract":"Background: Schwannoma is a benign tumor arises from Schwann cells of the peripheral nerves. Tongue base schwannomas are very rare and have been sporadically reported; it is usually missed when evaluating a tongue base mass. This work aimed to report a new case of tongue base schwannoma and to review the literature about this tumor. Case presentation: A male patient of 40 years old presented with slowly enlarging mass at the tongue base. Clinical and radiological findings highly suspected of tongue base benign lesion. Trans-oral resection was done and the specimen was subjected to the histopathological evaluation. Conclusion: Schwannoma should be considered for a well-defined, painless, firm swelling at the tongue base.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85551743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-31DOI: 10.31557/apjcb.2023.8.2.195-198
M. Ramezani, Shadi Siami, S. Hosseini, M. Sadeghi
Objective: Multifocality in gynecologic malignancies is a common phenomenon, however synchronous tumors may occur. Synchronous cancers are about 1.7% of gynecologic malignancies. Methods: A 57-year old female with chief complaint of vaginal bleeding was admitted. Endometrial curettage and cervical biopsy was done.Result: Pathologist reported: compatible with papillary adenocarcinoma, Grade II in endometrial sample and squamous epithelium with moderate dysplasia and tiny fragments of atypical glandular epithelium in endocervical samples. The patient refused for surgical excision of the lesion and insisted on to treat with conventional herbal medicine. Later Pap smear was done and pathologist reported: “High grade squamous intraepithelial lesion (HSIL) and atypical glandular cells, favor neoplastic in atrophic background”. Conclusion: In the case of gynecologic cancer be careful that it may accompany another gynecologic malignancy or premalignant lesion. The second lesion may occur synchronous or metachronous or may be metastatic. Many of the synchronous malignancies are presented in lower stages and have better prognosis than metastatic lesion. Thorough sampling and examination is important in correct diagnosis and treatment.
{"title":"Papillary Endometrial Adenocarcinoma with Cervical Dysplasia: Report of a Case and Review of Literature","authors":"M. Ramezani, Shadi Siami, S. Hosseini, M. Sadeghi","doi":"10.31557/apjcb.2023.8.2.195-198","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.2.195-198","url":null,"abstract":"Objective: Multifocality in gynecologic malignancies is a common phenomenon, however synchronous tumors may occur. Synchronous cancers are about 1.7% of gynecologic malignancies. Methods: A 57-year old female with chief complaint of vaginal bleeding was admitted. Endometrial curettage and cervical biopsy was done.Result: Pathologist reported: compatible with papillary adenocarcinoma, Grade II in endometrial sample and squamous epithelium with moderate dysplasia and tiny fragments of atypical glandular epithelium in endocervical samples. The patient refused for surgical excision of the lesion and insisted on to treat with conventional herbal medicine. Later Pap smear was done and pathologist reported: “High grade squamous intraepithelial lesion (HSIL) and atypical glandular cells, favor neoplastic in atrophic background”. Conclusion: In the case of gynecologic cancer be careful that it may accompany another gynecologic malignancy or premalignant lesion. The second lesion may occur synchronous or metachronous or may be metastatic. Many of the synchronous malignancies are presented in lower stages and have better prognosis than metastatic lesion. Thorough sampling and examination is important in correct diagnosis and treatment.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"103 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80847890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-31DOI: 10.31557/apjcb.2023.8.2.127-133
Noha ED Hassab El-Naby, Mohsen Saber Mohammed Ahmed, N. Ahmed
Background: Distinguishing between pleural epithelioid mesothelioma, lung adenocarcinoma, and poorly differentiated squamous cell carcinoma (SCC) is a challenge in some cases. A panel of markers has been recommended by the International Mesothelioma Interest Group (IMIG) guideline to differentiate epithelioid mesothelioma from lung adenocarcinoma and SCC. However, the use of novel highly specific immunohistochemical (IHC) markers is still required. Objectives: This study aimed to evaluate glypican-1 (GPC1) expression in epithelioid mesothelioma, lung adenocarcinoma, and SCC, correlating its expression with some known clinicopathological parameters to clarify its diagnostic and prognostic value.Methods: This study included seventy specimens designated as 20 cases of pleural epithelioid mesothelioma, 30 cases of lung adenocarcinoma, and 20 cases of lung SCC. GPC1 expression was evaluated using immunohistochemistry (IHC). The data was analyzed statistically by SPSS software 25. GPC1 expression was correlated to different clinicopathologic data using Chi-square test. The study was conducted according to local Ethical Committee regulations. Results: This study detected positive GPC1 reactivity in all cases (100%) of pleural mesothelioma and lung SCC, in which increased GPC1 expression was correlated to large-sized, high grade, advanced stage tumors, and the presence of lymph node metastasis (LNM). In contrast, GPC1 expression was absent in about 93% of lung adenocarcinoma cases, and only 2 cases exhibited weak focal expression. Conclusion: Our findings demonstrated that GPC1 expression is upregulated in advanced pleural mesothelioma and pulmonary SCC; tumors with high GPC1 expression exhibited more advanced biological behavior.
