Comparative efficacy and safety of immunotherapy for patients with advanced or metastatic esophageal squamous cell carcinoma: a systematic review and network Meta-analysis.

BACKGROUND: The study aimed to compare efficacy and safety of various immune checkpoint inhibitors for patients with advanced or metastatic esophageal squamous cell carcinoma (ESCC). METHODS: We searched Medline, Web of Science, Cochrane Central Register of Controlled Trials, Embase, Clinical Trials.gov and several international conference databases from January 1, 2000 to December 19, 2021. We conducted Bayesian network meta-analysis to assess the relative effects among treatments. Outcomes included overall survival (OS), progression-free survival (PFS), overall response rate and adverse events. RESULTS: Ten eligible trials with 5250 patients were included. Toripalimab and Camrelizumab plus chemotherapy were preferred to rank first on OS (probability, 61%) and PFS (probability, 37%) in the first-line setting, respectively. In refractory patients, Sintilimab and Camrlizumab were most likely to be ranked first on OS (probability, 37%) and PFS (probability, 94%). The toxicity related to immunotherapy was manageable in clinical trials. Camrelizumab and Nivolumab had the less adverse events of grade 3 or higher in the first and refractory setting, respectively. CONCLUSIONS: This study found that Toripalimab and Camrelizumab plus chemotherapy were likely to be the best option in terms of OS and PFS in the first-line setting for patients with advanced or metastatic ESCC respectively. Sintilimab and Camrelizumab were the preferred options for OS and PFS in refractory patients respectively. The toxicity of immunotherapy was different from conventional chemotherapy, but manageable in patients with ESCC. TRIAL REGISTRATION: PROSPERO registration number: (CRD 42021261554).

Species Diversification of the Coniferous Pathogenic Fungal Genus Coniferiporia (Hymenochaetales, Basidiomycota) in Association with Its Biogeography and Host Plants.

Coniferiporia, belonging to Hymenochaetaceae and now segregated from Phellinidium, is a wood-inhabiting fungal genus with three species, each having a specific geographic distribution and a strong host specificity as a forest pathogen of coniferous trees. In this study, the species diversity of Coniferiporia is further clarified with the aid of a wider sampling and multilocus-based phylogenetic analysis, which reveals a new species Coniferiporia uzbekistanensis. The molecular clock and ancestral geographic origin analyses indicate that the ancestor of Coniferiporia emerged in one of the Pinaceae and Cupressaceae, then jumped to the other plant family originated in eastern Eurasia 17.01 million years ago (Mya; 95% highest posterior density: 9.46 to 25.86 Mya), and later extended its distribution to western North America, Central Asia, and eastern Europe. Coniferiporia sulphurascens speciated on Pinaceae in eastern Eurasia 8.78 Mya (9.46 to 25.86 Mya) and then extended its distribution to western North America and eastern Europe. Coniferiporia qilianensis and C. uzbekistanensis speciated on Juniperus przewalskii in eastern Eurasia 3.67 Mya (0.36 to 8.02 Mya) and on Juniperus polycarpos in Central Asia 4.35 Mya (0.94 to 8.37 Mya), respectively. The speciation event of Coniferiporia weirii occurred 4.45 Mya (0.77 to 9.33 Mya) right after the emergence of its host, the endemic Cupressaceae species Thuja plicata, and soon after, this fungus evolved to also inhabit another endemic Cupressaceae species Calocedrus decurrens. In summary, this study for the first time unambiguously clarified and timed the adaptive evolutionary event of Coniferiporia in association with its biogeography and host plants.

Optimize the dose of oxaliplatin for locally advanced rectal cancer treated with neoadjuvant chemoradiotherapy followed by radical surgery and adjuvant chemotherapy.

