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1.
Eur Urol Open Sci ; 65: 21-28, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38974460

ABSTRACT

Background and objective: The aim of our study was to investigate whether repeat prostate-specific antigen (PSA) testing as currently recommended improves risk stratification for men undergoing magnetic resonance imaging (MRI) and targeted biopsy for suspected prostate cancer (PCa). Methods: Consecutive men undergoing MRI and prostate biopsy who had at least two PSA tests before prostate biopsy were retrospectively registered and assigned to a development cohort (n = 427) or a validation (n = 174) cohort. Change in PSA level was assessed as a predictor of clinically significant PCa (csPCa; Gleason score ≥3 + 4, grade group ≥2) by multivariable logistic regression analysis. We developed a multivariable prediction model (MRI-RC) and a dichotomous biopsy decision strategy incorporating the PSA change. The performance of the MRI-RC model and dichotomous decision strategy was assessed in the validation cohort and compared to prediction models and decision strategies not including PSA change in terms of discriminative ability and decision curve analysis. Results: Men who had a decrease on repeat PSA testing had significantly lower risk of csPCa than men without a decrease (odds ratio [OR] 0.3, 95% confidence interval [CI] 0.16-0.54; p < 0.001). Men with an increased repeat PSA had a significantly higher risk of csPCa than men without an increase (OR 2.97, 95% CI 1.62-5.45; p < 0.001). Risk stratification using both the MRI-RC model and the dichotomous decision strategy was improved by incorporating change in PSA as a parameter. Conclusions and clinical implications: Repeat PSA testing gives predictive information regarding men undergoing MRI and targeted prostate biopsy. Inclusion of PSA change as a parameter in an MRI-RC model and a dichotomous biopsy decision strategy improves their predictive performance and clinical utility without requiring additional investigations. Patient summary: For men with a suspicion of prostate cancer, repeat PSA (prostate-specific antigen) testing after an MRI (magnetic resonance imaging) scan can help in identifying patients who can safely avoid prostate biopsy.

2.
Cureus ; 16(6): e62676, 2024 Jun.
Article in English | MEDLINE | ID: mdl-39036207

ABSTRACT

Prostate adenocarcinoma (PCa) is the second most common cause of cancer in men, but metastases to the ureter are exceedingly rare. Here, we present two cases with differing clinical symptoms and treatment courses but ultimately the same diagnosis. The two cases presented here had differing clinical presentations: one with lower urinary tract symptoms and the other with hydronephrosis. Systemic therapy with a luteinizing hormone-releasing hormone (LHrH) agonist appears to help with clinical outcomes in both cases reported here. Although such cases are extremely rare, consideration as a differential and early detection can impact a patient's clinical outcomes. For patients with PCa that present with obstructive urinary symptoms, there may be a clinical benefit to perform a thorough metastatic work-up for seeding to other parts of the urinary tract.

3.
J Natl Cancer Inst ; 2024 Jun 04.
Article in English | MEDLINE | ID: mdl-38833676

ABSTRACT

BACKGROUND: The role of Th17 cells in prostate cancer (PCa) is not fully understood. The transcription factor BATF controls the differentiation of Th17 cells. Mice deficient in Batf do not produce Th17 cells. METHODS: In this study, we aimed to characterize the role of Batf-dependent Th17 cells in PCa by crossbreeding Batf knockout (Batf-/-) mice with mice conditionally mutant for Pten. We found that Batf-/- mice had changes in the morphology of prostate epithelial cells compared to normal mice, and Batf-/- mice deficient in Pten (named Batf-) had smaller prostate size and developed fewer invasive prostate adenocarcinomas than Pten-deficient mice with Batf expression (named Batf+). The prostate tumors in Batf- mice showed reduced proliferation, increased apoptosis, decreased angiogenesis and inflammatory cell infiltration, and activation of NF-κB signaling. Moreover, Batf- mice showed significantly reduced IL-23/IL-23R signaling. In the prostate stroma of Batf- mice, IL-23R-positive cells were decreased considerably compared to Batf+ mice. Splenocytes and prostate tissues from Batf- mice cultured under Th17 differentiation conditions expressed reduced IL-23/IL-23R than cultured cells from Batf+ mice. Anti-IL23p19 antibody treatment of Pten-deficient mice reduced prostate tumors and angiogenesis compared to control IgG-treated mice. In human prostate tumors, BATF mRNA level was positively correlated with IL23A and IL-23R but not RORC. CONCLUSION: Our novel findings underscore the crucial role of IL-23/IL23R signaling in mediating the function of Batf-dependent Th17 cells, thereby promoting PCa initiation and progression. This highlights the Batf-IL-23R axis as a promising target for the development of innovative strategies for PCa prevention and treatment.

