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Seedling potential of trees species along the elevational gradient in temperate hill forest of central Nepal

Journal of Mountain Science 2024年第4期21卷 1329-1344页

作者： dani Ram Sharan BANIYA Chitra Bahadur Central Department of Botany Tribhuvan UniversityKirtipur 44618Nepal

Regeneration status of tree species along elevation gradient in temperate hill forest was not understood *** research examined the tree diversity and its regeneration patterns along an elevation gradient in temperate hill forest,central *** were collected from 300 sample plots within vertical elevation bands of 10,ranging from 1365 to 2450 m asl.A random sampling method was used for data collection in three seasons,winter,pre-monsoon and post monsoon *** at breast height(DBH)was used to broadly categorize the plant individual into trees,saplings and *** tree species richness ranged from 12 to 25 with density of 350 to 1200 individuals per *** richness of tree and sapling showed statistically significant unimodal pattern,which peaked at *** showed a strong and positive linear correlation with the seedling density(Deviance=0.99,plationship with sapling density(Deviance=0.95,plarly,elevations showed a statistically significant negative hump-shaped relationship with all trees,saplings and seedling stages(Deviances=0.89,0.87 and 0.57).The highest values of the Shannon-Wiener index and the lowest value of the Simpson index were found at mid-elevation for all growth *** 92%of tree species were found at regenerating stage;49%in a good renewal regeneration status,32%in fair renewal regeneration,and 11%at a poor regenerating ***,4%of tree species were reported as non-regenerating stages and 4%were newly introduced ***,the regeneration status of the study area was considered fairly well since sapling(78.5%)>seedling(10.6%)≤mature(10.9%).Among tested environmental variables,elevation and annual mean rainfall were the most influential factors in the regeneration of tree species.

关键词： Regeneration potential Chandragiri hill Altitudinal gradient Species diversity Tree species richness

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Solitary Osteogenic Exostosis of the Femur Revealed by Recurring Acute Distal Thigh Pain: About a Case

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Open Journal of Pediatrics 2024年第4期14卷 719-726页

作者： Thierno Saïdou Barry Mohamed lamine Sadou Sacko Balla Keita Sory Sidimé Moussa Condé dani.l agbo-panzo Pediatric Surgery Department Donka National Hospital (HND) of the University Hospital of Conakry Gamal Abdel Nasser University of Conakry (UGANC) of Guinea Conakry Guinea Orthopedic and Trauma Surgery Department Donka National Hospital (HND) of the Conakry University Hospital Conakry Guinea

Introduction: Solitary exostoses are the most common benign tumors of the fertile metaphyses of the long bones of children. Their radiological diagnosis of metaphyseal bone growth must be confirmed on pathological examination. These tumors can remain asymptomatic for a long time and reveal themselves during a particularly vascular complication. The objective of this study was to describe the epidemiological, diagnostic, therapeutic and evolutionary aspects of these tumors. Patient and Observation: We report the case of a 15-year-old adolescent girl, with no particular pathological history, received in the pediatric surgery department of the Donka National Hospital (HND) of the Conakry University Hospital for recurrent acute painful swelling of the lower third of the left thigh in an afebrile context accompanied by lameness and stopping school for a few days (2 - 3 days). The symptoms appear to have evolved over the past 3 years and after physical activities. It regresses with rest, analgesics and non-steroidal anti-inflammatory drugs. The notion of trauma and sickle cell disease was not reported in the patient's clinical history. It is the persistence of the symptomatology which motivates the said consultation. On palpation, a small hard mass is noted at the expense of the internal metaphysis of the left distal femur. Deep palpation of this area causes a tingling sensation and during rapid mobilization of the knee. The remainder of the orthopedic examination was unremarkable. Standard x-ray of the femur shows a bony growth with a pointed tip from the distal metaphysis of the left femur. On surgical exploration, we noted a wedge-shaped exostosis oriented towards the vastus medialis muscle. Histological examination of the surgical specimen confirms osteogenic exostosis. There is no recurrence after 2 years. Conclusion: The distal femoral metaphysis is the most common location of solitary osteochondromas in children. Their definitive diagnosis requires the histology of