BACKGROUND: Addition of oxaliplatin to capecitabine remains controversial for locally advanced rectal cancer (LARC). And cumulative oxaliplatin dose (COD) varied among clinical trials showing different therapeutic effects of this regimen. The objective of this study was to explore how COD affected tumor metastasis and patient survival. METHODS: Totally 388 patients diagnosed with stage cII-III rectal cancer and treated with neoadjuvant chemoradiotherapy followed by radical surgery plus adjuvant chemotherapy were consecutively enrolled into this study and retrospectively reviewed. After grouping by total chemotherapy cycle (TCC), influences of COD on adverse effects and patients' survivals were analyzed in each group. Univariate and multivariate survival analyses were performed through Kaplan-Meier approach and COX proportional hazards model, respectively. Age, gender, anemia, differentiation, carcinoembryonic antigen, carbohydrate antigen 19-9, pretreatment clinical stage and postsurgical pathologic stage were used as covariates. RESULTS: COD < 460 mg/m2 emerged as an independent predictor of poorer overall, metastasis-free and disease-free survivals, in patients treated with TCC ≤ 7. The hazard ratios were 1.972, 1.763 and 1.637 (P values were 0.021, 0.028 and 0.041), respectively. But it was note-worthy that COD ≥460 mg/m2 increased incidence of acute toxicities from 38.4 to 70.8% (P < 0.001). And in patients treated with TCC ≥ 8, COD failed to be a prognosticator. CONCLUSIONS: For LARC patients treated with insufficient TCC (≤ 7), oxaliplatin of ≥460 mg/m2 might be needed to improve survival, though it might resulted in more acute toxicities.

Comparing docetaxel plus cisplatin versus fluorouracil plus cisplatin in esophageal squamous cell carcinoma treated with neoadjuvant chemoradiotherapy.

OBJECTIVE: The optimal neoadjuvant chemoradiotherapy (CRT) regimen in esophageal cancer has not yet been defined. This study was aimed to compare the differences in pathologic response and survival between docetaxel/cisplatin and fluorouracil/cisplatin as neoadjuvant CRT in locally advanced esophageal squamous cell carcinoma (SCC). METHODS: We retrospectively analyzed patients with thoracic esophageal SCC who received neoadjuvant CRT followed by esophagectomy from 2000 to 2014. After adjusting for sex, age, performance status, tumor length, tumor location and clinical TNM stage, 32 docetaxel/cisplatin-treated patients were matched to 62 patients who received fluorouracil/cisplatin at a ratio of 1:2. Treatment toxicity, pathologic complete response (pCR) and survival outcomes were compared between groups. RESULTS: Baseline characteristics were well balanced between groups. The pCR rate in the docetaxel/cisplatin group was higher than that in the fluorouracil/cisplatin group but without significant difference (40.6% vs. 30.6%, P = 0.333). The 3-year overall survival rate in the docetaxel/cisplatin group was 64.9% versus 46.0% in the fluorouracil/cisplatin group (P = 0.039). There were no significant differences in incidence of treatment toxicity during CRT or surgical complications between groups, with the exception of Grade 3-4 hematologic toxicity (37.5% vs. 17.7%, P = 0.035), which was more frequent in the docetaxel/cisplatin group. CONCLUSIONS: Docetaxel/cisplatin might be associated with more favorable survival than fluorouracil/cisplatin in esophageal SCC treated with neoadjuvant CRT. Prospective validation is warranted.

Is There a Correlation Between Clinical Complete Response and Pathological Complete Response After Neoadjuvant Chemoradiotherapy for Esophageal Squamous Cell Cancer?

OBJECTIVE: The aim of this study was to investigate the correlation between clinical complete response (cCR) and pathologic complete response (pCR) after neoadjuvant chemoradiotherapy (CRT) for esophageal squamous cell cancer (ESCC). METHODS: Between May 2001 and April 2013, a total of 158 patients with thoracic ESCC treated with neoadjuvant CRT followed by surgery were analyzed. Of these patients, 31 had stage IIb disease and 127 had stage III disease. All patients received concurrent platinum-based chemotherapy with conformal radiotherapy (40 Gy in 20 fractions, five fractions per week for 4 weeks). RESULTS: A total of 65 patients (41.1 %) achieved pCR. Of 44 patients (27.8 %) who achieved cCR after neoadjuvant CRT, 32 (72.7 %) also achieved pCR. On the other hand, only 33 (28.9 %) of 114 patients with non-cCR had pCR. The sensitivity, specificity, positive predictive value, and negative predictive value of cCR for predicting pCR was 87.1, 49.2, 71.1, and 72.7 %, respectively. The median follow-up period was 28.9 months, and overall survival (OS) for the entire group was 38.1 months. Patients who achieved cCR had significantly better 3-year OS than those with non-cCR (71.6 % vs. 46.9 %; p = 0.012). CONCLUSIONS: Our results indicate that cCR after neoadjuvant CRT is significantly correlated with pCR and survival of patients with ESCC. Further studies are required to confirm the prognostic value of cCR after neoadjuvant CRT.

