{"title":"Bombesin stimulates dorsal raphe nucleus serotonergic neurons via a mechanism involving BB1 receptors.","authors":"Eliyahu Dremencov, Daniil Grinchii, Xia Zhang, Zul Merali","doi":"10.4149/gpb_2025007","DOIUrl":"10.4149/gpb_2025007","url":null,"abstract":"<p><p>The involvement of serotonin (5-HT) in mood and appetite regulation is well established. This neurotransmitter is released from the neurons located in brainstem raphe nuclei. The excitability of the raphe 5-HT neurons, determining 5-HT neurotransmission, is regulated by various biomolecules, among them gastroenteric hormones, such as gastrin-releasing peptide (GRP). We aimed to examine the effects of the GRP homolog bombesin, and antagonist of bombesin BB1 receptor PD 176252, on the excitability of 5-HT neurons in in vivo conditions. In order to achieve its permeability through the blood-brain barrier, bombesin was fused to the cell-membrane transduction domain of the human immunodeficiency virus-type-1 Tat protein. We found that Tat-bombesin complex increased the firing activity of 5-HT neurons; PD 176252 had an opposite effect. GRP might thus regulate 5-HT neurotransmission via a mechanism involving BB1 receptors. BB1 ligands may therefore be used for the treatment of mood and eating disorders.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":" ","pages":"253-257"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143669264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hsa_circ_0007905 as a modulator of miR-330-5p and VDAC1: Enhancing stemness and reducing apoptosis in cervical cancer stem cells.","authors":"JianPing Zheng, Yan Feng, ChaoYan Yuan","doi":"10.4149/gpb_2024049","DOIUrl":"https://doi.org/10.4149/gpb_2024049","url":null,"abstract":"<p><p>Circular RNAs (circRNAs) are covalently closed RNA structures that play a pivotal role in the initiation and progression of cervical cancer (CC). However, it is unclear how these RNAs influence cancer stem cell (CSC)-like properties in CC. Here, we performed circRNA microarray analysis and identified an intergenic circRNA, hsa_circ_0007905, that was significantly upregulated in patients with CC. Moreover, hsa_circ_0007905 was found to be highly expressed in CSC-enriched subsets of cervical cancer cell lines. Functionally, knocking down hsa_circ_0007905 suppressed proliferative, migratory invasive and self-renewal abilities, as well as stimulated apoptosis of CSCs in CC. Mechanistically, hsa_circ_0007905 functions as a \"sponge\" to inversely control miR-330-5p expression, which directly targets VDAC1. Overexpressing VDAC1 or inhibiting miR-330-5p blocked the roles of silencing hsa_circ_0007905 on CSCs. Thus, we revealed the mechanism by which hsa_circ_0007905 competitively adsorbs miR-330-5p to mediate VDAC1 expression to promote stemness and inhibit apoptosis of CSCs in CC, offering an therapeutic target for treating CC.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":"44 3","pages":"213-226"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143997070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad Budiyanto, Fasih B Ilhami, Andika P Wardana, Nora Ertanti, Sapti Puspitarini
{"title":"Crafting extract of Meniran-derived carbon decorated on zinc oxide as composite material for effective cancer treatment.","authors":"Mohammad Budiyanto, Fasih B Ilhami, Andika P Wardana, Nora Ertanti, Sapti Puspitarini","doi":"10.4149/gpb_2025003","DOIUrl":"https://doi.org/10.4149/gpb_2025003","url":null,"abstract":"<p><p>The development of new composite materials derived from plant-based carbon for biomedical applications has posed a considerable challenge over the past decades. Herein, we successfully designed and synthesized ZnO/Meniran-C from Meniran-derived carbon (Meniran-C) decorated on zinc oxide for effective cancer treatment. These composites showed crystal microparticles and provided unique optical properties with high absorbance compared to pure Meniran and ZnO under an aqueous solution which has the potential for increased electron-hole. More importantly, in vitro analysis of MDA-MB-231 cells as breast cancer cells exhibited high toxicity after incubation with ZnO/Meniran-C for 24 h, in comparison with incubation with Meniran only. Hence, these composite materials provide a novel composite from bioactive compounds Meniran-derived carbon with excellent anticancer therapy and offer significant potential to contribute to the development of cost-effective, environmentally friendly, and widely applicable cancer therapies for future applications.