4.
Discov Oncol ; 15(1): 203, 2024 Jun 02.
Article in English | MEDLINE | ID: mdl-38825615

ABSTRACT

Alterations in telomeres constitute some of the earliest occurrences in the tumourigenesis of prostate adenocarcinoma (PRAD) and persist throughout the progression of the tumour. While the activity of telomerase and the length of telomeres have been demonstrated to correlate with the prognosis of PRAD, the prognostic potential of telomere-related genes (TRGs) in this disease remains unexplored. Utilising mRNA expression data from the Cancer Genome Atlas (TCGA), we devised a risk model and a nomogram to predict the survival outcomes of patients with PRAD. Subsequently, our investigations extended to the relationship between the risk model and immune cell infiltration, sensitivity to chemotherapeutic drugs, and specific signalling pathways. The risk model we developed is predicated on seven key TRGs, and immunohistochemistry results revealed significant differential expression of three TRGs in tumours and paracancerous tissues. Based on the risk scores, PRAD patients were stratified into high-risk and low-risk cohorts. The Receiver operating characteristics (ROC) and Kaplan-Meier survival analyses corroborated the exceptional predictive performance of our novel risk model. Multivariate Cox regression analysis indicated that the risk score was an independent risk factor associated with Overall Survival (OS) and was significantly associated with T and N stages of PRAD patients. Notably, the high-risk group exhibited a greater response to chemotherapy and immunosuppression compared to the low-risk group, offering potential guidance for treatment strategies for high-risk patients. In conclusion, our new risk model, based on TRGs, serves as a reliable prognostic indicator for PRAD. The model holds significant value in guiding the selection of immunotherapy and chemotherapy in the clinical management of PRAD patients.

5.
Ann Nucl Med ; 2024 Jun 01.
Article in English | MEDLINE | ID: mdl-38822897

ABSTRACT

PURPOSE: To establish and validate novel predictive models for predicting bone metastasis (BM) in newly diagnosed prostate adenocarcinoma (PCa) via single-photon emission computed tomography radiomics. METHOD: In a retrospective review of the clinical single-photon emission computed tomography (SPECT) database, 176 patients (training set: n = 140; validation set: n = 36) who underwent SPECT/CT imaging and were histologically confirmed to have newly diagnosed PCa from June 2016 to June 2022 were enrolled. Radiomic features were extracted from the region of interest (ROI) in a targeted lesion in each patient. Clinical features, including age, total prostate-specific antigen (t-PSA), and Gleason grades, were included. Statistical tests were then employed to eliminate irrelevant and redundant features. Finally, four types of optimized models were constructed for the prediction. Furthermore, fivefold cross-validation was applied to obtain sensitivity, specificity, accuracy, and area under the curve (AUC) for performance evaluation. The clinical usefulness of the multivariate models was estimated through decision curve analysis (DCA). RESULTS: A radiomics signature consisting of 27 selected features which were obtained by radiomics' LASSO treatment was significantly correlated with bone status (P < 0.01 for both training and validation sets). Collectively, the models showed good predictive efficiency. The AUC values ranged from 0.87 to 0.98 in four models. The AUC values of the human experts were 0.655 and 0.872 in the training and validation groups, respectively. Most radiomic models showed better diagnostic accuracy than human experts in the training and validation groups. DCA also demonstrated the superiority of the radiomics models compared to human experts. CONCLUSION: Radiomics models are superior to humans in differentiating between benign bone and prostate cancer bone metastases; it can be used to facilitate personalized prediction of BM in newly diagnosed PCa patients.

