Human amniotic MSCs-mediated anti-inflammation of CD206hiIL-10hi macrophages alleviates isoproterenol-induced ventricular remodeling in mice.

BACKGROUND: Human amniotic mesenchymal stem cells (hAMSCs) derived from amniotic membrane have multilineage differentiation, immunosuppressive, and anti-inflammation which makes them suitable for the treatment of various diseases. OBJECTIVE: This study aimed to explore the therapeutic effect and molecular mechanism of hAMSCs in ventricular remodeling (VR). METHODS: hAMSCs were characterized by a series of experiments such as flow cytometric analysis, immunofluorescence, differentiative induction and tumorigenicity. Mouse VR model was induced by isoproterenol (ISO) peritoneally, and the therapeutic effects and the potential mechanisms of hAMSCs transplantation were evaluated by echocardiography, carboxy fluorescein diacetate succinimidyl ester (CFSE) labeled cell tracing, histochemistry, qRT-PCR and western blot analysis. The co-culturing experiments were carried out for further exploring the mechanisms of hAMSCs-derived conditioned medium (CM) on macrophage polarization and fibroblast fibrosis in vitro. RESULTS: hAMSCs transplantation significantly alleviated ISO-induced VR including cardiac hypertrophy and fibrosis with the improvements of cardiac functions. CFSE labeled hAMSCs kept an undifferentiated state in heart, indicating that hAMSCs-mediated the improvement of ISO-induced VR might be related to their paracrine effects. hAMSCs markedly inhibited ISO-induced inflammation and fibrosis, seen as the increase of M2 macrophage infiltration and the expressions of CD206 and IL-10, and the decreases of CD86, iNOS, COL3 and αSMA expressions in heart, suggesting that hAMSCs transplantation promoted the polarization of M2 macrophages and inhibited the polarization of M1 macrophages. Mechanically, hAMSCs-derived CM significantly increased the expressions of CD206, IL-10, Arg-1 and reduced the expressions of iNOS and IL-6 in RAW264.7 macrophages in vitro. Interestingly, RAW264.7-CM remarkably promoted the expressions of anti-inflammatory factors such as IL-10, IDO, and COX2 in hAMSCs. Furthermore, the CM derived from hAMSCs pretreated with RAW264.7-CM markedly inhibited the expressions of fibrogenesis genes such as αSMA and COL3 in 3T3 cells. CONCLUSION: Our results demonstrated that hAMSCs effectively alleviated ISO-induced cardiac hypertrophy and fibrosis, and improved the cardiac functions in mice, and the underlying mechanisms might be related to inhibiting the inflammation and fibrosis during the ventricular remodeling through promoting the polarization of CD206hiIL-10hi macrophages in heart tissues. Our study strongly suggested that by taking the advantages of the potent immunosuppressive and anti-inflammatory effects, hAMSCs may provide an alternative therapeutic approach for prevention and treatment of VR clinically.

Inflammation induced by lipopolysaccharide advanced androgen receptor expression and epithelial-mesenchymal transition progress in prostatitis and prostate cancer.

BACKGROUND: To explore the mechanism of prostatic inflammation on prostate cancer (PCa) by comparing the changes of prostate epithelial cells and PCa cells in an inflammatory environment. METHODS: First, immunohistochemistry (IHC) was used to compare the level of expression of TNF-α, IL-1ß, IL-6, and TGF-ß between benign prostatic hyperplasia (BPH), prostatitis, and PCa. Then primary prostate epithelial cells were sampled from patients who were suspected of PCa and had histological prostatitis (HP) confirmed by pathological biopsy. Lipopolysaccharide (LPS) or BAY11-7082 were used to investigate the change of androgen receptor (AR) and AR-mediated transcription, epithelial-mesenchymal transition (EMT) in primary prostate epithelial cells, and lymph node carcinoma of the prostate (LNCap) cells. RESULTS: TNF-α, IL-1ß, IL-6, and TGF-ß were significantly increased in HP and PCa compared with those in BPH patients. The proliferation of primary prostate epithelial cells and LNCap cells got the inflection point at LPS 10 µg/mL. In an inflammatory environment with 10 µg/mL LPS, both primary prostate epithelial cell and LNCap cell viability increased, and AR, AR-mediated transcription, and EMT processes were significantly increased. Inhibitors of NF-κB with 10 nM BAY11-7082 decreased AR, AR-mediated transcription, and EMT processes. CONCLUSIONS: NF-κB regulates AR expression and EMT in prostatitis and PCa, and NF-κB inhibitors may have potential therapeutic value.