关键词： Osteogenic Exostosis Osteochondromas Fertile long Bone Metaphyses Child

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The Management of Neonatal Peritonitis in the Paediatric Surgery Department of the Donka National Hospital

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Open Journal of Pediatrics 2024年第5期14卷 823-833页

作者： Mohamed lamine Sadou Sacko Thierno Saidou Barry Balla Keita Mory Sangare Jacques Faya Millimono Moussa Conde Seydou Keita dani.l agbo-panzo Pediatric Surgery Department at Conakry University Hospital Conakry Guinea Universit Gamal Abdel Nasser de Conakry Conakry Guinea General Surgery Department Ignace Deen University Hospital Conakry Guinea

Introduction: Neonatal peritonitis is a rare but serious condition requiring early diagnosis and management. The lack of antenatal diagnosis, the precariousness of neonatal intensive care, and the delay in diagnosis and treatment are the factors of poor prognosis. The objective of this study was to study the epidemiological, diagnostic and therapeutic aspects of neonatal peritonitis in order to improve its management in the pediatric surgery department of the CHU-Donka. Materials and Methods: This is a retrospective descriptive study of the records of patients treated for neonatal peritonitis from January 1, 2017 to December 31, 2022. Results: Results: We compiled 17 records of patients operated on for neonatal peritonitis, representing a frequency of 3.85% and an incidence of 2.83 cases/year. The mean age of our patients was 8.29 days, with extremes of D0 and D25. Males were more dominant, with a frequency of 71% and a sex ratio of 2.4. The average consultation time was 72 h, with extremes of 12 h and 144 h. Abdominal bloating was the main reason for consultation (100%). Fever and vomiting were frequent, at 70.59% and 82.35% respectively. PSA revealed pneumoperitoneum in 12 patients (70.59%). The colon was the most frequent site of perforation at 29.41%. ECUN was the main etiology with 35.29%. Ostomy was the main surgical procedure in 58.82% of cases, followed by suture excision in 29.41%. Postoperative follow-up was simple in 3 patients (17.65%) and complicated in 14 (82.35%). Sepsis was the main cause of death (47.59%). The mortality rate was 76.47%. Conclusion: Mortality from neonatal peritonitis remains high in developing countries. Early diagnosis, early surgical management, and the presence of well-equipped neonatal intensive care units with qualified staff are essential for an improvement in the prognosis of neonatal peritonitis.

关键词： Etiology Newborns Gastrointestinal Perforation

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Designing Sustainable Thermal Energy System with Electro-Photo Conversion

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Journal of Thermal Science 2024年第5期33卷 1642-1656页

作者： Praveen BARMAVATU Sunil Kumar KOTHAPAllI Abilash RADHAKRISHNAN dani Jermisha RAIlIS Department of Mechanical Engineering Faculty of EngineeringUniversidad Tecnologica MetropolitanaSantiago 7810003Chile SRKR Engineering College BhimavaramWest GodavariAndhra Pradesh 534204India Maria College of Engineering and Technology Attoor629177Tamil NaduIndia

Thermal energy conversion and also storage system is to advance knowledge and develop practical solutions at the intersection of micro and nano-scale engineering,energy conversion,and *** research addresses the challenge of enhancing these critical aspects to ensure prolonged system performance and durability in the context of evolving energy *** research analyses the anti-oxidation and filtration behaviours of micro and nano-scale structures in the context of electro-and photo-thermal energy conversion and also storage systems.A micro multiscale hierarchical structure strategy is presented to fabricate multi-scale double-layer porous wick evaporators with the electrospun nanofibers made of gelatin-polyamide 6(GPA6)and Ti_(3)C_(2)T_(x)MXene/silver nanowire with Cellulose Micro/NanoFibers(CMNF)cryogens by using spark plasma sintering(SPS)based high-pressure hydrothermal treatment *** excellent anti-oxidation effect was offered by coating the film in thermal conditions and the anti-oxidation properties were further examined from 500℃to850℃.The results are analysed using Matlab software to improve the efficiency of energy conversion processes by integrating nanostructures into thermal systems,to increase energy output while minimizing *** silver nanowire is with a heat transfer coefficient of 78%,a mass remaining rate of 98.7%,and an energy storage efficiency of 23.8%.This study enhances energy density and duration by integrating nanostructures into thermal systems while minimizing energy losses,and it not only exhibits excellent anti-oxidation properties but also possesses superior filtration capabilities for designing and engineering multifunctional nanomaterials.