6.
Cell Biol Int ; 48(8): 1169-1184, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38818762

ABSTRACT

It was imperative to identify latent biomarkers pertinent to malignancies, given the pivotal role targeted molecular therapies play in tumor treatment investigations. This study aimed to assess the validity of HAUS1 as an indicator for survival prognosis and immune responses in prostate adenocarcinoma (PRAD) via single-cell and bulk RNA-sequencing. Related data on HAUS1 expression in PRAD were obtained from online databases, followed by comprehensive analyses to delineate its associations with survival prognosis, implicated pathways, and immune responses. Besides, the expression pattern of HAUS1 in PRAD was also verified in vitro, by using qRT-PCR, Western blot analysis, and immunohistochemistry. We found HAUS1 was downregulated in PRAD compared with normal tissues, as verified in vitro by qRT-PCR, Western blot, and immunohistochemistry (p < 0.05). Single-cell RNA-sequencing analysis indicated that HAUS1 had relatively higher expressions in B cells, Mono/Macro cells, and Endothelial cells compared with other cell types. Cox regression analysis revealed HAUS1 could serve as an independent indicator for the overall survival prognosis of PRAD (p < 0.05). Spearman correlation analyses revealed HAUS1 was closely related to the tumor microenvironment, immune cell infiltration levels, immune checkpoints, and immune cell pathways (p < 0.05). Furthermore, HAUS1 expression was found to be closely related to the immunotherapeutic response of patients receiving clinical intervention (p < 0.05). Collectively, our findings underscored the significant role of HAUS1 in PRAD prognosis and immune response, thereby presenting a novel and promising avenue for investigating the clinical utility of immunotherapy in PRAD.


Subject(s)
Adenocarcinoma , Mitosis , Prostatic Neoplasms , Sequence Analysis, RNA , Single-Cell Analysis , Tumor Microenvironment , Humans , Male , Prostatic Neoplasms/genetics , Prostatic Neoplasms/immunology , Prostatic Neoplasms/pathology , Prostatic Neoplasms/metabolism , Prognosis , Adenocarcinoma/genetics , Adenocarcinoma/immunology , Adenocarcinoma/pathology , Adenocarcinoma/metabolism , Single-Cell Analysis/methods , Tumor Microenvironment/immunology , Mitosis/genetics , Biomarkers, Tumor/genetics , Biomarkers, Tumor/metabolism , Gene Expression Regulation, Neoplastic
7.
Cureus ; 16(4): e58597, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38765351

ABSTRACT

We report a rare case of a 59-year-old male with a history of metastatic prostate cancer presenting with acute onset dyspnea due to extensive bilateral pleural effusions. This case highlights the rarity of metastatic prostate cancer with pleural involvement and underscores the importance of accurate diagnosis using cytopathology and immunohistochemical staining.

8.
Clin Case Rep ; 12(5): e8884, 2024 May.
Article in English | MEDLINE | ID: mdl-38725932

ABSTRACT

Nuclear matrix protein (NXP-2) positive amyopathic dermatomyositis (DM) may present without classic symptoms like muscle weakness, dysphagia, and edema, and mimic conditions like cutaneous lupus. Given DM's association with malignancy and interstitial lung disease, prompt and accurate diagnosis is important. Testing for myositis-specific antibodies aids diagnosis in ambiguous cases.

9.
Heliyon ; 10(10): e30941, 2024 May 30.
Article in English | MEDLINE | ID: mdl-38779031

ABSTRACT

Prostate adenocarcinoma (PRAD), driven by both genetic and epigenetic factors, is a common malignancy that affects men worldwide. We aimed to identify and characterize differentially expressed epigenetic-related genes (ERGs) in PRAD and investigate their potential roles in disease progression and prognosis. We used PRAD samples from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) to identify prognosis-associated ERGs. Thirteen ERGs with two distinct expression profiles were identified through consensus clustering. Gene set variation analysis highlighted differences in pathway activities, particularly in the Hedgehog and Notch pathways. Higher epigenetic scores correlated with favorable prognosis and improved immunotherapeutic response. Experimental validation underscored the importance of CBX3 and KAT2A, suggesting their pivotal roles in PRAD. This study provides crucial insights into the epigenetic scoring approach and presents a promising prognostic tool, with CBX3 and KAT2A as key players. These findings pave the way for targeted and personalized interventions for the treatment of PRAD.