{"title":"Value of Glypican-1 Expression in Pleural Epithelioid Mesothelioma, Adenocarcinoma and Squamous Cell Carcinoma of the Lung","authors":"Noha ED Hassab El-Naby, Mohsen Saber Mohammed Ahmed, N. Ahmed","doi":"10.31557/apjcb.2023.8.2.127-133","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.2.127-133","url":null,"abstract":"Background: Distinguishing between pleural epithelioid mesothelioma, lung adenocarcinoma, and poorly differentiated squamous cell carcinoma (SCC) is a challenge in some cases. A panel of markers has been recommended by the International Mesothelioma Interest Group (IMIG) guideline to differentiate epithelioid mesothelioma from lung adenocarcinoma and SCC. However, the use of novel highly specific immunohistochemical (IHC) markers is still required. Objectives: This study aimed to evaluate glypican-1 (GPC1) expression in epithelioid mesothelioma, lung adenocarcinoma, and SCC, correlating its expression with some known clinicopathological parameters to clarify its diagnostic and prognostic value.Methods: This study included seventy specimens designated as 20 cases of pleural epithelioid mesothelioma, 30 cases of lung adenocarcinoma, and 20 cases of lung SCC. GPC1 expression was evaluated using immunohistochemistry (IHC). The data was analyzed statistically by SPSS software 25. GPC1 expression was correlated to different clinicopathologic data using Chi-square test. The study was conducted according to local Ethical Committee regulations. Results: This study detected positive GPC1 reactivity in all cases (100%) of pleural mesothelioma and lung SCC, in which increased GPC1 expression was correlated to large-sized, high grade, advanced stage tumors, and the presence of lymph node metastasis (LNM). In contrast, GPC1 expression was absent in about 93% of lung adenocarcinoma cases, and only 2 cases exhibited weak focal expression. Conclusion: Our findings demonstrated that GPC1 expression is upregulated in advanced pleural mesothelioma and pulmonary SCC; tumors with high GPC1 expression exhibited more advanced biological behavior.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79211690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-07DOI: 10.31557/apjcb.2023.8.2.111-117
Raja Ratna Kishore, Vinita Pan
Introduction: Analysis of Anaplastic lymphoma receptor tyrosine kinase gene (ALK), Repressor of Silencing 1 (ROS1) gene are determined by immunohistochemistry (IHC) and it is an easily applicable, cost-effective assay for potential treatment with crizotinib. Mutations of Epidermal growth factor receptor (EGFR) genes are evaluated by IHC/Multiplex RT-PCR. The purpose of this study is to assess the frequencies of ALK, ROS1 and their association with EGFR fusion gene mutations in a spectrum of lung tumours. Materials and methods: A total of 202 cases of lung tumours reported at our Center for Oncopathology from September 1st 2020 to 31st August 2021, were retrospectively analyzed for ALK, ROS1 and EGFR fusion genes based on Immunohistochemistry (IHC) and Multiplex PCR findings. ALK was tested using D5F3 clone, and ROS1 was analyzed using Cell Signalling’s D4D6 clone on the Ventana immunohistochemistry platform. EGFR status was analyzed using EGFR mutation test V2 real-time multiplex PCR assay on Roche Cobas Z480. Results: 202 biopsy samples and cellblocks of fluid aspirates were analyzed. 175/202 were histologically and immunologically proved as Non-small cell lung carcinoma (Primary pulmonary adenocarcinoma) and its metastases. 09/199 (5.23%) were Positive for ALK IHC and 03/199 (1.74%) cases had equivocal results. 06/179 (3.85%) cases were Positive for ROS1 IHC and 03/179 (1.92%) cases had equivocal results. Other histo-morphological diagnoses i.e., adenosquamous, squamous, small cell, mucinous carcinoma etc (27 cases) were all ALK and ROS1 Negative. 188/202 tumours were analyzed for EGFR mutation status, which showed 70/188 (37.23%) had specific EGFR mutations. 118/188 (62.76%) cases were EGFR wildtype. Conclusion: We observed that age related incidence of EGFR mutations was highest in elderly females, of 61 to 70 years. ALK gene mutations occurred in 6.03% and ROS1 gene mutations occurred in 5.02% of lung tumours and their metastases. EGFR-mutations were associated with ROS1 mutated lung adenocarcinomas. There are no coexistent ALK-EGFR or ALK-ROS1 mutations. All ALK IHC positive pulmonary adenocarcinomas are ROS1 negative and are mutually exclusive.