关键词： heat exchanger micro and nano-scale structure electro-and photo-thermal energy conversion and storage system anti-oxidation filtration behaviour

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Management of Acute Idiopthic Intestinal Invaginal in Infants at Conakry University Hospital

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Open Journal of Pediatrics 2024年第5期14卷 937-950页

作者： Thierno Saidou Barry Mohamed lamine Sadou Sacko Balla Keita Mory Sangare Fanta Kourouma Moussa Conde Baldé Aissatou Bailo Seydou Keita dani.l agbo-panzo Pediatric Surgery Department of the Conakry University Hospital Conakry Guinea Gamal Abdel Nasser University of Conakry Conakry Guinea Pediatrics Department Albert Royer Childrens Hospital Cheikh Anta Diop University of Dakar (UCAD) Dakar Senegal General Surgery Department of the Ignace Deen University Hospital Conakry Guinea

Introduction: Acute intestinal intussusception (AII) has been known for a long time but its diagnosis sometimes remains difficult and its etiologies, particularly the idiopathic forms, poorly elucidated. The objective of this study was to describe the clinical and therapeutic aspects of acute intestinal intussusception in order to contribute to the improvement of the management of this condition in the pediatric surgery department of the Donka National Hospital. Materials and Methods: This is a retrospective descriptive study of patients taken in charge of acute idiopathic intestinal intussusception over a period of 7 years (January 2017 to December 31, 2023). Results: We collected 72 patients operated on for IIA, i.e. a hospital frequency of 1.1% and an incidence of 10.3 cases per year. The mean age was 16.58 months with extremes of 3 months and 28 months. The sex ratio was 12.5 in favor of the boy. The triad of ombredanne dominated the clinical picture and paroxysmal abdominal pain with period of calm represented the main reason for consultation (72 cases) i.e. 100%, followed by vomiting (62 cases) and rectal bleeding (50 cases). Ultrasound was performed in 56 patients visualizing the intussusception sausage in 54 patients or 75%. The most common anatomoclinical variety of intussusception was the ileo-caeco-colic form with 35 cases (or 38%) followed by the ileocolic form 24 cases (33%). The surgical procedure performed was a manual reduction in 54 patients or 75% and an anastomosis resection in 18 patients;the appendectomy of principle was done in 62.25%. The postoperative course was simple in 64 patients or 88.88%. The mortality rate was 6.94 %. Conclusion: AII is a common abdominal surgical emergency in infants. Recognition of the Ombredanne triad especially abdominal pain with a period of calm in children and infants in particular is an important element for vital prognosis. Early diagnosis and close interdisciplinary cooperation between pediatric, radiology an

关键词： Acute Idiopathic Intussusception Infant Intussusception Sausage Pediatric Surgery

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Congenital Cervico-Mandibular Cystic lymphangioma in Pediatric Surgical Setting in Guinea

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Open Journal of Pediatrics 2024年第1期14卷 164-173页

作者： Thierno Saïdou Barry Mohamed lamine Sadou Sacko Balla Keita Aissatou Bailo Balde Mamadou Alpha Diallo Moussa Conde Ibrahima Kalil Dioubate Mory Sangare Salamata Sall Mariama Dalanda Diallo dani.l agbo-panzo Pediatric Surgery Department Donka National Hospital (HND) of Conakry University Hospital (Gamal Abdel Nasser University of Conakry (UGANC) of Guinea) Conakry Guinea Hadja Bilguissou BARRY Medical-Surgical Clinic (HBB) Conakry Guinea Albert Royer Children’s Service Cheikh Anta DIOP University (UCAD) Dakar Senegal Surgery Department of the Regional Hospital Center of Ziguinchor (CHRZ) Ziguinchor Senegal