Epidermal Growth Factor Receptor Mutation Status and Treatment Outcome for R0-Resected Patients with Stage 3 Non-small Cell Lung Cancer.

BACKGROUND: This study aimed to investigate the association of epidermal growth factor receptor (EGFR) mutation status with treatment outcome for patients with stage 3 non-small cell lung cancer (NSCLC) who had undergone a complete (R0) resection. METHODS: The study identified 3445 NSCLC patients tested for EGFR mutations between September 2001 and December 2011 at the Sun Yat-Sen University Cancer Center. Of these patients, 224 were stage 3 patients who had undergone R0 resections. RESULTS: These 224 R0-resected, pathologic stage 3A and 3B patients included 150 patients with wild-type EGFR and 74 patients with EGFR mutations. During a median follow-up period of 42 months (range, 4-133 months), pathologic stage was shown to be the only prognostic factor. The 3-year overall survival (OS) rates did not differ significantly from the OS rates for the wild-type and mutant EGFR groups (62.0 vs 67.2 %; p = 0.789). Multivariate analyses indicated that the patients in the mutant EGFR group with EGFR exon 19 mutations had a better OS rate (73.0 vs 61.1 %; p = 0.026). CONCLUSIONS: Cancer stage remained the significant prognostic factor in R0-resected stage 3 NSCLC patients. The presence of an EGFR mutation is more likely to be a predictive marker for the response to treatment with tyrosine kinase inhibitors. In the EGFR mutant group, the patients with an exon 19 mutation had better 3-year OS rates. These findings might be considered in future study designs.

Long non-coding RNA HOTTIP is correlated with progression and prognosis in tongue squamous cell carcinoma.

Long non-coding RNAs (lncRNAs) have been demonstrated to be a critical role in cancer progression and prognosis. However, little is known about the pathological role of lncRNA HOXA transcript at the distal tip (HOTTIP) in tongue squamous cell carcinoma (TSCC) patients. The aim of this study is to measure the expression of lncRNA HOTTIP in TSCC patients and to explore the clinical significance of the lncRNA HOTTIP. The expression of lncRNA HOTTIP was measured in 86 TSCC tissues and 14 adjacent non-malignant tissues using qRT-PCR. In our study, results indicated that lncRNA HOTTIP was highly expressed in TSCC compared with adjacent non-malignant tissues (P < 0.001) and positively correlated with T stage (T1-2 vs. T3-4, P = 0.023), clinical stage (I-II stages vs. III-IV stages, P = 0.018), and distant metastasis (absent vs. present, P = 0.031) in TSCC patients. Furthermore, we also found that lncRNA HOTTIP overexpression was an unfavorable prognostic factor in TSCC patients (P < 0.001), regardless of T stage, distant metastasis, and clinical stage. Finally, overexpression of lncRNA HOTTIP was supposed to be an independent poor prognostic factor for TSCC patients through multivariate analysis (P = 0.023). In conclusion, increased lncRNA HOTTIP expression may be serve as an unfavorable prognosis predictor for TSCC patients. Nevertheless, further investigation with a larger sample size is needed to support our results.

Association of insulin-like growth factor-binding protein-3 with radiotherapy response and prognosis of esophageal squamous cell carcinoma.

BACKGROUND: Insulin-like growth factor-binding protein-3 (IGFBP-3) is suggested to predict the radiosensitivity and/or prognosis of patients with esophageal squamous cell carcinoma (ESCC). The present study was designed to investigate the clinical and prognostic effects of IGFBP-3 on ESCC. METHODS: IGFBP-3 was detected by immunohistochemistry in paraffin-embedded tissues from 70 ESCC patients treated with radiotherapy alone and further examined by western blotting analysis in 10 pairs of fresh ESCC tissues and adjacent non-malignant esophageal specimens. Receiver operating characteristic (ROC) analysis was used to determine cut-off scores for tumor positivity and to evaluate patient survival status. The χ(2) test was performed to analyze the association of IGFBP-3 expression with clinical characteristics and radiotherapy response. Associations between prognostic outcomes and IGFBP-3 expression were investigated using Kaplan-Meier analysis and the Cox proportional hazards model. RESULTS: The threshold for IGFBP-3 positivity was set to greater than 65% [area under the ROC curve (AUC)=0.690, P<0.019]. Of the 70 ESCC patient tissues tested, 32 (45.7%) were defined as having high IGFBP-3 expression. The levels of IGFBP-3 protein expression were decreased in 70.0% (7 of 10) of ESCC tissues compared with adjacent non-malignant esophageal tissue. In addition, IGFBP-3 expression was associated with pathologic classification (P<0.05 for T, N, and M categories and clinical stage). Patients with elevated protein level of IGFBP-3 in the tumor had an improved radiotherapy response and prolonged overall survival (P<0.001). CONCLUSIONS: High level of IGFBP-3 expression in ESCC associates with early clinical stages and are predictive for favorable survival of the patients treated with radiotherapy.