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":"44 3","pages":"227-234"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143974779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The expression of circSATB2, PEAK1 in non-small cell lung cancer tissue and their relationships with clinical pathological characteristics, as well as postoperative recurrence and metastasis.","authors":"Hui Li, Jiayun Shan, Longjian Huang","doi":"10.4149/gpb_2025005","DOIUrl":"https://doi.org/10.4149/gpb_2025005","url":null,"abstract":"<p><p>We studied the circSATB2 and PEAK1 expression in NSCLC tissues and their associations with clinicopathological features, recurrence, and metastasis. Tumor and adjacent tissues from 98 NSCLC patients (2019-2020) were analyzed using qPCR (circSATB2) and immunohistochemistry (PEAK1). Pearson correlation assessed circSATB2-PEAK1 mRNA relationships. Survival analysis compared high/low expression groups. Cox regression identified risk factors for recurrence/metastasis. circSATB2 and PEAK1 mRNA were upregulated in NSCLC tissues, correlating with lymph node metastasis and advanced TNM stage (IIIa). circSATB2 positively correlated with PEAK1 mRNA. High expression of both predicted poorer survival (Kaplan-Meier). Multivariate analysis identified high circSATB2, high PEAK1, lymph node metastasis, and stage IIIA as independent risk factors for postoperative recurrence/metastasis. In conclusion, elevated circSATB2 and PEAK1 in NSCLC are linked to aggressive clinicopathological features and poor prognosis, serving as biomarkers for recurrence/metastasis risk.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":"44 3","pages":"245-251"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144006287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soo Hee Lee, Kyeong-Eon Park, Yeran Hwang, Sung Il Bae, Seong-Ho Ok, Seung Hyun Ahn, Gyujin Sim, Seunghyeon Park, Ju-Tae Sohn
{"title":"Chloroquine induces endothelium-dependent nitric oxide-mediated vasodilation in isolated rat aorta.","authors":"Soo Hee Lee, Kyeong-Eon Park, Yeran Hwang, Sung Il Bae, Seong-Ho Ok, Seung Hyun Ahn, Gyujin Sim, Seunghyeon Park, Ju-Tae Sohn","doi":"10.4149/gpb_2025006","DOIUrl":"https://doi.org/10.4149/gpb_2025006","url":null,"abstract":"<p><p>Toxic doses of chloroquine induce vasodilation, which contributes to hypotension. In this study, we aimed to investigate the involvement of endothelial nitric oxide in the vasodilatory effect of chloroquine on isolated rat aortas and elucidate the underlying mechanisms. We evaluated the effects of endothelial denudation and several inhibitors, including the nitric oxide synthase inhibitor NW-nitro-L-arginine methyl ester (L-NAME), the non-specific guanylate cyclase (GC) inhibitor methylene blue, the nitric oxide-sensitive GC inhibitor 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ), and the phosphoinositide-3 kinase inhibitor wortmannin, on chloroquine-induced vasodilation in endothelium-intact aortas. The effects of chloroquine and protein phosphatase 2 (PP2) on the phosphorylation of endothelial nitric oxide synthase (eNOS), Src kinase, and caveolin-1 in human umbilical vein endothelial cells were also investigated. Chloroquine-induced vasodilation was more pronounced in endothelium-intact aortas than in endothelium-denuded ones. L-NAME, methylene blue, ODQ, and wortmannin attenuated the vasodilatory effect of chloroquine in endothelium-intact aortas. Chloroquine increased cyclic guanosine monophosphate (cGMP) levels and stimulatory eNOS phosphorylation (Ser1177) while decreasing inhibitory eNOS phosphorylation (Thr495). PP2 inhibited chloroquine-induced phosphorylation of caveolin-1 and Src kinases. These findings suggest that chloroquine-induced vasodilation is mediated by the eNOS-GC-cGMP pathway, with eNOS phosphorylation regulated by caveolin-1 and Src kinase. Methylene blue may alleviate toxic-dose chloroquine-induced vasodilation.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":"44 3","pages":"201-212"},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144000891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Myricetin protects airway epithelial cells against cigarette smoke extract-induced inflammation and oxidative stress by suppressing autophagy.","authors":"Mi Zhang, Xinyu Song, Ming Zhan","doi":"10.4149/gpb_2025002","DOIUrl":"10.4149/gpb_2025002","url":null,"abstract":"<p><p>Chronic obstructive pulmonary disease (COPD) is a common respiratory disease characterized by inflammation and oxidative stress, which is mainly caused by cigarette smoke (CS). The flavonoid myricetin was reported to exert protective effects in different diseases. This study aimed to explore the function of myricetin in COPD progression. Airway epithelial A549 cells were treated with CS extract (CSE) to establish an in vitro model, followed by the detection of inflammation, oxidative stress, and autophagy markers. Sprague-Dawley male rats were exposed to CS for 12 weeks to establish an in vivo model, followed by the evaluation of lung function parameters and lung histopathological changes. We found that myricetin relieved inflammation and oxidative stress in CSE-induced A549 cells, as demonstrated by the reduced MCP-1, IL-6, and IL-8 expression, ROS production, and MDA content and elevated SOD activity. Myricetin treatment reduced LC3B-II/LC3B-I ratio and Beclin-1 protein levels and elevated p62 protein level after CSE stimulation in A549 cells. In vivo results revealed that myricetin restored pulmonary function and ameliorated pulmonary inflammation and emphysema in CS-induced COPD rats. Collectively, the anti-inflammatory and antioxidant effects of myricetin in COPD may be attributed to its suppressive effects on autophagy.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":"44 2","pages":"139-149"},"PeriodicalIF":1.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143673800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Changjiu Tang, Ye Wan, Xiaomin Zhang, Bao Zhong, Ming Zhang