Introduction: Cystic lymphangiomas are rare benign malformative tumors of the lymphatic system of obscure etiopathogenesis. The cervico-facial location remains the most common (75%). Although benign, these tumors remain potentially fatal, due to possible compression of the upper aero-digestive tract. The aim of this work is to study the epidemiological, diagnostic and therapeutic characteristics of cervico-mandibular congenital cystic lymphangiomas in the pediatric surgery department of the Donka National Hospital (HND) Conakry. Patients and methods: This is a retrospective and descriptive study of 13 files lasting 7 years from January 2015 to December 31, 2021. The files of children whose age is less than or equal to 15 years operated on cervical tumor with histological evidence of cystic lymphangioma were retained. The data were analyzed using SPSS statistical software 21 and anonymously. Results: The incidence of this study was 1.86 cases per year and a sex ratio of 0.62 in favor of girls. The average age was 8 months 19 days. In the antecedents, we only find poorly monitored pregnancies. The average size of the tumors was 11.85 cm. Cervical ultrasound and standard x-ray of the cervical mass were the only examinations performed. Total surgical excision of the cervical tumor was performed in all patients. The mass was polycystic on exploration. The histological examination of the surgical specimens was in favor of a cystic lymphangioma. The surgical consequences were simple in 11 patients (84.62%) and complicated by parietal suppuration in 2 cases (15.38%). There were no cases of recurrence after one year of follow-up. Conclusion: Cervico-mandibular cystic lymphangiomas are the most frequent locations of congenital lymphangiomas in children. Their severity is linked to the risk of compression of the aero-digestive tracts. Their diagnosis must be confirmed by the histology of the surgical specimen. Despite the therapeutic arsenal, excision of the cystic mass remain

关键词： Congenital Cystic lymphangioma (lKC) Child Pediatric Surgery Guinea

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Interaction between diet and genetics in patients with inflammatory bowel disease

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World Journal of Gastroenterology 2024年第12期30卷 1644-1650页

作者： dani.la Oliveira Magro ligia Yukie Sassaki Júlio Maria Fonseca Chebli Department of Surgery Faculty of Medical SciencesState University of Campinas(UNICAMP)Campinas 13083-970São PauloBrazil Department of Internal Medicine Medical SchoolSao Paulo State University(UNESP)Botucatu 18618-687São PauloBrazil Department of Medicine University Hospital of the Federal University of Juiz de ForaUniversity of Juiz de Fora School of MedicineJuiz de Fora 36036-247Minas GeraisBrazil

In this editorial,we comment on the article by Marangoni et al,published in the recent issue of the World Journal of Gastroenterology 2023;29:5618-5629,about“Diet as an epigenetic factor in inflammatory bowel disease”.The authors emphasized the role of diet,especially the interaction with genetics,in promoting the inflam-matory process in inflammatory bowel disease(IBD)patients,focusing on DNA methylation,histone modifications,and the influence of *** this editorial,we explore the interaction between genetics,gut microbiota,and diet,in an only ***,we provided dietary recommendations for patients with *** Western diet,characterized by a low fiber content and deficiency the micronutrients,impacts short-chain fatty acids production and may be related to the pathogenesis of *** the other hand,the consumption of the Mediter-ranean diet and dietary fibers are associated with reduced risk of IBD flares,particularly in Crohn’s disease(CD)*** to the dietary guidance from the International Organization for the Study of Inflammatory Bowel Diseases(IOIBD),the regular consumption of fruits and vegetables while reducing the consumption of saturated,trans,dairy fat,additives,processed foods rich in maltodextrins,and artificial sweeteners containing sucralose or saccharine is recommended to CD *** patients with ulcerative colitis,the IOIBD recommends the increased intake of natural sources of omega-3 fatty acids and follows the same restrictive recommendations aimed at CD patients,with the possible inclusion of red *** conclusion,IBD is a complex and hetero-geneous disease,and future studies are needed to elucidate the influence of epigenetics on diet and microbiota in IBD patients.