10.
World J Nucl Med ; 23(1): 46-48, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38595837

ABSTRACT

An unusual and unique case of prostate adenocarcinoma with involvement of bilateral inferior gluteal lymph nodes is reported. The patient was a 42-year-old male, with conventional prostatic adenocarcinoma (Gleason score: 5 + 4 = 9), who, during disease progression with rising serum prostate specific antigen levels following medical androgen deprivation therapy, demonstrated new prostate-specific membrane antigen expressing metastatic intermuscular deposits in the bilateral gluteal region, subsequently proven to be bilateral inferior gluteal nodal metastasis. A therapeutic implication to this may be that these nodes usually fall beyond the range covered by the therapeutic radiation field coverage where external radiotherapy is the advocated modality of choice and are not easily reachable through standard surgical procedures. As a result, they could have an impact on the way patients are clinically treated and on their prognosis.

11.
J West Afr Coll Surg ; 14(2): 188-191, 2024.
Article in English | MEDLINE | ID: mdl-38562398

ABSTRACT

Context: Worldwide, urological disorders vary from one topography to another. An in-depth understanding of their distribution in each region could serve as a basis for the distribution of manpower, equipment's alongside determine policy formulation and training. Aims: This study enumerates the annual frequency and distribution of urological disorders at the Federal Medical Centre, Keffi. Settings and Design: A cross-sectional retrospective study from November 2021 to November 2022 of all new patients who attended the urology outpatient clinic, emergency department as well as those who had surgical interventions at the Federal Medical Centre, Keffi, Nasarawa State. Materials and Methods: The pertinent records were extracted from the patient's electronic medical records (EMR) and entered into a semistructured questionnaire. Statistical Analysis Used: Data were analyzed using the SPSS software version 20. Results: A total of 452 new patients were seen over the study period. There were 428 (94.5%) males and 24 (5.3%) females, with a male-to-female ratio of 17.8:1. The median age was 58 years, with the age range of 2-97 years. Urological emergencies were seen in 13.5% patients. Ninety-eight percent of cases were acquired, whereas 1.8% were of congenital etiology. Overall, the most commonly diagnosed urologic diseases among new patients in order of decreasing frequency were benign prostatic enlargement (BPE) (54.7%), urethral stricture disease (11.0%), upper tract urinary calculi (6.3%), prostate adenocarcinoma (5.9%), and male infertility (4.3%). Conclusions: BPE, urethral stricture disease, upper tract urinary calculi, prostate adenocarcinoma, and male infertility are common in our environment. An understanding of the urological disease distribution will enhance policy-making and drive manpower needs inspiring core areas of subspecialization with a view at improving the standard of urological care and promoting collaboration with international organizations and funding agencies.

12.
Oxf Med Case Reports ; 2024(4): omae027, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38680777

ABSTRACT

The presence of lymph node metastases in prostate adenocarcinoma is a poor prognostic sign, and mortality rates are often high. Inguinal lymph node metastases are an unusual presentation of advanced disease, and they can be easily misinterpreted with other diseases. We present a case of a 63-year-old patient with no previous symptoms and signs of prostate disorder with a right-sided inguinal lump and abdominal pain. The CT scan showed right inguinal and retroperitoneal lymphadenopathy. Elevated PSA serum levels, digital rectal examination, and skeletal scintigraphy with 99mTc-MDP favored the diagnosis of metastatic prostate adenocarcinoma. Since the patient denied prostate biopsy, a dissection of the right inguinal nodes was performed. Histopathological findings confirmed metastatic prostate adenocarcinoma. The treatment was hormonal and bisphosphonate therapy, with objective posttreatment improvement. Based on this case, it can be concluded that inguinal and generalized lymphadenopathy are potential initial manifestations of metastatic prostate adenocarcinoma in male patients.