{"title":"Co-delivery of circCDR1 and temozolomide with hyaluronic acid-chitosan nanoparticles inhibits glioma progression.","authors":"Changjiu Tang, Ye Wan, Xiaomin Zhang, Bao Zhong, Ming Zhang","doi":"10.4149/gpb_2024048","DOIUrl":"10.4149/gpb_2024048","url":null,"abstract":"<p><p>Chemotherapeutic drug/gene nanoparticles (NPs) co-delivery system has great potential in tumor therapy. However, the role of circular RNA (circRNA) cerebellar degeneration-related 1 (CDR1) (circCDR1) and temozolomide (TMZ) NPs in the treatment of glioma remains unclear. circCDR1 was significantly low expressed in glioma tissues and cells. In the term of mechanism, circCDR1 could sponge miR-890 to regulate GJB6. The inhibition of circCDR1 on glioma progression could be reversed by miR-890, and the suppressive effect of miR-890 inhibitor on glioma progression also could be overturned by GJB6 silencing. CNPs could introduce TMZ and circCDR1 into glioma cells. The inhibitory effects of CNPs on glioma cell progression and tumor growth were much better than TMZ, TNPs and CNPs. Our study showed that circCDR1 could regulate the miR-890/GJB6 axis to inhibit glioma progression, and the constructed CNPs had a good inhibitory effect on glioma progression.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":"44 2","pages":"107-122"},"PeriodicalIF":1.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143673730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"LncRNA ROR promotes proliferation, immune escape, and polarization of M2 macrophages in thyroid cancer by activating the PI3K/AKT pathway.","authors":"Xueli Hu, Rong Tan, Nannan Li, Jing Liu, Senli Wen, Haipeng Tang, Yaling Jiang","doi":"10.4149/gpb_2025001","DOIUrl":"10.4149/gpb_2025001","url":null,"abstract":"<p><p>Thyroid cancer is the most prominent type of endocrine cancer. LncRNA ROR (Linc- ROR) exerts tumor regulator function in cancers. This study elucidates the action of Linc-ROR on thyroid cancer. The Linc-ROR level were investigated in 70 thyroid cancer patients. Cell viability was detected utilizing CCK-8 method. The xenograft tumor was constructed to evaluate tumor growth. The proportion of CD8+ T cells was assessed using flow cytometry. IL-10, IFN-γ, and TNF-β levels were detected utilizing ELISA assays. The Linc-ROR level was elevated in thyroid cancer patients (n = 70). The up-regulated Linc-ROR was associated with poor overall survival (p = 0.0315), lymph node metastasis (p = 0.027), and TNM stage (p = 0.016). Linc-ROR silencing restrained cell proliferation and tumor growth (p < 0.01). Additionally, silenced Linc-ROR suppressed the immune escape of thyroid cancer cells and polarization of M2 macrophages (p < 0.01). Moreover, the PI3K/ AKT signaling mediated the action of silenced Linc-ROR on thyroid cancer proliferation, immune escape, and M2 macrophage polarization (p < 0.05). Linc-ROR may be a valuable target for thyroid cancer management. The limitations of this research are that the action of Linc-ROR on the tumor microenvironment has not been investigated in the animal model.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":"44 2","pages":"163-173"},"PeriodicalIF":1.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143673747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Monika Olszewska, Aleksandra Haduch-Sendecka, Mariusz Pietruszka
{"title":"Correction to: Determination of selected dynamic quantities of growing intact seeds of maize.","authors":"Monika Olszewska, Aleksandra Haduch-Sendecka, Mariusz Pietruszka","doi":"10.4149/gpb_2025004","DOIUrl":"10.4149/gpb_2025004","url":null,"abstract":"<p><p>This corrects the article DOI: 10.4149/gpb_2017058.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":"44 2","pages":"185"},"PeriodicalIF":1.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143673739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiayun Ge, Zhihong Zhang, Guohui Shao, Dong Wei, Bo Tang, Zhitian Shi, Renchao Zou, Xin Wang
{"title":"miR-145-5p modulates CDCA3 to overcome gemcitabine resistance in pancreatic cancer.","authors":"Jiayun Ge, Zhihong Zhang, Guohui Shao, Dong Wei, Bo Tang, Zhitian Shi, Renchao Zou, Xin Wang","doi":"10.4149/gpb_2024047","DOIUrl":"10.4149/gpb_2024047","url":null,"abstract":"<p><p>miR-145-5p regulates drug sensitivity in various cancer types and is also expressed at significantly low levels in pancreatic cancer (PC), but its role in PC resistance to gemcitabine is not yet clear. This study revealed low expression of miR-145-5p in the PC gemcitabine-resistant cell lines SW1990/GEM and PANC-1/GEM. The overexpression of miR-145-5p inhibited the proliferation and migration of PC drug-resistant cells. Mechanistically, miR-145-5p overexpression increased the sensitivity of PC drug-resistant cells to gemcitabine through the inhibition of CDCA3, thereby inhibiting the proliferation and migration of PC drug-resistant cells. Our study indicated that the upregulation of miR-145-5p expression might be an effective target for improving the treatment efficacy of PC.</p>","PeriodicalId":12514,"journal":{"name":"General physiology and biophysics","volume":"44 2","pages":"175-183"},"PeriodicalIF":1.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143673798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}