[Diagnosis and Treatment of Pituitary Carcinoma].

The early diagnosis and treatment of pituitary carcinoma is difficult. The diagnosis is often delayed, and the confirmation of a diagnosis requires the presence of distant subarachnoid,brain or systemic metastasis from the primary pituitary tumor in the sella and also needs the evidences of pathology and imaging of the primary pituitary carcinoma and metastases. Treatment of pituitary carcinoma includes surgery, radiation therapy ,hormone therapy, chemotherapy, and molecularly targeted therapy; however, these methods are mainly palliative and can not prolong the survival. The prognosis remains poor. Efforts should be made to develop more effective diagnosis and treatment options.

N -methyl- N -nitrosourea-induced retinal degeneration in mice.

Mouse retinal degeneration models have been investigated for many years in the hope of understanding the mechanism of photoreceptor cell death. N -methyl- N -nitrosourea (MNU) has been previously shown to induce outer retinal degeneration in mice. After MNU was intraperitoneally injected in C57/BL mice, we observed a gradual decrease in the outer nuclear layer (ONL) thickness associated with photoreceptor outer segment loss, bipolar cell dendritic retraction and reactive gliosis. Reactive gliosis was confirmed by increased GFAP protein levels. More serious damage to the central retina as opposed to the peripheral retina was found in the MNU-induced retinal degeneration model. Retinal ganglion cells (RGC) appear to be spared for at least two months after MNU treatment. Following retinal vessel labelling, we observed vascular complexes in the distal vessels, indicating retinal vessel damage. In the remnant retinal photoreceptor of the MNU-treated mouse, concentrated colouring nuclei were detected by electron microscopy, together with the loss of mitochondria and displaced remnant synaptic ribbons in the photoreceptor. We also observed decreased mitochondrial protein levels and increased amounts of nitrosylation/nitration in the photoreceptors. The mechanism of MNU-induced apoptosis may result from oxidative stress or the loss of retinal blood supply. MNU-induced mouse retinal degeneration in the outer retina is a useful animal model for photoreceptor degeneration diseases, such as age-related macular degeneration (AMD) and retinitis pigmentosa (RP).

[Effect of laminarin polysaccharide on activity of matrix metalloproteinase in photoaging skin].

OBJECTIVE: To study the effect of laminarin polysaccharide (LP) on the activity of matrix metalloproteinase of photoaging skins. METHOD: Kunming SPF mice were prepared with back hair shaved, and randomly divided into the control group, the model group, the LP low does group (LP-L, 1 mg x kg(-1)), the LP high dose group (LP-H, 5 mg x kg(-1)) and the Vit E (100 mg x kg(-1)) group. They were abdominally injected with drugs twice on a daily basis. Except for the control group, all groups were exposed to ultraviolet rays for 1 hour every day, five times on a weekly basis, with accumulated exposure dose of UVB being 21.60 J x cm(-2) and accumulated exposure dose of UVA being 84.02 J x cm(-2). Eight weeks later, exposed back skins were collected to detect thickness of dermis by HE stain, content of hydroxyproline (Hyp) by chemical colorimetry, and serum MMP-1 and TIMP-1 content by ELISA. In addition, matrix metalloproteinase-1 (MMP-1) mRNA and relative content of tissue inhibitor of metalloproteinase-1 (TIMP1) mRNA was analyzed with Real-time PCR. RESULT: Compared with the model group, the LP-H group could significantly increase the thickness of dermis, skin Hyp content and serum TIMP-1 level, and decrease relative content of MMP-1 mRNA in skin and MMP-1 content in serum. CONCLUSION: LP can regulate the metabolism of collagen photoaging skins by adjusting the activity of matrix metalloproteinase.