13.
J Cancer ; 15(9): 2678-2690, 2024.
Article in English | MEDLINE | ID: mdl-38577608

ABSTRACT

Background: Prostate adenocarcinoma (PRAD) is one of the most common cancers in male. Increasing evidences pointed out that Neutrophil Extracellular Traps (NETs) play an important role in tumor angiogenesis, tumor metastasis and drug resistance. However, limited systematic studies regarding the role of NETs in PRAD have been performed. Identification of biomarkers based on NETs might facilitate risk stratification which help optimizing the clinical strategies. Methods: NETs-related genes with differential expressions were identified between PRAD and adjacent normal tissues in TCGA-PRAD dataset. Consensus cluster analysis was performed to determine the PRAD subtypes based on the different-expressed NETs-related genes. The difference of pathway enrichment, infiltrating immune cell and genomic mutation were also evaluated between subtypes. LASSO cox regression analysis was conducted to construct a NETs-related prognostic signature. Result: We identified 19 NETs related genes with differential expressions between PRAD and adjacent normal tissue in TCGA-PRAD dataset. Two significant subtypes were identified based on these 19 genes by consensus cluster analysis, namely subtype 1 and subtype 2. Significant differences in prognosis, immune infiltration and tumor mutation burden were observed in subtypes. LASSO Cox regression analysis identified a NETs-associated prognostic signature including 13 genes, and this signature had a good performance in predicting the progression-free survival of PRAD patients. Further integrated analysis indicated that MMP9 mostly expressed in Mono/Macrophage cells might play a role in regulating NETs formation via neutrophil activation in PRAD. Conclusion: To sum up, the current study identified two NETs-related molecular subtypes and based on which constructed a prognostic signature for PRAD.

14.
J Neuroendocrinol ; 36(6): e13393, 2024 06.
Article in English | MEDLINE | ID: mdl-38622851

ABSTRACT

Peptide receptor radionuclide therapy (PRRT) can be a very useful treatment for patients with neuroendocrine neoplasms and metastatic castration-resistant prostate cancer but it is routinely avoided in those with advanced kidney disease because it can adversely affect the renal function. Accordingly, no clear guidelines exist on the use of PRRT for patients on hemodialysis (HD). We performed a literature review to identify publications on HD patients who received PRRT with Lutetium-177 (Lu177) Dotatate and Y-90 and obtained information on Lu177 pharmacokinetics and early testing data from the manufacturer. We also perused the most recent North American Neuroendocrine Tumor Society (NANETS)/European Neuroendocrine Tumor Society (ENETS) recommendations. Seven relevant publications with a total of 15 patients were included. Patients received dose-adjusted fractions of PRRT with HD occurring usually within 24 h. There were no immediate or long-term serious adverse events attributed to the radioligand, although data was limited. Using available evidence and input from a multidisciplinary group, we have created an institutional workflow. Dose-adjusted PRRT can be offered to patients undergoing HD under careful, multidisciplinary supervision.


Subject(s)
Kidney Failure, Chronic , Lutetium , Neuroendocrine Tumors , Radiopharmaceuticals , Humans , Radiopharmaceuticals/therapeutic use , Radiopharmaceuticals/administration & dosage , Lutetium/therapeutic use , Neuroendocrine Tumors/radiotherapy , Kidney Failure, Chronic/therapy , Algorithms , Male , Octreotide/analogs & derivatives , Octreotide/therapeutic use , Radioisotopes/therapeutic use , Renal Dialysis/methods , Receptors, Peptide/metabolism , Organometallic Compounds
15.
Int J Clin Exp Pathol ; 17(3): 78-82, 2024.
Article in English | MEDLINE | ID: mdl-38577694