{"title":"Correlation between ALK, ROS1 Biomarkers and EGFR Oncogene Mutations in Lung Tumours: Our Observations in an Apex Oncopathology Laboratory","authors":"Raja Ratna Kishore, Vinita Pan","doi":"10.31557/apjcb.2023.8.2.111-117","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.2.111-117","url":null,"abstract":"Introduction: Analysis of Anaplastic lymphoma receptor tyrosine kinase gene (ALK), Repressor of Silencing 1 (ROS1) gene are determined by immunohistochemistry (IHC) and it is an easily applicable, cost-effective assay for potential treatment with crizotinib. Mutations of Epidermal growth factor receptor (EGFR) genes are evaluated by IHC/Multiplex RT-PCR. The purpose of this study is to assess the frequencies of ALK, ROS1 and their association with EGFR fusion gene mutations in a spectrum of lung tumours. Materials and methods: A total of 202 cases of lung tumours reported at our Center for Oncopathology from September 1st 2020 to 31st August 2021, were retrospectively analyzed for ALK, ROS1 and EGFR fusion genes based on Immunohistochemistry (IHC) and Multiplex PCR findings. ALK was tested using D5F3 clone, and ROS1 was analyzed using Cell Signalling’s D4D6 clone on the Ventana immunohistochemistry platform. EGFR status was analyzed using EGFR mutation test V2 real-time multiplex PCR assay on Roche Cobas Z480. Results: 202 biopsy samples and cellblocks of fluid aspirates were analyzed. 175/202 were histologically and immunologically proved as Non-small cell lung carcinoma (Primary pulmonary adenocarcinoma) and its metastases. 09/199 (5.23%) were Positive for ALK IHC and 03/199 (1.74%) cases had equivocal results. 06/179 (3.85%) cases were Positive for ROS1 IHC and 03/179 (1.92%) cases had equivocal results. Other histo-morphological diagnoses i.e., adenosquamous, squamous, small cell, mucinous carcinoma etc (27 cases) were all ALK and ROS1 Negative. 188/202 tumours were analyzed for EGFR mutation status, which showed 70/188 (37.23%) had specific EGFR mutations. 118/188 (62.76%) cases were EGFR wildtype. Conclusion: We observed that age related incidence of EGFR mutations was highest in elderly females, of 61 to 70 years. ALK gene mutations occurred in 6.03% and ROS1 gene mutations occurred in 5.02% of lung tumours and their metastases. EGFR-mutations were associated with ROS1 mutated lung adenocarcinomas. There are no coexistent ALK-EGFR or ALK-ROS1 mutations. All ALK IHC positive pulmonary adenocarcinomas are ROS1 negative and are mutually exclusive.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88826594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-07DOI: 10.31557/apjcb.2023.8.2.119-125
Rehab Maher Ismail, A. Gaballah, A. Salama, M. Shakweer, G. Meckawy, Malames Mahmoud Faisal
Background: Human Papilloma virus (HPV) is the main cause of cervical cancer. Infection with HPV can be reflected by overexpression of p16ink4a. Aim of the study: we aimed at evaluating the expression of p16ink4a in cervical cancer patients and its prognostic significance. Patients and methods: This retrospective registry and follow up study was conducted on 95 women diagnosed with cervical cancer. After screening of patients presented to our hospitals; 50 patients were eligible for inclusion in the study. P16ink4a was assessed by immunohistochemistry on archived tumor’s samples and correlation with different epidemiological, clinical and pathological data was performed. Prognostic impact of P16ink4a on overall survival (OS) and event free survival (EFS) was evaluated.Results: Median age of patients was 55 years. The main