Taxonomy of Hyphodermella: a case study to show that simple phylogenies cannot always accurately place species in appropriate genera.

The genus is a special and crucial taxonomic rank compared with others above the species level, because a species has to be placed in a certain genus instead of any other higher ranks. With more and more new species being described, the placements of their generic position are sometimes incorrect due to the simple phylogenies resulting from inappropriate sampling. Here, we focus on the taxonomy of a small wood-inhabiting fungal genus Hyphodermella. With the most comprehensive sampling to date, the phylogenetic position of Hyphodermella within Phanerochaetaceae is rearranged by employing the same ITS and nLSU regions as in previous studies and also the ITS, nLSU, rpb1, rpb2 and tef1α regions. Three species are excluded from Hyphodermella: H. poroides is placed in a newly introduced monotypic genus Pseudohyphodermella, while H. aurantiaca and H. zixishanensis are transferred to Roseograndinia. Hyphodermella suiae is described as a new species from South China and Vietnam. Keys to eight species in Hyphodermella and five in Roseograndinia are provided. Beyond solving the taxonomic issue of Hyphodermella itself, the current study also aims to suggest that all fungal taxonomists especially beginners should keep in mind to sample as many comprehensive taxa as possible in phylogenetic analyses.

Xenasmatellales ord. nov. and Xenasmatellaceae fam. nov. for Xenasmatella (Agaricomycetes, Basidiomycota).

In the era of molecular phylogeny as dominant evidence in fungal taxonomy, the taxonomic framework of fungi adopted from morphological characteristics has been largely updated. Compared with other fungal groups, macrofungi underwent fewer updates at the order and higher level. In this study, the taxonomic placement of a poorly known macro-basidiomycetous genus Xenasmatella is studied. Phylogenetic and molecular clock analyses inferred from a seven-locus dataset support that the genus represents an order rank lineage. Accordingly, a monotypic order Xenasmatellales and a monotypic family Xenasmatellaceae are newly introduced for Xenasmatella within Agaricomycetes. The species diversity and relationships of Xenasmatella are further clarified with the aid of the phylogenetic analysis inferred from a four-locus dataset. In association with morphological characteristics, a new species Xenasmatella hjortstamii is described. Moreover, the distribution of Xenasmatella ailaoshanensis, X. gossypina, and X. wuliangshanensis previously known only from type localities in Yunnan Province, China are expanded. In addition, two unnamed single-specimen lineages of Xenasmatella from Victoria State, Australia and Sichuan, China are revealed, likely representing two potential new species of this genus. In summary, the current study updates the taxonomic framework of Agaricomycetes and provides a crucial supplement for comprehensively understanding the evolutionary history of this fungal class.

Species diversity and taxonomy of Scytinostroma sensu stricto (Russulales, Basidiomycota) with descriptions of four new species from China.

Scytinostroma is species-rich genus in Peniophoraceae, Russulales and has been shown to be polyphyletic. In this study, we performed phylogenetic analyses on the core clade of Scytinostroma based on concatenated ITS1-5.8S-ITS2-nrLSU sequence data. Fifteen lineages including four new species from China, Scytinostromabeijingensis, S.boidinii, S.subduriusculum, and S.subrenisporum, were recognized. The genus Michenera was nested within the Scytinostroma s.s. clade in the phylogenetic tree of Peniophoraceae. Sequences of S.portentosum (type species) and S.hemidichophyticum from Europe formed a strongly supported lineage sister to the S.portentosum sample from Canada. It is supposed that the European "S.portentosum" is S.hemidichophyticum, and the former species is restricted in distribution to North America. Scytinostromaduriusculum is supposed to be a species complex. Samples from Sri Lanka (the type locality) formed a lineage sister to those from China, Thailand and Vietnam (described herein as S.subduriusculum) and two samples from France that might represent an undescribed species. The four new species are described and illustrated, and an identification key to all the 14 Scytinostroma s.s. species worldwide is provided. Until now, seven species of Scytinostroma s.s. have been found in China. Our results increased the knowledge of species diversity and taxonomy of corticioid fungi in China.

Preliminary species diversity and community phylogenetics of wood-inhabiting basidiomycetous fungi in the Dabie Mountains, Central China reveal unexpected richness.