ABSTRACT

Transformation of primary prostate adenocarcinoma to squamous cell carcinoma after initial treatment with chemotherapy and hormonal therapy is extremely rare and typically results in rapid treatment-refractory disease progression and death. Here, we present a case of a 64-year-old man who was initially diagnosed with metastatic prostate adenocarcinoma (positive PSA and NKX3.1 stains, total PSA 747.2 ng/ml) to the thoracic spine (T8) in 2019. The patient received androgen deprivation therapy and chemotherapy with good response (PSA 2.53 ng/ml). In 2022, the patient had a tumor resection from the left humerus with a consequent fracture. Pathology showed pure squamous carcinoma without any adenocarcinoma component (PSA and NKX3.1 stains negative and weak p504s stain, PSA 19.82 ng/ml). Given the patient's history of metastatic prostate adenocarcinoma and no history of any other malignancies, a diagnosis of squamous carcinoma transformed from prostate adenocarcinoma was rendered. The patient passed away in 2023. Molecular profiling identified the same TP53 mutation and two variants of uncertain significance in both specimens, suggesting the same primary. However, there was CCND3 amplification and absence of the TMPRSS2::ETV4 fusion in the 2022 specimen, which may be associated with squamous transformation and poor prognosis. A microarray might be beneficial to confirm loss of the TMPRSS2::ETV4 fusion. This case illustrates the rare occurrence of squamous transformation in prostate adenocarcinoma and the aggressive clinical course, and need for more therapy guidance and prognostic studies. It also highlights the importance of molecular profiling to provide insights into the pathogenesis of histologic transformation.

16.
World J Gastroenterol ; 30(7): 770-773, 2024 Feb 21.
Article in English | MEDLINE | ID: mdl-38515950

ABSTRACT

Liver metastases can appear in different forms in magnetic resonance imaging. Contrary to popular belief, while radiologists report hypovascular or hypervascular metastatic lesions, exceptional examples may be detected in various tumors. The aim of this article is to improve this review by presenting rare and atypical examples of liver metastasis, as well as cases that might potentially be misdiagnosed as metastases during the process of differential diagnosis.


Subject(s)
Liver Neoplasms , Humans , Liver Neoplasms/diagnostic imaging , Liver Neoplasms/therapy , Magnetic Resonance Imaging/methods
17.
J Surg Case Rep ; 2024(3): rjae130, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38476454

ABSTRACT

It is quite unusual to have numerous primary malignant tumors at the same time in the same patient. These cancers are classified as metachronous or synchronous. The occurrence of synchronous urologic tumors poses diagnostic and treatment challenges and has always been a subject of controversy in the clinical decision-making process. Unfortunately, no clear standardized management protocols for these patients exist. Therefore, diagnosis and treatment may be difficult, especially with few resources. We present a 75-year-old man with simultaneous prostate and kidney cancers successfully treated at our center. This is one of the rare cases in the English literature with two primary urologic cancers.

18.
Clin Case Rep ; 12(3): e8615, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38464579

ABSTRACT

Key Clinical Message: Unilateral tongue atrophy can be a rare and crucial early indicator of metastatic prostate cancer, highlighting the need for vigilant monitoring in clinical assessments. This case underscores the importance of considering cranial nerve involvement, especially the twelfth, for timely intervention and comprehensive patient care. Abstract: Prostate cancer, ranking among the most prevalent cancers, often manifests with skeletal metastases. Cranial nerve involvement, particularly the twelfth cranial nerve (XII), as an initial presentation is exceptionally rare. This case report outlines a unique instance of unilateral tongue atrophy as the primary clinical manifestation in a patient diagnosed with metastatic prostate cancer. A 54-year-old man presented with dysarthria and progressive weakness, later revealing signs of hypoglossal nerve paralysis, unilateral tongue atrophy, and skeletal metastases involving the base of the skull. Imaging studies, including CT and MRI, confirmed diffuse lytic lesions and cranial nerve entrapment. Further investigations identified elevated PSA levels, confirming acinar prostate adenocarcinoma. The patient underwent hormone therapy due to the poor prognosis. Prostate cancer's skeletal metastases are well-documented, but cranial nerve involvement remains rare, particularly with isolated XII nerve manifestation. The discussion emphasizes the diagnostic challenges, imaging techniques' roles, and the impact on prognosis and quality of life. This case underscores the rarity of unilateral XII nerve involvement as the initial presentation of metastatic prostate cancer. Clinicians should consider this manifestation, especially in men over 40, warranting a thorough diagnostic approach, including PSA measurement and referral for appropriate oncological and urological interventions.