presenting symptom was bleeding. Most of the patients presented with late FIGO staging 64% with stage IIIb and 10% with stage IIb. P16ink4a was positive in 80% of patients. Correlation between P16ink4a and different clinic-epidemiological data revealed positive significant correlation with tumor grade and tumor size (P values of 0.03 and 0.05 respectively). Considering the effect of p16ink4a expression and EFS and OS, our study failed to show any significant correlation.Conclusion: The late stage at presentation of our population encourages the need for national screening program. The main cause of cervical cancer is HPV reflected by positive P16 similar to international literature. In our study the failure to reach a significant correlation with survival may be due the small sample size.
{"title":"Prognostic Impact of Human Papilloma Virus Infection on Cervical Cancer Patients Reflected by p16ink4a Expression: Single Institution Experience","authors":"Rehab Maher Ismail, A. Gaballah, A. Salama, M. Shakweer, G. Meckawy, Malames Mahmoud Faisal","doi":"10.31557/apjcb.2023.8.2.119-125","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.2.119-125","url":null,"abstract":"Background: Human Papilloma virus (HPV) is the main cause of cervical cancer. Infection with HPV can be reflected by overexpression of p16ink4a. Aim of the study: we aimed at evaluating the expression of p16ink4a in cervical cancer patients and its prognostic significance. Patients and methods: This retrospective registry and follow up study was conducted on 95 women diagnosed with cervical cancer. After screening of patients presented to our hospitals; 50 patients were eligible for inclusion in the study. P16ink4a was assessed by immunohistochemistry on archived tumor’s samples and correlation with different epidemiological, clinical and pathological data was performed. Prognostic impact of P16ink4a on overall survival (OS) and event free survival (EFS) was evaluated.Results: Median age of patients was 55 years. The main presenting symptom was bleeding. Most of the patients presented with late FIGO staging 64% with stage IIIb and 10% with stage IIb. P16ink4a was positive in 80% of patients. Correlation between P16ink4a and different clinic-epidemiological data revealed positive significant correlation with tumor grade and tumor size (P values of 0.03 and 0.05 respectively). Considering the effect of p16ink4a expression and EFS and OS, our study failed to show any significant correlation.Conclusion: The late stage at presentation of our population encourages the need for national screening program. The main cause of cervical cancer is HPV reflected by positive P16 similar to international literature. In our study the failure to reach a significant correlation with survival may be due the small sample size.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76035819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-09DOI: 10.31557/apjcb.2023.8.1.31-37
Vinita Pant, Munmun Harlalka
Background: PD-L1 IHC test is used as a predictive biomarker using FDA-approved assays to select patients likely to benefit from immunotherapy in several advanced-stage tumors. We aim to present our data regarding the prevalence and expression pattern of PD-L1 across various tumors based on site and histology and compare them with those of the reported literature. Material and Methods: A retrospective study of 301 cases of various tumors at different sites was done for PD-L1 IHC using the 22С3 pharmDx assay on the recommended platform.Results: Out of 237 non small cell lung carcinoma cases, 14.7% were squamous and 85.2% were of nonsquamous histotype, with adenocarcinomas comprising the majority (82.2%). Fifty-seven percent of non small cell lung carcinoma was PD-L1 positive, 28.6% showed high expression. Sixty percent of the squamous and 56.4% of the non-squamous histotypes showed positive immunoexpression. Amongst non-squamous types, 56.4% of adenocarcinomas and 66.6% of sarcomatoid carcinomas were