Wood-inhabiting fungi have important economic values as well as playing a major ecological role in forest ecosystem cycles. The Dabie Mountains, at the junction of Henan, Hubei, and Anhui Provinces, Central China, provide an ideal climate and favorable niches for the speciation and diversification of various forms of life including fungi. We studied the species diversity and community phylogenetics of wood-inhabiting basidiomycetous fungi that revealed 175 wood-inhabiting basidiomycetous species, of which 20 represented unidentified species, based on morphological and phylogenetic analyses of 575 specimens collected from ten sampling sites. These species belonged to two classes, 11 orders, 42 families, and 106 genera of Basidiomycota, and included 12 edible species, 28 medicinal species, four poisonous species, and seven forest pathogens. Four types of fungal distribution pattern at the genus level were recognized for 65 genera, while another 41 genera could not be placed in any known distribution pattern. The five sampling sites in the eastern part of the Dabie Mountains had significantly higher species diversity and phylogenetic diversity of wood-inhabiting basidiomycetous fungi than those in the western part, and thus deserve priority in terms of conservation. The community of wood-inhabiting basidiomycetous fungi in the Dabie Mountains is generally affected by a combination of habitat filtering and competitive exclusion. This study provides a basis on which to build actions for the comprehensive recognition, utilization, and conservation of wood-inhabiting basidiomycetous fungi in the region.

Redelimitation of Heteroradulum (Auriculariales, Basidiomycota) with H.australiense sp. nov.

Auriculariales accommodates species with diverse basidiomes and hymenophores. From morphological and phylogenetic perspectives, we perform a taxonomic study on Heteroradulum, a recently validated genus within the Auriculariales. The genus Grammatus is merged into Heteroradulum, and thus its generic type G.labyrinthinus is combined with Heteroradulum and G.semis is reaccepted as a member of Heteroradulum. Heteroradulumaustraliense is newly described on the basis of three Australian specimens. Heteroradulumyunnanense is excluded from this genus and its taxonomic position at the generic level is considered uncertain. Accordingly, the circumscription of Heteroradulum is re-delimited and the concept of this genus is adjusted by including irpicoid to poroid hymenophores and a hyphal system with clamp connections or simple septa. A key to all nine accepted species of Heteroradulum is presented.

Alloexidiopsis gen. nov., A Revision of Generic Delimitation in Auriculariales (Basidiomycota).

Auriculariales is a fungal order with highly diverse morphological traits of basidiomes, which partially leads to a poor understanding of its taxonomic system at the generic level. To identify our recently collected specimens of Auriculariales to a species level, we perform a comprehensive phylogenetic analysis of the generic relationships in Auriculariales. In association with morphological characteristics, a new genus Alloexidiopsis belonging to Auriculariaceae is erected with two new species, namely, A. australiensis and A. schistacea. Moreover, Exidiopsis calcea separated from the generic type E. effusa and Heteroradulum niveum and H. yunnanense recently inaccurately described as members of Heteroradulum are recovered in the clade of Alloexidiopsis. These three species are thus transferred to this new genus. One collection of Exidiopsis grisea also falls in the clade of Alloexidiopsis, whereas another collection of this species is separated far from Alloexidiopsis and E. effusa. Since we have no collection to confirm the species identity of E. grisea, its generic position is uncertain. The main taxonomic morphological differences among Alloexidiopsis and related corticioid genera in Auriculariales are summarized. A key to all the five accepted species of Alloexidiopsis is provided. As two unnamed lineages exist in Alloexidiopsis besides the abovementioned five species, it is assumed that more new species will be revealed from this genus under its current circumscription.

Progression-free survival at 3 years is a reliable surrogate for 5-year overall survival for patients suffering from locally advanced esophageal squamous cell carcinoma.