Modified Translabyrinthine Approach for Massive Petrous Bone Cholesteatoma Removal and Cochlear Preservation Using Latent Spaces Anterior to the Cochlea.

OBJECTIVE: Microsurgery is the reference standard treatment of petrous bone cholesteatoma (PBC). In most cases, radical removal of an extensive PBC can only be achieved at the cost of sacrificing the cochlea. Such treatment will result in the impossibility of future cochlear implantation for hearing rehabilitation purposes. To address this issue, a modification of the traditional translabyrinthine (TL) approach with endoscopic assistance has been developed for radical removal of extensive PBC with preservation of the cochlea. METHODS: From June 2017 to December 2017, 3 patients with a massive PBC underwent surgical removal using the modified TL approach by the senior author in our department. We reviewed the patient characteristics and retrospectively studied the surgical outcomes and postoperative complications. In the present report, we have described our modified TL approach in detail. RESULTS: Complete resection of the PBC and successful cochlea preservation were achieved in all 3 patients. No recurrence had developed during the follow-up period. However, various degrees of cochlear ossification were observed in 2 patients postoperatively. CONCLUSIONS: This modified TL approach provides the possibility of fully exposing the whole petrous apex without removing the cochlea in selected cases. However, the development of long-term cochlear ossification requires further investigation to allow for successful cochlear implantation.

High IFIT1 expression predicts improved clinical outcome, and IFIT1 along with MGMT more accurately predicts prognosis in newly diagnosed glioblastoma.

Interferon-induced protein with tetratricopeptide repeat 1 (IFIT1) plays a key role in growth suppression and apoptosis promotion in cancer cells. Interferon was reported to induce the expression of IFIT1 and inhibit the expression of O-6-methylguanine-DNA methyltransferase (MGMT).This study aimed to investigate the expression of IFIT1, the correlation between IFIT1 and MGMT, and their impact on the clinical outcome in newly diagnosed glioblastoma. The expression of IFIT1 and MGMT and their correlation were investigated in the tumor tissues from 70 patients with newly diagnosed glioblastoma. The effects on progression-free survival and overall survival were evaluated. Of 70 cases, 57 (81.4%) tissue samples showed high expression of IFIT1 by immunostaining. The χ(2) test indicated that the expression of IFIT1 and MGMT was negatively correlated (r = -0.288, P = .016). Univariate and multivariate analyses confirmed high IFIT1 expression as a favorable prognostic indicator for progression-free survival (P = .005 and .017) and overall survival (P = .001 and .001), respectively. Patients with 2 favorable factors (high IFIT1 and low MGMT) had an improved prognosis as compared with others. The results demonstrated significantly increased expression of IFIT1 in newly diagnosed glioblastoma tissue. The negative correlation between IFIT1 and MGMT expression may be triggered by interferon. High IFIT1 can be a predictive biomarker of favorable clinical outcome, and IFIT1 along with MGMT more accurately predicts prognosis in newly diagnosed glioblastoma.

The vascular delta-like ligand-4 (DLL4)-Notch4 signaling correlates with angiogenesis in primary glioblastoma: an immunohistochemical study.