positive. At metastatic sites, 54.3% of on small cell lung carcinoma were positive. In head and neck squamous cell carcinoma, the majority (10/11) of cases were from the oral cavity; 81.8% of total cases were positive, 27.2% were strong expressors. For other sites, the number of cases showing PD-L1 immunopositivity is as follows: oesophageal squamous cell carcinoma (2/6), gastric adenocarcinoma (2/6), triple negative breast carcinoma (0/3), urothelial carcinoma (2/5), gall bladder (2/5), pancreatico-biliary (2/11), and colorectal (2/17) adenocarcinomas. In these tumors, PD-L1 immunoexpression did not differ significantly by age or gender. Conclusion: Our study showed PD-L1 immunopositivity in 57% of non small cell lung carcinoma and 81.8% of head and neck squamous cell carcinoma, which is comparable to international studies. Further studies with larger sample sizes are needed to see their expression pattern in tumors at other sites and with different histologies.
{"title":"Study of PD-L1 Expression in Tumours Based on Site and Histology of Tumour – The Experience of a Tertiary Referral Laboratory","authors":"Vinita Pant, Munmun Harlalka","doi":"10.31557/apjcb.2023.8.1.31-37","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.1.31-37","url":null,"abstract":"Background: PD-L1 IHC test is used as a predictive biomarker using FDA-approved assays to select patients likely to benefit from immunotherapy in several advanced-stage tumors. We aim to present our data regarding the prevalence and expression pattern of PD-L1 across various tumors based on site and histology and compare them with those of the reported literature. Material and Methods: A retrospective study of 301 cases of various tumors at different sites was done for PD-L1 IHC using the 22С3 pharmDx assay on the recommended platform.Results: Out of 237 non small cell lung carcinoma cases, 14.7% were squamous and 85.2% were of nonsquamous histotype, with adenocarcinomas comprising the majority (82.2%). Fifty-seven percent of non small cell lung carcinoma was PD-L1 positive, 28.6% showed high expression. Sixty percent of the squamous and 56.4% of the non-squamous histotypes showed positive immunoexpression. Amongst non-squamous types, 56.4% of adenocarcinomas and 66.6% of sarcomatoid carcinomas were positive. At metastatic sites, 54.3% of on small cell lung carcinoma were positive. In head and neck squamous cell carcinoma, the majority (10/11) of cases were from the oral cavity; 81.8% of total cases were positive, 27.2% were strong expressors. For other sites, the number of cases showing PD-L1 immunopositivity is as follows: oesophageal squamous cell carcinoma (2/6), gastric adenocarcinoma (2/6), triple negative breast carcinoma (0/3), urothelial carcinoma (2/5), gall bladder (2/5), pancreatico-biliary (2/11), and colorectal (2/17) adenocarcinomas. In these tumors, PD-L1 immunoexpression did not differ significantly by age or gender. Conclusion: Our study showed PD-L1 immunopositivity in 57% of non small cell lung carcinoma and 81.8% of head and neck squamous cell carcinoma, which is comparable to international studies. Further studies with larger sample sizes are needed to see their expression pattern in tumors at other sites and with different histologies.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77793648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-09DOI: 10.31557/apjcb.2023.8.1.91-99
E. Okoturo, K. Rabiu