关键词： Diet Genetics MicroRNAs Gastrointestinal microbiome Inflammatory bowel diseases Crohn’s disease

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Mid-term survival of the Optimys short stem: A prospective case series of 500 patients

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World Journal of Orthopedics 2024年第3期15卷 257-265页

作者： Bryan Hamans Sheryl de Waard Sjoerd Kaarsemaker Esther R C Janssen Inger N Sierevelt Gino M M J Kerkhoffs dani.l Haverkamp Department of Orthopaedic Surgery Xpert ClinicAmsterdam 1101EANetherlands Department of Orthopedic Surgery Amsterdam University Medical CenterAmsterdam 1105 AZNetherlands Esther R C Janssen Department of Orthopaedic SurgeryViecuri Medisch CentrumVenlo 5912 BLNetherlands Centre for Orthopaedic Research Spaarne ZiekenhuisHoofddorp 2134 TMNetherlands Department of Orthopaedic Surgery and Sports Medicine Amsterdam UMC-Location AMCAmsterdam 1105 AZNetherlands Department of Orthopedic Surgery Xpert Orthopedic Surgery ClinicAmsterdam 1101 EANetherlands

BACKGROUND In recent years,there has been an increase in the number of total hip arthroplasty procedures in the younger patient *** active group has higher expectations of their prosthesis in comparison to the older population,and there is a greater physical demand for the *** femoral stems were in-troduced to retain proximal bone stock and joint biomechanics and became more common to implant in this specific ***,the long-term survival and functional outcomes of various short stems are still being investigated in different *** To determine the 5-year survival of the Optimys hip *** This was a prospective multicenter cohort study of 500 patients conducted in two hospitals in the *** patients received the Optimys short stem(Mathys ltd,Bettlach,Switzerland).The primary outcome measure was survival of the hip stem,with revision as the *** secondary outcome measurements included patient-reported outcome measures(PROMs).Kaplan-Meier analysis was used to calculate the 5-year survival ***-minus-log transformation was performed to calculate the 95%confidence interval(95%CI).Mixed model analyses were performed to assess the course of the PROMs during the 1st 2 years after *** were modeled separately for the 1st and 2nd years to calculate the yearly change in PROMs during both follow-up periods with accompanying 95%*** The mean age of the total 500 patients was 62.3 years(standard deviation:10.6)and 202 were male(40%).At a median follow-up of 5.5 years(interquartile range:4.5-6.7),7 patients were deceased and 6 revisions were registered,for infection(n=3),subsidence(n=2)and malposition(n=1).This resulted in an overall 5-year survival of 98.8%(95%CI:97.3-99.5).If infection was left out as reason for revision,a stem survival of 99.4%(95%CI:98.1-99.8)was *** questionnaires were completed by 471 patients(94%),317 patients(63%)completed the 1-year follow-up questionna

关键词： Total hip arthroplasty Femoral stem Short stem Optimys Survival 5-year survival Revision PROMs

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Mid-term clinical outcomes of the uncemented Robert Mathys pressfit cup

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World Journal of Clinical Cases 2024年第19期12卷 3684-3691页

作者： Kishan Ritek Ramsodit Inger N Sierevelt Esther R C Janssen Sjoerd Kaarsemaker dani.l Haverkamp Department of Orthopedic Surgery Xpert Clinics AmsterdamAmsterdam 1101EANorth-HollandNetherlands Department of Orthopedic Spaarne Gasthuis AcademyHoofddorp 2134 TMNetherlands Department of Orthopaedic Surgery Viecuri Medical CentreVenlo 5912 BLNetherlands Department of Orthopaedic Surgery Viecuri Medisch CentrumVenlo 5912 BLNetherlands