Delta-like ligand-4 (DLL4)-Notch signaling is known to play a pivotal role in the regulation of tumor angiogenesis. We had previously found that DLL4 was overexpressed, while Notch1 receptor, which binds to DLL4 during angiogenesis, was absent in the majority of human primary glioblastomas. Thus, DLL4-Notch signaling pathway in the regulation of tumor angiogenesis in primary glioblastoma remains unknown. Tumor tissues from 70 patients with primary glioblastoma were analyzed by immunohistochemistry for expression of components of DLL4-Notch signaling, vascular endothelial growth factor (VEGF), and microvessel density (MVD). Immunohistochemistry results showed that the positive staining of DLL4 and Notch4 was primarily distributed in tumor vascular endothelial cells but rarely detected in tumor cells. However, VEGF, hairy/enhancer of split-1 (HES1; a target gene of Notch signaling), and Notch1-3 expression was seen in both tumor vascular endothelial cells and tumor cells. Univariate analysis showed that the expression levels of VEGF and DLL4, HES1, and Notch4 in tumor endothelial cells were significantly associated with MVD in primary glioblastoma (P < 0.001). Binary logistic regression analysis showed that high expression levels of DLL4, HES1, and Notch4 in tumor endothelial cells were associated with a decrease of MVD in primary glioblastoma, while MVD increased with elevated VEGF expression in contrast. In addition, DLL4, Notch4, and HES1 expression were positively correlated in tumor vascular endothelial cells (P < 0.05). We conclude that the vascular DLL4-Notch4 signaling and VEGF signaling complementing each other plays an important role in the progression of tumor angiogenesis in primary glioblastoma. Graphical abstract A, positive staining of DLL4 in human kidney; B, positive staining of VEGF in human breast cancer; C, positive staining of CD34 in human lung cancer; D, positive staining of HES1 in human breast cancer; E-H, positive staining of Notch1-4: E-F in human lung cancer; G-H in human kidney.

[Acupuncture Stimulation of Acupoints of Multiple Meridians for Patients with Diminished Ovarian Reserve of Both Yin and Yang Deficiency].

OBJECTIVE: To observe the effect of acupuncture stimulation of acupoints of the Conception Vessel, Kidney Meridian, Spleen Meridian, and Bladder Meridian on menstrual cycles and duration, and serum follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estrogen 2 (E(2)) levels in patients with diminished ovarian reserve (DOR). METHODS: A total of 96 patients with DOR of both yin and yang deficiency were randomly divided into medication group and acupuncture group (n = 48 cases in each group). Patients of the medication group were treated by Estradiol Valerate tablets, 2 mg/d on the first 10 days, and Estradiol Cyproterone, 3 mg/d from day 11 to 21, followed by 5 -7 days' rest, and the next therapeutic course, continuously for 6 months. For patients of the acupuncture group, filiform acupuncture needles were separately inserted into every 5 points of the Conceptional Vessel, Kidney, Spleen and Bladder Meridians, manipulated with uniform reinforcing and reducing methods till Deqi, and retained for 40 min. The treatment was conducted once daily for consecutive 10 days in one menstrual cycle, beginning from the 10(th) day on after menstruation, which was repeated for 6 months. The integrative scores (normal = 0, mild=2, moderate=4 and severe=6 points) of menstrual cycle, menstrual duration, amount, color, quality [blood blot or ame- nia, symptoms of traditional Chinese medicine (TCM)] were assessed according to "Guiding Principles for Clinical Trials of New Drugs of Chinese Materia Medica". Serum FSH, LH and E(2) contents were detected by Roche's electrochemical luminescence method. RESULTS: After the treatment, of the two 48 cases in the medication and acupuncture groups, 12 (25.0%) and 20 (4.7) were cured, 11 (22.9 %) and 12 (25.0 %) experienced marked improvement in their symptoms, 20 (41.7%) and 10 (20.8%) were effective, and 5 (10.4%) and 6 (12.5%) failed, with the effective rate being 89.6% and 87.5%, respectively. The integral score of TOM symptoms, menstrual cycle, serum FSH, LH and E2 contents were considerably diminished in both groups after 6 months of treatment (P<0.05), and the TOM symptom score, menstrual cycle, and serum FSH, LH and E2 levels were significantly lower in the acupuncture group than in the medication group 6 months after cease of the treatment (P<0.05), while the menstrual duration in each cycle was notably longer in both groups after the treatment, and evidently longer in the acupuncture group than in the medication group 6 months after cease of the treatment (P<0.05). No significant differences were found between the two groups in the effective rate, score of TOM symptoms, menstrual cycle and duration, and serum FSH, LH and E(2) contents following the treatment (P>0.05). CONCLUSION: Acupuncture stimulation of acupoints of the Conception Vessel, Kidney, Spleen, and Bladder Meridians is effective in improving clinical symptoms of DOR patients with deficiency of both yin and yang, and has a longer effect, which may be closely associated with its functions in lowering serum FSH, LH and E(2) levels through regulating the hypothalamic-pituitary-ovarian axis.