Background: This article discusses cervical cancer and its higher incidence in LMIC compared to HIC due to limited resources and poor prevention strategies. It is preventable through early detection of persistent high-risk HPV infection, which is a critical promoter. Screening methods have evolved from pap smear cytology to HPV-DNA testing and currently to co-testing, but these methods still result in false positives and high colposcopy referrals. p16/Ki-67 dual immunostaining was proposed as a biomarker for cervical cancer triage due to its ability to detect HPV-mediated neoplastic transformation. The aim of the study was to evaluate the sensitivity and specificity of this dual staining method through a review and meta-analysis of published data.Material and Methods: The search was based on PRISMA guidelines using specific MeSH terms and keywords. The search was limited to publications that compared p16/Ki-67 dual immunostaining to Pap cytology and/or high-risk HPV-DNA and included colposcopy biopsy results as the diagnostic standard. The study focused on diagnostic performance outcomes such as sensitivity, specificity, and diagnostic odds ratio. To be eligible for meta-analysis, a publication must report the diagnostic performance at predicting CIN2+. Results: A total of 24 studies were included in the review and 21,450 samples were used for dual immunostaining. The results showed that dual immunostaining was significantly more sensitive than pap cytology (75.9% compared to 71.1%) and had a higher specificity (79.7% compared to 64.3% for pap cytology and 48.9% for HPV-DNA). A meta-analysis showed that dual immunostaining had a higher pooled diagnostic odds-ratio compared to pap cytology and HPV-DNA, indicating a better test power. Conclusions: The study suggested that dual immunostaining is a better approach for detecting HPV-induced cervical cancer compared to traditional screening methods. The authors suggest that despite its reduced sensitivity, dual immunostaining should be considered as a promising alternative, especially in large-scale testing.
{"title":"Meta-analysis on the Diagnostic Performance of p16/Ki-67 Dual Immunostaining for Cervical Cancer Screening","authors":"E. Okoturo, K. Rabiu","doi":"10.31557/apjcb.2023.8.1.91-99","DOIUrl":"https://doi.org/10.31557/apjcb.2023.8.1.91-99","url":null,"abstract":"Background: This article discusses cervical cancer and its higher incidence in LMIC compared to HIC due to limited resources and poor prevention strategies. It is preventable through early detection of persistent high-risk HPV infection, which is a critical promoter. Screening methods have evolved from pap smear cytology to HPV-DNA testing and currently to co-testing, but these methods still result in false positives and high colposcopy referrals. p16/Ki-67 dual immunostaining was proposed as a biomarker for cervical cancer triage due to its ability to detect HPV-mediated neoplastic transformation. The aim of the study was to evaluate the sensitivity and specificity of this dual staining method through a review and meta-analysis of published data.Material and Methods: The search was based on PRISMA guidelines using specific MeSH terms and keywords. The search was limited to publications that compared p16/Ki-67 dual immunostaining to Pap cytology and/or high-risk HPV-DNA and included colposcopy biopsy results as the diagnostic standard. The study focused on diagnostic performance outcomes such as sensitivity, specificity, and diagnostic odds ratio. To be eligible for meta-analysis, a publication must report the diagnostic performance at predicting CIN2+. Results: A total of 24 studies were included in the review and 21,450 samples were used for dual immunostaining. The results showed that dual immunostaining was significantly more sensitive than pap cytology (75.9% compared to 71.1%) and had a higher specificity (79.7% compared to 64.3% for pap cytology and 48.9% for HPV-DNA). A meta-analysis showed that dual immunostaining had a higher pooled diagnostic odds-ratio compared to pap cytology and HPV-DNA, indicating a better test power. Conclusions: The study suggested that dual immunostaining is a better approach for detecting HPV-induced cervical cancer compared to traditional screening methods. The authors suggest that despite its reduced sensitivity, dual immunostaining should be considered as a promising alternative, especially in large-scale testing.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82080695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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