BACKGROUND: Despite 3-year survival being used as a primary endpoint in some randomized controlled trials (RCTs), limited evidence supports the use of intermediate endpoints to evaluate the effect of new therapies in esophageal squamous cell cancer (ESCC). This study aimed to systematically evaluate progression-free survival at 3 years (3-year PFS) and overall survival (OS) among patients with ESCC. METHODS: We identified 528 patients newly diagnosed with locally advanced ESCC who received definitive radiotherapy. OS was compared with an age- and sex-matched general Chinese population using the standardized mortality ratio (SMR). Regression analysis was used to validate the correlation between PFS and OS using published data. RESULTS: The annual risk of progression decreased to 11.5% after 3 years. Patients who did not achieve 3-year PFS had a median postprogression survival (PPS) of 7.3 months, with a 5-year OS rate of 9.6% and a SMR of 15.0 (95% confidence interval [CI], 12.9-17.5). Conversely, the SMR for patients who achieved 3-year PFS was 0.9 (95% CI, 0.6-1.3). We observed a significant correlation between log hazard ratio (HR) (PFS) and log HR (OS) at the trial level (r = 0.89; 95% CI, 0.88-0.90). The strongest correlation was observed between 3-year PFS and 5-year OS in RCTs and retrospective studies. CONCLUSIONS: Patients exhibiting progression within 3 years experienced poor survival, whereas patients achieving 3-year PFS had excellent outcomes. Our study supports 3-year PFS as a reliable primary endpoint for study design and risk stratification in locally advanced ESCC.

Prokaryotic expression of CP gene of Fritillary virus Y infecting Thunberg fritillary and antiserum preparation.

OBJECTIVE: To prepare antiserum against Fritillary virus Y (FVY) CP for detecting FVY and study serological relationships with other viruses. METHODS: Specific primer was designed according to Genbank (accession: AM039800) to amplify CP gene of FVY infecting Thunberg fritillary. Sequence relationship with other potyviruses was made by Blast. The CP gene was inserted into pSBET and expressed in Escherichia coli BL21 (DE3) plys E strain. The object protein was purified by 12% SDS-PAGE firstly and subsequently 5% - 20% gradient SDS-PAGE. The antiserum against the CP was raised in mouse and its specificity was confirmed by Western blot analysis. The reactivity of the antiserum produced to FVY CP was tested by Western blot against the over-expressed coat proteins of 17 potyviruses. The ability to combine with nature FVY particles was confirmed by ELISA analysis. RESULTS: It shared 81.2% nucleotide acids identities with TrVY (Tricyrtis virus Y, AY 864850) CP gene, 68.1% with SMV-P (Soybean mosaic virus Pinellia strain, AJ507388. 2) CP gene and 67.2% with ZYMV (Zucchini yellow mosaic virus Luan isolate) CP gene. The prepared antiserum was special to FVY CP, also reacted moderately to the expressed CP of SMV-P (Soybean mosaic virus Pinellia strain) and weakly to that of ZYMV (Zucchini yellow mosaic virus Luan isolate). CONCLUSION: The antibody could combine to nature FVY particles and the antiserum is suitable for FVY detection by ELISA in large scale.

Addressing widespread misidentifications of traditional medicinal mushrooms in Sanghuangporus (Basidiomycota) through ITS barcoding and designation of reference sequences.

"Sanghuang" refers to a group of important traditionally-used medicinal mushrooms belonging to the genus Sanghuangporus. In practice, species of Sanghuangporus referred to in medicinal studies and industry are now differentiated mainly by a BLAST search of GenBank with the ITS barcoding region as a query. However, inappropriately labeled ITS sequences of "Sanghuang" in GenBank restrict accurate species identification and, to some extent, the utilization of these species as medicinal resources. We examined all available 271 ITS sequences related to "Sanghuang" in GenBank including 31 newly submitted sequences from this study. Of these sequences, more than half were mislabeled so we have now corrected the corresponding species names. The mislabeled sequences mainly came from strains utilized by non-taxonomists. Based on the analyses of ITS sequences submitted by taxonomists as well as morphological characters, we separate the newly described Sanghuangporus subbaumii from S. baumii and treat S. toxicodendri as a later synonym of S. quercicola. Fourteen species of Sanghuangporus are accepted, with intraspecific distances up to 1.30% (except in S. vaninii, S. weirianus and S. zonatus) and interspecific distances above 1.30% (except between S. alpinus and S. lonicerinus, and S. baumii and S. subbaumii). To stabilize the concept of these 14 species of Sanghuangporus, their taxonomic information and reliable ITS reference sequences are provided. Moreover, ten potential diagnostic sequences are provided for Hyperbranched Rolling Circle Amplification to rapidly confirm three common commercial species, viz. S. baumii, S. sanghuang, and S. vaninii. Our results provide a practical method for ITS barcoding-based species identification of Sanghuangporus and will promote medicinal studies and commercial development from taxonomically correct material.