Peritumoral edema on magnetic resonance imaging predicts a poor clinical outcome in malignant glioma.

Peritumoral edema (PTE), one of the main characteristics of malignant glioma, is a significant contributor to the morbidity and mortality from glioma, however, a recent systematic review suggested that controversy remains with regard to its prognostic value. To further determine whether PTE was a potential prognostic factor on routine pre-operative magnetic resonance imaging (MRI) for malignant glioma, the association between survival and PTE was investigated in the present retrospective review of 109 patients with newly diagnosed supratentorial malignant glioma using MRI data from these routine scans. The Kaplan-Meier method was used to calculate overall survival (OS) in univariate analysis, and COX proportional hazards model was applied to evaluate the effect of pre-operative MRI features on OS in multivariate analysis. The PTE extent, edema shape, degree of necrosis, enhancement extent, pathological grade, patient age, Karnofsky performance status (KPS) and post-operative chemoradiotherapy were associated with OS in the patients with malignant glioma on univariate analysis. Multivariate analysis indicated that the extent of PTE and degree of necrosis shown by pre-operative MRI were independent predictors of OS, in addition to pathological grade, patient age, KPS and post-operative chemoradiotherapy. Moreover, patients with two unfavorable factors (major edema and severe necrosis) exhibited a poorer OS compared with the remainder. In summary, PTE and degree of necrosis, which are easily determined from routine MRI, can be useful for predicting a poor clinical outcome in patients with newly diagnosed malignant glioma.

STAT3 Tyr705 phosphorylation affects clinical outcome in patients with newly diagnosed supratentorial glioblastoma.

STAT3 tyrosine705 phosphorylation (p-STAT3, Tyr705), a molecular hub for several signal transduction pathways of glioma, plays a central role in glioblastoma (GBM) carcinogenesis and progression. However, it is still controversial whether p-STAT3 expression is associated with the clinical outcome of patients with glioblastoma. Such evidence would contribute to further illustrate whether STAT3 inhibition is suitable for clinical treatment. Here, we examined the expression of p-STAT3 in the tumor tissues from 90 patients with newly diagnosed supratentorial GBM via immunohistochemical technique and evaluated the influences of its expression on progression-free survival (PFS) and overall survival (OS) using the Kaplan-Meier curve and COX proportional hazards regression model. Immunohistochemical assay indicated increased expression of p-STAT3 in GBM tissue compared to adjacent normal brain tissue without p-STAT3 expression. There were no observed associations between p-STAT3 expression and patients' gender (P = 0.660), age (P = 0.867) or preoperative Karnofsky Performance Status (KPS) (P = 0.121). Univariate survival analysis revealed significant correlations of high p-STAT3 expression with shorter PFS (P = 0.012) and OS (P = 0.009). Multivariate survival analysis confirmed high p-STAT3 expression as a significant prognostic indicator for shorter PFS (HR 2.158, P = 0.019) and OS (HR 2.120, P = 0.031), independent of age, KPS and chemoradiotherapy. In summary, the high percentage of p-STAT3 positive tumor cells is a significant independent prognostic indicator for poor clinical outcome in patients with GBM, in addition to advanced age, poor performance status and nonstandard chemoradiotherapy, suggesting that STAT3 might be as a promising therapeutic target in GBM.

Keratinizing squamous cell carcinoma of the cervix in a sexually inexperienced woman: a case report.

BACKGROUND: Even though cervical cancer is largely considered to be a sexually transmitted disease with a viral etiology, other modes of transmission are theoretically possible. CASE: A 38-year-old woman with cervical squamous cell carcinoma adamantly denied having ever had sexual intercourse due to personal, religious and cultural beliefs. CONCLUSION: Because the human papillomavirus may be spread via nonsexual means, Pap smear screening in sexually active and inexperienced women is important.