BACKGROUND The use of uncemented cups during total hip arthroplasty(THA)has gained popularity in recent *** Robert Mathys(RM)pressfit cup,an uncemented monoblock implant is expected to preserve bone density due to its composition and external surface,while reducing backside wear with its monoblock *** factors should lead to a high survival rate of the *** To evaluate the mid-term survival and functional outcome of the RM Pressfit cup in a large study *** Between 2011 and 2020,we included 1324 patients receiving a primary THA using the RM pressfit *** clinical follow-up was performed at 2 years postoperatively with the Dutch arthroplasty register used to assess implant status *** for acetabular failure and reason for revision were reported to evaluate implant survival,while the hip disability and osteoarthritis outcome score(HOOS)scores were used to assess functional *** The mean age at surgery was 64.9 *** mean follow-up was 4.6 *** the 1324 THAs performed,13 needed cup revisions within 5 years after index THA:5 due to aseptic loosening,6 due to infection,2 due to dislocation and 2 due to other *** resulted in a 5-year cup survival of 98.8%(95%CI:98.1-99.5).Nine of the cup revisions occurred within the first year after index *** scores increased significantly in all domains during the first year and levelled out during the second *** In the present study,the RM pressfit cup demonstrated excellent clinical outcomes at mid-term follow-up;however,future studies are needed to assess the long-term outcomes of this acetabular implant.

关键词： Total hip arthroplasty Uncemented RM pressfit cup Hip osteoarthritis Cup revision Pressfit Aseptic loosening

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CD4^(+)T cells produce IFN-I to license cDC1s for induction of cytotoxic T-cell activity in human tumors

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Cellular & Molecular Immunology 2024年第4期21卷 374-392页

作者： Xin lei dani.l C.de Groot Marij J.P.Welters Tom de Wit Ellen Schrama Hans van Eenennaam Saskia J.Santegoets Timo Oosenbrug Annemarthe van der Veen Joris l.Vos Charlotte l.Zuur Noel F.C.C.de Miranda Heinz Jacobs Sjoerd H.van der Burg Jannie Borst Yanling Xiao Department of Immunology Leiden University Medical CenterLeidenThe Netherlands Oncode Institute Leiden University Medical CenterLeidenThe Netherlands Department of Tumor Biology and Immunology The Netherlands Cancer InstituteAmsterdamThe Netherlands Department of Medical Oncology Oncode InstituteLeiden University Medical CenterLeidenThe Netherlands IMMIOS B.V. OssThe Netherlands Division of Medical Oncology The Netherlands Cancer InstituteAmsterdamThe Netherlands Department of Otorhinolaryngology leiden University Medical Center LeidenThe Netherlands Department of Pathology Leiden University Medical CenterLeidenThe Netherlands

CD4^(+)T cells can"help"or"license" conventional type 1 dendritic cells(cDC1s)to induce CD8^(+)cytotoxic T lymphocyte(CTl)anticancer responses,as proven in mouse *** recently identified cDC1s with a transcriptomic imprint of CD4^(+)T-cell help,specifically in T-cell-infiltrated human cancers,and these cells were associated with a good prognosis and response to PD-1-targeting ***,we delineate the mechanism of cDC1 licensing by CD4^(+)T cells in *** CD4^(+)T cells produce IFNβvia the STING pathway,which promotes MHC-I antigen(cross-)presentation by cDC1s and thereby improves their ability to induce CTl anticancer *** cooperation with CD40 ligand(l),IFNβalso optimizes the costimulatory and other functions of cDC1s required for CTl response ***-I-producing CD4^(+)T cells are present in diverse T-cell-infiltrated cancers and likely deliver“help”signals to CTls locally,according to their transcriptomic profile and colocalization with“helped/licensed”cDCs and tumor-reactive CD8^(+)T *** agreement with this scenario,the presence of IFN-I-producing CD4^(+)T cells in the TME is associated with overall survival and the response to PD-1 checkpoint blockade in cancer patients.

关键词： CD4^(+)T-cell help cDC1 licensing IFN-I signaling CD40 costimulation (cross-)presentation CTl priming Tumor control

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