19.
Prostate ; 84(8): 738-746, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38528654

ABSTRACT

BACKGROUND: The occurrence of castration-resistant prostate cancer (CRPC) varies in patients with advanced prostate cancer (PCa) undergoing androgen deprivation therapy (ADT). The rate of occurrence of CRPC may be related to the presence of prostate cancer stem cells (CSC). Thus, this study aims to evaluate the presence of CSC markers (CD44 and CD133) in histopathology tissue at the time of diagnosis and their correlation with the occurrence of CRPC in patients with advanced PCa within 2 years of ADT. METHOD: A retrospective case-control study was conducted to evaluate the incidence of CRPC within 2 years. The inclusion criteria were patients with PCa who had received treatment with ADT and a first-generation anti-androgen (AA) for 2 years. We classified patients based on whether they developed CRPC within 2 years (CRPC) of the therapy or did not experience CRPC within 2 years (non-CRPC) of the therapy. We performed immunohistochemical (IHC) staining for CD44 and CD133 on the prostate biopsy tissue samples. RESULTS: Data were collected from records spanning 2011-2019. We analyzed a total of 65 samples, including 22 patients with CRPC and 43 patients with non-CRPC who had received treatment with LHRH agonists and AA for up to 2 years. Our findings showed a significant H-score difference in CD44 protein expression between CRPC prostate adenocarcinoma samples 869 (200-1329) and non-CRPC 524 (154-1166) (p = 0.033). There was no significant difference in CD133 protein expression between the two groups (p = 0.554). However, there was a significant difference in the nonoccurrence of CRPC between the high expressions of both CD44 and CD133 groups with other expressions of CD44/CD133 groups (25% vs. 75%; p = 0.011; odds ratio = 4.29; 95% confidence interval [1.34, 13.76]). CONCLUSION: This study found a low expression of at least one CD44/CD133 protein in the patients without early occurrence of CRPC. This result might suggest that CD44/CD133 may function as a potential prognostic marker for PCa, especially in a low expression, to identify patients who have a better prognosis regarding the occurrence of early CRPC.


Subject(s)
AC133 Antigen , Androgen Antagonists , Biomarkers, Tumor , Hyaluronan Receptors , Prostatic Neoplasms, Castration-Resistant , Humans , Male , Hyaluronan Receptors/metabolism , Hyaluronan Receptors/analysis , Hyaluronan Receptors/biosynthesis , Prostatic Neoplasms, Castration-Resistant/pathology , Prostatic Neoplasms, Castration-Resistant/metabolism , AC133 Antigen/metabolism , Retrospective Studies , Aged , Prognosis , Case-Control Studies , Androgen Antagonists/therapeutic use , Biomarkers, Tumor/metabolism , Middle Aged , Aged, 80 and over , Neoplastic Stem Cells/metabolism , Neoplastic Stem Cells/pathology
20.
J Surg Case Rep ; 2024(2): rjae014, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38328455

ABSTRACT

Dural metastases of prostate adenocarcinoma are an extremely rare complication and may mimic intracranial hematoma. Preoperatively diagnosis may be difficult due to similarities in symptoms and radiological appearance. We present a 65-year-old man admitted to the ED with a history of headache, nausea, vomiting, vertigo, diplopia, as well as numbness of his left lower extremity. Past medical history confirmed metastatic prostate cancer disease. After computed tomography and contrast computed tomography, the consulting radiologist diagnosed a chronic subdural hematoma. After burr hole trephination and dural opening, tumorous mass was detected. Histopathologic samples were taken. Histopathological examination was consistent with metastatic adenocarcinoma of the prostate. Although rare, dural metastases need to be included in oncological patients presenting in the ED with symptoms and radiological imaging suggesting hematoma. Both neurooncological and neurosurgical consultations are essential in order to apply the best treatment strategy.

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